:root {
            --primary: #00897b;
            --primary-dark: #00695c;
            --primary-light: #e0f2f1;
            --accent: #dc3545;
            --gold: #ffd700;
            --bg: #f0f7f6;
            --text: #2d3748;
            --text-muted: #718096;
            --radius: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * { box-sizing: border-box; }

        body {
            background-color: var(--bg);
            font-family: 'Poppins', 'Segoe UI', sans-serif;
            color: var(--text);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        body > .container { flex: 1 0 auto; }

        /* ===== HEADER ===== */
        .header-rs {
            background: linear-gradient(135deg, #00a896 0%, var(--primary) 50%, var(--primary-dark) 100%);
            color: white;
            padding: 28px 0 0;
            border-bottom: 5px solid var(--gold);
            box-shadow: 0 6px 20px rgba(0,0,0,0.15);
            position: relative;
            overflow: hidden;
        }
        /* Batik motif overlay — kawung + parang inspired */
        .batik-layer {
            position: absolute;
            inset: 0;
            pointer-events: none;
            z-index: 0;
            opacity: 0.13;
        }
        /* gold accent strip bawah header (kawung row) */
        .batik-strip {
            position: absolute;
            bottom: 0; left: 0; right: 0;
            height: 28px;
            pointer-events: none;
            z-index: 0;
            opacity: 0.22;
        }
        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
            z-index: 2;
        }
        .logo-header {
            max-height: 80px;
            width: auto;
            object-fit: contain;
            filter: drop-shadow(0 2px 6px rgba(0,0,0,0.25));
            position: relative;
            z-index: 2;
        }
        .header-title-block { text-align: center; position: relative; z-index: 2; }
        .app-name {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: 1px;
            margin: 0;
            line-height: 1.1;
        }
        .rs-name {
            font-size: 1rem;
            font-weight: 600;
            opacity: 0.95;
            margin: 4px 0 0;
        }
        .room-badge {
            display: inline-block;
            background: rgba(255,255,255,0.2);
            border: 1px solid rgba(255,255,255,0.4);
            border-radius: 20px;
            padding: 3px 14px;
            font-size: 0.75rem;
            margin-top: 6px;
        }
        .header-subtitle {
            background: rgba(0,0,0,0.22);
            text-align: center;
            padding: 9px;
            font-size: 0.78rem;
            letter-spacing: 0.8px;
            margin-top: 20px;
            position: relative;
            z-index: 2;
        }

        /* ===== WELCOME ===== */
        .welcome-section {
            text-align: center;
            padding: 40px 0 8px;
        }
        .welcome-section h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .welcome-section p {
            color: var(--text-muted);
            font-size: 0.93rem;
            max-width: 480px;
            margin: 6px auto 0;
        }

        /* ===== MENU CARDS ===== */
        .card-materi {
            border: none;
            border-radius: var(--radius);
            transition: var(--transition);
            cursor: pointer;
            background: white;
            overflow: hidden;
            position: relative;
        }
        .card-materi::before {
            content: '';
            display: block;
            height: 6px;
            background: var(--card-color, var(--primary));
            transition: height 0.25s ease;
        }
        .card-materi:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 44px rgba(0,0,0,0.13) !important;
        }
        .card-materi:hover::before { height: 10px; }
        .card-materi:active { transform: scale(0.97); }
        .card-materi .card-body { padding: 28px 20px 22px; }

        .icon-circle {
            width: 78px; height: 78px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 36px;
            background: var(--card-color-light, #e0f2f1);
            transition: var(--transition);
        }
        .card-materi:hover .icon-circle {
            transform: rotate(-6deg) scale(1.12);
        }
        .card-materi h5 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 5px;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.68rem;
            font-weight: 600;
            color: var(--card-color, var(--primary));
            background: var(--card-color-light, #e0f2f1);
            border-radius: 20px;
            padding: 2px 11px;
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .card-arrow {
            position: absolute;
            bottom: 18px;
            right: 20px;
            opacity: 0;
            transform: translateX(-6px);
            transition: var(--transition);
        }
        .card-materi:hover .card-arrow {
            opacity: 1;
            transform: translateX(0);
        }

