:root {
  color-scheme: dark;
  --manual-bg: #050505;
  --manual-surface: #0b0b0b;
  --manual-surface-2: #111;
  --manual-line: #242424;
  --manual-line-strong: #343434;
  --manual-ink: #f4f4f2;
  --manual-muted: #a3a39d;
  --manual-dim: #75756f;
  --manual-accent: #c8423a;
  font-family: Onest, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--manual-bg); color: var(--manual-ink); }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
[hidden] { display: none !important; }

.manual-topbar {
  position: sticky; top: 0; z-index: 1000; height: 46px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 14px; border-bottom: 1px solid var(--manual-line);
  background: rgba(5, 5, 5, .96); backdrop-filter: blur(16px);
}
.manual-brand {
  min-width: 0; display: inline-flex; align-items: center; gap: 8px;
  color: var(--manual-ink); text-decoration: none; font-size: 13px; font-weight: 700;
}
.manual-mark {
  width: 22px; height: 22px; display: grid; place-items: center;
  border: 1px solid #44302e; background: #120b0a; color: #e55f55; font-size: 13px;
}
.manual-topnav { display: flex; align-items: center; gap: 6px; }
.manual-topnav [data-manual-guide-toggle] { display: none; }
.manual-topnav a, .manual-topnav button {
  height: 28px; display: inline-flex; align-items: center;
  border: 1px solid transparent; border-radius: 5px; background: transparent;
  color: var(--manual-muted); padding: 0 9px; text-decoration: none; font-size: 12px; cursor: pointer;
}
.manual-topnav a:hover, .manual-topnav button:hover, .manual-topnav button[aria-expanded="true"] {
  border-color: var(--manual-line-strong); background: var(--manual-surface-2); color: var(--manual-ink);
}
.manual-topnav a.is-current {
  border-color: #44302e;
  background: #120b0a;
  color: #f1d3d0;
}

.manual-app-stage {
  position: relative; height: calc(100vh - 46px); min-height: 540px;
  display: grid; grid-template-columns: clamp(300px, 23vw, 360px) minmax(0, 1fr);
  overflow: hidden; background: #000;
}
.manual-preview-pane { position: relative; min-width: 0; min-height: 0; overflow: hidden; }
.manual-app-frame { display: block; width: 100%; height: 100%; border: 0; background: #050505; }
.manual-preview-status {
  position: absolute; left: 12px; bottom: 12px; z-index: 10;
  max-width: calc(100% - 24px); min-height: 24px; display: flex; align-items: center;
  border: 1px solid rgba(255, 255, 255, .12); border-radius: 5px;
  background: rgba(5, 5, 5, .84); color: #b5b5af; padding: 0 8px;
  font-size: 10.5px; pointer-events: none; backdrop-filter: blur(12px);
}

.manual-guide {
  position: relative; z-index: 50; min-width: 0; min-height: 0;
  display: grid; grid-template-rows: auto minmax(0, 1fr);
  border-right: 1px solid var(--manual-line-strong); background: #070707;
}
.manual-selection-card {
  margin: 10px 10px 2px; overflow: hidden;
  border: 1px solid #69413d; border-left: 3px solid var(--manual-accent); border-radius: 7px;
  background: linear-gradient(145deg, rgba(200, 66, 58, .14), rgba(17, 17, 17, .96) 62%);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .24), inset 0 1px rgba(255, 255, 255, .025);
}
.manual-guide-head {
  min-height: 54px; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 12px; border-bottom: 1px solid rgba(200, 66, 58, .24);
}
.manual-guide-head div { min-width: 0; display: grid; gap: 2px; }
.manual-guide-head span {
  color: var(--manual-dim); font-size: 10px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
}
.manual-guide-head strong {
  overflow: hidden; color: var(--manual-ink); font-size: 13px;
  text-overflow: ellipsis; white-space: nowrap;
}
.manual-guide-head button {
  display: none;
  width: 28px; height: 28px; border: 1px solid var(--manual-line); border-radius: 5px;
  background: var(--manual-surface-2); color: var(--manual-muted); font-size: 18px; cursor: pointer;
}
.manual-guide-detail { display: grid; gap: 10px; padding: 12px; }
.manual-guide-detail > p { margin: 0; color: #cdcdc8; font-size: 12px; line-height: 1.5; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.detail-meta span {
  border: 1px solid var(--manual-line); border-radius: 4px; background: var(--manual-surface-2);
  color: var(--manual-dim); padding: 3px 6px; font-size: 10px;
}
.manual-detail-steps {
  margin: 0; display: grid; gap: 5px; padding-left: 18px;
  color: var(--manual-muted); font-size: 11px; line-height: 1.45;
}
.manual-note {
  border-left: 2px solid #735d31; background: #161208;
  color: #d6c395 !important; padding: 8px 9px;
}
.manual-detail-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.manual-detail-actions a, .manual-detail-actions button {
  border: 1px solid var(--manual-line-strong); border-radius: 4px;
  background: var(--manual-surface-2); color: var(--manual-ink);
  padding: 5px 8px; text-decoration: none; font-size: 10.5px;
}

