/* ============================================
   TREINA — main.css
   Paleta de la Marca: Azul #0055B7 | Oscuro #003F8A | Gris #a9aba0
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Russo+One&family=Open+Sans:ital,wght@0,400;0,600;0,700;1,400&display=swap');

/* ── VARIABLES ────────────────────────────── */
:root {
  --blue:       #0055B7;
  --blue-light: #1A6FD4;
  --blue-dark:  #003F8A;
  --blue-glow:  rgba(0,85,183,0.35);
  --dark:       #000204;
  --dark2:      #0a0c10;
  --dark3:      #111318;
  --gray:       #a9aba0;
  --gray-light: #c8c9c5;
  --white:      #F4F6FA;
  --accent:     #00C8FF;

  --font-display: 'Russo One', sans-serif;
  --font-cond:    'Russo One', sans-serif;
  --font-body:    'Open Sans', sans-serif;

  --radius:  6px;
  --radius-lg: 14px;
  --shadow:  0 4px 30px rgba(0,0,0,0.45);
  --shadow-blue: 0 8px 40px rgba(0,85,183,0.4);

  --nav-h: 72px;
  --transition: 0.3s cubic-bezier(.4,0,.2,1);
}

/* ── RESET & BASE ─────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 13px;}
body {
  background: var(--dark);
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── SCROLLBAR ────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark2); }
::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 3px; }

/* ── NAVBAR ───────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 5%;
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: rgba(13,15,20,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.6);
}
.nav-logo img { height: 28px; width: auto; border-radius: 4px; }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-left: auto;
}
.nav-menu a {
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-light);
  transition: color var(--transition);
  position: relative;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--blue);
  transition: width var(--transition);
}
.nav-menu a:hover { color: var(--white); }
.nav-menu a:hover::after { width: 100%; }
.nav-cta {
  background: var(--blue) !important;
  color: var(--white) !important;
  padding: 0.5rem 1.2rem !important;
  border-radius: var(--radius) !important;
  transition: background var(--transition), transform var(--transition) !important;
}
.nav-cta:hover { background: var(--blue-light) !important; transform: translateY(-1px) !important; }
.nav-cta::after { display: none !important; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
  padding: 6px;
  cursor: pointer;
}
.hamburger span {
  display: block; width: 26px; height: 2px;
  background: var(--white);
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── HERO ─────────────────────────────────── */
#inicio {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-video-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-video-wrap video {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.45;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(13,15,20,0.75) 0%,
    rgba(26,86,219,0.18) 60%,
    rgba(13,15,20,0.85) 100%
  );
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 820px;
  padding: 0 1.5rem;
  animation: heroIn 1s ease forwards;
}
@keyframes heroIn {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(0,200,255,0.4);
  padding: 0.35rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.4rem;
  backdrop-filter: blur(8px);
}
.hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 6rem);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--white);
  text-shadow: 0 4px 40px rgba(0,0,0,0.6);
  margin-bottom: 0.6rem;
}
.hero-content h1 span { color: var(--blue); }
.hero-content h2 {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 400;
  color: var(--gray-light);
  margin-bottom: 2.4rem;
  line-height: 1.5;
}
.hero-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--blue);
  color: var(--white);
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover {
  background: var(--blue-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 50px rgba(26,86,219,0.55);
}
.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #25D366;
  color: #fff;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
  box-shadow: 0 8px 30px rgba(37,211,102,0.3);
}
.btn-whatsapp:hover {
  background: #1ebe5d;
  transform: translateY(-2px);
}
.btn-whatsapp svg, .btn-primary svg { width: 20px; height: 20px; flex-shrink: 0; }
.hero-scroll-hint {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-cond);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--gray);
  text-transform: uppercase;
  animation: bounce 2s infinite;
}
.hero-scroll-hint::after {
  content: '';
  display: block;
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--blue), transparent);
}
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* ── PARALLAX DIVIDERS ───────────────────── */
.parallax-divider {
  position: relative;
  height: 340px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.parallax-divider .pd-bg {
  position: absolute;
  inset: -60px 0;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  filter: brightness(0.28);
}
.parallax-divider .pd-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(13,15,20,0.6) 0%,
    rgba(26,86,219,0.15) 50%,
    rgba(13,15,20,0.6) 100%
  );
}
.parallax-divider .pd-title {
  position: relative;
  z-index: 2;
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  letter-spacing: 0.06em;
  color: var(--white);
  text-align: center;
  text-shadow: 0 0 60px rgba(26,86,219,0.6);
}
.parallax-divider .pd-title span { color: var(--blue); }
.parallax-divider .pd-line {
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 80px; height: 3px;
  background: var(--blue);
  z-index: 2;
}

