/* ==========================================================================
   CLÍNICA BIOVITALITY | LONGEVIDAD & ODONTOLOGÍA
   Hoja de Estilos - Nueva Estructura de Gran Clínica Internacional
   Paleta: #123F46, #2A7D73, #DCEDEA, #617980, #F6F8F8, #FFFFFF, #172326, #607075, #B99A61, #B84242
   Tipografía: Manrope (Títulos) + Inter (Textos y Formularios) - Sin degradados
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. VARIABLES CSS & RESET
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #123F46;        /* Azul petróleo principal */
  --color-primary-dark: #0B292E;   /* Petróleo profundo */
  --color-clinical: #2A7D73;       /* Verde clínico */
  --color-clinical-hover: #1E625A;
  --color-soft-green: #DCEDEA;     /* Verde suave */
  --color-soft-green-light: #F0F7F6;
  --color-gray-blue: #617980;      /* Azul grisáceo */
  --color-bg-light: #F6F8F8;       /* Fondo claro */
  --color-white: #FFFFFF;          /* Blanco */
  --color-text-main: #172326;      /* Texto principal */
  --color-text-muted: #607075;     /* Texto secundario */
  --color-gold: #B99A61;           /* Dorado suave para detalles premium */
  --color-gold-hover: #A6874E;
  --color-gold-light: #FBF8F1;
  --color-error: #B84242;          /* Color de error */
  --color-border: #E2EAEA;         /* Borde sutil */
  --color-border-hover: #2A7D73;

  --font-heading: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --container-max-width: 1160px;
  --header-height: 68px;
  --topbar-height: 38px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 9999px;

  --shadow-sm: 0 2px 6px rgba(18, 63, 70, 0.04);
  --shadow-md: 0 6px 18px rgba(18, 63, 70, 0.07);
  --shadow-lg: 0 14px 32px rgba(18, 63, 70, 0.1);

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--topbar-height) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.58;
  color: var(--color-text-main);
  background-color: var(--color-bg-light);
  overflow-x: hidden;
  position: relative;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 99999;
  font-weight: 600;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 14px;
  outline: 3px solid var(--color-gold);
}

:focus-visible {
  outline: 2px solid var(--color-clinical);
  outline-offset: 2px;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-main);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(1.85rem, 3.4vw, 2.45rem); }
h2 { font-size: clamp(1.45rem, 2.4vw, 1.9rem); }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.35rem); }
h4 { font-size: 1.02rem; }

p {
  color: var(--color-text-muted);
  margin-bottom: 0.85rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-clinical);
  text-decoration: none;
  transition: all var(--transition-fast);
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
}

/* --------------------------------------------------------------------------
   2. CONTENEDORES Y SECCIONES
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.section {
  padding-top: 56px;
  padding-bottom: 56px;
}

.section--alt {
  background-color: var(--color-white);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 36px auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-clinical);
  background-color: var(--color-soft-green);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
}

.section-tag--gold {
  color: #7A5B1E;
  background-color: #F8F3E8;
  border: 1px solid rgba(185, 154, 97, 0.4);
}

.section-title {
  margin-bottom: 10px;
  color: var(--color-text-main);
}

.section-desc {
  font-size: 0.96rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   3. BOTONES Y COMPONENTES
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

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

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

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

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

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

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

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

.btn-gold:hover, .btn-gold:focus {
  background-color: var(--color-gold-hover);
  border-color: var(--color-gold-hover);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.45);
}

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

.btn-sm {
  min-height: 38px;
  padding: 6px 14px;
  font-size: 0.84rem;
}

.btn-block {
  width: 100%;
}

.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-clinical);
}

/* --------------------------------------------------------------------------
   4. BARRA SUPERIOR (TOPBAR)
   -------------------------------------------------------------------------- */
.topbar {
  background-color: var(--color-primary);
  color: var(--color-soft-green);
  font-size: 0.82rem;
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(220, 237, 234, 0.12);
}

.topbar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.topbar-info {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-soft-green);
}

.topbar-item svg {
  width: 13px;
  height: 13px;
  stroke: var(--color-gold);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-soft-green);
}

.topbar-link:hover {
  color: var(--color-white);
}

.topbar-btn {
  background-color: var(--color-clinical);
  color: var(--color-white);
  padding: 3px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.78rem;
}

.topbar-btn:hover {
  background-color: var(--color-gold);
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   5. ENCABEZADO Y MENÚ DE NAVEGACIÓN
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition-fast);
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--color-clinical);
}

.nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-main);
  padding: 6px 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-clinical);
  transition: width var(--transition-fast);
}

