@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@600;700;800;900&family=Nunito:wght@400;600;700;800;900&display=swap');
:root{--dark:#142830;--darker:#101e24;--ink:#20343a;--cream:#f9edd0;--paper:#fff7e4;--gold:#ffca54;--amber:#ed9b3f;--green:#5fe59c;--red:#e65953;--outline:rgba(255,227,164,.27);--sans:'Nunito','Trebuchet MS',Arial,sans-serif;--display:'Barlow Condensed',Impact,'Arial Narrow',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#0b161b;color:#fff;font-family:var(--sans);font-size:16px}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.75}img{max-width:100%;display:block}section[hidden],div[hidden]{display:none!important}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:var(--display);line-height:1.05;letter-spacing:.025em}h2{font-size:clamp(2rem,4vw,3.15rem)}button:focus-visible,input:focus-visible{outline:4px solid #78ecff;outline-offset:3px}.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:12px;border:0;border-radius:12px;padding:17px 24px;min-height:58px;font-family:var(--display);font-weight:800;font-size:22px;letter-spacing:.03em;text-align:center;transition:transform .14s,filter .16s,box-shadow .16s;text-decoration:none;box-shadow:0 5px 0 rgba(0,0,0,.3)}.btn:not(:disabled):hover{transform:translateY(-3px);filter:brightness(1.09);box-shadow:0 8px 0 rgba(0,0,0,.30)}.btn:not(:disabled):active{transform:translateY(2px);box-shadow:0 2px 0 rgba(0,0,0,.3)}.btn-primary{background:linear-gradient(180deg,#76ef9c,#2bbf77);color:#10322a;border:2px solid #c3ffca}.btn-gold{background:linear-gradient(180deg,#ffe58d,#f9af3b);color:#3b2a12;border:2px solid #ffedaa}.btn-outline{background:rgba(14,31,38,.65);color:#fff6dc;border:2px solid #e0bf81}.wide{width:100%}.eyebrow{display:inline-block;color:#ffdf86;font-family:var(--display);font-size:18px;font-weight:800;letter-spacing:.07em}.splash{min-height:100svh;position:relative;display:flex;align-items:center;justify-content:center;padding:24px}.splash-academic{background:radial-gradient(circle at 80% 10%,#eceff4 0,#e4e8ee 55%,#bdc6d0 100%);color:#17252e}.academic-paper{position:relative;background:#fff;width:min(900px,100%);padding:clamp(24px,4vw,48px);border-radius:17px;border:1px solid #d8d9dc;box-shadow:0 20px 90px #202d4338;text-align:center;overflow:hidden}.academic-paper:before{content:'';position:absolute;top:0;left:0;right:0;height:9px;background:#ad1e22}.academic-pill{color:#9c1f27;font-size:11px;letter-spacing:.16em;font-weight:900}.uvm-logo{width:min(600px,94%);max-height:160px;object-fit:contain;margin:24px auto 20px}.red-rule{height:2px;background:linear-gradient(90deg,transparent,#b51e23,transparent);margin:14px auto 25px;max-width:550px}.academic-label{font-size:11px;color:#79838d;font-weight:900;letter-spacing:.2em;margin:0 0 8px}.academic-paper h1{font-size:clamp(25px,4.5vw,42px);font-weight:900;color:#151a21;letter-spacing:0;margin-bottom:10px}.academic-activity{font-size:clamp(14px,2.4vw,19px);font-weight:800;color:#ad1e22}.academic-names{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:660px;margin:24px auto;text-align:left}.academic-names p{display:grid;gap:8px;margin:0;border:1px solid #e5e7eb;border-radius:10px;background:#f8f8fa;padding:15px;font-weight:900;font-size:12px}.academic-names span{letter-spacing:.1em;color:#a9232b;font-size:10px}.academic-go{max-width:390px}.academic-note{font-size:12px;color:#75818b;margin:16px 0 4px}.splash-progress{position:absolute;bottom:0;left:0;right:0;height:7px;background:#e4e4e4}.splash-progress span{display:block;width:0;height:100%;background:#c3242e;transition:width 4.7s linear}.splash-game{overflow:hidden;background:#0f1d25}.splash-game-art{position:absolute;inset:0;background-image:linear-gradient(90deg,#102129f7 0%,#102129ea 33%,#10212964 70%),url('wasteland-intro.webp');background-position:center,right