html, body {
    margin: 0;
    min-height: 100%;
}

body {
    min-height: 100vh;
    color: #fff;
    font-family: Arial, Helvetica, sans-serif;
    background:
        radial-gradient(circle at 20% 10%, rgba(0, 210, 255, 0.18), transparent 42%),
        linear-gradient(160deg, #0b1420 0%, #1a2433 45%, #0a0f14 100%);
}

.overlay {
    min-height: 100vh;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    flex-direction: column;
}

.brand {
    text-align: center;
    padding: 36px 16px 8px;
}

.brand h1 {
    margin: 0;
    font-size: 64px;
    letter-spacing: -2px;
    font-weight: 700;
}

.stage {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 16px 80px;
    text-align: center;
}

.stage h2 {
    margin: 0 0 48px;
    font-size: 40px;
    font-weight: 300;
    color: #00d2ff;
}

.countdown {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-bottom: 56px;
}

.countdown div {
    width: 110px;
    height: 110px;
    border-radius: 80px;
    border: 1px solid rgba(255, 255, 255, 0.76);
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.countdown strong {
    font-size: 42px;
    font-weight: 500;
    line-height: 1;
}

.countdown span {
    display: block;
    margin-top: 6px;
    padding-top: 4px;
    border-top: 1px solid #cecece;
    font-size: 14px;
}

.touch h3 {
    margin: 0 0 18px;
    font-size: 24px;
    font-weight: 400;
}

.touch form {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0;
}

.touch input[type="text"] {
    width: min(320px, 70vw);
    border: 1px solid rgba(255, 255, 255, 0.76);
    background: rgba(255, 255, 255, 0.52);
    color: #111;
    font: bold 18px Arial, Helvetica, sans-serif;
    padding: 10px 12px;
}

.touch button {
    border: 1px solid rgba(255, 255, 255, 0.76);
    background: #fff;
    color: #111;
    font: bold 18px Arial, Helvetica, sans-serif;
    padding: 10px 22px;
    cursor: pointer;
}

.note {
    min-height: 1.4em;
    margin: 16px 0 0;
    color: #e8e8e8;
    font-size: 16px;
}

.site-foot {
    text-align: center;
    padding: 12px;
    background: rgba(0, 0, 0, 0.64);
    font-size: 13px;
    color: #ddd;
}

@media (max-width: 720px) {
    .brand h1 { font-size: 42px; }
    .stage h2 { font-size: 26px; margin-bottom: 28px; }
    .countdown div { width: 80px; height: 80px; }
    .countdown strong { font-size: 28px; }
}