.nav-link:hover, .nav-link:focus {
  color: var(--color-clinical);
}

.nav-link:hover::after, .nav-link:focus::after {
  width: 100%;
}

.header-cta {
  display: flex;
  align-items: center;
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px;
  cursor: pointer;
  color: var(--color-primary);
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}

.menu-toggle svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-primary);
}

/* --------------------------------------------------------------------------
   6. HERO SECTION CON SLIDER DE FONDO COMPLETO
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-primary);
  border-bottom: 1px solid rgba(220, 237, 234, 0.15);
}

.hero-bg-slider {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.hero-bg-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1.2s ease-in-out, transform 7s ease-out;
  transform: scale(1.06);
}

.hero-bg-slide.active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.hero-bg-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    135deg,
    rgba(18, 63, 70, 0.94) 0%,
    rgba(18, 63, 70, 0.85) 55%,
    rgba(23, 35, 38, 0.78) 100%
  );
}

.hero-container {
  position: relative;
  z-index: 3;
  width: 100%;
  padding-top: 52px;
  padding-bottom: 52px;
}

.hero-content {
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background-color: rgba(220, 237, 234, 0.16);
  border: 1px solid rgba(220, 237, 234, 0.35);
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-soft-green);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  margin-bottom: 16px;
}

.hero-badge svg {
  stroke: var(--color-gold);
  flex-shrink: 0;
}

.hero-title {
  font-size: 2.65rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero-desc {
  font-size: 1.06rem;
  line-height: 1.65;
  color: rgba(246, 248, 248, 0.92);
  margin-bottom: 26px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.btn-hero {
  min-height: 48px;
  padding: 12px 24px;
  font-size: 0.95rem;
}

.hero-trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(220, 237, 234, 0.2);
  max-width: 600px;
}

.hero-trust-grid .trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-soft-green);
}

.hero-trust-grid .trust-item svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-gold);
  flex-shrink: 0;
}

.hero-slider-nav {
  position: absolute;
  bottom: 24px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 10;
  background-color: rgba(18, 63, 70, 0.65);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.45);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
}

.slider-dot.active {
  width: 22px;
  border-radius: var(--radius-pill);
  background-color: var(--color-gold);
}

/* --------------------------------------------------------------------------
   7. NUEVO HUB DE ESPECIALIDADES INTEGRADAS (2 GRANDES PABELLONES)
   -------------------------------------------------------------------------- */
.hub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.hub-card {
  background-color: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 4px 18px rgba(18, 63, 70, 0.04);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.hub-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background-color: var(--color-clinical);
}

.hub-card:nth-child(2)::before {
  background-color: var(--color-gold);
}

.hub-card:hover {
  border-color: rgba(42, 125, 115, 0.5);
  box-shadow: 0 10px 30px rgba(18, 63, 70, 0.08);
  transform: translateY(-2px);
}

.hub-card-header {
  margin-bottom: 16px;
}

.hub-card-title {
  color: var(--color-primary);
  margin-top: 8px;
  margin-bottom: 10px;
  font-size: 1.45rem;
}

.hub-photo-frame {
  margin: 16px 0 22px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.hub-photo-frame img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-normal);
}

.hub-card:hover .hub-photo-frame img {
  transform: scale(1.04);
}

.hub-features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 26px;
}

.hub-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-main);
  background: #F9FBFA;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(42, 125, 115, 0.08);
}

.hub-feature-item svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-clinical);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   8. SECCIÓN DE BIOMARCADORES & PROTOCOLO CLÍNICO
   -------------------------------------------------------------------------- */
.biomarkers-container {
  background: linear-gradient(145deg, #123F46 0%, #0D2C31 100%);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 42px 36px;
  border: 1px solid rgba(220, 237, 234, 0.2);
  box-shadow: 0 10px 35px rgba(18, 63, 70, 0.15);
}

.biomarkers-stages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 32px 0 26px 0;
}

.stage-card {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(220, 237, 234, 0.18);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--transition-normal);
}

.stage-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-gold);
  transform: translateY(-3px);
}

.stage-num {
  width: 42px;
  height: 42px;
  background-color: var(--color-clinical);
  color: var(--color-white);
  border-radius: 50%;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px auto;
  box-shadow: 0 4px 12px rgba(42, 125, 115, 0.4);
}

.stage-num--gold {
  background-color: var(--color-gold);
  box-shadow: 0 4px 12px rgba(185, 154, 97, 0.4);
}

.stage-card h4 {
  color: var(--color-white);
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.stage-card p {
  color: #DCEDEA;
  font-size: 0.86rem;
  line-height: 1.55;
  margin-bottom: 0;
}