        /* ===== DETAIL VIEW ===== */
        .detail-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .btn-back {
            border-radius: 50px;
            font-weight: 600;
            padding: 10px 22px;
            transition: var(--transition);
            border: 2px solid var(--primary);
            color: var(--primary);
            background: white;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            font-size: 0.9rem;
        }
        .btn-back:hover {
            background: var(--primary);
            color: white;
            transform: translateX(-3px);
        }
        .breadcrumb-detail {
            font-size: 0.83rem;
            color: var(--text-muted);
        }
        .breadcrumb-detail span { color: var(--primary); font-weight: 600; }

        .detail-card {
            border: none;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 10px 44px rgba(0,0,0,0.09);
        }
        .detail-topic-banner {
            color: white;
            padding: 18px 22px;
        }
        .detail-topic-banner h2 {
            font-weight: 800;
            margin: 0;
            font-size: 1.15rem;
        }
        .detail-body { padding: 20px 22px; }

        .img-detail {
            width: 100%;
            border-radius: 14px;
            margin-bottom: 12px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s;
            display: block;
        }
        .img-detail:hover { transform: scale(1.01); }

        /* ===== LEAFLET SLIDER ===== */
        .leaflet-slider {
            position: relative;
            overflow: hidden;
            border-radius: 14px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.12);
            margin-bottom: 28px;
            background: #1a1a1a;
            user-select: none;
        }
        .leaflet-track {
            display: flex;
            transition: transform 0.42s cubic-bezier(0.4, 0, 0.2, 1);
            will-change: transform;
        }
        .leaflet-slide {
            min-width: 100%;
        }
        .leaflet-slide img {
            width: 100%;
            display: block;
            max-height: 500px;
            object-fit: contain;
            background: #f5f5f5;
        }
        .slider-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(0,0,0,0.42);
            color: white;
            border: 2px solid rgba(255,255,255,0.25);
            width: 42px; height: 42px;
            border-radius: 50%;
            font-size: 1.4rem;
            cursor: pointer;
            transition: var(--transition);
            z-index: 10;
            display: flex; align-items: center; justify-content: center;
            line-height: 1;
            backdrop-filter: blur(4px);
        }
        .slider-btn:hover { background: rgba(0,0,0,0.72); border-color: white; }
        .slider-prev { left: 12px; }
        .slider-next { right: 12px; }
        .slider-dots {
            position: absolute;
            bottom: 12px;
            left: 50%;
            transform: translateX(-50%);
            display: flex; gap: 6px; align-items: center;
        }
        .slider-dot {
            width: 8px; height: 8px;
            border-radius: 4px;
            background: rgba(255,255,255,0.45);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            padding: 0;
        }
        .slider-dot.active {
            background: white;
            width: 24px;
        }
        .slider-counter {
            position: absolute;
            top: 12px;
            right: 14px;
            background: rgba(0,0,0,0.45);
            color: white;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 11px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }
        .slider-label {
            position: absolute;
            bottom: 12px;
            left: 14px;
            background: rgba(0,0,0,0.45);
            color: white;
            font-size: 0.7rem;
            padding: 3px 10px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }

        .isi-edukasi { line-height: 1.7; font-size: 0.875rem; }
        .isi-edukasi h5, .isi-edukasi h6 { font-size: 0.9rem; }
        .isi-edukasi p, .isi-edukasi li { font-size: 0.875rem; margin-bottom: 4px; }

        .quick-facts {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
            gap: 12px;
            margin: 20px 0;
        }
        .quick-fact-item {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: 10px;
            padding: 10px 8px;
            text-align: center;
            transition: var(--transition);
            font-size: 1.3rem;
        }
        .quick-fact-item:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .quick-fact-item small { display: block; font-size: 0.67rem; font-weight: 600; margin-top: 4px; }

        /* Pillar cards */
        .pillar-card {
            padding: 10px 12px;
            border-radius: 10px;
            border: 1px solid #e2e8f0;
            border-left-width: 4px !important;
            transition: var(--transition);
        }
        .pillar-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.07);
        }
        .pillar-card h6 { font-size: 0.8rem; margin-bottom: 4px; }
        .pillar-card p { font-size: 0.77rem; margin: 0; color: var(--text-muted); }

        /* Urgent Alert */
        .alert-urgent {
            border: none;
            border-left: 6px solid var(--accent);
            background: #fff5f5;
            border-radius: 12px;
            animation: pulse-red 2.5s infinite;
        }
        @keyframes pulse-red {
            0%, 100% { box-shadow: 0 0 0 0 rgba(220,53,69,0.3); }
            50% { box-shadow: 0 0 0 12px rgba(220,53,69,0); }
        }

