/* Place Insight root landing */
:root {
  --canvas: #f3f0e7;
  --paper: #fbfaf5;
  --ink: #151713;
  --ink-soft: #242821;
  --muted: #666b62;
  --line: #c9c8bf;
  --line-dark: #42463f;
  --green: #008e63;
  --green-light: #c9ff4d;
  --blue: #2457d6;
  --red: #d94a3a;
  --amber: #be741b;
  --frame: 1360px;
  --gutter: clamp(18px, 3.2vw, 48px);
  --font: Inter, Pretendard, "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
}
body.menu-open { overflow: hidden; }
button, input, select, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
p, h1, h2, h3, dl, dd, ol, ul { margin: 0; }
ul, ol { padding: 0; list-style: none; }
::selection { background: var(--green-light); color: var(--ink); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 14px;
  transform: translateY(-160%);
  background: var(--ink);
  color: #fff;
  font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }

.content-frame {
  width: min(100%, var(--frame));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(243, 240, 231, .96);
  transition: border-color .2s ease;
}
.site-header.scrolled { border-color: var(--line); }
.header-inner {
  min-height: 72px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 0 var(--gutter);
}
.brand { display: inline-flex; width: max-content; align-items: center; gap: 11px; }
.brand-mark { width: 34px; height: 34px; flex: 0 0 auto; color: var(--ink); }
.brand-name { display: flex; align-items: baseline; font-size: 18px; letter-spacing: -.045em; line-height: 1; white-space: nowrap; }
.brand-name span { font-weight: 500; }
.brand-name strong { color: var(--green); font-weight: 900; }
.desktop-nav { display: flex; align-items: center; gap: 32px; }
.desktop-nav a, .text-link { color: #41463f; font-size: 13px; font-weight: 800; }
.desktop-nav a { position: relative; padding: 25px 0 24px; }
.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 18px;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--green);
  transition: transform .2s ease;
}
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { transform: scaleX(1); }
.header-actions { display: flex; justify-self: end; align-items: center; gap: 18px; }
.header-live {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 850;
}
.header-live:hover { background: var(--green); border-color: var(--green); }
.menu-toggle {
  width: 42px;
  height: 42px;
  display: none;
  place-content: center;
  gap: 4px;
  padding: 0;
  border: 1px solid var(--ink);
  background: transparent;
}
.menu-toggle span:not(.sr-only) { width: 18px; height: 2px; display: block; background: var(--ink); }
.mobile-nav {
  display: none;
  padding: 12px var(--gutter) 24px;
  border-top: 1px solid var(--line);
  background: var(--canvas);
}
.mobile-nav a { padding: 13px 0; border-bottom: 1px solid var(--line); font-weight: 800; }

/* Shared type */
.section-label, .section-number {
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .13em;
}
.section-label span { color: var(--green); }
.section-number { margin-bottom: 26px; }
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: 28px 64px;
  align-items: end;
  padding: 110px 0 46px;
  border-top: 1px solid var(--ink);
}
.section-head .section-number { grid-column: 1 / -1; margin: 0; }
.section-head h2, .chapter-copy h2, .property-grid h2, .audience-title h2, .start-section h2 {
  font-size: clamp(42px, 5.4vw, 76px);
  line-height: .99;
  letter-spacing: -.065em;
  font-weight: 900;
}
.section-head > p:last-child, .chapter-copy > p, .property-grid .chapter-copy > p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

/* Hero */
.section-grid {
  width: 100%;
  min-height: 820px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(500px, .95fr);
  padding: 132px var(--gutter) 58px;
  border-bottom: 1px solid var(--ink);
}
.hero-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 54px clamp(28px, 5vw, 86px) 48px 0;
  border-right: 1px solid var(--ink);
}
.hero h1 {
  max-width: 900px;
  margin: 30px 0 34px;
  font-size: clamp(60px, 7.4vw, 112px);
  font-weight: 950;
  letter-spacing: -.085em;
  line-height: .91;
}
.hero h1 em { color: var(--green); font-style: normal; }
.hero-lede { max-width: 670px; color: #4d524a; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.72; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 38px; }
.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 0 20px;
  border: 1px solid var(--ink);
  font-size: 14px;
  font-weight: 900;
}
.button svg { width: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.button-primary { background: var(--ink); color: #fff; }
.button-primary:hover { border-color: var(--green); background: var(--green); }
.button-plain:hover { background: #fff; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 34px; color: var(--muted); font-size: 11px; font-weight: 850; }
.hero-facts span { position: relative; padding-left: 13px; }
.hero-facts span::before { content: ""; position: absolute; top: 6px; left: 0; width: 5px; height: 5px; background: var(--green); }

