:root {
  color-scheme: dark;
  --ink: #f3f7fc;
  --muted: #91a2b9;
  --faint: #60728a;
  --canvas: #07111f;
  --canvas-soft: #0a1728;
  --panel: #0d1c30;
  --panel-2: #11243b;
  --line: rgba(151, 177, 211, .16);
  --line-strong: rgba(151, 177, 211, .28);
  --blue: #4d8dff;
  --blue-bright: #72a6ff;
  --cyan: #63d5dc;
  --warm: #f4c978;
  --danger: #ff9b8c;
  --sidebar: 286px;
  --header: 68px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header) + 26px); }
body { margin: 0; background: var(--canvas); color: var(--ink); font-family: "Satoshi", sans-serif; font-size: 16px; line-height: 1.7; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.016) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.016) 1px, transparent 1px); background-size: 44px 44px; mask-image: linear-gradient(to bottom, #000, transparent 76%); z-index: -1; }
a { color: inherit; }
button, input { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; clip: rect(0,0,0,0); overflow: hidden; white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 200; padding: 8px 12px; border-radius: 6px; background: white; color: #07111f; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.guide-progress { position: fixed; top: 0; left: 0; right: 0; z-index: 110; height: 2px; background: transparent; }
.guide-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--blue), var(--cyan)); }

.guide-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--header); padding: 0 28px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); background: rgba(7, 17, 31, .9); backdrop-filter: blur(18px); }
.guide-header-identity { display: flex; align-items: center; gap: 24px; min-width: 0; }
.guide-brand { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; font-weight: 900; letter-spacing: -.02em; }
.guide-brand img { width: 27px; height: 27px; object-fit: contain; filter: brightness(0) invert(1); }
.guide-brand span { font-size: 20px; }
.guide-brand em { margin-left: 4px; padding-left: 13px; border-left: 1px solid var(--line-strong); color: var(--muted); font-size: 13px; font-style: normal; font-weight: 700; letter-spacing: .04em; }
.guide-legal-nav { display: flex; align-items: center; gap: 16px; padding-left: 24px; border-left: 1px solid var(--line); }
.guide-legal-nav a { color: var(--faint); font-size: 11px; font-weight: 700; text-decoration: none; transition: color .18s ease; }
.guide-legal-nav a:hover { color: var(--ink); }
.guide-header-nav { display: flex; align-items: center; gap: 24px; }
.guide-header-nav > a { color: var(--muted); font-size: 13px; font-weight: 700; text-decoration: none; transition: color .18s ease; }
.guide-header-nav > a:last-of-type { padding: 8px 13px; border: 1px solid var(--line-strong); border-radius: 7px; color: var(--ink); }
.guide-header-nav > a:hover { color: var(--ink); }
.guide-mobile-toggle { display: none; width: 40px; height: 40px; padding: 10px; border: 1px solid var(--line); border-radius: 7px; background: var(--panel); }
.guide-mobile-toggle span { display: block; height: 1px; margin: 4px 0; background: var(--ink); }

.guide-shell { min-height: 100vh; padding-top: var(--header); display: grid; grid-template-columns: var(--sidebar) minmax(0, 1fr); }
.guide-sidebar { position: sticky; top: var(--header); align-self: start; height: calc(100vh - var(--header)); padding: 24px 22px; overflow-y: auto; border-right: 1px solid var(--line); background: rgba(8, 20, 35, .78); scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.guide-search-wrap { position: relative; display: flex; align-items: center; }
.guide-search-wrap svg { position: absolute; left: 11px; width: 17px; fill: none; stroke: var(--faint); stroke-width: 1.8; }
.guide-search-wrap input { width: 100%; height: 40px; padding: 0 40px 0 36px; border: 1px solid var(--line); border-radius: 7px; outline: none; background: rgba(255,255,255,.025); color: var(--ink); font-size: 13px; }
.guide-search-wrap input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(77,141,255,.1); }
.guide-search-wrap kbd { position: absolute; right: 10px; width: 21px; height: 21px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 4px; color: var(--faint); font-size: 11px; }
.guide-search-empty { margin: 13px 2px 0; color: var(--faint); font-size: 12px; }
.guide-tree { margin-top: 26px; }
.guide-tree-group { margin-bottom: 24px; }
.guide-tree-group > span { display: block; margin: 0 10px 7px; color: var(--faint); font-size: 10px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.guide-tree a { position: relative; display: block; padding: 6px 10px; border-radius: 5px; color: var(--muted); font-size: 13px; font-weight: 600; text-decoration: none; transition: color .15s ease, background .15s ease; }
.guide-tree a::before { content: ""; position: absolute; left: -22px; top: 50%; width: 2px; height: 0; background: var(--blue); transform: translateY(-50%); transition: height .15s ease; }
.guide-tree a:hover { color: var(--ink); background: rgba(255,255,255,.035); }
.guide-tree a.is-active { color: var(--ink); background: rgba(77,141,255,.09); }
.guide-tree a.is-active::before { height: 24px; }
.guide-tree a[hidden], .guide-tree-group[hidden] { display: none; }
.guide-sidebar-card { margin-top: 36px; padding: 16px; border: 1px solid var(--line); border-radius: 8px; background: linear-gradient(145deg, rgba(77,141,255,.1), rgba(99,213,220,.035)); }
.guide-sidebar-card span, .guide-sidebar-card strong { display: block; }
.guide-sidebar-card span { color: var(--blue-bright); font-size: 10px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.guide-sidebar-card strong { margin: 4px 0 12px; font-size: 13px; }
.guide-sidebar-card a { color: var(--muted); font-size: 12px; text-decoration: none; }
.guide-sidebar-card a span { display: inline; color: inherit; }
.guide-sidebar-scrim { display: none; }

