/* ==========================================================================
   NATURALSLIM ECUADOR S.A.S. · MODELO 1: EDITORIAL AWWWARDS
   Paleta: Verde vida (#16A34A / #15803D), Marfil (#F8FAFC), Carbón (#0B0F19), Ámbar (#F59E0B)
   Cero Emojis · Tipografía Técnica · WCAG AAA
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TIPOGRAFÍA Y FUENTES LOCALES
   -------------------------------------------------------------------------- */
@font-face {
  font-family: 'Instrument Serif';
  src: url('fonts/instrument-serif-400-italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('fonts/inter-400-normal.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('fonts/inter-500-normal.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('fonts/inter-600-normal.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter Tight';
  src: url('fonts/inter-tight-700-normal.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter Tight';
  src: url('fonts/inter-tight-800-normal.woff2') format('woff2');
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   2. VARIABLES Y SISTEMA DE DISEÑO
   -------------------------------------------------------------------------- */
:root {
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter Tight', 'Inter', sans-serif;

  /* Colores */
  --color-bg: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-surface-subtle: #F1F5F9;
  --color-surface-alt: #E2E8F0;
  --color-border: #E2E8F0;
  --color-border-dark: #CBD5E1;

  --color-dark: #0B0F19;
  --color-dark-surface: #111827;
  --color-dark-border: #1F2937;

  --color-text: #0F172A;
  --color-text-muted: #475569;
  --color-text-light: #64748B;
  --color-text-inverse: #F8FAFC;

  --color-primary: #15803D;
  --color-primary-light: #16A34A;
  --color-primary-dark: #064E3B;
  --color-primary-subtle: rgba(22, 163, 74, 0.08);

  --color-accent: #D97706;
  --color-accent-light: #F59E0B;
  --color-accent-subtle: rgba(245, 158, 11, 0.12);

  --color-water: #0284C7;
  --color-water-subtle: rgba(2, 132, 199, 0.08);

  /* Sombras sutiles */
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.06);

  /* Espaciados y Radios */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   3. RESET Y BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button, input {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.skip-link {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 99999;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
  transition: transform var(--transition-fast);
  font-weight: 600;
  font-size: 0.875rem;
}

.skip-link:focus {
  transform: translateY(0);
}

/* Fondo reticular biometabólico */
.bio-grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(22, 163, 74, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(245, 158, 11, 0.03) 0%, transparent 40%),
    linear-gradient(to right, rgba(15, 23, 42, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 60px 60px, 60px 60px;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container--narrow {
  max-width: 860px;
}

.font-serif {
  font-family: var(--font-serif);
}

.italic {
  font-style: italic;
}

.text-accent {
  color: var(--color-primary-light);
}

/* --------------------------------------------------------------------------
   4. COMPONENTES GLOBALES Y BOTONES
   -------------------------------------------------------------------------- */
.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  border: 1px solid rgba(22, 163, 74, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  background-color: var(--color-primary-light);
  border-radius: 50%;
  position: relative;
  display: inline-block;
}

.pulse-indicator::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  opacity: 0.4;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0% { transform: scale(0.8); opacity: 0.7; }
  50% { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(0.8); opacity: 0; }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn--sm {
  padding: 8px 14px;
  font-size: 0.8125rem;
}

.btn--lg {
  padding: 14px 24px;
  font-size: 0.9375rem;
}

.btn--xl {
  padding: 16px 28px;
  font-size: 1rem;
}

.btn--primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(21, 128, 61, 0.25);
}

.btn--primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(21, 128, 61, 0.32);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border-dark);
}

.btn--outline:hover {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn--ghost {
  background-color: rgba(255, 255, 255, 0.8);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background-color: #FFFFFF;
  border-color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   5. HEADER Y DEMO BAR REGLAMENTARIA (SIMCODEC)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.demo-bar {
  background: #0B0F19;
  color: #94A3B8;
  font-size: 0.75rem;
  line-height: 1.4;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 6px 0;
}

.demo-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.demo-bar__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.demo-bar__tag {
  display: inline-block;
  padding: 2px 6px;
  background: rgba(245, 158, 11, 0.15);
  color: #FBBF24;
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 3px;
}

.demo-bar__text {
  color: #CBD5E1;
}

.demo-bar__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #38BDF8;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.demo-bar__link:hover {
  color: #7DD3FC;
  text-decoration: underline;
}

.demo-bar-modelos {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.demo-bar-modelos__label {
  color: #64748B;
  font-weight: 500;
}

.demo-bar-modelos__enlace {
  color: #94A3B8;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.demo-bar-modelos__enlace:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
}

.demo-bar-modelos__enlace.actual {
  color: #10B981;
  background: rgba(16, 185, 129, 0.15);
  font-weight: 600;
}

