:root {
  color-scheme: dark;
  --ink: #eaf7f3;
  --muted: #9bb3ae;
  --dim: #6d8581;
  --void: #050d0f;
  --panel: #091619;
  --panel-2: #0c1d20;
  --line: rgba(168, 218, 205, .17);
  --line-strong: rgba(168, 218, 205, .35);
  --mint: #7cf5c8;
  --cyan: #71ddea;
  --amber: #f4c96b;
  --danger: #ff9d7a;
  --max: 1180px;
  --pad: clamp(20px, 4vw, 56px);
  --display: "Arial Narrow", "Noto Sans KR", "Malgun Gothic", sans-serif;
  --body: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  background: var(--void);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 7%, rgba(44, 148, 126, .14), transparent 28rem),
    radial-gradient(circle at 90% 25%, rgba(35, 130, 153, .09), transparent 33rem),
    var(--void);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.72;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(140, 214, 196, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 214, 196, .028) 1px, transparent 1px);
  background-size: 42px 42px;
  content: "";
  pointer-events: none;
}

a { color: inherit; text-decoration-color: rgba(124, 245, 200, .45); text-underline-offset: .22em; }
a:hover { color: var(--mint); text-decoration-color: currentColor; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
}

::selection { background: var(--mint); color: #03100d; }

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  background: var(--amber);
  color: #08110f;
  font-weight: 800;
  transform: translateY(-150%);
}
.skip-link:focus { transform: none; }

.topline {
  display: flex;
  justify-content: space-between;
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding: 8px 0 7px;
  border-bottom: 1px solid var(--line);
  color: var(--dim);
  font: 700 10px/1.2 var(--display);
  letter-spacing: .18em;
}

.site-header {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 32px), var(--max));
  min-height: 86px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--ink);
  text-decoration: none;
}
.brand:hover { color: var(--ink); }
.brand > span:last-child { display: grid; line-height: 1.15; }
.brand b { font-size: 19px; letter-spacing: -.04em; }
.brand small { margin-top: 4px; color: var(--muted); font-size: 10px; letter-spacing: .12em; }

.brand-mark {
  position: relative;
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  width: 31px;
  height: 31px;
  padding: 6px;
  border: 1px solid var(--line-strong);
  background: rgba(10, 31, 31, .76);
}
.brand-mark::after {
  position: absolute;
  right: -3px;
  top: -3px;
  width: 6px;
  height: 6px;
  background: var(--mint);
  box-shadow: 0 0 12px var(--mint);
  content: "";
}
.brand-mark i { display: block; width: 4px; background: var(--mint); }
.brand-mark i:nth-child(1) { height: 7px; opacity: .55; }
.brand-mark i:nth-child(2) { height: 17px; }
.brand-mark i:nth-child(3) { height: 11px; opacity: .75; }

.primary-nav { display: flex; align-items: center; gap: clamp(18px, 3vw, 38px); }
.primary-nav a {
  position: relative;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: -10px;
  left: 0;
  height: 2px;
  background: var(--mint);
  content: "";
  opacity: 0;
  transform: scaleX(.25);
  transition: .2s ease;
}
.primary-nav a:hover,
.primary-nav a[aria-current="page"] { color: var(--ink); }
.primary-nav a:hover::after,
.primary-nav a[aria-current="page"]::after { opacity: 1; transform: scaleX(1); }
.menu-toggle { display: none; }

main { min-height: 65vh; }
.section-frame,
.breadcrumbs,
.page-intro,
.signal-hero {
  width: min(calc(100% - 32px), var(--max));
  margin-right: auto;
  margin-left: auto;
}
.section-frame { margin-top: clamp(76px, 10vw, 142px); }

.eyebrow {
  margin: 0 0 10px;
  color: var(--mint);
  font: 800 11px/1.4 var(--display);
  letter-spacing: .18em;
  text-transform: uppercase;
}

