/**
 * Tic-Tac-Toe Game - Styles
 * File: /qmbportal/quizzes/assets/css/tictactoe.css
 * 
 * Clean, elegant design using the QMB color palette
 */

/* Import base styles */
@import url('components/utilities.css');
@import url('components/header.css');
@import url('components/modal.css');

/* Body styling for letter tracing page */
body {
    background: linear-gradient(135deg, #112167 0%, #2c3e50 100%);
    min-height: 100vh;
    padding: var(--spacing-xl);
    
    /* Enhanced mobile scrolling */
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    scroll-behavior: smooth;
}

/* Main container with performance optimizations */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    position: relative;
    
    /* GPU acceleration */
    will-change: transform;
    transform: translateZ(0);
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, 
        var(--primary-blue), 
        var(--accent-pink), 
        var(--accent-green), 
        var(--accent-orange)
    );
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}
/* ========================================
   GAME CONTAINER
   ======================================== */
.game-container {
    min-height: 70vh;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--radius-xl);
    position: relative;
}

/* Screen management */
.screen {
    display: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.screen.active {
    display: block;
    opacity: 1;
    animation: fadeIn var(--transition-normal) ease-out;
}

/* ========================================
   SETUP SCREEN
   ======================================== */
.setup-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}
.game-title,
.mode-selection h2,
.difficulty-selection h2 {
    font-family: 'Press Start 2P', cursive;
    font-size: 1.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}
.game-title {
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.title-icon {
    font-size: 3rem;
    animation: pulse 2s infinite;
}

.game-subtitle {
    font-size: 1.2rem;
    color: var(--medium-gray);
    font-weight: 500;
}

/* Mode Selection */
.mode-selection,
.difficulty-selection {
    margin-bottom: var(--spacing-2xl);
}

.mode-selection h2,
.difficulty-selection h2 {
    text-align: center;
    font-size: 1.5rem;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-lg);
}

.mode-cards,
.difficulty-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.mode-card,
.difficulty-card {
    background: white;
    border: 3px solid #e2e8f0;
    border-radius: var(--radius-xl);
    font-family: 'Orbitron', sans-serif;
    padding: var(--spacing-lg); /* Reduced padding */
    min-height: auto; /* Remove fixed height */
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.mode-card::before,
.difficulty-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--golden) 0%, var(--golden-dark) 100%);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.mode-card:hover,
.difficulty-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.mode-card.selected,
.difficulty-card.selected {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-color: var(--golden-dark);
}

.mode-card.selected::before,
.difficulty-card.selected::before {
    transform: scaleX(1);
}

.mode-icon,
.diff-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.mode-card h3,
.difficulty-card h3 {
    font-size: 1rem;
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xs);
}

.mode-card p,
.difficulty-card p {
    font-size: 0.85rem;
    color: var(--medium-gray);
}

.beta-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--orange);
    color: white;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
}

.stars {
    color: var(--golden);
    font-size: 1.2rem;
    margin-top: var(--spacing-sm);
}

/* Primary Button */
.primary-btn,
.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-2xl);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: var(--font-primary);
    margin: 0 auto;
    display: flex;
}

.primary-btn {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #2563eb 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.secondary-btn {
    background: linear-gradient(135deg, var(--golden) 0%, var(--golden-dark) 100%);
    color: var(--dark-gray);
}

.secondary-btn:hover {
    transform: scale(1.05);
}

/* Player List */
.player-list {
    margin-bottom: var(--spacing-xl);
}

.player-list h2 {
    text-align: center;
    font-size: 1.5rem;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-lg);
}

.players-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.player-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-normal);
}

.player-card.available {
    border-color: var(--accent-green);
}

.player-card.in-game {
    opacity: 0.6;
    border-color: var(--medium-gray);
}

.player-avatar {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.player-name {
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xs);
}

.player-status {
    font-size: 0.85rem;
    color: var(--medium-gray);
    margin-bottom: var(--spacing-sm);
}

.challenge-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.challenge-btn:hover {
    background: #2563eb;
    transform: scale(1.05);
}

.network-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: var(--medium-gray);
    font-size: 0.95rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--danger);
    animation: pulse 2s infinite;
}

/* ========================================
   GAME SCREEN
   ======================================== */
.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.back-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--light-gray);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--dark-gray);
    transition: all var(--transition-fast);
}

.back-btn:hover {
    background: var(--medium-gray);
    color: white;
    transform: translateX(-3px);
}

.game-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
}
.player-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-normal);
}

.player-info.active {
    background: linear-gradient(135deg, var(--golden-light) 0%, var(--golden) 100%);
    transform: scale(1.05);
}

