:root {
  /* ============ PALETA MODERNIZADA ============ */
  /* Azul-violeta principal (índigo moderno) */
  --azul: #4338ca;
  --azul-2: #6366f1;
  --azul-3: #eef2ff;
  --azul-soft: #f5f3ff;

  /* Verde acento (esmeralda suave) */
  --verde: #10b981;
  --verde-2: #34d399;
  --verde-3: #ecfdf5;

  /* Coral / cálido (para destacar) */
  --coral: #f97316;
  --coral-soft: #fff7ed;

  /* Crema y blancos */
  --hueso: #fef3c7;
  --hueso-2: #fffbeb;
  --crema: #fafaf9;

  /* Grises cálidos (stone) */
  --gris-1: #fafaf9;
  --gris-2: #e7e5e4;
  --gris-3: #a8a29e;
  --gris-4: #57534e;
  --tinta: #1c1917;

  /* Otros */
  --amarillo: #facc15;
  --rojo: #ef4444;

  /* Tipografía */
  --sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --serif: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Redondeces (mezcla: cards grandes, botones medios) */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 24px;

  /* Sombras más suaves */
  --sombra-suave: 0 1px 2px rgba(28,25,23,0.04), 0 2px 8px rgba(28,25,23,0.04);
  --sombra-media: 0 2px 4px rgba(28,25,23,0.06), 0 8px 24px rgba(28,25,23,0.08);
  --sombra-fuerte: 0 4px 8px rgba(28,25,23,0.08), 0 20px 40px rgba(28,25,23,0.10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--tinta);
  background: var(--crema);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: var(--azul); }

/* ============== TOP BAR ============== */
.topbar {
  background: var(--azul);
  color: #fff;
  padding: 10px 0;
  font-size: 13px;
  letter-spacing: 0.3px;
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.topbar-left { display: flex; align-items: center; gap: 10px; }
.topbar-dot {
  width: 8px;
  height: 8px;
  background: var(--verde-2);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(0,131,46,0.2);
}
.topbar-right { opacity: 0.75; }

/* ============== MODE BANNER ============== */
.mode-banner {
  display: none;
  padding: 12px 24px;
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.3px;
}
.mode-banner.estudiante { display: block; background: var(--azul-3); color: var(--azul); }
.mode-banner.emprendedor { display: block; background: var(--verde-3); color: var(--verde); }
.mode-banner strong { font-weight: 600; }
.mode-banner a {
  color: inherit;
  text-decoration: underline;
  margin-left: 8px;
  font-weight: 500;
}

/* ============== HEADER ============== */
.header {
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid var(--gris-2);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}
.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--azul) 0%, var(--azul-2) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.3px;
  position: relative;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(67,56,202,0.25);
}
.brand-mark::after { display: none; }
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-text strong {
  font-size: 15px;
  font-weight: 700;
  color: var(--azul);
  letter-spacing: -0.2px;
}
.brand-text span {
  font-size: 12px;
  color: var(--gris-4);
  letter-spacing: 0;
  font-weight: 500;
}
.nav {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav a {
  text-decoration: none;
  color: var(--gris-4);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}
.nav a:hover, .nav a.active { color: var(--azul); }
.nav-cta {
  background: var(--verde);
  color: #fff !important;
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 500;
  transition: background 0.15s;
}
.nav-cta:hover { background: var(--verde-2); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--azul);
  cursor: pointer;
  padding: 4px 8px;
}
@media (max-width: 880px) {
  .nav { display: none; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
    border-bottom: 1px solid var(--gris-2);
    box-shadow: var(--sombra-media);
  }
  .nav.open a {
    padding: 14px 24px;
    width: 100%;
    border-bottom: 1px solid var(--gris-2);
  }
  .nav.open a:last-child { border-bottom: none; }
  .nav.open .nav-cta {
    border-radius: 0;
    text-align: center;
  }
  .nav-toggle { display: block; }
}

