/* ═══════════════════════════════════════════
   VARIABLES & RESET
═══════════════════════════════════════════ */
:root {
  --primary: #5fc3be;
  --primary-dark: #0f4376;
  --secondary: #9cded9;
  --accent: #f3f5f7;
  --white: #ffffff;
  --text: #18324a;
  --text-soft: #5f6f7d;
  --border: #d9e5ea;
  --shadow: 0 12px 30px rgba(15, 67, 118, 0.10);
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
  --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: "Poppins", sans-serif; color: var(--text); background: var(--white); line-height: 1.6; }
img, video { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ═══════════════════════════════════════════
   LAYOUT
═══════════════════════════════════════════ */
.container {
  width: min(92%, var(--container));
  margin: 0 auto;
}
.section { padding: 90px 0; }
.light-bg { background: linear-gradient(180deg, #fbfcfd 0%, #f2f6f8 100%); }

/* ═══════════════════════════════════════════
   TYPOGRAPHY HELPERS
═══════════════════════════════════════════ */
.section-tag, .eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary-dark);
  background: rgba(95, 195, 190, 0.14);
  padding: 8px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.section-header { max-width: 760px; margin: 0 auto 42px; text-align: center; }
.section-header h2,
.section-content h2,
.form-info h2,
.split-content h2 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.12; margin-bottom: 16px; }
.hero-content h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); line-height: 1.04; margin-bottom: 18px; }
.section-header p,
.section-content p,
.form-info p,
.split-content p,
.hero-content p,
.photometry-card p,
.video-content p,
.card-body p,
.feature-mini-card p,
.contact-card p { color: var(--text-soft); }

/* ═══════════════════════════════════════════
   HEADER / NAV
═══════════════════════════════════════════ */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(217,229,234,0.8);
}
.nav-container {
  min-height: 88px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 18px;
  align-items: center;
}
.logo { display: flex; align-items: center; gap: 14px; }
.logo-image {
  width: 66px; height: 66px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: var(--shadow);
  background: var(--white);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-title { font-size: 1.05rem; font-weight: 700; }
.logo-subtitle { font-size: 0.82rem; color: var(--text-soft); }

.nav { display: flex; justify-content: center; align-items: center; gap: 22px; }
.nav a { font-size: 0.95rem; font-weight: 500; transition: var(--transition); }
.nav a:hover { color: var(--primary-dark); }

.social-header { display: flex; gap: 12px; align-items: center; }
.social-header a {
  width: 38px; height: 38px;
  border-radius: 12px;
  background: rgba(95,195,190,0.12);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
  border: 1px solid rgba(95,195,190,0.18);
}
.social-header svg { width: 18px; height: 18px; fill: var(--primary-dark); }
.social-header a:hover { background: var(--primary-dark); transform: translateY(-2px); }
.social-header a:hover svg { fill: var(--white); }

.menu-toggle { display: none; background: none; border: none; cursor: pointer; }
.menu-toggle span { display: block; width: 26px; height: 3px; background: var(--text); border-radius: 3px; margin: 5px 0; transition: var(--transition); }

/* ═══════════════════════════════════════════
   HERO
═══════════════════════════════════════════ */
.hero {
  padding: 96px 0 74px;
  background:
    radial-gradient(circle at top left, rgba(95,195,190,0.18), transparent 30%),
    radial-gradient(circle at bottom right, rgba(15,67,118,0.06), transparent 25%),
    linear-gradient(180deg, #fafdff 0%, #ffffff 100%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.hero-content p { margin-bottom: 26px; max-width: 650px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 28px; }
.hero-highlights { display: grid; grid-template-columns: repeat(2, minmax(200px, 1fr)); gap: 16px; }
.highlight-card {
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow);
}
.highlight-card strong { display: block; color: var(--primary-dark); margin-bottom: 6px; }
.highlight-card span { color: var(--text-soft); font-size: 0.92rem; }
.hero-image img {
  width: 100%;
  min-height: 560px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