.decision-desk { min-width: 0; display: grid; grid-template-rows: auto auto auto 1fr; background: var(--ink); color: #f7f8f2; }
.desk-head { min-height: 54px; display: flex; align-items: center; justify-content: space-between; padding: 0 22px; border-bottom: 1px solid var(--line-dark); color: #aab0a6; font-size: 10px; font-weight: 900; letter-spacing: .14em; }
.desk-head > div { display: flex; align-items: center; gap: 9px; }
.desk-head i { width: 7px; height: 7px; background: var(--green-light); }
.desk-focus { padding: clamp(30px, 4vw, 56px); border-bottom: 1px solid var(--line-dark); }
.desk-kicker { color: var(--green-light); font-size: 10px; font-weight: 900; letter-spacing: .14em; }
.desk-focus strong { max-width: 500px; display: block; margin: 23px 0 22px; font-size: clamp(31px, 3.25vw, 52px); letter-spacing: -.055em; line-height: 1.05; }
.desk-focus p { max-width: 480px; color: #aeb5aa; font-size: 14px; line-height: 1.7; }
.signal-list { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line-dark); }
.signal-list > div { min-width: 0; padding: 20px; border-right: 1px solid var(--line-dark); }
.signal-list > div:last-child { border-right: 0; }
.signal-list dt { margin-bottom: 12px; color: #868e83; font-size: 10px; font-weight: 800; }
.signal-list dd { display: grid; gap: 3px; }
.signal-list b { overflow: hidden; font-size: 16px; text-overflow: ellipsis; white-space: nowrap; }
.signal-list small { color: #747c72; font-size: 10px; }
.signal-list .signal-ok { color: var(--green-light); }
.desk-route { align-self: end; display: grid; }
.desk-route li { min-height: 48px; display: flex; align-items: center; gap: 16px; padding: 0 22px; border-top: 1px solid var(--line-dark); color: #777f75; font-size: 12px; font-weight: 800; }
.desk-route li span { font-size: 10px; }
.desk-route li.active { background: var(--green-light); color: var(--ink); }

.statement-strip { min-height: 54px; display: flex; align-items: center; justify-content: center; gap: clamp(14px, 4vw, 60px); overflow: hidden; border-bottom: 1px solid var(--ink); background: var(--green-light); font-size: 11px; font-weight: 950; letter-spacing: .16em; white-space: nowrap; }
.statement-strip i { width: 4px; height: 4px; flex: 0 0 auto; background: var(--ink); transform: rotate(45deg); }

/* System map */
.system-section { padding-bottom: 118px; }
.system-map { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--ink); }
.system-column { min-width: 0; min-height: 500px; display: flex; flex-direction: column; padding: clamp(24px, 3vw, 42px); border-right: 1px solid var(--ink); background: var(--paper); }
.system-column:last-child { border-right: 0; }
.system-column > header { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 11px; font-weight: 900; }
.system-column > header b { color: var(--ink); font-size: 22px; }
.system-column h3 { max-width: 300px; margin: 70px 0 20px; font-size: clamp(26px, 2.3vw, 36px); letter-spacing: -.045em; line-height: 1.08; }
.system-place h3 { max-width: none; font-size: clamp(22px, 2.1vw, 32px); letter-spacing: -.065em; white-space: nowrap; }
.system-column > p { max-width: 330px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.system-column ul { display: grid; gap: 9px; margin: 30px 0 36px; }
.system-column li { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 750; }
.system-column li::before { content: ""; width: 12px; height: 1px; background: currentColor; }
.system-column a { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); font-size: 13px; font-weight: 900; }
.system-column a:hover { color: var(--green); }
.system-place { border-top: 6px solid var(--green); }
.system-market { border-top: 6px solid var(--blue); }
.system-property { border-top: 6px solid var(--red); }

