:root{--bg: #0f1216;--panel: #171c23;--panel-2: #1e252e;--ink: #e7edf3;--muted: #8a97a6;--accent: #4cc2ff;--good: #5ad17a;--bad: #ff6b6b;--line: #2a323d;--stone-1: #11151a;--stone-2: #f2f5f8}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:radial-gradient(1200px 600px at 50% -10%,#1a2230,var(--bg));color:var(--ink);min-height:100vh}.container{max-width:880px;margin:0 auto;padding:24px 16px 64px}.muted{color:var(--muted)}.hero{text-align:center;margin:16px 0 28px}.hero h1{font-size:40px;margin:0 0 6px}.hero p{margin:0}.idbar{display:flex;gap:8px;align-items:center;justify-content:center;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin:0 auto 24px;max-width:460px}.idbar input{flex:1;background:var(--panel-2);border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:8px 10px;font-size:15px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px;cursor:pointer;transition:transform .12s ease,border-color .12s ease;display:flex;flex-direction:column;gap:6px;min-height:116px}.card:hover{transform:translateY(-2px);border-color:var(--accent)}.card.disabled{opacity:.5;cursor:not-allowed}.card .emoji{font-size:30px}.card h3{margin:2px 0 0;font-size:18px}.card .tag{align-self:flex-start;font-size:11px;text-transform:uppercase;letter-spacing:.04em;background:var(--panel-2);border:1px solid var(--line);color:var(--muted);padding:2px 8px;border-radius:999px;margin-top:auto}.card .tag.live{color:var(--good);border-color:#2c4}.btn{background:var(--accent);color:#04222f;border:none;border-radius:9px;padding:9px 14px;font-size:14px;font-weight:600;cursor:pointer}.btn.secondary{background:var(--panel-2);color:var(--ink);border:1px solid var(--line)}.btn:disabled{opacity:.5;cursor:not-allowed}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.section-title{display:flex;align-items:baseline;justify-content:space-between;margin:26px 0 10px}.rating-panel{display:grid;grid-template-columns:minmax(160px,.7fr) minmax(220px,1.3fr);gap:12px;margin:-8px 0 18px}.rating-card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:12px 14px;min-height:86px}.rating-card.mine{display:flex;flex-direction:column;justify-content:center;gap:2px}.rating-card.mine strong{font-size:32px;line-height:1}.rating-card small{font-size:12px}.rating-card ol{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:5px}.rating-card li{display:flex;justify-content:space-between;gap:12px;font-size:14px}.rating-card li.mine{color:var(--good)}.rating-card li span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rating-card li strong{font-variant-numeric:tabular-nums}.rules-summary{background:linear-gradient(180deg,#4cc2ff14,#5ad17a0d),var(--panel);border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin:-2px 0 16px}.rules-summary.in-modal{background:transparent;border:0;padding:0;margin:0 0 16px;text-align:left}.rules-kicker{color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;margin-bottom:4px}.rules-summary h2{margin:0 0 4px;font-size:18px;letter-spacing:0}.rules-summary p{margin:0;color:var(--muted);line-height:1.45}.rules-summary ul{list-style:none;padding:0;margin:10px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:8px}.rules-summary li{display:grid;gap:2px;min-width:0;background:#ffffff06;border:1px solid rgba(255,255,255,.05);border-radius:8px;padding:8px 10px}.rules-summary li strong{color:var(--ink);font-size:13px}.rules-summary li span{color:var(--muted);font-size:13px;line-height:1.35}.rules-hint{border-top:1px solid rgba(255,255,255,.06);padding-top:9px;font-size:13px}.rules-modal{max-width:560px;text-align:center}.rules-open{min-width:92px}.match-head{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:14px}.turn-dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:var(--muted)}.turn-dot.me{background:var(--good)}.turn-dot.them{background:var(--accent)}.board{display:grid;gap:2px;background:var(--line);border:6px