/* FileAgent Docs — design tokens mirror the FileAgent app palette (app.css).
   Dark is the default; [data-theme="light"] mirrors the app's light theme. */
:root,
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1626;
  --bg-deep: #08111e;
  --bg-grad-1: #0d1626;
  --bg-grad-2: #0b1320;
  --bg-grad-3: #08111e;
  --surface: #152235;
  --surface-2: #1a2940;
  --surface-soft: #1d2c44;
  --input: #132033;
  --border: rgba(171, 196, 224, 0.18);
  --border-strong: rgba(140, 239, 228, 0.34);
  --primary: #5fd3c0;
  --primary-dark: #38c9b1;
  --primary-ink: #06121d;
  --link: #8cefe4;
  --text: #edf3fb;
  --heading: #f5faff;
  --muted: #b7c5d8;
  --muted-soft: rgba(183, 197, 216, 0.72);
  --info: #7cc4ff;
  --warning: #f6c177;
  --danger: #f87171;
  --code-text: #c9efe7;
  --topbar-bg: rgba(10, 18, 31, 0.85);
  --card-grad: linear-gradient(180deg, var(--surface), var(--surface-soft));
  --glow: rgba(95, 211, 192, 0.10);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f7f7;
  --bg-deep: #eef2f3;
  --bg-grad-1: #f4f7f7;
  --bg-grad-2: #eef3f3;
  --bg-grad-3: #e9eff0;
  --surface: #ffffff;
  --surface-2: #f1f5f5;
  --surface-soft: #f7fafa;
  --input: #ffffff;
  --border: rgba(15, 23, 42, 0.10);
  --border-strong: rgba(29, 111, 97, 0.34);
  --primary: #1d6f61;
  --primary-dark: #155448;
  --primary-ink: #ffffff;
  --link: #1d6f61;
  --text: #14202b;
  --heading: #0e1a24;
  --muted: #51616d;
  --muted-soft: rgba(81, 97, 109, 0.82);
  --info: #1e6bd4;
  --warning: #b3760a;
  --danger: #c0362c;
  --code-text: #0f3b2f;
  --topbar-bg: rgba(255, 255, 255, 0.88);
  --card-grad: linear-gradient(180deg, #ffffff, #f6faf9);
  --glow: rgba(29, 111, 97, 0.07);
}

:root {
  --grad: linear-gradient(135deg, #63d3b2 0%, #38c9b1 100%);
  --shadow: 0 22px 60px rgba(6, 12, 24, 0.34);
  --radius: 14px;
  --topbar-h: 64px;
  --sidebar-w: 280px;
  --toc-w: 220px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
:root[data-theme="light"] { --shadow: 0 20px 60px rgba(15, 23, 42, 0.10); }

table, pre, code, kbd { font-variant-numeric: tabular-nums; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-h) + 16px); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(820px 440px at 12% -4%, var(--glow), transparent 60%),
    linear-gradient(180deg, var(--bg-grad-1) 0%, var(--bg-grad-2) 60%, var(--bg-grad-3) 100%);
  background-attachment: fixed;
  line-height: 1.65;
}
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--primary-dark); }
:root[data-theme="dark"] a:hover { color: var(--primary); }
img { max-width: 100%; }
h1, h2, h3, h4 { color: var(--heading); line-height: 1.2; letter-spacing: -0.01em; margin: 0; font-weight: 800; }
p { color: var(--muted); margin: 0 0 0.9rem; }
strong { color: var(--text); font-weight: 700; }
code {
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 0.88em;
  color: var(--link);
  background: color-mix(in srgb, var(--primary) 10%, var(--input));
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.08rem 0.4rem;
}
pre {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  margin: 0 0 1rem;
}
pre code { background: none; border: none; padding: 0; color: var(--code-text); font-size: 0.85rem; line-height: 1.6; }

/* Skip link */
.doc-skip {
  position: fixed; left: 50%; top: 0.5rem; transform: translate(-50%, -150%);
  z-index: 100; background: var(--primary); color: var(--primary-ink);
  padding: 0.5rem 1rem; border-radius: 8px; font-weight: 700; font-size: 0.9rem;
  transition: transform 0.15s ease;
}
.doc-skip:focus { transform: translate(-50%, 0); color: var(--primary-ink); }

