:root {
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e7eb;
    --neutral-300: #d1d5db;
    --neutral-400: #9ca3af;
    --neutral-500: #6b7280;
    --neutral-600: #4b5563;
    --neutral-700: #374151;
    --neutral-800: #1f2937;
    --neutral-900: #111827;
    --primary: #059669;
    --primary-light: #d1fae5;
    --primary-dark: #047857;
    --secondary: #2563eb;
    --secondary-light: #dbeafe;
    --accent: #d97706;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--neutral-50);
    color: var(--neutral-800);
    padding-top: 64px;
    font-size: 0.9375rem;
    line-height: 1.6;
}

.main-content {
    min-height: calc(100vh - 180px);
}

/* Navbar */
.navbar {
    background: #fff !important;
    border-bottom: 1px solid var(--neutral-200);
    box-shadow: none;
    padding: 0.75rem 0;
}

.navbar-brand {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.3px;
    color: var(--neutral-900) !important;
}

.navbar-brand .brand-highlight {
    color: var(--primary);
}

.navbar .nav-link {
    color: var(--neutral-500) !important;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.15s;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: var(--neutral-900) !important;
}

/* Buttons */
.btn {
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    transition: none;
}

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

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

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

.btn-outline-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.btn-secondary {
    background: var(--neutral-100);
    border-color: var(--neutral-200);
    color: var(--neutral-700);
}

.btn-secondary:hover {
    background: var(--neutral-200);
    color: var(--neutral-800);
}

/* Cards */
.card {
    border: 1px solid var(--neutral-200);
    border-radius: 8px;
    box-shadow: none;
    background: #fff;
}

.card-body {
    padding: 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--neutral-900);
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.125rem; }
h4 { font-size: 1rem; }

.lead {
    font-size: 1rem;
    font-weight: 400;
    color: var(--neutral-500);
}

.text-muted {
    color: var(--neutral-400) !important;
}

.small, small {
    font-size: 0.8125rem;
}

/* Hero section */
.hero-section {
    padding: 4rem 0 3rem;
    background: var(--neutral-50);
}

.hero-section h1 {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    color: var(--neutral-900);
}

/* Forms */
.form-control, .form-select {
    border-radius: 6px;
    border-color: var(--neutral-200);
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    color: var(--neutral-800);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.15);
}

.form-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--neutral-600);
    margin-bottom: 0.375rem;
}

/* Badges */
.badge {
    font-weight: 500;
    font-size: 0.6875rem;
    padding: 0.25em 0.6em;
    border-radius: 4px;
}

.badge-primary {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.badge-secondary {
    background: var(--secondary-light);
    color: var(--secondary);
}

/* Pagination */
.pagination .page-link {
    border: 1px solid var(--neutral-200);
    color: var(--neutral-600);
    font-size: 0.8125rem;
    padding: 0.375rem 0.75rem;
}

.pagination .page-item.active .page-link {
    background: var(--neutral-800);
    border-color: var(--neutral-800);
    color: #fff;
}

.pagination .page-link:hover {
    background: var(--neutral-100);
}

/* Tables */
.table {
    font-size: 0.8125rem;
    color: var(--neutral-700);
}

.table thead th {
    border-bottom: 1px solid var(--neutral-200);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--neutral-500);
}

/* Code blocks */
code {
    font-size: 0.8rem;
    color: var(--neutral-800);
    background: var(--neutral-100);
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
}

pre {
    background: var(--neutral-100);
    border: 1px solid var(--neutral-200);
    border-radius: 6px;
    font-size: 0.8rem;
}

/* Leaflet */
.leaflet-container {
    border-radius: 8px;
}

/* Footer */
footer {
    background: #fff !important;
    border-top: 1px solid var(--neutral-200);
    color: var(--neutral-500) !important;
}

footer a {
    color: var(--neutral-500) !important;
}

footer a:hover {
    color: var(--neutral-800) !important;
}

/* Dividers */
hr {
    border-color: var(--neutral-200);
    opacity: 1;
}

/* Links */
a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--primary-dark);
}

/* Featured card icons */
.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 1.25rem;
    font-weight: 600;
}

/* Stat cards */
.stat-card {
    border: 1px solid var(--neutral-200);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
}

.stat-card .stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--neutral-900);
}

.stat-card .stat-label {
    font-size: 0.8125rem;
    color: var(--neutral-500);
    margin-top: 0.25rem;
}

/* Filter sidebar */
.filter-section {
    border: 1px solid var(--neutral-200);
    border-radius: 8px;
    padding: 1.25rem;
    background: #fff;
}

.filter-section h5 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Section spacing */
.section-title {
    margin-bottom: 1.5rem;
}

.section-title h2 {
    margin-bottom: 0.25rem;
}

.section-title p {
    color: var(--neutral-500);
    font-size: 0.875rem;
}

/* Metadata rows */
.meta-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--neutral-500);
}

.meta-row + .meta-row {
    margin-top: 0.25rem;
}

/* Document cards */
.doc-card .card-title {
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.75rem;
}

.doc-card .doc-org {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--neutral-700);
    margin-bottom: 0.5rem;
}

.doc-card .doc-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    font-size: 0.75rem;
    color: var(--neutral-500);
    margin-bottom: 0.75rem;
}

.doc-card .doc-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.doc-card .doc-summary {
    font-size: 0.8125rem;
    color: var(--neutral-600);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.doc-card .doc-key-findings {
    background: var(--neutral-50);
    border: 1px solid var(--neutral-200);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}

.doc-card .doc-key-findings p {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--neutral-700);
    margin-bottom: 0.375rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.doc-card .doc-key-findings ul {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.75rem;
    color: var(--neutral-500);
    line-height: 1.6;
}

.doc-card .doc-key-findings ul li {
    padding: 0.125rem 0;
}

.doc-card .doc-key-findings ul li::before {
    content: '—';
    margin-right: 0.375rem;
    color: var(--neutral-400);
}

.doc-card .doc-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-bottom: 1rem;
}

.doc-card .doc-tags .tag {
    font-size: 0.6875rem;
    color: var(--primary-dark);
    background: var(--primary-light);
    padding: 0.125rem 0.5rem;
    border-radius: 3px;
}

.doc-card .doc-tags .tag-label {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--neutral-600);
    margin-right: 0.25rem;
}

/* Detail page */
.doc-detail-header {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--neutral-200);
    margin-bottom: 1.5rem;
}

.doc-detail-header h1 {
    font-size: 1.375rem;
    line-height: 1.4;
}

.doc-detail-body h5 {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--neutral-500);
    margin-bottom: 0.75rem;
}

.doc-detail-body p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--neutral-700);
}

.doc-detail-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.doc-detail-meta .meta-item {
    padding: 0.75rem;
    background: var(--neutral-50);
    border-radius: 6px;
}

.doc-detail-meta .meta-item .label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--neutral-500);
    margin-bottom: 0.25rem;
}

.doc-detail-meta .meta-item .value {
    font-size: 0.875rem;
    color: var(--neutral-800);
}

.doc-detail-meta .meta-item.full-width {
    grid-column: 1 / -1;
}

/* Active nav indicator */
.navbar .nav-item .nav-link.active {
    color: var(--neutral-900) !important;
    position: relative;
}

/* Responsive */
@media (max-width: 768px) {
    body { padding-top: 56px; }
    .hero-section { padding: 2.5rem 0 1.5rem; }
    .hero-section h1 { font-size: 1.5rem; }
    .stat-card { padding: 1rem; }
    .stat-card .stat-number { font-size: 1.375rem; }
}