:root{color-scheme:dark;--bg-deep: #0d0619;--bg: #150a26;--surface: rgba(255, 255, 255, .06);--surface-solid: #241340;--surface-strong: rgba(255, 255, 255, .1);--line: rgba(255, 255, 255, .14);--line-strong: rgba(255, 255, 255, .3);--text: #f6f2ff;--text-soft: #c3b6dc;--text-dim: #9385b4;--magenta: #ff3d97;--violet: #a855f7;--cyan: #22d3ee;--lime: #a3e635;--gold: #fbbf24;--easy: #22c55e;--medium: #eab308;--hard: #f97316;--impossible: #ef4444;--good: #22c55e;--bad: #f43f5e;--grad-hero: linear-gradient(135deg, #ff3d97 0%, #a855f7 55%, #22d3ee 100%);--grad-button: linear-gradient(135deg, #ff3d97, #a855f7);--grad-gold: linear-gradient(135deg, #fde68a, #f59e0b);--radius: 18px;--radius-lg: 26px;--radius-pill: 999px;--shadow: 0 18px 40px rgba(0, 0, 0, .45);--shadow-soft: 0 8px 24px rgba(0, 0, 0, .32);--glow: 0 0 32px rgba(168, 85, 247, .45);--font: "Outfit", ui-rounded, system-ui, -apple-system, "Segoe UI", sans-serif;--font-display: "Space Grotesk", var(--font);--font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;--gutter: clamp(1rem, 4vw, 2rem);--page-max: 900px}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:100%}body{min-height:100dvh;font-family:var(--font);font-size:16px;line-height:1.55;color:var(--text);background:radial-gradient(1200px 700px at 12% -10%,rgba(255,61,151,.26),transparent 60%),radial-gradient(900px 600px at 92% 4%,rgba(34,211,238,.18),transparent 55%),radial-gradient(800px 800px at 50% 110%,rgba(168,85,247,.28),transparent 60%),linear-gradient(180deg,var(--bg-deep),var(--bg) 40%,var(--bg-deep));background-attachment:fixed;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}img,svg,video,canvas{display:block;max-width:100%}input,button,textarea,select{font:inherit;color:inherit}button{cursor:pointer}h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.12;letter-spacing:-.01em}a{color:var(--cyan)}:focus-visible{outline:3px solid 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env(safe-area-inset-bottom));text-align:center}.stack{display:grid;gap:clamp(.9rem,3vw,1.3rem);width:100%}.text-centre{text-align:center}.hero-title{font-size:clamp(2.4rem,11vw,4.6rem);line-height:.98;letter-spacing:-.03em;background:var(--grad-hero);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 6px 24px rgba(255,61,151,.35))}.title-lg{font-size:clamp(1.7rem,6.5vw,2.6rem)}.title-md{font-size:clamp(1.3rem,5vw,1.8rem)}.title-sm{font-size:clamp(1.05rem,4vw,1.25rem)}.lede{font-size:clamp(1rem,3.8vw,1.15rem);color:var(--text-soft)}.muted{color:var(--text-soft)}.dim{color:var(--text-dim);font-size:.88rem}.mono{font-family:var(--font-mono);letter-spacing:.06em}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:52px;padding:.85rem 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var(--line);box-shadow:none}.btn.ghost:hover:not(:disabled){background:var(--surface-strong);box-shadow:var(--shadow-soft)}.btn.gold{background:var(--grad-gold);color:#3b2504}.btn.good{background:linear-gradient(135deg,#34d399,#16a34a)}.btn.bad{background:linear-gradient(135deg,#fb7185,#e11d48)}.btn.small{min-height:44px;padding:.5rem 1rem;font-size:.92rem}.card{padding:clamp(1.1rem,4.5vw,1.8rem);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);backdrop-filter:blur(14px);width:100%}.card.tight{padding:clamp(.8rem,3vw,1.1rem)}.card.solid{background:var(--surface-solid);backdrop-filter:none}.card.glow{border-color:#ff3d9773;box-shadow:var(--shadow),0 0 40px #ff3d9740}.progress-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap}.progress-count{font-family:var(--font-display);font-size:clamp(2.2rem,9vw,3.2rem);line-height:1;font-variant-numeric:tabular-nums;background:var(--grad-hero);-webkit-background-clip:text;background-clip:text;color:transparent}.progress-rail{display:block;height:14px;margin-top:.7rem;background:#ffffff17;border-radius:var(--radius-pill);overflow:hidden}.progress-fill{display:block;height:100%;border-radius:var(--radius-pill);background:var(--grad-hero);transition:width .6s cubic-bezier(.34,1.2,.64,1)}.band{display:grid;gap:.6rem}.band-head{display:flex;align-items:center;gap:.6rem;font-family:var(--font-display);font-size:1.05rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--band-colour, var(--text))}.band-head 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.tile-state{color:color-mix(in