body {
    margin: 0;
    padding: 20px;
    background: linear-gradient(135deg, #2c1810 0%, #4a3728 50%, #1a1a2e 100%);
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.game-container {
    background: rgba(60, 45, 35, 0.95);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 0 20px rgba(255, 200, 100, 0.1);
    text-align: center;
    position: relative;
    border: 3px solid #8b7355;
}

.game-info {
    display: flex;
    justify-content: space-around;
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: bold;
    color: #ffd700;
}

.score, .round, .ammo, .time {
    background: linear-gradient(135deg, #1a1a1a, #333);
    padding: 8px 15px;
    border-radius: 20px;
    border: 2px solid #ffd700;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

#gameCanvas {
    border: 4px solid #5c4033;
    border-radius: 10px;
    background: linear-gradient(to bottom, 
        #1a1a2e 0%, 
        #2d2d44 20%, 
        #3d2817 60%, 
        #2c1810 100%);
    display: block;
    margin: 0 auto;
    cursor: crosshair;
    box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.5);
}

.timer-bar-container {
    width: 100%;
    max-width: 800px;
    height: 15px;
    background: #1a1a1a;
    border-radius: 8px;
    margin: 15px auto;
    overflow: hidden;
    border: 2px solid #5c4033;
}

.timer-bar {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, #e74c3c, #f39c12, #27ae60);
    border-radius: 6px;
    transition: width 0.1s linear;
}

.start-screen, .game-over, .round-screen {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(135deg, rgba(44, 24, 16, 0.98), rgba(30, 20, 15, 0.98));
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 20px rgba(255, 215, 0, 0.2);
    text-align: center;
    z-index: 100;
    border: 3px solid #ffd700;
    color: #fff;
}

.hidden {
    display: none !important;
}

.start-screen h2, .game-over h2, .round-screen h2 {
    color: #ffd700;
    margin-bottom: 20px;
    font-size: 32px;
    text-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.start-screen p, .game-over p, .round-screen p {
    color: #ddd;
    margin: 10px 0;
    font-size: 16px;
}

.instructions {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: 10px;
    margin: 20px 0;
    text-align: left;
}

.instructions p {
    margin: 8px 0;
    font-size: 14px;
}

.instruction {
    color: #f39c12 !important;
    font-weight: bold;
}

button {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    border: none;
    padding: 15px 35px;
    font-size: 18px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
    margin: 15px 10px;
    text-transform: uppercase;
    font-weight: bold;
    letter-spacing: 1px;
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.4);
}

button:hover {
    background: linear-gradient(135deg, #c0392b, #a93226);
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(231, 76, 60, 0.6);
}

.start-screen button {
    background: linear-gradient(135deg, #27ae60, #1e8449);
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.4);
}

.start-screen button:hover {
    background: linear-gradient(135deg, #1e8449, #196f3d);
    box-shadow: 0 8px 20px rgba(39, 174, 96, 0.6);
}

.round-screen button {
    background: linear-gradient(135deg, #3498db, #2980b9);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.round-screen button:hover {
    background: linear-gradient(135deg, #2980b9, #21618c);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.6);
}

.controls {
    margin-top: 15px;
    color: #bbb;
    font-size: 14px;
}

/* Ammo display animation */
.ammo {
    transition: all 0.2s;
}

.ammo.low {
    color: #e74c3c;
    animation: pulse 0.5s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Hit effect */
@keyframes hitFlash {
    0% { box-shadow: inset 0 0 50px rgba(255, 255, 0, 0.5); }
    100% { box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.5); }
}

.hit-flash {
    animation: hitFlash 0.1s;
}

/* Responsive */
@media (max-width: 850px) {
    #gameCanvas {
        width: 100%;
        height: auto;
    }
    
    .game-info {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .score, .round, .ammo, .time {
        font-size: 14px;
        padding: 6px 12px;
    }
}