/* ============================================
   VRINDAVAN MUNICIPALITY — SITE STYLES
   Part 14: Ocean Blue + Nepal Flag Design
   No TailwindCSS — Pure Custom CSS
   ============================================ */

/* ─── Part 13C: Skip Link ─── */
.skip-link {
    position: absolute;
    top: -50px;
    left: 0;
    background: var(--accent);
    color: #fff;
    padding: 10px 20px;
    z-index: 999999;
    font-weight: 700;
    font-size: 0.9rem;
    border-radius: 0 0 8px 0;
    text-decoration: none;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--navy-gold);
    outline-offset: 2px;
}

/* ─── Part 13C: Focus-Visible for Keyboard Users ─── */
*:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

.btn:focus-visible,
.nav-link:focus-visible,
a:focus-visible,
.form-select:focus-visible,
.form-control:focus-visible,
input:focus-visible,
button:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(0, 102, 179, 0.25);
}

.stat-card:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

/* ─── Part 13C: Screen-reader only utility ─── */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* ─── Part 13C: Reduced motion preference ─── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .stat-card:hover {
        transform: none;
    }

    .chart-card:hover {
        transform: none;
    }
}

/* --- Base --- */
body {
    font-family: 'Mukta', 'Noto Sans Devanagari', 'Segoe UI', sans-serif;
    background-color: var(--background);
    color: var(--text-dark);
    line-height: 1.6;
}

/* 9E: Nepali font stack + fallbacks */
.nepali-text,
.stat-label,
.stat-value,
.section-title,
.chart-card .card-header h6,
.navbar-brand,
.breadcrumb,
.btn,
.card,
table,
th,
td,
.form-select,
.form-control,
.form-label,
.text-muted,
small,
.badge,
.popover,
.tooltip,
.leaflet-popup-content {
    font-family: 'Mukta', 'Noto Sans Devanagari', 'Kalimati', 'Segoe UI', sans-serif;
}

/* 9E: Load Devanagari fonts via Google Fonts CSS API (avoids CORS issues) */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Devanagari:wght@400;500;600;700&family=Mukta:wght@400;500;600;700;800&display=swap');

/* 9E: Prevent Devanagari text from breaking awkwardly */
td, th {
    hyphens: auto;
    -webkit-hyphens: auto;
    word-break: break-word;
    overflow-wrap: break-word;
}

canvas {
    max-width: 100%;
}

html {
    scroll-behavior: smooth;
}

/* --- Sub-header (Part 14: Crimson strip) --- */
.sub-header {
    border-bottom: none;
    background: var(--accent) !important;
    color: #fff !important;
}

/* ═══════════════════════════════════════════════════
   9C + Part 14: STAT CARDS — Ocean Blue / Crimson
   ═══════════════════════════════════════════════════ */

.stat-card {
    background: var(--surface);
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* Part 14: Alternating navy/crimson left border */
.stat-card[data-variant="navy"],
.stat-card:nth-child(odd) {
    border-left: 4px solid var(--primary);
}

.stat-card[data-variant="crimson"],
.stat-card:nth-child(even) {
    border-left: 4px solid var(--accent);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Decorative background circle */
.stat-card-bg-circle {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    opacity: 0.06;
    pointer-events: none;
}

/* Stat value */
.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.5px;
}

.stat-card:nth-child(odd) .stat-value {
    color: var(--primary);
}

.stat-card:nth-child(even) .stat-value {
    color: var(--accent);
}

/* Stat label */
.stat-card .stat-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-top: 2px;
    line-height: 1.3;
}

/* Stat badge */
.stat-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 0.65rem;
    color: var(--text-muted);
    opacity: 0.6;
    margin-top: 6px;
}

.stat-badge i {
    font-size: 0.6rem;
}

/* Icon wrapper with glow */
.stat-icon-wrapper {
    position: relative;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    opacity: 0.15;
}

.stat-icon-inner {
    position: relative;
    font-size: 1.4rem;
    z-index: 1;
}

/* Part 14: Alternating icon colors */
.stat-card:nth-child(odd) .stat-icon-inner {
    color: var(--stat-accent, var(--primary));
}

.stat-card:nth-child(even) .stat-icon-inner {
    color: var(--stat-accent, var(--accent));
}

.stat-card:nth-child(odd):hover .stat-icon-inner {
    filter: drop-shadow(0 0 8px var(--primary-light));
}

.stat-card:nth-child(even):hover .stat-icon-inner {
    filter: drop-shadow(0 0 8px var(--accent));
}

/* Accent-colored top border variant */
.stat-card[data-variant="accent-top"] {
    border-left: none;
    border-top: 3px solid var(--stat-accent, var(--accent));
}

