:root{--ink:#1c1d28;--muted:#747383;--line:#e9e8ee;--purple:#5d45d8;--lav:#eeebff;--lime:#dafa62;--orange:#ff9f54;--bg:#f6f5fb}*{box-sizing:border-box}body{margin:0;background:linear-gradient(120deg,#efedf9,#faf9fd 50%,#f3f2fb);font-family:'DM Sans',sans-serif;color:var(--ink)}button,input,textarea{font:inherit}button{cursor:pointer;border:0}.app{width:min(100%,430px);margin:auto;min-height:100vh;background:var(--bg);position:relative;overflow:hidden;box-shadow:0 0 55px #5343a122}.topbar{padding:22px;background:var(--purple);color:#fff}.brand-row,.hero,.score-head,.section-head{display:flex;justify-content:space-between;align-items:center}.brand{font:700 18px 'Space Grotesk'}.brand small{display:block;font:500 11px 'DM Sans';opacity:.72;margin-top:2px}.lang{background:#ffffff1c;color:#fff;padding:7px 9px;border-radius:9px;font-size:11px}.lang b{background:#fff;color:var(--purple);padding:2px 5px;border-radius:5px}.hero{align-items:flex-end;margin-top:22px}.hero h1{font:700 31px/1.03 'Space Grotesk';margin:0;letter-spacing:-1.6px}.hero p{font-size:12px;opacity:.77;margin:9px 0 0}.hero-emoji{font-size:68px;transform:rotate(-8deg)}main{padding:16px 16px 96px}.score-card,.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:15px 16px;box-shadow:0 8px 22px #33257c09}.eyebrow{font-size:11px;letter-spacing:1px;color:var(--muted);font-weight:700}.score{font:700 34px 'Space Grotesk';color:var(--purple)}.score span{font:500 13px 'DM Sans';color:var(--muted)}.progress{height:8px;background:#eae8f2;border-radius:9px;margin:13px 0 8px;overflow:hidden}.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--orange),var(--lime));border-radius:9px}.score-foot{display:flex;justify-content:space-between;font-size:11px;color:var(--muted)}.tabs{display:flex;gap:3px;background:#e9e8f1;border-radius:12px;padding:4px;margin:16px 0}.tab{flex:1;padding:9px 5px;border-radius:9px;background:transparent;color:var(--muted);font-size:12px;font-weight:600}.tab.active{background:#fff;color:var(--ink);box-shadow:0 2px 7px #27203d10}.section-head{margin:18px 2px 10px}.section-head h2{font:600 17px 'Space Grotesk';margin:0}.section-head span{font-size:11px;color:var(--muted)}.task-list{display:grid;gap:8px}.task{display:flex;align-items:center;gap:11px;padding:12px 13px;border:1px solid var(--line);background:#fff;border-radius:14px;width:100%;text-align:left}.task.done{background:#fbfff0;border-color:#edf4bf}.dot{width:20px;height:20px;border-radius:50%;border:2px solid #b5b4bf;display:grid;place-items:center;flex:none;color:#fff;font-size:11px}.done .dot{background:#77a83e;border-color:#77a83e}.task-main{min-width:0;flex:1}.task-title{font-size:12px;font-weight:700;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.task-meta{font-size:10px;color:var(--muted);margin-top:3px;display:block}.points{font:700 12px 'Space Grotesk';color:var(--purple)}.qr-btn{width:100%;padding:14px;border-radius:15px;background:var(--ink);color:#fff;font-size:13px;font-weight:700;margin-top:15px}.card{margin-top:14px}.card h3{font:600 15px 'Space Grotesk';margin:0 0 6px}.card p{color:var(--muted);font-size:12px;line-height:1.55;margin:0}.rank-row{display:flex;align-items:center;gap:11px;padding:11px 0;border-bottom:1px solid var(--line)}.rank-row:last-child{border:0}.rank-num{width:24px;text-align:center;font:700 13px 'Space Grotesk';color:var(--muted)}.avatar{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--lav)}.rank-name{flex:1;font-size:12px;font-weight:600}.rank-points{font:700 13px 'Space Grotesk'}.bottom{position:absolute;bottom:0;left:0;right:0;padding:10px 15px 14px;background:#ffffffee;backdrop-filter:blur(12px);border-top:1px solid var(--line);display:flex;justify-content:space-around}.nav{background:transparent;color:#9897a7;font-size:10px;display:flex;flex-direction:column;align-items:center;gap:4px;padding:3px 15px}.nav.active{color:var(--purple);font-weight:700}.nav strong{font-size:20px;line-height:1}.modal-wrap{position:fixed;inset:0;background:#17132d88;display:none;align-items:flex-end;justify-content:center;z-index:10}.modal-wrap.show{display:flex}.modal{width:min(100%,430px);background:#fff;border-radius:24px 