:root{color-scheme:light;--bg:#f6f8fc;--panel:#fff;--ink:#152039;--sub:#586780;--line:#e3e9f3;--accent:#544be9;--accent2:#00a89b;--alt:#f1efff;--shadow:0 16px 40px rgba(20,33,70,.065)}
:root[data-theme=dark]{color-scheme:dark;--bg:#101527;--panel:#192139;--ink:#f5f7fe;--sub:#a9b8d4;--line:#35415b;--accent:#9b93ff;--accent2:#64dfcb;--alt:#25294e;--shadow:0 16px 40px rgba(0,0,0,.15)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--accent2);outline-offset:3px}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}p{margin:.65rem 0 1rem}h1,h2,h3{line-height:1.19;letter-spacing:-.027em;margin:0 0 .85rem}h1{font-size:clamp(2.15rem,4vw,3.6rem)}h2{font-size:clamp(1.5rem,2.5vw,2.1rem)}h3{font-size:1.15rem}.muted,small{color:var(--sub)}.shell{width:min(1140px,calc(100% - 40px));margin:auto}.skip{position:absolute;top:-60px;left:8px;background:var(--panel);padding:9px;z-index:100}.skip:focus{top:8px}.topbar{background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;box-shadow:0 4px 24px rgba(0,0,0,.025)}.nav-inner{display:flex;gap:17px;min-height:76px;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.12rem;letter-spacing:-.04em;white-space:nowrap}.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(130deg,#6256ed,#10beaf);display:grid;place-items:center;color:white;font-size:1.4rem}.nav-links{display:flex;gap:17px;align-items:center;font-weight:680;font-size:.88rem}.nav-links a:hover{color:var(--accent)}.nav-actions{display:flex;gap:9px;align-items:center}.pill,.tiny-btn{border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:12px;padding:9px 12px;font-size:.86rem;font-weight:700;white-space:nowrap}.kofi{background:#ff605e;border-color:#ff605e;color:#fff}.menu-button{display:none}.hero{padding:63px 0 35px}.eyebrow,.kicker{font-size:.77rem;font-weight:850;text-transform:uppercase;letter-spacing:.11em;color:var(--accent)}.hero h1{max-width:850px;margin-top:12px}.gradient{background:linear-gradient(110deg,#6455ec,#00b6a3);color:transparent;background-clip:text}.hero-copy{font-size:1.12rem;color:var(--sub);max-width:720px}.main-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:22px}.panel{border:1px solid var(--line);background:var(--panel);border-radius:22px;padding:25px;box-shadow:var(--shadow)}.panel+.panel{margin-top:20px}.flagship h2{margin-bottom:.45rem}.panel-intro{color:var(--sub);margin:0 0 20px}.stat-box{padding:17px 19px;background:var(--alt);border-radius:15px;margin-bottom:13px}.stat-box b{display:block;font-size:1.5rem;color:var(--accent)}.stat-box span{font-size:.83rem;color:var(--sub)}.ad-reserve{height:65px;margin:25px 0;background:repeating-linear-gradient(45deg,var(--panel),var(--panel) 12px,var(--bg) 12px,var(--bg) 24px);border:1px dashed var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--sub);font-size:.76rem}.section{margin:42px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:12px;margin-bottom:20px}.section-head p{margin:0;color:var(--sub)}.card-grid-tools{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.tool-card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:17px;padding:21px;transition:transform .15s,box-shadow .15s}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--accent)}.tool-card .symbol{font-size:1.6rem;display:block;margin-bottom:12px}.tool-card b{display:block;font-size:1rem}.tool-card p{font-size:.88rem;color:var(--sub);margin:.4rem 0 .6rem}.tool-card .open{font-size:.8rem;color:var(--accent);font-weight:850}.categories{display:flex;flex-wrap:wrap;gap:10px}.category-chip{border:1px solid var(--line);padding:10px 15px;border-radius:999px;background:var(--panel);font-weight:700;font-size:.88rem}.category-chip:hover{border-color:var(--accent);color:var(--accent)}.search-box{width:100%;padding:14px 16px;background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:13px;font-size:1rem}.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px;align-items:start}.breadcrumbs{font-size:.83rem;color:var(--sub);padding:29px 0 8px}.breadcrumbs a{color:var(--accent)}.tool-main h1{margin-top:14px}.play-panel{padding:25px;margin-top:20px}.big-pad{min-height:205px;display:flex;flex-direction:column;justify-content:center;align-items:center;border-radius:17px;text-align:center;font-size:clamp(1.4rem,4vw,2.7rem);font-weight:850;padding:22px;user-select:none;touch-action:manipulation;outline-offset:4px;border:2px solid transparent}.big-pad small{display:block;font-size:.88rem;font-weight:600;margin-top:8px}.big-pad.waiting{background:#f5cc63;color:#3e3010}.big-pad.go{background:#2bbe94;color:#092d24}.big-pad.error{background:#f47e87;color:#4a1820}.big-pad.success{background:#9c92ff;color:#181144}.game-controls{display:flex;flex-wrap:wrap;gap:12px;margin:17px 0}.gbtn{border:0;border-radius:12px;padding:12px 18px;background:var(--accent);color:#fff;font-weight:800;transition:transform .12s;min-height:45px}.gbtn:not(:disabled):active{transform:scale(.98)}.gbtn.secondary{background:var(--alt);color:var(--ink);border:1px