/* ==========================================================================
   ARPETI - SISTEMA DE DISEÑO Y ESTILOS DE LANDING PAGE
   ========================================================================== */

/* 1. VARIABLES Y DISEÑO CORE */
:root {
  /* Paleta de Colores Oficial */
  --color-primary: #007C89;       /* Azul profundo: agua, confianza, limpieza */
  --color-success: #38A169;       /* Verde recarga: ecología, recarga, acción */
  --color-light-blue: #D8F3F5;    /* Azul espuma: fondos suaves, burbujas */
  --color-bg: #F7FBFA;            /* Blanco limpio: fondo general e higiénico */
  --color-dark: #243033;          /* Grafito técnico: texto, legibilidad */
  
  /* Variantes de Color */
  --color-primary-hover: #005F6A;
  --color-success-hover: #2F855A;
  --color-text-muted: #5A6E72;
  --color-white: #FFFFFF;
  --color-shadow: rgba(36, 48, 51, 0.08);
  --color-border: rgba(0, 124, 137, 0.12);
  --flow-hover-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  --interactive-ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* Identidad NAILA, limitada al modulo del asistente */
  --naila-indigo: #4F46E5;
  --naila-violet: #7C3AED;
  --naila-lilac: #F1ECFF;
  --naila-accent: #7C3AED;
  --naila-accent-soft: rgba(124, 58, 237, 0.12);
  --naila-border: rgba(124, 58, 237, 0.18);

  /* Tipografía */
  --font-title: 'Outfit', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  --font-body: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;

  /* Espaciado y Bordes */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-round: 50%;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

/* 2. RESET Y COMPORTAMIENTO GENERAL */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--color-bg);
  color: var(--color-dark);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  color: var(--color-dark);
  font-weight: 700;
  line-height: 1.25;
}

p {
  color: var(--color-text-muted);
}

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

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

ul {
  list-style: none;
}

/* 3. ELEMENTOS REUSABLES / UTILIDADES */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 0;
}

@media (max-width: 768px) {
  .container {
    padding: 60px 0;
  }
}

.text-center {
  text-align: center;
}

.section-header {
  max-width: 700px;
  margin: 0 auto 50px auto;
  text-align: center;
}

.section-header h2 {
  font-size: 2.25rem;
  color: var(--color-primary);
  margin-bottom: 15px;
  position: relative;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--color-success);
  margin: 15px auto 0 auto;
  border-radius: 2px;
}

.section-header p {
  font-size: 1.125rem;
}

/* Botones Premium */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
  gap: 10px;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(0, 124, 137, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 124, 137, 0.35);
}

.btn-success {
  background-color: var(--color-success);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(56, 161, 105, 0.25);
}

.btn-success:hover {
  background-color: var(--color-success-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 161, 105, 0.35);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-light-blue);
  color: var(--color-primary-hover);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

/* Tarjetas (Diseño Limpio y contraste) */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 30px;
  box-shadow: 0 8px 30px var(--color-shadow);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--flow-hover-shadow);
  border-color: rgba(0, 124, 137, 0.28);
}

/* Efecto Glassmorphism Moderado (para Header y Chat de NAILA) */
.glass-panel {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 124, 137, 0.08);
}

/* 4. HEADER Y NAVEGACIÓN */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  height: 80px;
  transition: var(--transition);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

header.scrolled {
  height: 70px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0;
  height: 100%;
}

.logo-container {
  display: flex;
  align-items: center;
  height: 50px;
}

.logo-container img {
  width: clamp(110px, 10vw, 130px);
  height: auto;
}

nav ul {
  display: flex;
  gap: 30px;
  align-items: center;
}

nav a {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-dark);
  padding: 8px 0;
  position: relative;
}

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

nav a:hover, nav a.active {
  color: var(--color-primary);
}

nav a:hover::after, nav a.active::after {
  width: 100%;
}

/* Menú Móvil Hamburger */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
  z-index: 1100;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

@media (max-width: 992px) {
  .logo-container img {
    width: clamp(90px, 24vw, 105px);
  }

  .menu-toggle {
    display: flex;
  }
  
  nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: var(--color-white);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.05);
    padding: 100px 40px;
    transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1050;
  }
  
  nav.open {
    right: 0;
  }
  
  nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 25px;
  }

  nav a {
    font-size: 1.15rem;
  }
  
  /* Icono hamburger animado */
  .menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  .menu-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -7px);
  }
}