/* ---------------- Topbar ---------------- */
.doc-topbar {
  position: fixed; inset: 0 0 auto 0; height: var(--topbar-h); z-index: 60;
  background: var(--topbar-bg);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.doc-topbar-inner {
  display: flex; align-items: center; gap: 1rem; height: 100%;
  max-width: 1540px; margin-inline: auto; padding-inline: 20px;
}
.doc-brand { display: inline-flex; align-items: center; gap: 0.6rem; flex-shrink: 0; }
.doc-brand-logo {
  display: block; width: clamp(8.6rem, 14vw, 10.5rem); height: auto; max-height: 2.55rem; object-fit: contain;
  filter: drop-shadow(0 8px 22px rgb(17 202 181 / 0.1));
}
.doc-brand-logo-light { display: none; }
:root[data-theme="light"] .doc-brand-logo-dark { display: none; }
:root[data-theme="light"] .doc-brand-logo-light { display: block; }
.doc-brand-tag {
  padding: 0.2rem 0.55rem; border: 1px solid var(--border-strong); border-radius: 999px;
  color: var(--primary); font-size: 0.7rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
}
.doc-nav-toggle {
  display: none; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem;
  border: 1px solid var(--border); border-radius: 10px; background: var(--input); color: var(--text); cursor: pointer;
}
.doc-search { position: relative; flex: 1; max-width: 32rem; margin-inline: auto; }
.doc-search-icon { position: absolute; left: 0.8rem; top: 50%; transform: translateY(-50%); color: var(--muted-soft); pointer-events: none; }
.doc-search-kbd {
  position: absolute; right: 0.7rem; top: 50%; transform: translateY(-50%);
  font-size: 0.72rem; color: var(--muted-soft); border: 1px solid var(--border);
  border-radius: 6px; padding: 0.05rem 0.4rem; background: var(--surface-2); pointer-events: none;
}
.doc-search input {
  width: 100%; padding: 0.6rem 2.3rem 0.6rem 2.3rem;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--input); color: var(--text); font: inherit; font-size: 0.92rem;
}
.doc-search input::placeholder { color: var(--muted-soft); }
.doc-search input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, transparent); }
.doc-search-results {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; max-height: 24rem; overflow: auto;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 12px; box-shadow: var(--shadow); padding: 0.4rem;
}
.doc-search-result { display: block; padding: 0.6rem 0.7rem; border-radius: 8px; }
.doc-search-result:hover, .doc-search-result.sel { background: color-mix(in srgb, var(--primary) 12%, transparent); }
.doc-search-result strong { display: block; color: var(--text); font-size: 0.92rem; }
.doc-search-result small { color: var(--muted-soft); font-size: 0.78rem; }
.doc-search-result em { color: var(--primary); font-style: normal; font-weight: 700; }
.doc-search-empty { padding: 0.8rem; color: var(--muted-soft); font-size: 0.88rem; text-align: center; }
.doc-topbar-links { display: flex; align-items: center; gap: 0.9rem; flex-shrink: 0; }
.doc-topbar-links a { color: var(--muted); font-size: 0.9rem; font-weight: 600; }
.doc-topbar-links a:hover { color: var(--text); }
.doc-topbar-cta { background: var(--grad); color: var(--primary-ink) !important; padding: 0.5rem 0.95rem; border-radius: 9px; font-weight: 700; }
:root[data-theme="light"] .doc-topbar-cta { color: #06121d !important; }
.doc-theme-toggle {
  display: inline-flex; align-items: center; justify-content: center; width: 2.3rem; height: 2.3rem;
  border: 1px solid var(--border); border-radius: 9px; background: var(--input); color: var(--muted); cursor: pointer;
}
.doc-theme-toggle:hover { color: var(--text); border-color: var(--border-strong); }
.doc-theme-toggle .ico-sun { display: none; }
.doc-theme-toggle .ico-moon { display: block; }
:root[data-theme="light"] .doc-theme-toggle .ico-sun { display: block; }
:root[data-theme="light"] .doc-theme-toggle .ico-moon { display: none; }