        /* Detail footer */
        .footer-detail {
            background: #f8fafc;
            border-top: 1px solid #e2e8f0;
            padding: 14px 22px;
            text-align: center;
        }
        .footer-detail p { margin: 0; color: #a0aec0; font-size: 0.77rem; }
        .footer-detail h6 { color: #4a5568; font-weight: 700; margin: 3px 0; font-size: 0.83rem; }

        /* ===== SITE FOOTER ===== */
        .site-footer {
            background: linear-gradient(135deg, var(--primary-dark), #004d40);
            color: rgba(255,255,255,0.72);
            text-align: center;
            padding: 26px;
            font-size: 0.83rem;
            flex-shrink: 0;
        }
        .site-footer strong { color: white; }

        /* ===== WELCOME OVERLAY ===== */
        #welcome-overlay {
            position: fixed;
            inset: 0;
            z-index: 10000;
            background: linear-gradient(160deg, #e0f7f4 0%, #f0fdf9 55%, #e8f5e9 100%);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            overflow-y: auto;
            transition: opacity 0.5s ease, visibility 0.5s ease;
        }
        .welcome-body {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            justify-content: center;
            min-height: 100%;
            width: 100%;
            padding: 60px 24px 36px;
            box-sizing: border-box;
        }
        #welcome-overlay.hiding {
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
        }
        .welcome-logos {
            display: flex;
            gap: 18px;
            align-items: center;
            justify-content: center;
            margin-bottom: 22px;
        }
        .welcome-logos img {
            height: 54px;
            width: auto;
            object-fit: contain;
            filter: drop-shadow(0 2px 8px rgba(0,0,0,0.12));
        }
        .welcome-logos .logo-divider {
            width: 1px;
            height: 40px;
            background: rgba(0,137,123,0.25);
        }
        .welcome-badge {
            display: inline-block;
            background: var(--primary);
            color: white;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.1em;
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 14px;
        }
        #welcome-overlay h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin: 0 0 4px;
            line-height: 1.1;
        }
        .welcome-sub {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.6;
        }
        .welcome-topics { margin-bottom: 24px; }
        .welcome-topics-label {
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .welcome-topic-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .topic-tag {
            background: rgba(0,137,123,0.07);
            border: 1px solid rgba(0,137,123,0.22);
            border-radius: 50px;
            padding: 5px 13px;
            font-size: 0.76rem;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: default;
            pointer-events: none;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .welcome-caps {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        .welcome-cap-item {
            font-size: 0.72rem;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 500;
        }
        .welcome-cap-item i { color: var(--primary); font-size: 0.78rem; }
        .btn-mulai {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            border-radius: 50px;
            padding: 14px 44px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            box-shadow: 0 6px 22px rgba(0,137,123,0.38);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }
        .btn-mulai:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0,137,123,0.48);
        }
        .welcome-skip-label {
            display: flex;
            align-items: center;
            gap: 7px;
            font-size: 0.78rem;
            color: var(--text-muted);
            cursor: pointer;
            user-select: none;
        }
        .welcome-skip-label input[type=checkbox] {
            width: 15px;
            height: 15px;
            accent-color: var(--primary);
            cursor: pointer;
        }
        .welcome-rs-name {
            font-size: 0.72rem;
            color: var(--text-muted);
            margin-top: 18px;
            opacity: 0.7;
        }

        /* ===== PAGE LOADER ===== */
        #page-loader {
            position: fixed;
            inset: 0;
            background: linear-gradient(135deg, var(--primary-dark), #004d40);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            transition: opacity 0.4s ease, visibility 0.4s ease;
        }
        #page-loader.hiding {
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
        }
        #page-loader video {
            width: min(280px, 70vw);
            height: auto;
            border-radius: 16px;
            filter: drop-shadow(0 8px 24px rgba(0,0,0,0.4));
        }
        #page-loader .loader-text {
            margin-top: 18px;
            color: rgba(255,255,255,0.85);
            font-size: 0.88rem;
            font-weight: 500;
            letter-spacing: 0.04em;
        }

