:root {
    --retro-orange: #ff6600;
    --retro-cyan: #00ffff;
    --retro-magenta: #ff3366;
    --retro-green: #33ff66;
    --dark-bg: #0a0a12;
    --panel-bg: rgba(10, 10, 18, 0.95);
}

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

body {
    font-family: 'VT323', monospace;
    background: var(--dark-bg);
    color: #fff;
    overflow: hidden;
    cursor: crosshair;
}

#scene-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#hud-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

#hud-top {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.hud-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--retro-orange);
    text-shadow: 0 0 10px var(--retro-orange), 0 0 20px var(--retro-orange);
    letter-spacing: 0.3em;
    animation: flicker 3s infinite;
}

@keyframes flicker {
    0%, 100% { opacity: 1; }
    92% { opacity: 1; }
    93% { opacity: 0.8; }
    94% { opacity: 1; }
    95% { opacity: 0.9; }
    96% { opacity: 1; }
}

#controls-panel {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--panel-bg);
    border: 2px solid var(--retro-orange);
    border-radius: 8px;
    padding: 15px 25px;
    z-index: 100;
    box-shadow: 
        0 0 20px rgba(255, 102, 0, 0.3),
        inset 0 0 30px rgba(0, 0, 0, 0.5);
}

#controls-panel::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 20px;
    right: 20px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--retro-cyan), transparent);
}

#tuning-control,
#volume-control {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

#controls-panel label {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    color: var(--retro-cyan);
    letter-spacing: 0.2em;
}

#tuning-dial,
#volume-slider {
    width: 120px;
    height: 8px;
    -webkit-appearance: none;
    background: linear-gradient(90deg, #1a1a2e, var(--retro-orange));
    border-radius: 4px;
    outline: none;
    cursor: pointer;
}

#tuning-dial::-webkit-slider-thumb,
#volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: linear-gradient(145deg, #fff, #888);
    border-radius: 50%;
    cursor: grab;
    box-shadow: 0 0 10px var(--retro-orange);
    border: 2px solid var(--retro-orange);
}

#tuning-dial::-webkit-slider-thumb:active,
#volume-slider::-webkit-slider-thumb:active {
    cursor: grabbing;
}

#preset-buttons {
    display: flex;
    gap: 8px;
}

.preset {
    width: 40px;
    height: 32px;
    background: linear-gradient(180deg, #2a2a3a 0%, #1a1a2a 100%);
    border: 2px solid #3a3a4a;
    border-radius: 4px;
    color: #666;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.15s;
}

.preset:hover {
    border-color: var(--retro-cyan);
    color: var(--retro-cyan);
    box-shadow: 0 0 10px var(--retro-cyan);
}

.preset.active {
    background: linear-gradient(180deg, var(--retro-orange) 0%, #cc5500 100%);
    border-color: var(--retro-orange);
    color: #000;
    box-shadow: 0 0 15px var(--retro-orange);
}

#action-buttons {
    display: flex;
    gap: 8px;
    margin-left: 10px;
    padding-left: 15px;
    border-left: 1px solid #333;
}

#action-buttons button {
    width: 36px;
    height: 36px;
    background: linear-gradient(180deg, #1a1a2a 0%, #0a0a15 100%);
    border: 2px solid #3a3a4a;
    border-radius: 6px;
    color: var(--retro-cyan);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

#action-buttons button:hover {
    background: var(--retro-cyan);
    color: #000;
    box-shadow: 0 0 15px var(--retro-cyan);
}

#settings-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#settings-modal.hidden {
    display: none;
}

#settings-content {
    background: linear-gradient(145deg, #1a1020 0%, #0a0810 100%);
    border: 2px solid var(--retro-orange);
    border-radius: 10px;
    padding: 30px;
    min-width: 280px;
    box-shadow: 
        0 0 40px rgba(255, 102, 0, 0.4),
        inset 0 0 20px rgba(0, 0, 0, 0.5);
}

#settings-content h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--retro-orange);
    text-shadow: 0 0 10px var(--retro-orange);
    margin-bottom: 25px;
    text-align: center;
    letter-spacing: 0.2em;
}

.setting-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 102, 0, 0.2);
}

.setting-row label {
    color: #aaa;
    font-size: 1.1rem;
}

.setting-row input[type="range"] {
    width: 120px;
    accent-color: var(--retro-orange);
}

#close-settings {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 2px solid var(--retro-cyan);
    color: var(--retro-cyan);
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 15px;
    transition: all 0.2s;
    letter-spacing: 0.1em;
}

#close-settings:hover {
    background: var(--retro-cyan);
    color: #000;
    box-shadow: 0 0 20px var(--retro-cyan);
}

#footer {
    position: fixed;
    bottom: 5px;
    right: 10px;
    z-index: 50;
    font-size: 0.7rem;
}

#footer a {
    color: var(--retro-orange);
    text-decoration: none;
    opacity: 0.4;
    transition: opacity 0.2s;
}

#footer a:hover {
    opacity: 1;
    text-shadow: 0 0 10px var(--retro-orange);
}

/* Scanline overlay effect */
#scene-container::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.1) 2px,
        rgba(0, 0, 0, 0.1) 4px
    );
    pointer-events: none;
    z-index: 5;
}

/* Mobile responsive */
@media (max-width: 768px) {
    #controls-panel {
        flex-wrap: wrap;
        justify-content: center;
        width: 90%;
        padding: 12px 15px;
        gap: 12px;
    }
    
    #tuning-dial,
    #volume-slider {
        width: 80px;
    }
    
    .preset {
        width: 34px;
        height: 28px;
        font-size: 0.8rem;
    }
    
    #action-buttons {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        padding-top: 10px;
        border-top: 1px solid #333;
        width: 100%;
        justify-content: center;
    }
    
    .hud-label {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    #controls-panel {
        bottom: 10px;
        padding: 10px;
    }
    
    #tuning-control,
    #volume-control {
        gap: 5px;
    }
    
    #tuning-dial,
    #volume-slider {
        width: 60px;
    }
    
    #preset-buttons {
        gap: 5px;
    }
    
    .preset {
        width: 28px;
        height: 24px;
        font-size: 0.7rem;
    }
    
    #action-buttons button {
        width: 32px;
        height: 32px;
    }
}