/* 5. SECCIÓN 1: HERO */
.hero-section {
  position: relative;
  min-height: 95vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #F7FBFA 0%, #E6F8F9 100%);
  padding-top: 100px;
  overflow: hidden;
}

.hero-section .container {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.15fr);
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
  z-index: 2;
}

.hero-text {
  max-width: 550px;
}

.hero-descriptor {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: 12px;
  display: inline-block;
}

.hero-text h1 {
  font-size: 3.5rem;
  color: var(--color-primary);
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-text .slogan {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-success);
  line-height: 1.3;
  margin-bottom: 20px;
}

.hero-text .support-text {
  font-size: 1.125rem;
  margin-bottom: 35px;
}

.hero-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.hero-img {
  width: 100%;
  max-width: clamp(560px, 48vw, 760px);
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 124, 137, 0.12);
  box-shadow: 0 24px 60px rgba(0, 124, 137, 0.16), 0 8px 22px rgba(36, 48, 51, 0.08);
}

/* Burbujas flotantes en el fondo (GPU-accelerated) */
.bubble-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.bubble {
  position: absolute;
  bottom: -50px;
  background: radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.9), rgba(216, 243, 245, 0.7) 34%, rgba(56, 161, 105, 0.2) 100%);
  border: 1px solid rgba(0, 124, 137, 0.28);
  border-radius: var(--radius-round);
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.65), 0 8px 22px rgba(0, 124, 137, 0.12);
  animation: bubble-rise 15s infinite ease-in;
  will-change: transform, opacity;
}

@keyframes bubble-rise {
  0% {
    transform: translateY(0) scale(0.8);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-110vh) scale(1.2);
    opacity: 0;
  }
}

@media (max-width: 992px) {
  .hero-section {
    padding-top: 120px;
    min-height: auto;
  }
  .hero-section .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-text {
    max-width: 100%;
    margin: 0 auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-img {
    max-width: min(92vw, 560px);
  }
}

@media (max-width: 576px) {
  .hero-text h1 {
    font-size: 2.75rem;
  }
  .hero-text .slogan {
    font-size: 1.4rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
}

/* 6. SECCIÓN 2: QUÉ ES ARPETI */
.what-is-section {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.what-is-intro {
  max-width: 800px;
  margin: 0 auto 50px auto;
  text-align: center;
  font-size: 1.25rem;
  line-height: 1.7;
}

.what-is-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.what-is-card {
  text-align: center;
  padding: 40px 30px;
}

.what-is-icon-wrapper {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-round);
  background-color: var(--color-light-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px auto;
  color: var(--color-primary);
  transition: var(--transition);
}

.what-is-card:hover .what-is-icon-wrapper {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.05);
}

.what-is-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: var(--color-dark);
}

@media (max-width: 992px) {
  .what-is-grid {
    grid-template-columns: 1fr;
  }
}

/* 7. SECCIÓN 3: DIFERENCIADOR SUSTENTABLE (ARPETI Refill) */
.sustentable-section {
  background-color: var(--color-light-blue);
  position: relative;
  overflow: hidden;
}

.sustentable-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-success));
}

.refill-subtitle {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-success);
  text-align: center;
  margin-top: -35px;
  margin-bottom: 45px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Diagrama de Ciclo Horizontal */
.diagram-container {
  position: relative;
  margin: 60px 0 80px 0;
}

.diagram-flow {
  display: grid;
  grid-template-columns: 1fr 42px 1fr 42px 1fr 42px 1fr 42px 1fr;
  gap: 14px;
  align-items: start;
  position: relative;
}

.diagram-step {
  text-align: center;
  z-index: 2;
  position: relative;
}

.flow-icon {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-round);
  background: linear-gradient(180deg, var(--color-white) 0%, #EEF9FA 100%);
  border: 2px solid rgba(0, 124, 137, 0.26);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px auto;
  color: var(--color-primary);
  box-shadow: 0 10px 28px rgba(0, 124, 137, 0.12);
  transition: transform 240ms var(--interactive-ease), box-shadow 240ms ease-out, border-color 240ms ease-out;
}

.diagram-step:hover .flow-icon,
.timeline-step:hover .flow-icon {
  transform: translateY(-4px);
  border-color: var(--color-success);
  box-shadow: 0 10px 28px rgba(0, 124, 137, 0.16);
}

