/* FastVet Help Centre — self-contained styles.
   Tokens mirror VetLanding/css/main.css so the help centre reads as part of fastvet.net. */

:root {
  --brand-teal: #16a3a8;
  --brand-teal-600: #118b90;
  --brand-teal-700: #0d7478;
  --bg: #f6f8f9;
  --surface: #ffffff;
  --surface-2: #f1f5f6;
  --text: #0f172a;
  --muted: #566274;
  --line: #e2e8ec;
  --radius: 14px;
  --shadow-sm: 0 6px 18px rgba(15, 23, 42, .07);
  --shadow-md: 0 14px 30px rgba(15, 23, 42, .10);
  --maxw: 820px;
}

html[data-theme="dark"] {
  --bg: #0b1223;
  --surface: #111c30;
  --surface-2: #16233a;
  --text: #e6edf5;
  --muted: #9aa9bd;
  --line: #22314b;
  --shadow-sm: 0 6px 18px rgba(0, 0, 0, .35);
  --shadow-md: 0 14px 30px rgba(0, 0, 0, .45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand-teal-700); }
html[data-theme="dark"] a { color: #5ed4d8; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--brand-teal); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip:focus { left: 0; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 16px;
  padding: 10px 20px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar__brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; color: var(--text); text-decoration: none; white-space: nowrap;
}
.topbar__brand img { border-radius: 6px; }
.topbar__menu {
  display: none; flex-direction: column; gap: 4px; justify-content: center;
  width: 38px; height: 38px; padding: 0 9px;
  background: none; border: 1px solid var(--line); border-radius: 9px; cursor: pointer;
}
.topbar__menu span { display: block; height: 2px; background: var(--text); border-radius: 2px; }
.topbar__actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.topbar__app {
  padding: 8px 14px; border-radius: 999px; background: var(--brand-teal); color: #fff;
  text-decoration: none; font-weight: 600; font-size: .88rem; white-space: nowrap;
}
.topbar__app:hover { background: var(--brand-teal-600); }
.theme-toggle {
  width: 38px; height: 38px; display: grid; place-items: center;
  background: none; border: 1px solid var(--line); border-radius: 9px; cursor: pointer; color: var(--text);
}
.theme-toggle .moon { display: none; }
html[data-theme="dark"] .theme-toggle .sun { display: none; }
html[data-theme="dark"] .theme-toggle .moon { display: block; }

/* ---------- search ---------- */
.search { position: relative; flex: 1 1 auto; max-width: 460px; }
.search input {
  width: 100%; padding: 9px 14px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--surface-2); color: var(--text);
  font: inherit; font-size: .92rem;
}
.search input:focus { outline: 2px solid var(--brand-teal); outline-offset: 1px; }
.search__results {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; z-index: 60;
  max-height: 62vh; overflow-y: auto;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-md);
  padding: 6px;
}
.search__results a {
  display: block; padding: 9px 12px; border-radius: 8px; text-decoration: none; color: var(--text);
}
.search__results a:hover, .search__results a.is-active { background: var(--surface-2); }
.search__results strong { display: block; font-size: .93rem; }
.search__results small { color: var(--muted); font-size: .8rem; }
.search__results .no-hits { padding: 12px; color: var(--muted); font-size: .9rem; }

/* ---------- layout ---------- */
.layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 40px; max-width: 1280px; margin: 0 auto; padding: 28px 20px 60px; }
.sidebar { position: sticky; top: 76px; align-self: start; max-height: calc(100vh - 100px); overflow-y: auto; padding-right: 6px; }
.nav-group { margin-bottom: 6px; }
.nav-group__title {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  font: inherit; font-weight: 700; font-size: .82rem; letter-spacing: .04em; text-transform: uppercase;
  color: var(--muted); padding: 8px 10px; border-radius: 8px; display: flex; justify-content: space-between; align-items: center;
}
.nav-group__title::after { content: "▸"; transition: transform .15s; font-size: .8rem; }
.nav-group.is-open .nav-group__title::after { transform: rotate(90deg); }
.nav-group__title:hover { background: var(--surface-2); }
.nav-group ul { list-style: none; margin: 0 0 8px; padding: 0 0 0 6px; display: none; }
.nav-group.is-open ul { display: block; }
.nav-group li a {
  display: block; padding: 6px 12px; border-radius: 8px; font-size: .92rem;
  color: var(--text); text-decoration: none; border-left: 2px solid transparent;
}
.nav-group li a:hover { background: var(--surface-2); }
.nav-group li a.is-current { color: var(--brand-teal-700); font-weight: 650; border-left-color: var(--brand-teal); background: var(--surface-2); }
html[data-theme="dark"] .nav-group li a.is-current { color: #5ed4d8; }

