:root{--bg: #fff9f0;--fg: #1f1b2e;--muted: #5c5670;--card: #ffffff;--line: #ece4f7;--brand: #5f3dc4;--brand2: #ff6b6b;--ok: #2f9e44;--bad: #e03131;--warn: #f08c00;--radius: 18px;--shadow: 0 6px 22px rgba(60, 30, 120, .1);--font: ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;color-scheme:light dark}@media (prefers-color-scheme: dark){:root{--bg: #15121f;--fg: #f3f0ff;--muted: #b9b2cf;--card: #211c31;--line: #342c4b;--shadow: 0 6px 22px rgba(0,0,0,.35)}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scrollbar-gutter:stable}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.5 var(--font)}body:before{content:"";position:fixed;inset:0;z-index:-1;background:radial-gradient(600px 300px at 10% -5%,rgba(255,107,107,.18),transparent 60%),radial-gradient(500px 300px at 95% 0%,rgba(132,94,247,.18),transparent 60%),radial-gradient(600px 400px at 50% 110%,rgba(32,201,151,.14),transparent 60%)}a{color:var(--brand)}@media (prefers-color-scheme: dark){a{color:#b197fc}}img{max-width:100%}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.skip{position:absolute;left:-999px;top:8px;background:var(--brand);color:#fff;padding:8px 12px;border-radius:10px;z-index:10}.skip:focus{left:8px}:focus-visible{outline:3px solid #ffd43b;outline-offset:2px;border-radius:8px}#app{max-width:980px;margin:0 auto;padding:0 16px env(safe-area-inset-bottom)}.staging-bar{background:repeating-linear-gradient(45deg,#ffd43b,#ffd43b 12px,#fab005 12px 24px);color:#1f1b2e;text-align:center;font-weight:800;padding:4px;font-size:13px}.top{display:flex;align-items:center;justify-content:space-between;padding:14px 0}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--fg);font-weight:800;font-size:20px;letter-spacing:-.3px}.brand b{background:linear-gradient(90deg,var(--brand2),var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent}.top nav{display:flex;gap:6px}.top nav a{text-decoration:none;padding:10px 12px;border-radius:12px;color:var(--fg);font-weight:600;min-height:44px;display:inline-flex;align-items:center}.top nav a:hover{background:var(--line)}.foot{margin:48px 0 24px;text-align:center;color:var(--muted);font-size:14px}.foot nav{display:flex;flex-wrap:wrap;gap:6px 16px;justify-content:center;margin-bottom:6px}.foot a{color:var(--muted)}.hero{text-align:center;padding:18px 0 8px}.hero h1{font-size:clamp(28px,6vw,46px);line-height:1.1;margin:6px 0 10px;letter-spacing:-1px}.grad{background:linear-gradient(90deg,#ff6b6b,#f76707,#845ef7,#20c997);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-date{color:var(--muted);font-weight:600;margin:0}.hero-sub{color:var(--muted);max-width:560px;margin:0 auto 14px}.hero-stats{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:10px 16px;min-width:120px;box-shadow:var(--shadow);display:flex;flex-direction:column}.stat strong{font-size:20px}.stat span{color:var(--muted);font-size:13px}.countdown{font-variant-numeric:tabular-nums}.difficulty{margin-top:12px;color:var(--muted)}.tier{text-transform:capitalize;padding:2px 10px;border-radius:99px;color:#fff}.tier-easy{background:var(--ok)}.tier-medium{background:var(--warn)}.tier-hard{background:var(--bad)}.notice{background:#fff3bf;color:#5c3c00;border-radius:14px;padding:12px 16px;margin:12px 0}.cards{display:grid;grid-template-columns:1fr;gap:12px;margin:22px 0}@media (min-width: 640px){.cards{grid-template-columns:1fr 1fr}}@media (min-width: 900px){.cards{grid-template-columns:1fr 1fr 1fr}}.card{position:relative;display:flex;align-items:center;gap:14px;padding:16px;background:var(--card);border-radius:var(--radius);text-decoration:none;color:var(--fg);border:2px solid transparent;box-shadow:var(--shadow);transition:transform .15s,border-color .15s;min-height:96px;overflow:hidden}.card:before{content:"";position:absolute;inset:0 auto 0 0;width:6px;background:var(--c)}.card:hover,.card:focus-visible{transform:translateY(-2px);border-color:var(--c)}.card-emoji{font-size:34px;width:58px;height:58px;display:grid;place-items:center;border-radius:16px;background:color-mix(in