/* layout.css — cabecera, secciones, retículas y pie. Sin sombras ni efectos. */

/* ---------- Cabecera ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
  flex: none;
}
/* El PNG es cuadrado (pato + lettering); en cabecera y pie se recorta el pato. */
.brand img { width: 42px; height: 28px; object-fit: cover; object-position: 50% 0; }
.brand-name {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.1;
}
.brand-subtitle {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.4;
}

.nav { display: flex; gap: 0.25rem; margin-left: auto; }
.nav a {
  display: block;
  padding: 0.45rem 0.7rem;
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--muted);
  border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--teal); }
.nav a.is-current { color: var(--ink); border-bottom-color: var(--accent); }

.header-action { display: flex; align-items: center; gap: 0.5rem; flex: none; }

.menu-button {
  display: none;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  padding: 0.45rem 0.6rem;
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
}
.menu-button:hover { border-color: var(--teal); color: var(--teal); }

/* ---------- Secciones ---------- */
.section { padding: 4.5rem 0; }
.section + .section { border-top: 1px solid var(--border); }
.section.alt { background: var(--bg-alt); }
.section.alt + .section.alt { border-top: 0; }
.section-head { margin-bottom: 2rem; }
.section-lead { color: var(--muted); max-width: var(--measure); font-size: 1.0625rem; }

/* ---------- Portada ---------- */
.hero { background: var(--ink); color: #fff; padding: 4.25rem 0 3.75rem; }
.hero h1 { color: #fff; max-width: 20ch; }
.hero .eyebrow { color: #fff; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 208px;
  gap: 3rem;
  align-items: start;
}
.hero-copy .intro {
  color: var(--on-dark);
  font-size: 1.0625rem;
  max-width: 56ch;
}
.emblem {
  margin: 0;
  background: #fff;
  padding: 0.85rem;
  border-bottom: 3px solid var(--accent);
}
.emblem img { width: 100%; }

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin: 2.5rem 0 0;
  padding: 0;
}
.facts div { border-top: 2px solid var(--accent); padding-top: 0.6rem; }
.facts dt {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.3rem;
}
.facts dd { margin: 0; font-size: 0.9375rem; color: var(--on-dark); }

/* ---------- Retículas de contenido ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
  align-items: stretch;
}

.agenda-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2.5rem 3rem;
}

.join-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

.steps { list-style: none; counter-reset: paso; margin: 1.5rem 0 1.25rem; }
.steps li {
  counter-increment: paso;
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 1.1rem;
}
.steps li::before {
  content: counter(paso);
  position: absolute;
  left: 0;
  top: 0.05rem;
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  font-size: 0.8125rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--teal);
  border: 1px solid var(--accent);
}
.note {
  border-left: 2px solid var(--border);
  padding-left: 0.9rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--gap);
  align-items: start;
}

/* ---------- Pie ---------- */
.footer { border-top: 1px solid var(--border); padding: 2.5rem 0 2rem; }
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 1.5rem 2rem;
  align-items: start;
}
.footer-brand { display: flex; gap: 0.85rem; align-items: center; }
.footer-brand img { width: 46px; height: 30px; object-fit: cover; object-position: 50% 0; flex: none; }
.footer-brand p { margin: 0; font-size: 0.875rem; color: var(--muted); }
.footer nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer nav a { font-size: 0.875rem; text-decoration: none; }
.footer nav a:hover { text-decoration: underline; }
.legal {
  grid-column: 1 / -1;
  font-size: 0.8125rem;
  color: var(--grey);
  margin: 0.5rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-soft);
}

/* ---------- Adaptación ---------- */
@media (max-width: 900px) {
  .section { padding: 3.5rem 0; }
  .hero { padding: 3.25rem 0 3rem; }
  .hero-grid { grid-template-columns: 1fr; gap: 2.25rem; }
  .emblem { max-width: 168px; }
  .facts { grid-template-columns: 1fr 1fr; gap: 1.25rem 1.75rem; margin-top: 2rem; }
  .join-grid, .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .agenda-grid { grid-template-columns: 1fr; gap: 2rem; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }

  .header-inner { min-height: 64px; gap: 1rem; }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    padding: 0.5rem 1.5rem 1rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
  }
  .nav a { padding: 0.7rem 0; border-bottom: 1px solid var(--border-soft); }
  .nav a.is-current { border-bottom-color: var(--border-soft); }
  .nav.open { display: flex; }
  .menu-button { display: inline-block; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 1.15rem; }
  .section { padding: 2.75rem 0; }
  .grid-3 { grid-template-columns: 1fr; }
  .agenda-routine { columns: 1; }
  .facts { grid-template-columns: 1fr; }
  .header-action .btn { display: none; }
  .brand-subtitle { display: none; }
}