/* Product chapters */
.chapter { padding: 128px 0; border-top: 1px solid var(--ink); }
.chapter-dark { background: var(--ink); color: #f6f7f0; }
.chapter-paper { background: var(--paper); }
.chapter-grid { display: grid; grid-template-columns: minmax(300px, .7fr) minmax(620px, 1.3fr); gap: clamp(54px, 7vw, 120px); align-items: center; }
.chapter-grid.reverse { grid-template-columns: minmax(500px, .86fr) minmax(520px, 1.14fr); }
.chapter-grid.reverse .chapter-copy { grid-column: 2; grid-row: 1; }
.chapter-grid.reverse .product-canvas { grid-column: 1; grid-row: 1; }
.chapter-grid.reverse .chapter-copy h2.market-title { font-size: clamp(42px, 4vw, 58px); }
.market-title span { display: block; white-space: nowrap; }
.chapter-copy h2 { margin-bottom: 30px; }
.chapter-dark .chapter-copy > p { color: #aab0a7; }
.chapter-dark .section-number { color: var(--green-light); }
.chapter-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 34px; }
.chapter-links a { padding: 8px 11px; border: 1px solid currentColor; font-size: 11px; font-weight: 900; }
.chapter-dark .chapter-links a { border-color: #4b5149; }
.chapter-links a:hover { border-color: var(--green); color: var(--green); }
.product-canvas { min-width: 0; border: 1px solid var(--line-dark); background: #1b1e19; }
.canvas-head { min-height: 60px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 18px; border-bottom: 1px solid var(--line-dark); }
.canvas-head > div { min-width: 0; display: grid; gap: 2px; }
.canvas-head span { font-size: 13px; font-weight: 900; }
.canvas-head small { overflow: hidden; color: #858d82; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.data-stamp { padding: 5px 7px; border: 1px solid var(--line-dark); color: var(--green-light); font-size: 9px !important; letter-spacing: .1em; white-space: nowrap; }
.place-layout { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); }
.priority-list { padding: 20px; border-right: 1px solid var(--line-dark); }
.priority-list > p { margin-bottom: 12px; color: #858d82; font-size: 10px; font-weight: 900; letter-spacing: .1em; }
.priority { display: grid; grid-template-columns: 28px 1fr; gap: 10px; padding: 15px 0; border-top: 1px solid #343831; }
.priority > span { color: #747c72; font-size: 10px; font-weight: 900; }
.priority > div { min-width: 0; display: grid; gap: 5px; }
.priority strong { font-size: 12px; line-height: 1.45; }
.priority small { color: #787f76; font-size: 10px; }
.priority.active { margin: 0 -12px; padding-inline: 12px; border-color: var(--green-light); background: var(--green-light); color: var(--ink); }
.priority.active small, .priority.active > span { color: #4b5a2c; }
.evidence-panel { padding: 20px; background: #20241e; }
.evidence-panel > header { display: flex; justify-content: space-between; color: #858d82; font-size: 9px; letter-spacing: .12em; }
.evidence-panel h3 { margin: 28px 0 17px; font-size: 22px; letter-spacing: -.04em; }
.evidence-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 0; border-top: 1px solid #3a3f37; font-size: 11px; }
.evidence-row span { color: #8a9287; }
.evidence-row strong { text-align: right; }
.evidence-panel > p { margin-top: 18px; color: #7f877d; font-size: 10px; }
.trend-line { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; padding: 15px 18px; border-top: 1px solid var(--line-dark); }
.trend-line > span { color: #81897e; font-size: 9px; font-weight: 900; letter-spacing: .12em; }
.trend-line svg { width: 100%; height: 54px; overflow: visible; }
.trend-line .grid { fill: none; stroke: #30342e; stroke-width: 1; }
.trend-line .line { fill: none; stroke: var(--green-light); stroke-width: 2; }
.trend-line circle { fill: var(--green-light); }
.trend-line b { color: var(--green-light); font-size: 18px; }

