:root {
    --primary: #ff0844;
    --secondary: #ffb700;
    --dark: #0a0e27;
    --darker: #05070f;
    --accent: #00d9ff;
    --success: #00ff88;
    --danger: #ff0844;
    --text: #e0e6ed;
    --text-dim: #8892a6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--darker);
    color: var(--text);
    overflow: hidden;
    height: 100vh;
}

/* Loading Screen */
#loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--darker);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--dark);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--text-dim);
    letter-spacing: 0.2em;
}

/* Main Menu */
#mainMenu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1d3a 50%, #0a0e27 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.menu-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 8, 68, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 217, 255, 0.1) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 6rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    text-shadow: 0 0 60px rgba(255, 8, 68, 0.5);
    position: relative;
    z-index: 1;
    letter-spacing: 0.1em;
}

.tagline {
    font-size: 1.4rem;
    color: var(--text-dim);
    margin-bottom: 3rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
}

.version-info {
    position: absolute;
    bottom: 20px;
    font-size: 0.9rem;
    color: var(--text-dim);
    letter-spacing: 0.2em;
}

.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.menu-btn {
    padding: 1.2rem 4rem;
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, #c70640 100%);
    border: 2px solid var(--primary);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    position: relative;
    overflow: hidden;
    font-family: 'Orbitron', sans-serif;
}

.menu-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.menu-btn:hover::before {
    left: 100%;
}

.menu-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(255, 8, 68, 0.5);
    border-color: var(--accent);
}

.menu-btn.secondary {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
}

.menu-btn.secondary:hover {
    background: var(--accent);
    color: var(--darker);
    box-shadow: 0 10px 40px rgba(0, 217, 255, 0.5);
}

/* Map Selection */
#mapSelect {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 7, 15, 0.98);
    z-index: 1000;
    padding: 40px;
    overflow-y: auto;
}

.section-title {
    text-align: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    color: var(--primary);
    margin: 40px 0;
    letter-spacing: 0.1em;
}

.map-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
    max-width: 1400px;
    margin: 0 auto;
}

.map-card {
    background: var(--dark);
    border: 3px solid transparent;
    padding: 25px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.map-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 8, 68, 0.1), transparent);
    transition: left 0.5s;
}

.map-card:hover::before {
    left: 100%;
}

.map-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(255, 8, 68, 0.4);
}

.map-card h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 10px;
}

.map-difficulty {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary);
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    letter-spacing: 0.1em;
}

/* Garage */
#garage {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 7, 15, 0.98);
    z-index: 1000;
}

.garage-container {
    display: flex;
    height: 100%;
    padding-top: 80px;
}

.garage-sidebar {
    width: 350px;
    background: var(--dark);
    border-right: 2px solid var(--primary);
    overflow-y: auto;
    padding: 20px;
}

.custom-category {
    margin-bottom: 25px;
}

.custom-category h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 15px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 8px;
}

.custom-option {
    background: rgba(255, 255, 255, 0.05);
    padding: 12px;
    margin: 8px 0;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
}

.custom-option:hover {
    background: rgba(255, 8, 68, 0.2);
    border-color: var(--primary);
}

.custom-option.locked {
    opacity: 0.4;
    cursor: not-allowed;
}

.custom-option.selected {
    border-color: var(--accent);
    background: rgba(0, 217, 255, 0.1);
}

.garage-viewer {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.viewer-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--primary);
    margin-bottom: 20px;
    font-size: 2rem;
}

#carPreview {
    width: 600px;
    height: 400px;
    background: var(--darker);
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.viewer-controls {
    margin-top: 20px;
    display: flex;
    gap: 15px;
}

.control-btn {
    padding: 10px 30px;
    font-size: 1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, #c70640 100%);
    border: none;
    color: white;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 0.1em;
}

.control-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 8, 68, 0.5);
}

.garage-tuning {
    width: 300px;
    background: var(--dark);
    border-left: 2px solid var(--primary);
    padding: 20px;
    overflow-y: auto;
}

