/* =============================================
   ASEDUC — Estilos principales
   Paleta: #164194 (azul) | #009FE3 (celeste)
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;900&display=swap');

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

:root {
  --azul:       #164194;
  --celeste:    #009FE3;
  --blanco:     #ffffff;
  --gris-claro: #f5f7fc;
  --gris-med:   #e8edf7;
  --gris-texto: #555e6d;
  --negro:      #0d1321;
  --font-display: 'Inter', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --transition:   0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-body);
  color: var(--negro);
  background: var(--blanco);
  line-height: 1.6;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---- TIPOGRAFÍA ---- */
.display-xl {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.display-lg {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
}
.display-md {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
}
.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--celeste);
  display: block;
  margin-bottom: 1rem;
}
.lead {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  font-weight: 300;
  color: var(--gris-texto);
  line-height: 1.8;
  max-width: 620px;
}
.divider-accent {
  width: 48px;
  height: 3px;
  background: var(--celeste);
  border-radius: 2px;
  margin: 1.2rem 0 1.8rem;
}
.divider-accent.centered { margin: 1.2rem auto 1.8rem; }
.divider-accent.white { background: rgba(255,255,255,0.5); }

/* ---- LAYOUT ---- */
.container {
  width: min(1140px, 92vw);
  margin: 0 auto;
}
.section { padding: 7rem 0; }
.section-sm { padding: 4rem 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* ---- NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 2rem;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 24px rgba(22,65,148,0.08);
}
.navbar.dark-nav { background: transparent; }
.navbar.dark-nav.scrolled {
  background: rgba(255,255,255,0.97);
}

.nav-logo {
  display: flex;
  align-items: center;
}
.nav-logo a {
  position: relative;
  display: block;
  line-height: 0;
}
.logo-white {
  height: 44px;
  width: auto;
  display: block;
  opacity: 1;
  transition: opacity var(--transition);
}
.logo-dark {
  height: 44px;
  width: auto;
  position: absolute;
  top: 0; left: 0;
  opacity: 0;
  transition: opacity var(--transition);
}
.navbar.scrolled .logo-white { opacity: 0; }
.navbar.scrolled .logo-dark  { opacity: 1; }
.navbar:not(.dark-nav) .logo-white { opacity: 0; }
.navbar:not(.dark-nav) .logo-dark  { opacity: 1; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.nav-menu a {
  font-size: 14px;
  font-weight: 500;
  color: var(--negro);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition);
}
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1.5px;
  background: var(--celeste);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.nav-menu a:hover::after, .nav-menu a.active::after { transform: scaleX(1); }
.nav-menu a:hover { color: var(--celeste); }
.navbar.dark-nav:not(.scrolled) .nav-menu a { color: rgba(255,255,255,0.9); }
.navbar.dark-nav:not(.scrolled) .nav-menu a:hover { color: white; }

.nav-social {
  display: flex;
  gap: 8px;
  align-items: center;
}
.nav-social a {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1.5px solid var(--gris-med);
  display: flex; align-items: center; justify-content: center;
  color: var(--azul);
  font-size: 15px;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.nav-social a:hover { background: var(--azul); border-color: var(--azul); color: white; }
.navbar.dark-nav:not(.scrolled) .nav-social a { border-color: rgba(255,255,255,0.3); color: white; }
.navbar.dark-nav:not(.scrolled) .nav-social a:hover { background: rgba(255,255,255,0.15); }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.02em;
}
.btn-solid {
  background: var(--celeste);
  color: white;
  border-color: var(--celeste);
}
.btn-solid:hover { background: #0088c9; border-color: #0088c9; transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.5);
}
.btn-outline:hover { background: white; color: var(--azul); border-color: white; }
.btn-outline-dark {
  background: transparent;
  color: var(--azul);
  border-color: var(--azul);
}
.btn-outline-dark:hover { background: var(--azul); color: white; }
.btn-lg { padding: 16px 36px; font-size: 15px; }

