/* ==========================================================================
   SISTEMA DE DISEÑO & VARIABLES (ORTHO SECOND OPINION)
   ========================================================================== */
:root {
  /* Paleta de Colores de Lujo */
  --primary: #F17721;        /* Naranja Corporativo Vibrante */
  --primary-hover: #D96A1C;  /* Naranja más intenso para interacciones */
  --primary-light: #FDF3EB;  /* Tono suave de naranja para fondos de sección */
  --dark-graphite: #1F2937;  /* Gris oscuro editorial / Textos principales */
  --body-muted: #4B5563;     /* Gris para descripciones legibles y tagline */
  --border-clinical: #E5E7EB; /* Bordes sutiles para elementos médicos */
  --clinical-bg: #F9FAFB;    /* Fondo suave de clínica premium */
  --white: #FFFFFF;
  
  /* Gradientes de Alta Gama */
  --gradient-gold: linear-gradient(135deg, #F17721 0%, #FFA86B 100%);
  --gradient-dark: linear-gradient(135deg, #1F2937 0%, #111827 100%);
  --gradient-soft: linear-gradient(180deg, #FFFFFF 0%, #F9FAFB 100%);
  --gradient-clinical: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
  
  /* Sombras y Efectos (Soft Premium Shadows) */
  --shadow-sm: 0 4px 6px -1px rgba(31, 41, 55, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(31, 41, 55, 0.08), 0 4px 6px -2px rgba(31, 41, 55, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(31, 41, 55, 0.1), 0 10px 10px -5px rgba(31, 41, 55, 0.04);
  --shadow-glow: 0 0 30px rgba(241, 119, 33, 0.2);
  
  /* Tipografía */
  --font-serif: 'Playfair Display', serif;
  --font-sans: 'Outfit', sans-serif;
  
  /* Radios de Borde */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  /* Transiciones */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

/* ==========================================================================
   RESET & ESTILOS BASE
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--white);
  color: var(--dark-graphite);
  line-height: 1.6;
  overflow-x: hidden;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar Premium */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--clinical-bg);
}
::-webkit-scrollbar-thumb {
  background: #D1D5DB;
  border-radius: var(--radius-full);
  border: 2px solid var(--clinical-bg);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  outline: none;
}

/* ==========================================================================
   CLASES REUTILIZABLES & COMPONENTES COMUNES
   ========================================================================== */
.section-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
  opacity: 0;
  transform: translateY(30px);
  animation: revealUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.section-subtitle {
  font-family: var(--font-sans);
  color: var(--primary);
  text-transform: uppercase;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 3px;
  display: inline-block;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 2.5rem;
  color: var(--dark-graphite);
  line-height: 1.2;
  margin-bottom: 20px;
}

.section-description {
  color: var(--body-muted);
  font-size: 1.1rem;
  font-weight: 300;
}

/* Botones Premium */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--gradient-gold);
  color: var(--white);
  padding: 16px 36px;
  border-radius: var(--radius-full);
  font-weight: 500;
  box-shadow: 0 8px 20px rgba(241, 119, 33, 0.25);
  transition: var(--transition-smooth);
  cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(241, 119, 33, 0.35);
  background: linear-gradient(135deg, #D96A1C 0%, #F17721 100%);
}
.btn-primary:active {
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--dark-graphite);
  border: 1px solid var(--border-clinical);
  padding: 16px 36px;
  border-radius: var(--radius-full);
  font-weight: 500;
  transition: var(--transition-smooth);
  cursor: pointer;
}
.btn-secondary:hover {
  background: var(--clinical-bg);
  border-color: var(--dark-graphite);
  transform: translateY(-3px);
}

/* ==========================================================================
   HEADER (GLASSMORPHIC NAVIDAD)
   ========================================================================== */
#main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-smooth);
  padding: 16px 0;
  background: #FFFFFF; /* Cabecera 100% blanca sólida desde el inicio */
  border-bottom: 1px solid var(--border-clinical); /* Borde de separación clínico */
  box-shadow: 0 2px 15px rgba(31, 41, 55, 0.04); /* Sombra sutil para despegarla del Hero */
}

#main-header.scrolled {
  padding: 12px 0;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-clinical);
  box-shadow: 0 4px 20px rgba(31, 41, 55, 0.06);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  height: 68px; /* Aumentado de 48px a 68px para máxima visibilidad */
  width: auto;
  transition: var(--transition-smooth);
}

