/* Tractor Number Track */
.tn-board { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px 8px; padding: 14px 10px 12px; background: #e8f6df; border: 5px solid var(--wood); border-radius: 22px; }
.tn-post {
  position: relative; min-height: 70px; min-width: 64px; border-radius: 14px 14px 8px 8px; border: 3px solid #6d4a26; background: linear-gradient(180deg, #c8955a, #a0703f);
  color: #fff; cursor: pointer; padding: 0; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 0 #6d4a26; touch-action: manipulation;
}
.tn-post:disabled { cursor: default; }
.tn-num { font-size: 30px; font-weight: 900; text-shadow: 0 2px 0 rgba(0, 0, 0, .35); }
.tn-post.is-gap { background: #f3ece0; color: var(--ink-2); border-style: dashed; }
.tn-post.is-gap .tn-num { text-shadow: none; }
.tn-post.is-ask { background: var(--straw); color: var(--ink); animation: mf-bounce 1.2s ease infinite; }
.tn-post.is-right { background: linear-gradient(180deg, #7ccf6a, #2e8b3e); border-color: #1f6b2c; color: #fff; animation: none; }
.tn-tractor { position: absolute; top: -18px; left: 50%; transform: translateX(-50%) scaleX(-1); font-size: 30px; line-height: 1; }