:root{color-scheme:dark;--theme-color:#070b12;--bg:#070b12;--panel:#0b111a;--ink:#e8f0f7;--muted:#748394;--line:#243241;--cyan:#64e6e0;--red:#ff6b7a;--wood:#d2a35f;--wood-line:#67431f}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}body{display:flex;justify-content:center}button,select{font:inherit}.page{width:min(760px,100%);padding:22px 16px max(22px,env(safe-area-inset-bottom))}.topbar{height:44px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;margin-bottom:14px}.topbar h1{font-size:22px;letter-spacing:.18em;margin:0}.topbar a,.topbar button{color:var(--muted);background:none;border:0;text-decoration:none;font:10px inherit;letter-spacing:.1em;padding:12px 0;cursor:pointer;min-height:44px}.topbar button{text-align:right}.settings{display:grid;grid-template-columns:1fr 1.2fr 1.2fr;gap:8px;margin-bottom:12px}.settings>*{min-width:0;border:1px solid var(--line);background:var(--panel);padding:8px 10px;color:var(--muted);font-size:8px;letter-spacing:.08em;display:flex;flex-direction:column;gap:4px}.settings select{border:0;background:transparent;color:var(--ink);font:700 11px inherit;padding:0}.settings b{color:var(--ink);font-size:11px;white-space:nowrap}.settings i{font-style:normal;color:var(--cyan)}.game-shell{border:1px solid var(--line);background:var(--panel);padding:10px;box-shadow:0 15px 50px #0008}.turn{height:34px;display:flex;align-items:center;gap:8px;color:var(--muted);font-size:9px;letter-spacing:.08em}.turn>i,.black,.white{display:inline-block;width:12px;height:12px;border-radius:50%;flex:none}.black{background:#17191c;border:1px solid #66717c}.white{background:#f2eee6;border:1px solid #9c9488}.turn button{margin-left:auto;border:1px solid var(--line);background:transparent;color:var(--muted);font:9px inherit;padding:6px 10px;cursor:pointer}.turn button:disabled{opacity:.35;cursor:not-allowed}.board-box{position:relative;width:100%;aspect-ratio:1;border:1px solid var(--line);background:var(--wood);box-shadow:0 15px 50px #0006}.board-box canvas{display:block;width:100%;height:100%;touch-action:none;user-select:none;-webkit-user-select:none}.curtain{position:absolute;inset:0;background:#070b12e8;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:13px;text-align:center;padding:24px}.curtain.hidden{display:none}.curtain b{font-size:clamp(21px,5vw,30px);letter-spacing:.13em}.curtain span{max-width:80%;color:var(--muted);font-size:9px;letter-spacing:.08em;line-height:1.7}.curtain button{border:0;background:var(--cyan);color:#061113;padding:12px 22px;min-height:44px;font:700 10px inherit;letter-spacing:.1em;cursor:pointer}footer{border-top:1px solid var(--line);margin-top:18px;padding-top:12px;text-align:center;color:var(--muted);font-size:8px;letter-spacing:.06em}[data-theme="light"]{color-scheme:light;--theme-color:#faf8ef;--bg:#faf8ef;--panel:#f1eee7;--ink:#3e3934;--muted:#8b8177;--line:#d8d0c5;--cyan:#4f9294;--red:#c95f5a}[data-theme="light"] .game-shell{box-shadow:0 15px 45px #51483b18}[data-theme="light"] .board-box{box-shadow:0 15px 45px #51483b24}[data-theme="light"] .curtain{background:#faf8efe8}@media(max-width:560px){.page{padding:9px 10px 16px}.topbar{height:40px;margin-bottom:8px}.topbar h1{font-size:19px}.settings{grid-template-columns:repeat(3,1fr);gap:5px;margin-bottom:8px}.settings>*{padding:6px;font-size:7px}.settings b,.settings select{font-size:9px}.game-shell{padding:6px}.turn{height:30px}.board-box{box-shadow:0 10px 30px #0005}.curtain span{max-width:92%}footer{margin-top:12px}}@media(max-width:370px){.settings{grid-template-columns:1fr 1fr}.record{grid-column:1/-1}.topbar a,.topbar button{font-size:9px}}