/* ============== HERO LANDING ============== */
.hero {
  padding: 80px 24px 100px;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(0,131,46,0.06), transparent 50%),
    radial-gradient(ellipse at 10% 80%, rgba(0,48,80,0.06), transparent 50%),
    var(--crema);
  position: relative;
  overflow: hidden;
}
.hero-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 50px 24px 70px; }
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--verde-3);
  color: var(--verde);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3px;
  margin-bottom: 24px;
}
.hero-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--verde);
  border-radius: 50%;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: var(--azul);
  margin-bottom: 24px;
}
.hero h1 em {
  font-style: italic;
  color: var(--verde);
  font-weight: 500;
}
.hero p.lead {
  font-size: 19px;
  color: var(--gris-4);
  line-height: 1.6;
  margin-bottom: 36px;
  max-width: 540px;
}

/* Price tag deco */
.price-tag {
  position: relative;
  background: #fff;
  border-radius: var(--r-xl);
  padding: 36px;
  box-shadow: var(--sombra-fuerte);
  border: 1px solid var(--gris-2);
  transform: rotate(-1.5deg);
}
.price-tag::before {
  content: "";
  position: absolute;
  top: 24px;
  left: -8px;
  width: 16px;
  height: 16px;
  background: #fff;
  border: 1px solid var(--gris-2);
  border-radius: 50%;
}
.price-tag-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px dashed var(--gris-2);
  font-size: 14px;
}
.price-tag-row:last-of-type { border-bottom: none; }
.price-tag-row strong { color: var(--azul); font-weight: 500; }
.price-tag-row span { color: var(--gris-4); font-variant-numeric: tabular-nums; }
.price-tag-label {
  font-family: var(--serif);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gris-3);
  margin-bottom: 16px;
}
.price-tag-total {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 2px solid var(--azul);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.price-tag-total strong {
  font-family: var(--serif);
  font-size: 13px;
  color: var(--azul);
  letter-spacing: 0.5px;
}
.price-tag-total .num {
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 600;
  color: var(--verde);
  font-variant-numeric: tabular-nums;
  letter-spacing: -1px;
}
.price-tag-question {
  position: absolute;
  top: -16px;
  right: 24px;
  background: var(--amarillo);
  color: var(--tinta);
  padding: 8px 16px;
  border-radius: 999px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.3px;
  transform: rotate(4deg);
  box-shadow: 0 4px 12px rgba(245,200,66,0.4);
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.hero-stat {
  border-left: 3px solid var(--verde);
  padding-left: 14px;
}
.hero-stat strong {
  display: block;
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  color: var(--azul);
  line-height: 1;
  letter-spacing: -0.5px;
}
.hero-stat span {
  font-size: 12px;
  color: var(--gris-4);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

