/* Login Form Styles */
/* Following SocialConnect design system and styling guide */

.login-form-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-background-light) 0%, #f8fafc 100%);
}

.login-container {
    width: 100%;
    max-width: 480px;
}

.login-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-3xl);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: box-shadow 150ms ease-out;
}

.login-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

.login-title {
    font-size: var(--font-size-h2);
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.login-subtitle {
    font-size: var(--font-size-body);
    color: var(--color-text-body);
    line-height: 1.5;
}

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

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

.form-label {
    font-size: var(--font-size-small);
    font-weight: 500;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xs);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-body);
    font-family: inherit;
    background: var(--color-white);
    color: var(--color-text-dark);
    transition: all 150ms ease-out;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-brand-purple);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form-input:invalid:not(:focus):not(:placeholder-shown) {
    border-color: var(--color-error);
}

.form-input.error {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

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

.password-input {
    padding-right: 48px;
}

.password-toggle {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    color: var(--color-text-body);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: color 150ms ease-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.password-toggle:focus {
    outline: none;
    color: var(--color-brand-purple);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.password-toggle-icon {
    transition: opacity 150ms ease-out;
}

.error-message {
    font-size: var(--font-size-small);
    color: var(--color-error);
    margin-top: var(--spacing-xs);
    min-height: 20px;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.error-message:empty {
    display: none;
}

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

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.checkbox-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    background: var(--color-white);
    position: relative;
    transition: all 150ms ease-out;
    flex-shrink: 0;
}

.checkbox-input:checked + .checkbox-custom {
    background: var(--color-brand-purple);
    border-color: var(--color-brand-purple);
}

.checkbox-input:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 5px;
    width: 6px;
    height: 10px;
    border: 2px solid var(--color-white);
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
}

.checkbox-input:focus + .checkbox-custom {
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.checkbox-label {
    font-size: var(--font-size-small);
    color: var(--color-text-body);
}

.forgot-link {
    font-size: var(--font-size-small);
    color: var(--color-brand-purple);
    text-decoration: none;
    font-weight: 500;
    transition: color 150ms ease-out;
}

.forgot-link:hover {
    color: #7C3AED;
    text-decoration: underline;
}

.login-submit {
    width: 100%;
    position: relative;
    margin-top: var(--spacing-sm);
    font-weight: 500;
    min-height: 48px;
}

.login-submit:disabled {
    background: var(--color-border);
    color: var(--color-text-body);
    cursor: not-allowed;
    transform: none;
}

.login-submit:disabled:hover {
    background: var(--color-border);
    transform: none;
}

.submit-text {
    transition: opacity 150ms ease-out;
}

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.form-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.signup-prompt {
    font-size: var(--font-size-small);
    color: var(--color-text-body);
}

.signup-link {
    color: var(--color-brand-purple);
    text-decoration: none;
    font-weight: 500;
    transition: color 150ms ease-out;
}

.signup-link:hover {
    color: #7C3AED;
    text-decoration: underline;
}

/* Success state */
.form-input.success {
    border-color: var(--color-success);
}

.success-message {
    font-size: var(--font-size-small);
    color: var(--color-success);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Responsive Design */
@media (max-width: 767px) {
    .login-form-section {
        padding: var(--spacing-md);
        min-height: 100vh;
    }
    
    .login-card {
        padding: var(--spacing-lg);
    }
    
    .login-title {
        font-size: var(--font-size-h3);
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: var(--spacing-md);
        border-radius: var(--border-radius-md);
    }
    
    .login-header {
        margin-bottom: var(--spacing-lg);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .login-card,
    .form-input,
    .password-toggle,
    .checkbox-custom,
    .forgot-link,
    .signup-link,
    .submit-text {
        transition: none;
    }
    
    .spinner {
        animation: none;
    }
}