/* ============================================================
   Centro Escolar México | Green School
   Estilos principales — Mobile-first
   Autor: Sitio institucional cemgs.com
   ============================================================ */

/* ============================================================
   1. VARIABLES Y BASE
   ============================================================ */
:root {
  --color-primary:        #3c55b6;
  --color-primary-dark:   #2e4291;
  --color-primary-light:  #eef1fb;
  --color-secondary:      #0dc439;
  --color-secondary-dark: #0aad30;
  --color-secondary-light:#e6fced;
  --color-wa:             #25D366;
  --color-wa-dark:        #1da851;
  --color-text:           #1a1a2e;
  --color-text-mid:       #4a4a6a;
  --color-text-light:     #6b7280;
  --color-bg:             #ffffff;
  --color-bg-alt:         #f7f8fc;
  --color-bg-green:       #f0fdf4;
  --color-border:         #e5e7eb;
  --font:                 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-sm:            6px;
  --radius:               10px;
  --radius-lg:            16px;
  --shadow-sm:            0 1px 4px rgba(0,0,0,0.08);
  --shadow:               0 4px 20px rgba(60,85,182,0.10);
  --shadow-lg:            0 8px 40px rgba(60,85,182,0.15);
  --max-width:            1120px;
  --transition:           0.2s ease;
}

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

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

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

address {
  font-style: normal;
}

/* ============================================================
   3. TIPOGRAFÍA
   ============================================================ */
h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 700;
  color: var(--color-text);
}

h1 { font-size: clamp(1.75rem, 5vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 3.5vw, 2.1rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.35rem); }
h4 { font-size: 1rem; font-weight: 600; }

p {
  color: var(--color-text-mid);
  margin-bottom: 1rem;
}

p:last-child { margin-bottom: 0; }

strong { color: var(--color-text); font-weight: 600; }

/* ============================================================
   4. LAYOUT
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 4rem 0;
}

/* ============================================================
   5. COMPONENTES COMUNES
   ============================================================ */

/* Etiqueta de sección */
.section-tag {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  max-width: 640px;
  margin-bottom: 2.5rem;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-whatsapp {
  background: var(--color-wa);
  color: #fff;
}

.btn-whatsapp:hover {
  background: var(--color-wa-dark);
  box-shadow: 0 4px 16px rgba(37,211,102,0.35);
}

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

.btn-outline:hover {
  background: var(--color-primary-light);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Texto verde del hero */
.text-green {
  color: var(--color-secondary);
}

/* Placeholder de imágenes */
.img-placeholder {
  background: var(--color-bg-alt);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  color: var(--color-text-light);
  font-size: 0.875rem;
  text-align: center;
  padding: 1rem;
}

/* Lista de fortalezas */
.strength-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.strength-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: var(--color-text-mid);
}

.strength-list li::before {
  content: '✓';
  color: var(--color-secondary);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.1em;
}

/* ============================================================
   6. HEADER Y NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 1rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-img {
  height: 40px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo-sub {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-secondary-dark);
}

/* Hamburger */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menú mobile */
.nav-menu {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  padding: 1rem 1.25rem 1.5rem;
  gap: 0.25rem;
}

.nav-menu.is-open {
  display: flex;
}

.nav-link {
  display: block;
  padding: 0.6rem 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-mid);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.nav-cta {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.65rem 1.25rem;
  background: var(--color-wa);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  text-align: center;
  transition: background var(--transition);
}

.nav-cta:hover {
  background: var(--color-wa-dark);
}

/* ============================================================
   7. HERO
   ============================================================ */
.section-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2e4291 100%);
  padding: 3.5rem 0;
  color: #fff;
}

.hero-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.hero-tag {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: 0.75rem;
}

.section-hero h1 {
  color: #fff;
  margin-bottom: 1rem;
}

.section-hero .text-green {
  color: var(--color-secondary);
}

.hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  max-width: 520px;
  margin-bottom: 1.75rem;
}