24px 0 0;padding:22px 20px 28px}.modal-head{display:flex;justify-content:space-between;align-items:center}.modal h2{font:600 20px 'Space Grotesk';margin:0}.close{background:#f2f1f7;border-radius:50%;width:30px;height:30px;color:var(--muted)}.modal label{display:block;font-size:11px;color:var(--muted);font-weight:600;margin:16px 0 6px}.modal input,.modal textarea{width:100%;border:1px solid var(--line);border-radius:11px;padding:12px 13px;outline:0}.primary,.secondary{width:100%;padding:13px;border-radius:12px;margin-top:18px;font-weight:700}.primary{background:var(--purple);color:#fff}.secondary{background:var(--lav);color:var(--purple);margin-top:9px}.qr-box{margin:18px auto 8px;width:170px;height:170px;border-radius:17px;background:repeating-linear-gradient(45deg,#17152b 0 4px,#fff 4px 8px);border:15px solid #fff;box-shadow:0 0 0 1px var(--line);position:relative}.qr-box:after{content:'SCAN';position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%);background:#fff;color:var(--purple);padding:5px 7px;border-radius:5px;font-weight:800;font-size:11px}.toast{position:fixed;left:50%;bottom:88px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:11px 15px;border-radius:10px;font-size:12px;opacity:0;pointer-events:none;transition:.25s;z-index:20;white-space:nowrap}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}@media(min-width:600px){.app{margin:28px auto;border-radius:28px;min-height:calc(100vh - 56px)}.modal-wrap{align-items:center}.modal{border-radius:24px}}
.modal{max-height:90dvh;overflow:auto}.modal-wrap{padding:12px}.bottom{position:fixed;max-width:430px;margin:auto}.task-title{white-space:normal}.task-meta{line-height:1.5}.error{color:#ad233d;font-size:13px}select{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;background:white}ol{padding-left:20px;font-size:13px;line-height:1.8}.help{font-size:12px;color:var(--muted);line-height:1.7}a{color:var(--purple)}.qr-image{display:block;width:220px;max-width:100%;margin:16px auto}.task-main{text-align:left}button:focus-visible,a:focus-visible{outline:3px solid var(--orange);outline-offset:3px}input,textarea,select{font-size:16px!important}.hero h1{letter-spacing:-.5px}.modal h2{font-size:18px}.code{word-break:break-all;padding:12px;background:var(--lav);border-radius:12px}.station{padding:16px;background:#fff;border:1px solid var(--line);border-radius:14px;margin:10px 0}.station h3{font-size:15px;margin:0 0 6px}.station p{font-size:12px;line-height:1.7;color:var(--muted);margin:0}button:disabled{opacity:.5;cursor:wait}header button{min-height:40px}
/* Playful campus chase theme */
:root{--purple:#684ac7;--ink:#302343;--muted:#80758e;--bg:#faf7f2;--lav:#eee7fc;--line:#eee6e0;--lime:#ffe491}
body{background-color:#ece6f5;background-image:radial-gradient(#cfc1e1 1px,transparent 1px);background-size:18px 18px;font-family:ui-rounded,'Arial Rounded MT Bold',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.app{box-shadow:0 15px 65px #37204e20}.topbar{background:#f3edff;color:var(--ink);padding:22px 20px 0;border-bottom:1px solid #e7dcf5}.brand{font-family:inherit;font-size:16px}.brand small{font-family:inherit;font-size:10px;letter-spacing:.4px;color:#76608d;opacity:1;margin-top:5px}.lang{color:var(--purple);background:#fff;border:1px solid #e3d8f4;border-radius:30px;min-width:62px}.hero{margin-top:24px;align-items:center;gap:10px}.hero h1{font-family:inherit;font-size:28px;line-height:1.35;font-weight:900;letter-spacing:-1px}.hero h1 span{color:var(--purple)!important}.hero p{color:#79698a;opacity:1;font-size:11px;line-height:1.7}.hero-sticker{background:#ffda7d;transform:rotate(10deg);border:2px solid #fff;outline:1px dashed #dba953;border-radius:19px;padding:12px 10px;font-size:10px;font-weight:900;letter-spacing:1px;box-shadow:3px 4px 0 #d6c9e9;flex-shrink:0;text-align:center}.hero-sticker b{display:block;font-size:23px;letter-spacing:-1px;margin-top:3px}.chase-scene{position:relative;margin:20px -5px 0;border-radius:22px;overflow:hidden;border:3px solid white;box-shadow:0 5px 0 #e2d7f2;background:#ece7ff}.chase-scene