/* Buceo Estela — hoja de estilos única del sitio
   Mobile-first, sin dependencias externas (sin CDN, sin llamadas a Google Fonts
   en producción) para minimizar bloqueo de render y proteger LCP/CLS/INP.
   La tipografía (Manrope) se auto-aloja como fuente variable en
   assets/fonts/manrope-variable.woff2: un único fichero de ~24 KB cubre
   todos los pesos de 400 a 800. */

@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("/assets/fonts/manrope-variable.woff2") format("woff2-variations"),
       url("/assets/fonts/manrope-variable.woff2") format("woff2");
}

:root {
  --color-deep: #052236;
  --color-deep-2: #0a3a56;
  --color-sea: #0b5b78;
  --color-teal: #0fa3a3;
  --color-teal-light: #5fd0c9;
  --color-sand: #f6f3ea;
  --color-sand-dark: #eae4d3;
  --color-ink: #0d2330;
  --color-ink-soft: #385163;
  --color-white: #ffffff;
  --color-danger: #b3441e;
  --color-ok: #1f7a4d;
  --color-warn: #b8860b;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(5, 34, 54, 0.12);
  --shadow-sm: 0 4px 14px rgba(5, 34, 54, 0.10);
  --max-width: 1180px;

  --font-body: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
svg { width: 20px; height: 20px; flex-shrink: 0; }
a { color: inherit; }
h1, h2, h3, h4 {
  font-family: var(--font-display); font-weight: 800; letter-spacing: -0.02em;
  line-height: 1.12; margin: 0 0 .5em; color: var(--color-deep);
}
h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.2em; }
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}
section { padding: 56px 0; }
.section-sand { background: var(--color-sand); }
.hero h1, .hero h2, .hero h3,
.landing-hero h1, .landing-hero h2, .landing-hero h3 { color: var(--color-white); }
.eyebrow {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--color-teal);
  margin-bottom: .6em;
}
.lead { font-size: 1.1rem; color: var(--color-ink-soft); }
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--color-teal);
  color: #fff; padding: 10px 16px; z-index: 200; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  font-size: .98rem;
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary { background: var(--color-teal); color: var(--color-deep); }
.btn-primary:hover { background: var(--color-teal-light); }
.btn-outline { border-color: rgba(255,255,255,.55); color: inherit; }
.btn-outline:hover { border-color: var(--color-teal); }
.btn-dark { background: var(--color-deep); color: var(--color-white); }
.btn-dark:hover { background: var(--color-deep-2); }
.btn-whatsapp { background: #22a55a; color: #fff; }
.btn-whatsapp:hover { background: #1c8c4b; }
.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: 9px 16px; font-size: .88rem; }

/* ---------- Header / navegación ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(5, 34, 54, .96);
  backdrop-filter: saturate(150%) blur(6px);
  color: var(--color-white);
}
.header-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: #fff; }
@media (max-width: 919px) {
  .brand { margin-left: 12px; }
}
.brand img { height: 62px; width: 62px; border-radius: 50%; background: #fff; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--font-display); font-size: 1.15rem; }
.brand-text span { font-size: .68rem; letter-spacing: .04em; color: var(--color-teal-light); text-transform: uppercase; }

.nav-toggle {
  position: relative; z-index: 110;
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid rgba(255,255,255,.3); border-radius: 8px;
  color: #fff; width: 42px; height: 42px; cursor: pointer;
  margin-right: 12px;
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icon-menu { display: inline-flex; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-menu { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: inline-flex; }

