:root {
  color-scheme: light;
  --paper: #f4f0e8;
  --paper-deep: #e9e2d6;
  --surface: #fffdf8;
  --surface-blue: #e8f0f0;
  --ink: #142b3c;
  --ink-soft: #28485a;
  --muted: #6c7473;
  --line: #d8d2c7;
  --line-dark: #b8b2a7;
  --coral: #df715e;
  --coral-deep: #b94f40;
  --teal: #2e7d78;
  --gold: #d7a341;
  --white: #fff;
  --shadow: 0 22px 70px rgba(20, 43, 60, 0.11);
  --serif: "Iowan Old Style", "Noto Serif SC", "Songti SC", STSong, Georgia, serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --max: 1180px;
  --reading: 720px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  max-width: 100%;
  overflow-x: clip;
}

body {
  margin: 0;
  max-width: 100%;
  overflow-x: clip;
  background:
    radial-gradient(circle at 96% 8%, rgba(46, 125, 120, 0.08), transparent 25rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

::selection {
  background: rgba(223, 113, 94, 0.23);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.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;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  transform: translateY(-160%);
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
}

.skip-link:focus {
  transform: translateY(0);
}

.section-shell,
.nav-shell {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid rgba(20, 43, 60, 0.08);
  background: rgba(244, 240, 232, 0.9);
  backdrop-filter: blur(18px);
  transition: box-shadow 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 253, 248, 0.94);
  box-shadow: 0 8px 30px rgba(20, 43, 60, 0.06);
}

.nav-shell {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  flex: 0 0 auto;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 45% 45% 45% 13%;
  background: var(--ink);
  color: var(--white);
  font: 600 22px/1 var(--serif);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-copy strong,
.footer-brand {
  font: 600 22px/1 var(--serif);
  letter-spacing: -0.035em;
}

.brand-copy small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.1em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
}

.primary-nav a {
  position: relative;
  padding: 27px 0 25px;
}

.primary-nav .language-link {
  margin-left: 4px;
  padding-right: 12px;
  padding-left: 12px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.04em;
}

.primary-nav .language-link::after {
  display: none;
}

.primary-nav .language-link:hover,
.primary-nav .language-link:focus-visible {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: 18px;
  left: 0;
  height: 2px;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  background: var(--coral);
  transition: transform 180ms ease;
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after,
.primary-nav a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 0;
  background: transparent;
}

.menu-button > span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 160ms ease, opacity 160ms ease;
}

.hero {
  display: grid;
  min-height: 650px;
  grid-template-columns: minmax(0, 1.18fr) minmax(350px, 0.82fr);
  align-items: center;
  gap: clamp(52px, 8vw, 110px);
  padding-block: 84px 96px;
}

.hero > *,
.hero-copy {
  min-width: 0;
}

.kicker,
.eyebrow,
.post-meta,
.journal-topline,
.ticket-label,
.status-label {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.kicker {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 0 0 28px;
  color: var(--teal);
}

.kicker span + span::before {
  display: inline-block;
  width: 26px;
  height: 1px;
  margin: 0 18px 3px 0;
  background: currentColor;
  content: "";
}

.hero h1,
.page-hero h1,
.article-hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.055em;
}

.hero h1 {
  max-width: 720px;
  font-size: clamp(57px, 6vw, 88px);
  line-height: 1.07;
}

.hero h1 em {
  display: block;
  color: var(--coral);
  font-style: normal;
}

.hero-intro {
  max-width: 640px;
  margin: 30px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(18px, 1.7vw, 22px);
  line-height: 1.82;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 0 21px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--ink);
  color: var(--white);
  box-shadow: 0 10px 28px rgba(20, 43, 60, 0.18);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #213f51;
  box-shadow: 0 14px 36px rgba(20, 43, 60, 0.24);
}

.button-quiet {
  border-color: var(--ink);
  color: var(--ink);
}

.button-quiet:hover,
.button-quiet:focus-visible {
  background: var(--ink);
  color: var(--white);
}

.text-link,
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border-bottom: 1px solid var(--line-dark);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  transition: color 160ms ease, border-color 160ms ease;
}

.text-link:hover,
.text-link:focus-visible,
.read-more:hover,
.read-more:focus-visible {
  border-color: var(--coral);
  color: var(--coral-deep);
}