.manual-guide-browser {
  min-height: 0; display: grid; grid-template-rows: auto auto auto minmax(0, 1fr);
  gap: 7px; padding: 10px 12px 12px;
}
.manual-guide-browser > label {
  color: var(--manual-dim); font-size: 10px; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
}
.manual-guide-browser input {
  width: 100%; height: 32px; border: 1px solid var(--manual-line-strong); border-radius: 5px;
  outline: 0; background: var(--manual-surface); color: var(--manual-ink); padding: 0 9px; font-size: 12px;
}
.manual-guide-browser input:focus { border-color: #5d5d58; }
.manual-guide-browser input::placeholder { color: #686863; }
.search-status { min-height: 14px; margin: 0; color: var(--manual-dim); font-size: 10px; }
.manual-feature-tree { min-height: 0; overflow: auto; padding-right: 2px; }
.manual-folder { border-top: 1px solid var(--manual-line); }
.manual-folder summary { padding: 9px 2px; color: #d9d9d4; font-size: 11px; font-weight: 700; cursor: pointer; }
.manual-tree-subgroup { padding: 0 2px 7px; color: var(--manual-dim); font-size: 10px; line-height: 1.4; }
.manual-node {
  width: 100%; min-height: 30px; display: block; overflow: hidden;
  border: 0; border-left: 2px solid transparent; background: transparent;
  color: var(--manual-muted); padding: 6px 8px; text-align: left;
  text-overflow: ellipsis; white-space: nowrap; font-size: 11px; cursor: pointer;
}
.manual-node:hover { background: var(--manual-surface-2); color: var(--manual-ink); }
.manual-node.is-active { border-left-color: var(--manual-accent); background: #15100f; color: #fff; }

.manual-reference { max-width: 1180px; margin: 0 auto; padding: 72px 28px 100px; }
.manual-reference-head { max-width: 780px; display: grid; gap: 12px; margin-bottom: 56px; }
.manual-reference-head > p, .section-heading > p, .feature-heading > p {
  margin: 0; color: var(--manual-accent);
  font: 700 10px/1.2 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .08em; text-transform: uppercase;
}
.manual-reference-head h1 {
  margin: 0; color: var(--manual-ink); font-size: clamp(30px, 5vw, 54px);
  font-weight: 650; letter-spacing: -.04em; line-height: 1.02;
}
.manual-reference-head > span { color: var(--manual-muted); font-size: 15px; line-height: 1.65; }
.manual-reference-head > div { display: flex; gap: 14px; color: var(--manual-dim); }
.manual-section { padding: 38px 0; border-top: 1px solid var(--manual-line); }
.section-heading { display: grid; gap: 7px; margin-bottom: 18px; }
.section-heading h2 { margin: 0; color: var(--manual-ink); font-size: 23px; font-weight: 620; letter-spacing: -.02em; }
.section-heading > span { max-width: 760px; color: var(--manual-muted); font-size: 13px; line-height: 1.55; }
.feature-list {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--manual-line); border-left: 1px solid var(--manual-line);
}
.feature-detail {
  min-width: 0; padding: 18px; border-right: 1px solid var(--manual-line);
  border-bottom: 1px solid var(--manual-line); background: #080808;
}
.feature-detail:target { outline: 1px solid var(--manual-accent); outline-offset: -1px; background: #100d0c; }
.feature-heading { display: flex; justify-content: space-between; gap: 10px; }
.feature-heading a { color: var(--manual-dim); font-size: 10px; text-decoration: none; }
.feature-detail h3 { margin: 9px 0 6px; color: var(--manual-ink); font-size: 14px; font-weight: 620; }
.feature-summary { margin: 0; color: var(--manual-muted); font-size: 12px; line-height: 1.55; }
.feature-detail ol { margin: 12px 0 0; padding-left: 18px; color: var(--manual-dim); font-size: 11px; line-height: 1.55; }
.feature-detail .manual-note { margin-top: 12px; }
.feature-detail .manual-note strong {
  display: block; margin-bottom: 3px; color: #d6c395;
  font-size: 9px; letter-spacing: .08em; text-transform: uppercase;
}
.empty-state { color: var(--manual-muted); }

@media (max-width: 760px) {
  .manual-topnav .manual-product-link:not(.is-current), .manual-topnav a:last-child { display: none; }
  .manual-topbar { padding: 0 8px; }
  .manual-topnav [data-manual-guide-toggle] { display: inline-flex; }
  .manual-app-stage { display: block; min-height: 620px; }
  .manual-preview-pane { width: 100%; height: 100%; }
  .manual-guide {
    position: absolute; inset: 0 auto 0 0; width: min(360px, calc(100% - 24px));
    box-shadow: 18px 0 48px rgba(0, 0, 0, .42); transform: translateX(-102%);
    transition: transform 160ms ease;
  }
  .manual-guide.is-open { transform: translateX(0); }
  .manual-guide-head button { display: block; }
  .manual-preview-status { display: none; }
  .manual-reference { padding: 52px 16px 72px; }
  .feature-list { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .manual-guide { transition: none; }
}