/* ---------------- Layout ---------------- */
.doc-shell {
  display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  max-width: 1540px; margin-inline: auto; padding: calc(var(--topbar-h) + 24px) 20px 40px;
  gap: 2.2rem; min-height: 80vh;
}
.doc-sidebar {
  position: sticky; top: calc(var(--topbar-h) + 24px); align-self: start;
  max-height: calc(100vh - var(--topbar-h) - 48px); overflow-y: auto; padding-right: 0.4rem;
}
.doc-nav-home {
  display: block; padding: 0.5rem 0.7rem; border-radius: 8px; margin-bottom: 0.5rem;
  font-weight: 700; color: var(--text); font-size: 0.92rem;
}
.doc-nav-home:hover { background: color-mix(in srgb, var(--surface-2) 70%, transparent); }
.doc-nav-home.active { color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, transparent); }
.doc-nav-group { border-top: 1px solid var(--border); }
.doc-nav-group:first-of-type { border-top: none; }
.doc-nav-group-title {
  display: flex; align-items: center; gap: 0.55rem; cursor: pointer; list-style: none;
  font-size: 0.78rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--muted); padding: 0.7rem 0.5rem; user-select: none;
}
.doc-nav-group-title::-webkit-details-marker { display: none; }
.doc-nav-group-title:hover { color: var(--text); }
.doc-nav-group-title .ico { color: var(--primary); flex-shrink: 0; }
.doc-nav-group-title span { flex: 1; }
.doc-nav-caret { transition: transform 0.18s ease; color: var(--muted-soft); }
.doc-nav-group[open] > .doc-nav-group-title .doc-nav-caret { transform: rotate(180deg); }
.doc-nav-links { padding: 0 0 0.6rem 0.2rem; display: flex; flex-direction: column; gap: 1px; }
.doc-nav-link {
  display: block; padding: 0.42rem 0.7rem 0.42rem 1.9rem; border-radius: 8px;
  color: var(--muted); font-size: 0.9rem; font-weight: 500;
}
.doc-nav-link:hover { color: var(--text); background: color-mix(in srgb, var(--surface-2) 70%, transparent); }
.doc-nav-link.active {
  color: var(--primary); font-weight: 700;
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  box-shadow: inset 2px 0 0 var(--primary);
}
.doc-sidebar-foot { margin-top: 1.2rem; padding: 0.9rem 0.7rem 0; border-top: 1px solid var(--border); font-size: 0.85rem; }
.doc-scrim { position: fixed; inset: 0; z-index: 49; background: rgba(5, 10, 20, 0.6); }

.doc-main { display: grid; grid-template-columns: minmax(0, 1fr) var(--toc-w); gap: 2.4rem; align-items: start; }
.doc-article { min-width: 0; max-width: 48rem; }
.doc-crumbs { display: flex; flex-wrap: wrap; gap: 0.45rem; font-size: 0.82rem; color: var(--muted-soft); margin-bottom: 1rem; }
.doc-crumbs strong { color: var(--primary); font-weight: 600; }
.doc-article h1 { font-size: clamp(1.9rem, 3.4vw, 2.5rem); margin-bottom: 0.7rem; }
.doc-lede { font-size: 1.08rem; line-height: 1.65; color: var(--muted); }
.doc-updated { font-size: 0.8rem; color: var(--muted-soft); margin: 0.4rem 0 2rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--border); }
.doc-section { margin-bottom: 2.5rem; scroll-margin-top: calc(var(--topbar-h) + 20px); }
.doc-section h2 { font-size: 1.4rem; margin-bottom: 0.8rem; padding-top: 0.4rem; position: relative; }
.doc-section h3 { font-size: 1.04rem; margin: 1.3rem 0 0.5rem; color: var(--heading); }
.doc-section p { margin-bottom: 0.9rem; }
.doc-section ul, .doc-section ol { color: var(--muted); margin: 0 0 1rem; padding-left: 1.3rem; }
.doc-section li { margin-bottom: 0.45rem; }
.doc-section li::marker { color: var(--primary); }
.doc-anchor {
  position: absolute; left: -1.1rem; top: 0.45rem; color: var(--muted-soft); opacity: 0;
  font-weight: 700; font-size: 1rem; transition: opacity 0.12s ease;
}
.doc-section h2:hover .doc-anchor { opacity: 1; }
.doc-anchor:hover { color: var(--primary); }

/* Steps list (ordered, numbered chips) */
.doc-section ol { counter-reset: step; list-style: none; padding-left: 0; }
.doc-section ol > li {
  position: relative; padding-left: 2.2rem; margin-bottom: 0.7rem; counter-increment: step;
}
.doc-section ol > li::before {
  content: counter(step); position: absolute; left: 0; top: -0.05rem;
  width: 1.55rem; height: 1.55rem; border-radius: 50%;
  background: color-mix(in srgb, var(--primary) 16%, transparent);
  color: var(--primary); font-size: 0.82rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center; border: 1px solid var(--border-strong);
}

/* Tables */
.doc-section table { width: 100%; border-collapse: collapse; margin: 0 0 1.1rem; font-size: 0.9rem; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; display: block; overflow-x: auto; }
.doc-section th {
  text-align: left; padding: 0.6rem 0.8rem; color: var(--muted); font-size: 0.74rem;
  letter-spacing: 0.06em; text-transform: uppercase; background: var(--surface-2);
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
.doc-section td { padding: 0.65rem 0.8rem; border-bottom: 1px solid var(--border); color: var(--muted); vertical-align: top; }
.doc-section tr:last-child td { border-bottom: none; }
.doc-section td:first-child { color: var(--text); font-weight: 600; }

/* Callouts */
.callout {
  display: flex; gap: 0.7rem; padding: 0.9rem 1.05rem 0.9rem 1rem; margin: 0 0 1.2rem;
  border-radius: 12px; border: 1px solid var(--border-strong); border-left-width: 3px;
  background: color-mix(in srgb, var(--primary) 8%, transparent); font-size: 0.93rem;
}
.callout::before { font-weight: 800; flex-shrink: 0; font-size: 0.78rem; letter-spacing: 0.04em; text-transform: uppercase; padding-top: 0.08rem; }
.callout p, .callout span { margin: 0; color: var(--text); }
.callout p + p { margin-top: 0.5rem; }
.callout.tip { border-left-color: var(--primary); }
.callout.tip::before { content: "Tip"; color: var(--primary); }
.callout.note { border-left-color: var(--info); background: color-mix(in srgb, var(--info) 9%, transparent); }
.callout.note::before { content: "Note"; color: var(--info); }
.callout.best { border-left-color: var(--primary); }
.callout.best::before { content: "Best practice"; color: var(--primary); }
.callout.warn { border-color: color-mix(in srgb, var(--warning) 45%, transparent); border-left-color: var(--warning); background: color-mix(in srgb, var(--warning) 10%, transparent); }
.callout.warn::before { content: "Warning"; color: var(--warning); }
.callout.danger { border-color: color-mix(in srgb, var(--danger) 55%, transparent); border-left-color: var(--danger); background: color-mix(in srgb, var(--danger) 11%, transparent); }
.callout.danger::before { content: "Caution"; color: var(--danger); }

/* Related articles */
.doc-related { margin-top: 2.6rem; padding-top: 1.6rem; border-top: 1px solid var(--border); }
.doc-related h2 { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-soft); margin-bottom: 0.9rem; }
.doc-related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
.doc-related-link {
  display: flex; align-items: center; justify-content: space-between; gap: 0.6rem;
  padding: 0.75rem 0.95rem; border: 1px solid var(--border); border-radius: 11px;
  background: var(--surface); color: var(--text); font-weight: 600; font-size: 0.92rem;
}
.doc-related-link:hover { border-color: var(--primary); color: var(--primary); }
.doc-related-link svg { color: var(--muted-soft); flex-shrink: 0; }
.doc-related-link:hover svg { color: var(--primary); }

/* Pager */
.doc-pager { display: flex; justify-content: space-between; gap: 1rem; margin-top: 2.6rem; padding-top: 1.4rem; border-top: 1px solid var(--border); }
.doc-pager-link {
  display: flex; flex-direction: column; gap: 0.15rem; padding: 0.8rem 1rem; min-width: 10rem;
  border: 1px solid var(--border); border-radius: 12px; background: var(--surface);
}
.doc-pager-link:hover { border-color: var(--primary); }
.doc-pager-link small { color: var(--muted-soft); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.06em; }
.doc-pager-link span { color: var(--text); font-weight: 700; font-size: 0.95rem; }
.doc-pager-link.next { text-align: right; margin-left: auto; }