.section-heading { margin-bottom: clamp(28px, 4vw, 48px); }
.section-heading h2 {
  max-width: 780px;
  margin: 0;
  font: 750 clamp(28px, 4.2vw, 52px)/1.14 var(--display);
  letter-spacing: -.045em;
}
.section-heading > p:last-child { max-width: 680px; margin: 15px 0 0; color: var(--muted); }
.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, .65fr);
  align-items: end;
  gap: 42px;
}
.split-heading > p { margin: 0 0 3px; color: var(--muted); }

.hero {
  position: relative;
  width: min(calc(100% - 32px), 1360px);
  min-height: min(760px, calc(100vh - 120px));
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #071113;
}
.hero::before,
.hero::after {
  position: absolute;
  z-index: 4;
  content: "";
  pointer-events: none;
}
.hero::before {
  inset: 14px;
  border: 1px solid rgba(161, 230, 211, .12);
}
.hero::after {
  top: 14px;
  right: 14px;
  width: 66px;
  height: 1px;
  background: var(--mint);
  box-shadow: 0 0 15px var(--mint);
}
.hero-media { position: absolute; inset: 0; }
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: .88;
  filter: saturate(.88) contrast(1.06);
}
.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(3, 11, 12, .2) 0%, rgba(3, 11, 12, .34) 38%, rgba(3, 11, 12, .95) 70%, rgba(3, 11, 12, .98) 100%),
    linear-gradient(0deg, rgba(3, 10, 11, .9), transparent 42%);
}
.hero-copy {
  position: relative;
  z-index: 5;
  width: min(51%, 650px);
  margin-left: auto;
  padding: clamp(100px, 13vw, 174px) clamp(28px, 6vw, 84px) 154px 28px;
}
.hero-copy h1 {
  margin: 0;
  font: 760 clamp(42px, 5.7vw, 78px)/1.08 var(--display);
  letter-spacing: -.065em;
}
.hero-copy h1 em { color: var(--mint); font-style: normal; }
.hero-lead { max-width: 620px; margin: 27px 0 0; color: #c5d8d3; font-size: clamp(16px, 1.6vw, 19px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 36px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 21px;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}
.button-primary { border-color: var(--mint); background: var(--mint); color: #03110e; }
.button-primary:hover { background: #a0ffdd; color: #03110e; }
.button-quiet { background: rgba(3, 14, 15, .6); backdrop-filter: blur(8px); }
.hero-readout {
  position: absolute;
  z-index: 6;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(650px, 51%);
  border-top: 1px solid var(--line-strong);
  background: rgba(4, 15, 16, .88);
  backdrop-filter: blur(8px);
}
.hero-readout span { padding: 18px 22px; border-left: 1px solid var(--line); color: var(--muted); font: 700 11px/1.35 var(--display); letter-spacing: .06em; }
.hero-readout b { display: block; margin-bottom: 3px; color: var(--ink); font-size: 24px; }

.question-strip { display: grid; grid-template-columns: repeat(3, 1fr); padding: 0; margin: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.question-strip li { display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 28px 26px 22px 0; border-bottom: 1px solid var(--line); }
.question-strip li + li { padding-left: 26px; border-left: 1px solid var(--line); }
.question-strip span { color: var(--mint); font: 800 12px var(--display); letter-spacing: .1em; }
.question-strip h3 { margin: 0 0 8px; font-size: 18px; }
.question-strip p { margin: 0; color: var(--muted); font-size: 14px; }

.signal-rail { border-top: 1px solid var(--line-strong); }
.signal-row {
  display: grid;
  grid-template-columns: 118px 1fr 210px;
  align-items: center;
  min-height: 158px;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease;
}
.signal-row:hover { background: rgba(124, 245, 200, .035); }
.signal-code { display: flex; align-items: center; gap: 17px; align-self: stretch; padding: 26px 0; border-right: 1px solid var(--line); }
.signal-code span { color: var(--dim); font: 700 10px var(--display); }
.signal-code b { color: var(--mint); font: 800 18px var(--display); letter-spacing: .08em; writing-mode: vertical-rl; transform: rotate(180deg); }
.signal-copy { padding: 25px clamp(24px, 4vw, 54px); }
.signal-copy h3 { margin: 0; font: 750 clamp(25px, 3vw, 38px)/1.15 var(--display); letter-spacing: -.04em; }
.signal-copy h3 a { text-decoration: none; }
.signal-copy > p:last-child { max-width: 630px; margin: 9px 0 0; color: var(--muted); }
.signal-meta { display: grid; gap: 18px; justify-items: end; padding: 22px 0 22px 24px; text-align: right; }
.signal-meta > span { color: var(--dim); font-size: 12px; }
.signal-meta a { color: var(--mint); font-size: 13px; font-weight: 800; text-decoration: none; }