.guide-content { width: min(860px, calc(100% - 80px)); margin: 0 auto; padding: 0 0 140px; }
.guide-chapter-content { min-height: calc(100vh - var(--header)); }
.guide-chapter-content .guide-section { padding-top: 82px; }
.guide-chapter-pager { margin-top: 84px; display: grid; grid-template-columns: minmax(180px, 300px) minmax(180px, 300px); justify-content: space-between; gap: 48px; }
.guide-chapter-pager > a { position: relative; min-height: 74px; padding: 20px 0 0; display: flex; flex-direction: column; justify-content: flex-start; border: 0; border-radius: 0; background: transparent; text-decoration: none; transition: transform .18s ease; }
.guide-chapter-pager > a::before { content: ""; position: absolute; top: 0; left: 0; width: 54px; height: 2px; background: var(--line-strong); transition: width .2s ease, background .2s ease; }
.guide-chapter-pager > a.is-next::before { right: 0; left: auto; }
.guide-chapter-pager > a:hover { transform: translateY(-2px); }
.guide-chapter-pager > a:hover::before { width: 88px; background: var(--blue); }
.guide-chapter-pager > a.is-next { text-align: right; }
.guide-chapter-pager small { color: var(--faint); font-size: 10px; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.guide-chapter-pager strong { margin-top: 5px; color: var(--ink); font-size: 14px; }
.guide-page-loading { min-height: 100vh; display: grid; place-items: center; background: var(--canvas); color: var(--muted); font-size: 13px; }
.guide-page-loading span { display: inline-flex; align-items: center; gap: 10px; }
.guide-page-loading span::before { content: ""; width: 16px; height: 16px; border: 2px solid var(--line-strong); border-top-color: var(--blue); border-radius: 50%; animation: guide-spin .7s linear infinite; }
.guide-load-error { min-height: 100vh; padding: 50px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; background: var(--canvas); }
.guide-load-error h1 { margin: 45px 0 10px; font-family: "Sentient", serif; font-size: clamp(38px, 6vw, 68px); }
.guide-load-error p { max-width: 520px; margin: 0 0 24px; color: var(--muted); }
@keyframes guide-spin { to { transform: rotate(360deg); } }
.guide-section { position: relative; padding: 104px 0 8px; border-bottom: 1px solid var(--line); }
.guide-section:last-child { border-bottom: 0; }
.guide-hero { min-height: calc(100vh - var(--header)); padding-top: clamp(78px, 10vw, 126px); display: flex; flex-direction: column; justify-content: center; }
.guide-kicker, .section-marker { color: var(--blue-bright); font-size: 11px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.guide-kicker { display: flex; align-items: center; gap: 10px; }
.guide-kicker span { width: 26px; height: 1px; background: var(--blue); }
.guide-hero h1 { max-width: 780px; margin: 22px 0 26px; font-family: "Sentient", serif; font-size: clamp(52px, 7.4vw, 92px); font-weight: 500; letter-spacing: -.055em; line-height: .99; }
.guide-hero h1 em { color: var(--blue-bright); font-style: italic; }
.guide-hero-lead { max-width: 680px; margin: 0; color: #b2bfd0; font-size: clamp(18px, 2vw, 22px); line-height: 1.55; }
.guide-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.guide-button { display: inline-flex; min-height: 42px; padding: 0 17px; align-items: center; justify-content: center; border: 1px solid var(--line-strong); border-radius: 7px; color: var(--ink); font-size: 13px; font-weight: 800; text-decoration: none; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.guide-button:hover { transform: translateY(-2px); border-color: rgba(151,177,211,.5); }
.guide-button.is-primary { border-color: var(--blue); background: var(--blue); color: #06111f; }
.guide-hero-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 64px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.guide-hero-grid article { min-height: 160px; padding: 22px 18px; border-right: 1px solid var(--line); }
.guide-hero-grid article:last-child { border-right: 0; }
.guide-hero-grid span { color: var(--faint); font-family: "Sentient", serif; font-size: 12px; }
.guide-hero-grid strong { display: block; margin: 18px 0 3px; font-size: 16px; }
.guide-hero-grid p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.55; }

