/* Session Expiry Countdown Modal */
.session-countdown-overlay {
    position: fixed;
    inset: 0;
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    background: rgba(0, 0, 0, 0.4);
}

.session-countdown-modal {
    background: var(--smx-surface);
    border-radius: var(--smx-radius-card);
    padding: 40px;
    max-width: 420px;
    width: 90%;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    font-family: var(--smx-font-body);
}

.session-countdown-title {
    color: var(--smx-on-surface);
    font-size: 22px;
    font-weight: 600;
    margin: 0 0 12px 0;
}

.session-countdown-message {
    color: var(--smx-on-surface);
    font-size: 15px;
    line-height: 1.5;
    margin: 0 0 24px 0;
}

.session-countdown-message strong {
    color: color-mix(in srgb, var(--smx-danger) 60%, var(--smx-on-surface));
    font-weight: 700;
    font-size: 18px;
}

.session-countdown-btn {
    background: var(--smx-btn-bg);
    color: var(--smx-btn-text);
    border: var(--smx-btn-border);
    box-shadow: var(--smx-btn-shadow);
    text-transform: var(--smx-btn-case);
    font-family: var(--smx-font-heading);
    letter-spacing: var(--smx-heading-tracking);
    border-radius: var(--smx-radius-btn);
    padding: 12px 32px;
    font-size: 16px;
    font-weight: var(--smx-heading-weight);
    cursor: pointer;
    transition: background 0.2s;
}

.session-countdown-btn:hover {
    background: var(--smx-btn-hover-bg);
    color: var(--smx-btn-hover-text);
    transform: var(--smx-btn-hover-transform);
    box-shadow: var(--smx-btn-hover-shadow);
}

@media (prefers-reduced-motion: reduce) {
    .session-countdown-btn, .session-countdown-btn:hover {
        transition: none;
        transform: none;
    }
}