#main-header.scrolled .header-logo {
  height: 52px; /* Reducción fluida y elegante en scroll */
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-item {
  font-size: 0.95rem;
  color: var(--dark-graphite);
  font-weight: 400;
  position: relative;
  padding: 6px 0;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition-smooth);
}

.nav-item:hover {
  color: var(--primary);
}

.nav-item:hover::after {
  width: 100%;
}

.cta-nav {
  background: var(--dark-graphite);
  color: var(--white);
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.cta-nav:hover {
  background: var(--primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.mobile-nav-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--dark-graphite);
  cursor: pointer;
}

/* ==========================================================================
   HERO SECTION: "ANATOMÍA VIVA" — DARK PREMIUM + PARTICLE CANVAS
   ========================================================================== */
.hero-section {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  background: #0A0E17;
  padding-top: 120px;
  overflow: hidden;
}

/* Canvas de partículas (fondo interactivo) */
#hero-particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: auto;
}

/* Aura radial que da profundidad */
.hero-aura-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(241, 119, 33, 0.07) 0%, transparent 70%),
    radial-gradient(circle at 85% 15%, rgba(241, 119, 33, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 10% 80%, rgba(241, 119, 33, 0.04) 0%, transparent 40%);
  z-index: 2;
  pointer-events: none;
}

.hero-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 3;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-content-center {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 5;
}

/* Badge de etiqueta - frosted glass en oscuro */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 10px 22px;
  border-radius: var(--radius-full);
  margin-bottom: 32px;
  opacity: 0;
  transform: translateY(20px);
  animation: revealUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s forwards;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: var(--radius-full);
  display: block;
  box-shadow: 0 0 12px var(--primary), 0 0 24px rgba(241, 119, 33, 0.3);
  animation: statusPulse 2s infinite;
}

.badge-text {
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: rgba(255, 255, 255, 0.65);
}

/* Título principal - Tipografía masiva Apple-level */
.hero-title {
  font-family: var(--font-serif);
  font-size: 5rem;
  font-weight: 900;
  line-height: 1.25; /* Espacio elegante para respirar */
  color: #FFFFFF;
  margin-bottom: 28px;
  letter-spacing: -2px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  min-height: 130px;
}

.title-line {
  display: block;
  overflow: visible; /* Evita que se corten los caracteres como "¿" y "?" */
  white-space: nowrap;
  padding: 0.05em 0; /* Espacio de seguridad */
}

/* Span de cada letra individual para la animación */
.title-line .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px) rotateX(-20deg);
  animation: charReveal 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes charReveal {
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0);
  }
}

/* Línea acentuada en naranja (Sans-Serif modernizada, bold y sin itálica) */
.title-accent {
  font-family: var(--font-sans);
  color: var(--primary);
  font-style: normal; /* Adiós itálica */
  font-weight: 800; /* Ultra bold */
  letter-spacing: -1.5px;
  text-shadow: 0 2px 10px rgba(241, 119, 33, 0.12); /* Sombra ultra suave, evita el bloque naranja */
}

/* Highlight text legacy compatibility */
.highlight-text {
  color: var(--primary);
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 700;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.5);
  max-width: 620px;
  margin-bottom: 44px;
  font-weight: 300;
  line-height: 1.7;
  opacity: 0;
  transform: translateY(30px);
  animation: revealUp 1s cubic-bezier(0.16, 1, 0.3, 1) 1.6s forwards;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 64px;
  opacity: 0;
  transform: translateY(30px);
  animation: revealUp 1s cubic-bezier(0.16, 1, 0.3, 1) 1.9s forwards;
}

/* Override del secondary button para hero oscuro */
.hero-btn-secondary {
  color: rgba(255, 255, 255, 0.7) !important;
  border-color: rgba(255, 255, 255, 0.15) !important;
}
.hero-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: rgba(255, 255, 255, 0.3) !important;
  color: #FFFFFF !important;
}

.hero-trust-indicators {
  display: flex;
  gap: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 30px;
  max-width: 800px;
  opacity: 0;
  transform: translateY(30px);
  animation: revealUp 1s cubic-bezier(0.16, 1, 0.3, 1) 2.2s forwards;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.4);
  font-weight: 400;
}

.trust-item i {
  color: var(--primary);
  font-size: 1rem;
  filter: drop-shadow(0 0 8px rgba(241, 119, 33, 0.3));
}