.biomarkers-disclaimer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.82rem;
  color: #DCEDEA;
  opacity: 0.95;
  text-align: center;
  padding-top: 18px;
  border-top: 1px solid rgba(220, 237, 234, 0.15);
}

/* --------------------------------------------------------------------------
   9. SERVICIOS CLÍNICOS & TRATAMIENTOS
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.service-card {
  background-color: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 3px 12px rgba(18, 63, 70, 0.03);
  transition: all var(--transition-fast);
}

.service-card:hover {
  border-color: var(--color-clinical);
  box-shadow: 0 8px 24px rgba(42, 125, 115, 0.1);
  transform: translateY(-3px);
}

.service-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--color-soft-green);
  border: 1px solid rgba(42, 125, 115, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: all var(--transition-fast);
}

.service-card:hover .service-icon-wrap {
  background-color: var(--color-clinical);
}

.service-icon-wrap svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-clinical);
  transition: stroke var(--transition-fast);
}

.service-card:hover .service-icon-wrap svg {
  stroke: var(--color-white);
}

.service-title {
  color: var(--color-primary);
  margin-bottom: 8px;
  font-size: 1.12rem;
}

.service-desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: 18px;
}

.service-cta-link {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-clinical);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-fast);
}

.service-card:hover .service-cta-link {
  color: var(--color-primary);
  gap: 9px;
}

/* --------------------------------------------------------------------------
   10. METODOLOGÍA CLÍNICA (4 PASOS)
   -------------------------------------------------------------------------- */
.methodology-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.method-step {
  background-color: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 18px;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.method-step:hover {
  border-color: var(--color-clinical);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.step-badge {
  font-family: var(--font-heading);
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--color-clinical);
  background-color: var(--color-soft-green);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 12px;
}

.method-step h4 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.method-step p {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.methodology-note {
  background-color: var(--color-soft-green);
  border: 1px solid rgba(42, 125, 115, 0.25);
  border-radius: var(--radius-md);
  padding: 14px 24px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  max-width: 760px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   11. SECCIÓN PARALLAX SIGNATURE
   -------------------------------------------------------------------------- */
.parallax-cta-section {
  position: relative;
  background-image: url('../assets/images/parallax-bg.jpg');
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  padding: 68px 0;
  color: var(--color-white);
  overflow: hidden;
}

.parallax-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(18, 63, 70, 0.92);
  z-index: 1;
}

.parallax-container {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 740px;
  margin: 0 auto;
}

.parallax-title {
  color: var(--color-white);
  font-size: clamp(1.7rem, 3.1vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.parallax-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-soft-green);
  margin-bottom: 26px;
}

.parallax-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}

.parallax-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  border-top: 1px solid rgba(220, 237, 234, 0.2);
  padding-top: 22px;
}

.parallax-feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.parallax-feature-item svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-gold);
}

.parallax-feature-item span {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   12. CENTRO DE PACIENTES (EQUIPO, CONVENIOS & TESTIMONIOS)
   -------------------------------------------------------------------------- */
.patient-center-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.team-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.team-photo-frame {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--color-soft-green);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}

.team-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-name {
  font-size: 1.05rem;
  color: var(--color-primary);
  margin-bottom: 3px;
}

.team-role {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-clinical);
  margin-bottom: 8px;
}

.team-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}

.badge-pending {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  color: var(--color-gray-blue);
  background-color: var(--color-bg-light);
  border: 1px dashed var(--color-border);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.convenios-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px;
  text-align: center;
  margin-top: 24px;
}

.testimonial-card-placeholder {
  background-color: var(--color-white);
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 18px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.testimonial-card-placeholder svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-gray-blue);
  margin-bottom: 8px;
}

.testimonial-card-placeholder p {
  font-size: 0.84rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   13. PREGUNTAS FRECUENTES (FAQ HUB 2 COLUMNAS)
   -------------------------------------------------------------------------- */
.faq-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.25fr;
  gap: 32px;
  align-items: start;
}

.faq-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 20px);
}

.faq-support-card {
  background: linear-gradient(145deg, #FFFFFF 0%, #F5F9F8 100%);
  border: 1.5px solid rgba(42, 125, 115, 0.22);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 4px 20px rgba(18, 63, 70, 0.05);
}

.faq-support-title {
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.3;
  margin-top: 8px;
  margin-bottom: 12px;
}

.faq-support-desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.faq-contact-box {
  background-color: var(--color-white);
  border: 1px solid rgba(42, 125, 115, 0.2);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.faq-contact-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.faq-contact-icon {
  width: 40px;
  height: 40px;
  background-color: rgba(37, 211, 102, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.faq-contact-icon svg {
  stroke: #128C7E;
  width: 20px;
  height: 20px;
}

