:root{--bg:#F7F8FA;--fg:#151a26;--card:#fff;--muted:#eceef2;--mfg:#6b7280;--p:#5b4bdb;--p2:#8b5cf6;--bd:#e3e6ec;--gold:#f59e0b}
@media(prefers-color-scheme:dark){:root{--bg:#0F1115;--fg:#e7e9ee;--card:#171a21;--muted:#232733;--mfg:#9aa1ad;--bd:#2a2f3a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font-family:'Pretendard',-apple-system,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;line-height:1.7;word-break:keep-all}
a{color:var(--p)}.wrap{max-width:760px;margin:0 auto;padding:0 16px}
header{border-bottom:1px solid var(--bd);background:var(--card)}header .wrap{display:flex;justify-content:space-between;align-items:center;height:56px}
.logo{font-weight:900;text-decoration:none;color:var(--fg);display:flex;gap:8px;align-items:center}
.mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,#6366f1,#a855f7);color:#fff;display:grid;place-items:center;font-size:15px}
header nav a{margin-left:14px;text-decoration:none;color:var(--mfg);font-size:14px}
h1{font-size:24px;margin:20px 0 4px}.sub{color:var(--mfg);margin:0 0 14px;font-size:15px}
.stage{position:relative;width:100%;max-width:480px;margin:0 auto;aspect-ratio:3/4;max-height:72vh;border-radius:18px;overflow:hidden;background:#1e2230;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.stage canvas{width:100%;height:100%;display:block}
.hud{position:absolute;left:0;right:0;top:0;display:flex;justify-content:space-between;padding:10px 14px;color:#fff;font-weight:800;font-size:18px;text-shadow:0 1px 3px #0008;pointer-events:none}
.layer{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:18px;background:#0b0d14cc;color:#fff;text-align:center;overflow:auto}
.layer[hidden]{display:none}
.layer h2{margin:0 0 6px;font-size:22px}.layer p{margin:4px 0}
.big{font-size:44px;font-weight:900;line-height:1.1;margin:6px 0;color:#fde68a}
.btn{border:0;border-radius:14px;padding:13px 22px;font-size:17px;font-weight:800;color:#fff;background:linear-gradient(135deg,#6366f1,#a855f7);cursor:pointer;margin-top:10px;min-width:200px}
.btn.ghost{background:#ffffff22}.btn:disabled{opacity:.55;cursor:default}
.row{display:flex;gap:8px;width:100%;max-width:320px;margin-top:10px}
.row input{flex:1;min-width:0;border:1px solid #ffffff44;background:#ffffff14;color:#fff;border-radius:12px;padding:11px 12px;font-size:16px}
.row .btn{min-width:0;margin:0;padding:11px 14px;font-size:15px}
.msg{min-height:1.4em;font-size:14px;color:#c7d2fe}
.board{list-style:none;padding:0;margin:10px 0 0;width:100%;max-width:320px;text-align:left;font-size:15px}
.board li{display:flex;gap:10px;padding:5px 10px;border-radius:8px}.board li:nth-child(odd){background:#ffffff0d}
.board li b{width:22px;color:#fde68a}.board li span:first-of-type{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.board li.bh{background:none;font-weight:800;justify-content:center}.board li.me{background:#f59e0b44}.board li.empty{justify-content:center;color:#cbd5e1}
.side{background:var(--card);border:1px solid var(--bd);border-radius:16px;padding:16px 18px;margin:18px 0}
.side h2{font-size:18px;margin:0 0 8px}.side ul{margin:0;padding-left:20px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:16px 0}
.card{display:block;text-decoration:none;color:var(--fg);background:var(--card);border:1px solid var(--bd);border-radius:18px;padding:18px}
.card .em{font-size:40px}.card h2{margin:6px 0 4px;font-size:19px}.card p{margin:0;color:var(--mfg);font-size:14px}
.card .top{margin-top:10px;font-size:13px;color:var(--p)}
footer{color:var(--mfg);font-size:13px;padding:24px 0 40px;text-align:center}