:root {
            --primary-dark: #090d16;     /* Negro profundo clínico */
            --slate-gray: #1e293b;      /* Gris pizarra corporativo */
            --accent-gold: #c5a059;     /* Dorado elegante satinado */
            --accent-gold-light: #f4efe2;
            --bg-light: #f8fafc;        /* Fondo claro ultra limpio */
            --white: #ffffff;
            --text-main: #334155;       /* Texto principal legible */
            --text-muted: #64748b;     /* Texto secundario */
            --border-color: #e2e8f0;    /* Bordes sutiles */
            
            /* Colores de tratamientos extraídos de la referencia de los viales */
            --color-hair: #0ea5e9;
            --color-antiage: #d97706;
            --color-joint: #2563eb;
            --color-regen: #10b981;
            --color-recovery: #7c3aed;
            --color-metabolic: #0284c7;
            --color-neuro: #6366f1;
            --color-immuno: #059669;
            --color-kidney: #0d9488;
            --color-spine: #dc2626;
            --color-uro: #b45309;
            --color-ortho: #ea580c;

            --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            --shadow-premium: 0 20px 40px -15px rgba(0,0,0,0.05);
            --shadow-hover: 0 30px 60px -10px rgba(9,13,22,0.08);
            --transition-base: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        }

        /* Reset y Estilos Globales */
        * {
            box-sizing: border-box;
        }
        body {
            font-family: 'Montserrat', sans-serif;
            color: var(--text-main);
            background-color: var(--white);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        /* Scrollbar Premium */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }

        /* Tipografía Avanzada */
        h1, h2, h3, h4, h5, h6 {
            font-weight: 600;
            color: var(--primary-dark);
            letter-spacing: -0.02em;
        }
        .text-gold { color: var(--accent-gold); }
        .bg-premium-dark { background-color: var(--primary-dark); }
        
        /* Utilidades de Espacio Alternado (Aire Estilo Apple) */
        section {
            padding: 100px 0;
            position: relative;
        }
        .bg-light-section {
            background-color: var(--bg-light);
        }

        /* Navbar Estilo Glassmorphism Inteligente */
        .navbar {
            transition: var(--transition-base);
            padding: 24px 0;
            background: transparent;
            border-bottom: 1px solid transparent;
        }
        .navbar.scrolled {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 14px 0;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border-color);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.4rem;
            letter-spacing: -0.03em;
            color: var(--primary-dark) !important;
            display: flex;
            align-items: center;
        }
        .navbar-brand .hexagon-icon {
            color: var(--primary-dark);
            margin-right: 10px;
            font-size: 1.6rem;
            transition: var(--transition-base);
        }
        .navbar-brand:hover .hexagon-icon {
            transform: rotate(30px) scale(1.05);
            color: var(--accent-gold);
        }
        .navbar-brand span {
            font-weight: 300;
            color: var(--text-muted);
        }
        .nav-link {
            font-weight: 500;
            font-size: 0.88rem;
            color: var(--slate-gray) !important;
            padding: 6px 16px !important;
            transition: var(--transition-base);
            position: relative;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 16px;
            background-color: var(--accent-gold);
            transition: var(--transition-base);
        }
        .nav-link:hover::after, .nav-link.active::after {
            width: calc(100% - 32px);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--accent-gold) !important;
        }

        /* Botones de Alta Gama */
        .btn-premium-primary {
            background-color: var(--primary-dark);
            color: var(--white);
            border: 1px solid var(--primary-dark);
            padding: 14px 34px;
            font-weight: 500;
            font-size: 0.9rem;
            border-radius: 50px;
            transition: var(--transition-base);
            box-shadow: 0 4px 12px rgba(9,13,22,0.15);
        }
        .btn-premium-primary:hover {
            background-color: var(--white);
            color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(9,13,22,0.2);
        }
        .btn-premium-secondary {
            background-color: transparent;
            color: var(--slate-gray);
            border: 1px solid var(--border-color);
            padding: 14px 34px;
            font-weight: 500;
            font-size: 0.9rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }
        .btn-premium-secondary:hover {
            background-color: var(--bg-light);
            border-color: var(--slate-gray);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-premium-gold {
            background-color: transparent;
            color: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            padding: 14px 34px;
            font-weight: 500;
            font-size: 0.9rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }
        .btn-premium-gold:hover {
            background-color: var(--accent-gold);
            color: var(--white);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(197,160,89,0.3);
        }

