/* Authentication Page Styles */

.auth-main {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    width: 100%;
    align-items: center;
}

.auth-card {
    background: white;
    border-radius: 1rem;
    padding: 3rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    max-width: 500px;
    width: 100%;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

.auth-form {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: white;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input:invalid {
    border-color: #ef4444;
}

.btn-large {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.auth-toggle {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

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

.link-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 500;
    cursor: pointer;
    text-decoration: underline;
    font-size: inherit;
}

.link-btn:hover {
    color: var(--primary-dark);
}

.auth-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
    font-weight: 500;
}

.auth-message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.auth-message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.auth-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

/* Features Preview */
.auth-features {
    color: white;
    padding: 2rem;
}

.auth-features h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.feature-list {
    display: grid;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 0.75rem;
    backdrop-filter: blur(10px);
}

.feature-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.feature-item h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.feature-item p {
    margin: 0;
    opacity: 0.9;
    font-size: 0.875rem;
    line-height: 1.4;
}

/* Responsive Design */
@media (max-width: 768px) {
    .auth-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 1rem;
    }
    
    .auth-card {
        padding: 2rem;
    }
    
    .auth-features {
        order: -1;
        padding: 1rem;
    }
    
    .auth-features h3 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .feature-list {
        gap: 1rem;
    }
    
    .feature-item {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .auth-main {
        padding: 1rem 0.5rem;
    }
    
    .auth-card {
        padding: 1.5rem;
    }
    
    .auth-header h1 {
        font-size: 1.5rem;
    }
    
    .form-group input {
        padding: 0.625rem 0.75rem;
    }
    
    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}

/* Form Validation States */
.form-group.has-error input {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group.has-success input {
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.field-error {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

/* Button Loading State */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Smooth Transitions */
.auth-form {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.auth-form.fade-out {
    opacity: 0;
    transform: translateY(-10px);
}

.auth-form.fade-in {
    opacity: 1;
    transform: translateY(0);
}

/* Focus Management */
.auth-card {
    position: relative;
}

.auth-card:focus-within {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04), 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .auth-card {
        border: 2px solid var(--text-primary);
    }
    
    .feature-item {
        border: 1px solid rgba(255, 255, 255, 0.3);
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .loading-spinner {
        animation: none;
    }
    
    .btn.loading::after {
        animation: none;
    }
    
    .auth-form {
        transition: none;
    }
}