.hero-note {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-top: 0.75rem;
}

.hero-placeholder {
  min-height: 260px;
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.5);
}

/* ============================================================
   8. TRUST BAR
   ============================================================ */
.trust-bar {
  background: var(--color-primary);
  padding: 1.25rem 0;
  border-bottom: 3px solid var(--color-secondary);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.trust-item strong {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.trust-item span {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.75);
  margin-top: 0.2rem;
}

/* ============================================================
   9. SECCIÓN INTRO
   ============================================================ */
.section-intro {
  background: var(--color-bg);
}

.intro-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.intro-text h2 {
  margin-bottom: 1rem;
}

.intro-media .img-placeholder {
  min-height: 300px;
}

/* ============================================================
   10. NIVELES OVERVIEW
   ============================================================ */
.section-levels-overview {
  background: var(--color-bg-alt);
  padding: 4rem 0;
}

.levels-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.level-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  text-decoration: none;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.level-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.level-card h3 {
  font-size: 1rem;
  color: var(--color-text);
}

.level-card p {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin: 0;
}

.level-icon {
  font-size: 2rem;
  line-height: 1;
}

.level-card-featured {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.level-badge-top {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ============================================================
   11. MAPA PREVIEW
   ============================================================ */
.section-map-preview {
  background: var(--color-bg);
  padding: 4rem 0;
}

.map-preview-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.map-preview-text h2 {
  margin-bottom: 0.75rem;
}

.map-preview-text address p {
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.location-ref {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-top: 0.5rem;
  line-height: 1.6;
}

.map-embed iframe {
  border-radius: var(--radius);
  display: block;
}

/* ============================================================
   12. LA ESCUELA
   ============================================================ */
.section-school {
  background: var(--color-bg-alt);
}

.school-story-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 3rem;
}

.school-story-text p {
  margin-bottom: 1rem;
}

.school-slogan {
  font-size: 1.1rem;
  color: var(--color-primary);
  font-weight: 500;
  border-left: 3px solid var(--color-secondary);
  padding-left: 1rem;
  margin-top: 1.5rem;
}

/* Pilares */
.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.pillar {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.pillar-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.pillar-blue { background: var(--color-primary-light); color: var(--color-primary); }
.pillar-green { background: var(--color-secondary-light); color: var(--color-secondary-dark); }

.pillar h3 {
  margin-bottom: 0.5rem;
}

/* ============================================================
   13. PROYECTO VERDE
   ============================================================ */
.proyecto-verde {
  background: var(--color-bg-green);
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  margin-top: 1rem;
}

.pv-header {
  margin-bottom: 2rem;
}

.pv-badge {
  display: inline-block;
  background: var(--color-secondary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.pv-header h2 {
  margin-bottom: 0.75rem;
}

.pv-intro {
  font-size: 1rem;
  color: var(--color-text-mid);
  max-width: 680px;
}

.pv-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.pv-block {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid #d1fae5;
}

.pv-icon {
  font-size: 1.75rem;
  display: block;
  margin-bottom: 0.5rem;
}

.pv-block h4 {
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.pv-benefits {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid #d1fae5;
  margin-bottom: 2rem;
}

.pv-benefits h4 {
  margin-bottom: 0.75rem;
  color: var(--color-secondary-dark);
}

.pv-benefits ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.pv-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: var(--color-text-mid);
}

.pv-benefits li::before {
  content: '🌱';
  flex-shrink: 0;
}

.video-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-mid);
  margin-bottom: 0.75rem;
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: #000;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ============================================================
   14. NIVELES EDUCATIVOS
   ============================================================ */
.section-levels {
  background: var(--color-bg);
}

.level-block {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.5rem;
  background: #fff;
}

.level-block-featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow);
}

.level-block-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.level-block-featured .level-block-header {
  background: var(--color-primary-light);
}