.player-symbol {
    font-size: 1.5rem;
    font-weight: 900;
}

.player-name {
    font-weight: 600;
    color: var(--dark-gray);
}

.score {
    background: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-weight: 700;
    color: var(--primary-blue);
    min-width: 30px;
    text-align: center;
}

.vs-text {
    font-weight: 900;
    color: var(--medium-gray);
    font-size: 1.2rem;
}

/* Turn Indicator */
.turn-indicator {
    text-align: center;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    animation: slideInDown var(--transition-normal) ease-out;
}

/* Fork Hint */
.fork-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border: 2px solid #60a5fa;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    color: #1e40af;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.fork-hint.success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border-color: var(--accent-green);
    color: #065f46;
}

.fork-hint.warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-color: var(--golden-dark);
    color: #92400e;
}

/* Game Board */
.game-board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    max-width: 400px;
    margin: 0 auto var(--spacing-xl);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.board-cell {
    aspect-ratio: 1;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 3px solid #cbd5e1;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 900;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.board-cell:hover:not(.x-symbol):not(.o-symbol) {
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    border-color: var(--primary-blue);
    transform: scale(1.05);
}

.board-cell.x-symbol {
    color: #dc2626;
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border-color: #f87171;
}

.board-cell.o-symbol {
    color: #2563eb;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-color: #60a5fa;
}

.board-cell.winner {
    background: linear-gradient(135deg, var(--golden-light) 0%, var(--golden) 100%) !important;
    border-color: var(--accent-green) !important;
    animation: winnerPulse 0.5s ease-out;
}

.board-cell.highlight {
    animation: highlightCell 1s ease-out;
}

.board-cell.cell-placed {
    animation: placePiece 0.3s ease-out;
}

@keyframes winnerPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

@keyframes highlightCell {
    0%, 100% { background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%); }
    50% { background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%); }
}

@keyframes placePiece {
    0% { transform: scale(0) rotate(180deg); opacity: 0; }
    50% { transform: scale(1.1) rotate(90deg); }
    100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

/* Game Controls */
.game-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* Challenge Modal */
.challenge-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    text-align: center;
}

.challenge-content h3 {
    font-size: 1.5rem;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
}

.challenge-content p {
    color: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
}

.challenge-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.accept-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--accent-green);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 700;
}

.decline-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--danger);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 700;
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* New game layout with three columns */
.game-layout {
    display: grid;
    grid-template-columns: 200px 1fr 250px;
    gap: var(--spacing-xl);
    align-items: start;
}

/* Symbol selection panel */
.symbol-selection {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.symbol-selection h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.symbol-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.symbol-draggable {
    width: 100px;
    height: 100px;
    margin: 0 auto;
    cursor: grab;
    transition: all var(--transition-normal);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 3px solid #cbd5e1;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
}

.symbol-draggable:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.symbol-draggable.dragging {
    cursor: grabbing;
    opacity: 0.5;
}

.x-svg, .o-svg {
    width: 100%;
    height: 100%;
}

.symbol-info {
    text-align: center;
    font-size: 0.85rem;
    color: var(--medium-gray);
    font-style: italic;
}

/* Board section stays centered */
.board-section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Sidebar for game info */
.game-sidebar {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.player-scores {
    margin-top: var(--spacing-lg);
}

.vs-divider {
    text-align: center;
    font-weight: 900;
    color: var(--medium-gray);
    margin: var(--spacing-md) 0;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .game-container {
        padding: var(--spacing-md);
    }
    
    .game-title {
        font-size: 2rem;
    }
    
    .mode-cards,
    .difficulty-cards {
        grid-template-columns: 1fr;
    }
    
    .game-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .game-info {
        flex-direction: column;
        gap: var(--spacing-md);
        width: 100%;
    }
    
    .player-info {
        width: 100%;
        justify-content: space-between;
    }
    
    .game-board {
        max-width: 300px;
        padding: var(--spacing-md);
        gap: 8px;
    }
    
    .board-cell {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .game-title {
        font-size: 1.5rem;
        flex-direction: column;
    }
    
    .title-icon {
        font-size: 2rem;
    }
    
    .mode-icon,
    .diff-icon {
        font-size: 2.5rem;
    }
    
    .game-board {
        max-width: 250px;
        gap: 6px;
    }
    
    .board-cell {
        font-size: 2rem;
        border-width: 2px;
    }
    
    .turn-indicator {
        font-size: 1.1rem;
        padding: var(--spacing-sm);
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
.board-cell:focus-visible {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

.mode-card:focus-visible,
.difficulty-card:focus-visible {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .game-container {
        background: white !important;
    }
    
    .back-btn,
    .game-controls,
    .network-status {
        display: none !important;
    }
    
    .game-board {
        box-shadow: none !important;
        border: 2px solid black !important;
    }
}