:root{--blue: #0f3d8a;--gold: #f8d24a;--ink: #0b1726;--card: #10243a}*{box-sizing:border-box}body{margin:0;background:#071321;color:#fff;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu}.page{max-width:1200px;margin:0 auto;padding:16px}.header{display:flex;align-items:center;gap:16px;justify-content:space-between;flex-wrap:wrap}.scores{display:flex;gap:12px}.actions{display:flex;gap:8px}.actions .link{display:inline-flex;align-items:center;padding:8px 12px;background:#1b3358;color:#fff;text-decoration:none;border-radius:10px}button{background:#1e7c4a;color:#fff;border:none;border-radius:10px;padding:8px 12px;cursor:pointer;font-weight:600}button:hover{filter:brightness(1.1)}button.disabled,button:disabled{opacity:.5;cursor:not-allowed}.board{display:flex;flex-direction:column;gap:10px;margin-top:16px}.board-row{display:grid;gap:10px}.category{background:#10243a;padding:10px;border-radius:12px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;min-height:64px;display:flex;align-items:center;justify-content:center;text-align:center}.slot{height:110px}.card{position:relative;height:110px;background:transparent;padding:0;border-radius:12px}.card-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .5s ease}.card.flipped .card-inner{transform:rotateY(180deg)}.card-front,.card-back{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;border-radius:12px;backface-visibility:hidden;box-shadow:0 8px 20px #0000004d}.card-front{background:var(--blue);color:var(--gold);font-size:28px;font-weight:900}.card-back{background:#f7fafc;color:#0c1321;transform:rotateY(180deg);padding:12px;text-align:center}.clue-text{font-size:18px;line-height:1.25}.score{background:#10243a;padding:10px 14px;border-radius:12px;box-shadow:0 6px 16px #00000040}.score-label{font-size:12px;opacity:.75}.score-value{font-variant-numeric:tabular-nums;font-size:28px;font-weight:800}.award{position:fixed;left:50%;transform:translate(-50%);bottom:24px;display:flex;gap:10px;align-items:center;background:#10243ae6;padding:10px 12px;border-radius:14px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.locked{position:fixed;left:50%;transform:translate(-50%);bottom:24px;background:#f8d24a;color:#221a00;padding:10px 12px;border-radius:14px;font-weight:700}.container.narrow{max-width:680px;margin:40px auto;padding:20px}.card{background:none}.card input[type=file]{width:100%;background:#0d223b;border-radius:10px;padding:10px;margin:8px 0}.error{background:#742a2a;padding:8px 10px;border-radius:10px;margin-bottom:10px}.mt{margin-top:10px}