/* ==========================================================================
   Authentication Pages Styles
   Uses CSS Custom Properties from theme.css for consistent theming
   ========================================================================== */

/* Auth Page Container - fixed viewport with internal scroll */
.auth-page {
    height: 100vh;
    background: var(--search-hero-gradient);
    padding: var(--spacing-xl) var(--spacing-lg);
    box-sizing: border-box;
    overflow-y: auto; /* Enable scrolling within the page */
    display: flex;
    flex-direction: column;
}

/* Auth Container - wraps the card */
.auth-container {
    width: 100%;
    max-width: 480px;
    margin: auto; /* Centers both horizontally and vertically when space allows */
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

/* Auth Card */
.auth-card {
    width: 100%;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl) 2.5rem;
    animation: fadeIn 0.3s ease-out;
}

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

/* Auth Header */
.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-header .auth-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--header-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.auth-header .auth-icon i {
    font-size: 1.75rem;
    color: var(--header-text);
}

.auth-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 var(--spacing-xs);
}

.auth-header p {
    color: var(--color-text-secondary);
    margin: 0;
    font-size: 0.9rem;
}

/* Form Styles */
.auth-form .form-group {
    margin-bottom: var(--spacing-md);
}

.auth-form .form-label {
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    display: block;
}

.auth-form .form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.auth-form .form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.15);
}

.auth-form .form-control.is-invalid {
    border-color: var(--color-danger);
}

/* Input with Icon */
.input-icon-wrapper {
    position: relative;
}

.input-icon-wrapper .form-control {
    padding-left: 2.75rem;
}

.input-icon-wrapper .input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
}

/* Phone Input with Country Code */
.auth-form .input-group {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
}

.auth-form .input-group .input-group-text {
    background-color: var(--color-surface-secondary, #f8f9fa);
    border: 1px solid var(--color-border);
    border-right: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    padding: 0.875rem 0.75rem;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.auth-form .input-group .form-control {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    border-left: none;
}

.auth-form .input-group .form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.15);
}

/* Password Toggle */
.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0.25rem;
}

.password-toggle:hover {
    color: var(--color-text);
}

/* Validation Message */
.validation-message,
.field-validation-error {
    color: var(--color-danger);
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
    display: block;
}

/* Auth Button */
.btn-auth-primary {
    width: 100%;
    padding: 0.875rem;
    background: var(--color-primary);
    color: var(--color-primary-text);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

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

.btn-auth-primary:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-auth-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Loading Spinner in Button */
.btn-auth-primary .spinner-border {
    width: 1rem;
    height: 1rem;
    margin-right: var(--spacing-sm);
}

/* Auth Links */
.auth-links {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.auth-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.auth-links a:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-lg) 0;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.auth-divider span {
    padding: 0 var(--spacing-md);
}

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

.form-check-auth input[type="checkbox"] {
    width: 1.125rem;
    height: 1.125rem;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.form-check-auth label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    cursor: pointer;
}

/* Alert Messages */
.auth-alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.auth-alert-error {
    background: rgba(var(--bs-danger-rgb), 0.1);
    border: 1px solid var(--color-danger);
    color: var(--color-danger);
}

.auth-alert-success {
    background: rgba(var(--bs-success-rgb), 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.auth-alert-info {
    background: rgba(var(--bs-info-rgb), 0.1);
    border: 1px solid var(--color-info);
    color: var(--color-info);
}

.auth-alert i {
    flex-shrink: 0;
    margin-top: 2px;
}

/* Back to Home Link */
.auth-back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--header-text);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
    transition: opacity var(--transition-fast);
}

.auth-back-link:hover {
    opacity: 1;
    color: var(--header-text);
}

/* Password Requirements List */
.password-requirements {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    padding-left: var(--spacing-lg);
}

.password-requirements li {
    margin-bottom: var(--spacing-xs);
}

.password-requirements li.valid {
    color: var(--color-success);
}

/* Social Login Divider */
.social-divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-lg) 0;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.social-divider::before,
.social-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.social-divider span {
    padding: 0 var(--spacing-md);
    text-transform: lowercase;
}

/* Social Login Buttons Container */
.social-login-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Social Login Button Base */
.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-social:hover {
    background: var(--color-bg);
    border-color: var(--color-text-muted);
    color: var(--color-text);
    text-decoration: none;
}

.btn-social i {
    font-size: 1.35rem;
    min-width: 24px;
    text-align: center;
}

/* Google Button */
.btn-social-google {
    border-color: #db4437;
}

.btn-social-google:hover {
    background: rgba(219, 68, 55, 0.1);
    border-color: #db4437;
}

.btn-social-google i {
    color: #db4437;
}

/* Microsoft Button */
.btn-social-microsoft {
    border-color: #00a4ef;
}

.btn-social-microsoft:hover {
    background: rgba(0, 164, 239, 0.1);
    border-color: #00a4ef;
}

.btn-social-microsoft i {
    color: #00a4ef;
}

/* Facebook Button */
.btn-social-facebook {
    border-color: #1877f2;
}

.btn-social-facebook:hover {
    background: rgba(24, 119, 242, 0.1);
    border-color: #1877f2;
}

.btn-social-facebook i {
    color: #1877f2;
}

/* Apple Button */
.btn-social-apple {
    border-color: #000000;
}

.btn-social-apple:hover {
    background: rgba(0, 0, 0, 0.05);
    border-color: #000000;
}

.btn-social-apple i {
    color: #000000;
}

/* HGO Portal / Company SSO Button */
.btn-social-hgodev {
    border-color: #0066cc;
}

.btn-social-hgodev:hover {
    background: rgba(0, 102, 204, 0.1);
    border-color: #0066cc;
}

.btn-social-hgodev i {
    color: #0066cc;
}

/* Responsive - Small Width */
@media (max-width: 640px) {
    .auth-container {
        max-width: 100%;
        padding: 0 var(--spacing-sm);
    }

    .auth-card {
        padding: var(--spacing-lg);
    }

    .auth-header .auth-icon {
        width: 56px;
        height: 56px;
    }

    .auth-header h1 {
        font-size: 1.25rem;
    }

    .btn-social {
        padding: 0.625rem 0.875rem;
        font-size: 0.9rem;
    }
}

/* Responsive - Small Height (start from top to ensure all content visible) */
@media (max-height: 700px) {
    .auth-container {
        margin: var(--spacing-md) auto; /* Less margin, start closer to top */
    }
}