.step-icon,
.flow-icon img {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.flow-arrow {
  width: 30px;
  height: 30px;
  margin: 33px auto 0 auto;
  opacity: 0.58;
  filter: saturate(0.9);
}

.flow-arrow-down {
  display: none;
}

.step-label {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.step-description {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding: 0 10px;
}

/* Grid de Beneficios */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.benefit-card {
  background-color: var(--color-white);
  padding: 35px 25px;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid rgba(0, 124, 137, 0.05);
  transition: transform 240ms var(--interactive-ease), box-shadow 240ms ease-out, border-color 240ms ease-out;
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--flow-hover-shadow);
  border-color: rgba(0, 124, 137, 0.28);
}

.benefit-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-round);
  background-color: rgba(56, 161, 105, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px auto;
  color: var(--color-success);
}

.benefit-card h4 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--color-dark);
}

@media (max-width: 768px) {
  .diagram-flow {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .flow-arrow-right {
    display: none;
  }

  .flow-arrow-down {
    display: block;
    margin: -4px auto 0 auto;
  }
  
  .benefits-grid {
    grid-template-columns: 1fr;
  }
}

/* 8. SECCIÓN 4: PRODUCTOS INICIALES (ARPETI Clean) */
.products-section {
  background-color: var(--color-white);
}

.products-grid-wrapper {
  display: block;
}

.products-info-aside {
  max-width: 820px;
  margin: 0 auto 40px auto;
  text-align: center;
}

.products-info-aside h3 {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  padding: 30px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.product-card-mockup {
  display: block;
  width: 100%;
  max-width: 260px;
  height: auto;
  object-fit: contain;
  align-self: center;
  margin: 0 auto 28px auto;
  border-radius: var(--radius-lg);
}

.product-card-mockup-wide {
  max-width: 340px;
  aspect-ratio: 1672 / 941;
  object-fit: cover;
}

.product-badge {
  align-self: flex-start;
  background-color: var(--color-light-blue);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 50px;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.product-icon-box {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background-color: #F7FBFA;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-primary);
}

.product-card h3 {
  font-size: 1.42rem;
  margin-bottom: 12px;
  color: var(--color-dark);
}

.product-card p {
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.product-sizes {
  border-top: 1px solid var(--color-border);
  padding-top: 15px;
  margin-top: auto;
}

.sizes-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-dark);
  margin-bottom: 8px;
  display: block;
}

.sizes-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.size-chip {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

@media (max-width: 1200px) {
  .products-info-aside {
    max-width: 760px;
  }
}

@media (max-width: 768px) {
  .products-grid {
    grid-template-columns: 1fr;
  }

  .product-card-mockup,
  .product-card-mockup-wide {
    max-width: min(78vw, 320px);
    height: auto;
  }
}

/* 9. SECCIÓN 5: PARA QUIÉN ES */
.for-whom-section {
  background-color: var(--color-bg);
}

.for-whom-text-support {
  text-align: center;
  max-width: 750px;
  margin: -20px auto 50px auto;
  font-size: 1.15rem;
}

.for-whom-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.whom-card {
  background-color: var(--color-white);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 20px;
  transition: transform 240ms var(--interactive-ease), box-shadow 240ms ease-out, border-color 240ms ease-out;
}

.whom-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--flow-hover-shadow);
  border-color: var(--color-primary);
}

.whom-icon-box {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background-color: var(--color-light-blue);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.whom-card h4 {
  font-size: 1.1rem;
  color: var(--color-dark);
}

@media (max-width: 992px) {
  .for-whom-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .for-whom-grid {
    grid-template-columns: 1fr;
  }
}

/* 10. SECCIÓN 6: CÓMO FUNCIONA */
.how-it-works-section {
  background-color: var(--color-white);
}

.timeline-flow {
  display: grid;
  grid-template-columns: 1fr 42px 1fr 42px 1fr 42px 1fr 42px 1fr;
  gap: 14px;
  align-items: start;
  margin-bottom: 40px;
}

.timeline-step {
  position: relative;
  text-align: center;
}

.timeline-icon {
  width: 88px;
  height: 88px;
  margin-bottom: 18px;
}

.timeline-step-label {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-dark);
}

