/* Authentication and Access Control Styles */

/* Auth Modal */
.auth-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    backdrop-filter: blur(4px);
}

.auth-modal.active {
    display: flex;
}

.auth-modal-content {
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 90%;
    box-shadow: 0 8px 32px var(--color-shadow);
    border: 1px solid var(--color-border-light);
    position: relative;
    animation: authModalSlideIn 0.3s ease-out;
}

@keyframes authModalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.auth-modal-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-sm) 0;
}

.auth-modal-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin: 0;
}

.auth-tabs {
    display: flex;
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-sm) 0;
    text-align: center;
    border: none;
    background: none;
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast);
}

.auth-tab.active {
    color: var(--color-primary);
}

.auth-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-primary);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input.error {
    border-color: var(--color-error);
}

.form-error {
    color: var(--color-error);
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-xs);
    display: none;
}

.form-error.active {
    display: block;
}

.auth-actions {
    margin-top: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.auth-submit {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.auth-submit:hover {
    background: var(--color-primary-dark);
}

.auth-submit:disabled {
    background: var(--color-gray-400);
    cursor: not-allowed;
}

.auth-link {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.auth-link a {
    color: var(--color-primary);
    text-decoration: none;
}

.auth-link a:hover {
    text-decoration: underline;
}

/* Remember Me Checkbox */
.remember-me {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0;
}

.remember-me label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

/* Access Denied Page */
.access-denied {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    padding: var(--spacing-xl);
    text-align: center;
    background: var(--color-bg-primary);
}

.access-denied-icon {
    font-size: 4rem;
    color: var(--color-error);
    margin-bottom: var(--spacing-lg);
}

.access-denied-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-md) 0;
}

.access-denied-message {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin: 0 0 var(--spacing-xl) 0;
    max-width: 500px;
}

.access-denied-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

/* License Status */
.license-status {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.license-status-header {
    display: flex;
    align-items: center;
    justify-content: between;
    margin-bottom: var(--spacing-sm);
}

.license-status-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin: 0;
}

.license-status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
}

.license-status-badge.active {
    background: var(--color-success-light);
    color: var(--color-success-dark);
}

.license-status-badge.expired {
    background: var(--color-error-light);
    color: var(--color-error-dark);
}

.license-status-badge.pending {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
}

.license-status-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.license-detail {
    display: flex;
    justify-content: space-between;
}

.license-detail-label {
    font-weight: var(--font-weight-medium);
}

/* User Profile Dropdown */
.user-profile {
    position: relative;
}

.user-profile-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.user-profile-button:hover {
    border-color: var(--color-border-medium);
}

.user-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px var(--color-shadow);
    min-width: 200px;
    z-index: var(--z-dropdown);
    display: none;
    margin-top: var(--spacing-xs);
}

.user-dropdown.active {
    display: block;
    animation: dropdownSlideIn 0.2s ease-out;
}

@keyframes dropdownSlideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-dropdown-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-light);
}

.user-dropdown-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.user-dropdown-email {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

.user-dropdown-menu {
    list-style: none;
    padding: var(--spacing-xs) 0;
    margin: 0;
}

.user-dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-fast);
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.user-dropdown-item:hover {
    background: var(--color-bg-tertiary);
}

.user-dropdown-separator {
    height: 1px;
    background: var(--color-border-light);
    margin: var(--spacing-xs) 0;
}

/* Role-based Styling */
.user-role-admin .user-avatar {
    background: var(--color-error);
}

.user-role-librarian .user-avatar {
    background: var(--color-warning);
}

.user-role-reader .user-avatar {
    background: var(--color-primary);
}

/* Two-Factor Authentication */
.two-factor-form {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
}

.two-factor-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-md) 0;
    text-align: center;
}

.two-factor-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0 0 var(--spacing-lg) 0;
    text-align: center;
}

.verification-code-input {
    font-family: var(--font-mono);
    font-size: var(--font-size-lg);
    text-align: center;
    letter-spacing: 0.5em;
    padding: var(--spacing-md);
}

/* Session Timeout Warning */
.session-warning {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-warning);
    color: var(--color-warning-dark);
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: center;
    z-index: var(--z-overlay);
    display: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.session-warning.active {
    display: block;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.session-warning-actions {
    margin-left: var(--spacing-md);
}

.session-warning-btn {
    background: none;
    border: 1px solid currentColor;
    color: inherit;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    cursor: pointer;
    margin-left: var(--spacing-xs);
}

.session-warning-btn:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* Offline Indicator */
.offline-indicator {
    position: fixed;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--color-error);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    z-index: var(--z-overlay);
    display: none;
    box-shadow: 0 4px 12px var(--color-shadow);
}

.offline-indicator.active {
    display: block;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Loading Overlay for Auth Actions */
.auth-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
}

.auth-loading.active {
    display: flex;
}

/* Responsive Auth Modal */
@media (max-width: 768px) {
    .auth-modal-content {
        max-width: none;
        width: 95%;
        margin: var(--spacing-md);
        padding: var(--spacing-lg);
    }
    
    .auth-tabs {
        margin-bottom: var(--spacing-md);
    }
    
    .auth-tab {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .auth-modal-content {
        padding: var(--spacing-md);
    }
    
    .auth-modal-title {
        font-size: var(--font-size-lg);
    }
    
    .form-input {
        padding: var(--spacing-sm);
    }
    
    .access-denied-actions {
        flex-direction: column;
        align-items: center;
    }
}