:root {
    color-scheme: dark;
    font-family: 'Inter', system-ui, sans-serif;
    color: #f5f7ff;
    background: #0b1220;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at top left, rgba(106, 89, 255, 0.35), transparent 28%),
                radial-gradient(circle at bottom right, rgba(0, 234, 255, 0.22), transparent 25%),
                linear-gradient(135deg, #0d1326 0%, #0b1220 45%, #111827 100%);
}

.page-shell {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    min-height: 100vh;
}

.container {
    width: min(100%, 900px);
    padding: 32px;
    border-radius: 32px;
    background: rgba(15, 24, 40, 0.88);
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(16px);
}

.hero {
    text-align: center;
    margin-bottom: 32px;
}

.eyebrow {
    margin: 0 0 12px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    font-size: 0.78rem;
    color: #7c91ff;
}

h1 {
    margin: 0;
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.05;
}

.subtitle {
    margin: 16px auto 0;
    max-width: 30rem;
    color: #c7d2ff;
    font-size: 1rem;
    line-height: 1.7;
}

.countdown-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.time-block {
    padding: 24px 20px;
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
    text-align: center;
}

.time-block span {
    display: block;
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    margin-bottom: 12px;
}

.time-block p {
    margin: 0;
    color: #9ca3af;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

@media (max-width: 720px) {
    .container {
        padding: 24px;
    }

    .countdown-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 20px;
        border-radius: 24px;
    }

    .hero {
        margin-bottom: 24px;
    }

    .countdown-grid {
        grid-template-columns: 1fr;
    }
}