.how-it-works-support {
  text-align: center;
  max-width: 650px;
  margin: 40px auto 0 auto;
  font-size: 1.15rem;
  color: var(--color-primary);
  font-weight: 600;
}

@media (max-width: 768px) {
  .timeline-flow {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .timeline-step {
    display: flex;
    align-items: center;
    text-align: left;
    gap: 20px;
    background-color: var(--color-bg);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
  }

  .timeline-icon {
    margin: 0;
    flex: 0 0 auto;
  }
}

/* 11. SECCIÓN 7: NAILA TE AYUDA A ELEGIR (Protagonista) */
.naila-section {
  background: linear-gradient(135deg, #E6F8F9 0%, #F7FBFA 100%);
  position: relative;
  overflow: hidden;
}

.naila-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(36px, 5vw, 58px);
  align-items: center;
}

.naila-intro {
  max-width: 500px;
}

.naila-intro h2 {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.naila-badge {
  background-color: var(--color-success);
  color: var(--color-white);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
  display: inline-block;
}

.naila-intro p {
  font-size: 1.125rem;
  margin-bottom: 30px;
}

/* Chatbot de Simulación Panel (Glassmorphism Moderado) */
.chat-panel {
  position: relative;
  border-radius: 30px;
  box-shadow: 0 22px 54px rgba(0, 124, 137, 0.14), 0 0 34px rgba(124, 58, 237, 0.08);
  overflow: hidden;
  min-height: 520px;
  height: min(60vh, 580px);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--naila-border);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(216, 243, 245, 0.36));
}

.chat-panel:hover {
  transform: none;
  box-shadow: 0 22px 54px rgba(0, 124, 137, 0.14), 0 0 34px rgba(124, 58, 237, 0.08);
  border-color: var(--naila-border);
}

.chat-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(124, 58, 237, 0.16), transparent 34%, rgba(0, 124, 137, 0.1));
  height: 4px;
  opacity: 1;
}

.chat-header {
  position: relative;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-dark);
  padding: 22px 28px 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid rgba(0, 124, 137, 0.1);
  border-radius: 24px 24px 0 0;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.chat-logo {
  width: min(148px, 42vw);
  height: auto;
  margin-bottom: 6px;
  display: block;
}

.chat-info h4 {
  color: var(--color-dark);
  font-size: 1.1rem;
}

.chat-info span {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
  max-width: 320px;
}

.chat-info span::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--naila-accent);
  box-shadow: 0 0 10px rgba(124, 58, 237, 0.25);
  border-radius: var(--radius-round);
}

.chat-body {
  position: relative;
  z-index: 2;
  flex-grow: 1;
  margin: 14px 22px;
  padding: 22px 22px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: linear-gradient(180deg, rgba(247, 251, 250, 1), rgba(216, 243, 245, 0.42));
  border: 1px solid rgba(0, 124, 137, 0.16);
  border-radius: 22px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.96), 0 16px 34px rgba(36, 48, 51, 0.1);
  min-height: 270px;
}

.chat-message {
  max-width: 82%;
  padding: 14px 18px;
  border-radius: 22px;
  font-size: 0.95rem;
  line-height: 1.55;
  animation: message-in 0.3s ease-out;
}

.message-naila {
  position: relative;
  background: var(--color-white);
  color: var(--color-dark);
  align-self: flex-start;
  border-bottom-left-radius: 8px;
  border: 1px solid rgba(0, 124, 137, 0.14);
  box-shadow: 0 12px 26px rgba(36, 48, 51, 0.12);
}

.message-user {
  background: var(--color-primary);
  color: var(--color-white);
  align-self: flex-end;
  border-bottom-right-radius: 8px;
  box-shadow: 0 8px 22px rgba(0, 124, 137, 0.18);
}

/* Opciones de Pregunta en el Chat */
.chat-options {
  position: relative;
  z-index: 2;
  padding: 16px 24px 22px 24px;
  background: rgba(255, 255, 255, 0.94);
  border-top: 1px solid rgba(0, 124, 137, 0.1);
  border-radius: 0 0 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.chat-powered {
  align-self: flex-start;
  color: var(--naila-accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.chat-options-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 5px;
}

.chat-options-list {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 2px 2px 6px;
  scrollbar-width: thin;
}

