/* =====================================================
   Acuario El Estuario — identidad tomada del logo:
   insignia vintage, tinta negra sobre papel crudo,
   tipografía condensada en mayúsculas.
   ===================================================== */

:root {
  --ink: #1c1b1a;          /* negro tinta del logo */
  --paper: #f4efe4;        /* papel crudo, fondo de insignia vintage */
  --paper-dark: #e9e2d2;
  --teal: #0e6b66;         /* acento estuario: donde el río y el mar se encuentran */
  --teal-light: #9ec9c4;
  --whatsapp: #1faa53;
  --max: 1080px;

  --display: "Bebas Neue", "Oswald", Impact, sans-serif;
  --body: "Barlow", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.05;
}

h2 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin-bottom: 0.5em; }

a { color: var(--teal); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper); padding: 8px 16px; z-index: 100;
}
.skip-link:focus { left: 0; }

.kicker {
  font-family: var(--display);
  font-size: 1.1rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.6em;
}
.kicker--light { color: var(--teal-light); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 28px 12px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35); }
.btn svg { width: 22px; height: 22px; flex-shrink: 0; }

.btn--whatsapp {
  background: var(--whatsapp);
  border-color: var(--whatsapp);
  color: #fff;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.25);
}
.btn--ghost { background: transparent; color: var(--paper); border-color: var(--paper); }
.btn--ghost-light { color: var(--paper); border-color: var(--paper); }
.btn--dark { background: var(--ink); color: var(--paper); margin-top: 24px; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(ellipse at 50% -20%, #3a3a38 0%, var(--ink) 55%);
  color: var(--paper);
  text-align: center;
  padding: 64px 24px 80px;
  /* doble filete, como el borde de la insignia */
  border-bottom: 4px double var(--paper);
}

.hero__logo {
  margin: 0 auto 20px;
  width: min(320px, 70vw);
  height: auto;
  /* el logo es tinta negra: lo invertimos para fondo oscuro */
  filter: invert(1) hue-rotate(180deg);
}

.hero__tagline {
  font-family: var(--display);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 1rem;
  color: var(--teal-light);
  margin-bottom: 28px;
}

.hero__title {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  margin-bottom: 20px;
}

.hero__sub {
  max-width: 560px;
  margin: 0 auto 36px;
  font-size: 1.15rem;
  color: #d8d2c2;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.hero__hours {
  margin-top: 32px;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  color: #b5af9f;
}

/* ---------- Manifiesto ---------- */
.manifesto { padding: 88px 0; text-align: center; }

.manifesto__intro {
  max-width: 600px;
  margin: 0 auto 48px;
  font-size: 1.2rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  text-align: left;
}

.card {
  background: #fffdf7;
  border: 2px solid var(--ink);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 6px 6px 0 var(--paper-dark);
}

.card__num {
  font-family: var(--display);
  font-size: 2.2rem;
  color: var(--teal);
  display: block;
  margin-bottom: 8px;
}

.card h3 { font-size: 1.5rem; margin-bottom: 10px; }

/* ---------- Cómo funciona ---------- */
.how {
  background: var(--ink);
  color: var(--paper);
  padding: 88px 0;
}

.steps {
  list-style: none;
  counter-reset: paso;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.steps li {
  counter-increment: paso;
  border-top: 2px solid var(--teal-light);
  padding-top: 20px;
  position: relative;
}

.steps li::before {
  content: counter(paso, decimal-leading-zero);
  font-family: var(--display);
  font-size: 1.4rem;
  color: var(--teal-light);
  letter-spacing: 0.1em;
}

.steps h3 { font-size: 1.4rem; margin: 6px 0 10px; }
.steps p { color: #cfc9b9; }

.how__cta {
  margin-top: 56px;
  text-align: center;
}

.how__patience {
  margin-top: 20px;
  font-size: 1.1rem;
  font-style: italic;
  color: var(--teal-light);
}

/* ---------- Catálogo ---------- */
.catalog { padding: 88px 0; text-align: center; }

.catalog__grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 40px;
  text-align: left;
}

.catalog__grid li {
  background: #fffdf7;
  border: 2px solid var(--ink);
  border-radius: 12px;
  padding: 24px;
}

.catalog__grid span { font-size: 1.8rem; }
.catalog__grid h3 { font-size: 1.35rem; margin: 8px 0 6px; }
.catalog__grid p { font-size: 0.98rem; }

.catalog__note { margin-top: 36px; font-size: 1.1rem; }

/* ---------- Visita ---------- */
.visit {
  background: var(--paper-dark);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  padding: 88px 0;
}

.visit__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.visit__data div { margin-bottom: 24px; }

.visit__data dt {
  font-family: var(--display);
  font-size: 1.2rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
}

.hours-table th {
  text-align: left;
  font-weight: 600;
  padding-right: 24px;
}

.visit__badge {
  text-align: center;
  background: #fffdf7;
  border: 2px solid var(--ink);
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: 8px 8px 0 rgba(28, 27, 26, 0.15);
}

.visit__badge img { margin: 0 auto 20px; }

.visit__badge p {
  font-style: italic;
  font-size: 1.05rem;
}

/* ---------- FAQ ---------- */
.faq { padding: 88px 0; }

.faq details {
  background: #fffdf7;
  border: 2px solid var(--ink);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
}

.faq summary {
  cursor: pointer;
  font-family: var(--display);
  font-size: 1.3rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 16px 20px;
  list-style: none;
  position: relative;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  color: var(--teal);
  font-size: 1.5rem;
  line-height: 1;
}

.faq details[open] summary::after { content: "–"; }

.faq details p { padding: 0 20px 20px; }

/* ---------- CTA final ---------- */
.final-cta {
  background: var(--teal);
  color: var(--paper);
  text-align: center;
  padding: 80px 0;
}

.final-cta p { max-width: 520px; margin: 0 auto 32px; font-size: 1.15rem; }

.final-cta .btn--whatsapp { border-color: #fff; }

/* ---------- Footer ---------- */
.footer {
  background: var(--ink);
  color: #cfc9b9;
  padding: 64px 0 24px;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
}

.footer img { filter: invert(1) hue-rotate(180deg); margin-bottom: 12px; }

.footer h3 {
  font-size: 1.2rem;
  letter-spacing: 0.15em;
  color: var(--paper);
  margin-bottom: 12px;
}

.footer ul { list-style: none; }
.footer li { margin-bottom: 8px; }
.footer a { color: var(--teal-light); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

.footer__legal {
  text-align: center;
  margin-top: 48px;
  font-size: 0.85rem;
  color: #8a8474;
}

/* ---------- Botón flotante ---------- */
.fab {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--whatsapp);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  z-index: 50;
  transition: transform 0.15s ease;
}
.fab:hover { transform: scale(1.08); }
.fab svg { width: 30px; height: 30px; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .visit__grid { grid-template-columns: 1fr; }
  .hero { padding-top: 48px; }
}