        /* ===== SCROLL TO TOP ===== */
        #btn-scroll-top {
            position: fixed;
            bottom: 26px;
            right: 26px;
            width: 46px; height: 46px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 50%;
            box-shadow: 0 4px 16px rgba(0,137,123,0.45);
            cursor: pointer;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: var(--transition);
            z-index: 999;
        }
        #btn-scroll-top:hover { background: var(--primary-dark); transform: translateY(-3px); }
        #btn-scroll-top.show { display: flex; }

        /* ===== ANIMATIONS ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(22px); }
            to   { opacity: 1; transform: translateY(0); }
        }
        .fade-in-up { animation: fadeInUp 0.4s ease both; }
        .fade-in-up:nth-child(1) { animation-delay: 0.05s; }
        .fade-in-up:nth-child(2) { animation-delay: 0.13s; }
        .fade-in-up:nth-child(3) { animation-delay: 0.21s; }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 768px) {
            .app-name { font-size: 1.55rem; }
            .logo-header { max-height: 62px; }
            .detail-topic-banner { padding: 22px 24px; }
            .detail-body { padding: 24px 20px; }
            .footer-detail { padding: 20px 24px; }
            .detail-topic-banner h2 { font-size: 1.2rem; }
            .welcome-section { padding: 28px 0 4px; }
        }
        @media (max-width: 400px) {
            .app-name { font-size: 1.3rem; }
            .logo-header { max-height: 48px; }
        }
        @media (max-width: 480px), (max-height: 700px) {
            .welcome-body {
                padding: max(env(safe-area-inset-top, 64px), 64px) 18px max(env(safe-area-inset-bottom, 24px), 24px);
            }
            .welcome-logos { margin-bottom: 12px; }
            .welcome-logos img { height: 40px; }
            .welcome-badge { margin-bottom: 8px; font-size: 0.62rem; padding: 3px 10px; }
            #welcome-overlay h1 { font-size: 1.6rem; }
            .welcome-sub { font-size: 0.76rem; margin-bottom: 12px; }
            .welcome-topics { margin-bottom: 14px; }
            .topic-tag { font-size: 0.7rem; padding: 4px 10px; }
            .btn-mulai { padding: 11px 30px; font-size: 0.9rem; margin-bottom: 12px; }
            .welcome-rs-name { margin-top: 10px; }
        }

        /* ===== ACTION BUTTONS (Share + QR) ===== */
        .action-bar {
            display: flex;
            gap: 10px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .btn-action {
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            padding: 9px 20px;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-share { background: linear-gradient(135deg, #0288d1, #01579b); color: white; }
        .btn-share:hover { opacity: 0.88; transform: translateY(-2px); }
        .btn-qr { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: white; }
        .btn-qr:hover { opacity: 0.88; transform: translateY(-2px); }

        /* ===== QR MODAL ===== */
        .qr-modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.6);
            z-index: 9999;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(3px);
        }
        .qr-modal-overlay.show { display: flex; }
        .qr-modal-box {
            background: white;
            border-radius: 24px;
            padding: 32px 28px;
            max-width: 320px;
            width: 90%;
            text-align: center;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            animation: fadeInUp 0.3s ease;
        }
        .qr-modal-box h5 { font-weight: 700; font-size: 1rem; margin-bottom: 4px; }
        .qr-modal-box .qr-desc { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 16px; }
        #qr-canvas {
            display: inline-block;
            border: 4px solid var(--primary-light);
            border-radius: 12px;
            padding: 8px;
            margin-bottom: 12px;
        }
        #qr-canvas canvas, #qr-canvas img { border-radius: 6px; display: block; }
        .qr-url {
            font-size: 0.68rem;
            color: var(--primary-dark);
            word-break: break-all;
            background: var(--primary-light);
            border-radius: 8px;
            padding: 6px 10px;
            margin-bottom: 14px;
        }
        .btn-close-qr {
            background: #f1f5f9;
            border: none;
            border-radius: 50px;
            padding: 8px 24px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            color: var(--text);
        }
        .btn-close-qr:hover { background: #e2e8f0; }

