:root{--bg:#f6f7fb;--card:#fff;--line:#d8dce6;--text:#1d2433;--muted:#667085;--blue:#d9ecff;--yellow:#fff2a8;--green:#0f9f6e;--orange:#f59e0b;--red:#dc2626}
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}.app{max-width:1120px;margin:0 auto;padding:20px}h1{margin:0 0 4px;font-size:28px}.subtitle{margin:0 0 16px;color:var(--muted)}.card-panel,.challenge{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin:14px 0;box-shadow:0 2px 8px rgba(16,24,40,.05)}.status{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}.status div{padding:8px;background:#f9fafb;border-radius:10px}.status b{display:block;color:var(--muted);font-size:12px}.hand{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.card{width:165px;min-height:78px;border:1px solid #aeb4c0;background:#fff;border-radius:12px;padding:8px;cursor:pointer;text-align:left;font-weight:700;white-space:pre-line}.card small{display:block;font-weight:500;color:var(--muted)}.card.selected{background:var(--blue);border:3px solid #1e88e5}.card.hint{background:var(--yellow);border:3px solid #f9a825}.actions{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}button{border:1px solid #b9c0cc;border-radius:10px;background:white;padding:10px 13px;font-weight:700;cursor:pointer}button:hover{filter:brightness(.98)}button.primary{background:#e6f4ef;border-color:#71d3af;color:#086143}button.warning{background:#fff7e6;border-color:#f6c453;color:#8a5600}button.danger{background:#fee2e2;border-color:#fca5a5;color:#991b1b}.hidden{display:none}.challenge{border-color:#f59e0b;background:#fffbeb}.challenge h2{margin-top:0;color:#b45309}.log-entry{border-bottom:1px solid #edf0f5;padding:4px 0}.details ul,.log ul{margin:0;padding-left:20px}.gameover{color:var(--red);font-weight:800}.help{color:var(--muted);margin-top:0}@media(max-width:560px){.card{width:calc(50% - 6px);font-size:13px}.app{padding:12px}}