/* CTA de asociarse en el navbar */
.nav-actions { display: flex; align-items: center; gap: 1.1rem; }
.nav-cta { padding: 9px 20px; font-size: 13px; box-shadow: 0 4px 14px rgba(0,159,227,0.35); }
.nav-cta:hover { transform: translateY(-1px); }

/* ---- MENÚ DE CELULAR ---- */
/* Botón ☰ y panel: ocultos en escritorio, se activan en el @media de 1100px. */
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  background: none;
  border: none;
  border-radius: 4px;
  color: var(--azul);
  font-size: 26px;
  cursor: pointer;
  transition: color var(--transition);
}
.navbar.dark-nav:not(.scrolled) .nav-toggle { color: white; }

.nav-panel {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999; /* debajo del navbar, que queda visible con la ✕ */
  padding: calc(64px + 2.5rem) 4vw 2rem;
  background: linear-gradient(160deg, var(--azul) 0%, #0d2a66 100%);
  flex-direction: column;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity var(--transition), transform var(--transition), visibility 0s linear 0.35s;
}
.nav-panel.open {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity var(--transition), transform var(--transition), visibility 0s;
}
.nav-panel-menu li + li { border-top: 1px solid rgba(255,255,255,0.12); }
.nav-panel-menu a {
  display: block;
  padding: 1rem 0;
  font-size: 22px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition);
}
.nav-panel-menu a:hover { color: white; }
.nav-panel-menu a.active { color: var(--celeste); }
.nav-panel-cta { justify-content: center; margin-top: 2rem; }
.nav-panel-social { display: flex; gap: 12px; justify-content: center; margin-top: 2rem; }
.nav-panel-social a {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.3);
  display: flex; align-items: center; justify-content: center;
  color: white;
  font-size: 18px;
  transition: background var(--transition);
}
.nav-panel-social a:hover { background: rgba(255,255,255,0.15); }

/* Con el menú abierto el navbar se funde con el panel: transparente y logo blanco. */
.navbar.dark-nav.menu-open { background: transparent; box-shadow: none; backdrop-filter: none; }
.navbar.menu-open .logo-white { opacity: 1; }
.navbar.menu-open .logo-dark  { opacity: 0; }
.navbar.menu-open .nav-toggle { color: white; }
body.nav-open { overflow: hidden; }

/* ---- PAGE HERO (subpáginas) ---- */
.page-hero {
  position: relative;
  padding: 10rem 0 6rem;
  overflow: hidden;
  background: var(--azul);
  color: white;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  transition: transform 8s ease;
}
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(22,65,148,0.95) 0%, rgba(0,159,227,0.6) 100%);
}
.page-hero-content { position: relative; z-index: 2; }
.page-hero h1 { color: white; margin-bottom: 1rem; }
.page-hero p { color: rgba(255,255,255,0.8); max-width: 580px; }
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 1.5rem;
}
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: white; }
.breadcrumb span { color: rgba(255,255,255,0.4); }

/* ---- CARDS ---- */
.card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--gris-med);
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: 0 12px 40px rgba(22,65,148,0.12);
  transform: translateY(-4px);
}
.card-body { padding: 1.8rem; }
.card-icon {
  width: 52px; height: 52px;
  border-radius: 10px;
  background: rgba(0,159,227,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--celeste);
  font-size: 24px;
  margin-bottom: 1.2rem;
}
.card h3 { font-size: 1.05rem; font-weight: 600; color: var(--azul); margin-bottom: 0.6rem; }
.card p { font-size: 14px; color: var(--gris-texto); line-height: 1.7; }

/* ---- SECTION BG VARIANTS ---- */
.bg-light { background: var(--gris-claro); }
.bg-azul { background: var(--azul); color: white; }
.bg-azul .eyebrow { color: var(--celeste); }
.bg-azul .display-lg, .bg-azul .display-md { color: white; }
.bg-azul .lead { color: rgba(255,255,255,0.75); }