/* ═══════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 22px; border-radius: 999px;
  font-weight: 600; border: none; cursor: pointer; transition: var(--transition);
}
.btn-sm { padding: 11px 16px; font-size: 0.9rem; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white); box-shadow: var(--shadow);
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-secondary { background: var(--white); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary-dark); }

/* ═══════════════════════════════════════════
   BANNER STRIP
═══════════════════════════════════════════ */
.banner-strip {
  padding: 0 0 32px;
  background: var(--white);
}
.banner-img {
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

/* ═══════════════════════════════════════════
   ABOUT / NOSOTROS
═══════════════════════════════════════════ */
.section-grid,
.split-grid,
.form-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 42px;
  align-items: center;
}
.reverse .split-image { order: 2; }
.reverse .split-content { order: 1; }

.section-image { position: relative; }
.section-image img,
.split-image img {
  width: 100%;
  min-height: 420px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.doctor-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: var(--shadow);
}
.doctor-badge strong { display: block; color: var(--primary-dark); font-size: 0.98rem; margin-bottom: 4px; }
.doctor-badge span { color: var(--text-soft); font-size: 0.85rem; }

.pill-group { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.pill { border: 1px solid var(--border); background: var(--white); padding: 10px 14px; border-radius: 999px; color: var(--text-soft); font-size: 0.92rem; }

/* ═══════════════════════════════════════════
   INTRO VIDEO
═══════════════════════════════════════════ */
.intro-video-wrapper {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 32px;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.intro-video-frame {
  background: #000;
  aspect-ratio: 16 / 9;
  width: 100%;
}
.intro-video-frame video { width: 100%; height: 100%; object-fit: cover; }
.intro-video-caption { padding: 32px 32px 32px 0; }
.caption-badge {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.caption-badge img { width: 52px; height: 52px; object-fit: contain; border-radius: 12px; background: var(--accent); padding: 4px; }
.caption-badge strong { display: block; color: var(--primary-dark); font-size: 0.95rem; margin-bottom: 3px; }
.caption-badge span { color: var(--text-soft); font-size: 0.82rem; }
.intro-video-caption p { color: var(--text-soft); font-style: italic; line-height: 1.7; font-size: 0.95rem; }

/* ═══════════════════════════════════════════
   SERVICIOS — CARDS GRID (3 columnas)
═══════════════════════════════════════════ */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.service-card, .photometry-card, .video-card, .contact-card, .map-card, .feature-mini-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.service-card { overflow: hidden; transition: var(--transition); }
.service-card:hover, .video-card:hover { transform: translateY(-6px); }
.service-card img { width: 100%; height: 260px; object-fit: cover; }
.card-body { padding: 24px; }
.card-body h3, .video-content h3, .photometry-card h3, .contact-card h3, .feature-mini-card h3 { margin-bottom: 10px; font-size: 1.18rem; }
.mini-list { margin-top: 14px; }
.mini-list li { position: relative; padding-left: 20px; margin-bottom: 8px; color: var(--text-soft); font-size: 0.94rem; }
.mini-list li::before { content: "•"; position: absolute; left: 0; top: 0; color: var(--primary); font-size: 1.2rem; line-height: 1; }

.card-toggle {
  margin-top: 6px;
  background: rgba(95, 195, 190, 0.08);
  border: 1.5px solid var(--primary);
  border-radius: 999px;
  padding: 9px 10px 9px 20px;
  color: var(--primary-dark);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
}
.card-toggle:hover {
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.card-toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s ease, color 0.3s ease;
}
.card-toggle-icon::before {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
}
.card-toggle:hover .card-toggle-icon { background: var(--white); color: var(--primary-dark); }
.card-toggle[aria-expanded="true"] .card-toggle-icon { transform: rotate(180deg); }

.card-details {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-details.open { grid-template-rows: 1fr; }
.card-details-inner {
  overflow: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.card-details.open .card-details-inner {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease 0.12s, transform 0.4s ease 0.12s;
}
.card-details-inner > p { margin-top: 14px; }
.card-cta { display: inline-block; margin-top: 16px; }