.hero-scroll-down {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  pointer-events: auto;
}

.mouse-icon {
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  display: block;
  position: relative;
}

.mouse-icon::after {
  content: '';
  width: 4px;
  height: 8px;
  background: var(--primary);
  border-radius: var(--radius-full);
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: mouseScroll 1.5s infinite;
}

/* ==========================================================================
   EL PROBLEMA: EL LABERINTO DEL PACIENTE ORTOPÉDICO
   ========================================================================== */
.problem-section {
  background-color: var(--clinical-bg);
  position: relative;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 80px;
}

.problem-card {
  background: linear-gradient(145deg, #FFFFFF, #FAFBFB);
  border: 1px solid rgba(31, 41, 55, 0.05);
  padding: 56px 40px;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 35px -5px rgba(31, 41, 55, 0.04), 0 4px 12px -2px rgba(31, 41, 55, 0.02);
  position: relative;
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.problem-card:hover {
  transform: translateY(-10px);
  border-color: rgba(241, 119, 33, 0.22);
  box-shadow: 0 30px 60px -15px rgba(31, 41, 55, 0.12), 0 0 30px -5px rgba(241, 119, 33, 0.06);
}

.premium-icon-box {
  width: 72px;
  height: 72px;
  position: relative;
  margin-bottom: 32px;
}

.icon-glow-bg {
  position: absolute;
  top: 10%;
  left: 10%;
  width: 80%;
  height: 80%;
  background: var(--primary);
  border-radius: 20px 8px 20px 20px;
  filter: blur(14px);
  opacity: 0.12;
  transition: var(--transition-smooth);
}

.icon-inner {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(243, 244, 246, 0.98));
  border: 1px solid rgba(31, 41, 55, 0.07);
  border-radius: 20px 8px 20px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(31, 41, 55, 0.03);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.icon-inner i {
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Hover effects */
.problem-card:hover .icon-inner {
  transform: rotate(6deg) scale(1.08);
  background: linear-gradient(135deg, var(--primary), #FF6D40);
  border-color: transparent;
  color: var(--white);
  box-shadow: 0 12px 30px rgba(241, 119, 33, 0.35);
}

.problem-card:hover .icon-inner i {
  transform: scale(1.1);
}

.problem-card:hover .icon-glow-bg {
  opacity: 0.45;
  filter: blur(18px);
  transform: scale(1.2);
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--dark-graphite);
  margin-bottom: 18px;
}

.card-text {
  color: var(--body-muted);
  font-size: 0.92rem;
  font-weight: 300;
  line-height: 1.65;
}

.card-border-glow {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #F17721, #FF8D4B);
  transform: scaleX(0);
  transform-origin: left;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.problem-card:hover .card-border-glow {
  transform: scaleX(1);
}

/* Tarjeta Destacada */
.problem-card.card-accent {
  border: 1px solid rgba(241, 119, 33, 0.32);
  box-shadow: 0 12px 40px rgba(241, 119, 33, 0.04), 0 4px 12px rgba(31, 41, 55, 0.02);
}

.problem-card.card-accent:hover {
  border-color: rgba(241, 119, 33, 0.45);
  box-shadow: 0 30px 60px -15px rgba(31, 41, 55, 0.12), 0 0 30px rgba(241, 119, 33, 0.12);
}

.problem-card.card-accent::before {
  content: 'Crítico';
  position: absolute;
  top: 24px;
  right: 24px;
  background: rgba(241, 119, 33, 0.08);
  color: var(--primary);
  font-family: var(--font-sans);
  font-size: 0.65rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 1.5px;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid rgba(241, 119, 33, 0.18);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  box-shadow: 0 2px 8px rgba(241, 119, 33, 0.05);
}

/* Comparativa VS interactiva */
.vs-container {
  background: var(--white);
  border: 1px solid var(--border-clinical);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.vs-header {
  background: var(--gradient-dark);
  color: var(--white);
  padding: 24px;
  text-align: center;
}

.vs-header h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
}

.vs-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
}

.vs-side {
  padding: 56px 48px;
  transition: var(--transition-smooth);
}

.vs-left {
  background: rgba(31, 41, 55, 0.015);
  border-right: 1px solid rgba(31, 41, 55, 0.04);
}

.vs-right {
  background: rgba(241, 119, 33, 0.015);
}

.vs-side-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.vs-left .vs-side-title {
  color: #EF4444;
}

