:root {
  --guide-ink: #10110f;
  --guide-paper: #f3f4ec;
  --guide-surface: #ffffff;
  --guide-line: #d6ddd7;
  --guide-muted: #586970;
  --guide-cyan: #53dbc8;
  --guide-lime: #c9f54a;
}

html { scroll-behavior: smooth; }
body.guide-page { color: var(--guide-ink); background: var(--guide-paper); }
.guide-shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.guide-header { position: sticky; top: 0; z-index: 40; background: rgba(243,244,236,.94); border-bottom: 1px solid var(--guide-line); backdrop-filter: blur(16px); }
.guide-header__inner { min-height: 72px; display: flex; align-items: center; gap: 28px; }
.guide-brand { width: 112px; display: inline-flex; }
.guide-brand img { width: 100%; height: auto; }
.guide-nav { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.guide-nav a { color: #425158; font-size: 12px; font-weight: 700; transition: color 180ms ease; }
.guide-nav a:hover, .guide-nav a:focus-visible, .guide-nav a[aria-current="page"] { color: var(--guide-ink); }
.guide-header__action { min-height: 40px; display: inline-flex; align-items: center; justify-content: center; padding: 0 16px; color: var(--guide-ink); background: var(--guide-lime); border-radius: 5px; font-size: 11px; font-weight: 800; }
.guide-header__action:active { transform: translateY(1px); }

.guide-hero { padding: 78px 0 86px; background: radial-gradient(circle at 86% 10%, rgba(83,219,200,.26), transparent 30%), var(--guide-paper); }
.guide-breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; color: #718087; font: 10px/1.4 var(--font-mono); }
.guide-breadcrumb a { color: #405158; }
.guide-kicker { margin: 0 0 16px; color: #137b70; font: 800 10px/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.guide-hero h1 { max-width: 920px; margin: 0; font-size: clamp(40px, 7vw, 84px); line-height: .96; letter-spacing: -.055em; text-wrap: balance; }
.guide-hero__lead { max-width: 780px; margin: 28px 0 0; color: #43545b; font-size: clamp(16px, 2vw, 21px); line-height: 1.52; text-wrap: pretty; }
.guide-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.guide-meta span { padding: 9px 11px; background: rgba(255,255,255,.68); border: 1px solid var(--guide-line); border-radius: 4px; color: #53636a; font: 9px/1 var(--font-mono); }

.guide-hub { padding: 72px 0 96px; }
.guide-hub__intro { max-width: 760px; margin-bottom: 42px; }
.guide-hub__intro h2 { margin: 0; font-size: clamp(30px, 4vw, 52px); letter-spacing: -.04em; }
.guide-hub__intro p { color: var(--guide-muted); font-size: 15px; line-height: 1.7; }
.guide-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 12px; }
.guide-card { min-height: 320px; display: flex; flex-direction: column; padding: 28px; color: var(--guide-ink); background: var(--guide-surface); border: 1px solid var(--guide-line); border-radius: 8px; transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease; }
.guide-card:nth-child(3n+1) { background: #e7f5ef; }
.guide-card:hover { transform: translateY(-3px); border-color: #a8bbb4; box-shadow: 0 20px 52px rgba(26,48,42,.10); }
.guide-card__code { color: #157a70; font: 800 10px/1 var(--font-mono); }
.guide-card h2 { max-width: 620px; margin: auto 0 16px; font-size: clamp(25px, 3vw, 39px); line-height: 1.02; letter-spacing: -.035em; text-wrap: balance; }
.guide-card p { max-width: 620px; margin: 0; color: var(--guide-muted); font-size: 13px; line-height: 1.62; }
.guide-card__link { margin-top: 24px; font-size: 11px; font-weight: 800; }
.guide-card.guide-card--tool { color: #f7f8f0; background: #101b18; border-color: #101b18; }
.guide-card.guide-card--tool:hover,
.guide-card.guide-card--tool:focus-visible { background: #172823; border-color: #315c4d; box-shadow: 0 22px 58px rgba(16, 43, 34, .2); }
.guide-card.guide-card--tool .guide-card__code,
.guide-card.guide-card--tool .guide-card__link { color: var(--guide-lime); }
.guide-card.guide-card--tool p { color: #bdcac6; }