.hero-journal {
  position: relative;
  min-height: 480px;
  padding: 34px 34px 40px;
  overflow: hidden;
  transform: rotate(1.35deg);
  border: 1px solid #c8c0b4;
  border-radius: 4px;
  background:
    linear-gradient(90deg, transparent 52px, rgba(223, 113, 94, 0.18) 52px, rgba(223, 113, 94, 0.18) 53px, transparent 53px),
    repeating-linear-gradient(180deg, transparent, transparent 32px, rgba(20, 43, 60, 0.08) 32px, rgba(20, 43, 60, 0.08) 33px),
    #fffaf0;
  box-shadow: var(--shadow);
}

.hero-journal::before {
  position: absolute;
  top: -46px;
  left: 44%;
  width: 108px;
  height: 88px;
  border-radius: 50%;
  background: rgba(46, 125, 120, 0.12);
  content: "";
}

.journal-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.route-visual {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  margin-top: 64px;
}

.airport {
  display: flex;
  flex-direction: column;
}

.airport strong {
  font: 500 clamp(38px, 5vw, 55px)/1 var(--serif);
  letter-spacing: -0.04em;
}

.airport span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.airport-right {
  text-align: right;
}

.route-line {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--coral);
}

.route-line i {
  height: 1px;
  flex: 1;
  background: currentColor;
}

.route-line b {
  font-weight: 400;
}

.hero-journal blockquote {
  margin: 86px 0 0 22px;
  font: 500 clamp(24px, 2.6vw, 35px)/1.55 var(--serif);
}

.journal-stamp {
  position: absolute;
  right: 34px;
  bottom: 31px;
  width: 98px;
  height: 98px;
  display: grid;
  place-items: center;
  transform: rotate(-8deg);
  border: 2px solid rgba(46, 125, 120, 0.58);
  border-radius: 50%;
  color: rgba(46, 125, 120, 0.78);
  font-size: 9px;
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: 0.12em;
  text-align: center;
}

.journal-edge {
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, transparent 50%, #ded5c8 51%, #f8f0e5 71%);
  box-shadow: -8px -8px 20px rgba(20, 43, 60, 0.06);
}

.feature-wrap,
.latest,
.start-path {
  padding-block: 92px;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 38px;
}

.section-heading-line {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--ink);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--coral-deep);
}

.section-heading h2,
.path-intro h2,
.tool-copy h2,
.author-strip h2,
.article-section h2,
.archive-heading h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.04em;
}

.section-heading > p {
  max-width: 340px;
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 16px;
}

.feature-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 44px;
}

.lead-story {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 18px 60px rgba(20, 43, 60, 0.07);
}

.story-visual {
  position: relative;
  display: block;
  min-height: 310px;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.story-visual-ticket {
  padding: 33px;
  background:
    radial-gradient(circle at 78% 22%, rgba(223, 113, 94, 0.84), transparent 10rem),
    linear-gradient(145deg, #163247 0%, #244c5b 55%, #1f716f 100%);
}

.story-visual-ticket::before,
.story-visual-ticket::after {
  position: absolute;
  top: -17px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--paper);
  content: "";
}

.story-visual-ticket::before {
  left: 46%;
}

.story-visual-ticket::after {
  bottom: -17px;
  top: auto;
  left: 46%;
}

.visual-index {
  position: absolute;
  right: 30px;
  bottom: -24px;
  color: rgba(255, 255, 255, 0.08);
  font: 500 170px/1 var(--serif);
}

.ticket-label {
  color: rgba(255, 255, 255, 0.68);
}

.ticket-code {
  position: absolute;
  top: 108px;
  left: 34px;
  font: 500 23px/1 var(--serif);
}

.ticket-route {
  position: absolute;
  bottom: 38px;
  left: 34px;
  font: 500 clamp(42px, 6vw, 70px)/1 var(--serif);
  letter-spacing: -0.05em;
}

.story-visual-ticket i {
  position: absolute;
  top: 0;
  right: 46%;
  bottom: 0;
  border-left: 1px dashed rgba(255, 255, 255, 0.28);
}

.story-body {
  padding: 30px 34px 35px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 13px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.09em;
}

.post-meta a,
.post-meta > span:first-child {
  color: var(--coral-deep);
}

.post-meta a:hover,
.post-meta a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.post-meta > * + *::before {
  margin-right: 13px;
  color: var(--line-dark);
  content: "·";
}