.slider-control {
    margin: 20px 0;
}

.slider-control label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.slider-control input[type="range"] {
    width: 100%;
    height: 4px;
    background: var(--darker);
    outline: none;
    border-radius: 2px;
}

.slider-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--primary);
    cursor: pointer;
    border-radius: 50%;
}

.slider-control input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--primary);
    cursor: pointer;
    border-radius: 50%;
    border: none;
}

.stat-display {
    margin: 10px 0;
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.stat-bar {
    width: 100%;
    height: 8px;
    background: var(--darker);
    margin-top: 5px;
    position: relative;
    overflow: hidden;
}

.stat-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.3s;
}

/* Progress Panel */
#progressPanel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    max-height: 80vh;
    background: var(--dark);
    border: 3px solid var(--primary);
    padding: 30px;
    overflow-y: auto;
    z-index: 1001;
}

/* HUD */
#hud {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
}

.hud-top {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    gap: 20px;
}

.hud-panel {
    background: rgba(10, 14, 39, 0.85);
    border: 2px solid var(--primary);
    padding: 15px 25px;
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 30px rgba(255, 8, 68, 0.3);
}

.hud-stat {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 8px 0;
}

.hud-label {
    font-size: 0.9rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    min-width: 100px;
}

.hud-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
}

.speedometer {
    font-size: 3rem !important;
    color: var(--primary);
}

.hud-unit {
    font-size: 1.2rem;
    color: var(--text-dim);
}

.drift-meter {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.drift-angle-display {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    color: var(--secondary);
    text-shadow: 0 0 20px rgba(255, 183, 0, 0.8);
    margin-bottom: 10px;
}

.drift-status {
    font-size: 2rem;
    color: var(--success);
    text-shadow: 0 0 15px rgba(0, 255, 136, 0.6);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 0.2em;
}

.telemetry-panel {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 280px;
    background: rgba(10, 14, 39, 0.85);
    border: 2px solid var(--accent);
    padding: 15px;
    backdrop-filter: blur(10px);
}

.telemetry-title {
    color: var(--accent);
    margin-bottom: 10px;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 0.1em;
}

.telemetry-data {
    font-size: 0.85rem;
}

.telemetry-data div {
    margin: 5px 0;
}

.telemetry-data span {
    color: var(--success);
    font-weight: 700;
}

.controls-panel {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(10, 14, 39, 0.85);
    padding: 15px;
    border: 2px solid var(--primary);
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

.controls-panel strong {
    color: var(--primary);
    font-family: 'Orbitron', sans-serif;
    display: block;
    margin-bottom: 10px;
    letter-spacing: 0.1em;
}

.control-row {
    display: flex;
    gap: 10px;
    margin: 5px 0;
    align-items: center;
}

.key {
    display: inline-block;
    background: var(--darker);
    padding: 4px 8px;
    border: 1px solid var(--primary);
    min-width: 30px;
    text-align: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
}

/* Buttons */
.back-button {
    position: fixed;
    top: 30px;
    left: 30px;
    padding: 12px 30px;
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    z-index: 1001;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 0.1em;
}

.back-button:hover {
    background: var(--accent);
    color: var(--darker);
    box-shadow: 0 5px 20px rgba(0, 217, 255, 0.5);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 8px 16px;
    cursor: pointer;
    font-weight: 700;
    transition: all 0.2s;
    font-family: 'Orbitron', sans-serif;
}

.close-btn:hover {
    background: white;
    color: var(--dark);
}

/* Game Canvas */
#gameCanvas {
    width: 100%;
    height: 100%;
}

/* Responsive */
@media (max-width: 768px) {
    .logo { font-size: 3rem; }
    .tagline { font-size: 1rem; }
    .menu-btn { padding: 1rem 2rem; font-size: 1.1rem; }
    .garage-sidebar, .garage-tuning { width: 100%; }
    .garage-container { flex-direction: column; }
    .map-grid { grid-template-columns: 1fr; }
    .hud-top { flex-direction: column; }
}