.chess-lab .lab-pedagogy-card{max-width:1200px;margin:22px auto 0;padding:16px 20px;border:1px solid #bbae91;border-left:4px solid #1b735b;border-radius:12px;background:#fff8e8;color:#162c2c}.chess-lab .lab-pedagogy-card>strong{display:block;margin-bottom:8px;color:#1b735b;font-size:.7rem;letter-spacing:.12em}.chess-lab .lab-pedagogy-card>div{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 20px}.chess-lab .lab-pedagogy-card span{font-size:.78rem;line-height:1.45;color:#52645e}.chess-lab .lab-pedagogy-card b{color:#162c2c}@media(max-width:600px){.chess-lab .lab-pedagogy-card>div{grid-template-columns:1fr}}
.chess-lab{padding:96px 6vw;background:#f3ead2;color:#162c2c}.chess-heading{max-width:1200px;margin:auto;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:end}.chess-heading h2{font-family:Georgia,serif;font-size:clamp(2.5rem,5vw,4.8rem);line-height:1;margin:12px 0}.chess-heading p{font-size:1.08rem;line-height:1.7}.chess-progress{margin-top:18px}.chess-progress span{font-size:.78rem;letter-spacing:.08em}.chess-progress i{display:block;height:9px;background:#d8cdb3;border-radius:20px;margin-top:8px;overflow:hidden}.chess-progress b{display:block;width:0;height:100%;background:linear-gradient(90deg,#1b735b,#e0a72d);transition:width .3s}.chess-layout{max-width:1200px;margin:38px auto 0;display:grid;grid-template-columns:320px 1fr;gap:24px}.chess-sections{display:grid;gap:9px}.chess-section-button{display:grid;grid-template-columns:38px 1fr auto;gap:12px;align-items:center;text-align:left;padding:13px;border:1px solid #bbae91;border-radius:14px;background:#fff8e8;color:#162c2c}.chess-section-button.active{border-color:#1b735b;box-shadow:0 0 0 2px #1b735b22}.chess-section-button.done{border-color:#319875}.chess-section-button>span:first-child{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#e7dcc5;font-weight:800}.chess-section-button small,.chess-section-button strong{display:block}.chess-section-button small{font-size:.65rem;color:#786d59}.chess-panel{background:#153334;color:#fff;border-radius:24px;padding:28px;display:grid;grid-template-columns:minmax(280px,520px) 1fr;gap:28px}.chess-board-wrap{min-width:0}.chess-board{display:grid;grid-template-columns:repeat(8,1fr);aspect-ratio:1;max-width:520px;border:8px solid #0c2223;border-radius:8px;overflow:hidden}.chess-square{position:relative;display:grid;place-items:center;border:0;font-size:clamp(1.7rem,4vw,3.2rem);line-height:1;padding:0}.chess-square.light{background:#eadcb9}.chess-square.dark{background:#55806c}.chess-square.selected{box-shadow:inset 0 0 0 5px #ffd65c}.chess-square.target::after{content:'';position:absolute;width:25%;height:25%;border-radius:50%;background:#ffd65ccc}.chess-square.last{box-shadow:inset 0 0 0 4px #f3b73b}.chess-coord{position:absolute;left:3px;bottom:2px;font:700 .58rem Arial;color:#17353688}.chess-copy small{color:#9ad4bd;letter-spacing:.1em}.chess-copy h3{font-size:1.65rem;margin:7px 0 14px}.chess-copy p{line-height:1.6;color:#dce7df}.chess-objective{padding:14px;border-left:4px solid #e5b54a;background:#ffffff0c;border-radius:8px}.chess-feedback{min-height:56px;font-weight:700;color:#ffd879}.chess-actions{display:flex;gap:10px;flex-wrap:wrap}.chess-note{max-width:1200px;margin:20px auto 0;font-size:.88rem;color:#5e5546}@media(max-width:950px){.chess-panel{grid-template-columns:1fr}.chess-board{margin:auto}.chess-copy{max-width:600px;margin:auto}}@media(max-width:760px){.chess-heading,.chess-layout{grid-template-columns:1fr}.chess-sections{grid-template-columns:1fr 1fr}}@media(max-width:520px){.chess-lab{padding:70px 14px}.chess-sections{grid-template-columns:1fr}.chess-panel{padding:14px}.chess-board{border-width:5px}.chess-square{font-size:clamp(1.45rem,9vw,2.5rem)}}