/* ═══════════════════════════════════════════
   TERAPIA DE LUZ ROJA — tarjeta ancha
═══════════════════════════════════════════ */
.light-therapy-row {
  margin-top: 24px;
}

.service-card--wide {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.service-card--wide img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  border-radius: 0;
}

.service-card--wide .card-body {
  padding: 32px 36px;
}

/* Badge dentro de la tarjeta ancha */
.card-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary-dark);
  background: rgba(95, 195, 190, 0.14);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* Grid de beneficios dentro de la tarjeta ancha */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 22px;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(95,195,190,0.07);
  border: 1px solid rgba(95,195,190,0.18);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.benefit-icon {
  font-size: 1.3rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.benefit-item strong {
  display: block;
  font-size: 0.9rem;
  color: var(--primary-dark);
  margin-bottom: 3px;
}

.benefit-item span {
  font-size: 0.82rem;
  color: var(--text-soft);
  line-height: 1.4;
}

/* ═══════════════════════════════════════════
   FEATURE MINI GRID (Regenerativa split)
═══════════════════════════════════════════ */
.feature-mini-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 24px; }
.feature-mini-card { padding: 22px; }

/* ═══════════════════════════════════════════
   GALERÍA DE LA CLÍNICA
═══════════════════════════════════════════ */
.clinic-gallery {
  display: grid;
  grid-template-columns: 1.3fr 0.85fr 0.85fr;
  gap: 20px;
  align-items: stretch;
}
.clinic-photo {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  cursor: default;
}
.clinic-photo img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.clinic-photo.clinic-large img { height: 100%; min-height: 320px; }
.clinic-photo:hover img { transform: scale(1.04); }
.clinic-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(15,67,118,0.85), transparent);
  color: var(--white);
  padding: 28px 18px 16px;
  font-size: 0.9rem;
  font-weight: 600;
}

/* ═══════════════════════════════════════════
   FOTOMETRÍA
═══════════════════════════════════════════ */
.photometry-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-bottom: 28px; }
.photometry-card { padding: 28px; }

/* TABS */
.tabs-wrapper { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 24px; margin-bottom: 22px; }
.tabs-nav { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.tab-btn { padding: 12px 18px; border: 1px solid var(--border); background: #f7fafb; color: var(--text); border-radius: 999px; font-weight: 600; cursor: pointer; transition: var(--transition); }
.tab-btn.active, .tab-btn:hover { background: var(--primary-dark); color: var(--white); border-color: var(--primary-dark); }
.tab-content { display: none; }
.tab-content.active { display: block; }
.tab-list { margin-top: 14px; }
.tab-list li { position: relative; padding-left: 24px; margin-bottom: 10px; color: var(--text-soft); }
.tab-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary-dark); font-weight: 700; }

/* ACCORDION */
.accordion { display: grid; gap: 14px; }
.accordion-item { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow); }
.accordion-header { width: 100%; background: transparent; border: none; padding: 18px 22px; text-align: left; display: flex; justify-content: space-between; gap: 16px; align-items: center; font-weight: 600; cursor: pointer; color: var(--text); }
.accordion-header span { font-size: 1.4rem; color: var(--primary-dark); }
.accordion-body { display: none; padding: 0 22px 20px; }
.accordion-item.active .accordion-body { display: block; }

/* ═══════════════════════════════════════════
   VIDEOS
═══════════════════════════════════════════ */
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.video-card { overflow: hidden; }
.video-frame { background: #000; aspect-ratio: 9 / 16; }
.video-frame video { width: 100%; height: 100%; object-fit: cover; }
.video-content { padding: 22px; }