.section-marker { margin-bottom: 15px; }
.guide-section h2 { max-width: 700px; margin: 0 0 20px; font-family: "Sentient", serif; font-size: clamp(38px, 5vw, 58px); font-weight: 500; letter-spacing: -.035em; line-height: 1.1; }
.guide-section h3 { margin: 48px 0 16px; font-size: 21px; letter-spacing: -.015em; }
.guide-section p { color: #aab8ca; }
.guide-section p b { color: var(--ink); }
.section-intro { max-width: 760px; margin: 0 0 36px; font-size: 18px; }
.guide-callout, .guide-warning, .guide-note { margin: 30px 0; padding: 18px 20px; border-left: 2px solid var(--blue); background: rgba(77,141,255,.07); }
.guide-warning { border-left-color: var(--warm); background: rgba(244,201,120,.06); }
.guide-note { display: grid; grid-template-columns: 100px 1fr; gap: 18px; border: 1px solid var(--line); border-left: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,.018); }
.guide-callout strong, .guide-warning strong, .guide-note span { color: var(--ink); font-size: 13px; }
.guide-warning strong { color: var(--warm); }
.guide-note span { color: var(--blue-bright); font-size: 10px; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.guide-callout p, .guide-warning p, .guide-note p { margin: 3px 0 0; font-size: 14px; }

.guide-steps { margin: 34px 0; padding: 0; list-style: none; }
.guide-steps li { display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 24px 0; border-top: 1px solid var(--line); }
.guide-steps li:last-child { border-bottom: 1px solid var(--line); }
.guide-steps li > span { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--blue-bright); font-family: "Sentient", serif; font-size: 13px; }
.guide-steps strong { font-size: 16px; }
.guide-steps p { margin: 4px 0 0; font-size: 14px; }
.guide-steps.is-compact li { padding: 17px 0; }

.feature-map { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 30px 0; border: 1px solid var(--line); background: var(--line); }
.feature-map article { min-height: 132px; padding: 22px; display: grid; grid-template-columns: 38px 1fr; gap: 13px; background: var(--canvas-soft); }
.feature-map.is-dense article { min-height: 112px; }
.feature-icon { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 7px; color: var(--blue-bright); font-family: "Sentient", serif; }
.feature-map strong { font-size: 15px; }
.feature-map p { margin: 4px 0 0; font-size: 13px; line-height: 1.55; }

.role-grid, .subsection-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 32px 0; }
.role-grid article, .subsection-grid article { padding: 22px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,.018); }
.role-grid article.is-accent { border-color: rgba(77,141,255,.42); background: rgba(77,141,255,.07); }
.role-grid span, .subsection-grid small { color: var(--blue-bright); font-size: 10px; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.role-grid h3, .subsection-grid h3 { margin: 10px 0; font-size: 18px; }
.role-grid ul { margin: 0; padding-left: 17px; color: var(--muted); font-size: 13px; }
.role-grid li { margin: 6px 0; }
.subsection-grid { grid-template-columns: 1fr 1fr; }
.subsection-grid.is-three { grid-template-columns: repeat(3, 1fr); }
.subsection-grid p { margin: 0; font-size: 13px; line-height: 1.6; }

.guide-table-wrap { margin: 25px 0 34px; overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
.guide-table-wrap table { width: 100%; border-collapse: collapse; min-width: 620px; }
.guide-table-wrap th, .guide-table-wrap td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.guide-table-wrap tr:last-child td { border-bottom: 0; }
.guide-table-wrap th { background: var(--panel); color: var(--faint); font-size: 10px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.guide-table-wrap td { color: #aebccd; font-size: 13px; }
.guide-table-wrap td:first-child { color: var(--ink); font-weight: 700; }

.guide-flow { display: grid; grid-template-columns: 1fr 22px 1fr 22px 1fr; align-items: center; margin: 28px 0 38px; }
.guide-flow > div { min-height: 150px; padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: var(--canvas-soft); }
.guide-flow > i { color: var(--faint); font-style: normal; text-align: center; }
.guide-flow span { color: var(--blue-bright); font-family: "Sentient", serif; font-size: 11px; }
.guide-flow strong { display: block; margin-top: 12px; font-size: 15px; }
.guide-flow p { margin: 4px 0 0; font-size: 12px; line-height: 1.55; }
.check-list { margin: 22px 0 34px; padding: 0; list-style: none; }
.check-list li { position: relative; margin: 11px 0; padding-left: 28px; color: #aebccd; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; color: var(--cyan); font-size: 12px; font-weight: 900; }
.task-lanes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 28px 0 38px; }
.task-lanes div { padding: 18px; border-top: 2px solid var(--blue); background: var(--panel); }
.task-lanes div:nth-child(2) { border-color: var(--warm); }
.task-lanes div:nth-child(3) { border-color: var(--cyan); }
.task-lanes span { font-weight: 900; }
.task-lanes p { margin: 4px 0 0; font-size: 12px; }

