/* Authentication Pages Styles */

.auth-body {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.auth-header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md) 0;
}

.auth-header .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.auth-header .brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-inverse);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
}

.auth-header .brand i {
    font-size: 1.5rem;
}

.auth-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.auth-nav a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.auth-nav a:hover {
    color: var(--text-inverse);
}

.auth-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl) var(--spacing-md);
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    max-width: 1200px;
    width: 100%;
    align-items: start;
}

.auth-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-header-section {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.auth-header-section h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-sm) 0;
}

.auth-header-section p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0;
}

/* Plan Selection */
.plan-selection {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.plan-option {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.plan-option:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.plan-option.active {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.plan-badge {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: var(--text-inverse);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
}

.plan-header {
    margin-bottom: var(--spacing-md);
}

.plan-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.plan-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.plan-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.plan-features i {
    color: var(--success-color);
    font-size: 0.75rem;
}

/* Social Login */
.social-login {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-social:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.btn-social i {
    font-size: 1.125rem;
}

.btn-google:hover {
    border-color: #db4437;
    color: #db4437;
}

.btn-github:hover {
    border-color: #333;
    color: #333;
}

.btn-orcid:hover {
    border-color: #a6ce39;
    color: #a6ce39;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-xl) 0;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

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

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

/* Form Styles */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group i {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-tertiary);
    font-size: 0.875rem;
    z-index: 1;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.password-toggle {
    position: absolute;
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

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

/* Password Strength */
.password-strength {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.strength-bar {
    flex: 1;
    height: 4px;
    background: var(--gray-200);
    border-radius: 2px;
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    width: 0%;
    background: var(--danger-color);
    transition: all var(--transition-normal);
}

.strength-text {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-tertiary);
}

/* Form Options */
.form-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1.4;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 16px;
    height: 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--text-inverse);
    font-size: 0.625rem;
}

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.forgot-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    margin-left: auto;
}

.forgot-link:hover {
    text-decoration: underline;
}

/* Button Styles */
.btn-full {
    width: 100%;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
}

.btn-spinner {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Auth Footer */
.auth-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.auth-footer p {
    color: var(--text-secondary);
    margin: 0;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

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

/* Demo Section */
.demo-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.demo-divider {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

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

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

.demo-note {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin: var(--spacing-sm) 0 0 0;
}

/* Sidebar */
.auth-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    padding: var(--spacing-xl);
}

.feature-highlight,
.benefit-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-icon,
.benefit-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-inverse);
    font-size: 1.25rem;
}

.feature-highlight h3,
.benefit-item h3 {
    color: var(--text-inverse);
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.feature-highlight p,
.benefit-item p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    line-height: 1.5;
}

/* Testimonial */
.testimonial {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.testimonial blockquote {
    color: var(--text-inverse);
    font-style: italic;
    margin: 0 0 var(--spacing-lg) 0;
    font-size: 1rem;
    line-height: 1.6;
}

.testimonial cite {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial cite img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial cite div {
    display: flex;
    flex-direction: column;
}

.testimonial cite strong {
    color: var(--text-inverse);
    font-weight: 600;
}

.testimonial cite span {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

/* Stats Section */
.stats-section {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stats-section h3 {
    color: var(--text-inverse);
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 var(--spacing-lg) 0;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-inverse);
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-xs);
}

/* Footer Section */
.auth-footer-section {
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg) 0;
}

.auth-footer-section .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-inverse);
}

.footer-text p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .auth-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        max-width: 500px;
    }
    
    .auth-sidebar {
        order: -1;
        padding: 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .auth-main {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .auth-card {
        padding: var(--spacing-2xl);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .plan-selection {
        grid-template-columns: 1fr;
    }
    
    .auth-nav {
        display: none;
    }
    
    .auth-footer-section .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .auth-header-section h1 {
        font-size: 1.5rem;
    }
    
    .auth-card {
        padding: var(--spacing-xl);
    }
    
    .social-login {
        gap: var(--spacing-sm);
    }
    
    .btn-social {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }
}