solid var(--line)}.game-notice{color:var(--sub);font-size:.9rem}.game-result{background:var(--alt);border-radius:13px;padding:15px 18px;margin:18px 0;min-height:38px}.game-result:empty{display:none}.game-result strong{color:var(--accent)}.game-result p{margin:.35rem 0 0}.history-note{font-size:.8rem;color:var(--sub);padding-top:6px}.type-passage{font-size:1.16rem;line-height:1.8;margin:13px 0 18px;padding:15px;background:var(--alt);border:0;border-radius:13px}.game-input{width:100%;padding:12px 14px;background:var(--bg);border:1px solid var(--line);color:var(--ink);border-radius:10px;resize:vertical}.game-input.short{width:min(100%,240px);display:block;margin:9px 0}.choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.choice-grid button{width:100%}.signal-color,.memory-number{text-align:center;font-size:clamp(2rem,5vw,3.6rem);font-weight:900;margin:24px 0;letter-spacing:.025em;overflow-wrap:anywhere}.memory-number.small{font-size:2rem}.aim-field{height:330px;position:relative;overflow:hidden;background:radial-gradient(circle at center,var(--alt),var(--bg));border:1px dashed var(--line);border-radius:15px;touch-action:manipulation}.aim-placeholder{position:absolute;inset:0;display:grid;place-items:center;color:var(--sub)}.aim-target{position:absolute;left:5px;top:5px;width:54px;height:54px;background:radial-gradient(circle,#ffe0dd 0 24%,#f06474 25% 60%,#ed465b 61%);border:2px solid #fff;border-radius:100%;box-shadow:0 0 0 1px #ed465b}.pad-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:340px;margin:20px auto}.seq-pad{aspect-ratio:1;background:var(--pad);opacity:.58;border:0;border-radius:15px}.seq-pad.lit{opacity:1;filter:brightness(1.5);box-shadow:0 0 18px var(--pad)}.memory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;max-width:350px;margin:auto}.memory-tile{aspect-ratio:1;border:1px solid var(--line);border-radius:9px;background:var(--alt)}.memory-tile.visible,.memory-tile.selected{background:var(--accent)}.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;max-width:400px;margin:auto}.flip-card{aspect-ratio:1;border:0;border-radius:12px;background:var(--accent);color:white;font-size:2rem;font-weight:900}.flip-card.flipped{background:var(--alt);color:var(--ink)}.symbol-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:4px;max-width:450px;margin:auto}.symbol-tile{aspect-ratio:1;border:1px solid var(--line);border-radius:7px;background:var(--alt);color:var(--ink);font-size:1.4rem}.color-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;max-width:420px;margin:auto}.color-tile{aspect-ratio:1;border:0;border-radius:8px}.stopwatch-face,.tempo-result{font-size:clamp(2rem,6vw,4rem);font-weight:850;text-align:center;font-variant-numeric:tabular-nums;padding:28px 0}.lap-list{max-height:170px;overflow:auto}.device-zone{padding:52px 18px;text-align:center;background:var(--alt);border:2px dashed var(--accent);border-radius:14px;font-weight:700;min-height:140px}.text-stats{font-size:1.08rem;font-weight:750;background:var(--alt);padding:16px;border-radius:12px}.explain{padding:26px 0 10px}.explain h2{font-size:1.42rem;margin:25px 0 8px}.explain p{color:var(--sub)}.faq{border-top:1px solid var(--line);padding:14px 0}.faq h3{margin:0;font-size:1rem}.faq p{margin:.35rem 0;color:var(--sub)}.side-list{margin:0;padding:0;list-style:none}.side-list li{padding:9px 0;border-bottom:1px solid var(--line);font-size:.9rem}.side-list a:hover{color:var(--accent)}.footer{border-top:1px solid var(--line);margin-top:60px;padding:38px 0 25px;background:var(--panel)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:25px}.footer a{color:var(--sub)}.footer a:hover{color:var(--accent)}.footer small{display:block;margin-top:22px}.badge-lite{font-size:.73rem;color:var(--accent);background:var(--alt);padding:6px 10px;border-radius:999px;font-weight:800;display:inline-block}.notice{padding:14px 18px;background:var(--alt);border-left:3px solid var(--accent);border-radius:8px;color:var(--sub)}[hidden]{display:none!important}@media(max-width:920px){.main-grid,.tool-layout{grid-template-columns:1fr}.card-grid-tools{grid-template-columns:repeat(2,minmax(0,1fr))}.nav-links{display:none;position:absolute;top:75px;left:0;right:0;background:var(--panel);padding:16px 25px;border-bottom:1px solid var(--line);flex-direction:column;align-items:start}.nav-links:not([hidden]){display:flex}.menu-button{display:block}.footer-grid{grid-template-columns:1fr 1fr}.hero{padding-top:43px}}@media(min-width:921px){.nav-links[hidden]{display:flex!important}}@media(max-width:560px){.shell{width:min(100% - 24px,1140px)}.panel{padding:17px}.card-grid-tools{grid-template-columns:1fr}.hero h1{font-size:2.3rem}.footer-grid{grid-template-columns:1fr}.nav-inner{min-height:67px}.nav-links{top:67px}.brand{font-size:1rem}.kofi{display:none}.play-panel{padding:15px}.symbol-grid{gap:2px}.symbol-tile{font-size:1.15rem}.big-pad{min-height:180px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition:none!important}}