/* LeadSalesHub public site.
   Hand-written, no framework, no build step. The CI4 site pulled Bootstrap and
   Bootstrap Icons from a CDN on every page; this is smaller than either. */

:root {
  --ink: #14181d;
  --ink-soft: #5a6472;
  --line: #e2e6eb;
  --bg: #ffffff;
  --bg-alt: #f6f8fa;
  --accent: #1f6feb;
  --accent-dark: #1a5fce;
  --danger: #b42318;
  --radius: 8px;
  --wrap: 1080px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e6edf3;
    --ink-soft: #9aa6b2;
    --line: #2a313a;
    --bg: #0d1117;
    --bg-alt: #151b23;
    --accent: #4c8dff;
    --accent-dark: #6ba1ff;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-dark); }

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.015em; }
h1 { font-size: 2.4rem; margin: 0 0 0.5em; }
h2 { font-size: 1.5rem; margin: 2em 0 0.6em; }
h3 { font-size: 1.15rem; margin: 1.8em 0 0.5em; }

.muted { color: var(--ink-soft); }
.fineprint { color: var(--ink-soft); font-size: 0.9rem; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.6em;
}
.lede { font-size: 1.18rem; color: var(--ink-soft); max-width: 62ch; }

.skip {
  position: absolute; left: -9999px;
  background: var(--accent); color: #fff; padding: 10px 16px;
}
.skip:focus { left: 12px; top: 12px; z-index: 100; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); }
.site-header .wrap { display: flex; align-items: center; gap: 28px; min-height: 66px; }
.brand { font-weight: 700; font-size: 1.05rem; color: var(--ink); text-decoration: none; }
.site-header nav ul {
  display: flex; gap: 22px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap;
}
.site-header nav a {
  color: var(--ink-soft); text-decoration: none; font-size: 0.94rem; font-weight: 500;
}
.site-header nav a:hover { color: var(--ink); }
.site-header nav a[aria-current="page"] { color: var(--accent); }
.header-cta { margin-left: auto; }

/* Buttons */
.btn {
  display: inline-block; padding: 10px 20px; border-radius: var(--radius);
  font-weight: 600; font-size: 0.95rem; text-decoration: none; border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost { border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Sections */
.hero { padding: 84px 0 64px; }
.hero h1 { font-size: 3rem; max-width: 16ch; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 14px; }

.page-head { padding: 56px 0 24px; border-bottom: 1px solid var(--line); }
.band { padding: 64px 0; }
.band-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 44px; }
.cols-3 h2 { margin-top: 0; }
@media (max-width: 820px) { .cols-3 { grid-template-columns: 1fr; gap: 32px; } }

.ticks { list-style: none; padding: 0; margin: 1em 0 0; }
.ticks li { padding-left: 24px; position: relative; margin-bottom: 6px; color: var(--ink-soft); }
.ticks li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }

.cards { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.cards li { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.cards h2 { margin: 0 0 0.4em; font-size: 1.1rem; }
@media (max-width: 700px) { .cards { grid-template-columns: 1fr; } }

/* Prose */
.prose { padding: 40px 0 72px; max-width: 760px; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.prose code {
  font-family: var(--mono); font-size: 0.88em;
  background: var(--bg-alt); border: 1px solid var(--line);
  border-radius: 4px; padding: 1px 5px;
}
.prose pre {
  background: var(--bg-alt); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 18px; overflow-x: auto;
}
.prose pre code { background: none; border: none; padding: 0; }
.prose table { border-collapse: collapse; width: 100%; margin: 1.4em 0; font-size: 0.94rem; }
.prose th, .prose td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; }
.prose th { background: var(--bg-alt); font-weight: 600; }
.prose blockquote {
  margin: 1.4em 0; padding: 2px 18px; border-left: 3px solid var(--accent);
  color: var(--ink-soft);
}

/* Docs */
.docs-layout { display: grid; grid-template-columns: 230px 1fr; gap: 48px; align-items: start; }
.docs-nav { position: sticky; top: 24px; padding-top: 40px; }
.docs-nav h2 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.09em; color: var(--ink-soft); margin: 0 0 12px; }
.docs-nav ul { list-style: none; padding: 0; margin: 0; }
.docs-nav li { margin-bottom: 3px; }
.docs-nav a {
  display: block; padding: 5px 10px; border-radius: 6px;
  color: var(--ink-soft); text-decoration: none; font-size: 0.92rem;
}
.docs-nav a:hover { background: var(--bg-alt); color: var(--ink); }
.docs-nav a[aria-current="page"] { background: var(--bg-alt); color: var(--accent); font-weight: 600; }
@media (max-width: 860px) {
  .docs-layout { grid-template-columns: 1fr; gap: 8px; }
  .docs-nav { position: static; padding-top: 24px; }
}

/* Blog */
.post-list { list-style: none; padding: 0; margin: 40px 0 72px; }
.post-list li { padding-bottom: 28px; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
.post-list li:last-child { border-bottom: none; }
.post-list h2 { margin: 0 0 0.2em; font-size: 1.3rem; }
.post-list h2 a { text-decoration: none; }
.post-head { margin-bottom: 8px; }
.post-foot { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); }

/* Forms */
.form { margin: 32px 0 72px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-weight: 600; font-size: 0.92rem; margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 10px 12px; font: inherit; font-size: 0.97rem;
  color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent);
}
.field-error { color: var(--danger); font-size: 0.88rem; margin: 6px 0 0; }
.field-check label { font-weight: 400; font-size: 0.93rem; line-height: 1.5; display: flex; gap: 10px; align-items: flex-start; }
.field-check input { width: auto; margin-top: 4px; flex-shrink: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.notice {
  background: var(--bg-alt); border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius); padding: 14px 18px; margin: 24px 0;
}
.notice-error { border-left-color: var(--danger); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-alt); padding: 52px 0 28px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 36px; }
.footer-grid h2 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.09em; color: var(--ink-soft); margin: 0 0 12px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 6px; }
.footer-grid a { color: var(--ink-soft); text-decoration: none; font-size: 0.93rem; }
.footer-grid a:hover { color: var(--accent); }
.footer-legal { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); }
.footer-legal p { margin: 0; font-size: 0.88rem; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; } }