solid var(--line);border-radius:8px;width:min(92vw,600px);aspect-ratio:1;margin:0 auto;grid-auto-rows:minmax(0,1fr)}.cell{background:#c9a86a;border:none;padding:0;cursor:pointer;position:relative;display:flex;align-items:center;justify-content:center}.cell:disabled{cursor:default}.cell .stone{width:78%;height:78%;border-radius:50%}.cell.s1 .stone{background:var(--stone-1);box-shadow:inset -2px -2px 3px #ffffff26}.cell.s2 .stone{background:var(--stone-2);box-shadow:inset -2px -2px 3px #00000040}.cell.last{outline:2px solid var(--accent);outline-offset:-2px}.board.ttt{width:min(80vw,420px);gap:4px}.board.ttt .cell{background:var(--panel-2);font-size:clamp(38px,14vw,92px);font-weight:800;line-height:1}.board.ttt .cell.s1{color:var(--accent)}.board.ttt .cell.s2{color:var(--good)}.board.g4{aspect-ratio:7 / 6;width:min(94vw,580px);background:#1c3fae;border-color:#1c3fae}.board.g4 .cell{background:#0d1a40;border-radius:50%}.board.g4 .cell.s1 .stone{background:#ff5252;box-shadow:inset -2px -3px 4px #0000004d}.board.g4 .cell.s2 .stone{background:#ffd23f;box-shadow:inset -2px -3px 4px #0000004d}.board.g4 .cell.col-hover:not(:disabled){background:#16265c}.board.g4 .cell.last{outline:2px solid #fff;outline-offset:-3px}.board.reversi{width:min(92vw,560px);background:#1f7a4d;border-color:#1a6841}.board.reversi .cell{background:#2a8f5e}.board.reversi .cell.hint:not(:disabled){cursor:pointer}.board.reversi .cell.hint:after{content:"";position:absolute;width:30%;height:30%;border-radius:50%;background:#fff6}.board.reversi .cell.last{outline:2px solid #ffd23f;outline-offset:-2px}.morris-board{width:min(92vw,540px);aspect-ratio:1;display:block;margin:0 auto;background:#20283180;border-radius:10px;padding:4px}.morris-line{stroke:#6b7787;stroke-width:4;stroke-linecap:round}.mpoint{fill:#1e252e;stroke:#6b7787;stroke-width:3;cursor:default;transition:fill .1s,stroke .1s}.mpoint.s1{fill:#11151a;stroke:#05070a}.mpoint.s2{fill:#f2f5f8;stroke:#9aa6b2}.mpoint.dest{stroke:var(--good);stroke-width:4;cursor:pointer}.mpoint.sel{stroke:var(--accent);stroke-width:5;cursor:pointer}.mpoint.rmv{stroke:var(--bad);stroke-width:5;cursor:pointer}.board.checkers{width:min(92vw,560px);gap:0;background:#3e2817;border-color:#3e2817}.board.checkers .cell.light{background:#e8c79a;cursor:default}.board.checkers .cell.dark{background:#a06a3c;cursor:default}.board.checkers .cell .stone{width:74%;height:74%;box-shadow:0 2px 4px #0006}.board.checkers .cell.src{cursor:pointer}.board.checkers .cell.src .stone{box-shadow:0 0 0 2px var(--good),0 2px 4px #0006}.board.checkers .cell.sel{cursor:pointer;outline:3px solid var(--accent);outline-offset:-3px;z-index:1}.board.checkers .cell.dest{cursor:pointer}.board.checkers .cell.dest:after{content:"";position:absolute;width:30%;height:30%;border-radius:50%;background:#5ad17aa6}.board.checkers .cell.king:after{content:"♛";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:clamp(14px,4.8vw,30px);pointer-events:none}.board.checkers .cell.s1.king:after{color:var(--stone-2)}.board.checkers .cell.s2.king:after{color:var(--stone-1)}.kalah-board{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;width:min(94vw,620px);margin:0 auto;background:#3a2a1a;padding:14px;border-radius:18px}.kalah-rows{display:grid;grid-template-rows:1fr 1fr;gap:12px}.kalah-row{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.kalah-pit{aspect-ratio:1;border:none;border-radius:50%;background:#7a5a34;color:var(--ink);font-size:clamp(15px,4vw,24px);font-weight:700;display:flex;align-items:center;justify-content:center;cursor:default}.kalah-pit.mine{background:#8a6a3c}.kalah-pit.playable{cursor:pointer;box-shadow:inset 