.faq-contact-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.faq-contact-sub {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.btn-whatsapp-faq {
  background-color: #25D366;
  color: #FFFFFF;
  border-color: #25D366;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.btn-whatsapp-faq:hover {
  background-color: #1EBE5B;
  border-color: #1EBE5B;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
}

.faq-trust-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
}

.faq-trust-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.faq-trust-list li svg {
  width: 15px;
  height: 15px;
  stroke: var(--color-clinical);
  flex-shrink: 0;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background-color: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.faq-item:hover {
  border-color: rgba(42, 125, 115, 0.45);
  box-shadow: 0 4px 16px rgba(18, 63, 70, 0.06);
}

.faq-item.active {
  border-color: var(--color-clinical);
  box-shadow: 0 6px 20px rgba(42, 125, 115, 0.1);
  background-color: #FAFCFC;
}

.faq-button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
}

.faq-btn-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
}

.faq-item-icon {
  width: 34px;
  height: 34px;
  background-color: var(--color-soft-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.faq-item-icon svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-clinical);
}

.faq-item.active .faq-item-icon {
  background-color: var(--color-clinical);
}

.faq-item.active .faq-item-icon svg {
  stroke: var(--color-white);
}

.faq-q-text {
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.35;
}

.faq-icon {
  width: 20px;
  height: 20px;
  stroke: var(--color-clinical);
  transition: transform var(--transition-fast), stroke var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  stroke: var(--color-gold);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  padding: 0 20px 0 68px;
}

.faq-item.active .faq-content {
  padding-bottom: 18px;
}

.faq-content p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  border-left: 2px solid var(--color-clinical);
  padding-left: 12px;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   14. SECCIÓN COMBINADA: UBICACIÓN & FORMULARIO
   -------------------------------------------------------------------------- */
.contact-location-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: stretch;
}

.location-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

.location-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.location-item-icon {
  width: 36px;
  height: 36px;
  background-color: var(--color-soft-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.location-item-icon svg {
  width: 17px;
  height: 17px;
  stroke: var(--color-clinical);
}

.location-item-text h4 {
  font-size: 0.94rem;
  margin-bottom: 2px;
  color: var(--color-primary);
}

.location-item-text p {
  font-size: 0.85rem;
  margin-bottom: 0;
}

.location-map-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  min-height: 190px;
  margin-top: 14px;
}

.location-map-frame iframe {
  width: 100%;
  height: 190px;
  border: 0;
  display: block;
}

.form-wrapper {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.eval-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  min-height: 42px;
  padding: 8px 12px;
  font-size: 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-light);
  color: var(--color-text-main);
  transition: all var(--transition-fast);
}

.form-textarea {
  min-height: 80px;
  resize: vertical;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  background-color: var(--color-white);
  border-color: var(--color-clinical);
  outline: none;
}

.form-input.error, .form-select.error, .form-textarea.error {
  border-color: var(--color-error);
}

.field-error-msg {
  font-size: 0.76rem;
  color: var(--color-error);
  display: none;
}

.field-error-msg.visible {
  display: block;
}

.radio-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.radio-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-light);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.radio-card input[type="radio"] {
  width: 14px;
  height: 14px;
  accent-color: var(--color-clinical);
}

.radio-card:has(input:checked) {
  border-color: var(--color-clinical);
  background-color: var(--color-soft-green);
  color: var(--color-primary);
}

.checkbox-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.checkbox-card input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-clinical);
  margin-top: 2px;
  flex-shrink: 0;
}

.form-privacy-alert {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background-color: #FBF8F1;
  border: 1px solid rgba(185, 154, 97, 0.4);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.78rem;
  color: #6E5A2D;
}

.form-privacy-alert svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-gold);
  flex-shrink: 0;
  margin-top: 1px;
}

/* --------------------------------------------------------------------------
   15. SECCIÓN INSTAGRAM (6 FOTOS)
   -------------------------------------------------------------------------- */
.instagram-header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 14px;
}

.instagram-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.instagram-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  aspect-ratio: 1 / 1;
  background-color: var(--color-primary);
  display: block;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.instagram-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.instagram-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(18, 63, 70, 0.78);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  opacity: 0;
  transition: opacity var(--transition-fast);
  padding: 6px;
  text-align: center;
}

.instagram-card:hover .instagram-overlay,
.instagram-card:focus .instagram-overlay {
  opacity: 1;
}

.instagram-overlay svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-white);
}