.watchboard {
  position: relative;
  padding: clamp(26px, 4vw, 50px);
  border: 1px solid rgba(124, 245, 200, .35);
  background:
    linear-gradient(110deg, rgba(17, 58, 52, .56), rgba(7, 23, 25, .75)),
    var(--panel);
}
.watchboard::before {
  position: absolute;
  top: -1px;
  left: -1px;
  width: 90px;
  height: 4px;
  background: var(--mint);
  box-shadow: 0 0 18px rgba(124, 245, 200, .6);
  content: "";
}
.watchboard .section-heading { display: grid; grid-template-columns: 1fr minmax(260px, .8fr); column-gap: 42px; margin-bottom: 26px; }
.watchboard .section-heading .eyebrow { grid-column: 1 / -1; }
.watchboard .section-heading h2 { font-size: clamp(27px, 3vw, 42px); }
.watchboard .section-heading > p:last-child { margin: 0; }
.watchboard-panel { border-top: 1px solid var(--line-strong); }
.watchboard-empty { margin: 0; padding: 28px 0; color: var(--muted); }
.watchboard-list { display: grid; grid-template-columns: repeat(2, 1fr); padding: 0; margin: 0; list-style: none; }
.watchboard-list li { display: grid; grid-template-columns: 1fr auto; gap: 10px 18px; padding: 22px 20px 22px 0; border-bottom: 1px solid var(--line); }
.watchboard-list li:nth-child(even) { padding-left: 20px; border-left: 1px solid var(--line); }
.watchboard-list a { font-weight: 800; text-decoration: none; }
.watchboard-list small { grid-column: 1; color: var(--muted); }
.watchboard-list button { grid-column: 2; grid-row: 1 / 3; align-self: center; border: 0; background: none; color: var(--danger); cursor: pointer; font-size: 13px; }
.watchboard-actions { display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; font-size: 13px; font-weight: 800; }
.text-button { padding: 0; border: 0; background: none; color: var(--muted); cursor: pointer; text-decoration: underline; text-underline-offset: 4px; }
.storage-note { margin: 19px 0 0; color: var(--dim); font-size: 12px; }
.noscript-note { padding: 12px; border: 1px solid var(--amber); color: var(--amber); font-size: 13px; }

.decision-lines { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-strong); }
.decision-lines article { padding: 28px 24px 8px 0; }
.decision-lines article + article { padding-left: 25px; border-left: 1px solid var(--line); }
.decision-lines p { margin: 0; color: var(--muted); font-size: 13px; }
.decision-lines h3 { margin: 6px 0 19px; font: 750 29px var(--display); letter-spacing: -.04em; }
.decision-lines article > div { display: flex; align-items: center; gap: 10px; color: var(--mint); font-weight: 800; }
.decision-lines article > div a { text-decoration: none; }
.decision-lines small { display: block; margin-top: 17px; color: var(--dim); line-height: 1.55; }

.integrity-note {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}
.integrity-pulse { width: 12px; height: 12px; border: 2px solid var(--mint); border-radius: 50%; box-shadow: 0 0 18px var(--mint); }
.integrity-note h2 { margin: 0 0 4px; font-size: 18px; }
.integrity-note p { margin: 0; color: var(--muted); font-size: 13px; }
.integrity-note > a { font-size: 13px; font-weight: 800; }