0 0 0 3px var(--good)}.kalah-pit.playable:hover{background:#9a7a4c}.kalah-store{width:clamp(48px,12vw,68px);min-height:168px;background:#5a4326;border-radius:34px;display:flex;align-items:center;justify-content:center;color:var(--ink)}.kalah-store.right{box-shadow:inset 0 0 0 2px var(--good)}.kalah-store .count{font-size:clamp(22px,6vw,30px);font-weight:800}.board.chess{width:min(92vw,560px);gap:0;background:#5a4632;border-color:#5a4632}.board.chess .cell{font-size:clamp(22px,8vw,50px);line-height:1;font-weight:400}.board.chess .cell.light{background:#eeeed2;cursor:default}.board.chess .cell.dark{background:#6f9a55;cursor:default}.board.chess .cell.s1{color:#fbfbfb;text-shadow:0 1px 1px rgba(0,0,0,.55),0 0 2px rgba(0,0,0,.45)}.board.chess .cell.s2{color:#161616;text-shadow:0 1px 1px rgba(255,255,255,.35)}.board.chess .cell.src{cursor:pointer}.board.chess .cell.sel{cursor:pointer;box-shadow:inset 0 0 0 4px var(--accent)}.board.chess .cell.dest,.board.chess .cell.cap{cursor:pointer}.board.chess .cell.dest:after{content:"";position:absolute;width:30%;height:30%;border-radius:50%;background:#00000047}.board.chess .cell.cap:after{content:"";position:absolute;inset:8%;border-radius:50%;box-shadow:inset 0 0 0 4px #0000004d}.board.chess .cell.incheck{box-shadow:inset 0 0 0 4px var(--bad)}.chess-clock{text-align:center;font-variant-numeric:tabular-nums;font-weight:800;font-size:20px;color:var(--ink);background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:4px 0;margin:6px auto;width:min(92vw,560px)}.chess-clock.low{color:var(--bad)}.bs-boards{display:flex;flex-wrap:wrap;gap:18px;justify-content:center}.bs-side{display:flex;flex-direction:column;align-items:center;gap:6px}.bs-side h4{margin:0;font-size:14px;color:var(--muted)}.bs-board{display:grid;grid-template-columns:repeat(10,1fr);gap:2px;width:min(86vw,360px);aspect-ratio:1;background:#14334a;border:3px solid #14334a;border-radius:6px}.bs-cell{background:#2c5d80;border:none;padding:0;position:relative;cursor:default;border-radius:2px}.bs-cell.ship{background:#aebccb}.bs-cell.sunk{background:#5c6770}.bs-board.enemy .bs-cell.fireable{cursor:crosshair}.bs-board.enemy .bs-cell.fireable:hover,.bs-cell.place-ok{background:#3a7298}.bs-cell.hit:after{content:"✸";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#ff5a4d;font-size:clamp(10px,3.4vw,18px);line-height:1}.bs-cell.miss:after{content:"";position:absolute;width:26%;height:26%;top:37%;left:37%;border-radius:50%;background:#ffffff8c}.bs-controls{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:12px}.reactions{display:flex;gap:6px;justify-content:center;margin:14px 0 0;flex-wrap:wrap}.reactions button{font-size:20px;background:var(--panel-2);border:1px solid var(--line);border-radius:9px;cursor:pointer;padding:4px 8px}.float{position:fixed;font-size:40px;pointer-events:none;animation:floatUp 1.2s ease-out forwards;z-index:50}@keyframes floatUp{0%{transform:translateY(0);opacity:1}to{transform:translateY(-70px);opacity:0}}.overlay{position:fixed;inset:0;background:#080a0eb8;display:flex;align-items:center;justify-content:center;z-index:40}.modal{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px;text-align:center;max-width:360px}.modal h2{margin:0 0 8px}.delta{font-weight:700}.delta.up{color:var(--good)}.delta.down{color:var(--bad)}.status{text-align:center;color:var(--muted);margin:18px 0}.code{font-family:ui-monospace,monospace;background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:2px 8px}@media(max-width:620px){.rating-panel,.rules-summary ul{grid-template-columns:1fr}.rules-summary{margin-top:0}}