        /* ===== STATS MODAL ===== */
        #stats-modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.6);
            z-index: 9999;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(3px);
        }
        #stats-modal-overlay.show { display: flex; }
        #stats-modal {
            background: white;
            border-radius: 24px;
            padding: 28px 24px 24px;
            max-width: 380px;
            width: 92%;
            box-shadow: 0 20px 60px rgba(0,0,0,0.28);
            animation: fadeInUp 0.3s ease;
        }
        .stats-modal-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        .stats-modal-header h5 {
            font-weight: 800;
            font-size: 1rem;
            margin: 0;
            color: var(--primary-dark);
        }
        .btn-stats-close {
            background: #f1f5f9;
            border: none;
            border-radius: 50%;
            width: 32px; height: 32px;
            font-size: 1rem;
            cursor: pointer;
            display: flex; align-items: center; justify-content: center;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .btn-stats-close:hover { background: #e2e8f0; color: var(--text); }
        .stat-total-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border-radius: 16px;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 18px;
        }
        .stat-total-icon { font-size: 2rem; line-height: 1; }
        .stat-total-num {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1;
        }
        .stat-total-label { font-size: 0.78rem; opacity: 0.9; margin-top: 2px; }
        .stats-topics-title {
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.07em;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .stat-row {
            margin-bottom: 12px;
        }
        .stat-row-header {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin-bottom: 4px;
        }
        .stat-row-name {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .stat-row-count {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .stat-bar-track {
            background: #f1f5f9;
            border-radius: 999px;
            height: 8px;
            overflow: hidden;
        }
        .stat-bar-fill {
            height: 100%;
            border-radius: 999px;
            transition: width 0.7s cubic-bezier(0.4,0,0.2,1);
            width: 0%;
        }
        .stats-note {
            font-size: 0.68rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 16px;
        }
        .stats-skeleton {
            background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
            background-size: 200% 100%;
            animation: skeleton-shimmer 1.2s infinite;
            border-radius: 8px;
            height: 14px;
        }
        @keyframes skeleton-shimmer {
            0%   { background-position: 200% 0; }
            100% { background-position: -200% 0; }
        }
        /* Footer stats button */
        .btn-stats-footer {
            background: none;
            border: 1px solid rgba(255,255,255,0.22);
            border-radius: 50px;
            color: rgba(255,255,255,0.7);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            cursor: pointer;
            margin-top: 10px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-stats-footer:hover { background: rgba(255,255,255,0.12); color: white; border-color: rgba(255,255,255,0.5); }

        /* ===== TOAST ===== */
        #toast-notif {
            position: fixed;
            bottom: 80px;
            left: 50%;
            transform: translateX(-50%) translateY(20px);
            background: #1a202c;
            color: white;
            padding: 10px 22px;
            border-radius: 50px;
            font-size: 0.83rem;
            opacity: 0;
            transition: all 0.3s ease;
            z-index: 9998;
            white-space: nowrap;
            pointer-events: none;
        }
        #toast-notif.show { opacity: 1; transform: translateX(-50%) translateY(0); }

        /* ===== PWA INSTALL BANNER ===== */
        #pwa-banner {
            display: none;
            position: fixed;
            bottom: 24px;
            right: 20px;
            width: min(320px, calc(100vw - 32px));
            background: white;
            border-radius: 16px;
            border-left: 4px solid var(--primary);
            padding: 14px 16px 14px 14px;
            z-index: 9997;
            box-shadow: 0 8px 32px rgba(0,0,0,0.16);
            flex-direction: column;
            gap: 10px;
            animation: slideInRight 0.3s ease;
        }
        @keyframes slideInRight {
            from { opacity: 0; transform: translateX(60px); }
            to   { opacity: 1; transform: translateX(0); }
        }
        #pwa-banner.show { display: flex; }
        .pwa-banner-top {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .pwa-banner-icon { font-size: 1.6rem; flex-shrink: 0; line-height: 1.2; }
        #pwa-banner .pwa-text { margin: 0; font-size: 0.8rem; flex: 1; line-height: 1.4; }
        #pwa-banner .pwa-text strong { color: var(--primary-dark); display: block; font-size: 0.83rem; margin-bottom: 2px; }
        .pwa-banner-actions {
            display: flex;
            gap: 8px;
            justify-content: flex-end;
        }
        .btn-pwa-install {
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 6px 16px;
            font-size: 0.78rem;
            font-weight: 700;
            cursor: pointer;
            white-space: nowrap;
            transition: var(--transition);
        }
        .btn-pwa-install:hover { background: var(--primary-dark); }
        .btn-pwa-dismiss {
            background: #f1f5f9;
            border: none;
            border-radius: 50px;
            padding: 6px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            cursor: pointer;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .btn-pwa-dismiss:hover { background: #e2e8f0; }