srgb,var(--band-colour, var(--good)) 85%,#fff)}.challenge-tile.found:not(.done){border-color:var(--line-strong);border-style:dashed}.challenge-tile.just-solved{animation:tile-pop .7s cubic-bezier(.34,1.56,.64,1)}@keyframes tile-pop{0%{transform:scale(1)}40%{transform:scale(1.14) rotate(-3deg)}to{transform:scale(1)}}.chip{display:inline-flex;align-items:center;gap:.35rem;padding:.3rem .8rem;font-size:.82rem;font-weight:600;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);white-space:nowrap}.chip.easy{color:var(--easy);border-color:color-mix(in srgb,var(--easy) 45%,transparent)}.chip.medium{color:var(--medium);border-color:color-mix(in srgb,var(--medium) 45%,transparent)}.chip.hard{color:var(--hard);border-color:color-mix(in srgb,var(--hard) 45%,transparent)}.chip.impossible{color:var(--impossible);border-color:color-mix(in srgb,var(--impossible) 45%,transparent)}.chip.good{color:var(--good);border-color:color-mix(in srgb,var(--good) 45%,transparent)}.chip.bad{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 45%,transparent)}.field{display:grid;gap:.4rem;width:100%}.field label{font-size:.9rem;font-weight:600;color:var(--text-soft)}.input{width:100%;min-height:54px;padding:.8rem 1.1rem;font-size:1.05rem;background:#00000047;border:2px solid var(--line);border-radius:var(--radius);transition:border-color .14s ease,box-shadow .14s ease}.input::placeholder{color:var(--text-dim)}.input:focus{border-color:var(--violet);box-shadow:0 0 0 4px #a855f733;outline:none}.input.answer{font-family:var(--font-mono);font-size:clamp(1.2rem,6vw,1.7rem);letter-spacing:.16em;text-align:center;text-transform:uppercase}.help{font-size:.85rem;color:var(--text-dim)}.check{display:flex;align-items:flex-start;gap:.8rem;padding:1rem;background:var(--surface);border:2px solid var(--line);border-radius:var(--radius);cursor:pointer;text-align:left;font-weight:600}.check input{flex:0 0 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span:before{bottom:-3px;left:-3px;border-right:0;border-top:0;border-radius:0 0 0 22px}.scan-frame span:after{bottom:-3px;right:-3px;border-left:0;border-top:0;border-radius:0 0 22px}.scan-laser{position:absolute;left:6%;right:6%;height:3px;border-radius:999px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);box-shadow:0 0 16px 3px #22d3ee99;animation:laser 2.4s ease-in-out infinite}@keyframes laser{0%,to{top:10%}50%{top:88%}}.scanner-standby{height:100%;display:grid;align-content:center;justify-items:center;gap:.7rem;padding:1.25rem;text-align:center;overflow-y:auto}.scanner-standby .standby-emoji{font-size:clamp(2.6rem,14vw,4.4rem);line-height:1}.scanner-foot{display:grid;gap:.6rem;padding:.9rem var(--gutter) calc(.9rem + env(safe-area-inset-bottom));border-top:1px solid var(--line);text-align:center}.scan-alert{padding:.7rem .9rem;font-weight:700;color:#fff;background:var(--bad);border-radius:var(--radius)}.scan-tips{display:grid;gap:.4rem;margin:0;padding:0;list-style:none;text-align:left}.scan-tips li{display:flex;align-items:center;gap:.55rem;padding:.5rem .85rem;font-weight:600;font-size:.92rem;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill)}.verdict{position:fixed;inset:0;z-index:200;display:grid;grid-template-columns:minmax(0,1fr);justify-items:center;align-content:center;align-content:safe center;gap:1rem;padding:1.25rem var(--gutter) calc(1.25rem + env(safe-area-inset-bottom));text-align:center;overflow-y:auto;background:#090412eb;backdrop-filter:blur(10px)}.verdict.good{background:radial-gradient(circle at 50% 30%,#22c55e59,#090412f2 70%)}.verdict.bad{background:radial-gradient(circle at 50% 30%,#f43f5e52,#090412f2 70%)}.verdict.finish{background:radial-gradient(circle at 50% 25%,#fbbf2466,#090412f5 72%)}.verdict-card{width:min(520px,100%);display:grid;justify-items:center;gap:.9rem;padding:clamp(1.4rem,6vw,2.2rem);background:var(--surface-solid);border:1px solid var(--line-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow)}.verdict-emoji{font-size:clamp(3.2rem,16vw,5rem);animation:pop .8s cubic-bezier(.34,1.56,.64,1) both}@keyframes pop{0%{transform:scale(0) rotate(-25deg)}60%{transform:scale(1.2) rotate(6deg)}to{transform:scale(1)}}.