.countdown-fullscreen {
    min-height: 100vh;
    margin: 0;
    background: radial-gradient(circle at top, #1f1f1f, #050505);
    display: flex;
    align-items: center;
    justify-content: center;
}

.countdown-fullscreen__container {
    width: min(480px, 90vw);
    padding: 2rem;
}

.countdown-fullscreen .cdt {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.6);
    color: #f5f5f5;
}

.cdt {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    padding: 1.5rem;
    border: 2px solid #222;
    border-radius: 1rem;
    max-width: 420px;
    margin: 1rem auto;
    text-align: center;
    background: #fff;
}

.cdt__segments {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.cdt__segment {
    flex: 1;
    background: #111;
    color: #fff;
    border-radius: 0.75rem;
    padding: 0.75rem 0.5rem;
}

.countdown-fullscreen .cdt__segment {
    background: rgba(255, 255, 255, 0.1);
}

.cdt__value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
}

.cdt__label {
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: #bbb;
}

.cdt--error {
    color: #721c24;
    background: #f8d7da;
    border-color: #f5c6cb;
}