.cross-canvas { border-color: var(--ink); background: var(--canvas); color: var(--ink); }
.canvas-head.light { border-color: var(--line); }
.canvas-head.light small { color: var(--muted); }
.canvas-head.light .data-stamp { border-color: var(--line); color: var(--blue); }
.rank-board { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--ink); }
.rank-card { min-width: 0; padding: 18px; border-right: 1px solid var(--ink); background: var(--paper); }
.rank-card:last-child { border-right: 0; }
.rank-card header { display: flex; justify-content: space-between; color: var(--muted); font-size: 9px; }
.rank-card header b { font-weight: 900; }
.rank-card > strong { display: block; margin: 35px 0 8px; font-size: 40px; line-height: 1; letter-spacing: -.06em; }
.rank-card p { overflow: hidden; font-size: 11px; font-weight: 850; text-overflow: ellipsis; white-space: nowrap; }
.rank-card small { display: block; margin-top: 7px; color: var(--muted); font-size: 9px; }
.rank-card.winner { background: var(--blue); color: #fff; }
.rank-card.winner header, .rank-card.winner small { color: #cdd9ff; }
.axis-board { display: grid; grid-template-columns: 110px 1fr; gap: 20px; padding: 22px 18px; border-bottom: 1px solid var(--ink); background: var(--paper); }
.axis-labels, .axis-series { display: grid; gap: 8px; }
.axis-labels span { height: 11px; color: var(--muted); font-size: 9px; line-height: 11px; }
.axis-series span { position: relative; height: 11px; background: #e4e3dc; }
.axis-series span::before { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--score); background: var(--blue); }
.handoff-row { min-height: 50px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 18px; background: var(--green-light); font-size: 10px; font-weight: 800; }
.handoff-row b { white-space: nowrap; }

/* Property */
.property-chapter { background: #e9e5da; }
.property-grid { display: grid; grid-template-columns: minmax(300px, .72fr) minmax(620px, 1.28fr); gap: clamp(54px, 7vw, 120px); align-items: center; }
.inline-arrow { display: flex; align-items: center; justify-content: space-between; margin-top: 36px; padding: 15px 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); font-size: 13px; font-weight: 900; }
.inline-arrow:hover { color: var(--red); }
.property-ledger { border: 1px solid var(--ink); background: var(--paper); }
.property-ledger nav { min-height: 46px; display: flex; gap: 24px; align-items: center; padding: 0 18px; border-bottom: 1px solid var(--line); overflow: hidden; }
.property-ledger nav span { position: relative; flex: 0 0 auto; color: var(--muted); font-size: 11px; font-weight: 850; }
.property-ledger nav span.active { color: var(--ink); }
.property-ledger nav span.active::after { content: ""; position: absolute; right: 0; bottom: -14px; left: 0; height: 2px; background: var(--red); }
.property-ledger > header { display: flex; align-items: end; justify-content: space-between; gap: 20px; padding: 28px 24px; border-bottom: 1px solid var(--ink); }
.property-ledger > header small { color: var(--red); font-size: 9px; font-weight: 950; letter-spacing: .12em; }
.property-ledger > header h3 { margin-top: 7px; font-size: 30px; letter-spacing: -.045em; }
.property-ledger > header b { padding: 5px 8px; border: 1px solid var(--red); color: var(--red); font-size: 11px; }
.ledger-rows { padding: 0 24px; }
.ledger-rows > div { display: grid; grid-template-columns: 62px minmax(0, 1fr); gap: 5px 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.ledger-rows .risk { grid-row: span 2; align-self: start; width: max-content; padding: 3px 5px; border: 1px solid currentColor; font-size: 8px; font-weight: 950; letter-spacing: .08em; }
.risk.high { color: var(--red); }
.risk.mid { color: var(--amber); }
.risk.low { color: var(--green); }
.ledger-rows strong { font-size: 13px; }
.ledger-rows small { color: var(--muted); font-size: 11px; }
.property-ledger > footer { display: flex; flex-wrap: wrap; gap: 8px 20px; padding: 15px 24px; background: var(--ink); color: #b7bdb3; font-size: 9px; font-weight: 800; }
.property-ledger > footer span { position: relative; padding-left: 10px; }
.property-ledger > footer span::before { content: ""; position: absolute; top: 5px; left: 0; width: 4px; height: 4px; background: var(--green-light); }

/* Principles */
.principle-section { padding-bottom: 120px; }
.section-head.compact { grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); }
.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--ink); }
.principle-grid article { min-height: 255px; display: flex; flex-direction: column; padding: 24px; border-right: 1px solid var(--ink); background: var(--paper); }
.principle-grid article:last-child { border-right: 0; }
.state { width: max-content; padding: 3px 6px; border: 1px solid currentColor; font-size: 8px; font-weight: 950; letter-spacing: .1em; }
.state.live { color: var(--green); }
.state.calc { color: var(--blue); }
.state.miss { color: var(--red); }
.state.ai { color: var(--ink); }
.principle-grid h3 { margin-top: auto; font-size: 18px; letter-spacing: -.03em; }
.principle-grid p { margin-top: 10px; color: var(--muted); font-size: 12px; line-height: 1.6; }

