/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-mono:var(--font-mono);--spacing:.25rem;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-body);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.fixed{position:fixed}.relative{position:relative}.static{position:static}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.grid{display:grid}.hidden{display:none}.table{display:table}.grow{flex-grow:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.\[aria-current\]\:visible:is(aria-current){visibility:visible}}:root{--abyss:#061926;--deep-water:#0b3558;--deep-water-2:#0d4765;--current:#087fa6;--aqua:#4dd9d0;--foam:#f2fbfa;--mist:#dff3f1;--sun:#ffd166;--coral:#ed5d60;--ink:#081923;--success:#1e9e6c;--metal:#174d65;--metal-light:#2b7087;--seal:#03121c;--brass:#e0a93d;--page-max:1280px;--radius:.875rem;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}.dark{--foam:#071b2a;--ink:#f2fbfa;--mist:#0b3558}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--foam);min-width:320px;color:var(--ink);font-family:var(--font-body), system-ui, sans-serif;text-rendering:optimizelegibility;margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}a{color:inherit}:focus-visible{outline-offset:3px;outline:3px solid #082f52;box-shadow:0 0 0 6px #fff}::selection{background:var(--aqua);color:var(--abyss)}.site-header{height:70px;padding:0 max(24px, calc((100vw - var(--page-max)) / 2));z-index:30;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#f2fbfaf0;border-bottom:1px solid #cce0df;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;display:grid;position:sticky;top:0}.wordmark{width:max-content;color:var(--deep-water);font:700 20px/1 var(--font-display), sans-serif;letter-spacing:-.04em;align-items:center;gap:10px;text-decoration:none;display:inline-flex}.wordmark__mark{border:2px solid var(--deep-water);background:var(--aqua);border-radius:10px 10px 14px 14px;place-items:center;width:34px;height:34px;display:grid;box-shadow:inset 0 -5px #0b355821}.desktop-nav{align-items:center;gap:28px;display:flex}.desktop-nav a{color:#244c5b;font-size:15px;font-weight:700;text-decoration:none}.desktop-nav a:hover{color:var(--current)}.header-actions{justify-self:end;align-items:center;gap:10px;display:flex}.play-button{border:2px solid var(--abyss);background:var(--sun);min-height:42px;color:var(--abyss);box-shadow:3px 3px 0 var(--abyss);border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:0 18px;font-weight:700;text-decoration:none;transition:transform .18s,box-shadow .18s;display:inline-flex}.play-button:hover{box-shadow:5px 5px 0 var(--abyss);transform:translate(-1px,-1px)}.menu-button{color:var(--deep-water);background:0 0;border:0;padding:10px;display:none}.game-hero{min-height:calc(100svh - 104px);padding:46px max(24px, calc((100vw - var(--page-max)) / 2)) 30px;background:radial-gradient(circle at 10% 15%, #4dd9d033, transparent 30%), radial-gradient(circle at 88% 5%, #489cff2e, transparent 25%), linear-gradient(180deg, #071c2e 0%, var(--abyss) 76%);color:#fff;overflow:hidden}.hero-copy{grid-template-columns:1.4fr 1fr;align-items:end;column-gap:72px;margin:0 auto 32px;display:grid}.eyebrow{color:var(--aqua);font:700 12px/1.2 var(--font-mono), monospace;letter-spacing:.14em;text-transform:uppercase;grid-column:1/-1;margin:0 0 10px}.hero-copy h1{max-width:820px;font:650 clamp(36px, 5vw, 68px)/.94 var(--font-display), sans-serif;letter-spacing:-.055em;margin:0}.hero-copy h1 em{color:var(--sun);font-style:normal}.hero-copy>p:last-child{color:#acd1d5;max-width:520px;margin:0 0 3px;font-size:18px;line-height:1.45}@media (max-width:1020px){.site-header{grid-template-columns:1fr auto}.desktop-nav{display:none}.menu-button{place-items:center;display:grid}.hero-copy{grid-template-columns:1fr;gap:16px}.hero-copy>p:last-child{margin:0}}@media (max-width:760px){.site-header{height:62px;padding-inline:16px}.wordmark{font-size:18px}.wordmark__mark{width:31px;height:31px}.play-button{min-height:38px;padding:0 12px;font-size:14px}.game-hero{min-height:auto;padding:35px 12px 26px}.hero-copy{margin-bottom:24px;padding:0 8px}.hero-copy h1{font-size:clamp(36px,11vw,54px)}.hero-copy>p:last-child{font-size:16px}}@media (max-width:420px){.wordmark__mark,.menu-button{display:none}.hero-copy h1{font-size:39px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto!important}:not(.refill-world--motion-full):not(.refill-world--motion-full *),:not(.refill-world--motion-full):not(.refill-world--motion-full *):before,:not(.refill-world--motion-full):not(.refill-world--motion-full *):after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.sr-only{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}.spin{animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.game-hero{color:var(--ink);background:#e8f8ff}.hero-copy{color:var(--deep-water)}.hero-copy h1 em{color:#087fa6}.hero-copy>p:last-child{color:#3b6575}.eyebrow{color:#066a89}.refill-world{isolation:isolate;background-color:#43bfe5;background-image:linear-gradient(#1e88cc08,#00639f14);background-position:50%;background-size:cover;margin:0 auto;position:relative;overflow:hidden}.refill-world:after{content:"";z-index:-1;pointer-events:none;position:absolute;inset:auto 0 0}.machine-state{color:#3d6677;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:10px;min-height:330px;display:flex}.machine-state>svg{color:#168db2;width:36px;height:36px}.machine-state strong{color:#163a55;font:700 22px/1.2 var(--font-display), sans-serif}.machine-state button{color:#17324e;cursor:pointer;background:#ffe071;border:2px solid #153d70;border-radius:11px;min-height:44px;padding:0 16px;font-weight:700}.answer{cursor:pointer;text-align:left;align-items:center;display:grid}.answer__key{font:800 13px/1 var(--font-mono), monospace;place-items:center;display:grid}.answer__status{width:21px;height:21px}.read-aloud{align-items:center;gap:12px;display:flex}.read-aloud__button{color:#fff;cursor:pointer;white-space:nowrap;background:#095f87;justify-content:center;align-items:center;gap:8px;padding:0 14px;font-weight:800;display:inline-flex}.read-aloud__button svg{flex:none;width:20px;height:20px}.read-aloud__button[aria-pressed=true]{background:#0b6848}.read-aloud__button[aria-pressed=true] svg{fill:currentColor}.read-aloud__button:disabled{color:#435a64;cursor:not-allowed;background:#e9f0f2}.read-aloud__help{color:#4d6873;line-height:1.35}.submit-state{color:#0d7794;align-items:center;gap:8px;font-weight:700;display:flex}.cup-carriage{z-index:3;transform-origin:67% 66%;will-change:transform;width:196px;height:196px;transition:transform .32s cubic-bezier(.2,.8,.25,1);position:absolute;bottom:24px;left:50%;transform:translate(-50%)}.cup-sprite{filter:drop-shadow(0 9px #0d59875c)drop-shadow(0 14px 18px #03548138);width:100%;height:100%;transition:filter .25s,transform .25s}.cup-readout{z-index:5;color:#0f5682;font-family:var(--font-mono), monospace;text-shadow:0 1px #fff;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#ffffffb8;border-radius:9px;align-items:baseline;gap:3px;padding:3px 7px;display:flex;position:absolute;top:79px;left:50%;transform:translate(-50%)}.cup-readout strong{color:#083e6d;font-size:31px}.cup-readout span{font-size:13px;font-weight:800}.lamp-bank{z-index:4;gap:8px;display:flex;position:absolute;bottom:6px;left:50%;transform:translate(-50%)}.lamp-bank i{background:#d8ecf1;border:3px solid #134272;border-radius:50%;width:18px;height:18px}.lamp-bank i.is-on{background:#ffd34f;box-shadow:0 0 0 3px #ffffffb8}.drop-stream{z-index:4;pointer-events:none;width:114px;height:136px;position:absolute;top:-50px;left:50%;transform:translate(-50%)}.drop-cluster-sprite{width:100%;height:100%;animation:.54s cubic-bezier(.25,.8,.3,1) both worldDropCluster;position:absolute;inset:0}.drop-stream i{background:#39dbee;border:2px solid #087eb7;border-radius:70% 45% 65% 50%;width:9px;height:13px;animation:.54s ease-in infinite worldDropParticle;position:absolute;top:18px;left:50%;box-shadow:inset 2px 2px #ffffffd1}.drop-stream i:nth-of-type(2){margin-left:-35px;animation-delay:80ms}.drop-stream i:nth-of-type(3){margin-left:27px;animation-delay:.16s}.drop-stream i:nth-of-type(4){margin-left:-17px;animation-delay:.25s}.drop-stream i:nth-of-type(5){margin-left:14px;animation-delay:.34s}@keyframes worldDropCluster{0%{opacity:0;transform:translateY(-18px)scale(.82)}20%{opacity:1}to{opacity:.2;transform:translateY(73px)scale(.96)}}@keyframes worldDropParticle{0%{opacity:0;transform:translateY(-12px)rotate(45deg)scale(.65)}22%{opacity:1}to{opacity:.12;transform:translateY(106px)rotate(45deg)scale(1)}}.pour-stream{z-index:2;transform-origin:top;opacity:0;background:linear-gradient(90deg,#42dbef,#b2fff4 45%,#18add2);border:2px solid #0c7bb440;border-radius:20px;width:25px;height:0;transition:height .3s,opacity .15s;position:absolute;bottom:-123px;left:64%;transform:rotate(-25deg);box-shadow:0 0 18px #4ee6f459}.refill-world--cup-filling .cup-sprite{animation:.28s cubic-bezier(.2,1.65,.4,1) cupFillPop}.refill-world--cup-full .cup-sprite{filter:drop-shadow(0 9px #0d59875c)drop-shadow(0 0 18px #ffde5bd1);animation:.18s cubic-bezier(.2,1.55,.4,1) cupFullBounce}.refill-world--cup-pouring .cup-carriage,.refill-world--earth-reacting .cup-carriage{transform:translate(-50%)rotate(35deg)}.refill-world--cup-pouring .pour-stream,.refill-world--earth-reacting .pour-stream{opacity:1;height:155px}@keyframes cupFillPop{0%{transform:scale(.96)}58%{transform:scale(1.045)}to{transform:scale(1)}}@keyframes cupFullBounce{0%{transform:translateY(0)scale(1)}48%{transform:translateY(-7px)scale(1.06)}to{transform:translateY(0)scale(1)}}.earth-sprite,.earth-recovery-sprite{filter:drop-shadow(0 9px #174a83)drop-shadow(0 17px 24px #07417647);forced-color-adjust:none;width:220px;height:220px;transition:filter .32s,transform .38s cubic-bezier(.2,1.35,.4,1);display:block}.earth-window--0 .earth-sprite{filter:saturate(.82)drop-shadow(0 9px #174a83)drop-shadow(0 17px 24px #07417647)}.refill-world--earth-reacting .earth-sprite,.refill-world--earth-reacting .earth-recovery-sprite{filter:saturate(1.18)brightness(1.05)drop-shadow(0 9px #174a83)drop-shadow(0 0 24px #5cf2b4b8);animation:.18s cubic-bezier(.2,1.45,.35,1) earthBloom}@keyframes earthBloom{0%{transform:scale(.93)}55%{transform:scale(1.1)}to{transform:scale(1)}}.refill-world--reduced-motion,.refill-world--reduced-motion *,.refill-world--reduced-motion :before,.refill-world--reduced-motion :after{transition-duration:.01ms!important;animation:none!important}.game-footer-bar{justify-content:flex-end;align-items:center;gap:8px;margin-top:13px;display:flex}.game-footer-bar button,.game-footer-bar a{color:#174263;cursor:pointer;background:#ffffffe6;border:2px solid #113d68bd;border-radius:10px;align-items:center;gap:6px;min-height:38px;padding:0 11px;font-size:12px;font-weight:700;text-decoration:none;display:flex}.game-footer-bar svg{width:15px}@media (max-width:760px){.game-hero{padding-inline:10px}}.refill-world{background-position:50% 38%;border:1px solid #0c4c7742;border-radius:24px;max-width:980px;min-height:0;padding:12px 18px 16px;box-shadow:0 22px 54px #0e4c7033}.refill-world:after{background:linear-gradient(#0000,#045b811c);height:46%}.refill-world--incorrect-feedback{animation:none}.game-toolbar{z-index:20;justify-content:space-between;align-items:center;gap:12px;min-height:42px;display:flex;position:relative}.lesson-picker{position:relative}.lesson-picker>summary{color:#123f5e;cursor:pointer;background:#ffffffeb;border:1px solid #11446638;border-radius:12px;align-items:center;gap:9px;min-height:40px;padding:0 12px;font-size:13px;font-weight:800;list-style:none;display:flex;box-shadow:0 3px 10px #0a416014}.lesson-picker>summary::-webkit-details-marker{display:none}.lesson-picker>summary:after{content:"▾";color:#167ba0;font-size:12px}.lesson-picker[open]>summary:after{transform:rotate(180deg)}.lesson-picker>summary span{color:#417082;border-left:1px solid #cfe0e6;padding-left:9px;font-size:11px;font-weight:700}.lesson-picker__panel{background:#fff;border:1px solid #b9d3dc;border-radius:14px;grid-template-columns:140px minmax(170px,1fr) minmax(230px,1.5fr) auto;align-items:end;gap:10px;width:min(820px,100vw - 64px);padding:14px;display:grid;position:absolute;top:47px;left:0;box-shadow:0 20px 52px #08304833}.lesson-picker__panel label{color:#496c79;font:750 10px/1.2 var(--font-mono), monospace;letter-spacing:.06em;text-transform:uppercase;gap:5px;display:grid}.lesson-picker__panel select,.lesson-picker__locked{color:#123b59;width:100%;min-height:42px;font:700 13px/1.2 var(--font-body), sans-serif;background:#fff;border:1px solid #abc9d5;border-radius:10px;padding:0 32px 0 10px}.lesson-picker__locked{color:#50666f;background:#edf4f6;align-items:center;padding-right:10px;display:flex}.lesson-picker__panel button{color:#132e4a;cursor:pointer;white-space:nowrap;background:#ffe071;border:1px solid #194a6b;border-radius:10px;justify-content:center;align-items:center;gap:6px;min-height:42px;padding:0 12px;font-weight:800;display:flex}.lesson-picker__panel button svg{width:15px}.lesson-picker__panel :disabled{cursor:not-allowed;opacity:.6}.game-mode-note{color:#fff;font:750 10px/1 var(--font-mono), monospace;letter-spacing:.05em;text-transform:uppercase;background:#08486bb8;border-radius:999px;padding:6px 9px}.flashcard-stage{perspective:1000px;place-items:start center;min-height:390px;display:grid}.refill-world .quiz-card{transform-origin:50%;background:#fff;border:1px solid #0f415f2e;border-radius:18px;width:min(620px,100%);min-height:0;margin:16px auto 0;padding:25px 26px 20px;animation:.26s cubic-bezier(.2,.82,.26,1) both flashcardIn;box-shadow:0 7px #0d577c38,0 22px 44px #083b582b}.refill-world .quiz-card--leaving{animation:.22s cubic-bezier(.58,.08,.8,.45) both flashcardOut!important}.refill-world--correct-feedback .quiz-card{animation:.26s cubic-bezier(.2,.82,.26,1) both flashcardIn}@keyframes flashcardIn{0%{opacity:0;transform:translate(42px)rotateY(-2deg)}to{opacity:1;transform:translate(0)rotateY(0)}}@keyframes flashcardOut{0%{opacity:1;transform:translate(0)rotateY(0)}to{opacity:0;transform:translate(-42px)rotateY(2deg)}}.refill-world .monitor__meta{color:#247791;font:750 10px/1.3 var(--font-mono), monospace;letter-spacing:.04em;text-transform:uppercase;justify-content:space-between;gap:14px;display:flex}.refill-world .monitor__meta span:last-child{text-align:right;text-overflow:ellipsis;white-space:nowrap;max-width:55%;overflow:hidden}.refill-world .quiz-card h2{color:#0b2840;max-width:none;font:650 clamp(23px, 2.5vw, 32px)/1.16 var(--font-display), sans-serif;letter-spacing:-.025em;margin:14px 0 18px}.refill-world .quiz-card h2:focus{outline-offset:5px;border-radius:4px;outline:3px solid #0b84a7}.refill-world .answers{border:0;grid-template-columns:1fr;gap:9px;margin:0;padding:0;display:grid}.refill-world .answer{color:#17384f;background:#fff;border:2px solid #83c5df;border-bottom-width:3px;border-radius:10px;grid-template-columns:34px 