:root {
    --bg-dark: #070913;
    --glass-bg: rgba(15, 23, 42, 0.65);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-muted: #94a3b8;
    --accent-cyan: #22d3ee;
    --accent-pink: #f43f5e;
    --accent-yellow: #facc15;
    --neon-shadow: 0 0 15px rgba(34, 211, 238, 0.4);
    --font-sans: 'Outfit', sans-serif;
    --font-retro: 'Press Start 2P', monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

body {
    background: radial-gradient(circle at 50% 50%, #1e1b4b 0%, var(--bg-dark) 100%);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100dvh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

#game-container {
    position: relative;
    width: 100%;
    height: 100dvh;
    overflow: hidden;
    box-shadow: inset 0 0 100px rgba(0, 0, 0, 0.8);
    background: #000;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Overlays */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(7, 9, 19, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    transition: opacity 0.3s ease;
}

.overlay-content {
    width: 85%;
    max-width: 600px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 35px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.hidden {
    opacity: 0;
    pointer-events: none;
    display: none !important;
}

/* Logos & Headers */
.game-logo {
    font-family: var(--font-retro);
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 5px;
    display: flex;
    justify-content: center;
    gap: 5px;
}

.logo-retro {
    background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}

.logo-accent {
    background: linear-gradient(180deg, var(--accent-cyan) 0%, #0891b2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 8px rgba(34, 211, 238, 0.6));
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 6px;
    margin-bottom: 25px;
}

.instructions {
    text-align: left;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 25px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.instructions p {
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 15px;
}

.checkpoints-list {
    background: rgba(34, 211, 238, 0.05);
    border: 1px solid rgba(34, 211, 238, 0.15);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 15px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--accent-cyan);
}

.controls-card {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 15px;
}

.controls-card h3 {
    font-size: 0.9rem;
    color: var(--accent-pink);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.controls-card p {
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Buttons */
.menu-btn {
    font-family: var(--font-retro);
    font-size: 1rem;
    background: linear-gradient(135deg, var(--accent-cyan) 0%, #0891b2 100%);
    color: #000;
    border: none;
    padding: 15px 35px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s ease;
    box-shadow: 0 0 15px rgba(34, 211, 238, 0.3);
}

.menu-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px rgba(34, 211, 238, 0.6);
    background: linear-gradient(135deg, #67e8f9 0%, var(--accent-cyan) 100%);
}

.menu-btn:active {
    transform: scale(0.98);
}

/* HUD Styling */
#hud {
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 5;
}

.hud-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    padding: 10px 18px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 110px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.hud-label {
    font-family: var(--font-retro);
    font-size: 0.55rem;
    color: var(--text-muted);
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.hud-value {
    font-family: var(--font-retro);
    font-size: 1.2rem;
    color: #fff;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
}

#hud-time .hud-value {
    color: var(--accent-yellow);
    text-shadow: 0 0 10px rgba(250, 204, 21, 0.3);
}

#hud-speed .hud-value {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px rgba(34, 211, 238, 0.3);
}

.hud-unit {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-family: var(--font-sans);
    margin-top: -2px;
}

/* Custom Overlays Details */
.danger-title {
    font-family: var(--font-retro);
    color: var(--accent-pink);
    font-size: 2rem;
    margin-bottom: 15px;
    text-shadow: 0 0 15px rgba(244, 63, 94, 0.4);
}

.victory-title {
    font-family: var(--font-retro);
    color: #10b981;
    font-size: 2rem;
    margin-bottom: 15px;
    text-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}

.stats-box {
    background: rgba(0, 0, 0, 0.55);
    border-radius: 16px;
    padding: 20px;
    margin: 25px auto;
    width: 90%;
    max-width: 420px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.stats-box p {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 12px 0;
    color: var(--text-muted);
    font-size: 0.95rem;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
    padding-bottom: 8px;
}

.stats-box p:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.stats-box span {
    font-family: var(--font-retro);
    color: #fff;
    font-size: 0.75rem; /* Compact retro font size to avoid wrapping overlaps */
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

/* --- Mobile Controls Styling --- */
#mobile-controls {
    position: absolute;
    bottom: 25px;
    left: 0;
    right: 0;
    display: none;
    justify-content: space-between;
    padding: 0 35px;
    pointer-events: none;
    z-index: 15;
}

.touch-btn {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: rgba(15, 23, 42, 0.55);
    border: 2px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 1.8rem;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: auto;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    transition: background 0.1s, transform 0.1s;
}