.header-main {
  padding: 12px 0;
}

.header-main__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand__img {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.brand__badge {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-dark);
  background: rgba(22, 163, 74, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(22, 163, 74, 0.2);
}

.nav-desktop__list {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-desktop__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  position: relative;
  padding: 4px 0;
}

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

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* --------------------------------------------------------------------------
   6. HERO EDITORIAL MONUMENTAL
   -------------------------------------------------------------------------- */
.hero {
  padding: 64px 0 40px;
  position: relative;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.hero__kicker {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4.2vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--color-dark);
  margin-bottom: 24px;
}

.hero__lead {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--color-text-muted);
  max-width: 580px;
  margin-bottom: 32px;
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero__trust {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.trust-metric {
  display: flex;
  flex-direction: column;
}

.trust-metric__num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

.trust-metric__label {
  font-size: 0.75rem;
  color: var(--color-text-light);
  line-height: 1.3;
}

.trust-divider {
  width: 1px;
  height: 36px;
  background-color: var(--color-border);
}

/* Tarjeta Hero Visual */
.hero-card-stack {
  position: relative;
}

.hero-card--main {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.hero-card--main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-light));
}

.hero-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.badge-bio {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(22, 163, 74, 0.2);
}

.hero-card__code {
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.hero-card__image-wrap {
  background: radial-gradient(circle, #F1F5F9 0%, #E2E8F0 100%);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
}

.hero-card__img {
  max-height: 260px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-smooth);
}

.hero-card--main:hover .hero-card__img {
  transform: scale(1.03);
}

.hero-card__name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.hero-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.hero-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
  font-size: 0.8125rem;
}

.hero-card__stat {
  color: var(--color-text-light);
}

.hero-card__val {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-primary);
}

/* Tarjetas flotantes */
.hero-card-floating {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 260px;
  z-index: 2;
}

.hero-card-floating--top {
  top: -24px;
  right: -20px;
}

.hero-card-floating--bottom {
  bottom: -24px;
  left: -20px;
}

.icon-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon-circle--vital {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

.icon-circle--water {
  background: var(--color-water-subtle);
  color: var(--color-water);
}

.hero-card-floating__text {
  display: flex;
  flex-direction: column;
  font-size: 0.75rem;
  line-height: 1.3;
}

.hero-card-floating__text strong {
  font-family: var(--font-display);
  color: var(--color-dark);
  font-size: 0.8125rem;
}

.hero-card-floating__text span {
  color: var(--color-text-light);
}

/* Hero Strip */
.hero-strip {
  margin-top: 48px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 14px 0;
}

.hero-strip__inner {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 20px;
}

.hero-strip__item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.hero-strip__item svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   7. SECCIONES: MANIFIESTO CIENTÍFICO
   -------------------------------------------------------------------------- */
.section {
  padding: 80px 0;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 56px;
}

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

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.2vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--color-dark);
  margin-bottom: 20px;
}

.section-desc {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.pillar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(22, 163, 74, 0.4);
}

.pillar-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.pillar-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.pillar-card__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 20px;
}

.pillar-card__meta {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
}

/* --------------------------------------------------------------------------
   8. EVALUACIÓN INTERACTIVA BIOMETABÓLICA
   -------------------------------------------------------------------------- */
.evaluation-section {
  background: linear-gradient(180deg, #F8FAFC 0%, #EFF6FF 50%, #F8FAFC 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.eval-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  align-items: start;
}

.eval-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.eval-card__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.eval-card__icon-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.eval-card--water .eval-card__icon-badge {
  background: var(--color-water-subtle);
  color: var(--color-water);
}

.eval-card--nervous .eval-card__icon-badge {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.eval-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
}

.eval-card__sub {
  font-size: 0.8125rem;
  color: var(--color-text-light);
}

.eval-card__intro {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

/* Calculadora de agua */
.calc-form .form-group-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.label-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.toggle-group {
  display: inline-flex;
  background: var(--color-surface-subtle);
  padding: 3px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.btn-toggle {
  border: none;
  background: transparent;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.btn-toggle.active {
  background: #FFFFFF;
  color: var(--color-dark);
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 24px;
}

.input-unit-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  margin-top: 8px;
}

.input-styled {
  width: 100%;
  padding: 12px 48px 12px 16px;
  font-size: 1.25rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--color-dark);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast);
}

.input-styled:focus {
  border-color: var(--color-water);
  background: #FFFFFF;
}

.input-unit-suffix {
  position: absolute;
  right: 16px;
  font-weight: 600;
  color: var(--color-text-light);
  font-size: 0.875rem;
}

.input-helper {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 6px;
  display: block;
}