.story-body h3,
.side-story h3,
.article-card h3,
.related-card h3 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.story-body h3 {
  max-width: 580px;
  margin: 15px 0 12px;
  font-size: clamp(29px, 3.3vw, 42px);
  line-height: 1.3;
}

.story-body h3 a:hover,
.side-story h3 a:hover,
.article-card h3 a:hover,
.related-card h3 a:hover {
  color: var(--coral-deep);
}

.story-body p {
  margin: 0 0 22px;
  color: var(--muted);
}

.side-stories {
  display: flex;
  flex-direction: column;
}

.side-story {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 22px;
  padding: 6px 0 31px;
  border-bottom: 1px solid var(--line);
}

.side-story + .side-story {
  padding-top: 30px;
}

.post-number {
  color: var(--line-dark);
  font: 500 29px/1 var(--serif);
}

.side-story h3 {
  margin: 11px 0 9px;
  font-size: 25px;
  line-height: 1.34;
}

.side-story p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.notebook-note {
  position: relative;
  margin-top: 31px;
  padding: 28px 30px 25px;
  transform: rotate(-0.7deg);
  background: #f3df9e;
  box-shadow: 0 14px 34px rgba(20, 43, 60, 0.09);
}

.notebook-note::before {
  position: absolute;
  top: -10px;
  left: 42%;
  width: 72px;
  height: 21px;
  transform: rotate(2deg);
  background: rgba(255, 255, 255, 0.48);
  content: "";
}

.notebook-note p {
  margin: 0 0 8px;
  color: #8a6d2b;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.notebook-note strong {
  display: block;
  font: 500 25px/1.4 var(--serif);
}

.notebook-note span {
  display: block;
  margin-top: 10px;
  color: #6b5b37;
  font-size: 13px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
}

.article-card {
  min-width: 0;
}

.card-art {
  position: relative;
  height: 205px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  overflow: hidden;
  margin-bottom: 22px;
  color: var(--white);
}

.card-art::before {
  position: absolute;
  top: 30px;
  right: -15px;
  width: 150px;
  height: 150px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  content: "";
}

.card-art::after {
  position: absolute;
  top: 67px;
  right: 22px;
  width: 75px;
  border-top: 1px solid rgba(255, 255, 255, 0.34);
  content: "";
}

.card-art span {
  font: 500 71px/0.9 var(--serif);
  letter-spacing: -0.06em;
}

.card-art i {
  margin-top: 12px;
  font-size: 10px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.17em;
}

.tone-coral .card-art {
  background: linear-gradient(145deg, #d76754, #bb4f41);
}

.tone-teal .card-art {
  background: linear-gradient(145deg, #357e79, #1e535b);
}

.tone-gold .card-art {
  background: linear-gradient(145deg, #d4a143, #9f752b);
}

.article-card h3 {
  margin: 13px 0 9px;
  font-size: 25px;
  line-height: 1.38;
}

.article-card > p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.is-upcoming {
  opacity: 0.72;
}

.status-label {
  display: inline-flex;
  padding: 3px 8px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  font-size: 8px;
}

.start-path {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(60px, 9vw, 130px);
}

.path-intro > p:not(.eyebrow) {
  margin: 19px 0 27px;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.8;
}

.path-list {
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: path;
}

.path-list li,
.path-list a {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 18px;
}

.path-list li {
  min-height: 73px;
  padding: 0 4px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.path-list li:first-child {
  border-top: 1px solid var(--line);
}

.path-list li.is-ready {
  color: var(--ink);
}

.path-list a {
  grid-column: 1 / -1;
  width: 100%;
  min-height: 72px;
}

.path-list span {
  color: var(--coral-deep);
  font: 500 18px/1 var(--serif);
}

.path-list strong {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
}

.path-list em {
  font-size: 11px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.07em;
}

.path-list li.is-ready:hover {
  background: rgba(255, 255, 255, 0.42);
}

.tool-feature {
  display: grid;
  grid-template-columns: 1fr minmax(320px, 0.78fr);
  gap: clamp(55px, 9vw, 120px);
  align-items: center;
  margin-block: 92px;
  padding: clamp(50px, 7vw, 80px);
  background: var(--surface-blue);
}

.tool-copy > p:not(.eyebrow) {
  max-width: 620px;
  margin: 20px 0 20px;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 18px;
}