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:.6rem;padding:.6rem var(--gutter);padding-top:calc(.6rem + env(safe-area-inset-top));background:#0d0619d1;border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.topbar .brand{font-family:var(--font-display);font-weight:700;letter-spacing:-.01em;margin-right:auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-fab{position:fixed;top:calc(env(safe-area-inset-top) + 10px);right:12px;z-index:40;display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;font-size:1.25rem;background:var(--surface);border:1px solid var(--line);border-radius:50%;backdrop-filter:blur(10px);text-decoration:none;opacity:.75;transition:opacity .14s ease,transform .14s ease}.admin-fab:hover{opacity:1;transform:rotate(25deg)}.tab-row{display:flex;gap:.4rem;overflow-x:auto;padding-bottom:.35rem;scrollbar-width:none}.tab-row::-webkit-scrollbar{display:none}.tab-row .btn{flex:0 0 auto}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}table.data{width:100%;border-collapse:collapse;font-size:.92rem;white-space:nowrap}table.data th,table.data td{padding:.6rem .8rem;text-align:left;border-bottom:1px solid var(--line)}table.data th{font-family:var(--font-display);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);background:#00000040}table.data tr:last-child td{border-bottom:0}table.data td.answer{font-family:var(--font-mono);color:var(--lime)}table.data td.scrambled{font-family:var(--font-mono);color:var(--text-soft)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.7rem}.stat{display:grid;gap:.15rem;padding:.9rem 1rem;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}.stat .stat-value{font-family:var(--font-display);font-size:1.9rem;line-height:1;font-variant-numeric:tabular-nums}.stat .stat-label{font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim)}.feed{display:grid;gap:.4rem;max-height:260px;overflow-y:auto;padding:.7rem;background:#00000040;border:1px solid var(--line);border-radius:var(--radius)}.feed p{padding:.45rem .7rem;font-size:.9rem;background:var(--surface);border-radius:10px;overflow-wrap:anywhere}.loader{min-height:100dvh;display:grid;place-content:center;justify-items:center;gap:1rem;text-align:center}.loader .spinner{width:54px;height:54px;border:5px solid var(--line);border-top-color:var(--magenta);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{background:linear-gradient(90deg,var(--surface),var(--surface-strong),var(--surface));background-size:200% 100%;border-radius:var(--radius);animation:shimmer 1.4s ease-in-out infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1rem}.qr-card{display:grid;justify-items:center;gap:.5rem;padding:1.1rem;background:#fff;color:#12071f;border-radius:var(--radius);break-inside:avoid;text-align:center}.qr-card .qr-brand{font-family:var(--font-display);font-size:.9rem;letter-spacing:.22em;text-transform:uppercase;color:#6b21a8}.qr-card .qr-number{font-family:var(--font-display);font-size:1.8rem;font-weight:700}.qr-card .qr-diff{font-weight:700;letter-spacing:.1em;text-transform:uppercase;font-size:.85rem}.qr-card .qr-scan{font-family:var(--font-display);letter-spacing:.18em;text-transform:uppercase;font-size:.95rem}.qr-card img{width:min(100%,210px);height:auto;image-rendering:pixelated}.print-cards{display:none}@media print{@page{size:A4 portrait;margin:12mm}html,body{background:#fff!important;color:#000!important}body *{visibility:hidden!important;box-shadow:none!important;animation:none!important}.topbar,.admin-fab{display:none!important}.print-cards,.print-cards *{visibility:visible!important}.print-cards{position:absolute;inset:0;display:grid!important;grid-template-columns:1fr 1fr;gap:8mm}.print-cards .qr-card{border:3px solid #12071f;border-radius:10px;height:128mm;align-content:center;padding:6mm;page-break-inside:avoid}.print-cards .qr-card img{width:72mm}.print-cards .qr-number{font-size:22pt}.print-cards .qr-brand{font-size:10pt}.print-cards .qr-diff{font-size:11pt}.print-cards .qr-scan{font-size:12pt}}.sparkles{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}.sparkles span{position:absolute;width:10px;height:14px;border-radius:2px;opacity:.5;animation:drift linear infinite}@keyframes drift{0%{transform:translateY(-12vh) rotate(0)}to{transform:translateY(112vh) rotate(540deg)}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}