/* ---- IMAGE BLOCKS ---- */
.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}
.img-frame {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
}
.img-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  box-shadow: inset 0 0 0 1px rgba(22,65,148,0.1);
}
/* Foto decorativa al costado de un texto. Apilada en celular no aporta: queda como franja. */
.aside-img { width: 100%; height: 420px; object-fit: cover; border-radius: 12px; }
/* ---- STAT STRIP ---- */
.stat-strip {
  background: var(--azul);
  padding: 3.5rem 0;
}
.stat-grid { gap: 0; }
.stat-item { text-align: center; }
.stat-num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 900;
  color: white;
  line-height: 1;
  margin-bottom: 4px;
}
.stat-num span { color: var(--celeste); }
.stat-label { font-size: 13px; color: rgba(255,255,255,0.6); letter-spacing: 0.05em; }

/* ---- TEAM CARDS ---- */
.team-card {
  text-align: center;
}
.team-avatar {
  width: 100px; height: 100px;
  border-radius: 50%;
  margin: 0 auto 1rem;
  overflow: hidden;
  background: linear-gradient(135deg, var(--azul), var(--celeste));
  display: flex; align-items: center; justify-content: center;
  color: white;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  border: 3px solid var(--gris-med);
  transition: border-color var(--transition);
}
.team-card:hover .team-avatar { border-color: var(--celeste); }
.team-card img { width: 100%; height: 100%; object-fit: cover; }
.team-name { font-size: 1rem; font-weight: 600; color: var(--azul); margin-bottom: 3px; }
.team-role { font-size: 12.5px; color: var(--gris-texto); }

/* ---- FORM ---- */
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--azul);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gris-med);
  border-radius: 6px;
  font-size: 14.5px;
  color: var(--negro);
  background: white;
  font-family: var(--font-body);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--celeste);
  box-shadow: 0 0 0 3px rgba(0,159,227,0.12);
}
.form-control::placeholder { color: #b0b8c8; }
textarea.form-control { min-height: 130px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23164194' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; cursor: pointer; }

/* ---- FORM ASOCIARSE ---- */
.form-card {
  background: white;
  border: 1px solid var(--gris-med);
  border-radius: 14px;
  padding: 2.5rem;
  box-shadow: 0 10px 40px rgba(22,65,148,0.06);
}
.form-section { margin-bottom: 2.5rem; }
.form-section:last-of-type { margin-bottom: 1.5rem; }
.form-section-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--gris-med);
}
.form-section-num {
  width: 30px; height: 30px;
  flex-shrink: 0;
  border-radius: 8px;
  background: var(--azul);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700;
}
.form-section-head h3 { font-size: 1.15rem; font-weight: 700; color: var(--azul); }
.form-hint { font-size: 12px; color: var(--gris-texto); font-weight: 400; text-transform: none; letter-spacing: 0; margin-top: 2px; }
.req { color: #e0284d; }
.check-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 14px;
  border: 1.5px solid var(--gris-med);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  font-size: 14px; color: var(--negro);
}
.check-item:hover { border-color: var(--celeste); background: var(--gris-claro); }
.check-item input { margin-top: 3px; width: 17px; height: 17px; accent-color: var(--celeste); flex-shrink: 0; cursor: pointer; }
.check-item.selected { border-color: var(--celeste); background: rgba(0,159,227,0.06); }
.radio-row { display: flex; gap: 12px; flex-wrap: wrap; }
.radio-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  border: 1.5px solid var(--gris-med);
  border-radius: 999px;
  cursor: pointer;
  font-size: 14px;
  transition: all var(--transition);
}
.radio-pill:hover { border-color: var(--celeste); }
.radio-pill input { accent-color: var(--celeste); cursor: pointer; }
.radio-pill.selected { border-color: var(--celeste); background: rgba(0,159,227,0.08); color: var(--azul); font-weight: 600; }
.consent-box {
  display: flex; align-items: flex-start; gap: 12px;
  background: var(--gris-claro);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  font-size: 13.5px; color: var(--gris-texto); line-height: 1.6;
}
.consent-box input { margin-top: 3px; width: 18px; height: 18px; accent-color: var(--celeste); flex-shrink: 0; cursor: pointer; }
@media (max-width: 600px) {
  .form-card { padding: 1.5rem; }
  .check-grid { grid-template-columns: 1fr; }
}