1fr 23px;gap:11px;min-height:56px;padding:8px 11px;font-size:15px;font-weight:750;transition:transform .14s,background .14s,border-color .14s,color .14s}:is(.refill-world .answer:hover:not(:disabled),.refill-world .answer:focus-visible:not(:disabled)){background:#eaf8fd;border-color:#147fab;transform:translateY(-1px)}.refill-world .answer:disabled{cursor:default;opacity:1}.refill-world .answer:disabled:not(.answer--correct):not(.answer--wrong){color:#5b7078;background:#f2f6f7;border-color:#c5d8df}.refill-world .answer__key{color:#12658b;background:#dff4fb;border:0;border-radius:8px;width:32px;height:32px}.refill-world .answer.answer--correct,.refill-world .answer.answer--correct:disabled{color:#fff;background:#168c4a;border-color:#0a693b;box-shadow:0 0 0 3px #168c4a26}.refill-world .answer.answer--wrong,.refill-world .answer.answer--wrong:disabled{color:#fff;background:#d74752;border-color:#922f3a;box-shadow:0 0 0 3px #d7475224}.refill-world .answer.answer--correct .answer__key,.refill-world .answer.answer--wrong .answer__key{background:#ffffffeb;border:0}.refill-world .answer.answer--correct .answer__key{color:#09633a}.refill-world .answer.answer--wrong .answer__key{color:#8c2631}.refill-world .read-aloud{background:#f6fafb;border:1px solid #d3e2e7;border-radius:10px;justify-content:space-between;margin:-4px 0 14px;padding:7px}.refill-world .read-aloud__button{min-height:38px;box-shadow:none;border:0;border-radius:8px;font-size:13px}.refill-world .read-aloud__help{font-size:11px;font-weight:650}.submit-state{justify-content:center;min-height:24px;margin:8px 0 -6px;font-size:12px}.submit-state svg{width:15px;height:15px}.answer-error{color:#742c35;background:#fff0f0;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;margin-top:10px;padding:9px 10px;font-size:12px;font-weight:700;display:flex}.answer-error button{color:#742c35;cursor:pointer;background:#fff;border:1px solid #8e313b;border-radius:8px;align-items:center;gap:5px;min-height:36px;padding:0 10px;font-weight:800;display:flex}.answer-error svg{width:14px}.question-source{color:#64808a;align-items:center;gap:9px;margin-top:13px;font-size:10px;line-height:1.3;display:flex}.question-source span{text-overflow:ellipsis;white-space:nowrap;margin-right:auto;overflow:hidden}.question-source a{color:#176f91;text-underline-offset:2px;flex:none;font-weight:750}.refill-world .machine-state{min-height:310px}.game-progress{text-align:center;justify-items:center;gap:2px;width:min(340px,100%);margin:18px auto 0;display:grid}.progress-scene{width:280px;height:214px;position:relative}.progress-scene .earth-window{background:0 0;border:0;place-items:center;width:190px;height:190px;min-height:0;margin:0;display:grid;position:absolute;bottom:0;left:50%;overflow:visible;transform:translate(-50%)}.progress-scene .earth-sprite,.progress-scene .earth-recovery-sprite{filter:drop-shadow(0 7px #174a83)drop-shadow(0 14px 20px #0741763d);width:190px;height:190px}.progress-scene .cup-station{z-index:4;width:168px;height:168px;box-shadow:none;background:0 0;border:0;border-radius:0;position:absolute;top:-20px;left:50%;overflow:visible;transform:translate(-50%)}.progress-scene .cup-station:before{display:none}.progress-scene .cup-carriage{width:168px;height:168px;bottom:0;left:50%}.progress-scene .cup-readout{top:66px}.progress-scene .cup-readout strong{font-size:27px}.progress-scene .lamp-bank{gap:6px;bottom:2px}.progress-scene .lamp-bank i{border-width:2px;width:14px;height:14px}.progress-scene .drop-stream{height:126px;top:-58px}.progress-scene .pour-stream{bottom:1px;left:63%}.refill-world--cup-pouring .progress-scene .pour-stream,.refill-world--earth-reacting .progress-scene .pour-stream{height:112px}.lesson-readout{z-index:6;color:#174562;background:#fffffff0;border-radius:14px;justify-items:center;gap:4px;width:100%;margin-top:-28px;padding:9px 14px;display:grid;position:relative;box-shadow:0 8px 20px #073f5e1f}.lesson-readout>span{color:#3f7180;max-width:100%;font:750 9px/1.2 var(--font-mono), monospace;letter-spacing:.045em;text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap;overflow:hidden}.lesson-readout strong{color:#0b4e76;align-items:center;gap:6px;font-size:17px;display:flex}.lesson-readout strong svg{color:#0a9fc4;width:18px}.lesson-readout small{color:#607983;font-size:10px;font-weight:700}.refill-world .game-footer-bar{justify-content:center;gap:6px;margin-top:9px}.refill-world .game-footer-bar button,.refill-world .game-footer-bar a{min-height:34px;box-shadow:none;color:#285b70;background:#ffffffc7;border:0;border-radius:8px;padding:0 9px;font-size:10px}.refill-world .game-footer-bar button:disabled{opacity:.7;cursor:not-allowed}.refill-world .game-footer-bar svg{width:14px}@media (max-width:760px){.refill-world{background-position:top;border-radius:18px;padding:8px 9px 12px}.game-toolbar{min-height:38px}.lesson-picker>summary{max-width:270px;min-height:36px;font-size:11px}.lesson-picker>summary span{font-size:9px}.game-mode-note{display:none}.lesson-picker__panel{grid-template-columns:1fr;align-items:stretch;gap:9px;width:min(360px,100vw - 40px)}.flashcard-stage{min-height:0}.refill-world .quiz-card{border-radius:14px;margin-top:9px;padding:18px 14px 15px}.refill-world .monitor__meta span:last-child{display:none}.refill-world .quiz-card h2{margin:11px 0 14px;font-size:22px}.refill-world .answer{grid-template-columns:32px 1fr 21px;min-height:53px;font-size:14px}.refill-world .read-aloud{align-items:stretch}.refill-world .read-aloud__button{width:auto}.refill-world .read-aloud__help{align-self:center;font-size:10px}.question-source{gap:7px;font-size:9px}.game-progress{width:min(300px,100%);margin-top:16px}.progress-scene{width:240px;height:182px}.progress-scene .earth-window,.progress-scene .earth-sprite,.progress-scene .earth-recovery-sprite{width:156px;height:156px}.progress-scene .cup-station,.progress-scene .cup-carriage{width:145px;height:145px}.progress-scene .cup-station{top:-18px}.progress-scene .cup-readout{top:57px}.progress-scene .cup-readout strong{font-size:23px}.lesson-readout{margin-top:-25px}.refill-world .game-footer-bar{flex-wrap:wrap}.refill-world .game-footer-bar button,.refill-world .game-footer-bar a{flex:0 auto}}@media (forced-colors:active){.refill-world,.refill-world .quiz-card,.refill-world .answer,.lesson-readout{border:2px solid canvastext}.refill-world .answer--correct,.refill-world .answer--wrong{outline:3px solid canvastext}}.section-kicker{color:#066a89;font:800 11px/1.3 var(--font-mono), monospace;letter-spacing:.12em;text-transform:uppercase;margin:0 0 12px}.button-primary,.button-secondary{cursor:pointer;border:2px solid #0b3558;border-radius:12px;justify-content:center;align-items:center;gap:8px;min-height:48px;padding:0 18px;font-weight:800;text-decoration:none;transition:transform .16s,box-shadow .16s,background .16s;display:inline-flex}.button-primary{color:#092c49;background:#ffd166;box-shadow:3px 3px #0b3558}.button-secondary{color:#17475f;background:#fff;box-shadow:3px 3px #bad4d8}.button-primary:hover,.button-secondary:hover{transform:translate(-1px,-1px);box-shadow:5px 5px #0b3558}.button-primary:active,.button-secondary:active{transform:translate(2px,2px);box-shadow:1px 1px #0b3558}:is(.button-primary:focus-visible,.button-secondary:focus-visible){outline-offset:3px;outline:4px solid #48dcd2}.content-page{color:#102a3a;background:#f7fbf8}.content-hero{padding:50px max(24px, calc((100vw - var(--page-max)) /2)) 66px;background:#e9f4f1;border-bottom:1px solid #bad7d9;position:relative;overflow:hidden}.content-hero:after{content:"";background:#48dcd2;height:7px;position:absolute;bottom:0;left:0;right:0}.content-hero__inner{max-width:var(--page-max);margin:auto;position:relative}.content-hero__inner--media{grid-template-columns:minmax(0,.9fr) minmax(420px,1.1fr);align-items:center;gap:30px 62px;display:grid}.content-hero nav{z-index:2;color:#46636d;align-items:center;gap:8px;margin-bottom:46px;font-size:13px;font-weight:700;display:flex;position:relative}.content-hero__inner--media>nav{grid-column:1/-1;margin-bottom:8px}.content-hero nav a{color:#0a7491}.content-hero__copy{z-index:2;max-width:820px;position:relative}.content-hero__copy .eyebrow,.play-page .eyebrow{color:#066a89;font:800 11px/1.2 var(--font-mono), monospace;letter-spacing:.13em;text-transform:uppercase;margin-bottom:14px;display:block}.content-hero h1{color:#082f4c;max-width:900px;font:650 clamp(44px, 6vw, 82px)/.94 var(--font-display), sans-serif;letter-spacing:-.06em;text-wrap:balance;margin:0}.content-hero__copy>p{color:#3f6472;text-wrap:pretty;max-width:780px;margin:24px 0 0;font-size:clamp(18px,2vw,22px);line-height:1.48}.content-hero__actions{flex-wrap:wrap;gap:12px;margin-top:30px;display:flex}.content-note{z-index:3;color:#654f18;background:#fff7d9;border:1px solid #d4b45d;border-radius:10px;align-items:flex-start;gap:9px;max-width:820px;margin-top:34px;padding:13px 15px;font-size:13px;line-height:1.45;display:flex;position:relative}.content-hero__inner--media>.content-note{grid-column:1/-1;max-width:none;margin-top:2px}.content-note svg{flex:none;margin-top:1px}.editorial-figure{color:#163a4a;background:#fff;border:1px solid #a9c5c4;min-width:0;margin:0;overflow:hidden}.editorial-figure--hero{align-self:center;box-shadow:0 22px 55px #082f4c21}.editorial-figure--hero.editorial-figure--portrait{justify-self:end;width:min(100%,500px)}.editorial-figure__image{background:#174c62;position:relative;overflow:hidden}.editorial-figure--hero .editorial-figure__image{aspect-ratio:16/10;min-height:360px}.editorial-figure--hero.editorial-figure--portrait .editorial-figure__image{aspect-ratio:4/5}.editorial-figure--feature{margin:0 0 78px}.editorial-figure--feature .editorial-figure__image{aspect-ratio:16/9}.editorial-figure__image img{object-fit:cover;width:100%;height:100%;display:block}.responsive-editorial-picture{width:100%;height:100%;display:block}.editorial-figure__location{color:#fff;max-width:calc(100% - 28px);font:800 10px/1.2 var(--font-mono), monospace;letter-spacing:.045em;text-transform:uppercase;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#052334d6;border:1px solid #ffffff80;padding:7px 9px;position:absolute;bottom:14px;left:14px}.editorial-figure figcaption{border-top:1px solid #c5d7d5;padding:17px 18px 18px}.editorial-figure__caption-row{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.editorial-figure__caption{max-width:66%;font-size:14px;font-weight:800;line-height:1.42}.editorial-figure__credit{color:#647c84;text-align:right;flex:none;font-size:11px;line-height:1.45}.editorial-figure__credit a{color:#08748e;text-underline-offset:3px;align-items:center;gap:3px;font-weight:800;display:inline-flex}.editorial-figure__boundary{color:#647a81;border-top:1px solid #d5e2e0;margin-top:11px;padding-top:10px;font-size:11px;line-height:1.45;display:block}.content-stat-band{padding:0 max(24px, calc((100vw - var(--page-max)) /2));color:#fff;background:#082f4c;grid-template-columns:repeat(3,1fr);display:grid}.content-stat-band>div{border-right:1px solid #2f5c72;flex-direction:column;justify-content:center;min-height:112px;padding:20px 32px;display:flex}.content-stat-band>div:last-child{border:0}.content-stat-band strong{color:#70e7dc;font:700 clamp(25px, 3vw, 39px)/1 var(--font-mono), monospace}.content-stat-band span{color:#c6dce0;margin-top:7px;font-size:13px;font-weight:700}.content-layout{max-width:var(--page-max);grid-template-columns:210px minmax(0,900px);gap:64px;margin:0 auto;padding:82px 24px 110px;display:grid}.content-toc{border-left:2px solid #c7dddc;align-self:start;gap:2px;padding-left:15px;display:grid;position:sticky;top:112px}.content-toc>span{color:#6c858d;font:800 10px/1.2 var(--font-mono), monospace;letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}.content-toc a{color:#41606d;border-radius:7px;padding:7px 9px;font-size:12px;font-weight:700;line-height:1.25;text-decoration:none}.content-toc a:hover{color:#087c99;background:#e2f2ef}.content-main{min-width:0}.content-section{border-bottom:1px solid #bed4d3;margin-bottom:70px;padding:0 0 70px;scroll-margin-top:120px;position:relative}.content-section:last-of-type{border-bottom:0}.content-section:before{content:"";background:#48dcd2;border-radius:8px;width:7px;height:42px;position:absolute;top:4px;left:-26px}.content-section--1:before{background:#ffd166}.content-section--2:before{background:#42bf63}.content-section h2,.source-ledger h2,.content-replay h2{color:#0a3048;font:650 clamp(30px, 4vw, 48px)/1.02 var(--font-display), sans-serif;letter-spacing:-.045em;text-wrap:balance;margin:0 0 18px}.content-section>p,.source-ledger>p,.content-replay p{color:#486773;max-width:750px;margin:0 0 17px;font-size:18px;line-height:1.6}.content-section blockquote{color:#193f52;background:#e2f5f1;border:0;border-left:5px solid #0e8fb6;margin:28px 0 0;padding:19px 22px;font-size:17px;font-weight:700;line-height:1.5}.content-bullets{gap:11px;margin:25px 0 0;padding:0;list-style:none;display:grid}.content-bullets li{color:#3f626e;align-items:flex-start;gap:10px;font-weight:700;line-height:1.45;display:flex}.content-bullets svg{color:#138f68;flex:none;margin-top:2px}.ledger-preview{background:#fff;border:2px solid #0b3558;border-radius:16px;grid-template-columns:repeat(5,1fr);margin-top:32px;display:grid;overflow:hidden;box-shadow:7px 7px #0b3558}.ledger-preview__status{background:#fff2bf;border-bottom:1px solid #d9c169;grid-column:1/-1;align-items:center;gap:12px;padding:18px 20px;display:flex}.ledger-preview__status div{gap:2px;display:grid}.ledger-preview__status span{color:#6b571e;font-size:13px}.ledger-preview>div:not(.ledger-preview__status){border-right:1px solid #d3e1df;gap:7px;padding:18px;display:grid}.ledger-preview>div:nth-of-type(6){border:0}.ledger-preview>div>span{color:#637d86;text-transform:uppercase;font-size:11px;font-weight:800}.ledger-preview>div>strong{color:#123f58;font:700 20px/1 var(--font-mono), monospace}.ledger-preview>div>small{color:#8b9da2}.ledger-preview>p{color:#59727b;font-size:11px;font-family:var(--font-mono), monospace;background:#eef7f5;grid-column:1/-1;align-items:center;gap:7px;margin:0;padding:13px 18px;display:flex}.policy-status,.empty-proof,.form-success{background:#e6f5f2;border:2px solid #0b3558;border-radius:15px;align-items:flex-start;gap:14px;margin-top:28px;padding:22px;display:flex;box-shadow:5px 5px #0b3558}.policy-status svg,.empty-proof svg,.form-success>svg{color:#087e8e;flex:none}.policy-status p,.empty-proof p,.form-success p{color:#486873;margin:6px 0 0;line-height:1.5}.empty-proof{background:#fff4cc}.source-ledger{background:#e6f4f1;border:1px solid #aac9ca;margin:10px 0 74px;padding:38px;scroll-margin-top:120px}.source-ledger>div{color:#0b7790;font:800 10px/1 var(--font-mono), monospace;letter-spacing:.1em;text-transform:uppercase;align-items:center;gap:9px;margin-bottom:18px;display:flex}.source-ledger h2{font-size:35px}.source-ledger>p{font-size:15px}.source-ledger ol{gap:0;margin:28px 0 0;padding-left:24px;display:grid}.source-ledger li{color:#42636f;border-top:1px solid #b8d4d2;padding:16px}.source-ledger li a{color:#096f8b;align-items:center;gap:8px;text-decoration:none;display:flex}.source-ledger li a:hover{text-decoration:underline}.source-ledger li span{margin-top:5px;font-size:13px;display:block}.content-replay{color:#fff;background:#082f4c;border-radius:20px;justify-content:space-between;align-items:center;gap:32px;padding:40px;display:flex}.content-replay h2{color:#fff;max-width:570px;font-size:38px}.content-replay p{color:#bed6dc;margin:0;font-size:15px}.content-replay .eyebrow{color:#69e1d6;font:800 10px/1 var(--font-mono), monospace;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px;display:block}.faq-list{gap:10px;margin-bottom:60px;display:grid}.faq-list details{background:#fff;border:1px solid #bcd4d4;border-radius:12px;scroll-margin-top:120px;overflow:hidden}.faq-list summary{color:#153f52;min-height:68px;font:700 19px/1.3 var(--font-display), sans-serif;cursor:pointer;align-items:center;padding:16px 54px 16px 20px;display:flex;position:relative}.faq-list summary:after{content:"+";color:#0b829e;font:700 26px/1 var(--font-mono), monospace;position:absolute;right:20px}.faq-list details[open] summary:after{content:"–"}.faq-list details>div{color:#4a6873;padding:0 20px 22px;line-height:1.58}.faq-list details p{margin:0}.archive-tool{margin-top:30px}.archive-filters{background:#edf7f5;border:1px solid #bad2d2;border-radius:15px;grid-template-columns:1.5fr .8fr 1fr;gap:12px;padding:18px;display:grid}.archive-filters>label{color:#45636e;flex-wrap:wrap;align-items:center;gap:6px;font-size:12px;font-weight:800;display:flex}.archive-filters>label:first-child{grid-column:1/-1}.archive-filters input,.archive-filters select,.teacher-form select,.contact-form input,.contact-form select,.contact-form textarea{color:#163d50;width:100%;min-height:46px;font:inherit;background:#fff;border:2px solid #a8c6c8;border-radius:9px;padding:10px 12px}.archive-filters input:focus,.archive-filters select:focus,.teacher-form select:focus,.