/* Audience */
.audience-section { padding: 118px 0; border-top: 1px solid var(--ink); background: var(--green-light); }
.audience-grid { display: grid; grid-template-columns: minmax(300px, .82fr) minmax(540px, 1.18fr); gap: clamp(48px, 8vw, 140px); }
.audience-title h2 { max-width: 660px; }
.audience-list { border-top: 1px solid var(--ink); }
.audience-list article { display: grid; grid-template-columns: 44px 1fr; gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--ink); }
.audience-list > article > span { font-size: 11px; font-weight: 900; }
.audience-list h3 { font-size: 18px; letter-spacing: -.025em; }
.audience-list p { margin-top: 8px; color: #4c562d; font-size: 13px; }

/* Start */
.start-section { padding-block: 120px; }
.start-section > header { display: grid; grid-template-columns: 180px 1fr; align-items: start; margin-bottom: 48px; }
.start-section .section-number { margin-top: 8px; }
.start-grid { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); }
.start-grid article { min-height: 370px; display: flex; flex-direction: column; padding: clamp(28px, 4vw, 54px); }
.start-grid article:first-child { border-right: 1px solid var(--ink); }
.start-grid article > span { font-size: 9px; font-weight: 950; letter-spacing: .12em; }
.start-grid h3 { max-width: 500px; margin: 72px 0 16px; font-size: clamp(28px, 3vw, 44px); letter-spacing: -.05em; line-height: 1.08; }
.start-grid p { max-width: 500px; color: var(--muted); font-size: 14px; }
.start-grid a { display: flex; justify-content: space-between; margin-top: auto; padding-top: 16px; border-top: 1px solid currentColor; font-size: 13px; font-weight: 900; }
.start-demo { background: var(--paper); }
.start-live { background: var(--ink); color: #fff; }
.start-live p { color: #9da49a; }
.start-live > span { color: var(--green-light); }
.start-grid a:hover { color: var(--green); }
.start-live a:hover { color: var(--green-light); }

/* Footer */
.site-footer { border-top: 1px solid #41463e; background: var(--ink); color: #eef0e8; }
.footer-grid { display: grid; grid-template-columns: 1.5fr .7fr .8fr; gap: 54px; padding-top: 64px; padding-bottom: 58px; }
.footer-brand .brand-mark { color: #eef0e8; }
.footer-grid > div > p { max-width: 420px; margin-top: 20px; color: #858d82; font-size: 12px; }
.footer-grid nav { display: grid; align-content: start; gap: 12px; }
.footer-grid nav a { color: #a5ada1; font-size: 12px; font-weight: 750; }
.footer-grid nav a:hover { color: var(--green-light); }
.footer-base { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 30px; border-top: 1px solid #41463e; color: #71796f; font-size: 10px; }

/* Motion */
.js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .55s ease, transform .55s ease; }
.js [data-reveal].visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 1180px) {
  .section-grid { min-height: 760px; grid-template-columns: 1fr minmax(430px, .82fr); }
  .hero h1 { font-size: clamp(58px, 7vw, 84px); }
  .chapter-grid, .property-grid { grid-template-columns: minmax(280px, .7fr) minmax(540px, 1.3fr); gap: 54px; }
  .chapter-grid.reverse { grid-template-columns: minmax(460px, .9fr) minmax(470px, 1.1fr); }
  .principle-grid { grid-template-columns: 1fr 1fr; }
  .principle-grid article:nth-child(2) { border-right: 0; }
  .principle-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
}

@media (max-width: 1060px) {
  .chapter-grid.reverse { grid-template-columns: 1fr; }
  .chapter-grid.reverse .chapter-copy, .chapter-grid.reverse .product-canvas { grid-column: 1; }
  .chapter-grid.reverse .chapter-copy { grid-row: 1; }
  .chapter-grid.reverse .product-canvas { grid-row: 2; }
}