        /* ===== LANGUAGE SWITCHER ===== */
        .lang-dropdown {
            position: relative;
            display: inline-flex;
        }
        .lang-toggle-btn {
            background: rgba(255,255,255,0.18);
            color: white;
            border: 1.5px solid rgba(255,255,255,0.45);
            border-radius: 50px;
            padding: 5px 12px 5px 10px;
            font-size: 0.72rem;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 5px;
            letter-spacing: 0.05em;
            transition: var(--transition);
            backdrop-filter: blur(4px);
            white-space: nowrap;
        }
        .lang-toggle-btn:hover, .lang-toggle-btn[aria-expanded="true"] {
            background: rgba(255,255,255,0.95);
            color: var(--primary-dark);
            border-color: white;
        }
        .lang-toggle-btn i { font-size: 0.82rem; }
        .lang-menu {
            display: none;
            position: fixed;
            background: white;
            border-radius: 10px;
            box-shadow: 0 8px 28px rgba(0,0,0,0.18);
            overflow: hidden;
            min-width: 120px;
            z-index: 99999;
            animation: fadeInDown 0.18s ease;
        }
        @keyframes fadeInDown {
            from { opacity: 0; transform: translateY(-6px); }
            to   { opacity: 1; transform: translateY(0); }
        }
        .lang-menu.open { display: block; }
        .lang-option {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 9px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: background 0.15s;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }
        .lang-option:hover { background: var(--primary-light); }
        .lang-option.active { color: var(--primary-dark); background: #e0f2f1; }
        .lang-option .lang-flag { font-size: 1rem; }
        /* Welcome page variant — dark on light bg */
        #lang-switcher-welcome .lang-toggle-btn {
            background: rgba(0,137,123,0.1);
            color: var(--primary-dark);
            border-color: rgba(0,137,123,0.35);
        }
        #lang-switcher-welcome .lang-toggle-btn:hover,
        #lang-switcher-welcome .lang-toggle-btn[aria-expanded="true"] {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }
        /* Position in header */
        #lang-switcher {
            position: absolute;
            top: 14px;
            right: 18px;
            z-index: 10;
        }
        /* Position in welcome overlay */
        #lang-switcher-welcome {
            position: absolute;
            top: 16px;
            right: 16px;
        }
        /* On mobile: lang switcher flows below logo row instead of overlapping */
        @media (max-width: 600px) {
            #lang-switcher {
                position: static;
                display: flex;
                justify-content: flex-end;
                margin-top: 6px;
                margin-bottom: -2px;
                z-index: 20;
                pointer-events: auto;
                position: relative;
            }
            #lang-label-header { display: none; }
        }

        /* ===== SEARCH BOX ===== */
        .search-wrapper {
            position: relative;
            max-width: 480px;
            margin: 0 auto 28px;
        }
        .search-wrapper .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }
        #search-input {
            width: 100%;
            padding: 12px 16px 12px 42px;
            border-radius: 50px;
            border: 1.5px solid #e2e8f0;
            font-family: 'Poppins', sans-serif;
            font-size: 0.88rem;
            background: white;
            color: var(--text);
            outline: none;
            transition: var(--transition);
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        #search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0,137,123,0.12);
        }
        #search-clear {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            cursor: pointer;
            color: var(--text-muted);
            font-size: 0.85rem;
            display: none;
            padding: 4px;
        }
        #search-clear.show { display: block; }
        #search-no-result {
            display: none;
            text-align: center;
            padding: 18px 0 8px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        #search-no-result.show { display: block; }

        /* ===== KAIA CHAT ===== */
        #kaia-fab {
            position: fixed;
            bottom: 26px;
            left: 26px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            border-radius: 56px;
            padding: 12px 20px;
            font-size: 0.85rem;
            font-weight: 700;
            cursor: pointer;
            box-shadow: 0 6px 24px rgba(0,137,123,0.42);
            transition: var(--transition);
            z-index: 9998;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        #kaia-fab:hover {
            transform: translateY(-2px);
            box-shadow: 0 9px 28px rgba(0,137,123,0.52);
        }
        #kaia-fab .kaia-fab-icon { font-size: 1.1rem; }

        #kaia-modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.45);
            z-index: 9999;
            align-items: flex-end;
            justify-content: center;
            backdrop-filter: blur(3px);
        }
        #kaia-modal-overlay.show { display: flex; }
        @media (min-width: 600px) {
            #kaia-modal-overlay { align-items: center; }
        }