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline-offset:2px;border-color:#0d7992;outline:3px solid #48dcd2}.result-count{color:#667e86;font:700 11px/1.2 var(--font-mono), monospace;margin:18px 0 10px}.archive-results{gap:9px;display:grid}.archive-entry{background:#fff;border:1px solid #bfd5d4;border-radius:11px;overflow:hidden}.archive-entry summary{cursor:pointer;gap:7px;padding:16px 45px 16px 18px;display:grid;position:relative}.archive-entry summary:after{content:"+";color:#0c819d;font:700 23px/1 var(--font-mono), monospace;position:absolute;top:22px;right:18px}.archive-entry[open] summary:after{content:"–"}.archive-entry summary span,.archive-entry summary small{color:#6b838a;font:800 9px/1.2 var(--font-mono), monospace;letter-spacing:.06em;text-transform:uppercase}.archive-entry summary strong{color:#173f52;font-size:16px;line-height:1.35}.archive-entry>div{color:#45636e;background:#f5fbfa;border-top:1px solid #d6e3e2;padding:18px;line-height:1.5}.archive-entry>div p{margin:0 0 12px}.archive-entry>div a{color:#087893;font-weight:700}.answer-reveal{color:#185e45;align-items:center;gap:7px;display:flex}.draft-warning{color:#725511;background:#fff0bd;border-radius:7px;padding:6px 8px;font-size:11px;font-weight:800;display:inline-block}.empty-panel{color:#496973;background:#f0f7f5;border:1px dashed #8dafb2;border-radius:12px;padding:26px}.empty-panel p{margin:5px 0 0}.challenge-tool{margin-top:30px}.sort-list{gap:9px;margin:0;padding:0;list-style:none;display:grid}.sort-list li{color:#254c5b;background:#fff;border:2px solid #b5cccd;border-radius:12px;grid-template-columns:42px 1fr auto;align-items:center;gap:14px;min-height:68px;padding:10px 12px;font-weight:700;display:grid;box-shadow:0 3px #d4e6e4}.sort-number{color:#0a6d78;width:38px;height:38px;font-family:var(--font-mono), monospace;background:#d9f4ef;border-radius:50%;place-items:center;display:grid}.sort-list li>div{gap:5px;display:flex}.sort-list button{color:#184a60;cursor:pointer;background:#f5fbfa;border:1px solid #a8c4c5;border-radius:8px;place-items:center;width:40px;height:40px;display:grid}.sort-list button:disabled{opacity:.35;cursor:not-allowed}.challenge-actions{gap:11px;margin-top:18px;display:flex}.challenge-result{color:#466570;background:#e8f4f2;border-left:5px solid #0e8fb6;margin-top:18px;padding:16px;line-height:1.5}.challenge-result--correct{color:#225c45;background:#e4f7ee;border-color:#2bbf83}.challenge-result--try-again{color:#713c3f;background:#fff0ed;border-color:#ff6b6b}.teacher-preview{grid-template-columns:1.2fr .8fr;gap:20px;margin-top:30px;display:grid}.teacher-form,.class-code-card{background:#edf7f5;border:1px solid #b8d1d1;border-radius:16px;padding:22px}.teacher-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;display:grid}.teacher-form>label,.contact-form>label{color:#3e606c;gap:7px;font-size:12px;font-weight:800;display:grid}.teacher-form>label small{color:#52717b;font-size:10px;line-height:1.35}.teacher-form select:disabled{color:#123f55;opacity:1;background:#e4f4f2;border-color:#6eb3b5}.teacher-form fieldset{background:#fff;border:1px solid #b6cece;border-radius:10px;grid-column:1/-1;grid-template-columns:repeat(2,1fr);gap:8px 16px;padding:15px;display:grid}.teacher-form legend{color:#52717b;padding:0 7px;font-size:11px;font-weight:800}.teacher-form fieldset label{color:#41636e;align-items:center;gap:7px;font-size:12px;display:flex}.teacher-form>button{grid-column:1/-1;justify-self:start}.class-code-card{text-align:center;color:#fff;background:#082f4c;flex-direction:column;justify-content:center;align-items:center;display:flex}.class-code-card>span{color:#7ee7de;font:700 10px/1.3 var(--font-mono), monospace;text-transform:uppercase}.class-code-card>strong{color:#ffd166;font:700 32px/1 var(--font-mono), monospace;letter-spacing:.16em;margin:17px 0}.class-code-card button{color:#16445b;cursor:pointer;background:#fff;border:1px solid #8fc8ce;border-radius:8px;align-items:center;gap:7px;min-height:40px;padding:0 13px;font-weight:800;display:flex}.class-code-card p{color:#a9c8cf;margin:14px 0 0;font-size:11px;line-height:1.45}.contact-form{background:#edf7f5;border:1px solid #b7d0d0;border-radius:17px;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px;padding:25px;display:grid}.contact-form label:first-of-type,.contact-form label:nth-of-type(4),.contact-form .consent-line,.contact-form button{grid-column:1/-1}.contact-form textarea{resize:vertical}.contact-form .consent-line{grid-template-columns:auto 1fr;align-items:start;gap:9px;line-height:1.4;display:flex}.contact-form .consent-line input{width:20px;min-height:20px;margin:0}.contact-form button{justify-self:start}.form-success{align-items:center}.form-success button{margin-left:auto}.curriculum-matrix{background:#fff;border:1px solid #abc9ca;border-radius:14px;margin-top:30px;overflow:auto;box-shadow:5px 5px #d6e8e5}.matrix-head,.matrix-row{grid-template-columns:2.2fr repeat(4,1fr);align-items:stretch;min-width:760px;display:grid}.matrix-head{color:#fff;background:#082f4c;position:sticky;top:0}.matrix-head>*,.matrix-row>*{border-right:1px solid #c8dada;align-items:center;padding:12px;display:flex}.matrix-head>*{color:#d5e8eb;border-color:#315a6e;font-size:11px}.matrix-row>*{color:#4a6974;border-bottom:1px solid #d3e2e0;font-size:11px}.matrix-row:last-child>*{border-bottom:0}.matrix-row>span:first-child{color:#173f52;font-weight:800}.matrix-row>span:not(:first-child){color:#25604b;font-family:var(--font-mono), monospace;gap:5px}.matrix-row svg{color:#169a6c}.login-panel{grid-template-columns:1fr 1fr;gap:16px;margin-top:30px;display:grid}.login-panel>div{background:#fff;border:2px solid #0b3558;border-radius:17px;flex-direction:column;align-items:flex-start;min-height:270px;padding:30px;display:flex;box-shadow:5px 5px #0b3558}.login-panel>div:first-child{background:#e1f5f1}.login-panel span{color:#087e98;font:800 10px/1.2 var(--font-mono), monospace;text-transform:uppercase;letter-spacing:.08em}.login-panel h2{font:700 28px/1.05 var(--font-display), sans-serif;margin:16px 0 10px}.login-panel p{color:#506e78;flex:1;margin:0 0 22px;line-height:1.5}.dashboard-skeleton,.dashboard-grid{grid-template-columns:repeat(4,1fr);gap:10px;margin-top:30px;display:grid}.dashboard-skeleton span{background:linear-gradient(90deg,#e0edeb 25%,#eff7f5 50%,#e0edeb 75%) 0 0/200% 100%;border-radius:13px;height:110px;animation:1.2s infinite shimmer}.dashboard-grid>div:not(.dashboard-earth){background:#fff;border:1px solid #b8d0d0;border-radius:12px;flex-direction:column;padding:20px;display:flex}.dashboard-grid>div>strong{color:#0b7795;font:700 28px/1 var(--font-mono), monospace}.dashboard-grid>div>span{color:#627d86;text-transform:uppercase;margin-top:7px;font-size:11px;font-weight:800}.dashboard-earth{color:#fff;background:#082f4c;border-radius:12px;grid-column:1/-1;grid-template-columns:1fr auto;align-items:end;gap:8px;padding:18px 20px;display:grid}.dashboard-earth>div{background:#264f63;border-radius:10px;grid-column:1/-1;height:12px;overflow:hidden}.dashboard-earth i{background:linear-gradient(90deg,#47dcd1,#ffd166);border-radius:10px;height:100%;display:block}.dashboard-grid>p{color:#526b72;grid-column:1/-1;margin:0;font-size:12px;line-height:1.5}@keyframes shimmer{to{background-position:-200% 0}}.play-page{background:#e8f8ff;min-height:100vh}.play-page__intro{max-width:var(--page-max);justify-content:space-between;align-items:end;gap:40px;margin:auto;padding:58px 24px 32px;display:flex}.play-page__intro h1{color:#0a304b;max-width:790px;font:650 clamp(42px, 6vw, 76px)/.95 var(--font-display), sans-serif;letter-spacing:-.06em;margin:0}.play-page__intro p{color:#466975;max-width:720px;margin:18px 0 0;font-size:19px;line-height:1.5}.play-page__intro>a{flex:none}.play-safety-band{max-width:var(--page-max);color:#62521f;background:#fff4c9;border:1px solid #e1c466;border-radius:12px;align-items:center;gap:22px;margin:0 auto 14px;padding:13px 16px;font-size:12px;font-weight:700;display:flex}.play-safety-band span{align-items:center;gap:7px;display:flex}.play-safety-band a{color:#087897;margin-left:auto}.play-page #game{scroll-margin-top:90px}.natural-stop{max-width:var(--page-max);justify-content:space-between;align-items:end;gap:40px;margin:0 auto;padding:76px 24px 90px;display:flex}.natural-stop h2{color:#0a3048;font:650 clamp(34px, 4vw, 52px)/1 var(--font-display), sans-serif;letter-spacing:-.045em;margin:0}.natural-stop p{color:#4e6c77;max-width:660px;font-size:17px;line-height:1.55}.natural-stop>div:last-child{flex-wrap:wrap;gap:10px;display:flex}@media (max-width:1020px){.content-hero__inner--media{grid-template-columns:minmax(0,.95fr) minmax(360px,1.05fr);gap:26px 34px}.content-layout{grid-template-columns:1fr;padding-top:60px}.content-toc{background:#edf6f4;border:1px solid #c6d9d8;border-radius:12px;flex-wrap:wrap;gap:4px;padding:12px;display:flex;position:static}.content-toc>span{width:100%;margin:0 6px 4px}.ledger-preview{grid-template-columns:repeat(3,1fr)}.ledger-preview>div:nth-of-type(6){border-top:1px solid #d3e1df}.teacher-preview{grid-template-columns:1fr}.play-page__intro,.natural-stop{flex-direction:column;align-items:flex-start}}@media (max-width:900px){.content-hero__inner--media{grid-template-columns:1fr;gap:28px}.content-hero__inner--media>nav,.content-hero__inner--media>.content-note{grid-column:1}.content-hero__inner--media .content-hero__copy{max-width:760px}.editorial-figure--hero,.editorial-figure--hero.editorial-figure--portrait{justify-self:stretch;width:100%;max-width:none}.editorial-figure--hero .editorial-figure__image{aspect-ratio:16/9;min-height:0}.editorial-figure--hero.editorial-figure--portrait .editorial-figure__image{aspect-ratio:4/3}}@media (max-width:760px){.content-hero{padding:38px 20px 46px}.content-hero nav{margin-bottom:34px}.content-hero h1{font-size:44px}.content-hero__copy>p{font-size:18px}.content-hero__inner--media>nav{margin-bottom:2px}.content-hero__inner--media{gap:24px}.content-hero__actions{flex-direction:column;align-items:stretch}.content-hero__actions a{width:100%}.editorial-figure--hero .editorial-figure__image,.editorial-figure--feature .editorial-figure__image{aspect-ratio:4/3}.editorial-figure--hero.editorial-figure--portrait .editorial-figure__image{aspect-ratio:4/5}.editorial-figure--feature{margin-bottom:54px}.editorial-figure__caption-row{flex-direction:column;gap:8px}.editorial-figure__caption{max-width:none;font-size:13px}.editorial-figure__credit{text-align:left}.content-stat-band{grid-template-columns:1fr;padding:0 20px}.content-stat-band>div{border-bottom:1px solid #2f5c72;border-right:0;min-height:80px;padding:15px 0}.content-stat-band>div:last-child{border-bottom:0}.content-layout{gap:40px;padding:42px 20px 72px}.content-toc{flex-wrap:nowrap;overflow-x:auto}.content-toc>span{display:none}.content-toc a{white-space:nowrap;flex:none}.content-section{margin-bottom:48px;padding-bottom:48px}.content-section:before{width:5px;left:-12px}.content-section h2,.source-ledger h2{font-size:32px}.content-section>p{font-size:16px}.ledger-preview{grid-template-columns:1fr 1fr;box-shadow:4px 4px #0b3558}.ledger-preview__status,.ledger-preview>p{grid-column:1/-1}.ledger-preview>div:not(.ledger-preview__status){border-bottom:1px solid #d3e1df}.ledger-preview>div:nth-of-type(6){grid-column:1/-1}.source-ledger{margin-bottom:54px;padding:23px}.content-replay{flex-direction:column;align-items:flex-start;padding:27px}.content-replay h2{font-size:32px}.archive-filters{grid-template-columns:1fr}.archive-filters>label:first-child{grid-column:auto}.sort-list li{grid-template-columns:34px 1fr}.sort-list li>div{grid-column:2}.challenge-actions{flex-direction:column;align-items:stretch}.teacher-form{grid-template-columns:1fr}.teacher-form fieldset,.teacher-form>button{grid-column:auto}.teacher-form fieldset{grid-template-columns:1fr}.contact-form{grid-template-columns:1fr;padding:18px}.contact-form label:nth-of-type(n),.contact-form .consent-line,.contact-form button{grid-column:auto}.form-success{flex-direction:column;align-items:flex-start}.form-success button{margin-left:0}.login-panel,.dashboard-grid{grid-template-columns:1fr}.dashboard-earth,.dashboard-grid>p{grid-column:1}.play-page__intro{padding:42px 20px 25px}.play-page__intro h1{font-size:45px}.play-safety-band{flex-direction:column;align-items:flex-start;margin:0 10px 10px}.play-safety-band a{margin-left:0}.natural-stop{padding:55px 20px 70px}.natural-stop>div:last-child,.natural-stop a{width:100%}}@media (prefers-reduced-motion:reduce){.button-primary,.button-secondary{transition:none}.dashboard-skeleton span{animation:none}}.classroom-mode-banner{color:#16475a;background:#e1faf5;border:1px solid #79d6cc;border-radius:12px;justify-content:center;align-items:center;gap:9px;width:min(1280px,100% - 48px);margin:18px auto 0;padding:11px 