.plain-checks {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: 0 0 28px;
  color: var(--ink-soft);
  font-size: 14px;
  list-style: none;
}

.plain-checks li::before {
  margin-right: 10px;
  color: var(--teal);
  content: "✓";
}

.mini-result {
  padding: 8px 28px 24px;
  transform: rotate(1deg);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.mini-query {
  display: grid;
  padding: 23px 0 25px;
  border-bottom: 1px dashed var(--line-dark);
}

.mini-query span,
.mini-query small {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.mini-query strong {
  margin: 6px 0;
  font: 500 30px/1.1 var(--serif);
}

.mini-row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: 53px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.mini-row i {
  color: var(--muted);
  font-size: 10px;
  font-style: normal;
}

.mini-row b {
  font-weight: 600;
}

.mini-row strong {
  font: 500 20px/1 var(--serif);
}

.mini-row.is-first strong {
  color: var(--coral-deep);
}

.mini-result > p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 10px;
  text-align: right;
}

.author-strip {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 34px;
  margin-bottom: 100px;
  padding-block: 44px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.author-monogram {
  position: relative;
  width: 92px;
  height: 92px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  font: 500 47px/1 var(--serif);
}

.author-monogram i {
  position: absolute;
  right: -7px;
  bottom: 6px;
  width: 29px;
  height: 29px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--coral);
  font-size: 12px;
  font-style: normal;
}

.author-strip h2 {
  font-size: 34px;
}

.author-strip p:not(.eyebrow) {
  max-width: 670px;
  margin: 10px 0 0;
  color: var(--muted);
  font-family: var(--serif);
}

.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.55fr 0.7fr 0.9fr 1.1fr;
  gap: clamp(35px, 6vw, 86px);
  padding-block: 68px 58px;
}

.footer-brand {
  color: var(--white);
  font-size: 28px;
}

.footer-grid p {
  margin: 16px 0 0;
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.8;
}

.footer-grid > div:not(:first-child) {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
}

.footer-grid strong {
  margin-bottom: 4px;
  color: var(--white);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.footer-grid a:not(.footer-brand):hover,
.footer-grid a:not(.footer-brand):focus-visible {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer-note span {
  color: var(--coral);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.footer-note p {
  margin-top: 4px;
  font-family: var(--sans);
  font-size: 12px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  padding-block: 21px;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  font-size: 11px;
}

/* Interior pages */
.page-hero {
  padding-block: 90px 70px;
  border-bottom: 1px solid var(--line);
}

.page-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(270px, 0.75fr);
  align-items: end;
  gap: 80px;
}

.page-hero h1 {
  max-width: 780px;
  font-size: clamp(49px, 6vw, 78px);
  line-height: 1.12;
}

.page-hero h1 em {
  color: var(--coral);
  font-style: normal;
}

.page-hero-intro {
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.9;
}

.breadcrumbs {
  display: flex;
  gap: 9px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
}

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible {
  color: var(--coral-deep);
}

.archive {
  padding-block: 70px 110px;
}

.archive-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 42px;
}

.filter-button {
  padding: 8px 14px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 12px;
}

.filter-button:hover,
.filter-button:focus-visible,
.filter-button.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.archive-list {
  display: grid;
}

.archive-item {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  align-items: center;
  gap: 34px;
  min-height: 148px;
  padding-block: 25px;
  border-top: 1px solid var(--line);
}

.archive-item:last-child {
  border-bottom: 1px solid var(--line);
}

.archive-item[hidden] {
  display: none;
}

.archive-index {
  font: 500 52px/1 var(--serif);
  color: var(--line-dark);
}

.archive-copy h2 {
  margin: 8px 0 6px;
  font: 500 clamp(25px, 3vw, 34px)/1.3 var(--serif);
  letter-spacing: -0.035em;
}

.archive-copy h2 a:hover {
  color: var(--coral-deep);
}

.archive-copy p {
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
}

.archive-arrow {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.archive-item:hover .archive-arrow {
  transform: translateX(3px);
  background: var(--ink);
  color: var(--white);
}

.course-shell {
  padding-block: 72px 110px;
}

.course-card {
  display: grid;
  grid-template-columns: 84px 1fr auto;
  gap: 34px;
  align-items: center;
  min-height: 150px;
  padding: 27px 0;
  border-top: 1px solid var(--line);
}