.main-nav {
  position: fixed; inset: 0 0 0 auto; width: min(320px, 86vw); height: 100vh;
  background: var(--color-deep);
  padding: 90px 24px 24px;
  transform: translateX(100%);
  transition: transform .25s ease;
  overflow-y: auto;
  box-shadow: -12px 0 30px rgba(0,0,0,.3);
}
.main-nav.is-open { transform: translateX(0); }
.main-nav ul { list-style: none; margin: 0; padding: 0; }
.main-nav > ul > li { border-bottom: 1px solid rgba(255,255,255,.08); }
.main-nav a { display: block; padding: 14px 4px; text-decoration: none; color: #fff; font-weight: 600; }
.main-nav .nav-cta a.btn, .main-nav .nav-cta a.lang-link { display: inline-flex; }
.main-nav .submenu { list-style: none; margin: 0 0 10px; padding: 0 0 0 12px; }
.main-nav .submenu a { padding: 10px 4px; font-weight: 500; color: var(--color-teal-light); font-size: .95rem; }
.nav-cta { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.lang-switch { display: flex; gap: 6px; }
.lang-link {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 9px 14px; border-radius: 999px; font-size: .85rem; font-weight: 700;
  color: rgba(255,255,255,.75); text-decoration: none; border: 1px solid rgba(255,255,255,.25);
  white-space: nowrap;
}
.lang-link.is-active { color: #fff; border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.1); }
.lang-flag { font-size: 1.05rem; line-height: 1; }
.nav-backdrop {
  position: fixed; inset: 0; background: rgba(3,15,24,.55);
  opacity: 0; pointer-events: none; transition: opacity .25s ease; z-index: 90;
}
.nav-backdrop.is-open { opacity: 1; pointer-events: auto; }

@media (min-width: 920px) {
  .nav-toggle { display: none; }
  .main-nav {
    position: static; width: auto; height: auto; transform: none; box-shadow: none;
    background: transparent; padding: 0; overflow: visible;
  }
  .main-nav > ul { display: flex; align-items: center; gap: 4px; }
  .main-nav > ul > li { border: 0; position: relative; }
  .main-nav > ul > li > a { padding: 10px 14px; border-radius: 999px; font-size: .95rem; }
  .main-nav > ul > li > a:hover { background: rgba(255,255,255,.08); }
  .main-nav .submenu {
    position: absolute; top: 100%; left: 0; min-width: 240px;
    background: var(--color-deep-2); border-radius: 10px; padding: 8px; margin: 6px 0 0;
    box-shadow: var(--shadow);
    opacity: 0; visibility: hidden; transform: translateY(6px);
    transition: opacity .15s ease, transform .15s ease, visibility .15s ease;
  }
  .main-nav li:hover > .submenu,
  .main-nav li:focus-within > .submenu { opacity: 1; visibility: visible; transform: translateY(0); }
  .main-nav .submenu a { padding: 9px 12px; border-radius: 6px; }
  .main-nav .submenu a:hover { background: rgba(255,255,255,.08); }
  .nav-cta { flex-direction: row; margin-top: 0; margin-left: 8px; }
  .nav-cta .icon-only-desktop {
    width: 42px; height: 42px; padding: 0; justify-content: center; border-radius: 50%;
  }
  .nav-cta .icon-only-desktop .btn-label { display: none; }
  .lang-switch { margin-left: 2px; }
  .lang-link { padding: 8px 10px; font-size: .78rem; }
  .nav-backdrop { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  background-color: var(--color-deep);
  /* --hero-img se define inline por página (build/generate.py); las capas de
     degradado viven aquí para no depender de que el inline no las pise. */
  background-image:
    linear-gradient(105deg, rgba(2,14,23,.72) 0%, rgba(2,14,23,.5) 48%, rgba(2,14,23,.2) 82%),
    linear-gradient(180deg, rgba(5,34,54,.2) 0%, rgba(5,34,54,.3) 55%, rgba(5,34,54,.55) 100%),
    var(--hero-img, none);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 72px 0 64px;
}
.hero-inner { max-width: 720px; }
.hero .eyebrow { color: var(--color-teal-light); text-shadow: 0 1px 10px rgba(0,0,0,.6); }
.hero h1 { text-shadow: 0 2px 20px rgba(0,0,0,.55); }
.hero p.lead { color: rgba(255,255,255,.95); text-shadow: 0 1px 14px rgba(0,0,0,.6); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.hero-ctas .btn-outline { background: rgba(3,20,32,.35); border-color: rgba(255,255,255,.7); }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 18px; margin-top: 26px; font-size: .9rem;
  color: rgba(255,255,255,.92); text-shadow: 0 1px 8px rgba(0,0,0,.5);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta .ssi-badge {
  background: #fff; color: var(--color-ink); text-shadow: none;
  padding: 5px 12px 5px 8px; border-radius: 999px; gap: 7px;
}

/* ---------- Trust bar ---------- */
.trust-bar {
  background: var(--color-sand-dark);
  padding: 16px 0;
}
.trust-bar .container {
  display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; justify-content: center;
  font-size: .88rem; color: var(--color-ink-soft); text-align: center;
}
.trust-bar strong { color: var(--color-deep); }
.trust-bar .container span { display: inline-flex; align-items: center; gap: 6px; }
.trust-logo { height: 20px; width: auto; }