.vs-right .vs-side-title {
  color: #10B981;
}

.vs-side ul {
  list-style: none;
}

.vs-side ul li {
  margin-bottom: 18px;
  font-size: 0.96rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: var(--body-muted);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: transparent;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: center;
}

.vs-side ul li:hover {
  background: var(--white);
  box-shadow: 0 4px 12px rgba(31, 41, 55, 0.03);
  transform: scale(1.02);
}

.vs-side ul li i {
  font-size: 1.1rem;
}

.vs-left ul li i {
  color: #EF4444;
}

.vs-right ul li i {
  color: #10B981;
}

.vs-divider {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--primary);
  color: var(--white);
  width: 46px;
  height: 46px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: 0 0 15px rgba(241, 119, 33, 0.4);
  z-index: 10;
  border: 3px solid var(--white);
}

/* ==========================================================================
   NUESTROS TRES PILARES (PROPUESTA DE VALOR CON DIVISIÓN VISUAL)
   ========================================================================== */
.pillars-section {
  background: var(--white);
  overflow: hidden;
}

.pillars-split-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 80px;
  align-items: center;
}

.pillars-left-content {
  display: flex;
  flex-direction: column;
}

.section-header.align-left {
  text-align: left;
  align-items: flex-start;
  margin-bottom: 40px;
}

.pillars-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pillar-item {
  display: flex;
  gap: 24px;
  padding: 28px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(31, 41, 55, 0.03);
  background: linear-gradient(145deg, #FFFFFF, #FAFBFB);
  box-shadow: 0 4px 15px rgba(31, 41, 55, 0.02);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pillar-dot {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background: var(--clinical-bg);
  color: var(--body-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid var(--border-clinical);
  transition: var(--transition-smooth);
}

.pillar-item-body h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark-graphite);
  margin-bottom: 8px;
  transition: var(--transition-smooth);
}

.pillar-item-body p {
  color: var(--body-muted);
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.6;
}

/* Estado Activo / Destacado */
.pillar-item.p-active {
  border-color: rgba(241, 119, 33, 0.25);
  box-shadow: 0 10px 30px rgba(241, 119, 33, 0.05);
  background: linear-gradient(145deg, #FFFFFF, #FDF3EB);
}

.pillar-item.p-active .pillar-dot {
  background: var(--primary);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(241, 119, 33, 0.3);
}

/* Hover effects */
.pillar-item:hover {
  transform: translateY(-4px);
  border-color: rgba(241, 119, 33, 0.18);
  box-shadow: 0 12px 25px rgba(31, 41, 55, 0.06);
}

/* Lado Derecho: Ilustración */
.pillars-right-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-glow-halo {
  position: absolute;
  top: 15%;
  left: 15%;
  width: 70%;
  height: 70%;
  background: radial-gradient(circle, rgba(241, 119, 33, 0.15) 0%, transparent 70%);
  filter: blur(40px);
  z-index: 1;
  pointer-events: none;
  animation: visualPulse 6s ease-in-out infinite;
}

@keyframes visualPulse {
  0%, 100% {
    opacity: 0.7;
    transform: scale(0.95);
  }
  50% {
    opacity: 1.2;
    transform: scale(1.08);
  }
}

.visual-card-wrapper {
  position: relative;
  z-index: 2;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 25px 60px -15px rgba(10, 14, 23, 0.6);
  overflow: hidden;
  background: #0A0E17;
  transition: var(--transition-smooth);
}

.visual-card-wrapper:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 35px 75px -10px rgba(10, 14, 23, 0.8), 0 0 40px rgba(241, 119, 33, 0.15);
}

.visual-illustration-img {
  width: 100%;
  max-width: 440px;
  display: block;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.visual-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(to top, rgba(10, 14, 23, 0.9) 0%, rgba(10, 14, 23, 0) 100%);
  padding: 24px 20px 20px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 500;
  font-family: var(--font-sans);
  letter-spacing: 0.5px;
}

.visual-caption i {
  color: var(--primary);
  animation: spinSlow 12s linear infinite;
}

@keyframes spinSlow {
  to { transform: rotate(360deg); }
}

.pillar-card {
  position: relative;
  padding: 40px 0;
  border-bottom: 1px solid var(--border-clinical);
  transition: var(--transition-smooth);
}