.course-card:last-child {
  border-bottom: 1px solid var(--line);
}

.course-card > span {
  color: var(--coral-deep);
  font: 500 38px/1 var(--serif);
}

.course-card h2 {
  margin: 0 0 7px;
  font: 500 30px/1.35 var(--serif);
  letter-spacing: -0.025em;
}

.course-card p {
  margin: 0;
  color: var(--muted);
}

.course-card small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.course-card.is-locked {
  opacity: 0.48;
}

/* Article */
.reading-progress {
  position: fixed;
  z-index: 150;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--coral);
}

.article-hero {
  padding: 74px 0 46px;
}

.article-hero-inner {
  width: min(calc(100% - 48px), 950px);
  margin-inline: auto;
}

.article-hero h1 {
  max-width: 930px;
  font-size: clamp(47px, 6.3vw, 78px);
  line-height: 1.16;
}

.article-dek {
  max-width: 760px;
  margin: 25px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.78;
}

.article-byline {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 31px;
  color: var(--muted);
  font-size: 12px;
}

.byline-mark {
  width: 33px;
  height: 33px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  font: 500 17px/1 var(--serif);
}

.article-cover {
  width: min(calc(100% - 48px), var(--max));
  min-height: 360px;
  display: grid;
  place-items: center;
  margin: 0 auto 70px;
  overflow: hidden;
}

.article-cover-ticket {
  position: relative;
  background:
    radial-gradient(circle at 72% 32%, rgba(223, 113, 94, 0.86), transparent 12rem),
    linear-gradient(135deg, #1d4355, #1e7471);
  color: var(--white);
}

.article-cover-ticket::before,
.article-cover-ticket::after {
  position: absolute;
  top: 50%;
  width: 52px;
  height: 52px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--paper);
  content: "";
}

.article-cover-ticket::before { left: -26px; }
.article-cover-ticket::after { right: -26px; }

.cover-route {
  display: flex;
  align-items: center;
  gap: clamp(25px, 5vw, 70px);
  font: 500 clamp(54px, 9vw, 116px)/1 var(--serif);
  letter-spacing: -0.06em;
}

.cover-route i {
  width: clamp(80px, 14vw, 190px);
  border-top: 1px dashed rgba(255, 255, 255, 0.72);
}

.article-cover-class {
  background: linear-gradient(135deg, #be5546, #e27b64);
  color: var(--white);
}

.article-cover-value {
  background: linear-gradient(135deg, #22535c, #3a8580);
  color: var(--white);
}

.cover-symbol {
  font: 500 clamp(80px, 13vw, 170px)/1 var(--serif);
  letter-spacing: -0.07em;
}

.article-layout {
  display: grid;
  width: min(calc(100% - 48px), 1030px);
  grid-template-columns: 180px minmax(0, var(--reading));
  gap: 55px;
  justify-content: center;
  margin-inline: auto;
  padding-bottom: 90px;
}

.article-aside {
  position: relative;
}

.article-aside-inner {
  position: sticky;
  top: 110px;
  display: grid;
  gap: 20px;
  color: var(--muted);
  font-size: 11px;
}

.article-aside-inner strong {
  color: var(--ink);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.article-aside-inner a:hover {
  color: var(--coral-deep);
}

.article-content {
  min-width: 0;
  color: #213743;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.98;
}

.article-content > p:first-child::first-letter {
  float: left;
  margin: 11px 10px 0 0;
  color: var(--coral-deep);
  font: 500 76px/0.7 var(--serif);
}

.article-content p {
  margin: 0 0 1.35em;
}

.article-content h2 {
  scroll-margin-top: 110px;
  margin: 2.15em 0 0.72em;
  color: var(--ink);
  font-size: 32px;
  line-height: 1.4;
}

.article-content h3 {
  margin: 1.8em 0 0.55em;
  color: var(--ink);
  font-size: 23px;
  font-weight: 600;
}

.article-content a {
  border-bottom: 1px solid var(--coral);
  color: var(--coral-deep);
}

.article-content ul,
.article-content ol {
  padding-left: 1.35em;
  margin: 0 0 1.5em;
}

.article-content li {
  margin-bottom: 0.5em;
  padding-left: 0.25em;
}

.article-content blockquote {
  margin: 2em 0;
  padding: 7px 0 7px 27px;
  border-left: 3px solid var(--coral);
  color: var(--ink);
  font-size: 25px;
  line-height: 1.65;
}