/* ── SECTION COMMONS ─────────────────────── */
section { padding: 5rem 5%; }
.section-tag {
  display: inline-block;
  font-family: var(--font-cond);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.8rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--white);
  margin-bottom: 1.2rem;
}
.section-title span { color: var(--blue); }
.section-lead {
  font-size: 1.05rem;
  color: var(--gray);
  line-height: 1.7;
  max-width: 580px;
}
.section-divider {
  width: 56px; height: 3px;
  background: var(--blue);
  margin: 1.4rem 0;
}

/* ── NOSOTROS ─────────────────────────────── */
#nosotros { background: var(--dark2); }
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto 5rem;
}
.about-intro.reverse { direction: rtl; }
.about-intro.reverse > * { direction: ltr; }
.about-img-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.about-img-wrap img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.about-img-wrap:hover img { transform: scale(1.04); }
.about-img-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(26,86,219,0.25);
  border-radius: var(--radius-lg);
  z-index: 1;
  pointer-events: none;
}
.about-badge {
  position: absolute;
  bottom: -16px; right: -16px;
  background: var(--blue);
  border-radius: var(--radius-lg);
  padding: 1rem 1.4rem;
  z-index: 2;
  box-shadow: var(--shadow-blue);
  text-align: center;
}
.about-badge strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--white);
  line-height: 1;
}
.about-badge span {
  font-family: var(--font-cond);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
}
.about-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}
.stat-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.6rem;
  color: var(--blue);
  line-height: 1;
}
.stat-item span {
  font-family: var(--font-cond);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--gray);
  text-transform: uppercase;
}

/* ── SEDES ────────────────────────────────── */
.sedes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 3rem auto 0;
}
.sede-card {
  background: var(--dark3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}
.sede-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(26,86,219,0.3);
}
.sede-card-img {
  height: 200px;
  overflow: hidden;
}
.sede-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.sede-card:hover .sede-card-img img { transform: scale(1.06); }
.sede-card-body { padding: 1.6rem; }
.sede-name {
  font-family: var(--font-display);
  font-size: 1.7rem;
  letter-spacing: 0.04em;
  color: var(--white);
  margin-bottom: 0.8rem;
}
.sede-info { font-size: 0.9rem; color: var(--gray); line-height: 1.6; }
.sede-info p { display: flex; gap: 0.5rem; align-items: flex-start; margin-bottom: 0.5rem; }
.sede-info svg { width: 15px; height: 15px; color: var(--blue); flex-shrink: 0; margin-top: 2px; }
.sede-services {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}
.sede-tag {
  font-family: var(--font-cond);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-light);
  background: rgba(26,86,219,0.15);
  border: 1px solid rgba(26,86,219,0.3);
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
}
.sede-wsp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(37,211,102,0.12);
  color: #25D366;
  border: 1px solid rgba(37,211,102,0.3);
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius);
  margin-top: 1.2rem;
  transition: background var(--transition), color var(--transition);
}
.sede-wsp-btn:hover { background: rgba(37,211,102,0.22); }
.sede-wsp-btn svg { width: 16px; height: 16px; }

