/* Authentication Pages Styles */

.auth-layout {
    background: var(--gradient-header);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.auth-container {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}

.auth-card {
    background: var(--color-surface-elevated);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-8);
    border: 1px solid var(--color-border);
}

.auth-card-wide {
    max-width: 600px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-logo h1 {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

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

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

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

.form-input {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    background: var(--color-surface-elevated);
    color: var(--color-text-primary);
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary-dark);
    box-shadow: 0 0 0 3px var(--color-primary-muted);
}

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

.form-hint {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--space-2);
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.checkbox-container input[type="checkbox"] {
    margin: 0;
    flex-shrink: 0;
}

.checkbox-container label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: var(--space-6) 0;
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
}

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

.auth-divider span {
    padding: 0 var(--space-4);
}

.oauth-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.btn-oauth {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-elevated);
    color: var(--color-text-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-oauth:hover {
    background: var(--color-surface-secondary);
    border-color: var(--color-border-strong);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-subtle);
}

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

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

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

/* Plan Selection */
.plan-selection {
    margin: var(--space-6) 0;
}

.plan-selection h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
    text-align: center;
}

.plan-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-3);
}

.plan-option {
    cursor: pointer;
}

.plan-option input[type="radio"] {
    display: none;
}

.plan-card {
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    text-align: center;
    transition: all 0.2s ease;
    position: relative;
    background: var(--color-surface-elevated);
}

.plan-card:hover {
    border-color: var(--color-border-strong);
}

.plan-option input[type="radio"]:checked + .plan-card {
    border-color: var(--color-primary-dark);
    background: var(--color-primary-muted);
}

.plan-popular {
    border-color: var(--color-primary-dark);
    background: var(--color-primary-muted);
}

.plan-badge {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    font-size: var(--text-xs);
    font-weight: 600;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}

.plan-name {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.plan-price {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
}

.plan-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.plan-features div {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
}

/* Responsive Design */
@media (max-width: 640px) {
    .auth-container {
        padding: var(--space-2);
    }
    
    .auth-card {
        padding: var(--space-6);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .oauth-buttons {
        grid-template-columns: 1fr;
    }
    
    .plan-options {
        grid-template-columns: 1fr;
    }
}