.breadcrumbs { margin-top: 28px; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; color: var(--dim); font-size: 12px; list-style: none; }
.breadcrumbs li + li::before { margin-right: 8px; color: #48605b; content: "/"; }
.breadcrumbs a { color: var(--muted); }

.page-intro {
  position: relative;
  padding: clamp(72px, 11vw, 140px) 0 clamp(54px, 8vw, 96px);
  border-bottom: 1px solid var(--line-strong);
}
.page-intro::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  width: 34%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--mint));
  content: "";
}
.page-intro h1,
.signal-hero h1,
.not-found h1 {
  margin: 0;
  font: 760 clamp(44px, 7vw, 86px)/1.04 var(--display);
  letter-spacing: -.065em;
}
.page-intro > p:last-child { max-width: 730px; margin: 27px 0 0; color: var(--muted); font-size: clamp(16px, 1.8vw, 20px); }

.directory-block { margin-top: 72px; border-top: 1px solid var(--line-strong); }
.directory-block > header { display: grid; grid-template-columns: 100px minmax(0, 1fr) auto; gap: 28px; align-items: center; padding: 26px 0; }
.directory-code { color: var(--mint); font: 800 23px var(--display); letter-spacing: .08em; }
.directory-block header p { margin: 0; color: var(--muted); font-size: 13px; }
.directory-block header h3 { margin: 3px 0; font: 750 32px var(--display); }
.directory-block header h3 a { text-decoration: none; }
.detail-link { color: var(--mint); font-size: 13px; font-weight: 800; text-decoration: none; }
.compact-sources { padding: 0; margin: 0; list-style: none; }
.compact-sources > li {
  display: grid;
  grid-template-columns: minmax(170px, .65fr) minmax(260px, 1.2fr) auto;
  gap: 25px;
  align-items: center;
  padding: 18px 0 18px 100px;
  border-top: 1px solid var(--line);
}
.compact-sources li > div:first-child { display: grid; }
.compact-sources b { font-size: 15px; }
.compact-sources li > div:first-child span { color: var(--dim); font-size: 11px; }
.compact-sources li > p { margin: 0; color: var(--muted); font-size: 13px; }
.compact-actions { display: flex; align-items: center; gap: 12px; }
.compact-actions > a { color: var(--mint); font-size: 12px; font-weight: 800; text-decoration: none; white-space: nowrap; }

.watch-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  padding: 7px 12px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}
.watch-toggle:hover { border-color: var(--mint); }
.watch-toggle-mark { position: relative; width: 13px; height: 13px; border: 1px solid var(--muted); }
.watch-toggle[aria-pressed="true"] { border-color: var(--mint); background: rgba(124, 245, 200, .1); color: var(--mint); }
.watch-toggle[aria-pressed="true"] .watch-toggle-mark { border-color: var(--mint); background: var(--mint); }
.watch-toggle[aria-pressed="true"] .watch-toggle-mark::after { position: absolute; left: 3px; top: 0; width: 4px; height: 8px; border: solid #06130f; border-width: 0 2px 2px 0; content: ""; transform: rotate(45deg); }

.signal-hero {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(30px, 7vw, 100px);
  align-items: center;
  padding: clamp(70px, 10vw, 130px) 0 clamp(60px, 9vw, 108px);
  border-bottom: 1px solid var(--line-strong);
}
.signal-hero-code { display: grid; place-items: center; aspect-ratio: 1; border: 1px solid var(--line-strong); background: radial-gradient(circle, rgba(124,245,200,.12), transparent 65%); }
.signal-hero-code span { color: var(--mint); font: 800 34px var(--display); letter-spacing: .1em; }
.signal-hero-code i { position: absolute; width: 154px; height: 154px; border: 1px dashed rgba(124,245,200,.2); border-radius: 50%; }
.signal-hero > div:last-child > p:last-child { max-width: 740px; margin: 24px 0 0; color: var(--muted); font-size: 18px; }