16px;font-size:13px;display:flex}.teacher-signin{background:linear-gradient(150deg,#f2fbfa,#dff5f1);place-items:center;min-height:70svh;padding:80px 24px;display:grid}.teacher-signin>div{background:#fff;border:1px solid #bcded9;border-radius:28px;width:min(720px,100%);padding:clamp(30px,6vw,60px);box-shadow:0 28px 80px #0b35581f}.teacher-signin>div>svg{background:var(--deep-water);color:#fff;border-radius:15px;width:46px;height:46px;margin-bottom:22px;padding:11px}.teacher-signin h1{font:650 clamp(38px, 6vw, 64px)/.98 var(--font-display), sans-serif;letter-spacing:-.055em;color:var(--deep-water);margin:10px 0 16px}.teacher-signin p{color:#42616b;max-width:600px;margin:0;font-size:18px;line-height:1.62}.teacher-signin>div>div{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.teacher-dashboard{background:#f4fbfa}.teacher-dashboard__hero{padding:72px max(24px, calc((100vw - var(--page-max)) /2)) 58px;color:#fff;background:linear-gradient(145deg,#082338,#0b4e65);grid-template-columns:minmax(0,1fr) 360px;align-items:end;gap:50px;display:grid}.teacher-dashboard__hero h1{font:650 clamp(42px, 6vw, 72px)/.95 var(--font-display), sans-serif;letter-spacing:-.055em;margin:9px 0 14px}.teacher-dashboard__hero p{color:#c4e0e3;max-width:760px;margin:0;font-size:18px;line-height:1.6}.teacher-dashboard__guard{background:#0418265c;border:1px solid #8ee7db57;border-radius:18px;grid-template-columns:auto 1fr;gap:4px 12px;padding:20px;display:grid}.teacher-dashboard__guard svg{color:#81e5d9;grid-row:1/3;width:26px;height:26px}.teacher-dashboard__guard span{color:#aad0d4;font-size:12px;line-height:1.5}.teacher-builder,.teacher-classes{padding:72px max(24px, calc((100vw - var(--page-max)) /2))}.teacher-builder{background:#fff;grid-template-columns:minmax(260px,.7fr) minmax(0,1.3fr);align-items:start;gap:72px;display:grid}.teacher-builder h2,.teacher-classes h2{font:650 clamp(34px, 4.4vw, 56px)/.98 var(--font-display), sans-serif;letter-spacing:-.05em;color:var(--deep-water);margin:8px 0 14px}.teacher-builder>div>p{color:#526d76;font-size:16px;line-height:1.6}.teacher-builder form{background:#f5fbfa;border:1px solid #c5dedb;border-radius:22px;grid-template-columns:1fr 1fr;gap:17px;padding:26px;display:grid;box-shadow:0 18px 55px #0b355814}.teacher-builder form>label,.teacher-builder fieldset{color:#214958;gap:7px;margin:0;font-size:12px;font-weight:800;display:grid}.teacher-builder input,.teacher-builder select{width:100%;min-height:48px;color:var(--ink);font:700 14px var(--font-body), sans-serif;background:#fff;border:1px solid #a9c9c6;border-radius:10px;padding:0 13px}.teacher-builder fieldset{background:#fff;border:1px solid #c5dedb;border-radius:12px;grid-column:1/-1;padding:16px}.teacher-builder legend{padding:0 6px;font-weight:800}.teacher-builder legend small{color:#71878d;font-weight:400}.teacher-domain-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px 12px;display:grid}.teacher-domain-grid label,.teacher-toggle-row label{color:#3d606b;align-items:flex-start;gap:7px;font-size:11px;line-height:1.3;display:flex}.teacher-domain-grid input,.teacher-toggle-row input{width:16px;height:16px;min-height:0;accent-color:var(--current);flex:none;margin:0}.teacher-toggle-row{flex-wrap:wrap;align-items:center;gap:12px!important;display:flex!important}.teacher-toggle-row span{color:#6a8188;margin-left:auto;font-size:11px;font-weight:400}.teacher-builder .button-primary{grid-column:1/-1;width:max-content}.teacher-classes>header{justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px;display:flex}.teacher-classes>header>div:last-child{gap:9px;display:flex}.teacher-classes button svg,.teacher-classes a svg,.teacher-builder button svg{width:16px;height:16px}.teacher-error{color:#8f2f35;background:#fff2f1;border:1px solid #eea9a9;border-radius:10px;margin:0 0 18px;padding:13px 16px;font-weight:700}.teacher-loading,.teacher-empty{color:#547078;text-align:center;background:#fff;border:1px dashed #a8cbc6;border-radius:20px;place-items:center;gap:10px;min-height:240px;padding:32px;display:grid}.teacher-empty svg{width:42px;height:42px;color:var(--current)}.teacher-empty h3{font:650 28px var(--font-display), sans-serif;color:var(--deep-water);margin:4px 0 0}.teacher-empty p{max-width:520px;margin:0}.teacher-class-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.teacher-class-card{background:#fff;border:1px solid #bcd9d5;border-radius:20px;overflow:hidden;box-shadow:0 16px 48px #0b355814}.teacher-class-card--archived{opacity:.78}.teacher-class-card>header{border-bottom:1px solid #d6e7e5;grid-template-columns:1fr auto;align-items:center;gap:18px;padding:22px;display:grid}.teacher-class-card>header span{color:#15704f;font:800 9px var(--font-mono), monospace;text-transform:uppercase;background:#dff7ee;border-radius:999px;padding:5px 8px;display:inline-block}.teacher-class-card>header h3{font:650 27px/1 var(--font-display), sans-serif;letter-spacing:-.035em;color:var(--deep-water);margin:9px 0 4px}.teacher-class-card>header p{color:#647c84;margin:0;font-size:12px}.teacher-class-card>header svg[role=img],.teacher-class-card>header>svg{background:#fff;border:1px solid #c7deda;border-radius:10px;padding:5px}.teacher-code{color:#fff;background:#092d45;align-items:center;gap:12px;padding:16px 22px;display:flex}.teacher-code span{color:#9fc6cc;font-size:11px}.teacher-code strong{font:700 22px var(--font-mono), monospace;letter-spacing:.14em;margin-right:auto}.teacher-code__actions{gap:7px;display:flex}.teacher-code button{color:#fff;cursor:pointer;background:#164c64;border:1px solid #568293;border-radius:8px;align-items:center;gap:6px;padding:8px 10px;font-size:11px;font-weight:800;display:inline-flex}.teacher-code button:disabled{opacity:.58;cursor:wait}.teacher-code-confirmation{color:#235b46;background:#e3f7ed;border-bottom:1px solid #9ad3bc;align-items:flex-start;gap:10px;padding:13px 22px;font-size:12px;line-height:1.45;display:flex}.teacher-code-confirmation>svg{flex:none;width:18px;height:18px;margin-top:1px}.teacher-code-confirmation span{gap:2px;display:grid}.teacher-code-confirmation button{color:#23654c;text-underline-offset:3px;cursor:pointer;background:0 0;border:0;margin-left:auto;font-size:11px;font-weight:800;text-decoration:underline}.teacher-metrics{border-bottom:1px solid #d6e7e5;grid-template-columns:repeat(3,1fr);display:grid}.teacher-metrics span{color:#657b82;border-right:1px solid #d6e7e5;grid-template-columns:auto 1fr;align-items:center;gap:2px 7px;padding:17px;font-size:10px;display:grid}.teacher-metrics span:last-child{border:0}.teacher-metrics svg{color:var(--current);grid-row:1/3}.teacher-metrics strong{color:var(--deep-water);font-size:22px;display:block}.teacher-review{min-height:126px;padding:19px 22px}.teacher-review>strong{color:#183f50;font-size:12px}.teacher-review p{color:#697e85;margin:9px 0 0;font-size:12px}.teacher-review ul{margin:10px 0 0;padding:0;list-style:none}.teacher-review li{border-top:1px solid #e1ecea;justify-content:space-between;gap:12px;padding:6px 0;font-size:12px;font-weight:700;display:flex}.teacher-review li span{color:#6c8289;font-weight:400}.teacher-class-card>footer{background:#f7fbfa;border-top:1px solid #d6e7e5;flex-wrap:wrap;gap:8px;padding:15px 22px;display:flex}.teacher-class-card>footer a,.teacher-class-card>footer button{color:#245064;background:#fff;border:1px solid #afccc8;border-radius:8px;align-items:center;gap:6px;min-height:38px;padding:0 10px;font-size:11px;font-weight:800;text-decoration:none;display:inline-flex}.teacher-class-card>footer .danger-link{color:#9a353a;margin-left:auto}.question-report-form{background:#f4fbfa;border:1px solid #b8d8d4;border-radius:18px;grid-template-columns:1fr 1fr;gap:15px;margin-top:30px;padding:22px;display:grid}.question-report-form>div,.question-report-form label:first-of-type,.question-report-form label:last-of-type,.question-report-form .report-result{grid-column:1/-1}.question-report-form h3{font:650 28px var(--font-display), sans-serif;color:var(--deep-water);margin:7px 0}.question-report-form p{color:#587078;margin:0}.question-report-form label{color:#214958;gap:7px;font-size:12px;font-weight:800;display:grid}.question-report-form input,.question-report-form select,.question-report-form textarea{width:100%;color:var(--ink);font:inherit;background:#fff;border:1px solid #aacbc7;border-radius:9px;padding:11px 12px}.question-report-form button{width:max-content}.report-result{color:#176344;background:#e1f6ee;border-radius:8px;margin:0;padding:10px 12px;font-size:12px}.report-result--error{color:#913239;background:#fff0ef}@media (max-width:900px){.teacher-dashboard__hero,.teacher-builder{grid-template-columns:1fr;gap:30px}.teacher-dashboard__guard{max-width:520px}.teacher-domain-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.teacher-class-grid{grid-template-columns:1fr}}@media (max-width:620px){.teacher-dashboard__hero,.teacher-builder,.teacher-classes{padding:48px 18px}.teacher-builder form{grid-template-columns:1fr;padding:18px}.teacher-builder form>label,.teacher-builder fieldset,.teacher-builder .button-primary{grid-column:1}.teacher-domain-grid{grid-template-columns:1fr}.teacher-classes>header{flex-direction:column;align-items:flex-start}.teacher-class-card>header{grid-template-columns:1fr}.teacher-code{flex-wrap:wrap;align-items:flex-start}.teacher-code strong,.teacher-code__actions{width:100%}.teacher-code-confirmation{flex-wrap:wrap}.teacher-metrics{grid-template-columns:1fr}.teacher-metrics span{border-bottom:1px solid #d6e7e5;border-right:0}.question-report-form{grid-template-columns:1fr}.question-report-form>*{grid-column:1!important}}.access-boundary{background:radial-gradient(circle at 50% 20%,#dff7f3,#0000 45%),#edf7f5;place-items:center;min-height:100vh;padding:30px;display:grid}.access-boundary>div{text-align:center;background:#fff;border:2px solid #0b3558;border-radius:22px;max-width:670px;padding:48px;box-shadow:9px 9px #0b3558}.access-boundary__mark{color:#0b3558;background:#fff0bd;border-radius:20px;place-items:center;width:66px;height:66px;margin:0 auto 24px;display:grid}.access-boundary__mark svg{width:30px;height:30px}.access-boundary h1{color:#0b3049;font:650 clamp(38px, 6vw, 62px)/.96 var(--font-display), sans-serif;letter-spacing:-.05em;margin:12px 0 18px}.access-boundary>div>p:not(.admin-kicker){color:#506d78;margin:0 auto;font-size:17px;line-height:1.55}.access-boundary>div>div{flex-wrap:wrap;justify-content:center;gap:11px;margin-top:28px;display:flex}.admin-kicker{color:#087d97;font:800 10px/1.2 var(--font-mono), monospace;letter-spacing:.11em;text-transform:uppercase}.admin-shell{color:#12394c;background:#eff5f3;grid-template-columns:240px minmax(0,1fr);min-height:100vh;display:grid}.admin-nav{color:#fff;background:#071f31;flex-direction:column;height:100vh;padding:24px 17px;display:flex;position:sticky;top:0}.admin-brand{color:#fff;align-items:center;gap:10px;text-decoration:none;display:flex}.admin-brand>span{color:#08344f;width:35px;height:35px;font:800 11px/1 var(--font-mono), monospace;background:#4dd9d0;border-radius:10px;place-items:center;display:grid}.admin-brand strong{font:700 19px/1 var(--font-display), sans-serif}.admin-nav>p{color:#7fabb3;margin:10px 0 27px 45px;font-size:10px}.admin-nav nav{gap:3px;display:grid}.admin-nav nav a{color:#a9c7cc;border-radius:8px;padding:10px 12px;font-size:13px;font-weight:700;text-decoration:none;position:relative}.admin-nav nav a:hover,.admin-nav nav a[aria-current=page]{color:#fff;background:#123b51}.admin-nav nav a>span{background:#4dd9d0;border-radius:0 6px 6px 0;width:4px;height:24px;position:absolute;top:9px;left:-17px}.admin-exit{color:#8fb2b8;border-top:1px solid #244555;margin-top:auto;padding:12px;font-size:12px;text-decoration:none}.admin-main{min-width:0;padding:48px clamp(24px,5vw,72px) 90px}.admin-header{justify-content:space-between;align-items:flex-start;gap:30px;margin-bottom:28px;display:flex}.admin-header h1{color:#0a3048;font:650 clamp(36px, 5vw, 58px)/.96 var(--font-display), sans-serif;letter-spacing:-.05em;margin:10px 0 8px}.admin-header p{color:#58727c;max-width:720px;margin:0;line-height:1.5}.admin-security{color:#176247;white-space:nowrap;background:#dcf2ea;border:1px solid #9bc8bc;border-radius:9px;align-items:center;gap:7px;padding:10px 12px;font-size:11px;font-weight:800;display:flex}.admin-alert{color:#604f1c;background:#fff3bf;border:1px solid #e0bd55;border-radius:10px;align-items:flex-start;gap:11px;padding:15px 17px;display:flex}.admin-alert svg{flex:none;margin-top:2px}.admin-alert p{margin:4px 0 0;font-size:12px;line-height:1.45}.admin-metrics{background:#bfd0ce;border:1px solid #bfd0ce;grid-template-columns:repeat(4,1fr);gap:1px;margin:24px 0;display:grid}.admin-metrics>div{background:#fff;flex-direction:column;justify-content:center;min-height:118px;padding:18px;display:flex}.admin-metrics span{color:#637a82;text-transform:uppercase;font-size:10px;font-weight:800}.admin-metrics strong{color:#0b7795;font:700 25px/1 var(--font-mono), monospace;margin:9px 0 5px}.admin-metrics small{color:#8a9b9f}.admin-toolbar{gap:9px;margin-bottom:17px;display:flex}.admin-toolbar label{color:#668088;background:#fff;border:1px solid #aec3c3;border-radius:8px;flex:1;align-items:center;gap:8px;min-height:44px;padding:0 12px;display:flex}.admin-toolbar input{min-width:0;font:inherit;background:0 0;border:0;outline:0;flex:1}.admin-toolbar select,.admin-toolbar button{color:#315362;background:#fff;border:1px solid #aec3c3;border-radius:8px;min-height:44px;padding:0 13px;font-weight:700}.admin-toolbar button{color:#fff;background:#0d7692}.admin-toolbar button:disabled{opacity:.5;cursor:not-allowed}.admin-empty{color:#496873;background:#f7fbfa;border:1px dashed #8daeb0;border-radius:12px;align-items:flex-start;gap:13px;padding:28px;display:flex}.admin-empty svg{color:#0d7e97}.admin-empty p{margin:5px 0 0}.admin-table-wrap{background:#fff;border:1px solid #b8cbca;border-radius:10px;overflow:auto}.admin-table-wrap table{border-collapse:collapse;width:100%;min-width:870px}.admin-table-wrap th{color:#cfe3e5;text-align:left;text-transform:uppercase;letter-spacing:.06em;background:#0b3558;padding:12px 14px;font-size:10px}.admin-table-wrap td{color:#4d6872;vertical-align:top;border-bottom:1px solid #d9e4e2;padding:14px;font-size:12px}.admin-table-wrap tbody tr:last-child td{border-bottom:0}.admin-table-wrap td:first-child{max-width:360px}.admin-table-wrap td:first-child strong,.admin-table-wrap td:first-child span{display:block}.admin-table-wrap td:first-child strong{color:#0b7591;font-family:var(--font-mono), monospace}.admin-table-wrap td:first-child span{color:#385c69;margin-top:5px;line-height:1.35}.admin-table-wrap td a{color:#08738c;align-items:center;gap:6px;font-weight:700;display:flex}.admin-status{color:#6f5313;font:800 9px/1.2 var(--font-mono), monospace;background:#fff0bb;border-radius:7px;padding:6px 8px;display:inline-flex}.admin-table-note{color:#71858b;background:#f1f7f5;border-top:1px solid #d9e4e2;margin:0;padding:12px 14px;font-size:10px}.admin-card-grid{grid-template-columns:repeat(3,1fr);gap:13px;display:grid}.admin-card-grid article{background:#fff;border:1px solid #b8cdcc;border-radius:12px;flex-direction:column;align-items:flex-start;min-height:230px;padding:21px;display:flex}.admin-card-grid article>svg{color:#0a829c}.admin-card-grid article>span{color:#789097;font:800 9px/1 var(--font-mono), monospace;text-transform:uppercase;margin:15px 0 9px}.admin-card-grid h2{color:#153e51;font:700 19px/1.15 var(--font-display), sans-serif;margin:0}.admin-card-grid p{color:#668088;flex:1;font-size:12px;line-height:1.45}.admin-card-grid a{color:#08758e;align-items:center;gap:5px;font-size:12px;font-weight:800;display:flex}.admin-coverage{gap:7px;display:grid}.admin-coverage>div{background:#fff;border:1px solid #bfd0cf;border-radius:9px;grid-template-columns:2fr repeat(4,1fr);align-items:stretch;display:grid;overflow:hidden}.admin-coverage>div>*{border-right:1px solid #d2dfdd;align-items:center;gap:6px;padding:12px;font-size:10px;display:flex}.admin-coverage>div>strong{color:#234d5c}.admin-coverage>div>span{color:#496b68;font-family:var(--font-mono), monospace}.admin-coverage svg{color:#158c67;width:14px}@media (max-width:980px){.admin-shell{grid-template-columns:1fr}.admin-nav{height:auto;position:static}.admin-nav nav{grid-template-columns:repeat(5,1fr)}.admin-nav nav a>span{display:none}.admin-exit{margin-top:18px}.admin-metrics,.admin-card-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:700px){.access-boundary>div{padding:30px 22px}.access-boundary>div>div{flex-direction:column;align-items:stretch}.admin-nav nav{display:flex;overflow-x:auto}.admin-nav nav a{flex:none}.admin-main{padding:32px 16px 70px}.admin-header{flex-direction:column}.admin-metrics{grid-template-columns:1fr 1fr}.admin-toolbar{flex-wrap:wrap}.admin-toolbar label{flex-basis:100%}.admin-toolbar select,.admin-toolbar button{flex:1}.admin-card-grid{grid-template-columns:1fr}.admin-coverage{overflow-x:auto}.admin-coverage>div{min-width:760px}}.documentary-story{color:#fff;background:#082f4c;padding:104px 24px 96px;position:relative;overflow:hidden}.documentary-story:before{content:"";pointer-events:none;background:radial-gradient(circle at 8% 8%,#48dcd229,#0000 28%),radial-gradient(circle at 92% 92%,#ffd1661f,#0000 25%);position:absolute;inset:0}.documentary-shell{max-width:var(--page-max);margin:0 auto;position:relative}.documentary-heading{grid-template-columns:minmax(0,1fr) minmax(340px,.78fr);align-items:end;gap:70px;margin-bottom:40px;display:grid}.documentary-heading .section-kicker{color:#65ded4}.documentary-heading h2{color:#fff;max-width:720px;font:650 clamp(44px, 6vw, 78px)/.94 var(--font-display), sans-serif;letter-spacing:-.06em;text-wrap:balance;margin:9px 0 0}.documentary-heading>p{color:#c7e0e4;text-wrap:pretty;margin:0 0 5px;font-size:18px;line-height:1.62}.documentary-gallery{grid-template-rows:repeat(2,minmax(0,1fr));grid-template-columns:minmax(0,1.55fr) minmax(300px,.85fr);gap:16px;display:grid}.documentary-card{background:#0d3a53;border:1px solid #c6e5e847;border-radius:20px;min-width:0;margin:0;overflow:hidden;box-shadow:0 24px 70px #00122042}.documentary-card--feature{grid-row:1/3}.documentary-card--supporting{grid-template-columns:minmax(155px,.9fr) minmax(0,1.1fr);display:grid}.documentary-image{background:#174c62;min-height:246px;position:relative;overflow:hidden}.documentary-card--feature .documentary-image{aspect-ratio:1.55}.documentary-card--supporting .documentary-image{min-height:100%}.documentary-image img{object-fit:cover;width:100%;height:100%;transition:transform .7s cubic-bezier(.2,.8,.2,1),filter .7s;display:block}.documentary-card--feature .documentary-image img{object-position:57% center}.documentary-card--supporting:nth-child(2) .documentary-image img{object-position:center 52%}.documentary-card--supporting:nth-child(3) .documentary-image img{object-position:center}.documentary-card:hover .documentary-image img{filter:saturate(1.04);transform:scale(1.025)}.documentary-location{color:#fff;font:800 10px/1 var(--font-mono), monospace;letter-spacing:.05em;text-transform:uppercase;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#052334d1;border:1px solid #ffffff75;border-radius:999px;padding:7px 10px;position:absolute;bottom:14px;left:14px}.documentary-card figcaption{padding:24px 25px 25px}.documentary-card--supporting figcaption{flex-direction:column;justify-content:center;padding:20px;display:flex}.documentary-card h3{color:#fff;font:650 clamp(22px, 2.4vw, 32px)/1.03 var(--font-display), sans-serif;letter-spacing:-.035em;text-wrap:balance;margin:0}.documentary-card--supporting h3{font-size:21px}.documentary-card figcaption>p{color:#c2dce0;margin:11px 0 17px;font-size:14px;line-height:1.52}.documentary-card figcaption small{color:#85aeb6;margin-top:15px;font-size:10px;line-height:1.4;display:block}.documentary-credit__boundary{border-top:1px solid #c2dce038;padding-top:9px;color:#b1ced3!important;margin-top:10px!important}.documentary-card figcaption a{color:#8ce8df;text-underline-offset:3px;font-weight:800}.documentary-card figcaption a:hover{color:#fff}.documentary-system-strip{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:16px;display:grid}.documentary-system-card{background:#0d3a53;border:1px solid #c6e5e847;border-radius:20px;min-width:0;margin:0;overflow:hidden;box-shadow:0 24px 70px #00122038}.documentary-system-card .documentary-image{aspect-ratio:16/10;min-height:0}.documentary-system-card figcaption{padding:19px 20px 21px}.documentary-system-card figcaption>p{color:#fff;min-height:45px;margin:0;font-size:15px;font-weight:800;line-height:1.45}.documentary-system-card figcaption small{color:#85aeb6;margin-top:13px;font-size:10px;line-height:1.4;display:block}.documentary-system-card figcaption a{color:#8ce8df;text-underline-offset:3px;font-weight:800}.documentary-system-card:hover .documentary-image img{filter:saturate(1.04);transform:scale(1.025)}.documentary-disclosure{background:#05223294;border:1px solid #ffd16673;border-radius:13px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:16px 24px;margin-top:18px;padding:17px 19px;display:grid}.documentary-disclosure strong{color:#ffd166;font-size:12px}.documentary-disclosure p{color:#b8d3d8;margin:0;font-size:11px;line-height:1.5}.documentary-disclosure a{color:#e7f5f4;white-space:nowrap;font-size:11px;font-weight:800}@media (max-width:1040px){.documentary-heading{grid-template-columns:1fr;gap:20px}.documentary-heading>p{max-width:760px}.documentary-gallery{grid-template-rows:auto;grid-template-columns:1fr 1fr}.documentary-card--feature{grid-area:auto/1/auto/-1}.documentary-card--supporting{display:block}.documentary-card--supporting .documentary-image{aspect-ratio:16/10;min-height:230px}}@media (max-width:760px){.documentary-story{padding:70px 20px 64px}.documentary-heading{margin-bottom:28px}.documentary-heading h2{font-size:46px}.documentary-heading>p{font-size:16px}.documentary-gallery,.documentary-system-strip{grid-template-columns:1fr}.documentary-card--feature{grid-column:auto}.documentary-card--feature .documentary-image,.documentary-card--supporting .documentary-image{aspect-ratio:4/3;min-height:220px}.documentary-system-card .documentary-image{aspect-ratio:4/3}.documentary-card figcaption,.documentary-card--supporting figcaption{padding:21px}.documentary-card--supporting h3{font-size:23px}.documentary-disclosure{grid-template-columns:1fr;gap:7px;padding:16px}}@media (prefers-reduced-motion:reduce){.documentary-image img{transition:none}.documentary-card:hover .documentary-image img,.documentary-system-card:hover .documentary-image img{transform:none}}.admin-quality{gap:16px;display:grid}.admin-quality__toolbar{grid-template-columns:minmax(260px,1fr) auto auto;gap:9px;display:grid}.admin-quality__toolbar label{color:#668088;background:#fff;border:1px solid #aec3c3;border-radius:8px;align-items:center;gap:8px;min-height:44px;padding:0 12px;display:flex}.admin-quality__toolbar input{min-width:0;font:inherit;background:0 0;border:0;outline:0;flex:1}.admin-quality__toolbar select,.admin-quality__refresh{color:#315362;background:#fff;border:1px solid #aec3c3;border-radius:8px;min-height:44px;padding:0 13px;font-weight:750}.admin-quality__refresh{cursor:pointer;justify-content:center;align-items:center;gap:7px;display:flex}.admin-quality__refresh:disabled{opacity:.55;cursor:wait}.admin-quality__notice{border-radius:9px;align-items:center;gap:8px;padding:12px 14px;font-size:12px;font-weight:750;display:flex}.admin-quality__notice--success{color:#205e47;background:#e1f4e9;border:1px solid #8fc8ae}.admin-quality__notice--error{color:#7a3638;background:#fff0ed;border:1px solid #e4a19d}.admin-quality__loading,.admin-quality__empty{color:#496873;background:#f7fbfa;border:1px dashed #8daeb0;border-radius:12px;justify-content:center;align-items:center;gap:11px;min-height:150px;padding:28px;display:flex}.admin-quality__loading svg{animation:1s linear infinite admin-quality-spin}.admin-quality__empty{justify-content:flex-start}.admin-quality__empty>svg{color:#0d7e97;flex:none}.admin-quality__empty strong{color:#244e5e}.admin-quality__empty p{margin:5px 0 12px;font-size:12px}.admin-quality__empty button{color:#285363;cursor:pointer;background:#fff;border:1px solid #8fb1b2;border-radius:7px;min-height:36px;padding:0 12px;font-weight:800}.admin-quality__list{gap:12px;display:grid}.admin-quality__record{content-visibility:auto;contain-intrinsic-size:auto 360px;background:#fff;border:1px solid #b7cbca;border-radius:12px;padding:20px;box-shadow:0 3px #d9e6e3}.admin-quality__record-head{align-items:center;gap:9px;margin-bottom:13px;display:flex}.admin-quality__record-head time{color:#70878e;font:700 10px/1.2 var(--font-mono), monospace;margin-left:auto}.admin-quality__status,.admin-quality__ineligible{font:800 9px/1 var(--font-mono), monospace;text-transform:uppercase;letter-spacing:.04em;border-radius:7px;padding:6px 8px;display:inline-flex}.admin-quality__status--draft,.admin-quality__status--open{color:#6f5313;background:#fff0bb}.admin-quality__status--suspended{color:#873b3c;background:#ffe0dd}.admin-quality__status--triaged{color:#226178;background:#dceff5}.admin-quality__status--resolved{color:#246348;background:#dcf3e7}.admin-quality__ineligible{color:#58747d;background:#f1f7f6;border:1px solid #b5cbcf}.admin-quality__record h2{color:#143f52;max-width:900px;font:700 clamp(18px, 2.2vw, 24px)/1.2 var(--font-display), sans-serif;letter-spacing:-.025em;margin:0}.admin-quality__meta{color:#73878d;font:700 10px/1.45 var(--font-mono), monospace;margin:8px 0 0}.admin-quality__reason,.admin-quality__correction{color:#6e3a3c;background:#fff2ef;border-left:4px solid #e36c62;align-items:flex-start;gap:10px;margin-top:15px;padding:13px 14px;display:flex}.admin-quality__reason>svg{flex:none;margin-top:2px}.admin-quality__reason strong,.admin-quality__correction strong{font-size:12px}.admin-quality__reason p,.admin-quality__correction p{margin:4px 0 0;font-size:12px;line-height:1.48}.admin-quality__correction{color:#315e6e;background:#e9f5f6;border-color:#0e8fb6;display:block}.admin-quality__action{border-top:1px solid #d5e1df;grid-template-columns:1fr 1fr;gap:12px;margin-top:17px;padding-top:17px;display:grid}.admin-quality__action label{color:#3d616d;gap:6px;font-size:11px;font-weight:800;display:grid}.admin-quality__action label span{color:#83959a;font-weight:600}.admin-quality__action textarea{resize:vertical;color:#234b5b;width:100%;font:inherit;background:#fafdfe;border:1px solid #aec3c3;border-radius:8px;padding:10px 11px;line-height:1.4}.admin-quality__action textarea:focus{border-color:#1393a7;outline:3px solid #48dcd261}.admin-quality__action>div{flex-wrap:wrap;grid-column:1/-1;gap:8px;display:flex}.admin-quality__action button{cursor:pointer;border:1px solid #8aa9aa;border-radius:8px;min-height:40px;padding:0 13px;font-weight:800}.admin-quality__action button:disabled{opacity:.55;cursor:wait}.admin-quality__primary{color:#fff;background:#0d7692;border-color:#0c6e86!important}.admin-quality__danger{color:#fff;background:#a74646;border-color:#9d4545!important}.admin-quality__secondary{color:#315765;background:#fff}.admin-quality__check{justify-content:start;align-items:center;grid-column:1/-1!important;grid-template-columns:auto 1fr!important;display:flex!important}.admin-quality__check input{width:18px;height:18px}@keyframes admin-quality-spin{to{transform:rotate(360deg)}}@media (max-width:760px){.admin-quality__toolbar{grid-template-columns:1fr 1fr}.admin-quality__toolbar label{grid-column:1/-1}.admin-quality__action{grid-template-columns:1fr}.admin-quality__action>div,.admin-quality__check{grid-column:1}.admin-quality__record-head{flex-wrap:wrap;align-items:flex-start}.admin-quality__record-head time{width:100%;margin-left:0}}@media (prefers-reduced-motion:reduce){.admin-quality__loading svg{animation:none}}.game-hero{min-height:0;padding:28px 16px 54px}.game-hero .hero-copy{text-align:center;max-width:980px;margin:0 auto;display:block}.game-hero .hero-copy h1{color:#0a304b;max-width:none;font-size:clamp(31px,4vw,48px);line-height:1}.play-page{padding:18px 16px 42px}.play-page .play-safety-band{border-color:#d9c476;border-radius:10px;max-width:980px;min-height:38px;margin:12px auto 0;padding:8px 12px;font-size:10px}.play-page .play-safety-band a{margin-left:auto}.play-page #game{max-width:980px;margin:0 auto}.play-session-links{justify-content:center;gap:18px;max-width:980px;margin:0 auto;padding:18px 0 0;font-size:12px;font-weight:800;display:flex}.play-session-links a{color:#23637b;text-underline-offset:3px}@media (max-width:760px){.game-hero{padding:20px 8px 38px}.game-hero .hero-copy{margin-bottom:12px}.game-hero .hero-copy h1{font-size:32px}.play-page{padding:10px 0 32px}.play-page .play-safety-band{flex-flow:wrap;align-items:center;gap:5px 12px;margin:10px 8px 0;padding:8px 10px}.play-page .play-safety-band a{margin-left:0}.play-session-links{padding-top:15px}}@media (max-height:900px) and (min-width:761px){.refill-world{padding-bottom:10px}.flashcard-stage{min-height:0}.refill-world .quiz-card{margin-top:9px;padding:18px 22px 15px}.refill-world .quiz-card h2{margin:10px 0 12px;font-size:24px;line-height:1.12}.refill-world .answers{gap:6px}.refill-world .answer{min-height:48px;padding-block:6px}.question-source,.game-progress{margin-top:9px}.progress-scene{width:230px;height:155px}.progress-scene .earth-window,.progress-scene .earth-sprite,.progress-scene .earth-recovery-sprite{width:145px;height:145px}.progress-scene .cup-station,.progress-scene .cup-carriage{width:132px;height:132px}.progress-scene .cup-station{top:-13px}.progress-scene .cup-readout{top:51px}.progress-scene .cup-readout strong{font-size:22px}.progress-scene .lamp-bank{bottom:0}.lesson-readout{gap:2px;margin-top:-21px;padding:6px 12px}.lesson-readout strong{font-size:15px}.refill-world .game-footer-bar{margin-top:5px}}.game-hero{min-height:0;color:var(--ink);background:0 0;padding:clamp(26px,4vw,58px) 16px clamp(46px,6vw,84px);overflow:visible}.play-page{background:0 0;min-height:calc(100svh - 70px);padding:clamp(24px,4vw,54px) 16px clamp(40px,6vw,80px)}.play-page #game{width:100%;max-width:none;margin:0;scroll-margin-top:90px}.refill-game{--quiz-card-height:500px;--question-height:128px;width:100%;max-width:980px;box-shadow:none;color:var(--ink);isolation:isolate;background:0 0;border:0;border-radius:0;margin:0 auto;padding:0;position:relative}.refill-game__layout{grid-template-columns:minmax(480px,1fr) minmax(240px,280px);align-items:start;gap:28px 24px;display:grid}.quiz-panel{min-width:0;box-shadow:none;background:0 0;border:0;border-radius:0;margin:0;padding:0}.quiz-filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;min-height:68px;display:grid}.quiz-filters label{color:#315463;min-width:0;font:800 11px/1.2 var(--font-mono), monospace;letter-spacing:.08em;text-transform:uppercase}.quiz-filters label>span{margin:0 0 7px;display:block}.quiz-filters select{color:#123b50;cursor:pointer;background-color:#ffffffb8;border:1px solid #9bbabd;border-radius:9px;width:100%;height:44px;padding:0 38px 0 12px;font-size:15px;font-weight:750}.quiz-filters select:disabled{cursor:default;opacity:.7}.mobile-reward-summary{display:none}.question-shell{width:100%;height:var(--quiz-card-height);box-sizing:border-box;grid-template-rows:var(--question-height) minmax(0, 1fr);background:#fff;border:1px solid #b8cfd1;border-radius:22px;gap:14px;margin-top:22px;padding:18px 12px 16px;display:grid;position:relative;box-shadow:0 8px #3c697121,0 20px 42px #1d4b5417}.question-shell h2{box-sizing:border-box;color:#092d42;width:100%;height:100%;font:680 clamp(22px, 2vw, 27px)/1.18 var(--font-display), sans-serif;letter-spacing:-.025em;overflow-wrap:anywhere;text-align:center;text-wrap:balance;place-items:center;margin:0;padding:2px 18px 4px;display:grid}.question-shell h2:focus-visible{border-radius:6px}.question-shell .answers{border:0;grid-template-rows:repeat(4,minmax(0,1fr));gap:10px;min-width:0;height:auto;min-height:0;margin:0;padding:0;display:grid}.refill-game .answer{box-sizing:border-box;color:#123448;width:100%;height:100%;box-shadow:none;opacity:1;text-align:center;background:#fbfefe;border:2px solid #8abbd4;border-radius:10px;grid-template-columns:minmax(0,1fr);padding:8px 42px;font-size:clamp(14px,1.25vw,16px);font-weight:700;line-height:1.25;transition:border-color .15s,background-color .15s,transform .15s;position:relative}.refill-game .answer:not(:disabled):hover{background:#edfdfb;border-color:#087fa6;transform:translateY(-1px)}.refill-game .answer:disabled{cursor:default}.refill-game .answer__status{position:absolute;top:50%;right:14px;transform:translateY(-50%)}.refill-game .answer__copy{overflow-wrap:anywhere;text-align:center;min-width:0;max-height:100%;display:block}.refill-game .answer--correct{color:#0c5139;background:#e4f8ed;border-color:#19865e}.refill-game .answer--wrong{color:#762e32;background:#fff0f0;border-color:#d4585d}.question-loader,.answer-checking{z-index:3;color:#087fa6;width:28px;height:28px;position:absolute}.question-loader{top:calc(50% - 14px);left:calc(50% - 14px)}.quiz-error{color:#315463;text-align:center;grid-row:1/-1;place-content:center;justify-items:center;gap:18px;width:100%;height:100%;min-height:0;display:grid}.quiz-error strong{color:#123448;font-size:20px}.quiz-error button,.answer-retry{color:#0a4d64;cursor:pointer;background:#e5f8f5;border:1px solid #0a5d78;border-radius:9px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:0 16px;font-weight:800;display:inline-flex}.quiz-error button svg,.answer-retry svg{width:18px;height:18px}.answer-retry{z-index:4;position:absolute;bottom:16px;right:16px}.reward-column{flex-direction:column;align-items:center;min-width:0;display:flex}.global-cleaned-total{color:#315463;width:100%;min-height:34px;font:750 12px/1.4 var(--font-mono), monospace;text-align:center;margin:0 0 10px}.purifier-reward{width:100%;max-width:300px;min-height:438px;box-shadow:none;background:0 0;border:0;border-radius:0;flex-direction:column;align-items:center;margin:0;padding:0;display:flex;position:relative}.purifier-device-wrap{z-index:2;aspect-ratio:1;width:min(100%,280px);position:relative}.purifier-device{object-fit:contain;width:100%;height:100%;image-rendering:pixelated;-webkit-user-select:none;user-select:none;transition:filter .18s;display:block}.purifier-reward--active .purifier-device{filter:drop-shadow(0 0 10px #32d6d3a8);animation:.46s steps(2,end) infinite purifier-pulse}.falling-drop{z-index:4;background:#48e9ee;border:2px solid #075f8b;border-radius:55% 45% 62% 38%/67% 42% 58% 33%;width:13px;height:18px;animation:.5s cubic-bezier(.3,0,.8,.35) both purifier-drop;position:absolute;top:89.4%;left:47.75%;transform:translate(-50%)rotate(45deg);box-shadow:inset -3px -3px #0871a152}.cup-assembly{z-index:1;aspect-ratio:1;flex:none;width:min(76%,204px);margin-top:-59px;position:relative}.cup-frame{z-index:2;object-fit:contain;width:100%;height:100%;image-rendering:pixelated;-webkit-user-select:none;user-select:none;display:block;position:absolute;inset:0}.cup-water-window{z-index:1;border-radius:0 0 22% 22%;position:absolute;inset:23.5% 27.5% 22.5%;overflow:hidden}.cup-water{background:linear-gradient(90deg,#27c9e6 0%,#6eeaf0 52%,#21afd9 100%);transition:height .32s cubic-bezier(.22,1,.36,1);display:block;position:absolute;bottom:0;left:0;right:0;overflow:visible}.cup-water:before,.cup-water i{content:"";background:#9cf8f3;border:2px solid #087da7;border-radius:50%;width:116%;height:8px;position:absolute;top:-4px;left:-8%}.cup-progress-value{z-index:5;color:#0a3e58;min-width:54px;font:800 38px/1 var(--font-mono), monospace;letter-spacing:-.06em;text-align:left;position:absolute;bottom:20px;right:4px}.sponsor-ad{box-sizing:border-box;color:#4d6972;text-align:left;background:#ffffff75;border:1px solid #b6cacc;border-left:0;border-right:0;grid-area:2/1/auto/-1;justify-content:space-between;align-items:center;gap:16px;width:100%;min-height:54px;margin:0;padding:11px 16px;display:flex}.sponsor-ad strong{color:#173f50;font-size:14px;font-weight:800}@keyframes purifier-drop{0%{opacity:0;transform:translate(-50%,-5px)rotate(45deg)scale(.72)}14%{opacity:1}to{opacity:1;transform:translate(-50%,62px)rotate(45deg)scale(1)}}@keyframes purifier-pulse{50%{transform:translateY(1px)}}@keyframes cup-ripple{to{transform:translate(7%)}}.refill-game--reduced-motion *,.refill-game--reduced-motion :before,.refill-game--reduced-motion :after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}@media (max-width:1099px){.refill-game{max-width:960px}.refill-game__layout{grid-template-columns:minmax(0,1fr) minmax(260px,300px)}.sponsor-ad{grid-area:2/1/auto/-1}}@media (max-width:800px){.game-hero,.play-page{padding:24px 12px 54px}.play-page{min-height:calc(100svh - 62px)}.refill-game{max-width:620px}.refill-game__layout{grid-template-columns:minmax(0,1fr);gap:32px}.quiz-panel{grid-row:auto}.mobile-reward-summary{box-sizing:border-box;color:#164457;background:#eef8f6eb;border:1px solid #a9c6c8;border-left:0;border-right:0;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:5px 18px;min-width:0;min-height:58px;margin:10px 0 0;padding:9px 12px 10px;display:grid}.mobile-reward-summary>span{gap:2px;min-width:0;display:grid}.mobile-reward-summary>span:last-of-type{text-align:right;justify-items:end}.mobile-reward-summary small{color:#51727b;font:800 9px/1.15 var(--font-mono), monospace;letter-spacing:.08em;text-transform:uppercase}.mobile-reward-summary strong,.mobile-reward-summary output{color:#0a3e58;font:800 16px/1.1 var(--font-mono), monospace}.mobile-reward-summary output i{color:#54717a;letter-spacing:0;font-size:11px;font-style:normal}.mobile-reward-meter{background:#c8dcdd;border:0;border-radius:0;grid-column:1/-1;width:100%;height:5px;display:block;overflow:hidden}.mobile-reward-meter>span{background:#18a8bd;height:100%;transition:width .18s;display:block}.question-shell h2{font-size:clamp(19px,5vw,23px);line-height:1.18}.refill-game .answer{padding-inline:38px;font-size:clamp(13.5px,3.7vw,15px)}.reward-column{grid-row:2}.global-cleaned-total{margin-bottom:0}.purifier-reward{max-width:290px;min-height:400px}.purifier-device-wrap{width:248px}.cup-assembly{width:188px;margin-top:-58px}.cup-progress-value{font-size:36px;bottom:15px;right:9px}.sponsor-ad{flex-direction:column;grid-area:3/1;justify-content:center;align-items:flex-start;gap:3px;width:100%;min-height:58px;margin:0;padding:11px 14px}}@media (max-width:420px){.game-hero,.play-page{padding-inline:10px}.quiz-filters{gap:8px}.quiz-filters select{padding-left:9px;font-size:13px}.question-shell{gap:12px;margin-top:18px;padding:16px 9px 14px}.refill-game .answer{padding-inline:34px}}.game-hero,.play-page{background:radial-gradient(circle at 50% 38%,#80ecf094 0,#4bb8cb2e 32%,#0000 58%),linear-gradient(#2f8eb9 0%,#42b3c5 42%,#176da6 100%);padding:0;position:relative;overflow:hidden}.game-hero{min-height:calc(100svh - 72px)}.play-page{min-height:calc(100svh - 73px)}.game-hero:before,.play-page:before{content:"";pointer-events:none;opacity:.38;background-image:radial-gradient(circle at 8% 18%,#ffffff80 0 3px,#0000 4px),radial-gradient(circle at 91% 27%,#d6fdff85 0 4px,#0000 5px),radial-gradient(circle at 14% 66%,#ffffff52 0 2px,#0000 3px),radial-gradient(circle at 86% 75%,#d6fdff57 0 3px,#0000 4px),radial-gradient(circle at 72% 12%,#ffffff38 0 2px,#0000 3px);position:absolute;inset:0}.game-hero .hero-copy{display:none}.play-page #game{width:100%;max-width:none;margin:0}.refill-game{--quiz-card-height:330px;--question-height:108px;--reward-height:280px;box-sizing:border-box;width:100%;max-width:none;box-shadow:none;color:#082b57;isolation:isolate;background:0 0;border:0;border-radius:0;margin:0;padding:4px 16px 28px;position:relative;overflow:hidden}.refill-game:before,.refill-game:after{content:"";z-index:-1;pointer-events:none;filter:blur(2px);border-radius:50%;position:absolute}.refill-game:before{background:radial-gradient(#98f1f138,#0000 68%);width:min(100%,900px);height:58%;top:17%;left:50%;transform:translate(-50%)}.refill-game:after{border:1px solid #d2fbff2e;width:240px;height:240px;bottom:7%;right:0;box-shadow:-64vw -42vh 0 -74px #defdff1f,-18vw -8vh 0 -96px #defdff29}.refill-game__core{z-index:1;width:min(100%,760px);margin:0 auto;position:relative}.game-hud{box-sizing:border-box;color:#fff;justify-content:space-between;align-items:center;gap:12px;width:100%;min-height:42px;padding:4px 6px;display:flex}.game-hud__challenge{min-width:0;font:800 12px/1 var(--font-display), sans-serif;letter-spacing:.04em;text-transform:uppercase;align-items:center;gap:7px;display:inline-flex}.game-hud__challenge svg{fill:#82edff3d;filter:drop-shadow(0 2px 2px #0433593d);flex:none;width:20px;height:20px}.global-cleaned-total{width:auto;min-height:34px;box-shadow:none;color:#f1fdffd1;font:750 10px/1 var(--font-mono), monospace;white-space:nowrap;background:0 0;border:0;justify-content:center;align-items:center;gap:4px;margin:0;padding:0;display:inline-flex}.global-cleaned-total strong{color:#ffd166;font-size:13px}.quiz-filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;width:min(100%,560px);min-height:52px;margin:6px auto 0;display:grid}.quiz-filters label{color:#164a72;min-width:0;font:inherit;letter-spacing:0;text-transform:none;position:relative}.quiz-filters label>span{z-index:1;color:#4f748c;font:800 8px/1 var(--font-mono), monospace;letter-spacing:.08em;text-transform:uppercase;pointer-events:none;margin:0;position:absolute;top:5px;left:13px}.quiz-filters select{box-sizing:border-box;color:#082b57;background-color:#f7fdffeb;border:1px solid #ffffffb8;border-radius:12px;outline:0;width:100%;height:52px;padding:15px 36px 1px 12px;font-size:13px;font-weight:800;box-shadow:0 4px #083f5b1f,inset 0 1px #fffffff2}.quiz-filters select:focus-visible{outline-offset:2px;outline:3px solid #fff;box-shadow:0 0 0 6px #082b574d}.water-cycle{width:100%;position:relative}.dirty-water-reservoir{z-index:3;box-sizing:border-box;background:#cdeef46b;border:5px solid #f6fdfffa;border-radius:24px;width:94%;height:60px;margin:10px auto 0;position:relative;overflow:visible;box-shadow:0 5px #073e5f2e,0 12px 24px #073a5b3d,inset 0 0 0 2px #6fbdd194,inset 0 8px 10px #ffffff80}.dirty-water-reservoir__glass{z-index:3;pointer-events:none;background:linear-gradient(#fff6,#0000 38%,#08537114);border:1px solid #ffffffc7;border-radius:16px;position:absolute;inset:3px}.dirty-water-reservoir__water{z-index:1;background:radial-gradient(circle at 22% 32%,#494a3f6b 0 2px,#0000 3px),radial-gradient(circle at 72% 62%,#4045394d 0 2px,#0000 3px),linear-gradient(#b9ae96eb,#696051f0);border-radius:12px;position:absolute;inset:10px 8px 7px;overflow:hidden;box-shadow:inset 0 4px 8px #fff3}.dirty-water-reservoir__water:before{content:"";background:#cdc5b1db;border-radius:50%;width:110%;height:15px;animation:4.8s ease-in-out infinite alternate dirty-water-drift;position:absolute;top:-7px;left:-5%}.dirty-water-reservoir__water i{background:#3743318f;border-radius:60% 40%;width:4px;height:3px;animation:5.4s ease-in-out infinite alternate sediment-drift;position:absolute;transform:rotate(18deg)}.dirty-water-reservoir__water i:first-child{top:32%;left:11%}.dirty-water-reservoir__water i:nth-child(2){animation-delay:-1.2s;top:63%;left:27%}.dirty-water-reservoir__water i:nth-child(3){animation-delay:-2.8s;top:42%;left:43%}.dirty-water-reservoir__water i:nth-child(4){animation-delay:-.7s;top:66%;left:58%}.dirty-water-reservoir__water i:nth-child(5){animation-delay:-3.1s;top:28%;left:71%}.dirty-water-reservoir__water i:nth-child(6){animation-delay:-1.8s;top:57%;left:84%}.dirty-water-reservoir__water i:nth-child(7){animation-delay:-4s;top:22%;left:92%}.dirty-water-reservoir__label{z-index:5;color:#514a40;min-height:28px;font:850 10px/1 var(--font-display), sans-serif;letter-spacing:.04em;text-transform:uppercase;background:#fffffff5;border:2px solid #fff;border-radius:999px;align-items:center;gap:5px;padding:0 12px;display:inline-flex;position:absolute;bottom:-13px;left:18px;box-shadow:0 4px 8px #082b5733}.dirty-water-reservoir__label svg{fill:#8c806e;width:13px;height:13px}.dirty-water-inlet{z-index:2;box-sizing:border-box;background:#b9dce6;border:4px solid #f4fcfffa;border-top:0;border-radius:0 0 13px 13px;width:58px;height:20px;margin:-2px auto -3px;display:block;position:relative;overflow:hidden;box-shadow:0 4px 5px #073a5b33,inset 0 0 0 2px #488fa959}.dirty-water-inlet i{opacity:0;background:linear-gradient(#9b8f7b,#6f6556);border-radius:0 0 8px 8px;height:110%;position:absolute;inset:-110% 8px auto}.dirty-water-inlet[data-active=true] i{opacity:1;animation:.36s cubic-bezier(.25,.8,.35,1) both dirty-water-intake}.quiz-panel{z-index:4;width:100%;min-width:0;box-shadow:none;background:0 