/* ═══════════════════════════════════════════
   CONTACTO
═══════════════════════════════════════════ */
.contact-cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 24px; }
.contact-card, .map-card { padding: 30px; }
.contact-item { margin-bottom: 18px; }
.contact-item strong { display: block; margin-bottom: 4px; }
.contact-item span { color: var(--text-soft); }
.map-card iframe { width: 100%; min-height: 360px; border: 0; border-radius: var(--radius-md); }

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
.footer { background: #102e52; color: rgba(255,255,255,0.86); padding-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 1fr; gap: 30px; padding-bottom: 30px; }
.footer-logo { margin-bottom: 16px; }
.footer-logo-img {
  width: 120px; height: auto; object-fit: contain; border-radius: 12px;
  filter: invert(1) brightness(1.5);
}
.footer h3, .footer h4 { color: var(--white); margin-bottom: 14px; }
.footer p, .footer li, .footer a { color: rgba(255,255,255,0.78); font-size: 0.95rem; }
.footer li { margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); text-align: center; padding: 18px 0; }

/* ═══════════════════════════════════════════
   BACK TO TOP
═══════════════════════════════════════════ */
.back-to-top {
  position: fixed; right: 24px; bottom: 24px;
  width: 48px; height: 48px; border-radius: 50%; border: none;
  background: var(--primary-dark); color: var(--white); font-size: 1.2rem;
  cursor: pointer; box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transition: var(--transition); z-index: 999;
}
.back-to-top.show { opacity: 1; visibility: visible; }

/* ═══════════════════════════════════════════
   REVEAL ANIMATIONS
═══════════════════════════════════════════ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.12s; }
.delay-2 { transition-delay: 0.24s; }

/* ═══════════════════════════════════════════
   RESPONSIVE — 1100px
═══════════════════════════════════════════ */
@media (max-width: 1100px) {
  .nav-container { grid-template-columns: auto 1fr auto; }
  .social-header { display: none; }
  .hero-grid,
  .section-grid,
  .split-grid,
  .form-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .cards-grid,
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .intro-video-wrapper { grid-template-columns: 1fr; }
  .intro-video-caption { padding: 24px; }
  .clinic-gallery { grid-template-columns: 1fr 1fr; }
  .clinic-photo.clinic-large { grid-column: span 2; }
  .photometry-layout { grid-template-columns: 1fr; }
  .reverse .split-image { order: 0; }
  .reverse .split-content { order: 0; }

  /* Tarjeta ancha: en columna */
  .service-card--wide {
    grid-template-columns: 1fr;
  }
  .service-card--wide img {
    height: 280px;
    min-height: unset;
  }
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — 768px
═══════════════════════════════════════════ */
@media (max-width: 768px) {
  .nav {
    position: absolute; top: 88px; left: 0; right: 0;
    background: var(--white); border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow); padding: 20px;
    display: none; flex-direction: column; align-items: flex-start;
  }
  .nav.open { display: flex; }
  .menu-toggle { display: block; justify-self: end; }
  .nav-container { grid-template-columns: auto 1fr auto; }
  .hero, .section { padding: 74px 0; }
  .hero-highlights,
  .cards-grid,
  .video-grid,
  .feature-mini-grid { grid-template-columns: 1fr; }
  .clinic-gallery { grid-template-columns: 1fr; }
  .clinic-photo.clinic-large { grid-column: auto; }
  .hero-image img, .section-image img, .split-image img { min-height: 340px; }
  .logo-text { display: none; }
  .banner-img { max-height: 180px; border-radius: var(--radius-md); }
  .footer-grid { grid-template-columns: 1fr; }

  /* Tarjeta ancha: columna única */
  .service-card--wide {
    grid-template-columns: 1fr;
  }
  .service-card--wide img {
    height: 220px;
    min-height: unset;
  }
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  .service-card--wide .card-body {
    padding: 24px;
  }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — 520px
═══════════════════════════════════════════ */
@media (max-width: 520px) {
  .btn, .contact-cta-row .btn { width: 100%; }
  .hero-actions, .contact-cta-row { flex-direction: column; }
  .tab-btn { width: 100%; }
}