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

body {
    background: #090d16;
    color: #fff;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    overflow: hidden;
    touch-action: none;
    text-align: center;
}

#game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

canvas {
    background: #38bdf8;
    border: 4px solid #0284c7;
    border-radius: 16px;
    box-shadow: 0 0 30px rgba(2, 132, 199, 0.5);
    max-width: 98vw;
    max-height: 80vh;
    cursor: crosshair;
}

#hud {
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    display: flex;
    justify-content: space-between;
    z-index: 10;
    pointer-events: none;
}

.hud-card {
    background: rgba(15, 23, 42, 0.9);
    border: 2px solid #38bdf8;
    padding: 8px 18px;
    border-radius: 12px;
    font-weight: bold;
    color: #38bdf8;
    box-shadow: 0 0 12px rgba(0,0,0,0.6);
    font-size: 1.05rem;
}

.hud-ammo {
    border-color: #ef4444;
    color: #ef4444;
}

#gun-controls {
    position: absolute;
    bottom: 25px;
    z-index: 25;
}

#fire-btn {
    background: linear-gradient(135deg, #ef4444, #b91c1c);
    color: #fff;
    border: 3px solid #fcfbf4;
    padding: 14px 45px;
    font-size: 1.3rem;
    font-weight: bold;
    border-radius: 30px;
    cursor: pointer;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.7);
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

#fire-btn:active {
    transform: scale(0.95);
}

.modal {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 30;
    padding: 20px;
}

.modal h1 {
    font-size: 2.3rem;
    color: #facc15;
    text-shadow: 0 0 15px #facc15;
    margin-bottom: 10px;
}

.modal p {
    font-size: 1.1rem;
    color: #cbd5e1;
    margin-bottom: 20px;
    max-width: 420px;
}

.play-btn {
    background: #22c55e;
    color: #fff;
    border: none;
    padding: 12px 35px;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 25px;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(34, 197, 94, 0.5);
}

.ad-btn {
    background: #eab308;
    color: #000;
    border: none;
    padding: 12px 25px;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 25px;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(234, 179, 8, 0.5);
}