        /* Vistas por ID para simular Multi-página fluida */
        .page-view {
            display: none;
        }
        .page-view.active-view {
            display: block;
            animation: fadeInView 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
        }
        @keyframes fadeInView {
            from { opacity: 0; transform: translateY(15px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Hero Completo de Entrada (Full Screen Parallax Feel) */
        .hero-full {
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: radial-gradient(circle at 80% 20%, rgba(197,160,89,0.04) 0%, rgba(255,255,255,0) 60%), 
                        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
            padding-top: 100px;
        }
        .hero-tag {
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.15em;
            color: var(--accent-gold);
            margin-bottom: 20px;
            display: inline-block;
        }
        .hero-title {
            font-size: 3.8rem;
            font-weight: 700;
            line-height: 1.15;
            color: var(--primary-dark);
            margin-bottom: 24px;
        }
        @media (max-width: 991px) {
            .hero-title { font-size: 2.6rem; }
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 40px;
            max-width: 580px;
        }
        
        /* Elemento Abstracto de Laboratorio en Hero (Estilo Apple) */
        .hero-display {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-display-backdrop {
            position: absolute;
            width: 140%;
            height: 140%;
            background: radial-gradient(circle, rgba(197,160,89,0.1) 0%, rgba(255,255,255,0) 70%);
            z-index: 1;
            animation: pulseGlow 8s ease-in-out infinite alternate;
        }
        .hero-vial-abstract {
            z-index: 2;
            box-shadow: var(--shadow-hover);
            border-radius: 30px;
            transition: var(--transition-base);
            max-height: 520px;
            object-fit: cover;
        }
        .hero-vial-abstract:hover {
            transform: scale(1.02) translateY(-10px);
        }
        @keyframes pulseGlow {
            from { transform: scale(0.95); opacity: 0.6; }
            to { transform: scale(1.05); opacity: 1; }
        }

        /* Sección de Métricas Estadísticas */
        .stat-box {
            padding: 30px;
            text-align: center;
            border-right: 1px solid var(--border-color);
        }
        .stat-box:last-child {
            border-right: none;
        }
        @media (max-width: 767px) {
            .stat-box { border-right: none; border-bottom: 1px solid var(--border-color); }
            .stat-box:last-child { border-bottom: none; }
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 5px;
            font-variant-numeric: tabular-nums;
        }
        .stat-label {
            font-size: 0.85rem;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--text-muted);
        }

        /* Tarjetas de Tratamientos Premium (Grid de 12 Unidades) */
        .treatment-grid-card {
            background: var(--white);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid rgba(0,0,0,0.03);
            box-shadow: var(--shadow-premium);
            transition: var(--transition-base);
            height: 100%;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .treatment-grid-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 4px;
            background: var(--accent-color, var(--accent-gold));
            opacity: 0.8;
        }
        .treatment-grid-card:hover {
            transform: translateY(-12px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(197,160,89,0.15);
        }
        .treatment-badge-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background-color: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-color, var(--accent-gold));
            margin-bottom: 24px;
            transition: var(--transition-base);
        }
        .treatment-grid-card:hover .treatment-badge-icon {
            background-color: var(--accent-color, var(--accent-gold));
            color: var(--white);
            transform: scale(1.05);
        }
        .treatment-card-title {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary-dark);
        }
        .treatment-card-category {
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .treatment-card-text {
            font-size: 0.92rem;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .treatment-card-action {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary-dark);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition-base);
            margin-top: auto;
        }
        .treatment-card-action i {
            transition: var(--transition-base);
        }
        .treatment-grid-card:hover .treatment-card-action {
            color: var(--accent-gold);
        }
        .treatment-grid-card:hover .treatment-card-action i {
            transform: translateX(5px);
        }

        /* ===== Escenario de Vial Flotante (Producto Premium) ===== */
        .vial-stage {
            position: relative;
            height: 190px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 22px;
            overflow: visible;
        }
        .vial-glow {
            position: absolute;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            top: 55%;
            left: 50%;
            transform: translate(-50%, -50%);
            filter: blur(28px);
            opacity: 0.22;
            transition: var(--transition-base);
        }
        .vial-floating-img {
            position: relative;
            z-index: 2;
            height: 180px;
            width: auto;
            object-fit: contain;
            animation: floatVial 4.2s ease-in-out infinite;
            transition: var(--transition-base);
            filter: drop-shadow(0 22px 16px rgba(9,13,22,0.16));
            will-change: transform;
        }
        .treatment-grid-card:hover .vial-floating-img {
            transform: translateY(-14px) scale(1.06) rotate(-2deg);
            filter: drop-shadow(0 32px 22px rgba(9,13,22,0.22));
        }
        .treatment-grid-card:hover .vial-glow {
            opacity: 0.45;
            filter: blur(34px);
        }
        @keyframes floatVial {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-13px); }
        }
        /* Tarjeta con imagen: ajustes de layout */
        .treatment-grid-card.has-vial {
            padding-top: 34px;
        }
        .treatment-grid-card.has-vial .treatment-card-category {
            text-align: center;
        }
        .treatment-grid-card.has-vial .treatment-card-title {
            text-align: center;
        }

