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

body {
    font-family: 'Courier New', Courier, monospace;
    background: linear-gradient(to bottom, #0a0e1a 0%, #1a1f35 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    color: #fff;
}

.game-wrapper {
    position: relative;
    width: 100%;
    max-width: 1000px;
    height: 100vh;
    max-height: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* ==================== HUD ==================== */
.hud {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    z-index: 10;
}

.hud-left,
.hud-right {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.stat {
    background: rgba(10, 14, 26, 0.9);
    border: 2px solid #f7931a;
    border-radius: 8px;
    padding: 8px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 0 15px rgba(247, 147, 26, 0.3);
    pointer-events: none;
}

.stat .label {
    font-size: 11px;
    color: #f7931a;
    font-weight: bold;
    margin-bottom: 2px;
}

.stat .value {
    font-size: 18px;
    color: #fff;
    font-weight: bold;
}

/* Mute Button */
.mute-btn {
    background: rgba(10, 14, 26, 0.9);
    border: 2px solid #f7931a;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 15px rgba(247, 147, 26, 0.3);
    pointer-events: all;
}

.mute-btn:hover {
    background: rgba(247, 147, 26, 0.2);
    transform: scale(1.05);
}

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

.mute-btn.muted {
    border-color: #666;
    box-shadow: 0 0 10px rgba(102, 102, 102, 0.3);
}

/* ==================== CANVAS ==================== */
#gameCanvas {
    background: #0f1624;
    border: 3px solid #f7931a;
    border-radius: 8px;
    box-shadow: 0 0 30px rgba(247, 147, 26, 0.4);
    display: block;
    max-width: 100%;
    max-height: calc(100vh - 100px);
}

/* ==================== OVERLAYS ==================== */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    backdrop-filter: blur(4px);
}

.overlay.hidden {
    display: none;
}

.overlay-content {
    text-align: center;
    padding: 40px;
    background: rgba(15, 22, 36, 0.95);
    border: 3px solid #f7931a;
    border-radius: 15px;
    box-shadow: 0 0 40px rgba(247, 147, 26, 0.5);
    max-width: 90%;
}

/* ==================== TITLES ==================== */
.title {
    font-size: 48px;
    color: #f7931a;
    text-shadow: 0 0 20px rgba(247, 147, 26, 0.8);
    margin-bottom: 15px;
    letter-spacing: 3px;
    font-weight: bold;
}

.paused-title {
    color: #00ff88;
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.8);
    font-size: 56px;
}

.game-over-title {
    color: #ff4444;
    text-shadow: 0 0 20px rgba(255, 68, 68, 0.8);
}

.subtitle {
    font-size: 20px;
    color: #aaa;
    margin-bottom: 30px;
}

/* ==================== INSTRUCTIONS ==================== */
.start-instructions {
    margin-top: 20px;
}

.key-instruction {
    font-size: 24px;
    margin: 20px 0;
    color: #fff;
}

.pause-instruction,
.restart-instruction {
    font-size: 20px;
    margin: 20px 0;
    color: #fff;
}

.key {
    display: inline-block;
    background: linear-gradient(135deg, #f7931a 0%, #ff8c00 100%);
    color: #000;
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 22px;
    box-shadow: 0 4px 15px rgba(247, 147, 26, 0.4);
    margin: 0 5px;
}

.key-small {
    display: inline-block;
    background: linear-gradient(135deg, #f7931a 0%, #ff8c00 100%);
    color: #000;
    padding: 4px 12px;
    border-radius: 6px;
    font-weight: bold;
    font-size: 14px;
    box-shadow: 0 2px 10px rgba(247, 147, 26, 0.3);
    margin: 0 3px;
}

.game-info {
    margin-top: 25px;
    line-height: 2;
}

.game-info p {
    font-size: 16px;
    color: #ccc;
}

/* ==================== FINAL STATS ==================== */
.final-stats {
    margin: 25px 0;
}

.final-stats p {
    font-size: 22px;
    margin: 12px 0;
    color: #fff;
}

.highlight {
    color: #f7931a;
    font-size: 28px;
    font-weight: bold;
}

/* ==================== CONTROLS HINT ==================== */
.controls-hint {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(10, 14, 26, 0.8);
    border: 2px solid #f7931a;
    border-radius: 8px;
    padding: 10px 20px;
    font-size: 13px;
    color: #f7931a;
    z-index: 5;
    white-space: nowrap;
}

.control-item {
    margin: 0 8px;
}

.control-separator {
    color: #f7931a;
    margin: 0 5px;
    opacity: 0.5;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .title {
        font-size: 36px;
    }
    
    .paused-title {
        font-size: 44px;
    }
    
    .subtitle {
        font-size: 16px;
    }
    
    .key-instruction,
    .pause-instruction,
    .restart-instruction {
        font-size: 18px;
    }
    
    .key {
        font-size: 18px;
        padding: 6px 16px;
    }
    
    .game-info p {
        font-size: 14px;
    }
    
    .stat {
        padding: 6px 12px;
    }
    
    .stat .label {
        font-size: 10px;
    }
    
    .stat .value {
        font-size: 16px;
    }
    
    .mute-btn {
        padding: 6px 10px;
        font-size: 18px;
    }
    
    .hud {
        top: 10px;
        left: 10px;
        right: 10px;
    }
    
    .hud-left,
    .hud-right {
        gap: 8px;
    }
    
    .controls-hint {
        font-size: 11px;
        padding: 8px 15px;
    }
    
    .control-item {
        margin: 0 4px;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 28px;
    }
    
    .paused-title {
        font-size: 36px;
    }
    
    .overlay-content {
        padding: 25px;
    }
    
    .final-stats p {
        font-size: 18px;
    }
    
    .highlight {
        font-size: 24px;
    }
    
    .controls-hint {
        font-size: 9px;
        padding: 6px 10px;
        bottom: 10px;
    }
    
    .control-separator {
        display: none;
    }
}

@media (max-height: 500px) {
    .overlay-content {
        padding: 20px;
    }
    
    .title {
        font-size: 32px;
        margin-bottom: 10px;
    }
    
    .game-info {
        margin-top: 15px;
    }
    
    .final-stats {
        margin: 15px 0;
    }
}