.level-block-header h3 {
  margin-top: 0.5rem;
}

.level-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
}

.lt-1 { background: #fce7f3; color: #9d174d; }
.lt-2 { background: #fef3c7; color: #92400e; }
.lt-3 { background: var(--color-primary-light); color: var(--color-primary-dark); }
.lt-4 { background: #ede9fe; color: #5b21b6; }
.lt-5 { background: #ffedd5; color: #9a3412; }

.level-featured-badge {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  margin-left: 0.5rem;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.level-block-body {
  padding: 1.5rem;
}

.level-block-text > p {
  margin-bottom: 1.25rem;
}

.level-cols {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1rem;
}

.level-cols h4 {
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.level-cols ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.level-cols li {
  font-size: 0.9rem;
  color: var(--color-text-mid);
  padding-left: 1.1em;
  position: relative;
}

.level-cols li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: 700;
}

.level-block-cta {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.achievement-callout {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #fef9c3;
  border: 1px solid #fde047;
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  margin: 1rem 0;
  font-size: 0.875rem;
  color: var(--color-text);
}

.achievement-callout span {
  font-size: 1.5rem;
  flex-shrink: 0;
}

/* ============================================================
   15. ACTIVIDADES Y TALLERES
   ============================================================ */
.section-activities {
  background: var(--color-bg-alt);
}

.activities-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.activity-cat {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
}

.activity-cat-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.activity-icon {
  font-size: 1.75rem;
  line-height: 1;
}

.activity-cat h3 {
  font-size: 1rem;
}

.activity-cat ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.activity-cat li {
  font-size: 0.9rem;
  color: var(--color-text-mid);
  padding-left: 1.25rem;
  position: relative;
}

.activity-cat li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: 700;
  font-size: 0.85rem;
}

/* Logros */
.achievements-block {
  margin-bottom: 2.5rem;
}

.achievements-block h3 {
  margin-bottom: 1.25rem;
}

.achievements-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.achievement-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: #fff;
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid var(--color-border);
}

.achievement-icon {
  font-size: 2rem;
  flex-shrink: 0;
  line-height: 1;
}

.achievement-item strong {
  display: block;
  margin-bottom: 0.25rem;
}

.achievement-item p {
  font-size: 0.875rem;
  margin: 0;
}

/* Galería */
.gallery-section {
  margin-top: 2rem;
}

.gallery-label {
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.gallery-grid-4 {
  grid-template-columns: repeat(2, 1fr);
}

.gallery-item {
  min-height: 140px;
  border-radius: var(--radius-sm);
}

.gallery-note {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin: 0;
}

/* ============================================================
   16. INSTALACIONES
   ============================================================ */
.section-facilities {
  background: var(--color-bg);
}

.facilities-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.facility-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
}

.facility-card-green {
  background: var(--color-bg-green);
  border-color: #bbf7d0;
}

.facility-icon {
  font-size: 1.75rem;
  line-height: 1;
  flex-shrink: 0;
}

.facility-card h3 {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.facility-card p {
  font-size: 0.875rem;
  margin: 0;
}

/* ============================================================
   17. CONTACTO
   ============================================================ */
.section-contact {
  background: var(--color-bg-alt);
}

.contact-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-block {
  margin-bottom: 1.75rem;
}

.contact-block:last-child {
  margin-bottom: 0;
}

.contact-block h3 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.contact-block address p,
.contact-block p {
  font-size: 0.975rem;
}

.contact-ref {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 0.5rem;
  line-height: 1.7;
}

.btn-contact-wa {
  width: 100%;
  justify-content: center;
  font-size: 1rem;
  padding: 1rem;
}

.contact-wa-number {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-top: 0.5rem;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-mid);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.social-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.contact-map iframe {
  border-radius: var(--radius);
  display: block;
}

/* ============================================================
   18. FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.75);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 3rem 1.25rem 2rem;
}

.footer-logo-text {
  display: flex;
  flex-direction: column;
  margin-bottom: 0.5rem;
}

.footer-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}

.footer-sub {
  font-size: 0.8rem;
  color: var(--color-secondary);
  font-weight: 500;
}