.first-check { display: grid; grid-template-columns: minmax(230px, .65fr) 1.35fr; gap: 70px; }
.first-check .section-heading { margin: 0; }
.first-check .section-heading h2 { font-size: 35px; }
.first-check ol { padding: 0; margin: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.first-check li { display: grid; grid-template-columns: 50px 1fr; gap: 15px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.first-check li span { color: var(--mint); font: 800 11px var(--display); }
.first-check li p { margin: 0; font-weight: 700; }

.source-stack { display: grid; gap: 26px; }
.source-card { border: 1px solid var(--line); background: linear-gradient(120deg, rgba(15, 37, 39, .75), rgba(7, 18, 20, .76)); }
.source-card-head { display: grid; grid-template-columns: 90px 1fr; align-items: center; min-height: 100px; border-bottom: 1px solid var(--line); }
.source-index { display: grid; place-items: center; align-self: stretch; border-right: 1px solid var(--line); color: var(--mint); font: 800 13px var(--display); }
.source-card-head > div { padding: 17px 24px; }
.source-owner { margin: 0; color: var(--dim); font-size: 11px; }
.source-card h3 { margin: 1px 0 0; font: 750 27px var(--display); }
.source-grid { display: grid; grid-template-columns: repeat(2, 1fr); margin: 0; }
.source-grid > div { min-height: 148px; padding: 25px 28px; border-bottom: 1px solid var(--line); }
.source-grid > div:nth-child(odd) { border-right: 1px solid var(--line); }
.source-grid dt { margin-bottom: 10px; color: var(--mint); font: 800 11px var(--display); letter-spacing: .1em; }
.source-grid dd { margin: 0; color: #bed0cc; font-size: 14px; }
.source-grid .source-caution { background: rgba(244, 201, 107, .035); }
.source-grid .source-caution dt { color: var(--amber); }
.source-card-actions { display: flex; justify-content: space-between; gap: 15px; align-items: center; padding: 18px 28px; }
.official-link { color: var(--mint); font-size: 14px; font-weight: 800; text-decoration: none; }

.next-signals { padding-top: 34px; border-top: 1px solid var(--line-strong); }
.next-signals h2 { margin: 0 0 24px; font: 750 32px var(--display); }
.next-signals > div { display: flex; flex-wrap: wrap; gap: 9px; }
.next-signals a { display: inline-flex; gap: 10px; padding: 11px 14px; border: 1px solid var(--line); color: var(--muted); font-size: 13px; font-weight: 800; text-decoration: none; }
.next-signals a:hover { border-color: var(--mint); color: var(--ink); }
.next-signals a span { color: var(--mint); font: 800 10px var(--display); }

.protocol ol { padding: 0; margin: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.protocol li { display: grid; grid-template-columns: 90px 1fr minmax(160px, .4fr); gap: 30px; align-items: center; min-height: 160px; border-bottom: 1px solid var(--line); }
.protocol li > span { color: var(--mint); font: 800 13px var(--display); }
.protocol li h3 { margin: 2px 0 8px; font: 750 27px var(--display); }
.protocol li div > p:last-child { max-width: 650px; margin: 0; color: var(--muted); font-size: 14px; }
.protocol li > strong { justify-self: end; color: var(--dim); font-size: 13px; }

.table-scroll { overflow-x: auto; border: 1px solid var(--line); }
table { width: 100%; min-width: 740px; border-collapse: collapse; text-align: left; }
th, td { padding: 18px 20px; border-bottom: 1px solid var(--line); }
thead th { background: rgba(124,245,200,.08); color: var(--mint); font: 800 11px var(--display); letter-spacing: .08em; }
tbody th { width: 19%; color: var(--ink); font-size: 14px; }
tbody td { color: var(--muted); font-size: 14px; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
.callout { padding: clamp(30px, 5vw, 64px); border: 1px solid var(--line-strong); background: var(--panel); }
.callout h2 { margin: 0; font: 750 36px var(--display); }
.callout > p:not(.eyebrow) { max-width: 680px; color: var(--muted); }

