/* 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(--background-white);
    border-radius: 12px;
    padding: 40px;
    max-width: 420px;
    width: 90%;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    font-family: var(--font-family);
}

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

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

.session-countdown-message strong {
    color: var(--danger-button-color);
    font-weight: 700;
    font-size: 18px;
}

.session-countdown-btn {
    background: var(--primary-color);
    color: var(--primary-button-text-color);
    border: none;
    border-radius: 6px;
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.session-countdown-btn:hover {
    background: var(--primary-hover-color);
}