.pillar-number {
  font-family: var(--font-sans);
  font-size: 3.5rem;
  font-weight: 200;
  color: #E5E7EB;
  margin-bottom: 16px;
  line-height: 1;
  transition: var(--transition-smooth);
}

.pillar-card:hover .pillar-number {
  color: var(--primary);
  transform: translateX(10px);
}

.pillar-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark-graphite);
  margin-bottom: 16px;
}

.pillar-text {
  color: var(--body-muted);
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.7;
}

/* Pilar Destacado en CSS */
.pillar-card.p-accent::after {
  content: '';
  position: absolute;
  top: 0;
  left: -20px;
  width: 3px;
  height: 0;
  background: var(--primary);
  transition: var(--transition-smooth);
}

.pillar-card.p-accent:hover::after {
  height: 100%;
}

/* ==========================================================================
   TIMELINE: PATIENT JOURNEY
   ========================================================================== */
.journey-section {
  background: var(--clinical-bg);
}

.journey-timeline {
  display: flex;
  flex-direction: column;
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.journey-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 22px;
  width: 3px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary) 0%, rgba(241, 119, 33, 0.4) 50%, rgba(241, 119, 33, 0.05) 100%);
  z-index: 1;
  box-shadow: 0 0 10px rgba(241, 119, 33, 0.15);
}

.timeline-step {
  display: flex;
  gap: 30px;
  margin-bottom: 50px;
  position: relative;
  z-index: 2;
}

.timeline-step:last-child {
  margin-bottom: 0;
}

.step-badge {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, #FFFFFF 0%, #F9FAFB 100%);
  border: 1px solid rgba(31, 41, 55, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--body-muted);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 10px rgba(31, 41, 55, 0.03);
  flex-shrink: 0;
}

.timeline-step:hover .step-badge {
  background: linear-gradient(135deg, var(--primary), #FF6D40);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 0 20px rgba(241, 119, 33, 0.4);
  transform: scale(1.15);
}

.step-content {
  background: linear-gradient(145deg, #FFFFFF, #FAFBFB);
  border: 1px solid rgba(31, 41, 55, 0.05);
  border-left: 3px solid transparent;
  padding: 36px 40px;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px -4px rgba(31, 41, 55, 0.03), 0 2px 6px -2px rgba(31, 41, 55, 0.01);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  flex-grow: 1;
}

.timeline-step:hover .step-content {
  border-left-color: var(--primary);
  transform: translateX(12px);
  box-shadow: 0 20px 40px -10px rgba(31, 41, 55, 0.08), 0 0 25px -5px rgba(241, 119, 33, 0.04);
  border-top-color: rgba(241, 119, 33, 0.1);
  border-right-color: rgba(241, 119, 33, 0.1);
  border-bottom-color: rgba(241, 119, 33, 0.1);
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--dark-graphite);
  margin-bottom: 12px;
}

.step-text {
  color: var(--body-muted);
  font-size: 0.92rem;
  font-weight: 300;
  line-height: 1.65;
}

/* ==========================================================================
   SECCIÓN DE CHECK-IN INTERACTIVA
   ========================================================================== */
.checkin-section {
  background: var(--white);
  position: relative;
}

.checkin-wrapper {
  display: grid;
  grid-template-columns: 4.5fr 5.5fr;
  gap: 60px;
  align-items: center;
}

.info-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #10B981;
  font-size: 0.8rem;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

.checkin-title {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--dark-graphite);
  margin-bottom: 24px;
}

.checkin-text {
  color: var(--body-muted);
  font-size: 1.05rem;
  font-weight: 300;
  margin-bottom: 30px;
}

.feature-bullets {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.bullet-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--dark-graphite);
}

.bullet-item i {
  color: var(--primary);
  font-size: 1.1rem;
}

/* Tarjeta del Formulario/Simulador */
.checkin-simulator-card {
  background: var(--white);
  border: 1px solid var(--border-clinical);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.sim-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-clinical);
  padding-bottom: 20px;
  margin-bottom: 24px;
}

.sim-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--dark-graphite);
}

.sim-status {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--body-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: var(--radius-full);
  animation: statusPulse 1.5s infinite;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dark-graphite);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-group input, .form-group select {
  border: 1px solid var(--border-clinical);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--dark-graphite);
  font-weight: 400;
  font-size: 0.95rem;
  background: var(--clinical-bg);
  transition: var(--transition-fast);
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(241, 119, 33, 0.1);
}

