/* ───────────────────────────────────────────────────────────────
   Cairn — shared marketing site styles
   Used by every page in ui_kits/marketing/.
   ─────────────────────────────────────────────────────────────── */

@import url('colors_and_type.css');

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); }
body {
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: var(--tracking-tight);
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
svg { display: block; }

/* ─────────── Top nav ─────────── */
.nav {
  position: relative; z-index: 10;
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; padding: 20px 40px; gap: 24px;
}
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-link {
  font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg); cursor: pointer;
  transition: color var(--dur-base) var(--ease-out);
  display: inline-flex; align-items: center; gap: 6px;
}
.nav-link:hover { color: var(--accent); }
.nav-link .caret { font-size: 8px; opacity: 0.55; }
.nav-brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 26px; letter-spacing: -0.04em;
}
.nav-brand img { width: 26px; height: 26px; }
.nav-cta {
  display: flex; gap: 12px; align-items: center; justify-content: flex-end;
}

/* ─────────── Buttons ─────────── */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  white-space: nowrap;
  font-family: var(--font-sans); font-size: 12px; font-weight: 500;
  padding: 11px 22px; border-radius: var(--radius-pill);
  letter-spacing: 0.14em; text-transform: uppercase;
  border: 0;
  transition: background var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}
.btn-primary { background: var(--action); color: var(--fg-onAccent); }
.btn-primary:hover { background: var(--action-hover); }
.btn-ghost { background: var(--bg); color: var(--fg); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }
.btn-ink { background: var(--bg); color: var(--fg); border: 1px solid var(--fg); }
.btn-ink:hover { color: var(--accent); border-color: var(--accent); }
.btn .play {
  display: inline-flex; align-items: center; justify-content: center;
  width: 18px; height: 18px; border-radius: 999px;
  background: var(--fg); color: var(--bg);
}
.btn-primary .play { background: var(--bg); color: var(--action); }

/* ─────────── Sections ─────────── */
.section {
  padding: 128px 40px;
  max-width: 1200px;
  margin: 0 auto;
}
.section + .section { padding-top: 0; }
.section-eyebrow {
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.20em; text-transform: uppercase;
  color: var(--fg-muted); margin-bottom: 16px;
}
.section h2 {
  margin: 0; font-size: 47px; line-height: 1.08;
  font-weight: 400; letter-spacing: -0.035em;
  max-width: 760px; text-wrap: balance;
}
.section h2 + p {
  margin: 16px 0 0; max-width: 620px;
  font-size: 18px; line-height: 1.43; letter-spacing: -0.04em;
  color: var(--fg-muted);
}

/* ─────────── 3-up card grid ─────────── */
.grid-3 {
  margin-top: 64px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.feature {
  border: 1px solid var(--border); border-radius: 8px;
  padding: 28px; background: var(--bg);
  display: flex; flex-direction: column; gap: 16px;
  min-height: 280px;
}
.feature .ic { color: var(--accent); }
.feature h3 { margin: 0; font-size: 22px; font-weight: 400; letter-spacing: -0.04em; line-height: 1.2; }
.feature p  { margin: 0; font-size: 15px; line-height: 1.5; letter-spacing: -0.04em; color: var(--fg-muted); }
.feature .mono-line {
  margin-top: auto;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.10em; color: var(--fg-muted); text-transform: uppercase;
  padding-top: 16px; border-top: 1px solid var(--border);
}

/* ─────────── Footer ─────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 64px 40px 32px;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 40px;
}
.footer-brand { display: flex; flex-direction: column; gap: 16px; }
.footer-brand .mark { display: inline-flex; align-items: center; gap: 8px; font-size: 22px; letter-spacing: -0.04em; }
.footer-brand .mark img { width: 22px; height: 22px; }
.footer-brand p { margin: 0; font-size: 13px; color: var(--fg-muted); max-width: 280px; letter-spacing: -0.04em; line-height: 1.5; }
.fcol h5 {
  margin: 0 0 16px; font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.16em; color: var(--fg-muted); text-transform: uppercase;
  font-weight: 400;
}
.fcol ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.fcol a { font-size: 13px; letter-spacing: -0.04em; cursor: pointer; }
.fcol a:hover { color: var(--accent); }
.footer-bottom {
  max-width: 1200px; margin: 64px auto 0;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.10em;
  color: var(--fg-muted); text-transform: uppercase;
}

/* ─────────── Demo modal ─────────── */
.modal { position: fixed; inset: 0; background: rgba(10,29,8,0.55); display: none; align-items: center; justify-content: center; z-index: 100; backdrop-filter: blur(6px); }
.modal.is-open { display: flex; }
.modal-inner {
  background: var(--bg); border-radius: 16px; padding: 32px;
  max-width: 720px; width: 90%; border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 16px;
}
.modal-inner h3 { margin: 0; font-size: 28px; letter-spacing: -0.04em; font-weight: 400; }
.modal-inner p { margin: 0; color: var(--fg-muted); letter-spacing: -0.04em; font-size: 15px; line-height: 1.5; }
.video-still {
  aspect-ratio: 16/9; background: url('assets/misty-valley.jpg') center/cover; border-radius: 8px;
  display: flex; align-items: center; justify-content: center; position: relative; cursor: pointer;
}
.video-still::before { content:''; position: absolute; inset: 0; border-radius: 8px; background: rgba(10,29,8,0.25); }
.video-still .play-big {
  position: relative; width: 64px; height: 64px; border-radius: 999px;
  background: var(--bg); color: var(--action);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.modal-close { align-self: flex-end; background: transparent; border: 0; color: var(--fg-muted); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; }

/* ─────────── Responsive ─────────── */
@media (max-width: 880px) {
  .grid-3 { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .section h2 { font-size: 34px; }
  .nav { grid-template-columns: 1fr auto; gap: 12px; padding: 16px 20px; }
  .nav-links, .nav-cta .btn-ghost { display: none; }
}