@media (max-width: 960px) {
  .desktop-nav, .header-actions > .text-link, .header-actions > .header-live { display: none; }
  .header-inner { grid-template-columns: 1fr auto; }
  .menu-toggle { display: grid; }
  .menu-open .mobile-nav { display: grid; }
  .section-grid { min-height: 0; grid-template-columns: 1fr; padding-top: 104px; }
  .hero-copy { padding: 62px 0; border-right: 0; }
  .decision-desk { min-height: 650px; }
  .system-map { grid-template-columns: 1fr; }
  .system-column { min-height: 400px; border-right: 0; border-bottom: 1px solid var(--ink); }
  .system-column:last-child { border-bottom: 0; }
  .system-column h3 { margin-top: 42px; }
  .chapter-grid, .chapter-grid.reverse, .property-grid { grid-template-columns: 1fr; }
  .chapter-grid.reverse .chapter-copy, .chapter-grid.reverse .product-canvas { grid-column: 1; }
  .chapter-grid.reverse .chapter-copy { grid-row: 1; }
  .chapter-grid.reverse .product-canvas { grid-row: 2; }
  .market-title span { white-space: normal; }
  .chapter-copy { max-width: 720px; }
  .audience-grid { grid-template-columns: 1fr; }
  .start-section > header { grid-template-columns: 1fr; gap: 18px; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}

@media (max-width: 720px) {
  :root { --gutter: 16px; }
  html { scroll-padding-top: 66px; }
  .header-inner { min-height: 64px; }
  .brand-mark { width: 31px; height: 31px; }
  .brand-name { font-size: 17px; }
  .section-grid { padding-top: 84px; padding-bottom: 16px; }
  .hero-copy { padding: 46px 0 42px; }
  .hero h1 { margin-block: 24px 28px; font-size: clamp(50px, 16vw, 72px); }
  .hero-lede { font-size: 16px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; justify-content: space-between; }
  .hero-facts { display: grid; }
  .decision-desk { min-height: 580px; }
  .desk-focus { padding: 28px 22px; }
  .desk-focus strong { font-size: 32px; }
  .signal-list > div { padding: 14px 10px; }
  .signal-list b { font-size: 13px; }
  .statement-strip { justify-content: flex-start; padding-inline: 20px; }
  .section-head { grid-template-columns: 1fr; gap: 24px; padding-top: 80px; }
  .section-head .section-number { grid-column: 1; }
  .section-head h2, .chapter-copy h2, .property-grid h2, .audience-title h2, .start-section h2 { font-size: 44px; }
  .system-section { padding-bottom: 82px; }
  .system-column { min-height: 380px; padding: 24px; }
  .chapter { padding: 82px 0; }
  .chapter-grid, .property-grid { gap: 42px; }
  .place-layout { grid-template-columns: 1fr; }
  .priority-list { border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .trend-line { grid-template-columns: 1fr auto; }
  .trend-line svg { grid-column: 1 / -1; grid-row: 2; }
  .rank-board { grid-template-columns: 1fr; }
  .rank-card { border-right: 0; border-bottom: 1px solid var(--ink); }
  .rank-card:last-child { border-bottom: 0; }
  .rank-card > strong { margin-top: 22px; }
  .handoff-row { align-items: flex-start; flex-direction: column; padding-block: 14px; }
  .property-ledger nav { flex-wrap: wrap; gap: 10px 20px; padding-block: 12px; overflow: visible; }
  .property-ledger nav span.active::after { bottom: -5px; }
  .ledger-rows { padding-inline: 16px; }
  .ledger-rows > div { grid-template-columns: 54px minmax(0, 1fr); gap: 5px 10px; }
  .principle-section { padding-bottom: 82px; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--ink); }
  .principle-grid article:last-child { border-bottom: 0; }
  .audience-section { padding: 82px 0; }
  .start-section { padding-block: 82px; }
  .start-grid { grid-template-columns: 1fr; }
  .start-grid article { min-height: 330px; }
  .start-grid article:first-child { border-right: 0; border-bottom: 1px solid var(--ink); }
  .start-grid h3 { margin-top: 50px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div { grid-column: 1 / -1; }
  .footer-base { align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 18px; }
}

@media (max-width: 460px) {
  .hero h1 { font-size: 48px; }
  .signal-list { grid-template-columns: 1fr; }
  .signal-list > div { display: flex; align-items: center; justify-content: space-between; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .signal-list > div:last-child { border-bottom: 0; }
  .signal-list dt { margin: 0; }
  .signal-list dd { text-align: right; }
  .decision-desk { min-height: 690px; }
  .canvas-head { align-items: flex-start; flex-direction: column; padding-block: 14px; }
  .data-stamp { align-self: flex-start; }
  .axis-board { grid-template-columns: 76px 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
}