/* Zona de Carga Arrastrar y Soltar */
.upload-drop-zone {
  border: 2px dashed #CBD5E1;
  background: var(--clinical-bg);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  position: relative;
  cursor: pointer;
  transition: var(--transition-smooth);
  margin-bottom: 24px;
}

.upload-drop-zone.dragover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.file-hidden-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.drop-icon {
  font-size: 2.2rem;
  color: var(--body-muted);
  margin-bottom: 12px;
  transition: var(--transition-smooth);
}

.upload-drop-zone:hover .drop-icon {
  color: var(--primary);
  transform: translateY(-3px);
}

.drop-main-text {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--dark-graphite);
  margin-bottom: 4px;
}

.drop-sub-text {
  font-size: 0.8rem;
  color: var(--body-muted);
  margin-bottom: 10px;
}

.drop-formats {
  font-size: 0.7rem;
  background: rgba(31, 41, 55, 0.05);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  color: var(--body-muted);
}

/* Estados de la subida */
.drop-zone-uploading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0;
}

.upload-spinner {
  font-size: 2.2rem;
  color: var(--primary);
  margin-bottom: 16px;
}

.upload-main-text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--dark-graphite);
  margin-bottom: 12px;
}

.progress-bar-container {
  width: 100%;
  max-width: 250px;
  height: 6px;
  background: #E2E8F0;
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
  transition: width 0.1s linear;
}

.upload-percentage {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
}

.drop-zone-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.success-icon {
  font-size: 2.5rem;
  color: #10B981;
  margin-bottom: 12px;
  animation: scaleIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.success-main-text {
  font-weight: 600;
  font-size: 1rem;
  color: var(--dark-graphite);
  margin-bottom: 4px;
}

.success-sub-text {
  font-size: 0.85rem;
  color: var(--body-muted);
  margin-bottom: 14px;
}

.btn-reset-upload {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--primary);
  text-decoration: underline;
  cursor: pointer;
}

.btn-submit-checkin {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  background: var(--dark-graphite);
  color: var(--white);
  padding: 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.btn-submit-checkin:hover {
  background: var(--primary);
  box-shadow: var(--shadow-glow);
}

/* Pantalla final de éxito */
.portal-success-screen {
  text-align: center;
  animation: fadeIn 0.6s ease forwards;
}

.success-illustration {
  margin-bottom: 24px;
  display: flex;
  justify-content: center;
}

.shield-check-icon {
  position: relative;
  width: 80px;
  height: 80px;
  background: var(--primary-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--primary);
}

.check-overlay {
  position: absolute;
  bottom: 15px;
  right: 15px;
  font-size: 1.1rem;
  background: #10B981;
  color: var(--white);
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--white);
}

.portal-success-screen h3 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--dark-graphite);
  margin-bottom: 12px;
}

.portal-success-desc {
  font-size: 0.9rem;
  color: var(--body-muted);
  margin-bottom: 24px;
}

.assigned-details {
  background: var(--clinical-bg);
  border: 1px solid var(--border-clinical);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 28px;
  text-align: left;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.85rem;
  border-bottom: 1px dashed var(--border-clinical);
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-row span {
  color: var(--body-muted);
}

.detail-row strong {
  color: var(--dark-graphite);
}

.status-badge {
  background: #FEF3C7;
  color: #D97706;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
}

.btn-whatsapp-follow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #25D366;
  color: var(--white);
  padding: 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.2);
  transition: var(--transition-smooth);
}

.btn-whatsapp-follow:hover {
  background: #128C7E;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3);
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   METRICAS DE IMPACTO (ESTADÍSTICAS)
   ========================================================================== */
.metrics-section {
  background: var(--gradient-dark);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.metrics-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(241, 119, 33, 0.08) 0%, rgba(0,0,0,0) 50%);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
  z-index: 2;
  padding: 60px 0;
}

.metric-card {
  text-align: center;
  padding: 0 20px;
}

.metric-value {
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--font-sans);
  line-height: 1;
  margin-bottom: 12px;
}

.metric-divider {
  width: 40px;
  height: 2px;
  background: var(--white);
  margin: 0 auto 20px;
  opacity: 0.3;
}

.metric-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.metric-desc {
  color: #9CA3AF;
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.5;
}

/* ==========================================================================
   EL DOCTOR (DR. CARLOS GARZA MORENO)
   ========================================================================== */
.doctor-section {
  background: var(--white);
}