.method-grid ol { display: grid; grid-template-columns: repeat(2, 1fr); padding: 0; margin: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.method-grid li { display: grid; grid-template-columns: 48px 1fr; padding: 30px 28px 28px 0; border-bottom: 1px solid var(--line); }
.method-grid li:nth-child(even) { padding-left: 28px; border-left: 1px solid var(--line); }
.method-grid li span { grid-row: 1 / 3; color: var(--mint); font: 800 16px var(--display); }
.method-grid h3 { margin: 0 0 8px; font-size: 18px; }
.method-grid li p { margin: 0; color: var(--muted); font-size: 14px; }
.ledger ol { display: grid; grid-template-columns: repeat(4, 1fr); padding: 0; margin: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.ledger li { padding: 27px 23px 0 0; }
.ledger li + li { padding-left: 23px; border-left: 1px solid var(--line); }
.ledger li > span { display: inline-grid; place-items: center; width: 28px; height: 28px; margin-bottom: 17px; border: 1px solid var(--mint); color: var(--mint); font: 800 11px var(--display); }
.ledger h3 { margin: 0 0 8px; font-size: 16px; }
.ledger li p { margin: 0; color: var(--muted); font-size: 13px; }
.boundaries ul { display: grid; grid-template-columns: repeat(2, 1fr); padding: 0; margin: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.boundaries li { display: grid; gap: 7px; padding: 24px 25px 24px 0; border-bottom: 1px solid var(--line); }
.boundaries li:nth-child(even) { padding-left: 25px; border-left: 1px solid var(--line); }
.boundaries b { color: var(--amber); font-size: 14px; }
.boundaries span { color: var(--muted); font-size: 14px; }
.change-log ol { padding: 0; margin: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.change-log li { display: grid; grid-template-columns: 150px 1fr; gap: 30px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.change-log time { color: var(--mint); font: 800 12px var(--display); }
.change-log b { font-size: 16px; }
.change-log p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

.manifesto { display: grid; grid-template-columns: .45fr 1.55fr; gap: clamp(40px, 8vw, 110px); padding-top: 40px; border-top: 1px solid var(--line-strong); }
.manifesto-number { color: rgba(124,245,200,.17); font: 800 clamp(90px, 14vw, 190px)/.8 var(--display); }
.manifesto h2 { margin: 0; font: 750 clamp(30px, 4vw, 52px)/1.15 var(--display); letter-spacing: -.045em; }
.manifesto > div:last-child > p:last-child { max-width: 690px; color: var(--muted); font-size: 17px; }
.about-links { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-strong); }
.about-links .section-heading { grid-column: 1 / -1; margin-top: 34px; }
.about-links > a { display: grid; grid-template-columns: 36px 1fr; gap: 10px; padding: 26px 24px 25px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.about-links > a + a { padding-left: 24px; border-left: 1px solid var(--line); }
.about-links > a > span { color: var(--mint); font: 800 11px var(--display); }
.about-links b { font-size: 16px; }
.about-links p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }

.privacy-map dl { display: grid; grid-template-columns: repeat(2, 1fr); margin: 0; border-top: 1px solid var(--line-strong); }
.privacy-map dl > div { padding: 23px 24px 23px 0; border-bottom: 1px solid var(--line); }
.privacy-map dl > div:nth-child(even) { padding-left: 24px; border-left: 1px solid var(--line); }
.privacy-map dt { margin-bottom: 7px; color: var(--mint); font: 800 11px var(--display); letter-spacing: .08em; }
.privacy-map dd { margin: 0; color: var(--muted); }
.privacy-map dd strong { color: var(--ink); }
code { padding: 3px 6px; background: rgba(124,245,200,.08); color: var(--mint); font-size: .86em; }
.privacy-details { border-top: 1px solid var(--line-strong); }
.privacy-details article { display: grid; grid-template-columns: 80px 1fr; gap: 24px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.privacy-details article > span { color: var(--mint); font: 800 12px var(--display); }
.privacy-details h2 { margin: 0 0 8px; font-size: 20px; }
.privacy-details p { max-width: 780px; margin: 0; color: var(--muted); }
.policy-date { padding-top: 18px; border-top: 1px solid var(--line-strong); color: var(--dim); font-size: 12px; }