/* ═══════════════════════════════════════════════════
   9D + Part 14: LOADING SKELETON STATES
   ═══════════════════════════════════════════════════ */

@keyframes skeleton-shimmer {
    0% { background-position: -200px 0; }
    100% { background-position: 200px 0; }
}

@keyframes skeleton-pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.7; }
}

.chart-skeleton {
    height: 220px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 8px 4px;
    transition: opacity 0.3s ease;
}

.skeleton-title {
    height: 12px;
    width: 60%;
    border-radius: 4px;
    background: linear-gradient(90deg, #d0d8e0 25%, #e2e8f0 50%, #d0d8e0 75%);
    background-size: 400px 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

.skeleton-bars {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 140px;
    padding: 0 4px;
}

.skeleton-bar {
    flex: 1;
    border-radius: 4px 4px 0 0;
    background: linear-gradient(180deg, #c0cad8 0%, #dce4ee 100%);
    animation: skeleton-pulse 1.5s ease-in-out infinite;
    min-height: 20px;
}

.skeleton-legend {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.skeleton-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #c0cad8;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

/* Stat card skeleton */
.stat-skeleton {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1rem;
    border-left: 4px solid #d0d8e0;
}

.stat-skeleton .skeleton-value {
    height: 32px;
    width: 70px;
    border-radius: 4px;
    background: linear-gradient(90deg, #d0d8e0 25%, #e2e8f0 50%, #d0d8e0 75%);
    background-size: 400px 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
    margin-bottom: 8px;
}

.stat-skeleton .skeleton-label {
    height: 14px;
    width: 50%;
    border-radius: 4px;
    background: #dce4ee;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.stat-skeleton .skeleton-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: #dce4ee;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

/* Table skeleton */
.table-skeleton .skeleton-row {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--surface-alt);
}

.table-skeleton .skeleton-cell {
    height: 14px;
    border-radius: 4px;
    background: linear-gradient(90deg, #d0d8e0 25%, #e2e8f0 50%, #d0d8e0 75%);
    background-size: 400px 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

/* Chart wrapper */
.chart-wrapper {
    position: relative;
}

.chart-wrapper canvas {
    transition: opacity 0.4s ease;
}

/* ═══════════════════════════════════════════════════
   9E + Part 14: NEPALI TEXT & CHART TEXT WRAPPING
   ═══════════════════════════════════════════════════ */

.chart-card .card-header h6 {
    font-size: 0.9rem;
    line-height: 1.4;
    word-break: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.chart-card .chart-wrapper {
    min-height: 200px;
}

/* ═══════════════════════════════════════════════════
   CHART CARDS — Part 14: Navy header gradient
   ═══════════════════════════════════════════════════ */

.chart-card {
    background: var(--surface);
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.chart-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.chart-card .card-header {
    background: var(--gradient-card-header);
    border-bottom: none;
    font-weight: 600;
    color: #fff;
    padding: 0.85rem 1.25rem;
    position: relative;
}

/* Part 14: Crimson accent line under chart header */
.chart-card .card-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
}

.chart-card .card-header h6 {
    color: #fff;
}

.chart-card .card-body {
    padding: 1.25rem;
}

/* ═══════════════════════════════════════════════════
   BUTTONS — Part 14: Navy primary, Crimson accent
   ═══════════════════════════════════════════════════ */

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

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

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

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

.btn-accent {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #fff;
    font-weight: 500;
}

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

/* ═══════════════════════════════════════════════════
   NAVBAR — Part 14: Navy gradient with crimson accent
   ═══════════════════════════════════════════════════ */

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease;
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.1);
}

.navbar-dark .navbar-nav .nav-link.active {
    color: #fff;
    background-color: rgba(220, 20, 60, 0.3);
    border-bottom: 2px solid var(--accent);
}

/* ═══════════════════════════════════════════════════
   BREADCRUMB (Part 11B) — Navy + Crimson
   ═══════════════════════════════════════════════════ */

.breadcrumb {
    background: transparent;
    padding: 0;
}

.breadcrumb-item a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.15s;
}

.breadcrumb-item a:hover {
    color: var(--accent);
    text-decoration: underline;
}

.breadcrumb-item.active {
    color: var(--text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    color: var(--text-muted);
    font-weight: 600;
}

/* ═══════════════════════════════════════════════════
   TABLE OF CONTENTS SIDEBAR (Part 11C) — Navy + Crimson
   ═══════════════════════════════════════════════════ */

.toc-sidebar {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--surface-alt);
    overflow: hidden;
    position: sticky;
    top: 16px;
    max-height: calc(100vh - 32px);
    display: flex;
    flex-direction: column;
}