srgb,var(--c) 18%,transparent);flex:none}.card-text{display:flex;flex-direction:column;flex:1;min-width:0}.card-text strong{font-size:18px}.card-text small{color:var(--c-text);font-weight:700}.card-blurb{color:var(--muted);font-size:14px}.card-status{font-weight:800;font-size:14px;background:var(--c-bg);color:#fff;padding:6px 12px;border-radius:99px;flex:none}.card-status.done{background:var(--ok)}.practice-row h2,.achievements h2,.bests h2{font-size:20px;margin:26px 0 10px}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip-link{background:var(--card);border:1px solid var(--line);padding:10px 14px;border-radius:99px;text-decoration:none;color:var(--fg);font-weight:600;min-height:44px;display:inline-flex;align-items:center}.ach-grid{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.ach{background:var(--card);border:1px dashed var(--line);border-radius:14px;padding:10px;display:flex;flex-direction:column;filter:grayscale(.7)}.ach:not(.got) .ach-icon{opacity:.55}.ach.got{opacity:1;border-style:solid;border-color:#ffd43b}.ach-icon{font-size:26px}.ach small{color:var(--muted);font-size:12px}.pb-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:6px}.ad-gap{height:160px}.ad-slot{display:grid;place-items:center;border:2px dashed var(--line);border-radius:12px;color:var(--muted);font-size:12px;margin:0 auto;background:repeating-linear-gradient(135deg,transparent,transparent 10px,rgba(127,127,127,.06) 10px,rgba(127,127,127,.06) 20px)}.ad-banner{width:100%;max-width:728px;height:90px}.ad-rect{width:300px;height:250px}@media (max-width: 480px){.ad-banner{height:100px;max-width:320px}}.game-head{display:flex;align-items:center;gap:10px;margin:6px 0 14px}.game-head h1{font-size:24px;margin:0;flex:1}.back{text-decoration:none;font-size:22px;width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:var(--card);color:var(--fg);box-shadow:var(--shadow)}.chip{background:var(--accent-bg);color:#fff;font-weight:700;padding:4px 12px;border-radius:99px;font-size:13px}.game-body{background:var(--card);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);border-top:6px solid var(--accent)}.how{margin:16px 0;background:var(--card);border-radius:14px;padding:10px 16px}.how summary{cursor:pointer;font-weight:700;min-height:32px}.step{color:var(--muted);font-weight:700;margin:4px 0 10px}.small{font-size:13px;color:var(--muted)}.btn{font:inherit;font-weight:800;border:0;border-radius:14px;padding:12px 18px;min-height:48px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}.btn-primary{background:var(--accent-bg, var(--brand));color:#fff}.btn-ghost{background:transparent;color:var(--fg);border:2px solid var(--line);margin-top:10px}.btn-share{background:linear-gradient(90deg,#ff6b6b,#845ef7);color:#fff;width:100%;font-size:18px}.btn:disabled{opacity:.5;cursor:not-allowed}.cb{margin:14px 0 4px}.cb-label{display:block;font-weight:700;margin-bottom:6px}.cb-row{display:flex;gap:8px}.cb-wrap{position:relative;flex:1}.cb-input{width:100%;font:inherit;font-size:17px;padding:12px 14px;min-height:48px;border-radius:14px;border:2px solid var(--line);background:var(--bg);color:var(--fg)}.cb-input:focus{border-color:var(--accent);outline:none}.cb-list{position:absolute;left:0;right:0;bottom:calc(100% + 4px);margin:0;padding:6px;list-style:none;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);z-index:5;max-height:280px;overflow:auto}.cb-opt{padding:10px 12px;border-radius:10px;cursor:pointer;min-height:44px;display:flex;align-items:center}.cb-opt.active,.cb-opt:hover{background:color-mix(in srgb,var(--accent) 18%,transparent)}.choices{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0}.choice{font:inherit;font-weight:700;padding:14px 10px;min-height:56px;border-radius:14px;border:2px solid var(--line);background:var(--bg);color:var(--fg);cursor:pointer;transition:transform .1s}.choice:hover:not(:disabled){border-color:var(--accent);transform:translateY(-1px)}.choice.correct{background:var(--ok);color:#fff;border-color:var(--ok);opacity:1}.choice.wrong{background:var(--bad);color:#fff;border-color:var(--bad)}.choice:disabled:not(.correct):not(.wrong){opacity:.45}.ladder{list-style:none;padding:0;margin:0;display:grid;gap:8px;counter-reset:r}.rung{counter-increment:r;padding:12px 14px 12px 48px;border-radius:14px;background:var(--bg);position:relative;border:2px solid var(--line)}.rung:before{content:counter(r);position:absolute;left:10px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:var(--line);display:grid;place-items:center;font-weight:800;font-size:14px}.rung.open{border-color:color-mix(in srgb,var(--accent) 50%,transparent)}.rung.open:before{background:var(--accent-bg);color:#fff}.locked{color:var(--muted)}.guesses{list-style:none;padding:0;display:grid;gap:6px;margin:12px 0}.guess{padding:10px 12px;border-radius:12px;background:var(--bg);font-weight:700}.ring-label{font-weight:500;color:var(--muted)}.ring-exact{background:color-mix(in srgb,var(--ok) 25%,transparent)}.flag{display:block;border-radius:10px;box-shadow:0 2px 10px #0000002e;background:#ddd}.lens{width:min(100%,420px);aspect-ratio:4 / 3;margin:0 auto;overflow:hidden;border-radius:16px;box-shadow:var(--shadow)}.flag-lens{width:100%;height:100%;object-fit:cover;transition:filter .5s,transform .5s;border-radius:0}.flag-sm{width:96px;height:72px;object-fit:cover}.tabs{display:flex;gap:6px;margin-bottom:14px}.tab{flex:1;text-align:center;padding:10px;border-radius:12px;background:var(--bg);text-decoration:none;color:var(--fg);font-weight:700;min-height:44px}.tab.active{background:var(--accent-bg);color:#fff}.q-card{display:flex;gap:14px;align-items:center}.q-card h2{font-size:20px;margin:0}.dots{display:flex;gap:6px;justify-content:center;margin-bottom:8px}.dot{width:14px;height:14px;border-radius:50%;background:var(--line)}.dot.cur{background:var(--accent)}.dot.ok{background:var(--ok)}.dot.bad{background:var(--bad)}.minimap{width:100%;max-width:520px;display:block;margin:8px auto;background:#d0ebff;border-radius:12px}.mm-land{fill:#b2f2bb;stroke:#fff;stroke-width:.4}.mm-dot{fill:#e03131}.mm-halo{fill:#e0313140}.postcard{margin:0;padding:10px 10px 4px;background:#fff;border-radius:6px;box-shadow:0 8px 24px #0000002e;transform:rotate(-1deg)}.postcard-img{width:100%;height:auto;max-height:420px;object-fit:cover;display:block;border-radius:3px}.small-card{max-width:480px;margin:0 auto 10px}.credit{font-size:12px;color:var(--muted);margin:8px 0}.stamps{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.stamp{border:2px dashed var(--line);border-radius:10px;padding:8px 12px;font-weight:700;color:var(--muted)}.stamp.on{border-color:var(--accent);color:var(--fg);background:color-mix(in srgb,var(--accent) 14%,transparent)}.duel-q{text-align:center;font-size:20px}.duel-row{display:flex;gap:10px;align-items:stretch}.duel-side{flex:1;font:inherit;font-weight:800;display:flex;flex-direction:column;align-items:center;gap:8px;padding:14px 8px;border-radius:16px;border:3px solid var(--line);background:var(--bg);color:var(--fg);cursor:pointer;min-height:140px;justify-content:center}.duel-side:hover:not(:disabled){border-color:var(--accent)}.duel-side.correct{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 18%,transparent)}.duel-side.wrong{opacity:.6}.vs{align-self:center;font-weight:900;color:var(--accent)}.duel-reveal p{margin:4px 0}.source-note{font-size:12px;color:var(--muted)}.next-btn{margin-top:12px;width:100%}.map-prompt{font-size:18px;margin-bottom:8px}.map-wrap{position:relative}.imap{width:100%;height:auto;display:block;border-radius:14px;touch-action:none;background:#a5d8ff;user-select:none}@media (prefers-color-scheme: dark){.imap{background:#1c3a5e}}.sea{fill:transparent}.land{fill:#ffe8cc;stroke:#8f6f4f;stroke-width:calc(.5px / var(--z, 1));cursor:pointer}.land:hover{fill:#ffc078}.land-off{fill:#ced4da;stroke:#adb5bd;stroke-width:calc(.4px / var(--z, 1));pointer-events:none}.tiny{fill:#ff922b;stroke:#fff;stroke-width:calc(1px / var(--z, 1))}.picked-bad{fill:#ffa8a8!important}.picked-ok,.found{fill:#8ce99a!important}.missed,.reveal{fill:#ff6b6b!important}.reveal{animation:blink 1s 2}@keyframes blink{50%{fill:#ffd43b}}.cursor{stroke:#1f1b2e;stroke-width:calc(2.5px / var(--z, 1));fill:#ffd43b}.halo{fill:#ffd43b40;stroke:#f08c00;stroke-dasharray:4 3;stroke-width:calc(1.5px / var(--z, 1));pointer-events:none}.map-controls{position:absolute;right:8px;top:8px;display:flex;flex-direction:column;gap:6px}.mc{width:44px;height:44px;border-radius:12px;border:0;background:var(--card);color:var(--fg);font-size:22px;font-weight:800;box-shadow:var(--shadow);cursor:pointer}.feedback{font-weight:700;min-height:1.5em}.passport{list-style:none;padding:0;display:flex;gap:6px;flex-wrap:wrap;margin:0 0 12px}.pp{background:var(--bg);padding:6px 10px;border-radius:10px;font-size:13px;font-weight:700}.pp.cur{outline:2px solid var(--accent)}.theme-banner{font-weight:800;color:var(--accent)}.result{margin-top:16px;padding:18px;border-radius:var(--radius);background:color-mix(in srgb,var(--accent) 10%,var(--card));border:2px solid var(--accent)}.result h2{margin:0 0 6px}.score strong{font-size:34px}.pb{color:var(--muted)}.share-preview{white-space:pre-wrap;background:var(--bg);padding:10px;border-radius:10px;font-size:14px}.share-status{min-height:1.4em;font-weight:700;color:var(--ok)}.recap{padding-left:18px}.badges-new{margin:10px 0;font-weight:800}.badge{background:#ffd43b;color:#1f1b2e;padding:4px 10px;border-radius:99px;margin-right:6px}.page{background:var(--card);padding:18px 20px;border-radius:var(--radius);box-shadow:var(--shadow)}.page h1{margin-top:0}.credits li{margin-bottom:6px;font-size:14px}.tbl{border-collapse:collapse;width:100%;font-size:14px}.tbl th,.tbl td{border-bottom:1px solid var(--line);padding:6px 8px;text-align:left}.warn{color:var(--bad)}.export{max-height:300px;overflow:auto;background:var(--bg);padding:10px;border-radius:10px;font-size:12px}@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}.seo-info{margin-top:1.5rem}.seo-info h2{font-size:1.15rem;margin:1.2rem 0 .4rem}.seo-info ol{padding-left:1.3rem}.faq dt{font-weight:700;margin-top:.7rem}.faq dd{margin:.2rem 0 0}.h1-sub{display:block;font-weight:700;color:var(--muted);font-size:.62em;line-height:1.2}.prerender-note{opacity:.7;padding:2rem 0;text-align:center}.consent{max-width:760px;margin:.75rem auto;padding:1rem 1.2rem;border-radius:16px;background:var(--card, #fff);border:2px solid #845ef7}.consent h2{font-size:1.05rem;margin:0 0 .4rem}.consent-actions{display:flex;gap:.75rem;flex-wrap:wrap}.consent-btn{flex:1 1 140px}.report textarea,.report select,.report input{width:100%;max-width:520px;font:inherit;padding:.5rem;border-radius:10px;border:1px solid #ccc}.card{--c-text: color-mix(in srgb, var(--c) 58%, #000);--c-bg: color-mix(in srgb, var(--c) 58%, #000)}.game,[style*=--accent]{--accent-bg: color-mix(in srgb, var(--accent) 58%, #000)}@media (prefers-color-scheme: dark){.card{--c-text: color-mix(in srgb, var(--c) 55%, #fff)}}.map-holder.loading{aspect-ratio:1000 / 520;display:grid;place-items:center;background:color-mix(in srgb,#a5d8ff 40%,transparent);border-radius:14px}.crumbs{font-size:14px;color:var(--muted);margin:6px 0 0}.quiz-flag{display:grid;place-items:center;margin:8px 0}.quiz-flag img{width:min(320px,80vw);height:auto;border-radius:8px;box-shadow:var(--shadow)}.quiz-q{font-size:1.3rem;text-align:center;margin:12px 0}.study{margin:1.4rem 0;background:var(--card);border-radius:var(--radius);padding:12px 16px}.study summary{font-weight:800;cursor:pointer;min-height:44px;display:flex;align-items:center}.flag-grid{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:12px 8px}.flag-grid li{display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px;font-size:14px}.flag-sm{width:96px;height:72px;object-fit:contain}.quiz-links{margin-top:1.4rem}