        #kaia-panel {
            background: white;
            border-radius: 24px 24px 0 0;
            width: 100%;
            max-width: 480px;
            height: 88svh;
            max-height: 640px;
            display: flex;
            flex-direction: column;
            box-shadow: 0 -8px 40px rgba(0,0,0,0.18);
            animation: slideUpKaia 0.3s cubic-bezier(0.4,0,0.2,1);
            overflow: hidden;
        }
        @media (min-width: 600px) {
            #kaia-panel {
                border-radius: 24px;
                height: 88svh;
            }
        }
        @keyframes slideUpKaia {
            from { transform: translateY(80px); opacity: 0.4; }
            to   { transform: translateY(0);    opacity: 1;   }
        }

        .kaia-header {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            padding: 16px 18px 12px;
            flex-shrink: 0;
        }
        .kaia-header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .kaia-header-info { display: flex; align-items: center; gap: 10px; }
        .kaia-avatar {
            width: 36px; height: 36px;
            background: rgba(255,255,255,0.2);
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.2rem;
        }
        .kaia-name { font-weight: 700; font-size: 0.92rem; line-height: 1.2; }
        .kaia-status { font-size: 0.7rem; opacity: 0.85; }
        .btn-kaia-close {
            background: rgba(255,255,255,0.18);
            border: none;
            border-radius: 50%;
            width: 30px; height: 30px;
            color: white;
            font-size: 1rem;
            cursor: pointer;
            display: flex; align-items: center; justify-content: center;
            transition: var(--transition);
        }
        .btn-kaia-close:hover { background: rgba(255,255,255,0.3); }

        .kaia-disclaimer-bar {
            background: #fffbeb;
            border-bottom: 1px solid #fde68a;
            padding: 7px 14px;
            font-size: 0.68rem;
            color: #92400e;
            flex-shrink: 0;
            line-height: 1.4;
        }

        #kaia-messages {
            flex: 1;
            overflow-y: auto;
            padding: 14px 14px 8px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            scroll-behavior: smooth;
        }

        .kaia-msg {
            display: flex;
            gap: 8px;
            max-width: 92%;
        }
        .kaia-msg.user { align-self: flex-end; flex-direction: row-reverse; }
        .kaia-msg.bot  { align-self: flex-start; }

        .kaia-bubble {
            padding: 10px 13px;
            border-radius: 18px;
            font-size: 0.82rem;
            line-height: 1.55;
            white-space: pre-wrap;
            word-break: break-word;
        }
        .kaia-msg.user .kaia-bubble {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border-bottom-right-radius: 5px;
        }
        .kaia-msg.bot .kaia-bubble {
            background: #f1f5f9;
            color: var(--text);
            border-bottom-left-radius: 5px;
            white-space: normal;
        }
        .kaia-msg.bot .kaia-bubble h1,
        .kaia-msg.bot .kaia-bubble h2,
        .kaia-msg.bot .kaia-bubble h3,
        .kaia-msg.bot .kaia-bubble h4,
        .kaia-msg.bot .kaia-bubble h5,
        .kaia-msg.bot .kaia-bubble h6 {
            margin: 0.4rem 0 0.35rem;
            line-height: 1.3;
            font-weight: 700;
        }
        .kaia-msg.bot .kaia-bubble p { margin: 0.32rem 0; }
        .kaia-msg.bot .kaia-bubble ul,
        .kaia-msg.bot .kaia-bubble ol {
            margin: 0.35rem 0 0.35rem 1.1rem;
            padding: 0;
        }
        .kaia-msg.bot .kaia-bubble li { margin: 0.18rem 0; }
        .kaia-msg.bot .kaia-bubble blockquote {
            margin: 0.45rem 0;
            padding: 0.35rem 0.6rem;
            border-left: 3px solid var(--primary);
            background: #e8f5f3;
            border-radius: 6px;
        }
        .kaia-msg.bot .kaia-bubble hr {
            border: 0;
            border-top: 1px solid #cbd5e1;
            margin: 0.45rem 0;
        }
        .kaia-msg.bot .kaia-bubble code {
            background: #e2e8f0;
            color: #1f2937;
            padding: 0.06rem 0.32rem;
            border-radius: 5px;
            font-size: 0.76rem;
            font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
        }
        .kaia-msg.bot .kaia-bubble pre {
            background: #0f172a;
            color: #e2e8f0;
            padding: 0.55rem 0.62rem;
            border-radius: 8px;
            overflow-x: auto;
            margin: 0.45rem 0;
            font-size: 0.75rem;
            line-height: 1.45;
        }
        .kaia-msg.bot .kaia-bubble pre code {
            background: transparent;
            color: inherit;
            padding: 0;
            font-size: inherit;
        }
        .kaia-msg.bot .kaia-bubble table {
            width: 100%;
            border-collapse: collapse;
            margin: 0.45rem 0;
            font-size: 0.75rem;
            display: block;
            overflow-x: auto;
        }
        .kaia-msg.bot .kaia-bubble th,
        .kaia-msg.bot .kaia-bubble td {
            border: 1px solid #cbd5e1;
            padding: 0.32rem 0.4rem;
            text-align: left;
            vertical-align: top;
        }
        .kaia-msg.bot .kaia-bubble th {
            background: #e2e8f0;
            font-weight: 600;
        }
        .kaia-msg.bot .kaia-bubble a {
            color: var(--primary-dark);
            text-decoration: underline;
            word-break: break-word;
        }
        .kaia-msg.bot .kaia-bubble img {
            max-width: 100%;
            border-radius: 8px;
        }