/* ---------- Grids de tarjetas ---------- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column;
  text-decoration: none;
  color: inherit;
  border: 1px solid rgba(5,34,54,.06);
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-media { aspect-ratio: 4/3; overflow: hidden; background: var(--color-sand); }
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-body h3 { margin: 0; }
.card-body p { margin: 0; color: var(--color-ink-soft); font-size: .95rem; }
.card-foot { margin-top: auto; padding-top: 10px; font-weight: 700; color: var(--color-sea); font-size: .92rem; }

.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: .72rem; font-weight: 800; letter-spacing: .03em;
  text-transform: uppercase; padding: 4px 10px; border-radius: 999px;
}
.badge-baja { background: #e2f4ea; color: var(--color-ok); }
.badge-media { background: #fbf0da; color: var(--color-warn); }
.badge-alta { background: #fbe3da; color: var(--color-danger); }

.dive-stats { display: flex; flex-wrap: wrap; gap: 10px; margin: 4px 0; }
.dive-stats span {
  font-size: .8rem; background: var(--color-sand); color: var(--color-ink-soft);
  padding: 4px 10px; border-radius: 999px;
}

/* ---------- Landing comercial de curso/inmersión ---------- */
.landing-hero {
  background: var(--color-deep);
  color: #fff;
  padding: 40px 0 32px;
}
.breadcrumbs { font-size: .82rem; color: rgba(255,255,255,.7); margin-bottom: 14px; }
.breadcrumbs a { color: rgba(255,255,255,.85); text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }
.landing-key-facts {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 14px;
  margin-top: 22px;
}
.key-fact {
  background: rgba(255,255,255,.08); border-radius: var(--radius-sm); padding: 14px 16px;
}
.key-fact .label { font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--color-teal-light); }
.key-fact .value { font-size: 1.05rem; font-weight: 700; margin-top: 2px; }

.layout-2col { display: grid; grid-template-columns: 1fr; gap: 40px; }
@media (min-width: 900px) {
  .layout-2col { grid-template-columns: 1.6fr 1fr; align-items: start; }
}
.sticky-box { position: sticky; top: 96px; }
.about-photo img {
  width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius);
  box-shadow: var(--shadow); aspect-ratio: 4/3;
}

.includes-list, .requirements-list {
  list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px;
}
.includes-list li, .requirements-list li {
  display: flex; gap: 10px; align-items: flex-start; font-size: .95rem;
}
.includes-list svg, .requirements-list svg { flex: none; margin-top: 3px; width: 18px; height: 18px; color: var(--color-teal); }
.excludes-list svg { color: var(--color-danger); }
.excludes-list li { color: var(--color-ink-soft); }

.booking-card {
  background: var(--color-white); border: 1px solid rgba(5,34,54,.08);
  border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 22px;
}
.booking-card .price { font-size: 1.4rem; font-weight: 800; color: var(--color-deep); margin-bottom: 4px; }
.booking-card .price-list { list-style: none; margin: 0 0 4px; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.booking-card .price-list li { display: flex; justify-content: space-between; gap: 10px; font-size: .92rem; color: var(--color-ink-soft); }
.booking-card .price-list li strong { color: var(--color-deep); font-weight: 800; }
.booking-card .stack { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.booking-card hr { border: none; border-top: 1px solid rgba(5,34,54,.08); margin: 16px 0; }
.booking-fallback { font-size: .82rem; color: var(--color-ink-soft); margin-top: 12px; }

/* Gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 10px; }
.gallery figure { margin: 0; }
.gallery img { border-radius: var(--radius-sm); aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.gallery figcaption { font-size: .72rem; color: var(--color-ink-soft); margin-top: 4px; opacity: .8; }

/* FAQ */
.faq-item {
  border-bottom: 1px solid rgba(5,34,54,.1);
  padding: 6px 0;
}
.faq-item summary {
  cursor: pointer; font-weight: 700; padding: 14px 4px; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .chev { transition: transform .2s ease; flex: none; width: 18px; height: 18px; color: var(--color-teal); }
.faq-item[open] summary .chev { transform: rotate(45deg); }
.faq-item p { padding: 0 4px 16px; color: var(--color-ink-soft); }