0;border:0;margin:0;padding:0;position:relative}.question-shell{width:100%;height:var(--quiz-card-height);box-sizing:border-box;grid-template-rows:var(--question-height) minmax(0, 1fr);background-color:#fff;background-image:linear-gradient(135deg,#def4fb61,#0000 26% 72%,#ccebf652);border:5px solid #f6fcfffa;border-radius:28px;gap:10px;margin:0;padding:20px 16px 16px;display:grid;position:relative;overflow:visible;box-shadow:0 8px #0f5b7e38,0 20px 32px #05395b3d,inset 0 0 0 2px #c7e7f2,inset 0 8px 16px #c4e6f13d}.question-shell__eyebrow{z-index:3;color:#2d7fb4;font:850 11px/1 var(--font-display), sans-serif;letter-spacing:.04em;text-transform:uppercase;white-space:nowrap;justify-content:center;align-items:center;gap:8px;display:inline-flex;position:absolute;top:14px;left:50%;transform:translate(-50%)}.question-shell__eyebrow svg{fill:#83edff;color:#46b7da;width:12px;height:12px}.question-shell__speckles{z-index:0;opacity:.4;pointer-events:none;background-image:radial-gradient(circle,#7dc6df 0 1.5px,#0000 1.8px),radial-gradient(circle,#7dc6df 0 1.5px,#0000 1.8px);background-position:0 0,100% 0;background-repeat:repeat-y;background-size:8px 8px;border-radius:18px;position:absolute;inset:18px 10px;-webkit-mask-image:linear-gradient(90deg,#000 0 18px,#0000 32px calc(100% - 32px),#000 calc(100% - 18px));mask-image:linear-gradient(90deg,#000 0 18px,#0000 32px calc(100% - 32px),#000 calc(100% - 18px))}.purification-pulse{z-index:1;opacity:0;pointer-events:none;background:linear-gradient(#0000 0%,#6fe9ff14 35%,#4cd1f285 49%,#9af5ff2e 55%,#0000 70%) 0 0/100% 220%;border-radius:18px;position:absolute;inset:18px 12px;overflow:hidden}.refill-game--drops-flowing .purification-pulse,.refill-game--cup-filling .purification-pulse{opacity:1;animation:.62s cubic-bezier(.22,1,.36,1) both purification-sweep}.question-shell h2{z-index:2;box-sizing:border-box;color:#082b57;width:100%;height:100%;font:760 clamp(21px, 1.8vw, 24px)/1.13 var(--font-display), sans-serif;letter-spacing:-.03em;overflow-wrap:anywhere;text-align:center;text-wrap:balance;place-items:center;margin:0;padding:0 22px 2px;display:grid;position:relative;overflow:hidden}.question-shell h2:focus-visible{outline-offset:2px;border-radius:8px;outline:3px solid #2a87b9}.question-shell .answers{z-index:2;border:0;grid-template-rows:repeat(2,minmax(0,1fr));grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;min-width:0;height:auto;min-height:0;margin:0;padding:0;display:grid;position:relative}.refill-game .answer{box-sizing:border-box;color:#0c315c;text-align:center;background:linear-gradient(#fff 0%,#f7fbfd 100%);border:1px solid #c7dde8;border-radius:13px;place-items:center;width:100%;height:100%;min-height:44px;padding:4px 32px;font-size:clamp(14px,1.08vw,15px);font-weight:780;line-height:1.12;transition:transform .13s,box-shadow .13s,border-color .13s,background-color .13s;display:grid;position:relative;overflow:hidden;box-shadow:0 4px #ccdae2,0 7px 12px #082b5717,inset 0 1px #fffffff2}.refill-game .answer:not(:disabled):hover{background:#f1fcff;border-color:#58b5d3;transform:translateY(-1px);box-shadow:0 6px #b8d5e1,0 10px 16px #082b571f}.refill-game .answer:not(:disabled):active{transform:translateY(2px)scale(.99);box-shadow:0 1px #b8d5e1,0 3px 8px #082b571a}.refill-game .answer:disabled{cursor:default;opacity:1}.refill-game .answer__copy{overflow-wrap:anywhere;text-align:center;min-width:0;max-height:100%;display:block;overflow:hidden}.refill-game .answer__status{width:20px;height:20px;position:absolute;top:50%;right:10px;transform:translateY(-50%)}.refill-game .answer--correct{color:#0c593e;background:linear-gradient(#effcf6,#dff7eb);border-color:#42ad82;box-shadow:0 4px #75be9f,0 0 0 3px #4fc79521,0 9px 16px #1580581a}.refill-game .answer--wrong{color:#7d3039;background:linear-gradient(#fff6f7,#ffe9ec);border-color:#df7b83;box-shadow:0 4px #d99da2,0 0 0 3px #d95f6817}.question-loader,.answer-checking{color:#2b8cb8}.answer-checking{top:16px;right:18px}.quiz-error{z-index:3;position:relative}.clean-water-outlet{z-index:7;box-sizing:border-box;background:linear-gradient(#eaf7fb,#a9d7e6);border:5px solid #f5fcfffa;border-radius:0 0 18px 18px;width:62px;height:30px;display:block;position:absolute;bottom:-18px;left:50%;overflow:hidden;transform:translate(-50%);box-shadow:0 5px 8px #063b5c47,inset 0 0 0 2px #4193b347}.clean-water-outlet i{background:linear-gradient(#83edff,#35c8ef);border-radius:0 0 8px 8px;height:0;transition:height .16s;position:absolute;inset:0 10px auto;box-shadow:0 0 12px #3ad8f6b3}.clean-water-outlet[data-active=true] i{height:100%}.purifier-reward{z-index:2;width:100%;max-width:none;min-height:0;height:var(--reward-height);box-shadow:none;background:0 0;border:0;border-radius:0;margin:0;padding:0;display:block;position:relative}.clean-droplets{z-index:8;pointer-events:none;width:50px;height:62px;position:absolute;top:0;left:50%;transform:translate(-50%)}.clean-droplets i{opacity:0;background:linear-gradient(135deg,#83edff,#259fdd);border:2px solid #fff;border-radius:68% 32%;width:10px;height:14px;position:absolute;top:0;left:50%;transform:translate(-50%,-4px)rotate(45deg)scale(.7);box-shadow:0 0 0 1px #278ac4,0 0 12px #83edffcc}.clean-droplets i:nth-child(2){width:8px;height:11px;animation-delay:.1s;left:32%}.clean-droplets i:nth-child(3){width:7px;height:10px;animation-delay:.18s;left:70%}.clean-droplets[data-active=true] i{animation:.52s cubic-bezier(.3,0,.65,1) both clean-drop-fall}.reward-score-pop,.cup-completion{z-index:12;color:#fff;width:max-content;font:900 16px/1 var(--font-display), sans-serif;letter-spacing:.02em;text-shadow:0 2px #176ea7,0 4px 12px #082b5773;pointer-events:none;animation:.68s cubic-bezier(.2,.8,.3,1) both reward-score-rise;position:absolute;top:56px;left:calc(50% + 92px);transform:translate(-50%)}.cup-completion{color:#082b57;text-shadow:none;background:linear-gradient(#f8d86b,#f5a93c);border:2px solid #ffffffd1;border-radius:999px;padding:8px 13px;font-size:15px;animation:.65s cubic-bezier(.2,1.3,.35,1) both cup-complete-pop;top:34px;left:50%;box-shadow:0 4px #7d4d0938,0 0 24px #ffe57abd}.cup-assembly{z-index:4;aspect-ratio:1;width:clamp(220px,28vw,244px);margin:0;position:absolute;top:8px;left:50%;transform:translate(-50%)}.cup-shadow{z-index:0;background:linear-gradient(#2381bb57,#04447f8f);border:2px solid #77ddf170;border-radius:50%;height:19%;position:absolute;bottom:5%;left:4%;right:4%;box-shadow:0 9px 12px #05326057,0 0 24px #6be7f72e}.cup-frame{z-index:3;box-sizing:border-box;clip-path:polygon(0 0,100% 0,86% 100%,14% 100%);filter:drop-shadow(0 9px 9px #04376347);pointer-events:none;background:linear-gradient(105deg,#ffffff57,#0000 28%),linear-gradient(255deg,#53d2ec38,#0000 30%);border:9px solid #e0fbffe0;border-top-width:12px;border-radius:12% 12% 24% 24%;display:block;position:absolute;inset:17% 9%;box-shadow:inset 5px 0 #ffffff61,inset -5px 0 #1f9dcd2e,inset 0 -7px #defaff9e}.cup-frame:before{content:"";background:#a3ebf833;border:3px solid #f9fffff5;border-radius:50%;height:15px;position:absolute;top:-12px;left:-4px;right:-4px;box-shadow:inset 0 3px #2c96c23d}.cup-frame:after{content:"";background:#5ed1e847;border:3px solid #ebfdfff0;border-radius:50%;height:13px;position:absolute;bottom:-9px;left:12%;right:12%}.cup-water-window{z-index:2;clip-path:polygon(0 0,100% 0,87% 100%,13% 100%);border-radius:4% 4% 21% 21%;position:absolute;inset:21% 13% 22%;overflow:hidden}.cup-water{background:linear-gradient(90deg,#219edb 0%,#49d8f3 46%,#34bce9 100%);transition:height .3s cubic-bezier(.22,1,.36,1);display:block;position:absolute;bottom:0;left:0;right:0;overflow:visible;box-shadow:inset 10px 0 12px #fff3,inset -8px 0 10px #0e6db733}.refill-game--resetting-cup .cup-water{transition-duration:.14s}.cup-water:before,.cup-water i{content:"";background:linear-gradient(#baf8ff,#63def5);border:2px solid #dffdffe6;border-radius:50%;width:116%;height:10px;position:absolute;top:-5px;left:-8%;box-shadow:0 2px #1c91ca8c,0 0 10px #6eeaffa3}.cup-water i{opacity:.7;animation:.68s ease-in-out infinite alternate hero-cup-ripple;display:block}.cup-glint{z-index:5;filter:blur(1px);opacity:.6;pointer-events:none;background:linear-gradient(#fffc,#0000);border-radius:999px;width:12%;height:46%;position:absolute;top:20%;left:24%;transform:rotate(5deg)}.purifier-reward--complete .cup-assembly{animation:none}.purifier-reward--complete .cup-shadow{animation:.65s ease-out both hero-cup-glow}.purifier-reward--complete .cup-frame{filter:drop-shadow(0 9px 9px #04376347)drop-shadow(0 0 18px #a6f8ffe6)}.purifier-reward--complete .cup-progress-card__cups{animation:.48s cubic-bezier(.2,1.15,.35,1) both cup-counter-stamp}.cup-progress-card{z-index:9;box-sizing:border-box;color:#082b57;background:#fcfefff5;border:3px solid #fffffffa;border-radius:23px;grid-template-rows:1fr 7px;grid-template-columns:46px minmax(0,1fr);align-items:center;gap:4px 10px;width:232px;height:76px;padding:8px 14px 9px 10px;display:grid;position:absolute;bottom:22px;left:50%;transform:translate(-50%);box-shadow:0 6px #073f6933,0 13px 24px #07315b47,inset 0 1px #fff}.cup-progress-card__icon{color:#258bca;background:linear-gradient(#f8fdff,#e6f4fa);border:2px solid #c6e6f2;border-radius:50%;grid-row:1;place-items:center;width:42px;height:42px;display:grid;box-shadow:0 3px 6px #094f7629}.cup-progress-card__icon svg{fill:#46cbef4d;width:25px;height:25px}.cup-progress-card__copy{align-self:center;gap:1px;min-width:0;display:grid}.cup-progress-card__copy>span{white-space:nowrap;align-items:baseline;gap:3px;display:flex}.cup-progress-value{color:#082b57;min-width:0;font:900 31px/.94 var(--font-display), sans-serif;letter-spacing:-.05em;font-variant-numeric:tabular-nums;text-align:left;position:static}.cup-progress-value[data-compact=true]{letter-spacing:-.04em;font-size:23px}.cup-progress-card__copy strong{color:#247fbc;font:900 11px/1 var(--font-display), sans-serif;letter-spacing:.08em;text-transform:uppercase}.cup-progress-meter{background:#d4e1e9;border-radius:999px;grid-column:1/-1;height:7px;display:block;overflow:hidden;box-shadow:inset 0 1px 2px #082b572e}.cup-progress-meter i{border-radius:inherit;background:linear-gradient(90deg,#258dca,#35c8ef);height:100%;transition:width .3s cubic-bezier(.22,1,.36,1);display:block;box-shadow:0 0 8px #35c8ef94}.cup-progress-card__cups{z-index:2;box-sizing:border-box;color:#0a3d67;background:linear-gradient(#f4fdfffa,#cdebf4fa);border:2px solid #f2fdfffa;border-radius:7px 7px 14px 14px;grid-template-columns:23px 9px minmax(12px,auto) minmax(0,1fr);align-items:center;gap:4px;width:154px;height:29px;padding:3px 9px 4px 8px;display:grid;position:absolute;top:calc(100% - 5px);left:50%;transform:translate(-50%);box-shadow:0 4px #073f693d,0 8px 14px #07315b3d,inset 0 1px #fff}.cup-progress-card__cups:before{content:"";z-index:-1;box-sizing:border-box;background:#dff2f7;border:2px solid #f2fdfffa;border-bottom:0;border-radius:7px 7px 0 0;width:58px;height:8px;position:absolute;top:-7px;left:50%;transform:translate(-50%)}.cup-progress-card__cups:after{content:"";background:#79b7ca;border-radius:50%;width:3px;height:3px;position:absolute;top:6px;right:6px;box-shadow:0 0 0 1px #fffc}.cup-progress-card__mini-cup{box-sizing:border-box;clip-path:polygon(0 0,100% 0,84% 100%,16% 100%);filter:drop-shadow(0 2px 1px #0645704d);background:linear-gradient(#dcf8fd6b 0 35%,#72e2f3 36% 43%,#2aa9d9 44% 100%);border:3px solid #e8fcfffa;border-top-width:4px;border-radius:3px 3px 7px 7px;width:23px;height:18px;display:block;position:relative;box-shadow:inset 3px 0 #ffffff61,inset -2px 0 #157fb138}.cup-progress-card__mini-cup:after{content:"";background:#ffffffad;border-radius:999px;width:2px;position:absolute;top:2px;bottom:2px;left:4px}.cup-progress-card__multiplier{color:#397594;font:900 13px/1 var(--font-display), sans-serif}.cup-progress-card__cup-total{color:#082b57;font:900 17px/1 var(--font-display), sans-serif;font-variant-numeric:tabular-nums;letter-spacing:-.03em}.cup-progress-card__cups>strong{color:#247fbc;min-width:0;font:900 8px/1 var(--font-display), sans-serif;letter-spacing:.06em;text-align:left;text-transform:uppercase;white-space:nowrap}.cup-equation{z-index:8;color:#f1fdfff5;min-height:18px;font:800 10px/1 var(--font-display), sans-serif;letter-spacing:.02em;white-space:nowrap;text-shadow:0 2px 5px #05315b70;justify-content:center;align-items:center;gap:5px;margin:0;display:inline-flex;position:absolute;bottom:0;left:50%;transform:translate(-50%)}.cup-equation svg{fill:#83edff73;width:12px;height:12px}.sponsor-ad{z-index:1;box-sizing:border-box;color:#effbffd1;text-align:left;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#05436f40;border:1px solid #ffffff47;border-radius:13px;justify-content:space-between;align-items:center;gap:16px;width:min(100% - 32px,760px);min-height:54px;margin:30px auto 0;padding:10px 15px;display:flex;position:relative}.sponsor-ad strong{color:#fff;font-size:12px}.sponsor-ad span{font:650 9px/1.35 var(--font-mono), monospace}@keyframes dirty-water-drift{to{transform:translate(4%)}}@keyframes sediment-drift{to{transform:translate(9px,3px)rotate(-12deg)}}@keyframes dirty-water-intake{0%{transform:translateY(-10%)}to{transform:translateY(100%)}}@keyframes purification-sweep{0%{background-position:0 -110%}to{background-position:0 110%}}@keyframes clean-drop-fall{0%{opacity:0;transform:translate(-50%,-5px)rotate(45deg)scale(.65)}18%{opacity:1}82%{opacity:1}to{opacity:0;transform:translate(-50%,54px)rotate(45deg)scale(1)}}@keyframes reward-score-rise{0%{opacity:0;transform:translate(-50%,12px)scale(.82)}26%{opacity:1;transform:translate(-50%)scale(1.06)}to{opacity:0;transform:translate(-50%,-20px)scale(1)}}@keyframes hero-cup-ripple{to{transform:translate(8%)}}@keyframes hero-cup-glow{45%{opacity:1;box-shadow:0 9px 12px #05326057,0 0 38px #a6f8ffb8}}@keyframes cup-complete-pop{0%{opacity:0;transform:translate(-50%)scale(.72)}45%{opacity:1;transform:translate(-50%)scale(1.08)}to{opacity:1;transform:translate(-50%)scale(1)}}@keyframes cup-counter-stamp{0%{filter:brightness();transform:translate(-50%,-3px)scale(.94)}55%{filter:brightness(1.14);transform:translate(-50%,1px)scale(1.04)}to{filter:brightness();transform:translate(-50%)scale(1)}}.refill-game--reduced-motion .reward-score-pop,.refill-game--reduced-motion .cup-completion,.refill-game--reduced-motion .cup-progress-card__cups{opacity:1;transform:translate(-50%);animation:none!important}@media (max-height:800px) and (min-width:801px){.refill-game{--quiz-card-height:300px;--question-height:96px;--reward-height:240px;padding-top:0}.game-hud{min-height:34px}.quiz-filters{min-height:44px;margin-top:2px}.quiz-filters select{height:44px}.dirty-water-reservoir{height:48px;margin-top:5px}.question-shell{padding-top:18px}.cup-assembly{width:194px}.cup-progress-card{bottom:19px;transform:translate(-50%)scale(.92)}}@media (max-width:800px){.game-hero,.play-page{padding:0}.game-hero{min-height:calc(100svh - 64px)}.play-page{min-height:calc(100svh - 65px)}.refill-game{--quiz-card-height:clamp(336px, 