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

body {
    font-family: 'Arial', sans-serif;
    overflow: hidden;
    background: #000;
    color: white;
}

#scene-container {
    position: relative;
    width: 100vw;
    height: 100vh;
}

.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid #333;
    border-top: 3px solid #003087;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

.loading-text {
    color: #003087;
    font-size: 18px;
    font-weight: bold;
}

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

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

.ui-overlay > * {
    pointer-events: auto;
}

.top-controls {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.ps-logo {
    font-size: 24px;
    font-weight: bold;
    color: #003087;
    text-shadow: 0 0 10px rgba(0, 48, 135, 0.5);
}

.move-text {
    font-size: 14px;
    color: #666;
    margin-top: -2px;
}

.mode-selector {
    display: flex;
    gap: 10px;
}

.mode-btn {
    padding: 8px 16px;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid #333;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 12px;
}

.mode-btn:hover {
    background: rgba(0, 48, 135, 0.3);
    border-color: #003087;
}

.mode-btn.active {
    background: #003087;
    border-color: #0066cc;
    box-shadow: 0 0 10px rgba(0, 48, 135, 0.5);
}

.side-panel {
    position: absolute;
    top: 80px;
    right: 20px;
    width: 250px;
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid #333;
    border-radius: 10px;
    padding: 15px;
    backdrop-filter: blur(10px);
}

.control-group {
    margin-bottom: 20px;
}

.control-group h3 {
    color: #003087;
    font-size: 14px;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.color-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#color-picker {
    width: 100%;
    height: 40px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.preset-colors {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 5px;
}

.color-btn {
    width: 30px;
    height: 30px;
    border: 2px solid #333;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.color-btn:hover {
    border-color: white;
    transform: scale(1.1);
}

.mode-toggles {
    display: flex;
    gap: 5px;
}

.toggle-btn, .action-btn {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid #333;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 11px;
    white-space: nowrap;
}

.toggle-btn:hover, .action-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #666;
}

.toggle-btn.active {
    background: #003087;
    border-color: #0066cc;
    box-shadow: 0 0 5px rgba(0, 48, 135, 0.5);
}

.physics-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5px;
}

.env-controls {
    display: flex;
    gap: 5px;
}

.bottom-controls {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.instructions {
    color: #666;
    font-size: 12px;
}

.stats {
    color: #666;
    font-size: 11px;
    font-family: 'Courier New', monospace;
}

.game-ui {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 30px;
    background: rgba(0, 0, 0, 0.8);
    padding: 15px 25px;
    border-radius: 10px;
    border: 1px solid #333;
    backdrop-filter: blur(10px);
}

.game-ui.hidden {
    display: none;
}

.game-ui > div {
    color: white;
    font-weight: bold;
    font-size: 14px;
}

#score {
    color: #00ff00;
}

#targets-hit {
    color: #ffff00;
}

#game-timer {
    color: #ff6600;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .side-panel {
        width: 200px;
        top: 70px;
        right: 10px;
        padding: 10px;
    }
    
    .control-group h3 {
        font-size: 12px;
    }
    
    .mode-btn, .toggle-btn, .action-btn {
        padding: 6px 8px;
        font-size: 10px;
    }
    
    .preset-colors {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .color-btn {
        width: 25px;
        height: 25px;
    }
    
    .physics-controls {
        grid-template-columns: 1fr;
    }
    
    .top-controls {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .game-ui {
        flex-direction: column;
        gap: 10px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .side-panel {
        width: calc(100% - 20px);
        position: relative;
        top: auto;
        right: auto;
        margin: 10px;
    }
    
    .ui-overlay {
        position: relative;
    }
    
    .mode-selector {
        flex-wrap: wrap;
        gap: 5px;
    }
    
    .instructions {
        display: none;
    }
}

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.color-btn:active {
    animation: pulse 0.3s ease;
}

.toggle-btn.active {
    animation: pulse 2s ease-in-out infinite;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}