/* ============== PRESENTACION ============== */
.presentacion {
  padding: 80px 24px;
  background: #fff;
  border-top: 1px solid var(--gris-2);
}
.presentacion-inner {
  max-width: 1080px;
  margin: 0 auto;
}
.presentacion-eyebrow {
  text-align: center;
  margin-bottom: 36px;
}
.presentacion-eyebrow span {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--gris-3);
  text-transform: uppercase;
  margin-bottom: 8px;
  font-weight: 500;
}
.presentacion-eyebrow h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 38px);
  color: var(--azul);
  letter-spacing: -0.5px;
}
.presentacion-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}
.presentacion-grid .pres-bloque.destacado {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--hueso-2) 0%, var(--crema) 100%);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
  padding: 32px;
}
.presentacion-grid .pres-bloque.destacado .pres-bloque-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin-bottom: 0;
}
.presentacion-grid .pres-bloque.destacado .pres-bloque-icon svg {
  width: 28px;
  height: 28px;
}
.presentacion-grid .pres-bloque.destacado h3 {
  font-size: 26px;
  margin-bottom: 14px;
}
.presentacion-grid .pres-bloque.destacado p {
  font-size: 15px;
  margin-bottom: 12px;
}
.presentacion-grid .pres-bloque.destacado p:last-child {
  margin-bottom: 0;
}
.presentacion-grid .pres-bloque.destacado .pres-bloque-text {
  min-width: 0;
}
@media (max-width: 820px) {
  .presentacion-grid { grid-template-columns: 1fr; gap: 20px; }
  .presentacion-grid .pres-bloque.destacado {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 28px;
  }
}
.pres-bloque {
  background: var(--crema);
  border-radius: var(--r-lg);
  padding: 28px;
  border: 1px solid var(--gris-2);
  position: relative;
}
.pres-bloque-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--verde-3);
  color: var(--verde);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.pres-bloque-icon svg { width: 22px; height: 22px; }
.pres-bloque-label {
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--verde);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 6px;
}
.pres-bloque h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 22px;
  color: var(--azul);
  letter-spacing: -0.3px;
  margin-bottom: 12px;
  line-height: 1.2;
}
.pres-bloque p {
  font-size: 14.5px;
  color: var(--gris-4);
  line-height: 1.65;
  margin: 0;
}
.pres-bloque.azul .pres-bloque-icon {
  background: var(--azul-3);
  color: var(--azul);
}
.pres-bloque.azul .pres-bloque-label { color: var(--azul); }

.pres-cita {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
  padding: 36px 24px;
  position: relative;
}
.pres-cita::before {
  content: """;
  font-family: var(--serif);
  font-size: 96px;
  color: var(--verde);
  opacity: 0.18;
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  line-height: 1;
}
.pres-cita blockquote {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2.5vw, 26px);
  line-height: 1.45;
  color: var(--azul);
  letter-spacing: -0.3px;
  margin: 0;
  position: relative;
  z-index: 1;
}
.pres-cita cite {
  display: block;
  margin-top: 18px;
  font-family: var(--sans);
  font-style: normal;
  font-size: 13px;
  letter-spacing: 1.5px;
  color: var(--gris-3);
  text-transform: uppercase;
  font-weight: 500;
}

.pres-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  border-top: 1px solid var(--gris-2);
  padding-top: 36px;
}
@media (max-width: 680px) {
  .pres-stats { grid-template-columns: 1fr; gap: 12px; }
}
.pres-stat {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px 4px;
}
.pres-stat-num {
  font-family: var(--serif);
  font-size: 48px;
  font-weight: 600;
  color: var(--verde);
  line-height: 1;
  letter-spacing: -2px;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.pres-stat-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.pres-stat-text strong {
  font-size: 14px;
  color: var(--azul);
  font-weight: 600;
}
.pres-stat-text span {
  font-size: 13px;
  color: var(--gris-4);
  line-height: 1.4;
}

/* ============== DOORS ============== */
.doors {
  padding: 60px 24px 80px;
  background: #fff;
  border-top: 1px solid var(--gris-2);
}
.doors-inner { max-width: 1180px; margin: 0 auto; }
.doors-title {
  text-align: center;
  margin-bottom: 36px;
}
.doors-title span {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--gris-3);
  text-transform: uppercase;
  margin-bottom: 8px;
  font-weight: 500;
}
.doors-title h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 36px);
  color: var(--azul);
  letter-spacing: -0.5px;
}
.doors-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 760px) { .doors-grid { grid-template-columns: 1fr; } }
.door {
  border: 1.5px solid var(--gris-2);
  border-radius: var(--r-lg);
  padding: 32px;
  transition: all 0.2s;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}
.door::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}
.door-a::before { background: var(--azul); }
.door-b::before { background: var(--verde); }
.door:hover {
  box-shadow: var(--sombra-media);
  transform: translateY(-2px);
}
.door-a:hover { border-color: var(--azul); }
.door-b:hover { border-color: var(--verde); }
.door-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.door-a .door-icon { background: var(--azul-3); color: var(--azul); }
.door-b .door-icon { background: var(--verde-3); color: var(--verde); }
.door h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 22px;
  color: var(--azul);
  letter-spacing: -0.3px;
}
.door p {
  color: var(--gris-4);
  font-size: 15px;
  line-height: 1.6;
}
.door ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 4px 0;
}
.door ul li {
  font-size: 14px;
  color: var(--gris-4);
  padding-left: 22px;
  position: relative;
}
.door ul li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--verde);
  font-weight: 600;
}
.door-btn {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s;
  cursor: pointer;
  border: none;
  width: 100%;
  font-family: var(--sans);
}
.door-a .door-btn { background: var(--azul); color: #fff; }
.door-a .door-btn:hover { background: var(--azul-2); }
.door-b .door-btn { background: var(--verde); color: #fff; }
.door-b .door-btn:hover { background: var(--verde-2); }