.article-callout {
  margin: 2em 0;
  padding: 25px 28px;
  border: 1px solid #b8cfcc;
  background: var(--surface-blue);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.8;
}

.article-callout strong {
  display: block;
  margin-bottom: 7px;
  color: var(--teal);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.article-table {
  width: 100%;
  margin: 2em 0;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 13px;
}

.article-table th,
.article-table td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.article-table th {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.source-note {
  margin-top: 3em !important;
  padding-top: 1.5em;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.75;
}

.article-end {
  width: min(calc(100% - 48px), 950px);
  margin: 0 auto 100px;
  padding-top: 45px;
  border-top: 1px solid var(--ink);
}

.article-author-card {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  align-items: center;
  gap: 25px;
}

.article-author-card .author-monogram {
  width: 70px;
  height: 70px;
  font-size: 35px;
}

.article-author-card h2 {
  margin: 0 0 5px;
  font: 500 25px/1.3 var(--serif);
}

.article-author-card p {
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 14px;
}

.related-posts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.related-card {
  padding: 25px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.related-card h3 {
  margin: 11px 0 0;
  font-size: 22px;
  line-height: 1.4;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(65px, 10vw, 140px);
  padding-block: 90px 110px;
}

.about-portrait {
  position: sticky;
  top: 110px;
  height: 420px;
  display: grid;
  place-items: center;
  align-self: start;
  overflow: hidden;
  background: linear-gradient(145deg, var(--ink), #285667);
  color: rgba(255, 255, 255, 0.96);
  font: 500 160px/1 var(--serif);
}

.about-portrait::before,
.about-portrait::after {
  position: absolute;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  content: "";
}

.about-portrait::before { top: -100px; right: -80px; }
.about-portrait::after { bottom: -150px; left: -70px; }

.about-copy {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.95;
}

.about-copy h2 {
  scroll-margin-top: 110px;
  margin: 2em 0 0.6em;
  font-size: 33px;
  font-weight: 500;
  letter-spacing: -0.035em;
}

.about-copy h2:first-child {
  margin-top: 0;
}

.about-copy p {
  margin: 0 0 1.25em;
}

.principles {
  display: grid;
  gap: 13px;
  margin: 25px 0;
}

.principle {
  display: grid;
  grid-template-columns: 35px 1fr;
  gap: 14px;
  padding: 17px 0;
  border-top: 1px solid var(--line);
  font-family: var(--sans);
  font-size: 14px;
}

.principle span {
  color: var(--coral-deep);
  font: 500 19px/1.4 var(--serif);
}

/* Tool */
.tool-page {
  padding-block: 68px 110px;
}

.tool-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(0, 1.2fr);
  align-items: start;
  gap: 34px;
}

.query-panel,
.results-panel {
  border: 1px solid var(--line);
  background: var(--surface);
}

.query-panel {
  position: sticky;
  top: 105px;
  padding: 30px;
  box-shadow: 0 18px 55px rgba(20, 43, 60, 0.07);
}

.panel-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.panel-heading h2 {
  margin: 0;
  font: 500 28px/1.25 var(--serif);
}

.panel-heading small {
  color: var(--muted);
  font-size: 10px;
}

.sample-button {
  padding: 6px 10px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
}

.sample-button:hover,
.sample-button:focus-visible {
  background: var(--paper-deep);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 17px 14px;
}

.form-field {
  display: grid;
  gap: 7px;
}

.form-field.is-wide {
  grid-column: 1 / -1;
}

.form-field label {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
}

.form-field label span {
  color: var(--muted);
  font-weight: 400;
}

.form-field input,
.form-field select {
  width: 100%;
  height: 48px;
  padding: 0 13px;
  border: 1px solid var(--line-dark);
  border-radius: 0;
  outline: none;
  background: var(--white);
  color: var(--ink);
  text-transform: uppercase;
}

.form-field input:focus,
.form-field select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(46, 125, 120, 0.12);
}

.form-field input::placeholder {
  color: #a6aaa8;
}

.form-help {
  margin: 17px 0 21px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.65;
}

.query-submit {
  width: 100%;
  border: 0;
  cursor: pointer;
}

.query-submit[disabled] {
  cursor: wait;
  opacity: 0.65;
}

.results-panel {
  min-height: 500px;
  padding: 31px;
}

.results-empty {
  min-height: 430px;
  display: grid;
  place-items: center;
  color: var(--muted);
  text-align: center;
}