.doctor-wrapper {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 60px;
  align-items: center;
}

.doctor-image-container {
  position: relative;
}

.doctor-image-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
  aspect-ratio: 1 / 1;
}

.doctor-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.doctor-image-wrapper:hover .doctor-img {
  transform: scale(1.05);
}

.image-accent-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(31, 41, 55, 0.4) 0%, rgba(255,255,255,0) 60%);
  pointer-events: none;
}

.doctor-badge-floating {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--white);
  border: 1px solid var(--border-clinical);
  box-shadow: var(--shadow-md);
  padding: 16px 24px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
}

.doctor-badge-floating i {
  color: var(--primary);
  font-size: 1.8rem;
}

.doctor-badge-floating strong {
  display: block;
  font-size: 0.9rem;
  color: var(--dark-graphite);
}

.doctor-badge-floating span {
  font-size: 0.75rem;
  color: var(--body-muted);
}

.doctor-info {
  padding-left: 20px;
}

.doctor-title {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--dark-graphite);
  margin-bottom: 24px;
  line-height: 1.2;
}

.doctor-quote {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--primary);
  border-left: 3px solid var(--primary);
  padding-left: 20px;
  margin-bottom: 28px;
  line-height: 1.6;
}

.doctor-bio p {
  color: var(--body-muted);
  font-size: 1.05rem;
  font-weight: 300;
  margin-bottom: 20px;
}

.doctor-bio p strong {
  color: var(--dark-graphite);
}

.doctor-credentials {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--border-clinical);
  padding-top: 24px;
  margin-top: 24px;
}

.credential-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--dark-graphite);
  font-weight: 500;
}

.credential-item i {
  color: var(--primary);
  font-size: 1.1rem;
}

/* ==========================================================================
   ALIADOS ESTRATÉGICOS (B2B TABS)
   ========================================================================== */
.allies-section {
  background: var(--clinical-bg);
}

.allies-tabs-control {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.ally-tab-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid var(--border-clinical);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 500;
  color: var(--body-muted);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.ally-tab-btn i {
  font-size: 1.1rem;
}

.ally-tab-btn.active {
  background: var(--dark-graphite);
  color: var(--white);
  border-color: var(--dark-graphite);
  box-shadow: var(--shadow-md);
}

.ally-tab-btn:not(.active):hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  color: var(--primary);
}

.allies-tabs-content {
  background: var(--white);
  border: 1px solid var(--border-clinical);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.5s ease forwards;
}

.tab-pane.active {
  display: block;
}

.tab-pane-grid {
  display: grid;
  grid-template-columns: 7.5fr 4.5fr;
}

.pane-text {
  padding: 60px;
}

.pane-text h3 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--dark-graphite);
  margin-bottom: 20px;
}

.pane-text p {
  color: var(--body-muted);
  font-size: 1.05rem;
  font-weight: 300;
  margin-bottom: 30px;
  line-height: 1.7;
}

.pane-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pane-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--dark-graphite);
  font-weight: 400;
}

.pane-list li i {
  color: var(--primary);
  margin-top: 4px;
}

.pane-visual {
  background: var(--gradient-clinical);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  position: relative;
}

.metric-badge {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  max-width: 220px;
  width: 100%;
  border-top: 4px solid var(--primary);
  transition: var(--transition-smooth);
}

.metric-badge:hover {
  transform: scale(1.05);
}

.metric-badge.m-blue {
  border-top-color: #3B82F6;
}

.metric-badge.m-green {
  border-top-color: #10B981;
}

.badge-num {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  color: var(--dark-graphite);
  line-height: 1;
  margin-bottom: 8px;
}

.badge-lbl {
  font-size: 0.8rem;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--body-muted);
  letter-spacing: 1px;
}

/* ==========================================================================
   FOOTER (PIE DE PÁGINA)
   ========================================================================== */
.footer-section {
  background: var(--gradient-dark);
  color: var(--white);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 4.5fr 3fr 4.5fr;
  gap: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding-bottom: 60px;
}

.footer-logo {
  height: 72px; /* Aumentado de 52px a 72px para mayor presencia de marca */
  margin-bottom: 24px;
  filter: brightness(0) invert(1);
}

.footer-desc {
  color: #9CA3AF;
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.6;
  margin-bottom: 24px;
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.footer-socials a {
  width: 38px;
  height: 38px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.footer-socials a:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.footer-links h4, .footer-contact h4 {
  font-size: 0.9rem;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--white);
  margin-bottom: 28px;
}