.calc-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.calc-result-box {
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.calc-result-label {
  font-size: 0.75rem;
  color: var(--color-text-light);
  display: block;
  margin-bottom: 4px;
}

.calc-result-number {
  display: flex;
  flex-direction: column;
}

.num-big {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-water);
  line-height: 1;
  margin-bottom: 2px;
}

.num-unit {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.water-tip {
  display: flex;
  gap: 10px;
  padding: 12px;
  background: rgba(2, 132, 199, 0.06);
  border: 1px solid rgba(2, 132, 199, 0.15);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: #0369A1;
  line-height: 1.4;
}

.water-tip svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* Test de Sistema Nervioso */
.test-questions {
  border: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.test-question-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 14px;
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.test-question-row:hover {
  border-color: var(--color-border-dark);
}

.test-q-text {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.35;
}

.test-q-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.radio-label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 4px 10px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.radio-label:hover {
  border-color: var(--color-primary-light);
}

.radio-label input:checked + span {
  color: var(--color-primary);
  font-weight: 700;
}

.diagnosis-box {
  background: #FFFFFF;
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.08);
}

.diagnosis-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  margin-bottom: 8px;
}

.diagnosis-box.excitado .diagnosis-badge {
  background: rgba(245, 158, 11, 0.15);
  color: #B45309;
}

.diagnosis-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.diagnosis-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 12px;
}

.diagnosis-plan {
  font-size: 0.8125rem;
  padding: 10px 12px;
  background: var(--color-surface-subtle);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  line-height: 1.4;
  border-left: 3px solid var(--color-primary);
}

/* --------------------------------------------------------------------------
   9. CATÁLOGO EDITORIAL DE PRODUCTOS Y FORMULACIONES
   -------------------------------------------------------------------------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(22, 163, 74, 0.4);
}

.product-card--featured {
  background: linear-gradient(180deg, #FFFFFF 0%, #F0FDF4 100%);
  border-color: rgba(22, 163, 74, 0.3);
}

.product-card__badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-subtle);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.product-card--featured .product-card__badge {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.product-card__img-wrap {
  background: radial-gradient(circle, #F8FAFC 0%, #F1F5F9 100%);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  height: 220px;
}

.product-card__img {
  max-height: 180px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-smooth);
}

.product-card:hover .product-card__img {
  transform: scale(1.05);
}

.product-card__content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-card__cat {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  display: block;
  margin-bottom: 4px;
}

.product-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
  line-height: 1.25;
}

.product-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 18px;
  flex-grow: 1;
}

.product-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 0.8125rem;
  color: var(--color-text);
}

.product-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.35;
}

.product-card__features svg {
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px dashed var(--color-border);
  gap: 12px;
}

.product-card__origin {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   10. PROGRAMA PERSONAL Y CONSULTORÍA
   -------------------------------------------------------------------------- */
.program-section {
  background: var(--color-dark);
  color: #F8FAFC;
  position: relative;
  overflow: hidden;
}

.program-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(22, 163, 74, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.program-banner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.program-banner .badge-tag {
  background: rgba(22, 163, 74, 0.2);
  color: #4ADE80;
  border-color: rgba(74, 222, 128, 0.3);
}

.program-banner__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.2vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.program-banner__desc {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: #94A3B8;
  margin-bottom: 32px;
}

.program-reasons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 36px;
}

.reason-item {
  display: flex;
  gap: 12px;
}

.reason-item__num {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: #4ADE80;
  line-height: 1;
  padding-top: 2px;
}

.reason-item__body strong {
  display: block;
  font-size: 0.9375rem;
  color: #FFFFFF;
  margin-bottom: 4px;
}

.reason-item__body p {
  font-size: 0.8125rem;
  color: #94A3B8;
  line-height: 1.45;
}

.program-banner__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.program-contact-info {
  font-size: 0.8125rem;
  color: #64748B;
}

/* Quote card lateral */
.quote-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  margin-bottom: 24px;
}

.quote-card__quote-mark {
  font-family: var(--font-serif);
  font-size: 4rem;
  line-height: 0.8;
  color: #4ADE80;
  opacity: 0.4;
  margin-bottom: 12px;
}

.quote-card__quote {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  line-height: 1.5;
  color: #E2E8F0;
  margin-bottom: 20px;
}

.quote-card__author strong {
  display: block;
  font-size: 0.9375rem;
  color: #FFFFFF;
}

.quote-card__author span {
  font-size: 0.8125rem;
  color: #94A3B8;
}

.compliance-notice {
  display: flex;
  gap: 10px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  color: #64748B;
  line-height: 1.4;
}

.compliance-notice svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: #94A3B8;
}

