:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f7f8f9;
  --ink: #12161c;
  --ink-soft: #52585f;
  --ink-muted: #8a9099;
  --line: #e9ebee;
  --navy-900: #0a2036;
  --navy-700: #123253;
  --navy-500: #17395c;
  --accent: #17395c;
  --accent-ink: #ffffff;
  --accent-soft: #eaeff4;
  --gold: #d7a13b;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0f1215;
    --surface: #161a1f;
    --ink: #f2f4f6;
    --ink-soft: #b8bec6;
    --ink-muted: #767c85;
    --line: #262b32;
    --accent: #6fa3d8;
    --accent-ink: #0f1215;
    --accent-soft: #1b2734;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}
a { color: inherit; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
img { max-width: 100%; }

/* Nav */
nav.site-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
nav.site-nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; }
.logo img { height: 26px; display: block; }
@media (prefers-color-scheme: dark) { .logo img { filter: invert(1) brightness(1.4); } }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a.page-link { font-size: 14px; font-weight: 500; color: var(--ink-soft); text-decoration: none; }
.nav-links a.page-link:hover { color: var(--ink); }
.nav-links a.page-link.active { color: var(--ink); font-weight: 700; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--ink);
}
.nav-toggle svg { display: block; }

@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  nav.site-nav.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 12px 24px 20px;
  }
  nav.site-nav.menu-open .nav-links a.page-link { padding: 10px 0; width: 100%; }
  nav.site-nav.menu-open .nav-links .btn { margin-top: 8px; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}
.btn-primary { background: var(--gold); color: #1a1200; }
.btn-primary:hover { transform: translateY(-1px); opacity: 0.92; }
.btn-ghost-dark { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.35); }
.btn-ghost-dark:hover { background: rgba(255,255,255,0.16); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--surface); }

/* Page header band (subpages) - versión chica del hero de la portada */
.page-header {
  position: relative;
  overflow: hidden;
  padding: 64px 0 56px;
  background:
    linear-gradient(160deg, rgba(10,32,54,0.94) 0%, rgba(18,50,83,0.88) 60%, rgba(23,57,92,0.8) 100%),
    url("/assets/hero-torres-del-paine.jpg");
  background-size: cover;
  background-position: center 70%;
  color: #fff;
  text-align: center;
}
.page-header .eyebrow { justify-content: center; }
.page-header h1 { font-size: clamp(28px, 4vw, 40px); margin: 0 0 14px; }
.page-header p { color: #c7d1dc; max-width: 56ch; margin: 0 auto; font-size: 16px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #d7dee7;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  padding: 6px 14px;
  border-radius: 999px;
  margin: 0 0 22px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: #58e39a; box-shadow: 0 0 0 3px rgba(88,227,154,0.25); }

/* Sections */
section { padding: 64px 0; }
h2 { font-size: clamp(22px, 2.4vw, 28px); letter-spacing: -0.01em; margin: 0 0 40px; font-weight: 700; text-align: center; }
h2.left { text-align: left; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.step, .card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 24px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.step:hover, .card:hover { transform: translateY(-3px); box-shadow: 0 16px 32px -18px rgba(23,57,92,0.35); }
.step .icon, .card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent);
}
.step h3, .card h3 { font-size: 16px; margin: 0 0 8px; font-weight: 600; }
.step p, .card p { font-size: 14.5px; color: var(--ink-soft); margin: 0; }

.pilot-band { background: var(--surface); }
.pilot-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.pilot-card .badge {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(160deg, var(--navy-700), var(--navy-500));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  flex-shrink: 0;
}
.pilot-card .content { flex: 1; min-width: 240px; }
.pilot-card .label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-muted); margin-bottom: 6px; }
.pilot-card p { font-size: 15px; color: var(--ink-soft); margin: 0; max-width: 62ch; }
.pilot-card strong { color: var(--ink); }

.final-band {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-700));
  color: #fff;
  text-align: center;
}
.final-band h2 { color: #fff; margin-bottom: 12px; }
.final-band p { color: #c7d1dc; margin: 0 0 28px; font-size: 15px; }

footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  font-size: 13px;
  color: var(--ink-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* Reveal-on-scroll (ver assets/travi-site.js) */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }