@import"https://fonts.googleapis.com/css2?family=Nunito:wght@700;900&display=swap";body{margin:0;padding:0;box-sizing:border-box;background-color:#282c34;font-family:Nunito,sans-serif;-webkit-font-smoothing:antialiased}h1{font-weight:900;font-size:2.5rem;text-transform:uppercase;letter-spacing:1px;color:#fff;text-shadow:0px 4px 7px rgba(0,0,0,.4);margin-bottom:25px}*{box-sizing:border-box}body{margin:0;padding:0}.app-container{display:flex;flex-direction:column;min-height:100vh;background:linear-gradient(180deg,#1e1e2f,#12121a);color:#fff;font-family:Nunito,sans-serif}.header{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;box-shadow:0 2px 10px #0000004d;flex-wrap:wrap;gap:15px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#21252bd9}.logo-area{display:flex;align-items:center;font-weight:900}.buttons-area{display:flex;gap:10px}.controls-area{display:flex;align-items:center;gap:15px;background-color:#ffffff1a;padding:10px;border-radius:8px;margin-right:15px}.difficulty-label{color:#ecf0f1;font-weight:700;font-size:14px}.difficulty-select{padding:8px 12px;border-radius:6px;border:1px solid #34495e;background-color:#2c3e50;color:#fff;cursor:pointer;font-weight:700;font-size:14px;font-family:Nunito,sans-serif;outline:none;transition:all .2s}.difficulty-select:hover{background-color:#34495e;border-color:#4a90e2}.action-button{display:flex;align-items:center;justify-content:center;color:#fff;border:none;padding:10px 15px;border-radius:8px;cursor:pointer;font-weight:700;font-size:.9rem;font-family:Nunito,sans-serif;transition:all .2s ease}.action-button:hover{transform:translateY(-1px);box-shadow:0 6px 15px #0000004d;filter:brightness(1.1)}.main-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px 10px;width:100%}.status-card{margin-bottom:20px;padding:10px 30px;background-color:#ffffff1a;border-radius:50px;font-size:1.2rem;font-weight:700;text-align:center}.board-area{display:flex;flex-direction:column;align-items:center;width:100%;max-width:450px}.board-top-bar,.board-bottom-bar{width:100%;display:flex;justify-content:space-between;align-items:center;margin:6px 0}.board-top-bar{margin-bottom:8px}.board-bottom-bar{margin-top:8px}.toolbar-btn{display:flex;align-items:center;gap:6px;background:#ffffff14;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.18);color:#ecf0f1;padding:6px 12px;border-radius:10px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s ease}.toolbar-btn:hover:not(:disabled){background:#ffffff2e;transform:translateY(-1px)}.toolbar-btn:disabled{opacity:.35;cursor:not-allowed}.board-wrapper{width:min(90vw,450px);height:min(90vw,450px);background:#00000040;padding:15px;border-radius:16px;box-shadow:0 30px 80px #0009,0 0 120px #0006}.captured-pieces-container{display:flex;gap:-5px;height:30px;align-items:center;margin:5px 0;padding:4px 8px;background-color:#0000004d;border-radius:6px;width:fit-content;min-width:20px}.captured-piece-img{width:24px;height:24px;filter:drop-shadow(1px 1px 2px rgba(0,0,0,.5));margin-right:-4px}.footer{background-color:#21252b;padding:20px;text-align:center;margin-top:auto}.social-links{display:flex;justify-content:center;gap:20px;margin-top:10px}.social-link{color:#abb2bf;transition:color .2s;text-decoration:none}.social-link:hover{color:#4a90e2;transform:scale(1.1)}@media (max-width: 800px){.buttons-area{flex-wrap:wrap;justify-content:center}.controls-area{width:100%;justify-content:center;margin-right:0}}@media (max-width: 720px){.header{flex-direction:column;text-align:center}.buttons-area{flex-direction:column;width:100%}.action-button{width:100%}}@media (max-width: 600px){.header{flex-direction:column;text-align:center}.controls-area{width:100%}.buttons-area{flex-direction:column;gap:8px}.action-button{width:100%}}