/* CSS Variables for Theme Support */
:root {
    --primary-color: #3f51b5;
    --primary-dark: #303f9f;
    --primary-light: #c5cae9;
    --accent-color: #ff4081;
    --text-primary: #212121;
    --text-secondary: #757575;
    --background: #fafafa;
    --card-background: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --error-color: #f44336;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
}

[data-theme="dark"] {
    --primary-color: #7986cb;
    --primary-dark: #5c6bc0;
    --primary-light: #9fa8da;
    --accent-color: #ff80ab;
    --text-primary: #ffffff;
    --text-secondary: #b0bec5;
    --background: #121212;
    --card-background: #1e1e1e;
    --border-color: #424242;
    --shadow: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-hover: 0 4px 8px rgba(0,0,0,0.4);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    transition: all 0.3s ease;
    overflow-x: hidden;
}

/* Layout */
.page-content {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.game-container {
    display: grid;
    grid-template-columns: 250px 1fr 250px;
    gap: 20px;
    align-items: start;
    margin-bottom: 20px;
}

/* Cards */
.mdl-card {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.mdl-card:hover {
    box-shadow: var(--shadow-hover);
}

.mdl-card__title {
    background-color: var(--primary-color);
    color: white;
}

.mdl-card__title-text {
    font-weight: 500;
    font-size: 1.25rem;
}

/* Game Area */
.game-area {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

#gameCanvas {
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    background-color: var(--card-background);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

/* Overlays */
.game-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.3s ease;
}

.game-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.overlay-content {
    max-width: 300px;
    text-align: center;
    animation: slideIn 0.3s ease;
}

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

/* Score Display */
.score-display {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.score-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    color: var(--text-secondary);
}

.score-item i {
    color: var(--primary-color);
}

/* Control Panel */
.control-panel {
    text-align: center;
}

.control-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 20px;
    max-width: 150px;
    margin-left: auto;
    margin-right: auto;
}

.control-btn {
    background-color: var(--primary-color);
    color: white;
}

.control-btn:hover {
    background-color: var(--primary-dark);
}

.control-btn:nth-child(1) {
    grid-column: 2;
    grid-row: 1;
}

.control-btn:nth-child(2) {
    grid-column: 1;
    grid-row: 2;
}

.control-btn:nth-child(3) {
    grid-column: 2;
    grid-row: 2;
}

.control-btn:nth-child(4) {
    grid-column: 3;
    grid-row: 2;
}

.speed-control {
    margin-top: 20px;
}

.speed-control span {
    display: block;
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Mobile Controls */
.mobile-controls {
    display: none;
    justify-content: center;
    margin-top: 20px;
}

.mobile-dpad {
    display: grid;
    grid-template-columns: repeat(3, 60px);
    grid-template-rows: repeat(3, 60px);
    gap: 5px;
}

.dpad-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dpad-btn:hover {
    background-color: var(--primary-dark);
    transform: scale(1.05);
}

.dpad-btn:active {
    transform: scale(0.95);
}

.dpad-up {
    grid-column: 2;
    grid-row: 1;
}

.dpad-left {
    grid-column: 1;
    grid-row: 2;
}

.dpad-right {
    grid-column: 3;
    grid-row: 2;
}

.dpad-down {
    grid-column: 2;
    grid-row: 3;
}

/* Responsive Design */
@media (max-width: 768px) {
    .game-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .info-panel,
    .control-panel {
        order: 2;
    }
    
    .game-area {
        order: 1;
    }
    
    #gameCanvas {
        width: 100%;
        max-width: 350px;
        height: auto;
    }
    
    .mobile-controls {
        display: flex;
        order: 3;
    }
    
    .control-panel .control-buttons {
        display: none;
    }
}

@media (max-width: 480px) {
    .page-content {
        padding: 10px;
    }
    
    .game-container {
        gap: 10px;
    }
    
    #gameCanvas {
        max-width: 300px;
    }
    
    .mobile-dpad {
        grid-template-columns: repeat(3, 50px);
        grid-template-rows: repeat(3, 50px);
    }
}

/* Theme Toggle Animation */
#theme-toggle {
    transition: transform 0.3s ease;
}

#theme-toggle:hover {
    transform: rotate(180deg);
}

/* Button States */
.mdl-button--colored {
    background-color: var(--accent-color) !important;
}

.mdl-button--colored:hover {
    background-color: var(--primary-dark) !important;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--primary-light);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Game Effects */
.pulse {
    animation: pulse 0.3s ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

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

/* Focus Styles */
.mdl-button:focus,
.dpad-btn:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-secondary: #000000;
    }
    
    [data-theme="dark"] {
        --border-color: #ffffff;
        --text-secondary: #ffffff;
    }
}