.empty-mark {
  width: 95px;
  height: 95px;
  display: grid;
  place-items: center;
  margin: 0 auto 19px;
  border: 1px dashed var(--line-dark);
  border-radius: 50%;
  color: var(--line-dark);
  font: 500 37px/1 var(--serif);
}

.results-empty p {
  max-width: 300px;
  margin: 0;
  font-family: var(--serif);
  line-height: 1.7;
}

.query-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--ink);
}

.query-summary h2 {
  margin: 0;
  font: 500 31px/1.2 var(--serif);
}

.query-summary p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.result-count {
  color: var(--coral-deep);
  font: 500 28px/1 var(--serif);
}

.result-warning {
  margin: 18px 0 0;
  padding: 12px 14px;
  background: #f7e8bb;
  color: #6b5830;
  font-size: 11px;
}

.result-list {
  margin-top: 10px;
}

.result-row {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  min-height: 83px;
  padding-block: 13px;
  border-bottom: 1px solid var(--line);
}

.result-rank {
  color: var(--line-dark);
  font: 500 18px/1 var(--serif);
}

.result-name strong {
  display: block;
  font: 500 18px/1.3 var(--serif);
}

.result-name span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 10px;
}

.result-miles {
  text-align: right;
}

.result-miles strong {
  display: block;
  color: var(--ink);
  font: 500 25px/1 var(--serif);
}

.result-miles span {
  color: var(--muted);
  font-size: 9px;
}

.result-row:first-child .result-rank,
.result-row:first-child .result-miles strong {
  color: var(--coral-deep);
}

.result-flags {
  grid-column: 2 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: -7px;
}

.result-flag {
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 8px;
}

.tool-notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 38px;
}

.tool-note {
  padding: 22px;
  border-top: 2px solid var(--ink);
  background: rgba(255, 255, 255, 0.38);
}

.tool-note strong {
  display: block;
  margin-bottom: 7px;
  font: 500 18px/1.3 var(--serif);
}

.tool-note p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.error-box {
  padding: 18px;
  border: 1px solid #dc9d91;
  background: #f8e6e2;
  color: #7d3f35;
  font-size: 13px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 560ms ease, transform 560ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 980px) {
  .hero {
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 58px;
    padding-block: 74px 84px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-journal {
    width: min(100%, 600px);
    min-height: 430px;
    margin-left: auto;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .side-stories {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .side-story,
  .side-story + .side-story {
    padding-top: 0;
  }

  .notebook-note {
    grid-column: 1 / -1;
  }

  .tool-feature {
    grid-template-columns: 1fr;
  }

  .mini-result {
    width: min(100%, 500px);
  }

  .footer-grid {
    grid-template-columns: 1.3fr 0.7fr 0.9fr;
  }

  .footer-note {
    grid-column: 1 / -1;
  }

  .article-layout {
    grid-template-columns: minmax(0, var(--reading));
  }

  .article-aside {
    display: none;
  }

  .about-grid {
    grid-template-columns: 0.65fr 1.35fr;
    gap: 55px;
  }

  .tool-layout {
    grid-template-columns: 1fr;
  }

  .query-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .section-shell,
  .nav-shell,
  .article-hero-inner,
  .article-cover,
  .article-layout,
  .article-end {
    width: min(calc(100% - 30px), var(--max));
  }

  .nav-shell {
    min-height: 67px;
  }

  .brand-copy small {
    display: none;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 19px;
  }

  .menu-button {
    display: block;
  }

  .menu-button[aria-expanded="true"] > span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] > span:nth-child(2) {
    opacity: 0;
  }

  .menu-button[aria-expanded="true"] > span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .primary-nav {
    position: absolute;
    z-index: 90;
    top: 100%;
    right: 0;
    bottom: auto;
    left: 0;
    height: calc(100vh - 67px);
    height: calc(100dvh - 67px);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 26px 24px;
    transform: translateX(100%);
    visibility: hidden;
    pointer-events: none;
    background: var(--surface);
    transition: transform 220ms ease, visibility 0s linear 220ms;
  }

  .primary-nav.is-open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }

  .primary-nav a {
    padding: 18px 4px;
    border-bottom: 1px solid var(--line);
    font-family: var(--serif);
    font-size: 23px;
    font-weight: 500;
  }