.not-found { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(30px, 7vw, 90px); align-items: center; min-height: 560px; margin-top: 25px; }
.error-code { margin: 0; color: rgba(124,245,200,.16); font: 800 clamp(120px, 22vw, 290px)/.8 var(--display); letter-spacing: -.08em; }
.not-found > div > p:not(.eyebrow) { max-width: 620px; color: var(--muted); }
.recovery-links { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-strong); }
.recovery-links a { display: grid; gap: 8px; padding: 25px 24px 25px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.recovery-links a + a { padding-left: 24px; border-left: 1px solid var(--line); }
.recovery-links span { color: var(--muted); font-size: 13px; }

.site-footer {
  width: min(calc(100% - 32px), var(--max));
  margin: clamp(100px, 14vw, 190px) auto 0;
  padding: 50px 0 24px;
  border-top: 1px solid var(--line-strong);
}
.footer-brand { display: flex; gap: 17px; align-items: center; }
.footer-brand b { font-size: 17px; }
.footer-brand p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 12px 26px; margin-top: 34px; }
.site-footer nav a { color: var(--muted); font-size: 13px; font-weight: 700; }
.footer-note { max-width: 780px; margin: 30px 0 0; color: var(--dim); font-size: 12px; }
.footer-base { display: flex; justify-content: space-between; margin-top: 46px; padding-top: 18px; border-top: 1px solid var(--line); color: #536965; font: 700 10px var(--display); letter-spacing: .1em; }

@media (max-width: 900px) {
  .hero { min-height: 690px; }
  .hero-media img { object-position: 40% center; }
  .hero-shade { background: linear-gradient(0deg, rgba(3,11,12,.98) 0%, rgba(3,11,12,.88) 54%, rgba(3,11,12,.2) 100%); }
  .hero-copy { width: 100%; margin: 0; padding: 330px var(--pad) 140px; }
  .hero-readout { width: 100%; }
  .question-strip, .decision-lines { grid-template-columns: 1fr; }
  .question-strip li + li, .decision-lines article + article { padding-left: 0; border-left: 0; }
  .signal-row { grid-template-columns: 84px 1fr; }
  .signal-meta { grid-column: 2; justify-items: start; padding: 0 24px 24px; text-align: left; }
  .split-heading { grid-template-columns: 1fr; gap: 15px; }
  .compact-sources > li { grid-template-columns: 1fr 1.2fr; padding-left: 0; }
  .compact-actions { grid-column: 1 / -1; }
  .signal-hero { grid-template-columns: 150px 1fr; }
  .first-check { grid-template-columns: 1fr; gap: 25px; }
  .ledger ol { grid-template-columns: repeat(2, 1fr); }
  .protocol li { grid-template-columns: 54px 1fr; }
  .protocol li > strong { grid-column: 2; justify-self: start; margin-top: -20px; }
}