/* Banner promocional (p. ej. snorkel en home) */
.promo-banner {
  display: grid; grid-template-columns: 1fr; gap: 0;
  border-radius: var(--radius); overflow: hidden;
  background: var(--color-white); box-shadow: var(--shadow-sm);
  border: 1px solid rgba(5,34,54,.06);
}
.promo-banner img { width: 100%; height: 100%; object-fit: cover; display: block; aspect-ratio: 16/9; }
.promo-banner-body { padding: 28px; display: flex; flex-direction: column; justify-content: center; gap: 10px; }
@media (min-width: 760px) {
  .promo-banner { grid-template-columns: 1fr 1.2fr; }
  .promo-banner img { aspect-ratio: auto; }
}

/* Guía submarina hub */
.dive-filter-hint { color: var(--color-ink-soft); font-size: .9rem; }

/* Contacto */
.contact-grid { display: grid; gap: 28px; grid-template-columns: 1fr; }
@media (min-width: 880px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-block { background: var(--color-sand); border-radius: var(--radius); padding: 26px; }
.contact-block dl { margin: 0; }
.contact-block dt { font-weight: 700; color: var(--color-deep); margin-top: 14px; font-size: .85rem; text-transform: uppercase; letter-spacing: .03em; }
.contact-block dd { margin: 4px 0 0; }
.map-embed { width: 100%; border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 8px; }
.map-embed iframe { border: 0px; width: 100%; min-height: 400px; display: block; }
.hp-field { position: absolute; left: -9999px; top: -9999px; }
.pending-note {
  background: #fff7e6; border: 1px dashed #d8ad3f; color: #7a5300;
  padding: 10px 14px; border-radius: var(--radius-sm); font-size: .85rem; margin-top: 6px;
}
.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-field label { font-weight: 700; font-size: .88rem; }
.form-field input, .form-field textarea, .form-field select {
  padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid rgba(5,34,54,.2);
  font: inherit; background: #fff;
}
.form-field textarea { min-height: 130px; resize: vertical; }

/* Footer */
.site-footer { background: var(--color-deep); color: rgba(255,255,255,.85); padding: 48px 0 24px; }
.footer-grid { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); }
.footer-grid h4 { color: #fff; font-family: var(--font-body); font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 14px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.footer-grid a { text-decoration: none; color: rgba(255,255,255,.75); font-size: .92rem; }
.footer-grid a:hover { color: var(--color-teal-light); }
.footer-bottom {
  margin-top: 36px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; flex-wrap: wrap; gap: 10px 20px; justify-content: space-between; align-items: center;
  font-size: .78rem; color: rgba(255,255,255,.55);
}
.footer-bottom a { color: rgba(255,255,255,.55); }
.social-row { display: flex; gap: 10px; }
.social-row a {
  width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,.08);
  display: inline-flex; align-items: center; justify-content: center;
}
.social-row svg { width: 18px; height: 18px; }

/* Botones flotantes fijos (WhatsApp + Reservar ahora) */
.float-whatsapp, .float-reserve {
  position: fixed; right: 18px; z-index: 80;
  width: 58px; height: 58px; border-radius: 50%;
  color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 22px rgba(0,0,0,.28); text-decoration: none;
}
.float-whatsapp { bottom: 18px; background: #22a55a; }
.float-reserve { bottom: 88px; background: var(--color-teal); }
.float-whatsapp svg, .float-reserve svg { width: 28px; height: 28px; }

@media (max-width: 640px) {
  .float-whatsapp, .float-reserve { width: 50px; height: 50px; right: 14px; }
  .float-whatsapp { bottom: 14px; }
  .float-reserve { bottom: 76px; }
  .float-whatsapp svg, .float-reserve svg { width: 24px; height: 24px; }
}

/* Utilidades */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.stack-gap { display: flex; flex-direction: column; gap: 16px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.max-60 { max-width: 640px; }

.legal-content h2 { margin-top: 1.6em; }
.legal-content { max-width: 780px; }

.aside-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 4px; }
.aside-list a {
  display: block; padding: 10px 12px; border-radius: var(--radius-sm); text-decoration: none;
  color: var(--color-ink); font-size: .92rem;
}
.aside-list a:hover, .aside-list a.is-active { background: var(--color-sand); color: var(--color-sea); font-weight: 700; }

@media (max-width: 640px) {
  section { padding: 40px 0; }
  .hero { padding: 48px 0 40px; }
}