        .kaia-msg-avatar {
            width: 28px; height: 28px;
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
            align-self: flex-end;
        }
        .kaia-msg.bot .kaia-msg-avatar  { background: var(--primary-light); }
        .kaia-msg.user .kaia-msg-avatar { background: #e2e8f0; }

        .kaia-typing {
            display: flex; gap: 5px; align-items: center;
            padding: 6px 4px;
        }
        .kaia-typing span {
            width: 7px; height: 7px;
            border-radius: 50%;
            background: var(--text-muted);
            animation: kaiaTyping 1.2s infinite;
        }
        .kaia-typing span:nth-child(2) { animation-delay: 0.2s; }
        .kaia-typing span:nth-child(3) { animation-delay: 0.4s; }
        @keyframes kaiaTyping {
            0%, 80%, 100% { transform: scale(0.85); opacity: 0.4; }
            40%            { transform: scale(1.15); opacity: 1;   }
        }

        .kaia-input-row {
            display: flex;
            gap: 8px;
            align-items: flex-end;
            padding: 10px 12px 14px;
            border-top: 1px solid #f1f5f9;
            flex-shrink: 0;
        }
        #kaia-input {
            flex: 1;
            border: 1.5px solid #e2e8f0;
            border-radius: 22px;
            padding: 9px 14px;
            font-family: 'Poppins', sans-serif;
            font-size: 0.82rem;
            resize: none;
            outline: none;
            max-height: 90px;
            overflow-y: auto;
            line-height: 1.45;
            transition: var(--transition);
            color: var(--text);
        }
        #kaia-input::placeholder { color: var(--text-muted); }
        #kaia-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,137,123,0.1); }

        #kaia-send-btn {
            width: 38px; height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: white;
            border: none;
            cursor: pointer;
            font-size: 0.9rem;
            display: flex; align-items: center; justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
        }
        #kaia-send-btn:hover { background: var(--primary-dark); }
        #kaia-send-btn:disabled { background: #cbd5e0; cursor: not-allowed; }

        /* ===== SEARCH SNIPPET ===== */
        .search-snippet {
            display: none;
            margin: 8px 12px 12px;
            background: #f0fdf8;
            border: 1px solid #b2dfdb;
            border-radius: 10px;
            padding: 8px 11px;
            font-size: 0.74rem;
            color: var(--text-muted);
            line-height: 1.55;
        }
        .search-snippet.show { display: block; }
        .search-snippet mark {
            background: #ffd54f;
            color: #1a1a1a;
            border-radius: 3px;
            padding: 1px 3px;
            font-weight: 700;
        }

        /* No-result KAIA CTA block */
        #search-no-result .ask-kaia-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            border-radius: 50px;
            padding: 8px 18px;
            font-size: 0.8rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 3px 12px rgba(0,137,123,0.3);
        }
        #search-no-result .ask-kaia-cta:hover { opacity: 0.88; transform: translateY(-1px); }

        /* KAIA FAB lifted state (when PWA banner visible) */
        #kaia-fab.lifted {
            bottom: calc(26px + 96px);
        }