main { min-width: 0; }

/* ---------- index page ---------- */
.hero { text-align: center; padding: 32px 0 26px; }
.hero h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin: 0 0 8px; letter-spacing: -.02em; }
.hero > p { color: var(--muted); max-width: 620px; margin: 0 auto 22px; }
.search--hero { max-width: 560px; margin: 0 auto; }
.search--hero input { padding: 13px 20px; font-size: 1rem; box-shadow: var(--shadow-sm); background: var(--surface); }
.hero__quick { font-size: .88rem; color: var(--muted); margin-top: 16px; }
.hero__quick a { margin: 0 6px; white-space: nowrap; }

.group { margin-top: 30px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(248px, 1fr)); gap: 14px; }
.card {
  display: block; padding: 16px 18px; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); text-decoration: none; color: var(--text); box-shadow: var(--shadow-sm);
  transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--brand-teal); }
.card__icon { font-size: 1.4rem; display: block; margin-bottom: 8px; line-height: 1; }
.card__group {
  display: block; font-size: .68rem; font-weight: 700; letter-spacing: .07em;
  text-transform: uppercase; color: var(--brand-teal-700); margin-bottom: 3px;
}
html[data-theme="dark"] .card__group { color: #5ed4d8; }
.card__title { display: block; font-weight: 700; margin-bottom: 5px; font-size: 1.02rem; }
.card__text { display: block; font-size: .86rem; color: var(--muted); line-height: 1.5; }

/* ---------- topic page ---------- */
.topic { max-width: var(--maxw); }
.crumb, .trail { font-size: .84rem; color: var(--muted); margin: 0 0 10px; }
.crumb i, .trail i { font-style: normal; opacity: .55; margin: 0 6px; }
.trail {
  display: inline-flex; flex-wrap: wrap; align-items: center;
  background: var(--surface-2); border: 1px solid var(--line);
  padding: 6px 12px; border-radius: 999px; font-weight: 600; color: var(--text);
}
.topic h1 { font-size: clamp(1.7rem, 3.4vw, 2.25rem); margin: 0 0 10px; letter-spacing: -.02em; line-height: 1.2; }
.summary { font-size: 1.06rem; color: var(--muted); margin: 0 0 26px; }
.topic-section { scroll-margin-top: 88px; padding-top: 10px; }
.topic h2 {
  font-size: 1.32rem; margin: 40px 0 12px; padding-top: 18px; border-top: 1px solid var(--line);
  letter-spacing: -.01em;
}
.topic h3 { font-size: 1.05rem; margin: 26px 0 8px; }
.topic p { margin: 0 0 14px; }
.anchor { opacity: 0; margin-left: 8px; text-decoration: none; color: var(--muted); font-weight: 400; }
.topic h2:hover .anchor { opacity: 1; }

.toc {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 18px; margin: 0 0 8px;
}
.toc__title { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0 0 8px; }
.toc ul { list-style: none; margin: 0; padding: 0; columns: 2; column-gap: 24px; }
.toc li { margin: 0 0 5px; break-inside: avoid; }
.toc a { font-size: .9rem; text-decoration: none; }
.toc a:hover { text-decoration: underline; }

.steps { counter-reset: step; list-style: none; margin: 0 0 18px; padding: 0; }
.steps > li {
  counter-increment: step; position: relative; padding: 0 0 4px 42px; margin-bottom: 14px;
}
.steps > li::before {
  content: counter(step); position: absolute; left: 0; top: -1px;
  width: 27px; height: 27px; border-radius: 50%;
  background: var(--brand-teal); color: #fff;
  display: grid; place-items: center; font-size: .84rem; font-weight: 700;
}
.bullets { margin: 0 0 16px; padding-left: 22px; }
.bullets li { margin-bottom: 7px; }

