/* Authentication Page Styles */
.auth-body {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    font-family: var(--font-primary);
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1200px;
    width: 100%;
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-card {
    padding: var(--spacing-3xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

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

.auth-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
}

.auth-header h1 {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.auth-header p {
    color: var(--gray-600);
    font-size: 1rem;
}

.auth-content {
    flex: 1;
}

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

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

.form-group label {
    font-weight: var(--font-weight-medium);
    color: var(--gray-700);
    font-size: 0.875rem;
}

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

.input-group i {
    position: absolute;
    left: var(--spacing-md);
    color: var(--gray-400);
    font-size: 0.875rem;
    z-index: 2;
}

.input-group input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) calc(var(--spacing-md) + 20px);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--white);
}

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

.input-group input::placeholder {
    color: var(--gray-400);
}

.password-toggle {
    position: absolute;
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
    z-index: 2;
}

.password-toggle:hover {
    color: var(--gray-600);
}

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

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    position: relative;
    transition: all var(--transition-fast);
}

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

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid var(--white);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.forgot-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

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

.btn-full {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-xl) 0;
    color: var(--gray-400);
    font-size: 0.875rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

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

.auth-footer {
    text-align: center;
}

.auth-footer p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

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

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

/* Visual Section */
.auth-visual {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: var(--spacing-3xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.auth-visual::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    animation: float 20s linear infinite;
}

@keyframes float {
    0% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(-5%) translateY(-5%); }
    50% { transform: translateX(-10%) translateY(0); }
    75% { transform: translateX(-5%) translateY(5%); }
    100% { transform: translateX(0) translateY(0); }
}

.visual-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.visual-content h2 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.visual-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    line-height: 1.6;
}

.feature-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.highlight {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: transform var(--transition-fast);
}

.highlight:hover {
    transform: translateY(-2px);
}

.highlight i {
    font-size: 1.25rem;
}

.stats-preview {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* Alert Styles */
.alert {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
}

.alert-error {
    background: rgba(220, 38, 38, 0.1);
    color: var(--error);
    border: 1px solid rgba(220, 38, 38, 0.2);
}

.alert-success {
    background: rgba(22, 163, 74, 0.1);
    color: var(--success);
    border: 1px solid rgba(22, 163, 74, 0.2);
}

.alert-warning {
    background: rgba(217, 119, 6, 0.1);
    color: var(--warning);
    border: 1px solid rgba(217, 119, 6, 0.2);
}

.alert-info {
    background: rgba(14, 165, 233, 0.1);
    color: var(--info);
    border: 1px solid rgba(14, 165, 233, 0.2);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .auth-container {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .auth-visual {
        order: -1;
        padding: var(--spacing-xl);
    }
    
    .visual-content h2 {
        font-size: 2rem;
    }
    
    .feature-highlights {
        grid-template-columns: 1fr;
    }
    
    .stats-preview {
        justify-content: space-around;
    }
}

@media (max-width: 768px) {
    .auth-body {
        padding: var(--spacing-sm);
    }
    
    .auth-card {
        padding: var(--spacing-xl);
    }
    
    .auth-visual {
        padding: var(--spacing-xl);
    }
    
    .visual-content h2 {
        font-size: 1.75rem;
    }
    
    .visual-content p {
        font-size: 1rem;
    }
    
    .form-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
    
    .stats-preview {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .auth-header h1 {
        font-size: 1.5rem;
    }
    
    .visual-content h2 {
        font-size: 1.5rem;
    }
    
    .feature-highlights {
        gap: var(--spacing-sm);
    }
    
    .highlight {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }
}

/* Loading State */
.btn.loading {
    pointer-events: none;
    position: relative;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.btn.loading span {
    opacity: 0;
}

/* Form Validation */
.form-group.error input {
    border-color: var(--error);
}

.form-group.error .error-message {
    color: var(--error);
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
}

.form-group.success input {
    border-color: var(--success);
}

/* Focus Management */
*:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.input-group input:focus {
    outline: none;
}