:root { --bg:#0f1115; --panel:#171a21; --text:#e8e8e8; --muted:#9aa0a6; --accent:#4fc3f7; --square-light:#f0d9b5; --square-dark:#b58863; }
*{box-sizing:border-box} html,body{height:100%} body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Arial}
.layout.three{display:grid;grid-template-columns:300px 1fr 340px;gap:18px;padding:18px}
.left,.right{display:grid;gap:16px;align-content:start}
.board-wrapper{position:relative;width:min(86vh,86vw);aspect-ratio:1;border:4px solid #2b3140;border-radius:10px;overflow:visible;margin:0 auto;background:#222}
.board{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);width:100%;height:100%}
.square{position:relative;display:grid;place-items:center;border:1px solid rgba(0,0,0,0.1)}
.light{background:var(--square-light)} .dark{background:var(--square-dark)}
.piece{width:78%;height:78%;object-fit:contain;pointer-events:none;user-select:none}
.square.move-src{box-shadow: inset 0 0 0 4px #ffca28}
.square.move-dst{box-shadow: inset 0 0 0 4px #29b6f6}
.square.castling-move{box-shadow: inset 0 0 0 4px #ff6b35; background: linear-gradient(45deg, rgba(255,107,53,0.2), rgba(255,107,53,0.1))}

/* Última jogada: destaque amarelo discreto na origem e destino */
.square.last-move-from{box-shadow: inset 0 0 0 4px rgba(255, 202, 40, 0.75)}
.square.last-move-to{box-shadow: inset 0 0 0 4px rgba(255, 235, 59, 0.9)}

/* Destaque "Sua vez" - realce sutil no tabuleiro quando for sua vez */
.your-turn .board-wrapper{outline: 3px solid #ffd54f; box-shadow: 0 0 0 4px rgba(255,213,79,0.25), 0 0 18px rgba(255,213,79,0.25)}

/* Badge de turno */
#turnBadge{display:inline-block;margin-left:8px;padding:2px 8px;border-radius:999px;background:#ffd54f;color:#111;font-weight:700;font-size:12px;vertical-align:middle}

/* Listas à direita */
#movesList li{padding:2px 0}
#suggestionsList li{padding:4px 0;display:flex;justify-content:space-between;align-items:center}

/* Overlay fim de jogo */
.overlay{position:absolute;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:5}
.overlay-card{background:#fff;color:#111;padding:16px 20px;border-radius:8px;min-width:240px;box-shadow:0 8px 30px rgba(0,0,0,.35);text-align:center}
.overlay-msg{margin-bottom:12px;font-weight:700}
.letters{position:absolute;bottom:-26px;left:0;width:100%;display:grid;grid-template-columns:repeat(8,1fr);text-align:center;color:var(--text);font-weight:700;pointer-events:none}
.numbers{position:absolute;top:0;left:-26px;height:100%;display:grid;grid-auto-rows:1fr;align-content:space-between;justify-items:center;color:var(--text);font-weight:700;pointer-events:none}
.btn{background:#262c3a;color:var(--text);border:1px solid #2b3140;border-radius:10px;padding:10px 12px;cursor:pointer;transition:.15s box-shadow,.15s transform,.15s background}
.btn:hover{box-shadow:0 2px 12px rgba(0,0,0,.25);transform:translateY(-1px)}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
.btn.primary{background:#1085ff;border-color:#1085ff}
.btn.ghost{background:transparent;border-color:#3a4153}
.btn-block{display:block;width:100%}
.input{width:100%;padding:6px 8px;border-radius:6px;border:1px solid #2b3140;background:#0f131b;color:var(--text)}
.conn,.status,.moves,.suggestions{background:var(--panel);border:1px solid #2b3140;border-radius:12px;padding:14px}
.conn h3,.status h3,.moves h3,.suggestions h3{margin:0 0 10px 0;display:flex;align-items:center;gap:8px}
.group{display:grid;gap:8px;margin:10px 0}
.group-row{display:flex;gap:8px}
.hint{font-size:12px;color:var(--muted)}
.pill{display:inline-block;padding:2px 8px;border-radius:999px;background:#2b3140;color:var(--text);font-size:12px}
.muted{color:var(--muted)}
.moves ol,#movesList{margin:0;padding-left:18px;max-height:300px;overflow-y:auto;overflow-x:hidden}
@media (max-width:1100px){.layout.three{grid-template-columns:1fr}.board-wrapper{width:92vw}}

/* Temas adicionais */
body.theme-green{ --square-light:#dcebcc; --square-dark:#659f3d }
body.theme-blue{ --square-light:#e0f3ff; --square-dark:#3b6ea8 }
body.theme-mono{ --square-light:#d9d9d9; --square-dark:#666 }
body.theme-brown{ --square-light:#f6e5c6; --square-dark:#8b5e3c }

/* Flip board */
.flipped .board{ transform: rotate(180deg); }
.flipped .square .piece{ transform: rotate(180deg); }
/* Notações não giram quando o tabuleiro é virado */