@media (max-width: 720px) {
  .topline { width: calc(100% - 28px); }
  .topline span:first-child { overflow: hidden; max-width: 62%; white-space: nowrap; }
  .site-header { width: calc(100% - 28px); min-height: 74px; }
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 8px 0 8px 12px;
    border: 0;
    background: none;
    color: var(--ink);
    cursor: pointer;
    font-size: 13px;
    font-weight: 800;
  }
  .menu-toggle i, .menu-toggle i::before, .menu-toggle i::after { display: block; width: 18px; height: 1px; background: var(--mint); content: ""; transition: .2s ease; }
  .menu-toggle i { position: relative; }
  .menu-toggle i::before { position: absolute; top: -6px; }
  .menu-toggle i::after { position: absolute; top: 6px; }
  .menu-toggle[aria-expanded="true"] i { background: transparent; }
  .menu-toggle[aria-expanded="true"] i::before { top: 0; transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] i::after { top: 0; transform: rotate(-45deg); }
  .primary-nav {
    position: absolute;
    top: 69px;
    right: 0;
    left: 0;
    display: none;
    padding: 12px;
    border: 1px solid var(--line-strong);
    background: rgba(5, 16, 18, .98);
    box-shadow: 0 18px 50px rgba(0,0,0,.45);
  }
  .primary-nav.is-open { display: grid; }
  .primary-nav a { padding: 12px; }
  .primary-nav a::after { display: none; }
  .section-frame, .breadcrumbs, .page-intro, .signal-hero { width: calc(100% - 28px); }
  .section-frame { margin-top: 78px; }
  .hero { width: calc(100% - 16px); min-height: 650px; }
  .hero-copy { padding: 280px 24px 140px; }
  .hero-copy h1 { font-size: clamp(39px, 12vw, 58px); }
  .hero-readout span { padding: 14px 12px; }
  .hero-readout b { font-size: 20px; }
  .question-strip li { grid-template-columns: 38px 1fr; padding-right: 0; }
  .signal-row { grid-template-columns: 58px 1fr; min-height: 138px; }
  .signal-code { gap: 9px; }
  .signal-code b { font-size: 13px; }
  .signal-copy { padding: 22px 18px; }
  .signal-meta { padding-left: 18px; }
  .watchboard { width: calc(100% - 14px); padding: 27px 20px; }
  .watchboard .section-heading { grid-template-columns: 1fr; }
  .watchboard .section-heading > p:last-child { margin-top: 12px; }
  .watchboard-list { grid-template-columns: 1fr; }
  .watchboard-list li, .watchboard-list li:nth-child(even) { padding: 18px 0; border-left: 0; }
  .integrity-note { grid-template-columns: auto 1fr; }
  .integrity-note > a { grid-column: 2; }
  .page-intro { padding-top: 76px; }
  .page-intro h1, .signal-hero h1, .not-found h1 { font-size: clamp(41px, 13vw, 65px); }
  .directory-block > header { grid-template-columns: 58px 1fr; gap: 14px; }
  .directory-block .detail-link { grid-column: 2; }
  .compact-sources > li { grid-template-columns: 1fr; gap: 10px; }
  .compact-actions { grid-column: auto; justify-content: space-between; }
  .signal-hero { grid-template-columns: 1fr; }
  .signal-hero-code { width: 112px; }
  .signal-hero-code i { width: 84px; height: 84px; }
  .source-card-head { grid-template-columns: 58px 1fr; }
  .source-grid { grid-template-columns: 1fr; }
  .source-grid > div:nth-child(odd) { border-right: 0; }
  .source-grid > div { min-height: auto; }
  .source-card-actions { align-items: stretch; flex-direction: column; }
  .watch-toggle { white-space: normal; }
  .protocol li { grid-template-columns: 42px 1fr; gap: 13px; padding: 23px 0; }
  .method-grid ol, .boundaries ul, .privacy-map dl, .about-links, .recovery-links { grid-template-columns: 1fr; }
  .method-grid li:nth-child(even), .boundaries li:nth-child(even), .privacy-map dl > div:nth-child(even), .about-links > a + a, .recovery-links a + a { padding-left: 0; border-left: 0; }
  .ledger ol { grid-template-columns: 1fr; }
  .ledger li + li { padding-left: 0; border-left: 0; }
  .manifesto { grid-template-columns: 1fr; gap: 28px; }
  .manifesto-number { font-size: 90px; }
  .privacy-details article { grid-template-columns: 45px 1fr; gap: 12px; }
  .not-found { grid-template-columns: 1fr; min-height: auto; }
  .error-code { font-size: 130px; }
  .footer-base { display: grid; gap: 8px; }
}

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

@media print {
  body { background: #fff; color: #111; }
  body::before, .topline, .site-header, .hero-media, .hero-shade, .hero-actions, .watch-toggle, .watchboard-actions, .site-footer { display: none !important; }
  .hero, .section-frame, .page-intro, .signal-hero { width: 100%; min-height: auto; margin: 25px 0; border-color: #bbb; }
  .hero-copy { width: 100%; padding: 30px; }
  .hero-readout { position: static; width: 100%; }
  * { color: #111 !important; background: transparent !important; box-shadow: none !important; }
}