/* Ledgerly Docs — shares the landing page's design tokens. */

:root {
  --ink:        #0F172A;
  --ink-2:      #475569;
  --ink-3:      #7A8699;
  --paper:      #FBFCFD;
  --surface:    #FFFFFF;
  --line:       #E4E9F0;
  --primary:    #2563EB;
  --accent:     #0D9488;
  --accent-soft:#E6F5F2;
  --tint:       #F4F7FB;
  --radius: 14px;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --serif: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}
/* Dark tokens apply from the OS preference unless the user explicitly picked
   light with the toggle; an explicit dark choice always wins. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink:        #E8EDF5;
    --ink-2:      #A3B0C2;
    --ink-3:      #74829A;
    --paper:      #0B1220;
    --surface:    #111A2E;
    --line:       #22304B;
    --primary:    #60A5FA;
    --accent:     #2DD4BF;
    --accent-soft:#0E2E2B;
    --tint:       #0E1728;
  }
}
:root[data-theme="dark"] {
  --ink:        #E8EDF5;
  --ink-2:      #A3B0C2;
  --ink-3:      #74829A;
  --paper:      #0B1220;
  --surface:    #111A2E;
  --line:       #22304B;
  --primary:    #60A5FA;
  --accent:     #2DD4BF;
  --accent-soft:#0E2E2B;
  --tint:       #0E1728;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans); font-size: 16px; line-height: 1.6;
  color: var(--ink); background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

/* ── Top nav ──────────────────────────────────────────── */
.nav { position: sticky; top: 0; z-index: 10; background: var(--paper); border-bottom: 1px solid var(--line); }
.nav__inner {
  max-width: 1280px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 1.05rem; }
.brand__docs {
  font-family: var(--mono); font-size: .72rem; font-weight: 500; color: var(--accent);
  background: var(--accent-soft); border-radius: 6px; padding: 2px 8px; letter-spacing: .04em;
}
.nav__links { display: flex; align-items: center; gap: 18px; font-size: .92rem; }
.nav__links a { color: var(--ink-2); text-decoration: none; }
.nav__links a:hover { color: var(--ink); }
.nav__links .btn {
  color: #fff; background: var(--primary); border-radius: 999px;
  padding: 8px 16px; font-weight: 600;
}
.nav__links .btn:hover { color: #fff; filter: brightness(1.06); }
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 999px;
  background: var(--tint); border: 1px solid var(--line);
  color: var(--ink-2); cursor: pointer; font-size: 1rem;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink-3); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .sun { display: none; }
.theme-toggle .moon { display: block; }
:root[data-theme="dark"] .theme-toggle .sun { display: block; }
:root[data-theme="dark"] .theme-toggle .moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .moon { display: none; }
}

/* screenshots */
.doc img.shot {
  width: 100%; height: auto; margin: 14px 0 6px;
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 14px 34px -22px rgba(15, 23, 42, .4);
}
.doc .shot__cap {
  font-size: .82rem; color: var(--ink-3); margin: 0 0 18px;
}

/* ── Shell: sidebar + content ─────────────────────────── */
.shell {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px;
}
.side { border-right: 1px solid var(--line); padding: 36px 24px 36px 0; }
.side nav { position: sticky; top: 84px; }
.side__label {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px;
}
.side ul { list-style: none; display: grid; gap: 2px; }
.side a {
  display: block; padding: 7px 10px; border-radius: 8px;
  color: var(--ink-2); text-decoration: none; font-size: .93rem;
}
.side a:hover { color: var(--ink); background: var(--tint); }
.side a.on { color: var(--primary); background: var(--tint); font-weight: 600; }

/* ── Document ─────────────────────────────────────────── */
.doc { padding: 44px 0 64px; max-width: 760px; }
.doc h1 {
  font-family: var(--serif); font-weight: 400; letter-spacing: -.01em;
  font-size: clamp(2rem, 4vw, 2.7rem); line-height: 1.1; margin-bottom: 18px;
  text-wrap: balance;
}
.doc h2 {
  font-size: 1.35rem; font-weight: 700; margin: 40px 0 12px;
  padding-top: 18px; border-top: 1px solid var(--line);
}
.doc h1 + h2, .doc p + h2:first-of-type { border-top: 0; }
.doc h3 { font-size: 1.05rem; font-weight: 600; margin: 26px 0 8px; }
.doc p { color: var(--ink-2); margin: 10px 0; max-width: 70ch; }
.doc ul, .doc ol { color: var(--ink-2); margin: 10px 0 10px 22px; max-width: 68ch; }
.doc li { margin: 5px 0; }
.doc li::marker { color: var(--accent); }
.doc a { color: var(--primary); text-decoration: none; font-weight: 500; }
.doc a:hover { text-decoration: underline; }
.doc strong { color: var(--ink); }
.doc code {
  font-family: var(--mono); font-size: .86em;
  background: var(--tint); border: 1px solid var(--line);
  border-radius: 6px; padding: 1px 6px;
}
.doc blockquote {
  margin: 18px 0; padding: 12px 18px;
  background: var(--accent-soft); border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
}
.doc blockquote p { color: var(--ink); margin: 0; }

/* tables */
.doc table {
  width: 100%; border-collapse: collapse; margin: 16px 0;
  font-size: .92rem; display: block; overflow-x: auto;
}
.doc th, .doc td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.doc th { font-family: var(--mono); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }
.doc td { color: var(--ink-2); }
.doc td strong { color: var(--ink); }

/* index cards */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 24px 0; }
.cardlink {
  display: block; padding: 18px 18px 16px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  text-decoration: none; transition: border-color .15s ease, transform .15s ease;
}
.cardlink:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }
.cardlink h3 { margin: 0 0 6px; font-size: 1rem; color: var(--ink); }
.cardlink p { margin: 0; font-size: .88rem; color: var(--ink-2); }

.doc__foot {
  margin-top: 56px; padding-top: 18px; border-top: 1px solid var(--line);
  font-size: .9rem; color: var(--ink-3);
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; gap: 0; }
  .side { border-right: 0; border-bottom: 1px solid var(--line); padding: 18px 0; }
  .side nav { position: static; }
  .side ul { display: flex; flex-wrap: wrap; gap: 6px; }
  .side a { padding: 6px 12px; background: var(--tint); border-radius: 999px; font-size: .86rem; }
  .doc { padding-top: 30px; }
  .cards { grid-template-columns: 1fr; }
  .nav__links a:not(.btn) { display: none; }
}