.toc-sidebar-header {
    padding: 12px 16px;
    background: var(--gradient-navy);
    color: #fff;
    border-bottom: 3px solid var(--accent);
}

.toc-sidebar-body {
    overflow-y: auto;
    flex: 1;
    padding: 4px 0;
}

.toc-section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 14px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-dark);
    cursor: pointer;
    border-bottom: 1px solid var(--surface-alt);
    transition: background 0.15s;
}

.toc-section-title:hover {
    background: var(--surface-glass);
}

.toc-count {
    font-size: 0.65rem;
    background: var(--accent);
    color: #fff;
    padding: 1px 6px;
    border-radius: 8px;
    font-weight: 600;
}

.toc-section-items {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.toc-section.open .toc-section-items {
    max-height: 600px;
}

.toc-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 5px 14px 5px 28px;
    font-size: 0.72rem;
    color: var(--text-muted);
    text-decoration: none;
    line-height: 1.35;
    transition: all 0.15s;
    border-left: 2px solid transparent;
}

.toc-item:hover {
    color: var(--primary);
    background: rgba(0, 59, 111, 0.04);
    border-left-color: var(--primary-light);
}

.toc-item.active {
    color: var(--primary);
    font-weight: 600;
    background: rgba(0, 59, 111, 0.06);
    border-left-color: var(--accent);
}

.toc-item-num {
    flex-shrink: 0;
    font-weight: 600;
    min-width: 18px;
    color: var(--accent);
}

/* Mobile TOC toggle button */
.toc-mobile-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    border: none;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: transform 0.2s;
}

.toc-mobile-toggle:hover {
    transform: scale(1.1);
}

@media (max-width: 991px) {
    .toc-mobile-toggle {
        display: flex;
    }
}

/* ═══════════════════════════════════════════════════
   COLUMN FILTER & COLUMN TOGGLE (Part 11D)
   ═══════════════════════════════════════════════════ */

.col-filter-row {
    background: var(--surface-alt);
    border-bottom: 1px solid #cdd5df;
}

.col-filter-row input {
    width: 100%;
    border: 1px solid #b8c4d0;
    border-radius: 4px;
    padding: 3px 6px;
    font-size: 0.72rem;
    background: #fff;
}

.col-filter-row input:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 2px rgba(0, 102, 179, 0.15);
}

.col-toggle-panel {
    position: absolute;
    top: 100%;
    right: 0;
    z-index: 1000;
    background: #fff;
    border: 1px solid #cdd5df;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 59, 111, 0.15);
    padding: 12px;
    min-width: 200px;
    max-height: 300px;
    overflow-y: auto;
    display: none;
}

.col-toggle-panel.show {
    display: block;
}

.col-toggle-panel label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    padding: 4px 0;
    cursor: pointer;
    color: var(--text-dark);
}

.col-toggle-panel label:hover {
    color: var(--primary);
}

.col-hidden {
    display: none !important;
}

/* ═══════════════════════════════════════════════════
   SEARCH HIGHLIGHT (Part 11A) — Crimson tint
   ═══════════════════════════════════════════════════ */

mark.search-hl {
    background: rgba(220, 20, 60, 0.2);
    color: inherit;
    padding: 0 2px;
    border-radius: 2px;
}

/* ═══════════════════════════════════════════════════
   SECTION HEADERS — Navy + Crimson underline
   ═══════════════════════════════════════════════════ */

.section-title {
    color: var(--primary);
    font-weight: 700;
    position: relative;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

/* ═══════════════════════════════════════════════════
   WARD SELECTOR
   ═══════════════════════════════════════════════════ */

.ward-selector {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1rem 1.5rem;
}

.ward-selector .form-select {
    border-color: var(--primary-light);
    border-radius: var(--radius-sm);
}

.ward-selector .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 59, 111, 0.25);
}

/* ═══════════════════════════════════════════════════
   TABLES
   ═══════════════════════════════════════════════════ */

.table-container {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}

/* ═══════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════ */

.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Staggered card entrance */
.card-entrance {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.card-entrance.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .stat-card .stat-value {
        font-size: 1.5rem;
    }

    .stat-icon-wrapper {
        width: 40px;
        height: 40px;
    }

    .stat-icon-inner {
        font-size: 1.1rem;
    }

    .chart-skeleton {
        height: 160px;
    }

    .skeleton-bars {
        height: 100px;
    }
}

@media (max-width: 576px) {
    .stat-card {
        padding: 0.75rem !important;
    }

    .stat-card .stat-value {
        font-size: 1.3rem;
    }

    .stat-card .stat-label {
        font-size: 0.72rem;
    }

    .stat-icon-wrapper {
        width: 36px;
        height: 36px;
    }

    .chart-skeleton {
        height: 140px;
    }
}