/* ==========================================================================
   Zyrova Mood Journal - Authentication Styles
   ========================================================================== */

/* Authentication Layout
   ========================================================================== */

.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-background) 100%);
    padding: var(--space-4);
}

.auth-card {
    background-color: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-8);
    width: 100%;
    max-width: 400px;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

/* Authentication Header
   ========================================================================== */

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

.auth-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-md);
}

.auth-logo svg {
    width: 32px;
    height: 32px;
    color: var(--color-white);
}

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

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

/* Authentication Form
   ========================================================================== */

.auth-form {
    margin-bottom: var(--space-6);
}

.auth-form .form-group {
    margin-bottom: var(--space-5);
}

.auth-form .form-label {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.auth-form .form-input {
    padding: var(--space-4);
    font-size: var(--font-size-base);
    border: 2px solid var(--color-border);
    transition: all var(--transition-normal);
}

.auth-form .form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-100);
    transform: translateY(-1px);
}

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

.auth-form .form-input:invalid:focus {
    box-shadow: 0 0 0 4px rgba(244, 67, 54, 0.1);
}

/* Password Input Group
   ========================================================================== */

.password-input-group {
    position: relative;
}

.password-input-group .form-input {
    padding-right: var(--space-12);
}

.password-toggle {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    color: var(--color-text-primary);
    background-color: var(--color-gray-100);
}

.password-toggle svg {
    width: 18px;
    height: 18px;
}

/* Remember Me & Forgot Password
   ========================================================================== */

.auth-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
    gap: var(--space-3);
}

.remember-me {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
}

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

.forgot-password {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.forgot-password:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Authentication Buttons
   ========================================================================== */

.auth-submit {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--color-white);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.auth-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.auth-submit:active {
    transform: translateY(0);
}

.auth-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.auth-submit .spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-white);
}

.auth-submit.loading .auth-submit-text {
    opacity: 0;
}

/* Demo Account Button
   ========================================================================== */

.demo-account-btn {
    width: 100%;
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    background-color: var(--color-gray-100);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.demo-account-btn:hover {
    background-color: var(--color-gray-200);
    border-color: var(--color-gray-300);
    color: var(--color-text-primary);
}

.demo-account-btn svg {
    width: 16px;
    height: 16px;
}

/* Authentication Links
   ========================================================================== */

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

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

.auth-link a {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Privacy Notice
   ========================================================================== */

.privacy-notice {
    background-color: var(--color-primary-50);
    border: 1px solid var(--color-primary-200);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.privacy-notice svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.privacy-notice-content {
    flex: 1;
}

.privacy-notice-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.privacy-notice-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin: 0;
}

/* Registration Benefits
   ========================================================================== */

.auth-benefits {
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-light);
}

.auth-benefits-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
    text-align: center;
}

.auth-benefits-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.auth-benefit {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.auth-benefit svg {
    width: 14px;
    height: 14px;
    color: var(--color-success);
    flex-shrink: 0;
}

/* Terms and Newsletter
   ========================================================================== */

.terms-group {
    margin-bottom: var(--space-5);
}

.terms-checkbox,
.newsletter-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.terms-checkbox input[type="checkbox"],
.newsletter-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
    margin-top: 2px;
    flex-shrink: 0;
}

.terms-checkbox label,
.newsletter-checkbox label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    cursor: pointer;
    margin: 0;
}

.terms-checkbox a,
.newsletter-checkbox a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}

.terms-checkbox a:hover,
.newsletter-checkbox a:hover {
    text-decoration: underline;
}

/* Forgot Password Modal
   ========================================================================== */

.forgot-modal .modal__content {
    max-width: 400px;
}

.forgot-modal .modal__body {
    text-align: center;
}

.forgot-modal .form-input {
    margin-bottom: var(--space-4);
}

.forgot-modal .btn {
    width: 100%;
    margin-bottom: var(--space-3);
}

.forgot-modal .btn--secondary {
    margin-bottom: 0;
}

/* Validation States
   ========================================================================== */

.form-group.has-error .form-input {
    border-color: var(--color-error);
    background-color: rgba(244, 67, 54, 0.05);
}

.form-group.has-error .form-input:focus {
    box-shadow: 0 0 0 4px rgba(244, 67, 54, 0.1);
}

.form-group.has-success .form-input {
    border-color: var(--color-success);
    background-color: rgba(76, 175, 80, 0.05);
}

.form-group.has-success .form-input:focus {
    box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.1);
}

/* Password Strength Indicator
   ========================================================================== */

.password-strength {
    margin-top: var(--space-2);
    display: none;
}

.password-strength.show {
    display: block;
}

.password-strength-bar {
    height: 4px;
    background-color: var(--color-gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--space-2);
}

.password-strength-fill {
    height: 100%;
    transition: all var(--transition-normal);
    border-radius: var(--radius-full);
}

.password-strength-fill.weak {
    width: 25%;
    background-color: var(--color-error);
}

.password-strength-fill.fair {
    width: 50%;
    background-color: var(--color-warning);
}

.password-strength-fill.good {
    width: 75%;
    background-color: var(--color-info);
}

.password-strength-fill.strong {
    width: 100%;
    background-color: var(--color-success);
}

.password-strength-text {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

.password-strength-text.weak {
    color: var(--color-error);
}

.password-strength-text.fair {
    color: var(--color-warning);
}

.password-strength-text.good {
    color: var(--color-info);
}

.password-strength-text.strong {
    color: var(--color-success);
}

/* Responsive Design
   ========================================================================== */

@media (max-width: 480px) {
    .auth-container {
        padding: var(--space-2);
        align-items: flex-start;
        padding-top: var(--space-8);
    }
    
    .auth-card {
        padding: var(--space-6);
        border-radius: var(--radius-xl);
    }
    
    .auth-title {
        font-size: var(--font-size-xl);
    }
    
    .auth-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }
    
    .auth-benefits-list {
        grid-template-columns: 1fr;
        gap: var(--space-2);
    }
    
    .forgot-modal .modal__content {
        margin: var(--space-4);
    }
}

@media (max-width: 360px) {
    .auth-card {
        padding: var(--space-4);
    }
    
    .auth-header {
        margin-bottom: var(--space-6);
    }
    
    .auth-logo {
        width: 56px;
        height: 56px;
    }
    
    .auth-logo svg {
        width: 28px;
        height: 28px;
    }
}

/* Loading States
   ========================================================================== */

.auth-form.loading {
    pointer-events: none;
    opacity: 0.7;
}

.auth-form.loading .form-input {
    background-color: var(--color-gray-100);
}

/* Focus Management
   ========================================================================== */

.auth-form .form-input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.auth-submit:focus-visible {
    outline: 2px solid var(--color-primary-dark);
    outline-offset: 2px;
}

.demo-account-btn:focus-visible {
    outline: 2px solid var(--color-gray-600);
    outline-offset: 2px;
}

/* High Contrast Mode
   ========================================================================== */

@media (prefers-contrast: high) {
    .auth-card {
        border: 2px solid var(--color-gray-900);
    }
    
    .privacy-notice {
        border: 2px solid var(--color-primary);
    }
    
    .auth-form .form-input {
        border-width: 2px;
    }
}

/* Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .auth-submit {
        transition: none;
    }
    
    .auth-submit:hover {
        transform: none;
    }
    
    .form-input:focus {
        transform: none;
    }
    
    .password-strength-fill {
        transition: none;
    }
}