.chat-option-btn {
  background: linear-gradient(180deg, var(--color-white), rgba(247, 251, 250, 0.92));
  border: 1px solid rgba(124, 58, 237, 0.2);
  color: var(--color-dark);
  padding: 11px 17px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 240ms var(--interactive-ease), box-shadow 240ms ease-out, border-color 240ms ease-out, background-color 240ms ease-out;
}

.chat-option-btn:hover {
  background: linear-gradient(180deg, rgba(241, 236, 255, 0.9), rgba(255, 255, 255, 0.96));
  border-color: rgba(124, 58, 237, 0.42);
  color: var(--naila-violet);
  transform: none;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.08), 0 6px 14px rgba(124, 58, 237, 0.12);
}

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

@media (max-width: 992px) {
  .naila-grid {
    grid-template-columns: 1fr;
  }
  .naila-intro {
    max-width: 100%;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .chat-panel {
    min-height: 500px;
    height: auto;
    border-radius: 24px;
  }

  .chat-header {
    padding: 22px 20px 14px 20px;
  }

  .chat-body {
    margin: 12px 14px;
    padding: 20px 14px;
    min-height: 260px;
  }

  .chat-message {
    max-width: 88%;
  }

  .chat-options {
    padding: 16px;
  }

  .chat-options-list {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .chat-option-btn {
    white-space: normal;
    text-align: left;
  }
}

/* 12. SECCIÓN 8: INFRAESTRUCTURA Y OPERACIÓN */
.operation-section {
  background-color: var(--color-white);
}

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

.operation-card {
  padding: 30px;
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: transform 240ms var(--interactive-ease), box-shadow 240ms ease-out, border-color 240ms ease-out;
}

.operation-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--flow-hover-shadow);
  border-color: rgba(0, 124, 137, 0.35);
}

.operation-card h3 {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.operation-card p {
  font-size: 0.95rem;
}

@media (max-width: 992px) {
  .operation-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .operation-grid {
    grid-template-columns: 1fr;
  }
}

/* 13. CTA COMERCIAL */
.business-cta-section {
  background: linear-gradient(135deg, var(--color-white) 0%, #EEF9F8 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.business-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  padding: 48px;
  border: 1px solid rgba(0, 124, 137, 0.14);
  border-radius: var(--radius-lg);
  background-color: rgba(255, 255, 255, 0.86);
  box-shadow: 0 20px 48px rgba(0, 124, 137, 0.08);
}

.business-cta-copy h2 {
  color: var(--color-primary);
  font-size: 2.2rem;
  line-height: 1.15;
  margin-bottom: 18px;
}

.business-cta-copy p {
  font-size: 1rem;
  margin-bottom: 14px;
}

.business-cta-copy .btn {
  margin-top: 14px;
}

.business-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.business-category {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 76px;
  padding: 16px;
  border: 1px solid rgba(0, 124, 137, 0.12);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  color: var(--color-dark);
  font-weight: 700;
  transition: transform 240ms var(--interactive-ease), box-shadow 240ms ease-out, border-color 240ms ease-out;
}

.business-category:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 124, 137, 0.28);
  box-shadow: 0 10px 24px rgba(0, 124, 137, 0.1);
}

.business-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background-color: var(--color-light-blue);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.business-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 992px) {
  .business-cta {
    grid-template-columns: 1fr;
    padding: 36px;
  }
}

@media (max-width: 768px) {
  .business-categories {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .business-cta {
    padding: 28px 20px;
  }

  .business-cta-copy h2 {
    font-size: 1.8rem;
  }

  .business-categories {
    grid-template-columns: 1fr;
  }
}

/* 14. SECCIÓN 10: CONTACTO / LISTA DE INTERESADOS */
.contact-section {
  background: linear-gradient(135deg, #F7FBFA 0%, #D8F3F5 100%);
  position: relative;
}

.contact-wrapper {
  max-width: 650px;
  margin: 0 auto;
}

.contact-card {
  background-color: var(--color-white);
  padding: 50px;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0, 124, 137, 0.08);
  border: 1px solid var(--color-border);
}

@media (max-width: 576px) {
  .contact-card {
    padding: 30px 20px;
  }
}

.form-group {
  margin-bottom: 20px;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 576px) {
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition);
  color: var(--color-dark);
}

.form-control:focus {
  border-color: var(--color-primary);
  background-color: var(--color-white);
  box-shadow: 0 0 0 4px rgba(0, 124, 137, 0.1);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23007C89' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 18px center;
  background-size: 16px;
  padding-right: 45px;
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
}