.footer-links ul, .footer-contact ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-links ul li a {
  color: #9CA3AF;
  font-size: 0.9rem;
  font-weight: 400;
}

.footer-links ul li a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-contact ul li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: #9CA3AF;
}

.footer-contact ul li i {
  color: var(--primary);
  margin-top: 4px;
  font-size: 1rem;
}

.footer-bottom {
  padding: 30px 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: #6B7280;
}

.footer-legal-links {
  display: flex;
  gap: 12px;
}

.footer-legal-links a:hover {
  color: var(--primary);
}

/* ==========================================================================
   ANIMACIONES & MEDIA QUERIES (RESPONSIVIDAD)
   ========================================================================== */
@keyframes revealUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes mouseScroll {
  0% {
    transform: translate(-50%, 0);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, 15px);
    opacity: 0;
  }
}

@keyframes statusPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.5;
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* ═══════════════════════════════════════════
   MEDIA QUERIES (RESPONSIVO)
   ═══════════════════════════════════════════ */

/* Tablets / Pantallas medianas (1024px) */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3.8rem;
    min-height: 110px;
  }
  
  .problem-grid, .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .problem-card.card-accent {
    grid-column: span 2;
  }
  
  .check-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .doctor-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .doctor-image-container {
    max-width: 450px;
    margin: 0 auto;
  }
  
  .tab-pane-grid {
    grid-template-columns: 1fr;
  }
  
  .pane-visual {
    padding: 40px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: span 2;
  }
}

/* Móviles / Pantallas pequeñas (768px) */
@media (max-width: 768px) {
  .section-container {
    padding: 60px 16px;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  /* Menu responsivo */
  .nav-menu {
    display: none; /* Se activará con JS */
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  .hero-title {
    font-size: 2.8rem;
    min-height: 85px;
  }
  
  .title-line {
    white-space: normal;
  }
  
  .hero-actions {
    flex-direction: column;
    gap: 12px;
  }
  
  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
  }
  
  .hero-trust-indicators {
    flex-direction: column;
    gap: 16px;
  }
  
  .problem-grid, .pillars-grid, .metrics-grid {
    grid-template-columns: 1fr;
  }
  
  .pillars-split-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .pillars-right-visual {
    order: 2;
  }
  
  .visual-illustration-img {
    max-width: 100%;
  }
  
  .problem-card.card-accent {
    grid-column: span 1;
  }
  
  .vs-split {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .vs-left {
    border-right: none;
    border-bottom: 1px solid rgba(31, 41, 55, 0.04);
    order: 1;
  }
  
  .vs-divider {
    order: 2;
    margin: -23px auto;
    position: relative;
    z-index: 12;
    left: 0;
    top: 0;
    transform: none;
  }
  
  .vs-right {
    order: 3;
  }
  
  .vs-side {
    padding: 40px 24px;
  }
  
  .checkin-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .checkin-title {
    font-size: 2.2rem;
  }
  
  .checkin-simulator-card {
    padding: 24px 16px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .allies-tabs-control {
    flex-direction: column;
    gap: 10px;
  }
  
  .pane-text {
    padding: 30px 16px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* ==========================================================================
   FLOATING WHATSAPP BUTTON WITH PREMIUM TOOLTIP
   ========================================================================== */
.whatsapp-floating {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.35);
  z-index: 999;
  text-decoration: none;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  animation: floatBubble 3s ease-in-out infinite;
}

.whatsapp-floating:hover {
  transform: scale(1.1) rotate(10deg);
  background: #20BA5A;
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.5);
  color: var(--white);
}

@keyframes floatBubble {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* Premium Tooltip */
.whatsapp-tooltip {
  position: absolute;
  right: 75px;
  background: var(--dark-graphite);
  color: var(--white);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-family: var(--font-sans);
  font-weight: 500;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateX(10px);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.whatsapp-tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -5px;
  transform: translateY(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: var(--dark-graphite);
}

.whatsapp-floating:hover .whatsapp-tooltip {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 768px) {
  .whatsapp-floating {
    bottom: 20px;
    right: 20px;
    width: 54px;
    height: 54px;
    font-size: 1.9rem;
  }
  .whatsapp-tooltip {
    display: none; /* Ocultar tooltips en móviles */
  }
}