/* ── PROFESORES ───────────────────────────── */
.teachers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1200px;
  margin: 3rem auto 0;
}
.teacher-card {
  background: var(--dark3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
}
.teacher-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 50px rgba(0,0,0,0.4);
}
.teacher-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}
.teacher-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.5s ease;
  filter: grayscale(15%);
}
.teacher-card:hover .teacher-img img { transform: scale(1.05); filter: grayscale(0%); }
.teacher-img::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: linear-gradient(to top, var(--dark3), transparent);
}
.teacher-body { padding: 1.2rem 1rem 1.5rem; }
.teacher-name {
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--white);
  margin-bottom: 0.3rem;
}
.teacher-class {
  font-family: var(--font-cond);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue-light);
}
.teacher-desc {
  font-size: 0.83rem;
  color: var(--gray);
  margin-top: 0.7rem;
  line-height: 1.6;
}

/* ── RESEÑAS ─────────────────────────────── */
.reviews-carousel-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5%;
}
.reviews-carousel {
  display: flex;
  gap: 1.5rem;
  padding: 1rem 0 2rem;
  overflow-x: scroll;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  cursor: grab;
}
.reviews-carousel.dragging {
  cursor: grabbing;
  scroll-snap-type: none;
  user-select: none;
}
.reviews-carousel::-webkit-scrollbar { display: none; }
.reviews-carousel .review-card {
  flex: 0 0 340px;
  scroll-snap-align: start;
}
.review-card {
  background: var(--dark3);
  border-radius: var(--radius-lg);
  padding: 2rem 1.8rem;
  border: 1px solid rgba(255,255,255,0.06);
  position: relative;
  transition: transform var(--transition);
}
.review-card:hover { transform: translateY(-3px); }
.review-card::before {
  content: '"';
  position: absolute;
  top: 1rem; right: 1.5rem;
  font-family: var(--font-display);
  font-size: 5rem;
  color: rgba(26,86,219,0.15);
  line-height: 1;
}
.review-user {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1rem;
}
.review-avatar {
  width: 52px; height: 52px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--blue);
  flex-shrink: 0;
}
.review-avatar img { width: 100%; height: 100%; object-fit: cover; }
.review-name {
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
}
.review-stars {
  display: flex;
  gap: 2px;
  margin-top: 2px;
}
.review-stars svg { width: 14px; height: 14px; fill: #FFBC11; }
.review-text {
  font-size: 0.9rem;
  color: var(--gray-light);
  line-height: 1.7;
  font-style: italic;
}

.reviews-carousel-wrap {
  position: relative;  /* agregá esto al wrap */
}
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--blue);
  color: var(--white);
  font-size: 1.8rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-blue);
  transition: background var(--transition), transform var(--transition);
}
.carousel-btn:hover { background: var(--blue-light); transform: translateY(-50%) scale(1.1); }
.carousel-btn--prev { left: 0; }
.carousel-btn--next { right: 0; }

/* ── GALERÍA ─────────────────────────────── */
#galeria { background: var(--dark); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  max-width: 1200px;
  margin: 3rem auto 0;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.3s ease;
  filter: brightness(0.85);
}
.gallery-item:hover img { transform: scale(1.08); filter: brightness(1); }
.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(26,86,219,0.0);
  transition: background 0.3s ease;
}
.gallery-item:hover::after { background: rgba(26,86,219,0.2); }
.gallery-zoom {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0);
  z-index: 2;
  width: 48px; height: 48px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}
.gallery-zoom svg { width: 22px; height: 22px; color: var(--white); }
.gallery-item:hover .gallery-zoom { transform: translate(-50%, -50%) scale(1); }

/* Lightbox */
#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0,0,0,0.92);
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
}
#lightbox.active { display: flex; }
#lightbox img {
  max-width: 90vw;
  max-height: 88vh;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
#lb-close {
  position: absolute;
  top: 1.5rem; right: 2rem;
  font-size: 2rem;
  color: var(--white);
  cursor: pointer;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s;
}
#lb-close:hover { opacity: 1; }
#lb-prev, #lb-next {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  font-size: 2.5rem;
  color: var(--white);
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
  padding: 1rem;
  user-select: none;
}
#lb-prev { left: 1rem; }
#lb-next { right: 1rem; }
#lb-prev:hover, #lb-next:hover { opacity: 1; }