.contact-note {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 20px;
}

.form-consent {
  margin-top: 6px;
}

.form-consent .checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  margin-bottom: 0;
}

.form-consent .checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 0;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.form-consent .checkbox-label span {
  display: inline;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--color-dark);
}

.form-consent .checkbox-label a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-consent .checkbox-label a:hover {
  color: var(--color-primary-hover);
}

/* 14. SECCIÓN 10: CIERRE / FOOTER */
footer {
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: 80px 0 30px 0;
  border-top: 5px solid var(--color-primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-brand h2 {
  color: var(--color-white);
  font-size: 1.8rem;
  margin-bottom: 15px;
}

.footer-brand picture {
  display: block;
}

.footer-brand img {
  width: clamp(130px, 14vw, 150px);
  height: auto;
  display: block;
}

.footer-brand .footer-slogan {
  font-family: var(--font-title);
  color: var(--color-light-blue);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.footer-brand p {
  color: #A0AEC0;
  font-size: 0.95rem;
}

.footer-links h4 {
  color: var(--color-white);
  font-size: 1.1rem;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: #A0AEC0;
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--color-light-blue);
  padding-left: 5px;
}

.footer-cta h4 {
  color: var(--color-white);
  font-size: 1.1rem;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.footer-cta-buttons .btn {
  width: 100%;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-bottom p {
  color: #718096;
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: #718096;
  font-size: 0.85rem;
}

.footer-bottom-links a:hover {
  color: var(--color-light-blue);
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* 15. MODAL DE ÉXITO */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(36, 48, 51, 0.6);
  backdrop-filter: blur(5px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background-color: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  text-align: center;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--color-border);
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal-overlay.open .modal-content {
  transform: scale(1);
}

.modal-icon {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-round);
  background-color: rgba(56, 161, 105, 0.1);
  color: var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px auto;
  font-size: 2rem;
}

.modal-content h3 {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.modal-content p {
  margin-bottom: 24px;
}

/* 16. PAGINAS LEGALES */
.legal-page {
  background: linear-gradient(180deg, #F7FBFA 0%, #EFF8F7 100%);
}

.legal-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 251, 250, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 124, 137, 0.08);
}

.legal-header-inner {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.legal-logo {
  display: inline-flex;
  align-items: center;
}

.legal-logo img {
  width: clamp(122px, 14vw, 154px);
}

.legal-hero {
  padding: 56px 0 26px;
}

.legal-hero-card {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(216, 243, 245, 0.9) 0%, rgba(255, 255, 255, 0.98) 100%);
  border: 1px solid rgba(0, 124, 137, 0.12);
  box-shadow: 0 20px 40px rgba(0, 124, 137, 0.08);
}

.legal-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  padding: 8px 14px;
  border-radius: 999px;
  background-color: rgba(0, 124, 137, 0.1);
  color: var(--color-primary);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.legal-hero-card h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--color-primary);
  margin-bottom: 14px;
}

.legal-hero-card p {
  max-width: 720px;
  font-size: 1.05rem;
}

.legal-main {
  padding: 0 0 80px;
}

.legal-document {
  max-width: 900px;
  margin: 0 auto;
  padding: 44px 40px;
  background-color: var(--color-white);
  border: 1px solid rgba(0, 124, 137, 0.1);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 40px rgba(36, 48, 51, 0.06);
}

.legal-document h2 {
  font-size: 1.45rem;
  color: var(--color-primary);
  margin: 34px 0 14px;
}

.legal-document h2:first-child,
.legal-document h3:first-child,
.legal-document p:first-child {
  margin-top: 0;
}

.legal-document h3 {
  font-size: 1.15rem;
  color: var(--color-dark);
  margin: 24px 0 12px;
}

.legal-document p {
  margin-bottom: 18px;
  color: var(--color-dark);
  line-height: 1.8;
}

.legal-actions {
  max-width: 900px;
  margin: 30px auto 0;
  display: flex;
  justify-content: center;
}

.legal-footer {
  padding-top: 60px;
}

@media (max-width: 768px) {
  .legal-header-inner {
    min-height: 76px;
  }

  .legal-hero {
    padding-top: 34px;
  }

  .legal-hero-card,
  .legal-document {
    padding: 30px 22px;
  }
}