:root {
  color-scheme: light;
  --paper: #f4f0e7;
  --paper-deep: #eae3d6;
  --ink: #191816;
  --muted: #716e68;
  --line: rgba(25, 24, 22, 0.18);
  --indigo: #3d3c70;
  --indigo-soft: #deddeb;
  --serif: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", serif;
  --sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 80% 5%, rgba(61, 60, 112, 0.08), transparent 30rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--indigo);
  outline-offset: 4px;
}

.reading-progress {
  position: fixed;
  inset: 0 0 auto;
  height: 3px;
  z-index: 50;
  background: rgba(25, 24, 22, 0.06);
}

.reading-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--indigo);
  transform-origin: left center;
  transition: width 100ms linear;
}

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 40px, 1240px);
  margin: 0 auto;
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.site-header {
  height: 74px;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  text-decoration: none;
  font-weight: 700;
}

.wordmark span { color: var(--muted); }

.share-button {
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
  letter-spacing: 0.1em;
  padding: 10px 15px;
  transition: background 180ms ease, color 180ms ease;
}

.share-button:hover {
  background: var(--ink);
  color: var(--paper);
}

main { overflow: clip; }

.hero {
  position: relative;
  width: min(100% - 40px, 1120px);
  margin: 0 auto;
  padding: clamp(72px, 11vw, 148px) 0 clamp(78px, 10vw, 128px);
  border-bottom: 1px solid var(--line);
}

.eyebrow,
.meta,
.section-label {
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow { margin: 0 0 30px; color: var(--indigo); }

.hero h1 {
  position: relative;
  z-index: 2;
  margin: 0;
  max-width: 9em;
  font-size: clamp(58px, 10.6vw, 142px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.93;
}

.dek {
  margin: 38px 0 0;
  max-width: 19em;
  font-size: clamp(19px, 2.2vw, 28px);
  letter-spacing: 0.05em;
  line-height: 1.65;
}

.meta {
  display: flex;
  gap: 24px;
  margin-top: 56px;
  color: var(--muted);
}

.hero-orbit {
  position: absolute;
  top: 12%;
  right: -3%;
  width: min(34vw, 390px);
  aspect-ratio: 1;
  border: 1px solid rgba(61, 60, 112, 0.25);
  border-radius: 50%;
}

.hero-orbit::before,
.hero-orbit::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(61, 60, 112, 0.16);
  border-radius: 50%;
}

.hero-orbit::before { inset: 16%; }
.hero-orbit::after { inset: 36%; }

.hero-orbit span {
  position: absolute;
  top: 49%;
  left: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--indigo);
  box-shadow: calc(min(34vw, 390px) - 1px) 0 0 var(--indigo);
}

.hero-orbit i {
  position: absolute;
  inset: 49% -8% auto;
  height: 1px;
  background: rgba(61, 60, 112, 0.3);
  transform: rotate(-18deg);
}

.article-grid {
  display: grid;
  grid-template-columns: 180px minmax(0, 680px);
  gap: clamp(44px, 8vw, 112px);
  width: min(100% - 40px, 1020px);
  margin: 0 auto;
  padding: clamp(70px, 10vw, 130px) 0;
}

.rail {
  position: sticky;
  top: 40px;
  align-self: start;
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.08em;
  line-height: 1.6;
}

.rail > p { color: var(--muted); }

.rail ol {
  display: grid;
  gap: 13px;
  margin: 25px 0 0;
  padding: 0;
  list-style: none;
}

.rail a { text-underline-offset: 4px; }

.article-body {
  min-width: 0;
  font-size: clamp(17px, 1.65vw, 20px);
  letter-spacing: 0.015em;
  line-height: 2.05;
}

.article-body > p,
.article-body section > p {
  margin: 0 0 1.5em;
}

.lead {
  margin-bottom: 1.8em !important;
  font-size: clamp(23px, 3vw, 34px);
  font-weight: 500;
  line-height: 1.75;
}

.article-body section {
  scroll-margin-top: 30px;
  margin-top: clamp(92px, 13vw, 148px);
}

.section-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.14em;
}

.section-mark span {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.article-body h2 {
  margin: 0 0 46px;
  font-size: clamp(34px, 5.2vw, 62px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.28;
}

blockquote {
  margin: 58px 0;
  padding: 38px 0 38px clamp(22px, 5vw, 54px);
  border-block: 1px solid var(--line);
  color: var(--indigo);
}

blockquote p {
  margin: 0;
  font-size: clamp(25px, 4vw, 44px);
  line-height: 1.62;
}

.voice-quote cite {
  display: block;
  margin-top: 22px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 10px;
  font-style: normal;
  letter-spacing: 0.12em;
}

.ai-section {
  margin-inline: clamp(-34px, -4vw, -12px);
  padding: clamp(40px, 6vw, 66px);
  border-radius: 2px;
  background: var(--indigo);
  color: #f5f1e9;
}

.ai-section .section-mark,
.ai-section .section-label { color: #bebdd5; }

.section-label { margin: -2px 0 22px !important; }

.findings {
  margin: 48px 0;
  padding: 0;
  border-top: 1px solid rgba(255,255,255,0.24);
  list-style: none;
}

.findings li {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255,255,255,0.24);
}

.findings span {
  color: #bebdd5;
  font-family: var(--sans);
  font-size: 10px;
}

.findings p { margin: 0; }

.caution {
  padding: 20px;
  border: 1px solid rgba(255,255,255,0.3);
  font-size: 0.86em;
}

.closing {
  margin-top: 56px !important;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.75;
}

.reel-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 56px;
  padding: 22px 0;
  border-block: 1px solid var(--ink);
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-decoration: none;
}

.reel-link b { font-size: 20px; font-weight: 400; }

.notes {
  margin-top: 132px;
  padding-top: 46px;
  border-top: 1px solid var(--line);
  color: #56534f;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.9;
}

.notes section { margin-top: 0; }
.notes section + section { margin-top: 44px; }
.notes h2 { margin: 0 0 18px; font-family: var(--sans); font-size: 13px; letter-spacing: 0.08em; }
.notes ul, .notes ol { margin: 0; padding-left: 1.3em; }
.notes li + li { margin-top: 10px; }
.notes a { color: var(--indigo); text-underline-offset: 3px; }

.site-footer {
  min-height: 110px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer a { text-decoration: none; }

.copy-toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 40;
  padding: 13px 16px;
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.copy-toast.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 760px) {
  .site-header, .site-footer { width: min(100% - 32px, 680px); }
  .site-header { height: 64px; }
  .hero { width: min(100% - 32px, 680px); padding-top: 82px; }
  .hero-orbit { top: 9%; right: -28%; width: 72vw; opacity: 0.65; }
  .hero h1 { font-size: clamp(58px, 19vw, 92px); }
  .meta { flex-direction: column; gap: 7px; }
  .article-grid { display: block; width: min(100% - 32px, 680px); }
  .rail { display: none; }
  .article-body { line-height: 2; }
  .ai-section { margin-inline: -16px; padding: 34px 24px; border-radius: 0; }
  .findings li { grid-template-columns: 36px 1fr; }
  .notes { margin-top: 106px; }
}

@media (min-width: 761px) {
  .mobile-break { display: none; }
}

@media (max-width: 360px) {
  .site-header, .site-footer, .hero, .article-grid { width: calc(100% - 24px); }
  .share-button { padding-inline: 12px; font-size: 9px; }
  .hero h1 { font-size: 56px; }
  .ai-section { margin-inline: -12px; padding-inline: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}