/* ===== Đăng nhập OTP (nút ở sidebar + modal) ===== */

/* --- Khối trong sidebar, nằm trên danh sách lịch sử --- */
.auth-box {
    margin-bottom: var(--spacing-md);
}

.auth-login-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 10px var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-ink-light);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: background-color 0.18s, color 0.18s, border-color 0.18s;
}

.auth-login-btn:hover {
    background: var(--color-surface-hover);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.auth-login-btn svg {
    flex-shrink: 0;
}

.auth-hint {
    margin-top: 6px;
    text-align: center;
    font-size: 11px;
    color: var(--color-ink-lighter);
}

/* Đã đăng nhập: hiện email + nút đăng xuất */
.auth-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 10px var(--spacing-sm) 10px var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
}

.auth-user svg {
    flex-shrink: 0;
    color: var(--color-primary);
}

.auth-user-email {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--font-size-caption);
    font-weight: 600;
    color: var(--color-ink);
}

.auth-logout-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    padding: 6px;
    border-radius: var(--radius-sm);
    color: var(--color-ink-lighter);
    transition: background-color 0.18s, color 0.18s;
}

.auth-logout-btn:hover {
    background: var(--color-surface-hover);
    color: #d33a3a;
}

/* --- Modal --- */
.auth-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: rgba(10, 17, 40, 0.55);
}

.auth-modal {
    position: relative;
    width: 100%;
    max-width: 420px;
    padding: var(--spacing-xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.auth-modal h3 {
    font-family: var(--font-display);
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}

.auth-modal p {
    font-size: var(--font-size-caption);
    color: var(--color-ink-lighter);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.auth-modal p b {
    color: var(--color-ink);
}

.auth-close {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    color: var(--color-ink-lighter);
    font-size: 20px;
    transition: background-color 0.18s, color 0.18s;
}

.auth-close:hover {
    background: var(--color-surface-hover);
    color: var(--color-ink);
}

.auth-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-ink);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    outline: none;
    transition: border-color 0.18s;
}

.auth-input:focus {
    border-color: var(--color-primary);
}

.auth-otp-input {
    text-align: center;
    letter-spacing: 14px;
    font-family: var(--font-mono);
    font-size: 26px;
    font-weight: 600;
}

.auth-primary-btn {
    width: 100%;
    margin-top: var(--spacing-md);
    padding: 12px var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--color-gradient);
    color: white;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--font-size-base);
    letter-spacing: 0.3px;
    box-shadow: 0 4px 14px rgba(0, 85, 170, 0.35);
    transition: filter 0.2s, box-shadow 0.2s, opacity 0.2s;
}

.auth-primary-btn:hover:not(:disabled) {
    filter: brightness(1.05);
    box-shadow: 0 6px 20px rgba(0, 85, 170, 0.45);
}

.auth-primary-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.auth-secondary-btn {
    display: block;
    margin: var(--spacing-sm) auto 0;
    padding: 6px 10px;
    color: var(--color-primary);
    font-size: var(--font-size-caption);
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background-color 0.18s, opacity 0.18s;
}

.auth-secondary-btn:hover:not(:disabled) {
    background: var(--color-surface-hover);
}

.auth-secondary-btn:disabled {
    color: var(--color-ink-lighter);
    cursor: not-allowed;
}

.auth-countdown {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-primary);
}

.auth-error {
    min-height: 18px;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-caption);
    color: #d33a3a;
    line-height: 1.5;
}

body.dark-mode .auth-error {
    color: #ff7b7b;
}