center;background-size:cover;filter:saturate(1.1)}.splash-game:after{content:'';pointer-events:none;position:absolute;inset:0;background:linear-gradient(0deg,#0d171fd9,transparent 40%);box-shadow:inset 0 0 130px #06151add}.splash-game-content{position:relative;z-index:2;max-width:1000px;width:100%;text-shadow:0 4px 12px #111}.splash-game-content h2{font-size:clamp(68px,10vw,145px);max-width:850px;color:#f9e2a1;margin:15px 0;text-shadow:4px 7px 0 #293534,0 0 42px #d96d2490}.splash-game-content h2 span{display:block;color:#f4ad3b}.splash-game-content p{font-size:clamp(20px,3.2vw,31px);max-width:640px;font-weight:900}.splash-actions{display:flex;gap:14px;flex-wrap:wrap;margin:38px 0 25px}.splash-game-content small{font-weight:900;letter-spacing:.09em;color:#ffc86d}.app{min-height:100vh;background:radial-gradient(circle at 82% 0%,#315253,transparent 44%),linear-gradient(145deg,#152d36,#0e1e25 70%)}.header{max-width:1300px;min-height:94px;padding:16px 24px;display:flex;justify-content:space-between;align-items:center;gap:18px;margin:0 auto}.logo-mini{display:flex;align-items:center;gap:15px}.vault-icon{display:grid;place-items:center;border:3px solid var(--gold);color:var(--gold);width:58px;height:58px;border-radius:50%;font:900 29px var(--display);box-shadow:0 0 0 3px #101e24,0 0 0 5px #7b8a63}.logo-mini strong{display:block;font-family:var(--display);font-size:clamp(21px,2.5vw,32px);line-height:1;color:#f7deb0}.logo-mini em{font-style:normal;color:#fbb94a}.logo-mini small{font-size:10px;font-weight:900;color:#a8c2b4;letter-spacing:.09em}.header-actions{display:flex;align-items:center;gap:12px}.player-tag{max-width:185px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;background:#28464b;border:1px solid #507a76;border-radius:8px;padding:10px 12px;font-weight:800;font-size:12px}.sound-button{display:flex;align-items:center;gap:8px;background:#22373b;border:2px solid #b1a276;color:#f0dfb1;border-radius:10px;min-height:48px;padding:8px 14px;font-family:var(--display);font-size:17px;font-weight:900}.sound-button.on{background:#28644e;border-color:#7ae8a3;color:#d2ffdd}.sound-button span:first-child{font-size:24px}.game-container{max-width:1300px;margin:auto;padding:0 24px 36px}.notice-demo{background:#fff0c9;color:#5c3e09;border-radius:12px;padding:12px 16px;font-weight:800;margin:8px 0 18px}.status-strip{display:grid;grid-template-columns:1fr 1fr 1fr;position:relative;gap:12px;background:#0b1b21;border:2px solid #6c7e6e;border-radius:15px;padding:15px 18px 24px;margin:0 0 20px;box-shadow:0 12px 24px #07151b55}.status-strip>div:not(.status-bar){display:flex;align-items:center;justify-content:center;gap:16px;border-right:1px solid #3d5960;min-height:30px}.status-strip>div:nth-child(3){border:0}.status-strip span{font-family:var(--display);font-size:15px;letter-spacing:.05em;color:#bcd2be}.status-strip strong{font-family:var(--display);font-size:29px;color:#ffcd60;line-height:1}.status-bar{height:6px;background:#2e4549;position:absolute;bottom:0;left:0;right:0;border-radius:0 0 12px 12px;overflow:hidden}.status-bar span{display:block;width:0%;height:100%;background:linear-gradient(90deg,#5ce49a,#eaf684);transition:width .4s}.layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:20px;align-items:start}.game-panel,.right-column{min-width:0}.game-panel{border:3px solid #9a9b75;background:#20343b;border-radius:17px;box-shadow:0 13px 28px #05131780, inset 0 0 0 3px #20383a;overflow:hidden}.panel-head{display:flex;justify-content:space-between;align-items:center;background:linear-gradient(180deg,#4a5c5a,#304848);padding:14px 21px;border-bottom:2px solid #8d9570;font:900 18px var(--display);color:#fff4c9;letter-spacing:.065em}.panel-led{width:12px;height:12px;background:#67f5ae;border-radius:50%;box-shadow:0 0 14px #67f5ae}.screen{min-height:500px;padding:24px;position:relative;background:linear-gradient(150deg,#20373b,#17282f)}.screen h2{color:#ffe2a0;text-shadow:2px 3px #092026;margin:8px 0 17px}.screen p{line-height:1.5}.loading-game{display:grid;place-items:center;min-height:350px}.error-msg{margin:0;padding:14px 20px;color:#fff;background:#af3d3e;font-weight:800}.right-column{border:2px solid #72836f;border-radius:15px;overflow:hidden;background:#162b30}.side-title{display:flex;align-items:center;gap:9px;padding:16px;background:#33494b;border-bottom:2px solid #829278;color:#ffe4a5;font:900 20px var(--display)}.side-title button{margin-left:auto;background:#172d34;color:#f5dda4;border:1px solid #8d9c83;border-radius:7px;font-size:23px;width:36px;height:36px}.leaderboard{padding:8px 12px}.rank-row{display:flex;align-items:center;gap:8px;padding:13px 4px;border-bottom:1px solid #3d5454;font-weight:800;font-size:13px}.rank-position{font-size:20px;min-width:30px}.rank-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rank-row strong{color:#ffdb78;white-space:nowrap}.empty-ranking{text-align:center;padding:24px 8px;color:#f5dba0;line-height:1.7;font-weight:900}.empty-ranking small{font-size:11px;color:#aec5bf}.help-card{background:#ffefc9;color:#273b3e;padding:18px;border-top:4px solid #d4aa56}.help-card span{font:900 20px var(--display)}.help-card p{margin:10px 0 0;font-size:13px;line-height:1.5}.footer{display:flex;justify-content:space-between;gap:15px;max-width:1300px;margin:10px auto 0;padding:12px 24px 30px;color:#859e9e;font-size:11px;letter-spacing:.04em;font-weight:800}
/* Login */
.welcome-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;min-height:455px}.welcome-copy h2{font-size:clamp(37px,4.5vw,55px)}.welcome-copy p{font-size:18px;color:#e1e6d7}.welcome-copy strong{color:#ffdb8e}.input-label{display:block;font:900 21px var(--display);color:#f7d585;margin:20px 0 9px}.welcome-copy input{display:block;width:100%;border:3px solid #c6b48a;border-radius:11px;background:#fff9e9;color:#18282e;padding:15px 16px;font-size:19px;font-weight:900;margin-bottom:14px}.minor-note{font-size:12px!important;opacity:.75}.welcome-art{width:100%;border:3px solid #bfa369;border-radius:18px;box-shadow:0 14px 23px #0008;object-fit:cover;aspect-ratio:1.1}
/* Map */
.map-top{display:grid;grid-template-columns:minmax(0,1fr) 122px;align-items:center;gap:12px;background:radial-gradient(circle at 85% 20%,#45684d,transparent 58%);border-bottom:2px solid #476368;margin:-24px -24px 20px;padding:24px 24px 12px;min-height:165px}.map-top h2{margin:7px 0}.map-top p{margin-bottom:0;color:#d5e2d8;font-weight:800}.map-mascot{width:115px;height:155px;object-fit:cover;object-position:50% 20%;border-radius:52% 52% 10px 10px;filter:drop-shadow(0 7px 6px #0009)}.mission-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:22px}.mission-tile{background:#fceccd;border:3px solid #8d7d5a;border-radius:13px;overflow:hidden;color:#1c3539;box-shadow:0 4px 0 #0a141a}.mission-tile.active{border-color:#75f2a3;box-shadow:0 0 0 2px #366245,0 5px 10px #101b1f}.mission-tile.locked{filter:grayscale(.7);opacity:.65}.mission-tile.completed{border-color:#e5c36d}.mission-art{height:94px;overflow:hidden;position:relative}.mission-art img{width:100%;height:100%;object-fit:cover}.mission-seq{display:grid;place-items:center;position:absolute;top:7px;left:7px;width:34px;height:34px;background:#142d35;color:#ffd27b;border:2px solid #f9d78f;border-radius:50%;font:900 18px var(--display)}.tile-content{padding:10px}.tile-eyebrow{display:block;color:#637468;font:900 11px var(--display);letter-spacing:.06em}.tile-content strong{display:block;font:900 20px var(--display);margin:6px 0 3px}.tile-content small{font-weight:900;color:#54736a;font-size:10px}
/* Lesson */
