/* Hub-Bro website — one stylesheet, no build step.
   Colours follow the app: brand green #00694A, gold accent #E9B452. */

:root {
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: ui-monospace, 'JetBrains Mono', Consolas, monospace;

  --bg: #f9fafb;
  --surface: #ffffff;
  --surface-2: #f3f4f6;
  --border: #e5e7eb;
  --ink: #1f2937;
  --ink-2: #4b5563;
  --muted: #6b7280;
  --primary: #00694A;
  --primary-strong: #00543B;
  --primary-soft: #E6F0EC;
  --accent: #E9B452;
  --radius: 12px;
  --w: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1512;
    --surface: #151f1b;
    --surface-2: #1c2a24;
    --border: #263a32;
    --ink: #e8efec;
    --ink-2: #b6c5bf;
    --muted: #8fa39b;
    --primary: #2ea884;
    --primary-strong: #3fbf99;
    --primary-soft: #163026;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--w); margin: 0 auto; padding: 0 24px; }

/* ---- header ---- */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
header.site .wrap {
  display: flex; align-items: center; gap: 14px; height: 62px;
}
.brand {
  display: flex; align-items: center; gap: 9px;
  font-weight: 600; font-size: 16px; color: var(--ink); text-decoration: none;
}
header.site nav { margin-left: auto; display: flex; gap: 22px; align-items: center; }
header.site nav a {
  color: var(--ink-2); text-decoration: none; font-size: 14.5px;
}
header.site nav a:hover, header.site nav a.on { color: var(--primary); }

/* ---- hero ---- */
.hero { padding: 76px 0 56px; }
.hero h1 {
  font-size: clamp(34px, 5vw, 50px); line-height: 1.12;
  letter-spacing: -0.02em; margin: 0 0 18px; font-weight: 700;
}
.hero p.lead {
  font-size: 19px; color: var(--ink-2); max-width: 660px; margin: 0 0 28px;
}
.eyebrow {
  display: inline-block; font-size: 12.5px; font-weight: 600;
  letter-spacing: .07em; text-transform: uppercase;
  color: var(--primary); background: var(--primary-soft);
  padding: 5px 12px; border-radius: 999px; margin-bottom: 20px;
}

.btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: 10px; font-size: 15px; font-weight: 500;
  text-decoration: none; border: 1px solid transparent; transition: .15s;
}
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-strong); }
.btn.ghost { border-color: var(--border); color: var(--ink); background: var(--surface); }
.btn.ghost:hover { border-color: var(--primary); color: var(--primary); }

/* ---- sections ---- */
section { padding: 56px 0; border-top: 1px solid var(--border); }
section h2 {
  font-size: 27px; letter-spacing: -0.015em; margin: 0 0 10px; font-weight: 650;
}
section > .wrap > p.sub { color: var(--muted); margin: 0 0 32px; max-width: 640px; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 22px;
}
.card h3 { margin: 0 0 7px; font-size: 16px; font-weight: 600; }
.card p { margin: 0; color: var(--ink-2); font-size: 14.5px; }
.card .tag {
  display: inline-block; font-family: var(--mono); font-size: 11.5px;
  color: var(--primary); background: var(--primary-soft);
  padding: 2px 8px; border-radius: 6px; margin-bottom: 10px;
}

/* ---- docs ---- */
.docs { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 44px; padding: 44px 0; }
@media (max-width: 820px) { .docs { grid-template-columns: 1fr; gap: 24px; } }

.toc { position: sticky; top: 86px; align-self: start; font-size: 14px; }
.toc strong {
  display: block; font-size: 11.5px; text-transform: uppercase;
  letter-spacing: .07em; color: var(--muted); margin-bottom: 10px;
}
.toc a {
  display: block; padding: 5px 0; color: var(--ink-2); text-decoration: none;
  border-left: 2px solid transparent; padding-left: 12px; margin-left: -14px;
}
.toc a:hover { color: var(--primary); border-left-color: var(--primary); }

article h2 {
  font-size: 24px; margin: 46px 0 12px; scroll-margin-top: 86px;
  padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
article h2:first-child { margin-top: 0; }
article h3 { font-size: 17px; margin: 30px 0 8px; font-weight: 600; }
article p, article li { color: var(--ink-2); }
article ul, article ol { padding-left: 22px; }
article li { margin: 5px 0; }
article strong { color: var(--ink); font-weight: 600; }

code {
  font-family: var(--mono); font-size: .885em;
  background: var(--surface-2); padding: 2px 6px; border-radius: 5px;
  color: var(--ink);
}
pre {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 15px 17px; overflow-x: auto; font-size: 13.5px;
  line-height: 1.6;
}
pre code { background: none; padding: 0; font-size: inherit; }

table { border-collapse: collapse; width: 100%; font-size: 14.5px; margin: 16px 0; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); }
th { font-weight: 600; color: var(--ink); font-size: 13px; }
td { color: var(--ink-2); }

.note {
  border-left: 3px solid var(--accent); border-radius: 0;
  background: var(--surface); padding: 13px 17px; margin: 20px 0;
  font-size: 14.5px; color: var(--ink-2);
}
.note strong { color: var(--ink); }

/* ---- footer ---- */
footer.site {
  border-top: 1px solid var(--border); padding: 30px 0 44px;
  color: var(--muted); font-size: 14px;
}
footer.site .wrap { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
footer.site a { color: var(--ink-2); text-decoration: none; }
footer.site a:hover { color: var(--primary); }
footer.site .spacer { flex: 1; }