/* On-this-page ToC */
.doc-toc { position: sticky; top: calc(var(--topbar-h) + 24px); font-size: 0.85rem; border-left: 1px solid var(--border); padding-left: 1rem; max-height: calc(100vh - var(--topbar-h) - 48px); overflow-y: auto; }
.doc-toc-title { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-soft); margin-bottom: 0.6rem; }
.doc-toc a { display: block; padding: 0.24rem 0; color: var(--muted); border-left: 2px solid transparent; padding-left: 0.6rem; margin-left: -1.6rem; }
.doc-toc a:hover { color: var(--primary); }
.doc-toc a.active { color: var(--primary); border-left-color: var(--primary); font-weight: 600; }

/* Footer */
.doc-footer { border-top: 1px solid var(--border); background: var(--bg-deep); }
.doc-footer-inner { max-width: 1540px; margin-inline: auto; padding: 1.2rem 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.8rem; color: var(--muted-soft); font-size: 0.85rem; }
.doc-footer-links { display: flex; gap: 1.2rem; }
.doc-footer-links a { color: var(--muted); }

/* ---------------- Docs home ---------------- */
.home-main { display: block; }
.doc-article.home { max-width: 70rem; }
.home-eyebrow { color: var(--primary); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 0.7rem; }
.doc-article.home h1 { font-size: clamp(2.1rem, 4vw, 3rem); }
.home-lede { max-width: 46rem; margin-bottom: 1.8rem; }
.home-quick { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; margin: 0 0 2.4rem; }
.home-quick-link {
  display: flex; flex-direction: column; gap: 0.25rem; padding: 1rem 1.15rem;
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  background: color-mix(in srgb, var(--primary) 8%, var(--surface));
}
.home-quick-link:hover { border-color: var(--primary); transform: translateY(-2px); }
.home-quick-link { transition: transform 0.15s ease, border-color 0.15s ease; }
.home-quick-link strong { color: var(--text); }
.home-quick-link span { color: var(--muted); font-size: 0.86rem; }
.home-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.home-card {
  display: flex; flex-direction: column; gap: 0.5rem; padding: 1.3rem 1.35rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--card-grad);
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.home-card:hover { transform: translateY(-3px); border-color: var(--border-strong); box-shadow: var(--shadow); }
.home-card-icon {
  display: inline-flex; align-items: center; justify-content: center; width: 2.6rem; height: 2.6rem;
  border-radius: 11px; background: color-mix(in srgb, var(--primary) 14%, transparent);
  color: var(--primary); margin-bottom: 0.2rem;
}
.home-card h3 { font-size: 1.08rem; }
.home-card h3 a { color: var(--heading); }
.home-card h3 a:hover { color: var(--primary); }
.home-card > p { font-size: 0.9rem; margin: 0; color: var(--muted); }
.home-card-list { list-style: none; margin: 0.3rem 0 0.4rem; padding: 0; display: flex; flex-direction: column; gap: 0.15rem; }
.home-card-list li { font-size: 0.85rem; }
.home-card-list a { color: var(--muted); }
.home-card-list a:hover { color: var(--primary); }
.home-card-go { color: var(--muted-soft); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; margin-top: auto; padding-top: 0.5rem; }

/* ---------------- Responsive ---------------- */
@media (max-width: 1180px) {
  .doc-main { grid-template-columns: 1fr; }
  .doc-toc { display: none; }
  .home-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 960px) {
  .doc-shell { grid-template-columns: 1fr; }
  .doc-nav-toggle { display: inline-flex; }
  .doc-sidebar {
    position: fixed; left: 0; top: var(--topbar-h); bottom: 0; z-index: 50;
    width: min(320px, 86vw); max-height: none; padding: 1rem 1rem 2rem;
    background: var(--bg-deep); border-right: 1px solid var(--border);
    transform: translateX(-102%); transition: transform 0.22s ease;
  }
  body.nav-open .doc-sidebar { transform: translateX(0); }
  .home-quick { grid-template-columns: 1fr; }
  .doc-topbar-links a:not(.doc-topbar-cta) { display: none; }
}
@media (max-width: 720px) {
  .home-cards { grid-template-columns: 1fr; }
  .doc-related-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .doc-brand-tag { display: none; }
  .doc-search-kbd { display: none; }
  .doc-pager { flex-direction: column; }
  .doc-pager-link.next { margin-left: 0; text-align: left; }
  .doc-topbar-cta { display: none !important; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important; scroll-behavior: auto !important;
  }
}