/* Harrier Signals site stylesheet. Light body, navy bookends, teal accents.
   The navy is the brand mark's own (#061f3a). No external fonts, no scripts. */

:root {
  --bg: #ffffff;
  --bg-soft: #f2f5f7;
  --bg-teal: #e9f3f2;
  --ink: #16283b;
  --ink-dim: #52667a;
  --line: #dde4ea;
  --navy: #061f3a;
  --navy-raised: #0b2a4a;
  --navy-line: #1d3a58;
  --navy-ink: #f2f5f8;
  --navy-dim: #a3b4c6;
  --sky: #7fa9d4;
  --sky-bright: #a8c8e8;
  --teal: #0f7f7c;
  --teal-deep: #0c6b68;
  --teal-soft: #bfdedd;
}

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

html { background: var(--bg); scroll-behavior: smooth; }

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--teal-soft); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--teal); }
a:focus-visible, .btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 2px; }

/* ---------- navigation, navy ---------- */

.nav { background: var(--navy); }
.nav .inner {
  max-width: 980px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
}
.nav .home {
  display: flex; align-items: center; gap: 10px; color: var(--navy-ink);
  text-decoration: none; font-weight: 700; letter-spacing: .06em; font-size: 14px;
}
.nav .home img { width: 30px; height: 30px; border-radius: 4px; }
.nav .links { display: flex; gap: 16px; flex-wrap: wrap; margin-left: auto; align-items: center; }
.nav .links a {
  text-decoration: none; font-size: 13.5px; color: var(--navy-dim);
  padding: 4px 2px; border-bottom: 1px solid transparent;
}
.nav .links a:hover { color: var(--navy-ink); }
.nav .links a.here { color: var(--navy-ink); border-bottom-color: var(--sky); }
.nav .links a.cta {
  color: #ffffff; background: var(--teal); border-radius: 6px;
  padding: 6px 12px; font-weight: 650;
}
.nav .links a.cta:hover { background: var(--teal-deep); }

/* ---------- hero band, navy ---------- */

.hero-band {
  background:
    radial-gradient(900px 420px at 50% -80px, rgba(127, 169, 212, 0.14), transparent 70%),
    var(--navy);
  color: var(--navy-ink);
  padding: 56px 24px 60px;
}
.hero { max-width: 980px; margin: 0 auto; text-align: center; }
.hero img.logo { width: 180px; max-width: 56vw; height: auto; }
h1 {
  margin: 22px auto 0; font-size: clamp(27px, 4.6vw, 42px); font-weight: 700;
  line-height: 1.15; letter-spacing: -0.012em; max-width: 20em;
}
.hero .lede { margin: 18px auto 0; max-width: 42em; color: var(--navy-dim); font-size: 17.5px; }
.hero .lede strong { color: var(--navy-ink); font-weight: 600; }
.hero .eyebrow { color: var(--sky); }
.hero .actions { margin-top: 28px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; align-items: center; }
.hero .pill { border-color: var(--navy-line); color: var(--sky); }

.wordmark { margin-top: 14px; }
.wordmark .top { font-size: 30px; font-weight: 700; letter-spacing: .05em; color: var(--navy-ink); }
.wordmark .sub {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px; letter-spacing: .55em; color: var(--sky); margin-top: 2px; text-indent: .55em;
}
.hero img.mark { width: 150px; max-width: 44vw; height: auto; }

/* ---------- shared bits ---------- */

.eyebrow {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11px; letter-spacing: .18em; color: var(--teal-deep);
  text-transform: uppercase; display: block;
}

.btn {
  display: inline-block; text-decoration: none; font-weight: 650; font-size: 15px;
  padding: 11px 22px; border-radius: 8px; letter-spacing: .01em;
}
.btn.primary { background: var(--teal); color: #ffffff; }
.btn.primary:hover { background: var(--teal-deep); }
.btn.ghost { border: 1px solid var(--navy-line); color: var(--navy-ink); }
.btn.ghost:hover { border-color: var(--sky); }

.pill {
  display: inline-block; font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 10.5px; letter-spacing: .14em; padding: 4px 10px 3px;
  border: 1px solid var(--teal-soft); border-radius: 99px; color: var(--teal-deep);
  white-space: nowrap;
}
.pill.dev { border-color: var(--line); color: var(--ink-dim); }

/* ---------- main, white ---------- */

main { width: 100%; max-width: 980px; margin: 0 auto; padding: 0 24px 56px; flex: 1; }
section { margin-top: 64px; }

.sec-head { max-width: 42em; }
.sec-head h2 { font-size: 24px; font-weight: 700; letter-spacing: -0.008em; margin-top: 6px; color: var(--navy); }
.sec-head p { color: var(--ink-dim); margin-top: 10px; font-size: 16px; }

.divider { display: block; width: 100%; max-width: 420px; margin: 64px auto 0; opacity: .8; }

