/* Modern Racing Championship Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-gradient: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    --secondary-gradient: linear-gradient(135deg, #7f1d1d 0%, #991b1b 100%);
    --accent-gradient: linear-gradient(135deg, #064e3b 0%, #065f46 100%);
    --racing-gradient: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    --speed-gradient: linear-gradient(135deg, #059669 0%, #047857 100%);
    --dark-bg: #000000;
    --card-bg: rgba(10, 10, 10, 0.95);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #e5e5e5;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --shadow-light: 0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-heavy: 0 8px 24px rgba(0, 0, 0, 0.7);
    --border-radius: 6px;
    --transition: all 0.2s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
}

/* Dark Racing Background */
.racing-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 40% 60%, #1a1a1a 0%, #000000 50%, #0a0a0a 100%);
}

/* Game Container */
#gameContainer {
    width: 100vw;
    height: 100vh;
    position: relative;
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
}

.screen.active {
    display: flex;
}

/* Main Menu Styles */
#mainMenu {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(20px);
}

.menu-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255, 107, 107, 0.1) 0%, transparent 70%);
}

.menu-content {
    max-width: 900px;
    width: 90%;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-heavy);
    text-align: center;
    max-height: 85vh;
    overflow-y: auto;
}

.menu-header {
    margin-bottom: 2rem;
}

.game-title {
    font-family: 'Orbitron', monospace;
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.title-icon {
    font-size: 1.2em;
    animation: pulse 2s infinite;
}

.title-text {
    background: var(--racing-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.game-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.selection-section {
    margin-bottom: 2rem;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Car Selection */
.car-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.car-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1rem;
    border: 1px solid var(--card-border);
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.car-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-light);
    border-color: rgba(255, 255, 255, 0.3);
}

.car-card.selected {
    border-color: var(--racing-gradient);
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(254, 202, 87, 0.1));
}

.car-preview {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.car-info {
    width: 100%;
}

.car-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.car-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.car-stats {
    display: flex;
    flex-direction: row;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: space-between;
}

.stat-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    min-width: 80px;
    text-align: left;
}

.stat-fill {
    height: 6px;
    background: var(--racing-gradient);
    border-radius: 3px;
    transition: var(--transition);
}

/* Track Selection */
.track-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.track-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1rem;
    border: 1px solid var(--card-border);
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.track-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-light);
    border-color: rgba(255, 255, 255, 0.3);
}

.track-card.selected {
    border-color: var(--accent-gradient);
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.1), rgba(0, 242, 254, 0.1));
}

.track-preview {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.track-info {
    width: 100%;
}

.track-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.track-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.track-details {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.detail-item {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* Game Screen */
#gameScreen {
    display: none;
    flex-direction: row;
    padding: 0;
}

#gameScreen.active {
    display: flex !important;
}

.race-hud {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    pointer-events: none;
}

.race-hud > * {
    pointer-events: auto;
}

.hud-left {
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.hud-center {
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
}

.hud-right {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.hud-bottom {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
}

/* Speedometer */
.speedometer-panel {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
}

.speedometer {
    position: relative;
    width: 100px;
    height: 100px;
}

.speed-gauge {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: conic-gradient(
        from 180deg,
        var(--success-color) 0deg,
        var(--warning-color) 120deg,
        var(--danger-color) 180deg
    );
    padding: 8px;
}

.speed-gauge::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    background: var(--dark-bg);
    border-radius: 50%;
}

.speed-needle {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 2px;
    height: 40px;
    background: var(--text-primary);
    transform-origin: bottom center;
    transform: translate(-50%, -100%) rotate(-90deg);
    transition: transform 0.1s ease;
    z-index: 2;
}

.speed-markers {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.marker {
    position: absolute;
    top: 10px;
    left: 50%;
    transform-origin: 50% 50px;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.speed-display {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 3;
}

.speed-number {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}

.speed-unit {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Race Info Panel */
.race-info-panel {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    min-width: 240px;
}

.race-stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.stat-icon {
    font-size: 1.2rem;
}

.stat-label {
    color: var(--text-secondary);
    min-width: 50px;
}

.stat-value {
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Orbitron', monospace;
}

/* Minimap Panel */
.minimap-panel {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
}

.panel-title {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
    text-align: center;
}

#minimapCanvas {
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.5);
}

/* Controls Info */
.controls-info {
    display: flex;
    gap: 0.75rem;
    background: var(--card-bg);
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
}

.control-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
}

kbd {
    background: rgba(0, 0, 0, 0.5);
    padding: 0.15rem 0.35rem;
    border-radius: 3px;
    font-size: 0.6rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Game Canvas */
#gameCanvas {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-heavy);
    background: radial-gradient(circle at center, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.9) 100%);
}

/* Countdown Overlay */
.countdown-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 200;
}

.countdown-overlay.hidden {
    display: none;
}

.countdown-content {
    text-align: center;
}

.countdown-number {
    font-family: 'Orbitron', monospace;
    font-size: 8rem;
    font-weight: 900;
    background: var(--racing-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: countdownPulse 1s ease-in-out;
}

.countdown-text {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-top: 1rem;
}

@keyframes countdownPulse {
    0% { transform: scale(0.5); opacity: 0; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

/* Game Over Screen */
#gameOverScreen {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(20px);
}

.results-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255, 107, 107, 0.1) 0%, transparent 70%);
}

.results-content {
    max-width: 600px;
    width: 90%;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-heavy);
    text-align: center;
    max-height: 85vh;
    overflow-y: auto;
}

.results-header {
    margin-bottom: 2rem;
}

.results-title {
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--racing-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.results-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.final-position {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.position-icon {
    font-size: 3rem;
}

.position-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.position-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.position-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: 'Orbitron', monospace;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-card .stat-icon {
    font-size: 1.5rem;
}

.stat-card .stat-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.stat-card .stat-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Orbitron', monospace;
}

.leaderboard-section {
    margin-bottom: 2rem;
}

.leaderboard-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.leaderboard-list {
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

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

/* Buttons */
.btn-primary {
    background: var(--racing-gradient);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 0.5rem 1.5rem;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 107, 107, 0.4);
}

.btn-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.btn-primary:hover .btn-glow {
    left: 100%;
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--card-bg);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .menu-content {
        padding: 1.5rem;
    }
    
    .car-grid,
    .track-grid {
        grid-template-columns: 1fr;
    }
    
    .race-info-panel {
        grid-template-columns: 1fr;
        min-width: 200px;
    }
    
    .hud-left,
    .hud-center,
    .hud-right {
        position: relative;
        top: auto;
        left: auto;
        right: auto;
        transform: none;
        margin-bottom: 1rem;
    }
    
    .race-hud {
        padding: 1rem;
        display: flex;
        flex-direction: column;
    }
    
    .hud-bottom {
        position: relative;
        bottom: auto;
        left: auto;
        transform: none;
        margin-top: auto;
    }
    
    .controls-info {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .results-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .game-title {
        font-size: 2rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .speedometer {
        width: 100px;
        height: 100px;
    }
    
    .speed-number {
        font-size: 1.2rem;
    }
    
    .countdown-number {
        font-size: 6rem;
    }
    
    .results-content {
        padding: 1.5rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .racing-bg {
        animation: none;
    }
}

/* Focus states */
button:focus,
.car-card:focus,
.track-card:focus {
    outline: 2px solid var(--accent-gradient);
    outline-offset: 2px;
}.ra
cing-side-panel {
    width: 200px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
    overflow-y: auto;
}

.racing-main-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.race-stats-row {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.race-stats-row > * {
    flex: 1;
    min-width: 80px;
}