img{display:block;width:100%;height:auto}.scene-badge{position:absolute;left:12px;top:10px;z-index:1;background:white;padding:5px 8px;border-radius:20px;font-size:8px;font-weight:900;letter-spacing:1px;color:#786294}.motion-toggle{position:absolute;right:9px;bottom:9px;background:#fff;color:var(--purple);border:1px solid #e7dcf5;width:34px;height:34px;border-radius:50%;font-weight:800}.chase-scene .chase-still{display:none}.chase-scene.paused .chase-motion{display:none}.chase-scene.paused .chase-still{display:block}.hero-caption{display:flex;justify-content:center;align-items:center;gap:16px;padding:17px 0;font-size:9px;letter-spacing:2px;font-weight:800;color:#8b76a2}.hero-caption i{color:#c29ce6;font-style:normal}main{padding-top:18px;padding-bottom:105px}.score-card{border-radius:20px;border:1px solid #e8ddf0;box-shadow:0 5px 0 #eee6f4;position:relative}.eyebrow{font-size:12px;color:#574369}.score{color:#684ac7;font-weight:900}.progress{height:9px;margin-top:14px}.progress i{background:linear-gradient(90deg,#a48ae4,#f9c96a);transition:width .6s ease}.tabs{background:#ece5df;margin-top:22px;border-radius:16px;padding:5px}.tab{font-size:13px;padding:11px 5px}.tab.active{background:var(--purple);color:#fff;border-radius:12px;box-shadow:0 3px 0 #4f349d}.section-head{margin:23px 3px 13px}.section-head h2{font-family:inherit;font-size:18px;font-weight:800}.section-head>span{font-size:8px;letter-spacing:1px}.task-list{gap:11px}.task{padding:14px 12px;border-radius:17px;border:1px solid #e8e0d8;box-shadow:0 3px 0 #eee7df;transition:transform .18s,box-shadow .18s}.task:hover{transform:translateY(-2px);box-shadow:0 5px 0 #e5d8f3}.task:active{transform:translateY(2px);box-shadow:none}.dot{width:41px;height:43px;background:#f1eafd;border:0;border-radius:13px;font-size:23px;transform:rotate(-4deg)}.task:nth-child(3n+2) .dot{background:#fff1d7;transform:rotate(4deg)}.task:nth-child(3n) .dot{background:#e9f1e5}.task.done .dot{background:#83a762;color:#fff;font-size:22px}.task-title{font-size:13px;line-height:1.5}.task-meta{font-size:10px}.points{background:#f1eafb;padding:8px;border-radius:10px;font-size:14px}.task.done .points{background:#e7efd8;color:#567c35}.qr-btn{background:var(--purple);box-shadow:0 5px 0 #4e3598;border-radius:17px;min-height:53px;font-size:13px;margin-top:20px;transition:transform .2s}.qr-btn:active{transform:translateY(3px);box-shadow:0 2px 0 #4e3598}.card{background:#fffdf8;box-shadow:none;border-style:dashed;border-color:#dfd1be;margin-top:23px}.card h3{font-family:inherit;font-size:14px}.bottom{border-radius:20px 20px 0 0;box-shadow:0 -5px 20px #58406b0b;padding-bottom:max(14px,env(safe-area-inset-bottom));z-index:3}.nav{min-height:44px;padding:4px 13px}.nav.active{background:#f0e8fd;border-radius:12px}.nav strong{font-size:22px}.modal{background:#fffcf8;border:2px solid #fff}.primary{box-shadow:0 3px 0 #4d3690}.avatar{width:39px;height:39px;font-size:22px}.rank-row:first-child{background:#fff2ce;border-radius:12px;padding:12px 8px}.reward-burst{position:fixed;inset:0;display:grid;place-items:center;pointer-events:none;z-index:30}.reward-burst>span{font-size:50px;font-weight:900;color:#684ac7;text-shadow:3px 3px white;animation:reward-pop 1.5s both}.reward-burst i{position:absolute;left:50%;top:50%;font-size:23px;color:#f8b542;animation:confetti 1.5s both;--angle:calc(var(--i)*30deg)}.reward-burst i:nth-child(odd){color:#ae8bea}@keyframes reward-pop{0%{opacity:0;transform:scale(.3)}25%,65%{opacity:1;transform:scale(1)}100%{opacity:0;transform:translateY(-70px) scale(1.2)}}@keyframes confetti{0%{opacity:1;transform:rotate(var(--angle)) translateX(0)}100%{opacity:0;transform:rotate(var(--angle)) translateX(160px) rotate(150deg)}}
@media(max-width:360px){.hero h1{font-size:24px}.hero-sticker{padding:10px 7px}.topbar{padding-inline:16px}.brand{font-size:14px}.task-meta{font-size:9px}.hero-caption{gap:11px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.chase-scene .chase-motion{display:none!important}.chase-scene .chase-still{display:block!important}.motion-toggle{display:none}.reward-burst{display:none}}