.guide-layout { display: grid; grid-template-columns: 250px minmax(0, 760px); gap: 72px; align-items: start; padding: 72px 0 108px; }
.guide-toc { position: sticky; top: 98px; padding-top: 4px; }
.guide-toc strong { display: block; margin-bottom: 14px; font: 800 10px/1 var(--font-mono); text-transform: uppercase; }
.guide-toc ol { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; counter-reset: toc; }
.guide-toc li { counter-increment: toc; border-top: 1px solid var(--guide-line); }
.guide-toc li:last-child { border-bottom: 1px solid var(--guide-line); }
.guide-toc a { display: grid; grid-template-columns: 28px 1fr; gap: 8px; padding: 13px 0; color: #5e6d73; font-size: 11px; line-height: 1.35; }
.guide-toc a::before { content: counter(toc, decimal-leading-zero); color: #168277; font: 9px/1.5 var(--font-mono); }
.guide-toc a:hover { color: var(--guide-ink); }
.guide-article { min-width: 0; }
.guide-article section { scroll-margin-top: 100px; padding: 0 0 48px; }
.guide-article section + section { padding-top: 48px; border-top: 1px solid var(--guide-line); }
.guide-article h2 { margin: 0 0 20px; font-size: clamp(28px, 4vw, 44px); line-height: 1.04; letter-spacing: -.04em; text-wrap: balance; }
.guide-article h3 { margin: 28px 0 10px; font-size: 20px; letter-spacing: -.02em; }
.guide-article p, .guide-article li { color: #43545b; font-size: 15px; line-height: 1.76; }
.guide-article p { max-width: 68ch; margin: 12px 0; }
.guide-article ul, .guide-article ol { display: grid; gap: 8px; margin: 18px 0; padding-left: 22px; }
.guide-note { margin: 28px 0; padding: 22px 24px; background: #e4f3ed; border-left: 3px solid #147f74; border-radius: 0 7px 7px 0; }
.guide-note strong { display: block; margin-bottom: 7px; font-size: 13px; }
.guide-note p { margin: 0; font-size: 13px; }
.guide-table-wrap { margin: 26px 0; overflow-x: auto; border: 1px solid var(--guide-line); border-radius: 7px; background: var(--guide-surface); }
.guide-table { width: 100%; border-collapse: collapse; min-width: 620px; }
.guide-table th, .guide-table td { padding: 14px 16px; border-bottom: 1px solid var(--guide-line); text-align: left; vertical-align: top; font-size: 12px; line-height: 1.55; }
.guide-table th { color: #31464d; background: #eef2ed; font-weight: 800; }
.guide-table tr:last-child td { border-bottom: 0; }
.guide-cta { padding: 54px 0 64px; color: #f4f6ef; background: var(--guide-ink); }
.guide-cta__inner { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.guide-cta h2 { max-width: 780px; margin: 0; font-size: clamp(30px, 5vw, 58px); line-height: .98; letter-spacing: -.045em; }
.guide-cta p { max-width: 700px; color: #99a9af; font-size: 14px; line-height: 1.65; }
.guide-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.guide-button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; padding: 0 17px; border: 1px solid #506168; border-radius: 5px; color: #f8faf2; background: transparent; font-size: 11px; font-weight: 800; cursor: pointer; transition: transform 180ms ease, background 180ms ease, border-color 180ms ease; }
.guide-button:hover { background: #243139; border-color: #70858d; }
.guide-button:active { transform: translateY(1px); }
.guide-button--primary { color: var(--guide-ink); background: var(--guide-lime); border-color: var(--guide-lime); }
.guide-button--primary:hover { background: #d7fb70; border-color: #d7fb70; }

.guide-calculator { padding: 70px 0 100px; }
.calculator-layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 20px; align-items: start; }
.calculator-panel { padding: 28px; background: var(--guide-surface); border: 1px solid var(--guide-line); border-radius: 8px; }
.calculator-panel h2 { margin: 0 0 8px; font-size: 30px; letter-spacing: -.035em; }
.calculator-panel > p { margin: 0 0 24px; color: var(--guide-muted); font-size: 13px; line-height: 1.6; }
.calculator-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.calculator-field { display: grid; gap: 7px; }
.calculator-field label { color: #405158; font-size: 11px; font-weight: 800; }
.calculator-field input, .calculator-field select { width: 100%; min-height: 46px; padding: 0 12px; color: var(--guide-ink); background: #f7f8f3; border: 1px solid #bdc9c3; border-radius: 5px; font: 700 13px/1 var(--font-mono); }
.calculator-field input:focus-visible, .calculator-field select:focus-visible { outline: 3px solid rgba(83,219,200,.32); border-color: #168277; }
.calculator-field small { color: #718087; font-size: 10px; line-height: 1.4; }
.calculator-field--wide { grid-column: 1 / -1; }
.calculator-results { color: #f4f6ef; background: var(--guide-ink); border-color: var(--guide-ink); }
.calculator-results > p { color: #9dacb1; }
.calculator-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 26px 0; background: #344149; border: 1px solid #344149; }
.calculator-metric { min-height: 128px; display: grid; align-content: center; padding: 18px; background: #162027; }
.calculator-metric span { color: #93a4aa; font: 9px/1.4 var(--font-mono); text-transform: uppercase; }
.calculator-metric strong { margin-top: 8px; color: var(--guide-lime); font: 700 32px/1 var(--font-mono); font-variant-numeric: tabular-nums; }
.calculator-metric small { margin-top: 7px; color: #aab6ba; font-size: 10px; line-height: 1.4; }
.calculator-checklist { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.calculator-checklist li { position: relative; padding: 0 0 0 20px; color: #b1bfc3; font-size: 12px; line-height: 1.5; }
.calculator-checklist li::before { content: "+"; position: absolute; left: 0; color: var(--guide-cyan); font-family: var(--font-mono); }
.calculator-disclaimer { margin-top: 24px; padding-top: 18px; border-top: 1px solid #344149; color: #91a1a6; font-size: 10px; line-height: 1.55; }