.step-head{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-bottom:15px}.step-num,.step-type{border-radius:999px;padding:7px 12px;font:900 15px var(--display);letter-spacing:.07em}.step-num{background:#344c50;border:1px solid #8b9c8d;color:#f5dca0}.step-type{background:#ffe3a0;color:#433019}.lesson-screen h2,.quiz-screen h2{font-size:clamp(32px,4.3vw,48px)}.learning-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:13px;margin-bottom:15px}.mission-feature{width:100%;height:190px;object-fit:cover;border:3px solid #7b9489;border-radius:13px}.teacher-note{display:flex;align-items:center;gap:10px;background:#fef2d4;border:3px solid #d4a66a;padding:15px;border-radius:14px;color:#24343a}.teacher-emoji{font-size:56px;line-height:1}.teacher-note p{font-size:clamp(15px,1.7vw,19px);line-height:1.4;margin:0;font-weight:800}.example-card{background:var(--paper);color:#273a3c;border:4px solid #c7a46d;border-radius:17px;padding:18px 20px;box-shadow:inset 0 0 0 2px #fff8e2}.example-card h3{color:#38555a;font-size:26px;margin:0 0 7px}.example-card p{font-size:17px;margin:7px 0 12px;font-weight:800}.resource-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;padding:15px 4px}.object-group{border:2px solid #bea77d;background:#fffdfa;border-radius:10px;min-width:70px;max-width:150px;flex:1;text-align:center;padding:9px 7px}.emoji-resources{display:flex;flex-wrap:wrap;justify-content:center;gap:2px}.emoji-resources span{font-size:22px;line-height:1.2}.object-group small{display:block;font:900 11px var(--display);color:#847452;margin-top:6px}.equation{width:fit-content;margin:8px auto;border:3px solid #b68333;background:#ffdd7b;color:#21343a;padding:6px 25px;font:900 clamp(31px,5vw,44px) var(--display);border-radius:12px}.example-card .example-summary{text-align:center;margin:8px 0 0;font-size:20px;color:#326c4e}.tip{background:#2f5150;color:#e7f4e4;border-left:6px solid #ffe28b;border-radius:8px;padding:12px 14px;font-weight:800;margin:15px 0 18px}
/* Question */
.question-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:14px;margin-bottom:18px}.quiz-illustration{background:#284a4b;border:3px solid #759689;border-radius:14px;overflow:hidden;display:flex;flex-direction:column}.quiz-illustration img{height:170px;object-fit:cover;width:100%}.quiz-illustration span{display:block;padding:9px;color:#fbdb88;font:900 17px var(--display);text-align:center}.question-card{background:#fff1d0;color:#26373e;padding:20px;border-radius:14px;border:4px solid #d5a963;display:flex;flex-direction:column;justify-content:center}.question-tag{color:#926326;font:900 18px var(--display)}.question-card p{font-size:clamp(19px,2vw,24px);line-height:1.4;margin:12px 0 0;font-weight:900}.choices{display:grid;grid-template-columns:1fr 1fr;gap:14px}.choice{display:flex;align-items:center;justify-content:center;gap:22px;min-height:82px;border-radius:14px;border:3px solid #bbded6;background:linear-gradient(180deg,#3c8199,#285b75);color:#fff;box-shadow:0 6px 0 #102731;font:900 42px var(--display);text-shadow:2px 3px #254653;transition:transform .15s,filter .15s}.choice:nth-child(2){background:linear-gradient(180deg,#4979a3,#2e527a)}.choice:nth-child(3){background:linear-gradient(180deg,#477a83,#27626c)}.choice:nth-child(4){background:linear-gradient(180deg,#597a9e,#3e6184)}.choice:hover:not(:disabled){filter:brightness(1.15);transform:translateY(-2px)}.choice>span{display:grid;place-items:center;width:41px;height:41px;background:#ffffff30;border-radius:10px;font:900 22px var(--display)}.choice.right,.choice.real-answer{background:linear-gradient(180deg,#69d964,#288b59)!important;border-color:#c9ffa4}.choice.wrong{background:linear-gradient(180deg,#d67366,#ab403b)!important;border-color:#ffd6ce}.friendly-note{text-align:center;color:#c7dbc9;font-weight:800;margin:18px 0}.feedback-box{border-radius:12px;border:3px solid #98eaaa;padding:15px;background:#1d5b49;margin:17px 0;color:#fff}.feedback-box.try-again{border-color:#f2c66e;background:#675130}.feedback-title{font:900 28px var(--display);color:#ffe9a1}.feedback-box p{margin:7px 0 0;font-size:16px;font-weight:800}