/* ============== INDICE LANDING ============== */
.indice-section {
  padding: 80px 24px;
  background: var(--crema);
}
.indice-inner { max-width: 1080px; margin: 0 auto; }
.indice-header {
  text-align: center;
  margin-bottom: 50px;
}
.indice-header span {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--gris-3);
  text-transform: uppercase;
  font-weight: 500;
}
.indice-header h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 38px);
  color: var(--azul);
  letter-spacing: -0.5px;
  margin-top: 8px;
}
.indice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.indice-card {
  background: #fff;
  border: 1px solid var(--gris-2);
  border-radius: var(--r-lg);
  padding: 28px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
}
.indice-card:hover {
  border-color: var(--verde);
  box-shadow: var(--sombra-media);
  transform: translateY(-2px);
}
.indice-card .num {
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 1.5px;
  color: var(--gris-3);
  font-weight: 600;
}
.indice-card h3 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--azul);
  letter-spacing: -0.3px;
  line-height: 1.25;
}
.indice-card p {
  font-size: 14px;
  color: var(--gris-4);
  line-height: 1.55;
  margin-bottom: auto;
}
.indice-card .tool-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--verde-3);
  color: var(--verde);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  width: max-content;
}
.indice-card .tool-badge::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--verde);
  border-radius: 50%;
}
.indice-card .arrow {
  position: absolute;
  top: 28px;
  right: 28px;
  color: var(--gris-3);
  font-size: 18px;
  transition: all 0.2s;
}
.indice-card:hover .arrow {
  color: var(--verde);
  transform: translateX(4px);
}

/* ============== CTA BANNER ============== */
.cta-banner {
  padding: 70px 24px;
  background: var(--azul);
  color: #fff;
}
.cta-banner-inner {
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
}
.cta-banner h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 38px);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.cta-banner h2 em {
  font-style: italic;
  color: var(--amarillo);
}
.cta-banner p {
  font-size: 16px;
  opacity: 0.85;
  max-width: 580px;
  margin: 0 auto 28px;
  line-height: 1.6;
}
.cta-banner-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-btn {
  padding: 14px 26px;
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
}
.cta-btn.primary {
  background: var(--verde);
  color: #fff;
}
.cta-btn.primary:hover { background: var(--verde-2); }
.cta-btn.outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
}
.cta-btn.outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.5);
}