/* ── SERVICIOS ────────────────────────────── */
#servicios { background: var(--dark2); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  max-width: 1200px;
  margin: 3rem auto 0;
}
.service-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--dark3);
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(26,86,219,0.35);
}
.service-card-bg {
  height: 240px;
  overflow: hidden;
  position: relative;
}
.service-card-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
  filter: brightness(0.55);
}
.service-card:hover .service-card-bg img { transform: scale(1.08); filter: brightness(0.7); }
/*.service-icon {
  position: absolute;
  top: 1.2rem; left: 1.2rem;
  z-index: 2;
  width: 44px; height: 44px;
  background: var(--blue);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: var(--shadow-blue);
}*/
.service-card-body { padding: 1.6rem; }
.service-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.04em;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.service-desc {
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 1.2rem;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.4rem;
}
.service-tag {
  font-family: var(--font-cond);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-light);
  background: rgba(255,255,255,0.06);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}
.service-actions {
  display: flex;
  gap: 0.8rem;
}
.btn-service-wsp {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: rgba(37,211,102,0.12);
  color: #25D366;
  border: 1px solid rgba(37,211,102,0.3);
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  transition: background var(--transition);
}
.btn-service-wsp:hover { background: rgba(37,211,102,0.22); }
.btn-service-wsp svg { width: 15px; height: 15px; }
.btn-service-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: rgba(26,86,219,0.15);
  color: var(--blue-light);
  border: 1px solid rgba(26,86,219,0.3);
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  transition: background var(--transition);
}
.btn-service-more:hover { background: rgba(26,86,219,0.3); }
.btn-service-more svg { width: 14px; height: 14px; }

/* Services last two centered */
.services-grid .service-card:nth-child(4),
.services-grid .service-card:nth-child(5) {
  grid-column: span 1;
}
.services-row-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
  max-width: 800px;
  margin: 1.8rem auto 0;
}

/* ── CONTACTO ─────────────────────────────── */
#contacto { background: var(--dark); }
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  max-width: 1100px;
  margin: 3rem auto 0;
  align-items: start;
}
.contact-info h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  letter-spacing: 0.04em;
  color: var(--white);
  margin-bottom: 1.4rem;
}
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  margin-bottom: 1.4rem;
}
.contact-detail-icon {
  width: 42px; height: 42px;
  background: rgba(26,86,219,0.15);
  border: 1px solid rgba(26,86,219,0.3);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-detail-icon svg { width: 20px; height: 20px; color: var(--blue-light); }
.contact-detail-text strong {
  display: block;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.2rem;
}
.contact-detail-text span {
  font-size: 0.95rem;
  color: var(--white);
}
.contact-map {
  margin-top: 2rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
}
.contact-map a { display: block; }
.contact-map img {
  width: 100%;
  display: block;
  transition: opacity 0.3s;
}
.contact-map img:hover { opacity: 0.85; }

.contact-form {
  background: var(--dark3);
  border-radius: var(--radius-lg);
  padding: 2.4rem;
  border: 1px solid rgba(255,255,255,0.06);
}
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block;
  font-family: var(--font-cond);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.45rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A919E' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}
.form-group select option { background: var(--dark3); color: var(--white); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  background: rgba(26,86,219,0.07);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-group.full { grid-column: 1 / -1; }
.g-recaptcha { margin-bottom: 1.2rem; }
.btn-submit {
  width: 100%;
  background: var(--blue);
  color: var(--white);
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 1rem;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-blue);
}
.btn-submit:hover {
  background: var(--blue-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(26,86,219,0.5);
}
#form-msg {
  margin-top: 0.8rem;
  font-size: 0.9rem;
  text-align: center;
  min-height: 1.5em;
}
#form-msg.success { color: #25D366; }
#form-msg.error   { color: #FF4D4F; }