.touch-btn:active {
    background: rgba(34, 211, 238, 0.6);
    border-color: #22d3ee;
    transform: scale(0.92);
}

.touch-btn.brake-btn {
    font-size: 0.85rem;
    font-family: var(--font-retro);
    background: rgba(244, 63, 94, 0.45);
    border-color: rgba(244, 63, 94, 0.3);
}

.touch-btn.brake-btn:active {
    background: rgba(244, 63, 94, 0.85);
    border-color: #f43f5e;
}

.touch-btn.gas-btn {
    font-size: 0.85rem;
    font-family: var(--font-retro);
    background: rgba(34, 211, 238, 0.45);
    border-color: rgba(34, 211, 238, 0.3);
}

.touch-btn.gas-btn:active {
    background: rgba(34, 211, 238, 0.85);
    border-color: #22d3ee;
}

.control-group {
    display: flex;
    gap: 20px;
    pointer-events: none;
}

/* Display only on touch screens */
@media (pointer: coarse) {
    #mobile-controls {
        display: flex;
    }
}

/* --- Responsive mobile scaling for landscape mode --- */
@media (max-height: 480px) and (orientation: landscape) {
    .touch-btn {
        width: 76px;
        height: 76px;
        font-size: 1.5rem;
    }
    .touch-btn.brake-btn,
    .touch-btn.gas-btn {
        font-size: 0.75rem;
    }
    #mobile-controls {
        bottom: 15px;
        padding: 0 20px;
    }
}

#rotate-device {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(7, 9, 19, 0.95);
    backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 100;
}

.rotate-icon {
    font-size: 4rem;
    margin-bottom: 25px;
    animation: rotate-pulse 1.8s infinite ease-in-out;
}

@keyframes rotate-pulse {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(-90deg) scale(1.15); }
    100% { transform: rotate(0deg) scale(1); }
}

@media (max-width: 1024px) and (pointer: coarse) and (orientation: portrait) {
    #rotate-device {
        display: flex;
    }
}

/* Toast Notifications */
.toast {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(16, 185, 129, 0.9);
    border: 2px solid #34d399;
    border-radius: 16px;
    padding: 20px 40px;
    text-align: center;
    color: #fff;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
    animation: toast-in-out 2.5s forwards;
    pointer-events: none;
    z-index: 8;
}

.toast-title {
    font-family: var(--font-retro);
    font-size: 1.2rem;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.toast-subtitle {
    font-size: 0.95rem;
    font-weight: 600;
}

@keyframes toast-in-out {
    0% { transform: translate(-50%, -100%) scale(0.8); opacity: 0; }
    15% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
    20% { transform: translate(-50%, -50%) scale(1.0); opacity: 1; }
    80% { transform: translate(-50%, -50%) scale(1.0); opacity: 1; }
    100% { transform: translate(-50%, -30%) scale(0.9); opacity: 0; }
}

/* --- Max height overrides to fit menu overlays on short landscape screens --- */
@media (max-height: 480px) {
    .overlay-content {
        padding: 14px 20px !important;
        max-width: 480px !important;
        border-radius: 16px !important;
    }
    .game-logo {
        font-size: 1.5rem !important;
        margin-bottom: 2px !important;
    }
    .subtitle {
        font-size: 0.75rem !important;
        margin-bottom: 8px !important;
        letter-spacing: 3px !important;
    }
    .instructions {
        padding: 8px 12px !important;
        margin-bottom: 10px !important;
    }
    .instructions p {
        font-size: 0.8rem !important;
        margin-bottom: 6px !important;
        line-height: 1.3 !important;
    }
    .checkpoints-list {
        font-size: 0.7rem !important;
        padding: 4px !important;
        margin-bottom: 6px !important;
    }
    .controls-card {
        padding-top: 6px !important;
    }
    .controls-card h3 {
        font-size: 0.7rem !important;
        margin-bottom: 2px !important;
    }
    .controls-card p {
        font-size: 0.7rem !important;
        margin-bottom: 1px !important;
    }
    .menu-btn {
        padding: 8px 25px !important;
        font-size: 0.8rem !important;
        border-radius: 8px !important;
    }
    .stats-box {
        padding: 8px !important;
        margin: 10px auto !important;
    }
    .stats-box p {
        margin: 4px 0 !important;
        font-size: 0.75rem !important;
    }
    .danger-title, .victory-title {
        font-size: 1.4rem !important;
        margin-bottom: 8px !important;
    }
}