/* Docently marketing + trust site. Self-contained: system fonts only, no
   external CDNs/fonts/trackers — keeps the site fast, crawler-friendly, and
   consistent with the privacy posture it describes. */

:root {
  --blue: #1d6fe0;
  --blue-deep: #1559b8;
  --ink: #18202e;
  --muted: #586475;
  --bg: #ffffff;
  --soft: #f4f8fd;
  --border: #e3e9f1;
  --radius: 14px;
  --maxw: 980px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue-deep); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---- header ---- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 92px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 25px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.2px;
}
.brand .mark {
  display: inline-block;
  object-fit: contain;
}
.site-header .brand .mark { width: 60px; height: 60px; }
.site-footer .brand .mark { width: 34px; height: 34px; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  margin-left: 22px;
}
.nav a:hover { color: var(--ink); }

/* ---- hero ---- */
.hero {
  background: radial-gradient(900px 460px at 80% -10%, #e9f1fd 0%, transparent 60%);
  padding: 72px 0 56px;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: -0.5px;
}
.hero p.lede {
  font-size: 20px;
  color: var(--muted);
  max-width: 640px;
  margin: 0 0 28px;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-block;
  padding: 13px 22px;
  border-radius: 30px;
  font-weight: 650;
  text-decoration: none;
  font-size: 16px;
  border: 2px solid transparent;
}
.btn-primary {
  background: linear-gradient(150deg, var(--blue), var(--blue-deep));
  color: #fff;
  box-shadow: 0 8px 22px rgba(21, 89, 184, 0.28);
}
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost { border-color: var(--border); color: var(--ink); background: #fff; }

/* ---- sections ---- */
section { padding: 56px 0; }
section.soft { background: var(--soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
h2 { font-size: clamp(24px, 3.4vw, 32px); margin: 0 0 8px; letter-spacing: -0.3px; }
.section-intro { color: var(--muted); max-width: 620px; margin: 0 0 32px; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.grid.two { grid-template-columns: repeat(2, 1fr); }
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.step-n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: 8px;
  background: #e8f1fd; color: var(--blue-deep);
  font-weight: 700; margin-bottom: 12px;
}

/* ---- legal / trust article pages ---- */
.doc { padding: 48px 0 64px; }
.doc h1 { font-size: clamp(28px, 4vw, 38px); margin: 0 0 6px; }
.doc .updated { color: var(--muted); font-size: 14px; margin: 0 0 32px; }
.doc h2 { font-size: 22px; margin: 34px 0 8px; }
.doc h3 { font-size: 17px; margin: 22px 0 6px; }
.doc p, .doc li { color: #2c3543; }
.doc ul { padding-left: 22px; }
.doc li { margin: 4px 0; }
.callout {
  background: var(--soft);
  border: 1px solid var(--border);
  border-left: 4px solid var(--blue);
  border-radius: 10px;
  padding: 14px 16px;
  margin: 20px 0;
  font-size: 15px;
}
.toc { font-size: 15px; }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--ink); }

table.facts { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: 15px; }
table.facts th, table.facts td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; vertical-align: top; }
table.facts th { background: var(--soft); }

/* ---- footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--soft);
  padding: 36px 0;
  color: var(--muted);
  font-size: 14px;
}
.site-footer .cols {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  justify-content: space-between;
}
.site-footer a { color: var(--muted); text-decoration: none; display: block; margin: 4px 0; }
.site-footer a:hover { color: var(--ink); }
.site-footer h4 { color: var(--ink); font-size: 14px; margin: 0 0 8px; }
.site-footer .legal { margin-top: 24px; font-size: 13px; }

@media (max-width: 720px) {
  .grid, .grid.two { grid-template-columns: 1fr; }
  .nav a:not(.btn) { display: none; }
}