/* ========================================
   Modern Styles for Soil Health Application
   Light Theme - Clean and Professional
   ======================================== */

/* CSS Reset & Base Styles */
* {
    box-sizing: border-box;
}

:root {
    /* Color Palette - Light Theme */
    --primary-color: #0DA7DF;
    --primary-hover: #0b8fc7;
    --primary-dark: #0a7ba8;
    --secondary-color: #6c757d;
    --secondary-hover: #5a6268;
    --danger-color: #dc3545;
    --danger-hover: #c82333;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    
    /* Neutral Colors - Light Theme */
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #999;
    --border-color: #dee2e6;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --bg-body: #f5f7fa;
    --bg-content: #ffffff;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    
    /* Shadows - Light Theme */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    border-radius: 0 0 var(--radius-md) 0;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Screen Reader Only Text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Container & Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header Improvements */
.site-header {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border-bottom: 2px solid var(--primary-color);
}

.customer-text {
    font-family: 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-size: 1.75rem;
    color: var(--text-primary);
    margin: 0;
    font-weight: 600;
}

/* Navigation */
.main-navigation {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-sm);
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: 0;
    padding: 0;
}

.nav-item {
    margin: 0;
}

.nav-link {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.nav-link:hover,
.nav-link:focus {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.page-header h1 {
    margin: 0;
    color: var(--text-primary);
    font-size: 2rem;
    font-weight: 600;
}

.page-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.user-count,
.client-count {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: var(--spacing-sm) 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--secondary-hover);
    border-color: var(--secondary-hover);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

.btn-danger:hover,
.btn-danger:focus {
    background-color: var(--danger-hover);
    border-color: var(--danger-hover);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
    font-size: 0.9rem;
}

.data-table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.data-table thead th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--primary-dark);
    white-space: nowrap;
}

.data-table tbody tr {
    transition: background-color var(--transition-fast);
}

.data-table tbody tr:nth-child(even) {
    background-color: var(--bg-light);
}

.data-table tbody tr:hover {
    background-color: rgba(13, 167, 223, 0.1);
}

.data-table tbody td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* Action Links */
.action-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.action-link:hover,
.action-link:focus {
    color: var(--primary-hover);
    text-decoration: underline;
}

.action-link-danger {
    color: var(--danger-color);
}

.action-link-danger:hover,
.action-link-danger:focus {
    color: var(--danger-hover);
}

/* Status & Type Badges */
.status-badge,
.type-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
}

.status-active {
    background-color: #d4edda;
    color: #155724;
}

.status-inactive {
    background-color: #f8d7da;
    color: #721c24;
}

.type-admin {
    background-color: #d1ecf1;
    color: #0c5460;
}

.type-user {
    background-color: #e2e3e5;
    color: #383d41;
}

.type-agent {
    background-color: #fff3cd;
    color: #856404;
}

.type-client {
    background-color: #cce5ff;
    color: #004085;
}

/* Forms */
.form-container {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    max-width: 800px;
}

.form-fieldset {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.form-fieldset legend {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 0 var(--spacing-sm);
}

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

.form-group-inline {
    display: inline-block;
    margin-right: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

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

.form-label.required::after {
    content: ' *';
    color: var(--danger-color);
}

.required-indicator {
    color: var(--danger-color);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(13, 167, 223, 0.25);
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--bg-light);
    opacity: 1;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.form-inline {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.form-actions {
    display: flex;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    justify-content: flex-end;
    flex-wrap: wrap;
}

/* Login Panel */
.login-panel {
    padding: var(--spacing-md);
}

.user-welcome {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.welcome-message {
    color: var(--text-primary);
    font-size: 0.95rem;
}

.logout-form {
    display: inline-block;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

/* Section Styles */
.norms-section {
    margin-bottom: var(--spacing-xl);
}

.norms-section h2 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
}

/* Unit Indicators */
.unit-indicator {
    color: var(--primary-color);
    font-style: italic;
    font-size: 0.85rem;
}

/* Footer */
.site-footer {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    border-top: 2px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-content p {
    color: var(--text-secondary);
    margin: 0;
}

/* Loading Indicator */
.loading-indicator {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    z-index: 9999;
}

/* Dialog Container */
.dialog-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 90%;
    max-height: 90%;
    overflow: auto;
    z-index: 9999;
}

/* Responsive Design */
@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .page-header h1 {
        font-size: 1.5rem;
    }
    
    .nav-menu {
        flex-direction: column;
    }
    
    .form-container {
        padding: var(--spacing-md);
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
    
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .data-table {
        font-size: 0.8rem;
    }
    
    .data-table thead th,
    .data-table tbody td {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 0.75rem;
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
    }
    
    .customer-text {
        font-size: 1.25rem;
    }
    
    .page-header h1 {
        font-size: 1.25rem;
    }
}

/* Print Styles */
@media print {
    .skip-link,
    .nav-menu,
    .page-actions,
    .form-actions,
    .action-link {
        display: none !important;
    }
    
    .data-table {
        border: 1px solid #000;
    }
    
    .data-table thead {
        background: #f0f0f0 !important;
        color: #000 !important;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    /* Add dark mode styles if needed */
}