/* ── FOOTER ───────────────────────────────── */
#footer {
  background: var(--dark2);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 3.5rem 5% 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto 2.5rem;
}
.footer-brand img { height: 34px; width: auto; margin-bottom: 1rem; border-radius: 4px; }
.footer-brand p {
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.7;
  max-width: 260px;
}
.footer-social {
  display: flex;
  gap: 0.8rem;
  margin-top: 1.2rem;
}
.social-icon {
  width: 38px; height: 38px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.social-icon:hover {
  background: var(--blue);
  border-color: var(--blue);
  transform: translateY(-2px);
}
.social-icon svg { width: 18px; height: 18px; fill: none; stroke: var(--white); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.footer-col h4 {
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-col a, .footer-col p {
  display: block;
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.5;
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--blue-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.footer-bottom p { font-size: 0.8rem; color: var(--gray); }
.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}
.footer-bottom-links a {
  font-size: 0.8rem;
  color: var(--gray);
  transition: color 0.2s;
}
.footer-bottom-links a:hover { color: var(--blue-light); }

/* ── WHATSAPP FLOAT ───────────────────────── */
#wsp-float {
  position: fixed;
  bottom: 2rem; right: 2rem;
  z-index: 900;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.6rem;
}
.wsp-bubble {
  width: 58px; height: 58px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 25px rgba(37,211,102,0.45);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  position: relative;
}
.wsp-bubble:hover { transform: scale(1.1); box-shadow: 0 10px 35px rgba(37,211,102,0.55); }
.wsp-bubble svg { width: 30px; height: 30px; fill: #fff; }
.wsp-bubble::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: rgba(37,211,102,0.25);
  animation: wspPulse 2s infinite;
}
@keyframes wspPulse {
  0%   { transform: scale(1); opacity: 0.6; }
  70%  { transform: scale(1.4); opacity: 0; }
  100% { transform: scale(1.4); opacity: 0; }
}
.wsp-tooltip {
  background: var(--dark3);
  color: var(--white);
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 0.82rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius);
  white-space: nowrap;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateX(8px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}
#wsp-float:hover .wsp-tooltip { opacity: 1; transform: translateX(0); }

/* ── COOKIE BANNER ───────────────────────── */
#cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 9999;
  background: var(--dark3);
  border-top: 1px solid rgba(26,86,219,0.4);
  padding: 1.2rem 5%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}
#cookie-banner.show { transform: translateY(0); }
#cookie-banner p { font-size: 0.88rem; color: var(--gray-light); flex: 1; min-width: 200px; }
#cookie-banner p a { color: var(--blue-light); text-decoration: underline; }
.cookie-btns { display: flex; gap: 0.7rem; flex-wrap: wrap; }
.btn-cookie-accept {
  background: var(--blue);
  color: var(--white);
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.55rem 1.3rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s;
}
.btn-cookie-accept:hover { background: var(--blue-light); }
.btn-cookie-reject {
  background: transparent;
  color: var(--gray);
  border: 1px solid rgba(255,255,255,0.15);
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.55rem 1.3rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.2s;
}
.btn-cookie-reject:hover { color: var(--white); }

/* ── SCROLL REVEAL CLASSES ────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── RESPONSIVE ───────────────────────────── */
@media (max-width: 1024px) {
  .teachers-grid { grid-template-columns: repeat(2, 1fr); }
  .sedes-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --nav-h: 62px; }
  .nav-menu { 
    display: none;
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(13,15,20,0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 2rem 5%;
    gap: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { font-size: 1.1rem; }
  .hamburger { display: flex; }
  .about-intro,
  .about-intro.reverse { grid-template-columns: 1fr; direction: ltr; gap: 2.5rem; }
  .about-intro.reverse > * { direction: ltr; }
  .sedes-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .services-row-2 { grid-template-columns: 1fr; max-width: 500px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; gap: 2.5rem; }
  .reviews-carousel .review-card { flex: 0 0 85vw; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  section { padding: 3.5rem 5%; }
  .services-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .teachers-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; align-items: center; }
}