        /* Escenario grande para el Hero (composición con profundidad) */
        .hero-vial-stage {
            position: relative;
            height: 560px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-vial-main {
            position: relative;
            z-index: 3;
            height: 480px;
            width: auto;
            object-fit: contain;
            filter: drop-shadow(0 40px 34px rgba(9,13,22,0.2));
            animation: floatVial 5.5s ease-in-out infinite;
        }
        .hero-vial-side {
            position: absolute;
            z-index: 2;
            width: auto;
            object-fit: contain;
            opacity: 0.85;
        }
        .hero-vial-side.side-a {
            height: 280px;
            top: 6%;
            right: 4%;
            filter: drop-shadow(0 24px 20px rgba(9,13,22,0.14));
            animation: floatVial 4.6s ease-in-out infinite;
            animation-delay: .4s;
        }
        .hero-vial-side.side-b {
            height: 260px;
            bottom: 4%;
            left: 2%;
            filter: drop-shadow(0 24px 20px rgba(9,13,22,0.14));
            animation: floatVial 6.2s ease-in-out infinite;
            animation-delay: .9s;
            opacity: 0.75;
        }
        @media (max-width: 991px) {
            .hero-vial-stage { height: 380px; }
            .hero-vial-main { height: 320px; }
            .hero-vial-side.side-a { height: 180px; }
            .hero-vial-side.side-b { height: 160px; }
        }

        /* Imagen flotante dentro del modal de detalle */
        .modal-vial-stage {
            position: relative;
            height: 220px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .modal-vial-img {
            height: 210px;
            width: auto;
            object-fit: contain;
            filter: drop-shadow(0 24px 18px rgba(9,13,22,0.18));
            animation: floatVial 4.8s ease-in-out infinite;
        }

        /* Línea de Tiempo de Innovación (Timeline) */
        .timeline-container {
            position: relative;
            padding-left: 30px;
            border-left: 2px solid var(--border-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 45px;
        }
        .timeline-item:last-child { margin-bottom: 0; }
        .timeline-dot {
            position: absolute;
            left: -41px;
            top: 4px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--white);
            border: 4px solid var(--accent-gold);
            z-index: 2;
        }
        .timeline-year {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--accent-gold);
            margin-bottom: 5px;
        }

        /* Sección de Certificaciones Metódicas */
        .cert-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            transition: var(--transition-base);
        }
        .cert-card:hover {
            box-shadow: var(--shadow-premium);
            border-color: var(--accent-gold);
        }
        .cert-seal {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            border: 2px dashed var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.8rem;
            color: var(--accent-gold);
            margin: 0 auto 20px auto;
            background-color: var(--bg-light);
        }

        /* Formularios de Alta Conversión */
        .form-floating > .form-control:focus ~ label,
        .form-floating > .form-control:not(:placeholder-shown) ~ label {
            color: var(--accent-gold);
        }
        .form-control:focus {
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 4px rgba(197,160,89,0.1);
        }
        .form-control {
            border-radius: 12px;
            border: 1px solid #cbd5e1;
            padding: 14px;
        }

        /* Preguntas Frecuentes - Acordeón Limpio */
        .accordion-item {
            border: none;
            margin-bottom: 12px;
            border-radius: 16px !important;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .accordion-button {
            font-weight: 600;
            color: var(--primary-dark);
            padding: 20px 24px;
            background-color: var(--white);
        }
        .accordion-button:not(.collapsed) {
            background-color: var(--bg-light);
            color: var(--accent-gold);
            box-shadow: none;
        }
        .accordion-button::after {
            font-family: 'bootstrap-icons';
            content: '\F2A6';
            background-image: none;
            transform: none;
            font-size: 1.1rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
        }
        .accordion-button:not(.collapsed)::after {
            content: '\F2A2';
            color: var(--accent-gold);
            transform: rotate(180px);
        }

