/**
 * Login CSS for YOM Clipboard System
 * Clean, professional login page styling consistent with admin design
 */

/* CSS Variables matching admin design */
:root {
    --login-primary: #2c5530;
    --login-primary-light: #4a7c59;
    --login-primary-dark: #1e3a21;
    --login-accent: #27ae60;
    --login-surface: #ffffff;
    --login-background: linear-gradient(135deg, #2c5530, #4a7c59);
    --login-text-primary: #2c5530;
    --login-text-secondary: #666666;
    --login-text-white: #ffffff;
    --login-border: #dee2e6;
    --login-shadow: 0 10px 25px rgba(0,0,0,0.2);
    --login-shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --login-radius: 12px;
    --login-radius-sm: 6px;
    --login-spacing: 1rem;
    --login-spacing-lg: 2rem;
    --login-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
}

/* Base styles */
body.login-page {
    font-family: var(--login-font-family);
    background: var(--login-background);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--login-text-primary);
}

/* Login container */
.login-container {
    background: var(--login-surface);
    padding: var(--login-spacing-lg);
    border-radius: var(--login-radius);
    box-shadow: var(--login-shadow);
    width: 100%;
    max-width: 400px;
    margin: var(--login-spacing);
}

/* Logo and header */
.login-header {
    text-align: center;
    margin-bottom: var(--login-spacing-lg);
}

.login-logo {
    width: 60px;
    height: 60px;
    background: var(--login-primary);
    border-radius: var(--login-radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--login-text-white);
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: var(--login-spacing);
}

.login-title {
    margin: 0 0 0.5rem 0;
    color: var(--login-text-primary);
    font-size: 1.5rem;
    font-weight: 600;
}

.login-subtitle {
    margin: 0;
    color: var(--login-text-secondary);
    font-size: 0.875rem;
}

/* Form styles */
.login-form {
    margin-bottom: var(--login-spacing);
}

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

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

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--login-border);
    border-radius: var(--login-radius-sm);
    font-size: 1rem;
    font-family: var(--login-font-family);
    background: var(--login-surface);
    color: var(--login-text-primary);
    box-sizing: border-box;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--login-accent);
    box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.form-control:invalid {
    border-color: #dc3545;
}

/* Button styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--login-radius-sm);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    font-family: var(--login-font-family);
}

.btn-primary {
    background: var(--login-primary);
    color: var(--login-text-white);
    width: 100%;
}

.btn-primary:hover {
    background: var(--login-primary-light);
    transform: translateY(-1px);
    box-shadow: var(--login-shadow-sm);
}

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

.btn-link {
    background: transparent;
    color: var(--login-accent);
    text-decoration: none;
    padding: 0.5rem;
    font-size: 0.875rem;
}

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

/* Alert styles */
.alert {
    padding: 0.75rem;
    border-radius: var(--login-radius-sm);
    margin-bottom: var(--login-spacing);
    border: 1px solid transparent;
}

.alert-danger {
    background: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-success {
    background: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-info {
    background: #d9edf7;
    border-color: #bce8f1;
    color: #31708f;
}

/* Footer links */
.login-footer {
    text-align: center;
    padding-top: var(--login-spacing);
    border-top: 1px solid var(--login-border);
}

.login-footer p {
    margin: 0.5rem 0;
    font-size: 0.875rem;
    color: var(--login-text-secondary);
}

/* Demo credentials */
.demo-credentials {
    background: #f8f9fa;
    border: 1px solid var(--login-border);
    border-radius: var(--login-radius-sm);
    padding: var(--login-spacing);
    margin-bottom: var(--login-spacing);
}

.demo-credentials h4 {
    margin: 0 0 0.5rem 0;
    color: var(--login-text-primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.demo-credentials p {
    margin: 0.25rem 0;
    font-size: 0.875rem;
    color: var(--login-text-secondary);
    font-family: 'Courier New', monospace;
}

/* Loading state */
.btn-loading {
    position: relative;
    color: transparent;
}

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

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Responsive design */
@media (max-width: 480px) {
    .login-container {
        margin: 0.5rem;
        padding: 1.5rem;
    }
    
    .login-title {
        font-size: 1.25rem;
    }
    
    .form-control,
    .btn {
        font-size: 0.875rem;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --login-surface: #1e1e1e;
        --login-text-primary: #e0e0e0;
        --login-text-secondary: #b0b0b0;
        --login-border: #333333;
    }
    
    .demo-credentials {
        background: #2a2a2a;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .login-container {
        border: 2px solid var(--login-text-primary);
    }
    
    .form-control,
    .btn {
        border-width: 2px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for accessibility */
.form-control:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--login-accent);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .login-container {
        box-shadow: none;
        border: 1px solid var(--login-border);
    }
    
    .btn {
        display: none;
    }
}