  .primary-nav .language-link {
    margin: 22px 0 0;
    align-self: flex-start;
    padding: 8px 15px;
    border-bottom: 1px solid var(--line-dark);
    font-family: var(--sans);
    font-size: 12px;
  }

  .primary-nav a::after {
    display: none;
  }

  .hero {
    gap: 44px;
    padding-block: 55px 65px;
  }

  .hero h1 {
    font-size: clamp(48px, 14vw, 67px);
    overflow-wrap: anywhere;
  }

  .kicker {
    flex-wrap: wrap;
    row-gap: 6px;
  }

  .kicker span + span::before {
    width: 16px;
    margin-right: 10px;
  }

  .hero-intro {
    font-size: 18px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .hero-journal {
    min-height: 380px;
    padding: 25px;
    transform: rotate(0.7deg);
  }

  .route-visual {
    gap: 10px;
    margin-top: 51px;
  }

  .airport strong {
    font-size: 35px;
  }

  .hero-journal blockquote {
    margin: 64px 0 0 14px;
    font-size: 24px;
  }

  .journal-stamp {
    right: 22px;
    bottom: 24px;
    width: 77px;
    height: 77px;
    font-size: 7px;
  }

  .feature-wrap,
  .latest,
  .start-path {
    padding-block: 67px;
  }

  .section-heading {
    display: block;
  }

  .section-heading > p,
  .section-heading > .text-link {
    display: inline-flex;
    margin-top: 14px;
  }

  .story-visual {
    min-height: 240px;
  }

  .ticket-route {
    font-size: 42px;
  }

  .visual-index {
    font-size: 120px;
  }

  .story-body {
    padding: 25px 23px 28px;
  }

  .story-body h3 {
    font-size: 30px;
  }

  .side-stories,
  .article-grid,
  .start-path,
  .tool-feature,
  .about-grid,
  .page-hero-inner {
    grid-template-columns: 1fr;
  }

  .side-stories {
    gap: 28px;
  }

  .article-grid {
    gap: 44px;
  }

  .card-art {
    height: 190px;
  }

  .start-path {
    gap: 45px;
  }

  .tool-feature {
    width: 100%;
    margin-block: 60px;
    padding: 48px 22px;
  }

  .author-strip {
    grid-template-columns: 72px 1fr;
    gap: 20px;
    margin-bottom: 70px;
  }

  .author-monogram {
    width: 72px;
    height: 72px;
    font-size: 37px;
  }

  .author-strip .text-link {
    grid-column: 2;
    justify-self: start;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px 25px;
  }

  .footer-grid > div:first-child,
  .footer-note {
    grid-column: 1 / -1;
  }

  .page-hero {
    padding-block: 60px 50px;
  }

  .page-hero-inner {
    gap: 28px;
  }

  .archive {
    padding-block: 52px 80px;
  }

  .archive-item {
    grid-template-columns: 50px 1fr;
    gap: 16px;
  }

  .archive-index {
    font-size: 34px;
  }

  .archive-arrow {
    display: none;
  }

  .course-card {
    grid-template-columns: 48px 1fr;
    gap: 17px;
  }

  .course-card small {
    grid-column: 2;
  }

  .article-hero {
    padding: 52px 0 36px;
  }

  .article-hero h1 {
    font-size: clamp(40px, 11vw, 58px);
  }

  .article-cover {
    min-height: 235px;
    margin-bottom: 50px;
  }

  .article-content {
    font-size: 17px;
    line-height: 1.92;
  }

  .article-content h2 {
    font-size: 28px;
  }

  .article-content blockquote {
    padding-left: 20px;
    font-size: 22px;
  }

  .article-author-card {
    grid-template-columns: 60px 1fr;
  }

  .article-author-card .text-link {
    grid-column: 2;
    justify-self: start;
  }

  .related-posts {
    grid-template-columns: 1fr;
  }

  .about-grid {
    gap: 48px;
    padding-block: 60px 80px;
  }

  .about-portrait {
    position: relative;
    top: auto;
    height: 280px;
    font-size: 110px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-field.is-wide {
    grid-column: auto;
  }

  .query-panel,
  .results-panel {
    padding: 23px;
  }

  .tool-notes {
    grid-template-columns: 1fr;
  }

  .result-row {
    grid-template-columns: 28px minmax(0, 1fr) auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}