.workflow-stack { margin-top: 30px; }
.workflow-stack article { display: grid; grid-template-columns: 180px 1fr; gap: 28px; padding: 24px 0; border-top: 1px solid var(--line); }
.workflow-stack article:last-child { border-bottom: 1px solid var(--line); }
.workflow-stack > article > span { color: var(--ink); font-size: 14px; font-weight: 800; }
.workflow-stack ol { margin: 0; padding-left: 22px; color: var(--muted); font-size: 14px; }
.workflow-stack li { margin: 4px 0; padding-left: 5px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 19px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--ink); font-weight: 750; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--blue-bright); font-size: 18px; transition: transform .16s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { max-width: 720px; margin: -4px 0 20px; font-size: 14px; }
.glossary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 30px; border: 1px solid var(--line); background: var(--line); }
.glossary-grid div { padding: 18px; background: var(--canvas-soft); }
.glossary-grid dt { color: var(--ink); font-weight: 800; }
.glossary-grid dd { margin: 5px 0 0; color: var(--muted); font-size: 13px; }
.guide-finish { margin-top: 90px; padding: 52px; border-radius: 10px; background: linear-gradient(135deg, #102b4a, #0b2035 55%, #0b2d33); text-align: center; }
.guide-finish > span { color: var(--cyan); font-size: 10px; font-weight: 900; letter-spacing: .13em; text-transform: uppercase; }
.guide-finish h2 { margin: 15px auto; font-size: 42px; }
.guide-finish p { max-width: 590px; margin: 0 auto; }
.guide-finish > div { margin-top: 25px; display: flex; justify-content: center; gap: 10px; }


@media (max-width: 1180px) {
  .guide-shell { grid-template-columns: var(--sidebar) minmax(0, 1fr); }
}

@media (max-width: 860px) {
  .guide-header { padding: 0 18px; }
  .guide-header-nav > a { display: none; }
  .guide-legal-nav { gap: 12px; padding-left: 18px; }
  .guide-mobile-toggle { display: block; }
  .guide-shell { display: block; }
  .guide-sidebar { position: fixed; top: var(--header); bottom: 0; left: 0; z-index: 90; width: min(320px, 88vw); height: auto; background: #081423; transform: translateX(-102%); transition: transform .22s ease; box-shadow: 20px 0 50px rgba(0,0,0,.35); }
  .guide-sidebar.is-open { transform: translateX(0); }
  .guide-sidebar-scrim { position: fixed; inset: var(--header) 0 0; z-index: 80; display: block; border: 0; background: rgba(0,5,12,.7); opacity: 0; visibility: hidden; transition: opacity .2s ease, visibility .2s ease; }
  .guide-sidebar-scrim.is-open { opacity: 1; visibility: visible; }
  .guide-content { width: min(100% - 36px, 760px); }
  .guide-hero { min-height: auto; padding-top: 78px; }
  .guide-hero-grid { grid-template-columns: 1fr 1fr; }
  .guide-hero-grid article:nth-child(2) { border-right: 0; }
  .guide-hero-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .role-grid, .subsection-grid.is-three { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .guide-brand em { display: none; }
  .guide-legal-nav { display: none; }
  .guide-content { width: min(100% - 28px, 760px); }
  .guide-section { padding-top: 76px; }
  .guide-hero h1 { font-size: 48px; }
  .guide-hero-grid, .feature-map, .subsection-grid, .task-lanes, .glossary-grid { grid-template-columns: 1fr; }
  .guide-hero-grid article { border-right: 0; border-bottom: 1px solid var(--line); }
  .guide-hero-grid article:last-child { border-bottom: 0; }
  .feature-map article { min-height: 0; }
  .guide-flow { grid-template-columns: 1fr; gap: 8px; }
  .guide-flow > i { transform: rotate(90deg); }
  .guide-note { grid-template-columns: 1fr; gap: 3px; }
  .workflow-stack article { grid-template-columns: 1fr; gap: 8px; }
  .guide-finish { padding: 36px 20px; }
  .guide-finish h2 { font-size: 34px; }
  .guide-finish > div { flex-direction: column; }
  .guide-chapter-pager { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}