.ui {
  display: inline-block; padding: 1px 7px; border-radius: 6px;
  background: var(--surface-2); border: 1px solid var(--line);
  font-size: .88em; font-weight: 600; white-space: nowrap;
}

.callout {
  display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; align-items: start;
  padding: 13px 16px; margin: 0 0 18px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--surface); border-left: 4px solid var(--muted);
}
.callout strong { grid-row: 1; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; }
.callout div { grid-column: 1 / -1; font-size: .95rem; }
.callout div > :last-child { margin-bottom: 0; }
.callout--note { border-left-color: #3b82f6; } .callout--note strong { color: #2563eb; }
.callout--tip  { border-left-color: var(--brand-teal); } .callout--tip strong { color: var(--brand-teal-700); }
.callout--warn { border-left-color: #f59e0b; } .callout--warn strong { color: #b45309; }
.callout--role { border-left-color: #8b5cf6; } .callout--role strong { color: #7c3aed; }
html[data-theme="dark"] .callout--note strong { color: #7aa9ff; }
html[data-theme="dark"] .callout--tip strong { color: #5ed4d8; }
html[data-theme="dark"] .callout--warn strong { color: #fbbf24; }
html[data-theme="dark"] .callout--role strong { color: #b49bff; }

/* ---------- media ---------- */
.media { margin: 0 0 22px; }
.media__link { display: block; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-sm); background: var(--surface-2); }
.media img { display: block; width: 100%; height: auto; }
.media figcaption { font-size: .85rem; color: var(--muted); margin-top: 8px; text-align: center; }
.media--wide { margin-left: calc(-1 * min(90px, 6vw)); margin-right: calc(-1 * min(90px, 6vw)); }
.media__badge {
  display: inline-block; padding: 1px 8px; border-radius: 999px; margin-right: 6px;
  background: var(--brand-teal); color: #fff; font-size: .7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .04em; vertical-align: 1px;
}
.media-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.media-pair .media { margin-bottom: 18px; }

/* Missing media shouldn't leave a broken-image icon in a shipped page. */
.media img:not([src]) { display: none; }

.table-wrap { overflow-x: auto; margin: 0 0 20px; border: 1px solid var(--line); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; background: var(--surface); }
th, td { text-align: left; padding: 9px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--surface-2); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
tbody tr:last-child td { border-bottom: 0; }

.lead { font-size: 1rem; }

.pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line); }
.pager a {
  flex: 0 1 46%; padding: 12px 16px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--surface); text-decoration: none; color: var(--text); font-weight: 650;
}
.pager a:hover { border-color: var(--brand-teal); }
.pager span { display: block; font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 700; margin-bottom: 2px; }
.pager__next { text-align: right; }

.sitefoot { border-top: 1px solid var(--line); padding: 22px 20px; text-align: center; color: var(--muted); font-size: .87rem; background: var(--surface); }

/* ---------- lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 90; display: grid; place-items: center;
  background: rgba(8, 14, 26, .88); padding: 24px; cursor: zoom-out;
}
.lightbox img { max-width: 96vw; max-height: 92vh; border-radius: 10px; box-shadow: 0 30px 80px rgba(0,0,0,.5); }
.lightbox[hidden] { display: none; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; gap: 0; }
  .topbar__menu { display: flex; }
  .sidebar {
    position: fixed; inset: 58px 0 auto 0; z-index: 35; max-height: calc(100vh - 58px);
    background: var(--surface); border-bottom: 1px solid var(--line);
    padding: 14px 20px 20px; display: none;
  }
  .sidebar.is-open { display: block; }
  .toc ul { columns: 1; }
  .media--wide { margin-left: 0; margin-right: 0; }
  .media-pair { grid-template-columns: 1fr; }
  .topbar__app { display: none; }
}
@media (max-width: 620px) {
  .search { max-width: none; }
  .pager { flex-direction: column; }
  .pager a { flex: 1 1 auto; }
}

@media print {
  .topbar, .sidebar, .pager, .sitefoot, .toc { display: none; }
  .layout { display: block; padding: 0; }
  .media__link { break-inside: avoid; }
}