/**
 * Login Page Styles
 * RGAA/WCAG Compliance Management Platform
 */

/* Login page layout */
.login-page {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

/* Admin theme background */
.admin-login {
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-primary-hover) 100%);
}

/* Login container */
.login-container {
    width: 100%;
    max-width: 400px;
    position: relative;
}

.login-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(2rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Login header */
.login-header {
    background: white;
    padding: var(--spacing-2xl) var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    border-bottom: 1px solid var(--gray-100);
}

.login-header h1 {
    color: var(--gray-900);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.login-header p {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* Login form */
.login-form {
    padding: var(--spacing-xl);
}

.login-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.login-form label {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.login-form input {
    font-size: 1rem;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    transition: all 0.3s ease;
}

.login-form input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

/* Admin theme input focus */
.admin-login .login-form input:focus {
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

/* Login button */
.btn-login {
    width: 100%;
    font-size: 1rem;
    font-weight: 600;
    padding: var(--spacing-md) var(--spacing-lg);
    margin-top: var(--spacing-md);
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.btn-login:active {
    transform: translateY(0);
}

/* Admin theme button */
.admin-login .btn-login {
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-primary-hover) 100%);
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.admin-login .btn-login:hover {
    box-shadow: 0 8px 25px rgba(124, 58, 237, 0.4);
}

/* Button loading state */
.btn-loading {
    display: none !important;
}

.btn-login.loading .btn-text {
    display: none;
}

.btn-login.loading .btn-loading {
    display: flex !important;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn-login.loading {
    cursor: not-allowed;
    opacity: 0.8;
}

/* Login links */
.login-links {
    text-align: center;
    padding: 0 var(--spacing-xl) var(--spacing-lg);
}

.forgot-password-link {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-decoration: none;
    transition: var(--transition-base);
}

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

.admin-login .forgot-password-link:hover {
    color: var(--admin-primary);
}

/* Login footer */
.login-footer {
    background: var(--gray-50);
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: center;
    border-top: 1px solid var(--gray-100);
}

.login-footer p {
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--gray-600);
}

.login-footer p:last-child {
    margin-bottom: 0;
}

.login-footer a {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
}

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

.admin-login .login-footer a {
    color: var(--admin-primary);
}

.security-notice {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm);
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--primary-color);
}

.admin-login .security-notice {
    background: rgba(124, 58, 237, 0.1);
    border-left-color: var(--admin-primary);
}

.security-notice small {
    color: var(--gray-600);
    font-size: 0.75rem;
}

.app-version {
    color: var(--gray-400) !important;
    font-size: 0.75rem !important;
}

/* Alert styles in login context */
.login-card .alert {
    margin: var(--spacing-md) var(--spacing-xl) 0;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
}

.login-card .alert-error {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border: 1px solid #fecaca;
    color: #991b1b;
}

.login-card .alert-success {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 1px solid #bbf7d0;
    color: #166534;
}

/* Responsive design */
@media (max-width: 640px) {
    .login-page {
        padding: var(--spacing-sm);
    }
    
    .login-container {
        max-width: 100%;
    }
    
    .login-header {
        padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .login-form,
    .login-links,
    .login-footer {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .login-card .alert {
        margin-left: var(--spacing-md);
        margin-right: var(--spacing-md);
    }
}

/* High contrast support */
@media (prefers-contrast: high) {
    .login-card {
        border: 2px solid var(--gray-900);
    }
    
    .login-form input {
        border: 2px solid var(--gray-900);
    }
    
    .btn-login {
        border: 2px solid var(--gray-900);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .login-card {
        animation: none;
    }
    
    .login-form input:focus {
        transform: none;
    }
    
    .btn-login:hover {
        transform: none;
    }
}

/* Focus visible for better accessibility */
.login-form input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.admin-login .login-form input:focus-visible {
    outline-color: var(--admin-primary);
}

.btn-login:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

/* Loading shimmer effect */
@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.btn-login.loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    animation: shimmer 2s infinite;
}