/* SyncroWorks — reference stylesheet. One file, no external requests. */

:root {
  --paper: #fbf7f1;
  --panel: #ffffff;
  --tint: #f4ebdf;
  --ink: #221a14;
  --muted: #55463b;
  --rule: #ded0bd;
  --rule-strong: #c4b19a;
  --accent: #9c3a12;
  --accent-deep: #782c0d;
  --olive: #3a5140;
  --radius: 2px;
  --gap: 1.25rem;
  --measure: 68ch;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: "Segoe UI", Roboto, "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.68;
  overflow-wrap: break-word;
}

.wrap { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }

a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--accent-deep); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--olive);
  outline-offset: 2px;
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--olive); color: #fff; padding: .6rem 1rem; z-index: 50;
  text-decoration: none;
}
.skip:focus { left: 0; }

/* ---------- Header ---------- */

.site-head {
  background: var(--panel);
  border-bottom: 2px solid var(--rule-strong);
}
.head-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .9rem 0;
}
.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); }
.brand svg { flex: none; }
.brand-name { font-family: var(--serif); font-size: 1.32rem; letter-spacing: .01em; }
.brand-sub { display: block; font-family: var(--sans); font-size: .69rem; letter-spacing: .13em;
  text-transform: uppercase; color: var(--muted); }

.menu-btn {
  display: none; font: inherit; font-size: .9rem; background: var(--tint); color: var(--ink);
  border: 1px solid var(--rule-strong); border-radius: var(--radius); padding: .45rem .8rem; cursor: pointer;
}

.site-nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 1.15rem; margin: 0; padding: 0; align-items: center; }
.site-nav a { color: var(--ink); text-decoration: none; font-size: .95rem; padding: .3rem 0; border-bottom: 2px solid transparent; }
.site-nav a:hover { border-bottom-color: var(--accent); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--accent); color: var(--accent-deep); }

.drop { position: relative; }
.drop > summary {
  list-style: none; cursor: pointer; font-size: .95rem; padding: .3rem 0;
  border-bottom: 2px solid transparent;
}
.drop > summary::-webkit-details-marker { display: none; }
.drop > summary::after { content: " \25BE"; color: var(--muted); }
.drop[open] > summary { border-bottom-color: var(--accent); }
.drop-panel {
  position: absolute; top: 2.4rem; left: -12px; z-index: 30; min-width: 258px;
  background: var(--panel); border: 1px solid var(--rule-strong); border-radius: var(--radius);
  padding: .5rem; box-shadow: 0 6px 18px rgba(34,26,20,.13);
}
.drop-panel ul { display: block; }
.drop-panel li + li { margin-top: .15rem; }
.drop-panel a { display: block; padding: .38rem .5rem; font-size: .92rem; }
.drop-panel a:hover { background: var(--tint); border-bottom-color: transparent; }

/* ---------- Layout ---------- */

main { display: block; }
.page { padding: 2.2rem 0 3rem; }
.page-grid { display: grid; grid-template-columns: minmax(0, 1fr) 286px; gap: 2.6rem; align-items: start; }
.col-main { min-width: 0; }
.col-main > * { max-width: var(--measure); }
.col-main > .full, .col-main > table, .col-main > .table-scroll, .col-main > .panel-wide { max-width: none; }

.crumbs { font-size: .85rem; color: var(--muted); padding: .9rem 0 0; }
.crumbs a { color: var(--muted); }

h1, h2, h3, h4 { font-family: var(--serif); line-height: 1.24; color: var(--ink); }
h1 { font-size: 2.05rem; margin: .4rem 0 .7rem; }
h2 { font-size: 1.44rem; margin: 2.3rem 0 .7rem; padding-top: .9rem; border-top: 1px solid var(--rule); }
h3 { font-size: 1.14rem; margin: 1.7rem 0 .45rem; }
h4 { font-size: 1rem; margin: 1.3rem 0 .35rem; }
p { margin: 0 0 1.05rem; }
.lede { font-size: 1.12rem; color: var(--muted); }

ul, ol { margin: 0 0 1.1rem; padding-left: 1.35rem; }
li { margin-bottom: .45rem; }

dl.defs { margin: 0 0 1.4rem; }
dl.defs dt { font-weight: 700; margin-top: 1.05rem; font-size: 1.02rem; }
dl.defs dd { margin: .2rem 0 0; color: var(--muted); }
dl.defs dd + dd { margin-top: .4rem; }

/* ---------- Components ---------- */

.disclosure {
  background: var(--tint);
  border: 1px solid var(--rule-strong);
  border-left: 6px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  margin: 1.7rem 0;
  font-size: 1rem;
}
.disclosure h2, .disclosure h3, .panel h2, .panel h3 { margin: 0 0 .5rem; padding-top: 0; border-top: 0; font-size: 1.08rem; }
.disclosure p:last-child { margin-bottom: 0; }

.link-note {
  font-size: .95rem;
  color: var(--muted);
  margin: .5rem 0 1.4rem;
  max-width: 62ch;
}

.visit {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 1rem;
  padding: .72rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--accent-deep);
}
.visit:hover { background: var(--accent-deep); color: #fff; }

.panel {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  margin: 1.5rem 0;
}
.panel > :last-child { margin-bottom: 0; }
.panel h2 + *, .panel h3 + * { margin-top: 0; }

.watch { border-left: 6px solid var(--olive); background: #f2f5f1; }
.method { border-left: 6px solid var(--rule-strong); background: var(--tint); }
.example { border-left: 6px solid var(--accent); }
.example .ex-label {
  font-size: .72rem; letter-spacing: .13em; text-transform: uppercase;
  color: var(--muted); display: block; margin-bottom: .3rem;
}

