:root{--bg: #0e120f;--panel: #18211c;--line: #2b3a30;--ink: #eaf3ec;--dim: #8fa897;--accent: #5a9c6a;--accent-bright: #7fd49a;--ok: #7fd49a;--bad: #e0654a}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#16201a,var(--bg));color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,sans-serif;display:flex;justify-content:center;-webkit-user-select:none;user-select:none}#app{width:100%;max-width:820px;padding:12px 12px 26px}header{text-align:center;margin-bottom:6px}h1{margin:0;font-size:28px;letter-spacing:5px;font-weight:800;color:var(--accent-bright)}.sub{margin:2px 0 0;color:var(--dim);font-size:13px}.bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;margin:9px 0}.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:999px;overflow:hidden}.seg button{background:none;border:none;color:var(--dim);padding:6px 14px;font:600 13px system-ui;cursor:pointer}.seg button.active{background:var(--accent);color:#06140a}.btn{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:7px 14px;border-radius:999px;font:700 13px system-ui;cursor:pointer}.btn:hover{border-color:var(--accent-bright)}.status{text-align:center;min-height:20px;margin:6px 0 2px;color:var(--dim);font-size:13px;font-weight:600}.rules{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:4px 0 8px;font-size:12px}.rulescol{color:var(--dim)}.rulescol b{color:var(--accent-bright)}.rule{display:inline-block;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:1px 7px;margin:2px 3px 0;color:var(--ink);font-weight:700;letter-spacing:1px}.dim{color:var(--dim);opacity:.7}.stage{position:relative;display:flex;justify-content:center}canvas{width:100%;max-width:780px;height:auto;display:block;border-radius:10px;background:var(--bg);box-shadow:0 12px 34px #0000008c;touch-action:none}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#080c09bd;border-radius:10px;backdrop-filter:blur(3px)}.overlay.hidden{display:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px 26px;text-align:center;max-width:340px}.card h2{margin:0 0 6px;font-size:24px;color:var(--accent-bright)}.card p{margin:6px 0;color:var(--dim);font-size:14px}.card .row{display:flex;gap:8px;justify-content:center;margin-top:14px}.hint{text-align:center;color:var(--dim);font-size:12px;margin-top:10px}.pad{display:flex;flex-direction:column;align-items:center;gap:6px;margin-top:12px}.padmid{display:flex;gap:6px}.dbtn{width:54px;height:44px;background:var(--panel);border:1px solid var(--line);color:var(--ink);border-radius:9px;font-size:18px;cursor:pointer}.dbtn:hover{border-color:var(--accent-bright)}.dbtn:active{background:var(--accent);color:#06140a}