/* Game end */
.finish-screen{background:#1c353d;border-radius:13px;overflow:hidden}.victory-banner{width:100%;height:240px;object-fit:cover}.finish-content{padding:22px;text-align:center}.finish-content h2{font-size:clamp(44px,6vw,65px);color:#ffe187}.finish-content>p{font-weight:800;font-size:18px}.finish-numbers{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}.finish-numbers>div{display:grid;gap:7px;background:#f9e9c6;color:#2a3837;border-radius:12px;padding:18px 10px;border:3px solid #bf905b}.finish-numbers span{font:900 19px var(--display)}.finish-numbers strong{font:900 42px var(--display)}.finish-content .finish-tip{font-size:15px;color:#bde7bf;margin:15px 0 22px}
@media(max-width:1060px){.layout{grid-template-columns:1fr}.right-column{display:grid;grid-template-columns:1fr 1fr;gap:0}.side-title{grid-column:1/-1}.help-card{border-top:none;border-left:3px solid #d4aa56}.leaderboard{max-height:315px;overflow-y:auto}.header{min-height:80px}}
@media(max-width:680px){.splash{padding:14px}.academic-paper{padding:26px 18px 33px}.uvm-logo{margin:26px auto;max-height:100px}.academic-names{grid-template-columns:1fr;gap:9px;margin:15px 0}.academic-names p{padding:10px}.splash-game-art{background-image:linear-gradient(0deg,#0b1c23f2 0%,#10212999 85%),url('wasteland-intro.webp');background-position:center;background-size:cover}.splash-game-content{text-align:center}.splash-game-content h2{font-size:clamp(59px,13vw,90px)}.splash-actions{justify-content:center;margin:24px auto}.splash-actions .btn{width:100%}.header{padding:12px 14px}.vault-icon{width:43px;height:43px;font-size:23px}.logo-mini{gap:10px}.logo-mini strong{font-size:21px}.logo-mini small{font-size:8px}.player-tag{display:none}.sound-button{padding:7px 8px;min-height:40px}.sound-button span:last-child{font-size:13px}.game-container{padding:0 10px 20px}.status-strip{gap:7px;padding:12px 5px 18px}.status-strip>div:not(.status-bar){flex-direction:column;gap:4px}.status-strip span{font-size:12px}.status-strip strong{font-size:22px}.panel-head{padding:12px;font-size:16px}.screen{padding:15px}.welcome-grid{grid-template-columns:1fr}.welcome-art{max-height:230px;object-fit:cover;object-position:center 43%}.welcome-copy h2{font-size:40px}.map-top{margin:-15px -15px 15px;padding:17px 12px 8px;grid-template-columns:1fr 80px}.map-mascot{width:80px;height:110px}.map-top h2{font-size:33px}.map-top p{font-size:14px}.mission-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.mission-art{height:85px}.tile-content{padding:8px}.tile-content strong{font-size:18px}.tile-content small{font-size:9px}.learning-layout,.question-layout{grid-template-columns:1fr}.mission-feature{height:150px}.teacher-note{min-height:90px}.teacher-emoji{font-size:46px}.teacher-note p{font-size:17px}.example-card{padding:14px 9px}.resource-grid{gap:5px}.object-group{min-width:67px;padding:7px 4px}.emoji-resources span{font-size:20px}.quiz-illustration img{height:145px}.quiz-illustration span{padding:6px}.question-card{padding:15px}.choice{min-height:76px;gap:10px;font-size:38px}.right-column{display:block}.leaderboard{max-height:none}.help-card{border-left:0;border-top:3px solid #d4aa56}.footer{display:block;text-align:center;font-size:10px}.footer span{display:block;margin-top:8px}.btn{font-size:20px;padding:14px;min-height:55px}}
@media(max-width:380px){.logo-mini strong{font-size:18px}.logo-mini small{display:none}.sound-button span:last-child{font-size:11px}.step-head{flex-wrap:wrap}.choices{gap:8px}.choice{font-size:34px}.tile-content strong{font-size:16px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;scroll-behavior:auto!important;transition:none!important}}