.quick {
  background: var(--panel); border: 1px solid var(--rule-strong);
  border-radius: var(--radius); padding: 1.1rem 1.2rem; margin: 1.4rem 0;
}
.quick .ex-label { font-size: .72rem; letter-spacing: .13em; text-transform: uppercase; color: var(--muted); }
.quick p:last-child { margin-bottom: 0; }

.table-scroll { overflow-x: auto; margin: 1.4rem 0; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; background: var(--panel); }
caption { text-align: left; font-size: .9rem; color: var(--muted); padding-bottom: .5rem; }
th, td { border: 1px solid var(--rule); padding: .6rem .7rem; text-align: left; vertical-align: top; }
thead th { background: var(--tint); font-family: var(--serif); font-size: 1rem; }
tbody th { font-weight: 700; }

.checklist { list-style: none; padding-left: 0; }
.checklist li { position: relative; padding-left: 1.7rem; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: .48em;
  width: .72rem; height: .72rem; border: 2px solid var(--accent); border-radius: 1px;
}

.faq details {
  border: 1px solid var(--rule); border-radius: var(--radius);
  background: var(--panel); margin-bottom: .6rem;
}
.faq summary {
  cursor: pointer; padding: .8rem 1rem; font-weight: 600; list-style: none;
  font-family: var(--serif); font-size: 1.05rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+ "; color: var(--accent); font-weight: 700; }
.faq details[open] summary::before { content: "\2212 "; }
.faq .faq-body { padding: 0 1rem .4rem; }
.faq .faq-body > :last-child { margin-bottom: .8rem; }

.strip {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(226px, 1fr));
  gap: 1rem; margin: 1.5rem 0; max-width: none;
}
.strip .cell {
  background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius); padding: .95rem 1rem;
}
.strip .cell p { margin: 0; font-size: .94rem; color: var(--muted); }
.strip .cell .term { font-family: var(--serif); font-size: 1.06rem; display: block; margin-bottom: .25rem; color: var(--ink); }

.keypoints { list-style: none; padding: 0; display: grid; gap: .55rem; }
.keypoints li {
  border-left: 3px solid var(--accent); padding-left: .85rem; color: var(--muted); font-size: .98rem;
}

.timeline { list-style: none; padding-left: 0; border-left: 2px solid var(--rule-strong); margin-left: .4rem; }
.timeline li { padding-left: 1.2rem; position: relative; margin-bottom: 1rem; }
.timeline li::before {
  content: ""; position: absolute; left: -7px; top: .55em; width: 11px; height: 11px;
  background: var(--accent); border-radius: 50%;
}
.timeline .step { font-family: var(--serif); font-size: 1.05rem; display: block; }

.index-list { list-style: none; padding: 0; display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr)); max-width: none; }
.index-list li { border: 1px solid var(--rule); background: var(--panel); border-radius: var(--radius); padding: 1rem 1.1rem; margin: 0; }
.index-list a { font-family: var(--serif); font-size: 1.1rem; }
.index-list p { margin: .35rem 0 0; font-size: .93rem; color: var(--muted); }

.alpha-nav { display: flex; flex-wrap: wrap; gap: .35rem; margin: 1.2rem 0 1.8rem; padding: 0; list-style: none; max-width: none; }
.alpha-nav a {
  display: inline-block; min-width: 2.1rem; text-align: center;
  border: 1px solid var(--rule-strong); border-radius: var(--radius);
  padding: .22rem .45rem; text-decoration: none; font-size: .92rem; background: var(--panel);
}
.alpha-nav a:hover { background: var(--tint); }

.term-block { border-top: 1px solid var(--rule); padding-top: 1rem; margin-top: 1.4rem; }
.term-block h3 { margin-top: 0; }
.term-block .see { font-size: .9rem; color: var(--muted); }

/* ---------- Sidebar ---------- */

.side { font-size: .94rem; position: sticky; top: 1rem; }
.side section {
  background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: .95rem 1.05rem; margin-bottom: 1.1rem;
}
.side h2 {
  font-size: .76rem; letter-spacing: .13em; text-transform: uppercase; color: var(--muted);
  margin: 0 0 .6rem; padding: 0; border: 0; font-family: var(--sans);
}
.side ul { list-style: none; padding: 0; margin: 0; }
.side li { margin-bottom: .45rem; line-height: 1.45; }
.side .toc a.active { font-weight: 700; }

/* ---------- Footer ---------- */

.site-footer {
  background: #efe6d8;
  border-top: 2px solid var(--rule-strong);
  padding: 2.2rem 0 2.6rem;
  font-size: .94rem;
  color: var(--muted);
}
.site-footer .pub-name { font-family: var(--serif); font-size: 1.15rem; color: var(--ink); margin: 0 0 .25rem; }
.site-footer p { margin: 0 0 .28rem; max-width: 76ch; }
.site-footer .foot-nav { margin: 1rem 0 .9rem; }
.site-footer .foot-nav a { display: inline-block; margin-right: .2rem; }
.site-footer .tm { margin-top: .9rem; padding-top: .9rem; border-top: 1px solid var(--rule-strong); }
.site-footer .rev { margin-top: .7rem; font-size: .88rem; }

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .page-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .side { position: static; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  h1 { font-size: 1.7rem; }
  h2 { font-size: 1.28rem; }
  .menu-btn { display: inline-block; }
  .head-row { flex-wrap: wrap; }
  .site-nav { display: none; width: 100%; padding-bottom: .6rem; }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav li { border-top: 1px solid var(--rule); }
  .site-nav a, .drop > summary { display: block; padding: .62rem 0; }
  .drop-panel { position: static; box-shadow: none; border: 0; padding: 0 0 .4rem .8rem; min-width: 0; }
}

@media print {
  .site-nav, .menu-btn, .skip { display: none; }
}