40svh, 360px);--question-height:clamp(98px, 12svh, 108px);--reward-height:clamp(266px, 31.5svh, 294px);max-width:none;padding:2px 10px 24px}.refill-game__core{width:100%;max-width:620px}.game-hud{min-height:clamp(36px,4.5svh,40px);padding-inline:2px}.game-hud__challenge{gap:5px;font-size:9px}.game-hud__challenge svg{width:17px;height:17px}.global-cleaned-total{border-radius:11px;min-height:31px;padding-inline:9px;font-size:8px}.global-cleaned-total strong{font-size:11px}.quiz-filters{gap:7px;min-height:clamp(44px,5.4svh,46px);margin-top:3px}.quiz-filters label>span{font-size:7px;top:4px;left:10px}.quiz-filters select{border-radius:10px;height:clamp(44px,5.4svh,46px);padding:13px 30px 0 9px;font-size:11.5px}.dirty-water-reservoir{border-width:4px;border-radius:20px;width:96%;height:clamp(48px,6svh,56px);margin-top:6px}.dirty-water-reservoir__water{inset:8px 7px 6px}.dirty-water-reservoir__label{min-height:25px;padding-inline:10px;font-size:9px;bottom:-11px;left:13px}.dirty-water-inlet{width:52px;height:clamp(17px,2svh,19px)}.question-shell{border-width:4px;border-radius:25px;gap:9px;padding:18px 12px 13px;box-shadow:0 7px #0f5b7e38,0 16px 27px #05395b38,inset 0 0 0 2px #c7e7f2,inset 0 7px 13px #c4e6f138}.question-shell__eyebrow{font-size:10px;top:12px}.question-shell h2{padding-inline:11px;font-size:clamp(18px,4.6vw,21px);line-height:1.1}.question-shell .answers{gap:8px}.refill-game .answer{border-radius:11px;min-height:44px;padding:4px 28px 4px 10px;font-size:clamp(12px,3.2vw,14px);line-height:1.08}.refill-game .answer__status{width:18px;height:18px;right:8px}.clean-water-outlet{border-width:4px;width:56px;height:27px;bottom:-17px}.purifier-reward{height:var(--reward-height)}.clean-droplets{height:55px}.cup-assembly{width:clamp(208px,54vw,232px);top:7px}.reward-score-pop{font-size:14px;top:48px;left:calc(50% + 82px)}.cup-completion{font-size:13px;top:29px;left:50%}.cup-progress-card{border-radius:21px;width:clamp(212px,57vw,232px);height:clamp(72px,8.8svh,78px);bottom:8px}.cup-progress-value{font-size:29px}.cup-equation{min-height:16px;font-size:9px}.sponsor-ad{flex-direction:column;justify-content:center;align-items:flex-start;gap:3px;width:calc(100% - 20px);min-height:58px;margin-top:30px;padding:10px 12px}}@media (max-width:389px){.refill-game{--quiz-card-height:492px;--question-height:136px;--reward-height:274px}.question-shell .answers{grid-template-rows:repeat(4,minmax(0,1fr));grid-template-columns:1fr}}.home-ai-mission{color:#f7ffff;background:radial-gradient(circle at 88% 12%,#49d9cf33,#0000 30%),linear-gradient(118deg,#061f31 0%,#073d50 64%,#075a68 100%);border-bottom:1px solid #7befe24d;position:relative;overflow:hidden}.home-ai-mission:after{content:"";pointer-events:none;border:1px solid #7befe233;border-radius:50%;width:290px;height:290px;position:absolute;bottom:-112px;right:-72px;box-shadow:-52px -42px 0 -32px #7befe214,-104px -86px 0 -70px #ffd1661a}.home-ai-mission__inner{z-index:1;box-sizing:border-box;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:clamp(28px,6vw,92px);width:min(100% - 48px,1220px);min-height:232px;margin:0 auto;padding:clamp(30px,4vw,54px) 0;display:grid;position:relative}.home-ai-mission__copy{max-width:850px}.home-ai-mission__eyebrow{color:#7befe2;font:700 11px/1.2 var(--font-mono), monospace;letter-spacing:.13em;text-transform:uppercase;margin:0 0 12px}.home-ai-mission h1{color:#fff;max-width:840px;font:650 clamp(38px, 4.4vw, 66px)/.94 var(--font-display), sans-serif;letter-spacing:-.055em;text-wrap:balance;margin:0}.home-ai-mission__copy>p:last-child{color:#c9e4e7;max-width:780px;margin:20px 0 0;font-size:clamp(16px,1.45vw,19px);line-height:1.5}.home-ai-mission__actions{gap:10px;min-width:246px;display:grid}.home-ai-mission__actions a,.ai-water-audience-actions a{box-sizing:border-box;color:#efffff;text-align:center;border:1px solid #7befe29e;justify-content:center;align-items:center;min-height:48px;padding:0 18px;font-size:14px;font-weight:800;text-decoration:none;transition:background-color .16s,border-color .16s,color .16s,transform .16s;display:inline-flex}.home-ai-mission__actions a:first-child,.ai-water-audience-actions a:first-child{color:#06243a;background:#ffd166;border-color:#ffd166}.home-ai-mission__actions a:hover,.ai-water-audience-actions a:hover{color:#06243a;background:#fff;border-color:#fff;transform:translateY(-1px)}:is(.home-ai-mission__actions a:focus-visible,.ai-water-audience-actions a:focus-visible){outline-offset:3px;outline:3px solid #ffd166}.ai-water-audience-actions{flex-wrap:wrap;gap:10px;margin-top:22px;display:flex}.ai-water-audience-actions a{min-width:210px}@media (max-width:860px){.home-ai-mission__inner{grid-template-columns:1fr;align-items:start;gap:24px}.home-ai-mission__actions{grid-template-columns:repeat(2,minmax(0,1fr));width:100%;min-width:0}}@media (max-width:560px){.home-ai-mission__inner{gap:18px;width:min(100% - 36px,1220px);min-height:0;padding:22px 0 24px}.home-ai-mission h1{font-size:clamp(32px,9.6vw,43px);line-height:.95}.home-ai-mission__copy>p:last-child{margin-top:14px;font-size:15px;line-height:1.45}.home-ai-mission__actions{grid-template-columns:1fr;gap:8px}.home-ai-mission__actions a,.ai-water-audience-actions a{min-height:44px}.ai-water-audience-actions{display:grid}.ai-water-audience-actions a{width:100%;min-width:0}}@media (prefers-reduced-motion:reduce){.home-ai-mission__actions a,.ai-water-audience-actions a{transition:none}}.refill-game--focused{padding-inline:12px;overflow:visible}.player-hub-layout{width:100%;margin:0 auto;display:block}.refill-game--focused .refill-game__core{width:min(100%,880px);min-width:0;margin:0 auto}@media (min-width:1081px){.refill-game--focused{--quiz-card-height:clamp(330px, 31svh, 380px);--question-height:clamp(108px, 10svh, 126px);--reward-height:clamp(300px, 32svh, 390px);min-height:calc(100svh - 72px)}.refill-game--focused .purifier-reward .cup-assembly{width:clamp(204px,19svh,244px)}.refill-game--focused .purifier-reward .cup-progress-card{top:clamp(180px,17svh,220px)}}@media (min-width:1081px) and (max-height:800px){.refill-game--focused{--quiz-card-height:300px;--question-height:96px;--reward-height:240px}.refill-game--focused .purifier-reward .cup-assembly{width:166px}.refill-game--focused .purifier-reward .cup-progress-card{width:216px;height:70px;top:146px}}.player-hub-sidebar{z-index:20;box-sizing:border-box;color:#effdff;background:radial-gradient(circle at 90% 5%,#51dfdc3b,#0000 28%),linear-gradient(155deg,#073852,#082a44 72%);border:1px solid #dafbff6b;border-radius:20px;flex-direction:column;gap:14px;width:100%;max-height:calc(100svh - 96px);padding:15px;display:flex;position:sticky;top:84px;overflow-y:auto;box-shadow:0 8px #05304c33,0 20px 44px #04274347}.player-hub-sidebar__heading{justify-content:space-between;align-items:center;gap:10px;min-height:36px;padding:0 5px;display:flex}.player-hub-sidebar__heading>span{color:#fff;font:850 16px/1 var(--font-display), sans-serif;letter-spacing:-.02em;align-items:center;gap:8px;display:inline-flex}.player-hub-sidebar__heading svg{color:#72e8e3;fill:#72e8e333;width:20px;height:20px}.player-hub-nav{gap:4px;display:grid}.player-hub-nav button,.player-hub-nav a{box-sizing:border-box;color:#ccebf0;cursor:pointer;text-align:left;background:0 0;border:1px solid #0000;border-radius:11px;grid-template-columns:24px minmax(0,1fr);align-items:center;gap:10px;width:100%;min-height:45px;padding:0 12px;font-size:13px;font-weight:800;line-height:1;text-decoration:none;display:grid}.player-hub-nav button:hover,.player-hub-nav a:hover{color:#fff;background:#7aeae51a;border-color:#7aeae552}.player-hub-nav button[aria-current=page]{color:#fff;background:linear-gradient(100deg,#5de1da47,#5de1da14);border-color:#8af4ec9e;box-shadow:inset 3px 0 #72e8e3}.player-hub-nav svg{justify-self:center;width:19px;height:19px}.player-hub-nav__divider{background:#cef4f633;height:1px;margin:7px 5px}.player-hub-progress{background:#02182a57;border:1px solid #afefef3d;border-radius:14px;gap:10px;margin-top:auto;padding:13px;display:grid}.player-hub-progress>span{color:#a9d6de;font:750 9px/1.2 var(--font-mono), monospace;letter-spacing:.08em;text-transform:uppercase}.player-hub-progress>div{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;display:grid}.player-hub-progress p{gap:3px;min-width:0;margin:0;display:grid}.player-hub-progress output{color:#ffd166;font:900 25px/1 var(--font-display), sans-serif;letter-spacing:-.045em}.player-hub-progress p span{color:#e4f8fa;font-size:9px;font-weight:750;line-height:1.2}.player-hub-progress small,.player-hub-signed-in{color:#9fc9d0;margin:0;font-size:9px;line-height:1.45}.player-hub-signed-in{padding:0 5px}.player-hub-signed-in strong{color:#fff}.game-score-rule{color:#f1fdffdb;min-height:34px;font:750 10px/1 var(--font-mono), monospace;white-space:nowrap;justify-content:center;align-items:center;gap:4px;display:inline-flex}.game-score-rule strong{color:#ffd166;font-size:14px}.player-hub-panel{box-sizing:border-box;color:#123b53;background:radial-gradient(circle at 92% 7%,#4dd9d02e,#0000 28%),#fafefff5;border:1px solid #ffffffd1;border-radius:26px;flex-direction:column;gap:24px;width:min(100%,720px);min-height:560px;margin:6px auto 0;padding:clamp(24px,5vw,52px);display:flex;box-shadow:0 8px #083f5b29,0 24px 48px #05375638}.player-hub-panel__intro{grid-template-columns:56px minmax(0,1fr);align-items:start;gap:18px;display:grid}.player-hub-panel__icon{color:#087b91;background:#def8f5;border:1px solid #9ddbdc;border-radius:16px;place-items:center;width:54px;height:54px;display:grid}.player-hub-panel__icon svg{width:27px;height:27px}.player-hub-panel__intro>div>span{color:#508092;font:750 10px/1.2 var(--font-mono), monospace;letter-spacing:.1em;text-transform:uppercase}.player-hub-panel h2{color:#082f52;font:800 clamp(30px, 4vw, 43px)/.98 var(--font-display), sans-serif;letter-spacing:-.05em;margin:5px 0 9px}.player-hub-panel__intro p{color:#466c79;max-width:560px;margin:0;font-size:14px;line-height:1.55}.player-hub-setting-card{background:#fff;border:1px solid #bdd9dd;border-radius:17px;gap:9px;padding:20px;display:grid;box-shadow:0 6px 16px #10475b14}.player-hub-setting-card>span,.player-hub-group-form>label{color:#174e63;font-size:13px;font-weight:850}.player-hub-setting-card select,.player-hub-group-form input{box-sizing:border-box;color:#0a3850;background:#f8fcfd;border:1px solid #83b7c3;border-radius:11px;width:100%;min-height:50px;padding:0 14px;font-size:15px;font-weight:750}.player-hub-setting-card small{color:#5c7881;font-size:11px;line-height:1.45}.player-hub-return,.player-hub-group-form button,.player-hub-create-group{box-sizing:border-box;color:#fff;cursor:pointer;background:#0a6f8e;border:1px solid #075878;border-radius:11px;justify-content:center;align-self:flex-start;align-items:center;min-height:46px;padding:0 18px;font-size:13px;font-weight:850;text-decoration:none;display:inline-flex}.player-hub-return{margin-top:auto}.player-hub-group-form{background:#fff;border:1px solid #bdd9dd;border-radius:17px;gap:9px;padding:20px;display:grid}.player-hub-group-form>div{grid-template-columns:minmax(0,1fr) auto;gap:9px;display:grid}.player-hub-group-form input{letter-spacing:.13em;text-transform:uppercase}.player-hub-group-form button{min-width:118px}.player-hub-group-form button:disabled{color:#405a60;cursor:not-allowed;background:#b7c7ca;border-color:#96aaae}.player-hub-create-group{color:#0b536c;background:#edf8f8;border-color:#8eb8c1}.player-hub-current-group,.player-hub-group-status,.player-hub-loading{color:#145c4b;background:#e7f8f1;border:1px solid #9bd2c8;border-radius:11px;margin:0;padding:13px 15px;font-size:13px;line-height:1.45;display:block}.player-hub-loading{align-items:center;gap:8px;display:inline-flex}.player-hub-loading svg{width:18px;height:18px}.player-leaderboards{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.player-leaderboards>section{background:#fff;border:1px solid #c3dde0;border-radius:15px;min-width:0;padding:15px}.player-leaderboards h3{color:#0b4058;font:800 17px/1 var(--font-display), sans-serif;margin:0 0 12px}.player-leaderboards p{color:#647e86;margin:0;font-size:12px;line-height:1.45}.player-ranking-list{gap:7px;margin:0;padding:0;list-style:none;display:grid}.player-ranking-list li{background:#f2f9fa;border-radius:10px;grid-template-columns:28px minmax(0,1fr);align-items:center;gap:3px 8px;min-width:0;padding:9px;display:grid}.player-ranking-list__rank{color:#087b91;background:#dff5f2;border-radius:50%;grid-row:1/span 2;place-items:center;width:26px;height:26px;font-size:11px;font-weight:900;display:grid}.player-ranking-list strong{color:#133e52;text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:12px;overflow:hidden}.player-ranking-list li>span:last-child{color:#5a7a84;font-size:9px;line-height:1.3}.cup-frame{width:auto;height:auto;inset:17% 9%}.cup-water[data-empty=true]:before,.cup-water[data-empty=true] i{display:none}.purifier-reward .cup-assembly{width:204px;top:2px}.purifier-reward .cup-progress-card{width:232px;height:76px;top:180px;bottom:auto;transform:translate(-50%)}@media (max-width:1080px){.refill-game--focused{overflow:hidden}.player-hub-layout{width:100%;display:block}.player-hub-sidebar{display:none}.refill-game--focused .game-hud{min-height:46px}.player-hub-panel{min-height:min(620px,100svh - 130px)}}@media (max-width:800px){.refill-game--focused{padding-inline:10px}.refill-game--focused .game-hud__challenge{display:none}.refill-game--focused .game-score-rule{margin-left:auto;font-size:8px}.refill-game--focused .game-score-rule strong{font-size:12px}.player-hub-panel{border-radius:22px;gap:20px;min-height:calc(100svh - 124px);margin-top:3px;padding:22px 16px}.player-hub-panel__intro{grid-template-columns:44px minmax(0,1fr);gap:12px}.player-hub-panel__icon{border-radius:13px;width:44px;height:44px}.player-hub-panel__icon svg{width:22px;height:22px}.player-hub-panel h2{font-size:31px}.player-hub-panel__intro p{font-size:13px}.player-leaderboards{grid-template-columns:1fr}.purifier-reward .cup-assembly{width:190px;top:0}.purifier-reward .cup-progress-card{width:min(232px,64vw);height:74px;top:166px}}@media (max-width:480px){.player-hub-group-form>div{grid-template-columns:1fr}.player-hub-group-form button,.player-hub-create-group,.player-hub-return{width:100%}}@media (max-height:800px) and (min-width:801px){.purifier-reward .cup-assembly{width:166px;top:0}.purifier-reward .cup-progress-card{width:216px;height:70px;top:146px;transform:translate(-50%)}.player-hub-sidebar{gap:9px;padding:11px}.player-hub-nav button,.player-hub-nav a{min-height:44px}.player-hub-progress{padding:10px}}@media (forced-colors:active){.player-hub-sidebar,.player-hub-panel,.player-hub-setting-card,.player-hub-group-form,.player-leaderboards>section{border:2px solid canvastext}.player-hub-nav button[aria-current=page]{border:2px solid highlight}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}
