/* =================================
   Chess Board & Game Styles
   ================================= */

/* Game Page Layout */
.game-page {
    display: flex;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    min-height: calc(100vh - 80px);
}

.game-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 700px;
}

.game-sidebar {
    width: 300px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Player Panels */
.player-panel {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.player-panel.active-turn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.player-panel.active-turn .player-elo {
    color: rgba(255, 255, 255, 0.8);
}

.player-panel[data-color="white"]::before {
    content: '⬜';
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.player-panel[data-color="black"]::before {
    content: '⬛';
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.player-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.player-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--gray-light);
}

.player-details {
    display: flex;
    flex-direction: column;
}

.player-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.player-elo {
    font-size: 0.85rem;
    color: var(--gray);
}

/* Timer */
.timer {
    background: var(--dark);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-family: 'Courier New', monospace;
    font-size: 1.5rem;
    font-weight: bold;
    min-width: 100px;
    text-align: center;
}

.player-panel.active-turn .timer {
    background: var(--white);
    color: var(--primary);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Board Section */
.board-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

/* Chess Board Container */
.chess-board-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    user-select: none;
}

.board-wrapper {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Board Coordinates */
.board-coords {
    display: flex;
    font-size: 0.75rem;
    color: var(--gray);
    font-weight: 500;
}

.board-coords-top,
.board-coords-bottom {
    justify-content: space-around;
    width: 520px;
    margin-left: 22px;
    margin-right: 22px;
}

.board-coords-top span,
.board-coords-bottom span {
    width: 65px;
    text-align: center;
}

.board-coords-left,
.board-coords-right {
    flex-direction: column;
    justify-content: space-around;
    height: 520px;
}

.board-coords-left span,
.board-coords-right span {
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
}

/* Chess Board */
.chess-board {
    display: grid;
    grid-template-columns: repeat(8, 65px);
    grid-template-rows: repeat(8, 65px);
    border: 4px solid var(--primary-dark);
    border-radius: 4px;
    box-shadow: var(--shadow-lg);
}

/* Squares */
.square {
    width: 65px;
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: background-color 0.15s;
}

.square.light {
    background: #f0d9b5;
}

.square.dark {
    background: #b58863;
}

.square:hover {
    filter: brightness(1.1);
}

.square.selected {
    background: #829769 !important;
}

.square.last-move-from,
.square.last-move-to {
    background: rgba(255, 255, 0, 0.4) !important;
}

.square.in-check {
    background: radial-gradient(circle, #ff0000 0%, #ff6b6b 50%, transparent 70%) !important;
}

/* Move hints */
.square.move-hint::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 50%;
}

.square.capture-hint::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 4px solid rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    box-sizing: border-box;
}

/* Pieces */
.piece {
    font-size: 52px;
    line-height: 1;
    cursor: grab;
    transition: transform 0.1s;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    z-index: 10;
}

.piece.white {
    color: #ffffff;
    text-shadow: 
        1px 1px 0 #000,
        -1px 1px 0 #000,
        1px -1px 0 #000,
        -1px -1px 0 #000,
        2px 2px 4px rgba(0, 0, 0, 0.4);
}

.piece.black {
    color: #1a1a1a;
    text-shadow: 
        1px 1px 0 #666,
        2px 2px 4px rgba(0, 0, 0, 0.3);
}

.piece:hover {
    transform: scale(1.1);
}

.piece.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

/* Game Status */
.game-status {
    background: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    min-width: 300px;
}

.status-text {
    font-weight: 600;
    font-size: 1.1rem;
}

.status-your-turn {
    color: var(--success);
}

.status-waiting {
    color: var(--gray);
}

.status-check {
    color: var(--accent);
    animation: blink 0.5s infinite;
}

.status-gameover {
    color: var(--primary);
}

.status-draw {
    color: var(--warning);
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Sidebar */
.sidebar-section {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.sidebar-section h3 {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--primary);
    border-bottom: 1px solid var(--gray-light);
    padding-bottom: 0.5rem;
}

/* Moves List */
.moves-list {
    max-height: 300px;
    overflow-y: auto;
}

.moves-table {
    width: 100%;
    border-collapse: collapse;
}

.moves-table tr:nth-child(even) {
    background: var(--light);
}

.moves-table td {
    padding: 0.4rem 0.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.move-num {
    color: var(--gray);
    width: 30px;
}

.white-move,
.black-move {
    width: 70px;
    cursor: pointer;
}

.white-move:hover,
.black-move:hover {
    background: var(--secondary);
    color: white;
    border-radius: 3px;
}

.no-moves {
    color: var(--gray);
    text-align: center;
    font-style: italic;
    padding: 1rem;
}

/* Game Controls */
.game-controls {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.game-controls .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
}

.modal-overlay.hidden {
    display: none !important;
}

.modal-content {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Game Over Modal */
.game-over-content h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.game-result-icon {
    font-size: 4rem;
    margin: 1rem 0;
}

.game-result-text {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.game-result-stats {
    background: var(--light);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.game-result-stats .stat {
    display: flex;
    justify-content: space-between;
    padding: 0.25rem 0;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Promotion Modal */
.promotion-content h3 {
    margin-bottom: 1rem;
}

.promotion-pieces {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.promotion-piece {
    font-size: 3rem;
    background: var(--light);
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius);
    width: 70px;
    height: 70px;
    cursor: pointer;
    transition: var(--transition);
}

.promotion-piece:hover {
    background: var(--secondary);
    color: white;
    border-color: var(--secondary);
}

/* Responsive */
@media (max-width: 1100px) {
    .game-page {
        flex-direction: column;
        align-items: center;
    }
    
    .game-sidebar {
        width: 100%;
        max-width: 700px;
    }
}

@media (max-width: 600px) {
    .chess-board {
        grid-template-columns: repeat(8, 45px);
        grid-template-rows: repeat(8, 45px);
    }
    
    .square {
        width: 45px;
        height: 45px;
    }
    
    .piece {
        font-size: 36px;
    }
    
    .board-coords-top,
    .board-coords-bottom {
        width: 360px;
    }
    
    .board-coords-top span,
    .board-coords-bottom span {
        width: 45px;
    }
    
    .board-coords-left,
    .board-coords-right {
        height: 360px;
    }
    
    .board-coords-left span,
    .board-coords-right span {
        height: 45px;
    }
    
    .timer {
        font-size: 1.2rem;
        padding: 0.5rem 1rem;
    }
    
    .player-name {
        font-size: 1rem;
    }
    
    .player-avatar {
        width: 40px;
        height: 40px;
    }
}