* {
    box-sizing: border-box
}

body {
    margin: 0;
    font-family: Inter, Segoe UI, Arial, sans-serif;
    background: #05060a;
    color: #e6eef8;
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center
}

main.shooter {
    width: 520px;
    padding: 16px
}

header.shooter__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px
}

h1 {
    font-size: 18px;
    margin: 0
}

canvas {
    display: block;
    width: 100%;
    height: auto;
    background: linear-gradient(#02030a, #081021);
    border-radius: 8px;
    box-shadow: 0 12px 36px rgba(2, 4, 10, 0.7)
}

footer.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    color: #9fb5d6
}

button#restart {
    background: linear-gradient(135deg, #58a6ff, #a855f7);
    border: none;
    padding: 8px 12px;
    border-radius: 8px;
    color: #041226;
    cursor: pointer
}

div.hud {
    background: rgba(255, 255, 255, 0.03);
    padding: 6px 10px;
    border-radius: 8px;
    font-weight: 700;
    color: #dff3ff
}