.instagram-overlay span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   16. PIE DE PÁGINA (FOOTER)
   -------------------------------------------------------------------------- */
.footer {
  background-color: #0B292E;
  color: var(--color-soft-green);
  padding-top: 44px;
  padding-bottom: 22px;
  font-size: 0.86rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 28px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(220, 237, 234, 0.12);
}

.footer-brand .brand-name {
  color: var(--color-white);
}

.footer-brand .brand-subtitle {
  color: var(--color-soft-green);
  margin-bottom: 10px;
}

.footer-brand-desc {
  font-size: 0.84rem;
  color: rgba(220, 237, 234, 0.8);
  max-width: 270px;
}

.footer-column h4 {
  color: var(--color-white);
  font-size: 0.94rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.footer-nav a {
  color: rgba(220, 237, 234, 0.8);
  font-size: 0.84rem;
}

.footer-nav a:hover {
  color: var(--color-white);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 0.84rem;
  color: rgba(220, 237, 234, 0.8);
}

.footer-contact-item svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-gold);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-medical-disclaimer {
  padding: 16px 0;
  border-bottom: 1px solid rgba(220, 237, 234, 0.12);
}

.medical-disclaimer-card {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(220, 237, 234, 0.12);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 0.78rem;
  color: rgba(220, 237, 234, 0.8);
  text-align: center;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  font-size: 0.78rem;
  color: rgba(220, 237, 234, 0.6);
  flex-wrap: wrap;
  gap: 10px;
}

.footer-bottom a {
  color: var(--color-soft-green);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   17. BARRA FLOTANTE MÓVIL
   -------------------------------------------------------------------------- */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 8px 14px;
  z-index: 999;
  box-shadow: 0 -4px 14px rgba(18, 63, 70, 0.08);
}

.mobile-bottom-bar-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn-mobile-action {
  min-height: 44px;
  font-size: 0.88rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   18. BOTÓN VOLVER ARRIBA
   -------------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 72px;
  right: 16px;
  width: 40px;
  height: 40px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-clinical);
}

.back-to-top svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-white);
}

/* --------------------------------------------------------------------------
   19. ANIMACIONES SUTILES
   -------------------------------------------------------------------------- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

@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;
  }
  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
  .hero-bg-slide, .hero-slide {
    transition: none !important;
  }
  .parallax-cta-section {
    background-attachment: scroll !important;
  }
}

/* --------------------------------------------------------------------------
   20. RESPONSIVE MEDIA QUERIES
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero {
    min-height: 520px;
  }

  .hero-title {
    font-size: 2.35rem;
  }

  .hub-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .methodology-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .patient-center-grid {
    grid-template-columns: 1fr;
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .faq-sidebar {
    position: static;
  }

  .contact-location-grid {
    grid-template-columns: 1fr;
  }

  .instagram-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  body {
    padding-bottom: 64px;
  }

  .hero {
    min-height: 480px;
  }

  .hero-container {
    padding-top: 40px;
    padding-bottom: 48px;
  }

  .hero-title {
    font-size: 2.05rem;
  }

  .hero-desc {
    font-size: 0.98rem;
  }

  .parallax-cta-section {
    background-attachment: scroll;
    padding: 48px 0;
  }

  .parallax-features {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .topbar-info .topbar-office {
    display: none;
  }

  .topbar-actions .topbar-link {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: 20px;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    z-index: 998;
  }

  .nav.is-open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 12px;
    margin-bottom: 18px;
  }

  .nav-link {
    font-size: 1.02rem;
    width: 100%;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .biomarkers-stages-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .faq-content {
    padding: 0 16px 0 16px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .radio-options {
    grid-template-columns: 1fr;
  }

  .instagram-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .mobile-bottom-bar {
    display: block;
  }
}

@media (max-width: 414px) {
  .section {
    padding-top: 36px;
    padding-bottom: 36px;
  }

  .hero {
    min-height: auto;
  }

  .hero-container {
    padding-top: 32px;
    padding-bottom: 40px;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-actions {
    flex-direction: column;
    gap: 10px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-trust-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .hero-slider-nav {
    bottom: 14px;
    right: 14px;
    padding: 4px 8px;
  }

  .hub-card {
    padding: 20px 16px;
  }

  .biomarkers-container {
    padding: 24px 16px;
  }

  .faq-support-card {
    padding: 20px 16px;
  }

  .faq-button {
    padding: 14px 14px;
  }

  .faq-btn-left {
    gap: 10px;
  }

  .faq-item-icon {
    width: 30px;
    height: 30px;
  }

  .faq-q-text {
    font-size: 0.9rem;
  }

  .form-wrapper, .location-box {
    padding: 18px 14px;
  }
}