/* --------------------------------------------------------------------------
   11. BIBLIOTECA EDITORIAL FRANK SUÁREZ
   -------------------------------------------------------------------------- */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.book-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal);
}

.book-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.book-card__tag {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border: 1px solid rgba(22, 163, 74, 0.2);
}

.book-card__cover {
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  overflow: hidden;
}

.book-card__img {
  max-height: 190px;
  width: auto;
  object-fit: contain;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
  border-radius: 4px;
}

.book-cover-placeholder {
  width: 140px;
  height: 190px;
  background: #1E293B;
  color: #FFFFFF;
  padding: 16px 12px;
  border-radius: 4px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-left: 6px solid var(--color-primary);
}

.book-card__cover--alt2 .book-cover-placeholder {
  background: #064E3B;
  border-left-color: var(--color-accent-light);
}

.placeholder-tag {
  font-size: 0.5625rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #94A3B8;
}

.book-cover-placeholder h4 {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  line-height: 1.2;
}

.book-cover-placeholder p {
  font-size: 0.625rem;
  color: #CBD5E1;
  line-height: 1.25;
}

.book-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 4px;
}

.book-card__subtitle {
  font-size: 0.8125rem;
  color: var(--color-primary);
  font-weight: 600;
  display: block;
  margin-bottom: 12px;
}

.book-card__text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 20px;
  flex-grow: 1;
}

.book-card__specs {
  display: flex;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   12. FAQ ACCORDION
   -------------------------------------------------------------------------- */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item[open] {
  border-color: rgba(22, 163, 74, 0.4);
}

.faq-item__question {
  padding: 18px 24px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--color-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  user-select: none;
}

.faq-item__question::-webkit-details-marker {
  display: none;
}

.faq-item__question svg {
  transition: transform var(--transition-fast);
  color: var(--color-text-light);
  flex-shrink: 0;
}

.faq-item[open] .faq-item__question svg {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-item__answer {
  padding: 0 24px 20px;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   13. CTA EDITORIAL
   -------------------------------------------------------------------------- */
.cta-editorial {
  background: linear-gradient(180deg, #F8FAFC 0%, #F0FDF4 100%);
  border-top: 1px solid var(--color-border);
}

.cta-editorial__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 3.8vw, 3.6rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--color-dark);
  margin-bottom: 20px;
}

.cta-editorial__desc {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto 36px;
}

.cta-editorial__buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* --------------------------------------------------------------------------
   14. FOOTER CORPORATIVO Y BARRA SIMCODEC
   -------------------------------------------------------------------------- */
.site-footer {
  background: #0B0F19;
  color: #94A3B8;
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
}

.footer-tagline {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #94A3B8;
  margin-bottom: 20px;
}

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

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: #CBD5E1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-primary);
  color: #FFFFFF;
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #FFFFFF;
  margin-bottom: 18px;
}

.footer-links, .footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.875rem;
}

.footer-links a {
  color: #94A3B8;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #4ADE80;
}

.footer-contact-list li {
  line-height: 1.5;
  font-size: 0.8125rem;
}

.footer-contact-list strong {
  color: #E2E8F0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-contact-list a {
  color: #38BDF8;
}

.footer-contact-list a:hover {
  text-decoration: underline;
}

/* Footer Demo Bar */
.footer-demo-bar {
  background: #060911;
  padding: 16px 0;
  font-size: 0.75rem;
  line-height: 1.5;
}

.footer-demo-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-demo-bar__text {
  color: #94A3B8;
}

.footer-demo-bar__text a {
  color: #38BDF8;
  margin-left: 6px;
}

.footer-demo-bar__text a:hover {
  text-decoration: underline;
}

.footer-demo-bar__models {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  color: #64748B;
}

.footer-demo-bar__models a {
  color: #94A3B8;
  padding: 2px 6px;
  border-radius: 4px;
}

.footer-demo-bar__models a:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
}

.footer-demo-bar__models a.actual {
  color: #10B981;
  background: rgba(16, 185, 129, 0.15);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   15. RESPONSIVE DESIGN (DESKTOP 1440PX & MOBILE 390PX)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .program-banner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

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

  .hero-card-floating--top {
    right: 0;
  }

  .hero-card-floating--bottom {
    left: 0;
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .header-actions .btn--outline {
    display: none;
  }

  .hero {
    padding: 36px 0 24px;
  }

  .hero__title {
    font-size: 2.25rem;
  }

  .hero__lead {
    font-size: 1rem;
  }

  .hero__trust {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .trust-divider {
    display: none;
  }

  .hero-card-floating {
    position: static;
    margin-top: 12px;
    max-width: 100%;
  }

  .program-reasons {
    grid-template-columns: 1fr;
  }

  .calc-results {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-demo-bar__inner, .demo-bar__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}