.guide-footer { padding: 42px 0 30px; color: #b0bdc0; background: #0d1215; }
.guide-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 42px; }
.guide-footer img { width: 110px; }
.guide-footer p, .guide-footer address { color: #8f9da2; font-size: 11px; line-height: 1.6; font-style: normal; }
.guide-footer strong { display: block; margin-bottom: 12px; color: #f5f7ef; font-size: 11px; }
.guide-footer nav { display: grid; align-content: start; gap: 9px; }
.guide-footer a { color: #b8c4c7; font-size: 11px; }
.guide-footer__bottom { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px; padding-top: 18px; border-top: 1px solid #263237; font-size: 10px; }
.guide-footer button { padding: 0; color: #b8c4c7; background: transparent; border: 0; font: inherit; cursor: pointer; }

@media (max-width: 900px) {
  .guide-nav { display: none; }
  .guide-header__action { margin-left: auto; }
  .guide-grid, .calculator-layout { grid-template-columns: 1fr; }
  .guide-layout { grid-template-columns: 1fr; gap: 40px; }
  .guide-toc { position: static; }
  .guide-toc ol { grid-template-columns: 1fr 1fr; }
  .guide-cta__inner { grid-template-columns: 1fr; }
  .guide-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .guide-shell { width: min(100% - 24px, 1180px); }
  .guide-header__inner { min-height: 62px; }
  .guide-header__action { min-height: 36px; padding-inline: 12px; }
  .guide-hero { padding: 54px 0 62px; }
  .guide-grid, .calculator-fields, .calculator-metrics, .guide-footer__grid { grid-template-columns: 1fr; }
  .guide-card { min-height: 280px; padding: 22px; }
  .guide-layout { padding-top: 48px; }
  .guide-toc ol { grid-template-columns: 1fr; }
  .calculator-panel { padding: 20px; }
  .guide-cta { padding: 44px 0 50px; }
}

@media print {
  .guide-header, .guide-footer, .guide-cta, .guide-toc, .guide-actions, [data-print-hide] { display: none !important; }
  body.guide-page { background: #fff; }
  .guide-hero { padding: 20px 0; background: #fff; }
  .guide-hero h1 { font-size: 38px; }
  .guide-layout { display: block; padding: 20px 0; }
  .guide-article section { break-inside: avoid; }
}
.capability-band { padding: 76px 0 92px; background: var(--guide-paper); }
.capability-band--tinted { background: #e8f1ec; }
.capability-page .guide-hero h1 { max-width: 1080px; font-size: clamp(42px, 5.4vw, 68px); letter-spacing: -.045em; }
.capability-page .guide-hero__lead { max-width: 900px; }
.capability-intro { max-width: 880px; margin-bottom: 38px; }
.capability-intro h2 { margin: 0; font-size: clamp(32px, 5vw, 60px); line-height: 1; letter-spacing: -.045em; text-wrap: balance; }
.capability-intro > p:last-child { max-width: 70ch; color: var(--guide-muted); line-height: 1.72; }
.capability-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.capability-item { min-height: 210px; padding: 25px; background: #fff; border: 1px solid var(--guide-line); border-radius: 8px; }
.capability-item h3 { margin: 34px 0 10px; font-size: 22px; line-height: 1.08; letter-spacing: -.025em; }
.capability-item p { margin: 0; color: #53636a; font-size: 13px; line-height: 1.67; }
.capability-status { display: inline-flex; padding: 6px 8px; border-radius: 4px; font: 800 9px/1 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; }
.capability-item--driver .capability-status { color: #0d655c; background: #dff5ec; }
.capability-item--operator .capability-status { color: #31535f; background: #dfecef; }
@media (max-width: 720px) { .capability-grid { grid-template-columns: 1fr; } .capability-band { padding: 58px 0 68px; } }