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

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #05060c;
    color: #e8f7ff;
    font-family: Rajdhani, Orbitron, "Segoe UI", system-ui, sans-serif;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

canvas#game {
    display: block;
    width: 100%;
    height: 100%;
    cursor: default;
    outline: none;
    touch-action: none;
}

canvas#game.is-playing {
    cursor: none;
}

.hub-link {
    position: fixed;
    left: 16px;
    bottom: 16px;
    z-index: 5;
    color: rgba(232, 247, 255, 0.45);
    font-family: Rajdhani, "Segoe UI", sans-serif;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    padding: 8px 10px;
    border-radius: 6px;
    transition: color 0.2s ease, background 0.2s ease;
}

.hub-link:hover,
.hub-link:focus-visible {
    color: #7dfff4;
    background: rgba(125, 255, 244, 0.08);
    outline: none;
}