* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Orbitron', sans-serif;
    user-select: none;
}

body, html {
    width: 100%;
    height: 100%;
    background-color: #05050a;
    overflow: hidden;
    color: #fff;
}

#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at center, #1a1a2e 0%, #05050a 100%);
}

#game-container canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* UI Layer over the canvas */
#ui-layer {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 500px;
    height: 100%;
    max-height: 800px;
    pointer-events: none;
    display: flex;
    flex-direction: column;
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    pointer-events: auto;
    transition: opacity 0.3s ease, transform 0.3s ease;
    background: rgba(5, 5, 10, 0.85); /* Semi-transparent so we can see 3D scene */
    backdrop-filter: blur(5px); /* Reduced blur for 3D view */
    z-index: 10;
}

.screen.hidden {
    display: none !important;
    pointer-events: none !important;
    opacity: 0 !important;
    transform: scale(0.95);
    z-index: -1 !important;
}

.screen.active {
    display: flex !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    transform: scale(1);
    z-index: 50 !important;
}

/* HUD elements shouldn't have background blur */
#hud {
    background: transparent;
    backdrop-filter: none;
    pointer-events: none;
    justify-content: flex-start;
}

/* Titles */
.title-container {
    text-align: center;
    margin-bottom: 50px;
}

h1 {
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: 5px;
    margin: 0;
    text-shadow: 0 0 10px rgba(255,255,255,0.3);
}

.neon-text {
    color: #00f3ff;
    text-shadow: 0 0 5px #00f3ff, 0 0 15px #00f3ff, 0 0 30px #00f3ff;
}

.subtitle {
    font-size: 1.2rem;
    color: #aaa;
    letter-spacing: 2px;
    margin-top: -10px;
}

h2 {
    font-size: 2.5rem;
    color: #ff0055;
    text-shadow: 0 0 10px #ff0055, 0 0 20px #ff0055;
    margin-bottom: 30px;
    letter-spacing: 3px;
}

/* Buttons */
.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 80%;
    max-width: 300px;
}

.action-btn {
    padding: 15px 30px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    overflow: hidden;
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

.action-btn:active {
    transform: translateY(1px);
}

.glow-btn {
    border-color: #00f3ff;
    background: rgba(0, 243, 255, 0.1);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.3) inset;
}

.glow-btn:hover {
    background: rgba(0, 243, 255, 0.2);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.5) inset, 0 0 20px rgba(0, 243, 255, 0.5);
    text-shadow: 0 0 5px #fff;
}

.secondary {
    border-color: #555;
    color: #aaa;
}

.secondary:hover {
    color: #fff;
    border-color: #888;
}

/* Garage */
.car-showcase {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0 20px;
    margin-bottom: 30px;
}

.nav-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 2.5rem;
    cursor: pointer;
    transition: transform 0.2s, color 0.2s;
    text-shadow: 0 0 10px rgba(255,255,255,0.5);
}

.nav-btn:hover {
    transform: scale(1.2);
    color: #00f3ff;
}

.car-info {
    width: 80%;
    background: rgba(0,0,0,0.5);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 30px;
}

#car-name {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #fff;
    letter-spacing: 2px;
}

.stat-bar {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.stat-bar span {
    width: 80px;
    font-size: 0.9rem;
    color: #aaa;
}

.bar-bg {
    flex-grow: 1;
    height: 10px;
    background: #222;
    border-radius: 5px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #ff0055, #ffcc00);
    border-radius: 5px;
    transition: width 0.3s ease;
}

.garage-actions {
    display: flex;
    gap: 15px;
    width: 80%;
}

.garage-actions .action-btn {
    flex: 1;
    font-size: 1.2rem;
    padding: 12px 15px;
}

/* HUD */
.hud-top {
    position: absolute;
    top: 20px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    pointer-events: auto; /* allow clicks if we want a pause button later */
}

/* Game Over */
.final-score {
    text-align: center;
    margin-bottom: 40px;
}

.final-score p {
    color: #aaa;
    font-size: 1.2rem;
    letter-spacing: 2px;
}

#final-score-val {
    font-size: 4rem;
    color: #ffcc00;
    text-shadow: 0 0 20px rgba(255, 204, 0, 0.5);
    margin: 0;
}

/* --- Mobile Responsive Rules --- */
@media (max-width: 768px) {
    h1 { font-size: 2.8rem; letter-spacing: 3px; }
    h2 { font-size: 2rem; }
    .subtitle { font-size: 0.95rem; }
    .action-btn { padding: 14px 24px; font-size: 1.25rem; }
    .score-display, .speed-display { font-size: 1.2rem; }
    .key-hints { top: auto; bottom: 110px; right: 50%; transform: translateX(50%); font-size: 0.75rem; padding: 4px 10px; }
    .pedal-btn { width: 72px; height: 72px; }
    .car-info { width: 90%; padding: 15px; }
    .garage-actions { width: 90%; }
}

@media (max-height: 600px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.6rem; margin-bottom: 15px; }
    .title-container { margin-bottom: 15px; }
    .pedal-btn { width: 62px; height: 62px; }
    .pedal-icon { font-size: 1.3rem; }
    .touch-pedals { bottom: 10px; }
    .hud-top { top: 10px; }
    .car-showcase { margin-bottom: 10px; }
    .car-display-spacer { height: 160px !important; }
}