/* ============== FOOTER ============== */
.footer {
  background: var(--azul);
  color: #fff;
  padding: 50px 24px 24px;
}
.footer.no-cta { margin-top: 60px; }
.footer-inner { max-width: 1180px; margin: 0 auto; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}
@media (max-width: 700px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}
.footer-brand h4 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 8px;
}
.footer-brand p {
  opacity: 0.75;
  font-size: 13px;
  line-height: 1.6;
  max-width: 360px;
}
.footer-col h5 {
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 12px;
  font-weight: 600;
}
.footer-col ul { list-style: none; }
.footer-col li { padding: 3px 0; }
.footer-col a {
  font-size: 13px;
  color: #fff;
  opacity: 0.85;
  text-decoration: none;
  transition: opacity 0.15s;
}
.footer-col a:hover { opacity: 1; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  opacity: 0.7;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============== SUBPAGE: HERO ============== */
.subhero {
  padding: 50px 24px 40px;
  background: linear-gradient(180deg, var(--hueso-2) 0%, var(--crema) 100%);
  border-bottom: 1px solid var(--gris-2);
}
.subhero-inner {
  max-width: 880px;
  margin: 0 auto;
}
.subhero-crumb {
  font-size: 13px;
  color: var(--gris-3);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.subhero-crumb a {
  color: var(--gris-4);
  text-decoration: none;
}
.subhero-crumb a:hover { color: var(--azul); }
.subhero-step {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--gris-2);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--azul);
  font-weight: 500;
  letter-spacing: 0.3px;
  margin-bottom: 20px;
}
.subhero-step .dot {
  width: 6px;
  height: 6px;
  background: var(--verde);
  border-radius: 50%;
}
.subhero h1 {
  font-weight: 700;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: var(--tinta);
  margin-bottom: 16px;
}
.subhero h1 em {
  font-style: normal;
  color: var(--azul);
  font-weight: 700;
}
.subhero p {
  font-size: 18px;
  color: var(--gris-4);
  line-height: 1.6;
  max-width: 680px;
}
.progress-bar {
  margin-top: 28px;
  height: 4px;
  background: var(--gris-2);
  border-radius: 2px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--verde);
  transition: width 0.4s;
}
.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: 0.5px;
  color: var(--gris-3);
  margin-top: 8px;
  font-weight: 500;
}

/* ============== SECTION GENERIC ============== */
.section {
  padding: 50px 24px;
  scroll-margin-top: 80px;
}
.section-inner {
  max-width: 880px;
  margin: 0 auto;
}
.section h2 {
  font-weight: 700;
  font-size: clamp(26px, 3.5vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.8px;
  color: var(--tinta);
  margin-bottom: 18px;
}
.section h2 em {
  font-style: normal;
  color: var(--azul);
  font-weight: 700;
}
.section h3 {
  font-weight: 600;
  font-size: 21px;
  color: var(--tinta);
  margin: 32px 0 14px;
  letter-spacing: -0.4px;
}
.section p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--tinta);
  margin-bottom: 16px;
}
.section p.intro {
  font-size: 18px;
  color: var(--gris-4);
  line-height: 1.7;
  margin-bottom: 28px;
}
.section ul, .section ol {
  margin: 16px 0 16px 24px;
  line-height: 1.75;
}
.section li { margin-bottom: 6px; }

/* Callouts y bloques */
.principio {
  background: var(--azul-3);
  border-left: 4px solid var(--azul);
  padding: 20px 24px;
  margin: 28px 0;
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
.principio-label {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--azul);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 8px;
}
.principio p {
  font-family: var(--serif);
  font-style: italic;
  font-size: 18px;
  color: var(--azul);
  line-height: 1.5;
  margin: 0;
}
.principio.verde {
  background: var(--verde-3);
  border-left-color: var(--verde);
}
.principio.verde .principio-label, .principio.verde p { color: var(--verde); }

/* Page nav (anterior/siguiente al pie) */
.page-nav {
  border-top: 1px solid var(--gris-2);
  padding: 40px 24px 60px;
  background: var(--crema);
}
.page-nav-inner {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 600px) { .page-nav-inner { grid-template-columns: 1fr; } }
.page-nav a {
  background: #fff;
  border: 1px solid var(--gris-2);
  border-radius: var(--r-md);
  padding: 20px 24px;
  text-decoration: none;
  color: inherit;
  transition: all 0.15s;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-nav a:hover {
  border-color: var(--verde);
  box-shadow: var(--sombra-suave);
}
.page-nav a.next { align-items: flex-end; text-align: right; }
.page-nav a .label {
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--gris-3);
  text-transform: uppercase;
  font-weight: 600;
}
.page-nav a .title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--azul);
}

/* Selection */
::selection { background: var(--verde); color: #fff; }

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

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.5s ease-out; }