* { box-sizing: border-box }
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    background: #0b0f14;
    color: #ffffff;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

#rain {
    display: block;
    width: 100vw;
    height: 100vh;
}

.hud {
    position: fixed;
    left: 16px;
    bottom: 16px;
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 10px 12px;
    border-radius: 12px;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    user-select: none;
    pointer-events: none;
}

#intensityLabel {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(255,255,255,0.14);
}

.hint { opacity: .8; font-size: .9rem }