/* ---------- cards ---------- */

.grid { margin-top: 26px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid.three { grid-template-columns: 1fr 1fr 1fr; }
.grid.four { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid.four { grid-template-columns: 1fr 1fr; } }
@media (max-width: 700px) { .grid, .grid.three, .grid.four { grid-template-columns: 1fr; } }

.card {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: 10px; padding: 22px 24px 18px;
  display: flex; flex-direction: column; gap: 10px;
  box-shadow: 0 1px 3px rgba(6, 31, 58, 0.06);
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
a.card { text-decoration: none; }
a.card:hover { border-color: var(--teal); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(6, 31, 58, 0.10); }
.card h3 { font-size: 17px; font-weight: 650; color: var(--navy); }
.card p { font-size: 14.5px; color: var(--ink-dim); flex: 1; }
.card .for {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11px; color: var(--teal-deep); letter-spacing: .04em;
}
.card .go { font-size: 13.5px; color: var(--teal-deep); font-weight: 600; }
.card.wide { grid-column: 1 / -1; }
.card.reads { border-color: var(--teal-soft); background: linear-gradient(180deg, var(--bg-teal), var(--bg)); }

/* ---------- buyers ---------- */

.buyers { margin-top: 26px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 700px) { .buyers { grid-template-columns: 1fr; } }
.buyer {
  background: var(--bg-soft); border-radius: 10px; padding: 18px 20px 16px;
  border-left: 3px solid var(--teal);
}
.buyer h3 { font-size: 15px; font-weight: 650; color: var(--navy); }
.buyer p { font-size: 14px; color: var(--ink-dim); margin-top: 6px; }

/* ---------- steps ---------- */

.steps { margin-top: 26px; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; counter-reset: step; }
@media (max-width: 700px) { .steps { grid-template-columns: 1fr; } }
.step { border-left: 2px solid var(--teal-soft); padding: 2px 0 4px 18px; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color: var(--teal); font-size: 12px; letter-spacing: .12em;
}
.step h3 { font-size: 16px; font-weight: 650; margin-top: 6px; color: var(--navy); }
.step p { font-size: 14.5px; color: var(--ink-dim); margin-top: 6px; }

/* ---------- sample alert, stays navy, it is the product ---------- */

.sample {
  margin-top: 26px; background: var(--navy); border: 1px solid var(--navy-line);
  border-radius: 12px; padding: 22px 24px; max-width: 560px;
  box-shadow: 0 10px 28px rgba(6, 31, 58, 0.18);
}
.sample .label {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 10.5px; letter-spacing: .16em; color: var(--navy-dim);
}
.sample .headline { margin-top: 12px; font-size: 17px; font-weight: 650; color: var(--navy-ink); }
.sample .body { margin-top: 8px; font-size: 14.5px; color: var(--navy-dim); }
.sample .meta {
  margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--navy-line);
  display: flex; flex-wrap: wrap; gap: 6px 18px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11.5px; color: var(--sky); letter-spacing: .04em;
}

.sample.wide { max-width: 680px; margin-left: auto; margin-right: auto; }

.sidebyside { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: start; margin-top: 26px; }
@media (max-width: 820px) { .sidebyside { grid-template-columns: 1fr; } }

/* ---------- prose and facts ---------- */

.prose { max-width: 42em; margin-top: 18px; }
.prose p { color: var(--ink-dim); font-size: 15.5px; }
.prose p + p { margin-top: 12px; }
.prose p strong { color: var(--ink); }

.factline {
  margin-top: 26px; border-left: 3px solid var(--teal);
  background: var(--bg-teal); border-radius: 0 10px 10px 0;
  padding: 14px 20px 14px 18px; max-width: 40em;
}
.factline p { font-size: 16px; color: var(--ink); }
.factline .src { margin-top: 6px; font-size: 12.5px; color: var(--ink-dim); }

.rings { display: block; margin: 26px auto 0; width: 220px; max-width: 60vw; }

/* ---------- page-end call, navy ---------- */

.closer {
  margin-top: 72px; border-radius: 14px; background:
    radial-gradient(500px 240px at 50% -60px, rgba(127, 169, 212, 0.16), transparent 70%),
    var(--navy);
  color: var(--navy-ink); padding: 38px 30px; text-align: center;
}
.closer h2 { font-size: 22px; font-weight: 700; }
.closer p { color: var(--navy-dim); margin: 10px auto 0; max-width: 36em; font-size: 15.5px; }
.closer .actions { margin-top: 22px; }

/* ---------- footer, navy ---------- */

footer { background: var(--navy); padding: 22px 24px 30px; margin-top: 64px; }
footer .inner {
  max-width: 980px; margin: 0 auto; display: flex; flex-wrap: wrap;
  gap: 8px 24px; justify-content: space-between; color: var(--navy-dim); font-size: 12.5px;
}