.footer-slogan {
  font-size: 0.8rem;
  font-style: italic;
  color: rgba(255,255,255,0.5);
  margin-bottom: 0.75rem;
}

.footer-addr {
  font-size: 0.85rem;
  line-height: 1.6;
}

.footer-nav h4 {
  color: #fff;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.footer-nav a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--color-secondary);
}

.footer-contact h4 {
  color: #fff;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.footer-wa-link {
  display: block;
  color: var(--color-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
  transition: opacity var(--transition);
}

.footer-wa-link:hover {
  opacity: 0.8;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  transition: color var(--transition);
}

.footer-social a:hover {
  color: var(--color-secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 1.25rem 1.25rem;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  text-align: center;
  margin: 0;
}

/* ============================================================
   19. BOTÓN FLOTANTE WHATSAPP
   ============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 900;
  background: var(--color-wa);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem 0.75rem 1rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 20px rgba(37,211,102,0.45);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.whatsapp-float:hover {
  background: var(--color-wa-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(37,211,102,0.5);
}

/* ============================================================
   20. MEDIA QUERIES — TABLET (≥ 640px)
   ============================================================ */
@media (min-width: 640px) {
  .trust-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .levels-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pv-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .activities-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .facilities-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .achievements-grid {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .achievement-item {
    flex: 1;
    min-width: 200px;
  }

  .level-cols {
    flex-direction: row;
    gap: 2rem;
  }

  .level-cols > div {
    flex: 1;
  }
}

/* ============================================================
   21. MEDIA QUERIES — LAPTOP/DESKTOP (≥ 1024px)
   ============================================================ */
@media (min-width: 1024px) {

  /* Nav */
  .nav-toggle { display: none; }

  .nav-menu {
    display: flex !important;
    flex-direction: row;
    position: static;
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
    align-items: center;
    gap: 0.25rem;
  }

  .nav-link {
    padding: 0.4rem 0.75rem;
    font-size: 0.875rem;
  }

  .nav-cta {
    margin-top: 0;
    padding: 0.5rem 1.1rem;
    font-size: 0.875rem;
  }

  /* Hero */
  .hero-grid {
    flex-direction: row;
    align-items: center;
    gap: 4rem;
  }

  .hero-text { flex: 1; }
  .hero-media { flex: 0 0 420px; }

  .hero-placeholder {
    min-height: 380px;
  }

  /* Secciones */
  .section { padding: 5.5rem 0; }

  /* Intro */
  .intro-grid {
    flex-direction: row;
    align-items: flex-start;
    gap: 4rem;
  }

  .intro-text { flex: 1; }
  .intro-media { flex: 0 0 420px; }

  /* Niveles overview */
  .levels-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  /* Mapa preview */
  .map-preview-grid {
    flex-direction: row;
    align-items: flex-start;
    gap: 3rem;
  }

  .map-preview-text { flex: 0 0 380px; }
  .map-embed { flex: 1; }

  /* La Escuela */
  .school-story-grid {
    flex-direction: row;
    align-items: flex-start;
    gap: 4rem;
  }

  .school-story-text { flex: 1; }
  .school-story-media { flex: 0 0 400px; }

  .pillars-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Proyecto Verde */
  .pv-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Actividades */
  .activities-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Instalaciones */
  .facilities-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Galería */
  .gallery-grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .gallery-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Contacto */
  .contact-grid {
    flex-direction: row;
    align-items: flex-start;
    gap: 3.5rem;
  }

  .contact-info { flex: 0 0 340px; }
  .contact-map { flex: 1; }

  .btn-contact-wa {
    width: auto;
    justify-content: flex-start;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  /* WhatsApp float — solo en mobile por defecto, visible en todos */
  .whatsapp-float {
    bottom: 2rem;
    right: 2rem;
  }
}

/* ============================================================
   22. ACCESIBILIDAD
   ============================================================ */
:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}