/* ---- FOOTER ---- */
footer {
  background: var(--negro);
  color: white;
  padding: 5rem 0 0;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 3rem; padding-bottom: 3.5rem; }
.footer-brand .footer-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: white;
  margin-bottom: 1rem;
}
.footer-brand .footer-logo span { color: var(--celeste); }
.footer-brand p {
  font-size: 13.5px;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
  max-width: 280px;
  margin-bottom: 1.5rem;
}
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 16px;
  transition: all var(--transition);
}
.footer-social a:hover { background: var(--celeste); border-color: var(--celeste); color: white; }
.footer-col h4 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: white;
  margin-bottom: 1.3rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a {
  font-size: 13.5px;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--celeste); }
.footer-contact-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 12px;
}
.footer-contact-item i { font-size: 16px; color: var(--celeste); margin-top: 2px; flex-shrink: 0; }
.footer-contact-item p { font-size: 13px; color: rgba(255,255,255,0.5); line-height: 1.6; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,0.3); }

/* ---- INTRO SECTION CARDS (home) ---- */
.intro-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  cursor: pointer;
  transition: transform var(--transition);
}
.intro-card:hover { transform: translateY(-6px); }
.intro-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}
.intro-card:hover .intro-card-bg { transform: scale(1.04); }
.intro-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,19,33,0.92) 0%, rgba(13,19,33,0.2) 60%, transparent 100%);
}
.intro-card-content {
  position: relative;
  z-index: 2;
  padding: 2rem;
  color: white;
}
.intro-card-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--celeste);
  margin-bottom: 8px;
}
.intro-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.2;
}
.intro-card p {
  font-size: 13px;
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
  margin-bottom: 1.2rem;
}
.intro-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: white;
  border-bottom: 1px solid rgba(255,255,255,0.3);
  padding-bottom: 2px;
  transition: border-color var(--transition), color var(--transition);
}
.intro-card:hover .intro-card-link { color: var(--celeste); border-color: var(--celeste); }

/* ---- ANIMATIONS ---- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* ---- UTILITIES ---- */
.text-center { text-align: center; }
.text-white { color: white; }
.text-azul { color: var(--azul); }
.text-celeste { color: var(--celeste); }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.gap-sm { gap: 1rem; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.w-full { width: 100%; }

/* ---- RESPONSIVE ---- */
/* El menú completo necesita ~1100px: por debajo el logo, los cinco enlaces y
   Asociarme se pisan. Hasta ahí va el menú ☰. Margen lateral = el del .container. */
@media (max-width: 1100px) {
  .nav-menu { display: none; }
  .navbar { padding: 0 4vw; height: 64px; }
  .logo-white, .logo-dark { height: 36px; }
  .nav-actions { gap: 0.5rem; }
  .nav-cta { padding: 8px 14px; }
  .nav-social { display: none; }
  .nav-toggle { display: flex; }
  .nav-panel { display: flex; }
}
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .intro-section-grid { grid-template-columns: 1fr 1fr !important; }
  .section { padding: 4.5rem 0; }
  .aside-img { height: 200px; }
  .stat-grid { row-gap: 2rem; }
  /* Con menos de 16px iOS Safari hace zoom al enfocar el campo. */
  .form-control { font-size: 16px; }
}
@media (max-width: 600px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  /* En una columna el gap de la grilla se sumaría al margin-bottom de cada .form-group. */
  .form-grid { grid-template-columns: 1fr; gap: 0; }
  .intro-section-grid { grid-template-columns: 1fr !important; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .btn-row { flex-direction: column; }
  .btn-row > .btn { width: 100%; justify-content: center; }
}
/* Pantallas muy angostas: el botón queda solo con el ícono. */
@media (max-width: 360px) {
  .nav-cta-text { display: none; }
  .nav-cta { padding: 8px 11px; font-size: 16px; }
}