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

body {
    font-family: 'Orbitron', monospace;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
}

.game-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    max-width: 98vw;
    width: 100vw;
    max-height: 98vh;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

.game-header {
    text-align: center;
    margin-bottom: 20px;
}

.game-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-board {
    display: flex;
    justify-content: space-around;
    background: rgba(0, 0, 0, 0.3);
    padding: 10px;
    border-radius: 10px;
    font-weight: 700;
}

.score, .high-score {
    font-size: 1.1rem;
}

.game-area {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    width: 100%;
    max-width: 700px;
    height: auto;
}

#gameCanvas {
    width: 100%;
    height: auto;
    max-width: 700px;
    max-height: 70vw;
    aspect-ratio: 1 / 1;
    border: 3px solid #fff;
    border-radius: 10px;
    background: #000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    display: block;
}

.game-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
}

.overlay-content {
    text-align: center;
    padding: 20px;
}

.overlay-content h2 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: #4ecdc4;
}

.overlay-content p {
    font-size: 1rem;
    margin-bottom: 20px;
    line-height: 1.5;
}

.game-button {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    border: none;
    color: white;
    padding: 12px 30px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.game-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.game-button:active {
    transform: translateY(0);
}

.game-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.control-info {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: 10px;
}

.control-info h3 {
    margin-bottom: 10px;
    color: #4ecdc4;
}

.control-info ul {
    list-style: none;
    padding-left: 0;
}

.control-info li {
    margin-bottom: 5px;
    padding-left: 20px;
    position: relative;
}

.control-info li:before {
    content: "▶";
    position: absolute;
    left: 0;
    color: #ff6b6b;
}

.mobile-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.horizontal-controls {
    display: flex;
    gap: 20px;
}

.control-btn {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 1.5rem;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.control-btn:active {
    transform: scale(0.95);
}

/* Responsive Design */
@media (max-width: 900px) {
    .game-container {
        max-width: 100vw;
        padding: 10px;
    }
    .game-area {
        max-width: 98vw;
    }
    #gameCanvas {
        max-width: 98vw;
        max-height: 60vw;
    }
}

@media (max-width: 600px) {
    .game-container {
        max-width: 100vw;
        padding: 5px;
    }
    .game-area {
        max-width: 100vw;
    }
    #gameCanvas {
        max-width: 100vw;
        max-height: 80vw;
    }
    
    .game-title {
        font-size: 2rem;
    }
    
    .score-board {
        flex-direction: column;
        gap: 5px;
    }
    
    .game-controls {
        gap: 15px;
    }
    
    .control-info {
        font-size: 0.9rem;
    }
}

/* Animation for game elements */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.game-title {
    animation: pulse 2s infinite;
}

/* Hide mobile controls on desktop */
@media (min-width: 768px) {
    .mobile-controls {
        display: none;
    }
} 

.settings-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.settings-content {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    max-width: 400px;
    width: 90%;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.settings-content h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #4ecdc4;
    font-size: 1.8rem;
}

.setting-group {
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.setting-group label {
    font-weight: 600;
    color: #fff;
}

.setting-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: #4ecdc4;
}

.setting-group input[type="range"] {
    width: 150px;
    accent-color: #4ecdc4;
}

.setting-group select {
    padding: 5px 10px;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.3);
    color: #fff;
    font-family: 'Orbitron', monospace;
}

.setting-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}

.settings-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 5px;
    transition: all 0.3s ease;
    position: absolute;
    top: 10px;
    right: 10px;
}

.settings-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.1);
}

/* Power-up animations */
@keyframes powerUpPulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

.power-up {
    animation: powerUpPulse 1s infinite;
}

/* Level indicator */
.level {
    font-size: 1.1rem;
    color: #4ecdc4;
}

/* Game state indicators */
.game-state {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(0, 0, 0, 0.7);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.9rem;
    color: #fff;
}

.invincible-indicator {
    color: #ffff00;
    animation: blink 0.5s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.5; }
}

/* Responsive improvements */
@media (max-width: 600px) {
    .settings-content {
        padding: 20px;
        margin: 10px;
    }
    
    .setting-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .setting-group input[type="range"] {
        width: 100%;
    }
    
    .setting-group select {
        width: 100%;
    }
}

/* Theme variations */
.theme-dark {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.theme-neon {
    background: linear-gradient(135deg, #0f0f23 0%, #1a0033 100%);
}

.theme-neon .game-title {
    text-shadow: 0 0 10px #4ecdc4, 0 0 20px #4ecdc4, 0 0 30px #4ecdc4;
}

.theme-neon .game-button {
    box-shadow: 0 0 10px #4ecdc4;
}