        /* Footer Avanzado Institucional */
        footer {
            background-color: var(--primary-dark);
            color: #cbd5e1;
            padding: 80px 0 30px 0;
            font-size: 0.92rem;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        footer h6 {
            color: var(--white);
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            font-size: 0.82rem;
            margin-bottom: 24px;
        }
        footer a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition-base);
        }
        footer a:hover {
            color: var(--accent-gold);
            transform: translateX(3px);
        }
        .footer-bottom {
            margin-top: 60px;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 0.82rem;
            color: #64748b;
        }

        /* Animaciones Globales de Scroll por Inserción */
        .reveal-element {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .reveal-element.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        /* Modales Dinámicos Estilizados para Productos */
        .modal-content {
            border-radius: 28px;
            border: none;
            box-shadow: var(--shadow-hover);
            overflow: hidden;
        }
        .modal-header-premium {
            padding: 40px 40px 20px 40px;
            border-bottom: none;
            position: relative;
        }
        .modal-body-premium {
            padding: 20px 40px 40px 40px;
        }
        .modal-product-indicator {
            width: 12px;
            height: 100%;
            position: absolute;
            left: 0; top: 0;
        }
    
/* ==========================================================================
   Utilidades y compatibilidad específicas de WordPress (tema)
   ========================================================================== */
.max-width-600 { max-width: 600px; }

.navbar-brand-logo { display: flex; align-items: center; }
.navbar-brand-logo img { max-height: var(--logo-max-height, 48px); width: auto; transition: var(--transition-base); }

.footer-widget { margin-bottom: 20px; color: #94a3b8; }
.footer-widget a { color: #cbd5e1; }
.footer-widget ul { list-style: none; padding-left: 0; }

/* Compatibilidad con el editor de bloques / Elementor: evita que contenedores
   anidados rompan el ancho máximo definido por Bootstrap */
.entry-content > * { max-width: 100%; }

/* Paginación básica de WordPress con estética premium */
.pagination, .nav-links {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}
.pagination a, .pagination span, .nav-links a, .nav-links span {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 50px;
    border: 1px solid var(--border-color);
    color: var(--slate-gray);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition-base);
}
.pagination .current, .nav-links .current {
    background: var(--primary-dark);
    color: #fff;
    border-color: var(--primary-dark);
}
.pagination a:hover, .nav-links a:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* ==========================================================================
   Compatibilidad visual con widgets NATIVOS de Elementor
   (Heading, Text Editor, Image, Icon Box, Counter) usados en el contenido
   auto-generado de Inicio, Nosotros y Contacto para que sean 100% editables
   directamente en el lienzo de Elementor conservando el estilo premium.
   ========================================================================== */

/* Tarjeta genérica: mismo look que .treatment-grid-card pero reutilizable
   en cualquier columna de Elementor (Misión/Visión/Filosofía, etc.) */
.biostem-card {
    background: var(--light-section-bg, #f8fafc);
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 1rem;
    padding: 1.75rem;
    height: 100%;
}

/* Fuerza el color e ícono dorado dentro de un Icon Box de Elementor,
   sin depender de los controles de estilo internos del widget */
.biostem-gold-icon .elementor-icon,
.biostem-gold-icon .elementor-icon i,
.biostem-gold-icon .elementor-icon svg {
    color: var(--accent-gold) !important;
    fill: var(--accent-gold) !important;
    font-size: 2rem !important;
}
.biostem-gold-icon.elementor-widget-icon-box {
    background: var(--light-section-bg, #f8fafc);
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 1rem;
    padding: 1.75rem;
    height: 100%;
    transition: var(--transition-base);
}
.biostem-gold-icon.elementor-widget-icon-box:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 30px rgba(9,13,22,0.08);
}

/* Ítem de línea de tiempo (Nosotros > Hitos), construido con Heading + Text
   Editor apilados dentro de una sola columna */
.biostem-timeline-item {
    border-left: 3px solid var(--accent-gold);
    padding-left: 1.25rem;
    margin-bottom: 1.75rem;
}

/* Imagen del Hero cuando es un widget nativo de Elementor (en vez del
   composición de 3 viales superpuestos): centra y limita el alto */
.biostem-hero-image {
    display: flex;
    justify-content: center;
}
.biostem-hero-image img {
    max-height: 460px;
    width: auto;
}

/* Contador nativo de Elementor con la tipografía del diseño premium */
.biostem-counter .elementor-counter-number-wrapper {
    color: var(--primary-dark);
    font-weight: 800;
}
.biostem-counter .elementor-counter-title {
    color: var(--slate-gray);
    font-size: 0.9rem;
}