:root {
  color-scheme: light;
  --paper: #f3f6f2;
  --ink: #203a30;
  --muted: #5c6a61;
  --accent: #376b4f;
  --surface: #e7ede6;
  --selected: #203a30;
  --selected-ink: #f5f7f1;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;
  --gap: 96px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 36px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.8 var(--sans); word-break: keep-all; overflow-wrap: break-word; transition: background-color 260ms, color 260ms; }
button, input { font: inherit; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-underline-offset: 5px; text-decoration-thickness: 1px; }
button { cursor: pointer; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; border-radius: 2px; }
a { transition: color 150ms, opacity 150ms; }
a:hover { color: var(--accent); }
[hidden] { display: none !important; }
h1, h2, h3, p { margin: 0; }
button { border: 0; }
.frame { width: min(100% - 112px, 1024px); margin-inline: auto; }
.site-header { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px; padding-top: 39px; }
.wordmark { font: 700 32px/1 var(--serif); letter-spacing: -1.8px; text-decoration: none; }
.wordmark span { color: var(--accent); }
.primary-nav { display: flex; justify-content: flex-end; align-items: center; gap: 25px; font-size: 14px; }
.language-nav { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.language-nav a { color: var(--muted); }
.language-nav a[aria-current="page"] { color: var(--ink); font-weight: 700; text-decoration: underline; text-underline-offset: 5px; }
.primary-nav a, .language-nav a { text-decoration: none; padding-block: 8px; }
.section-grid { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 40px; margin-top: var(--gap); }
.section-heading { font-size: 16px; font-weight: 500; line-height: 1.8; padding-top: 3px; }
.hero { margin-top: 84px; margin-bottom: 112px; }
.hero-profile { padding-top: 76px; }
.hero-profile img { display: block; width: 100%; height: auto; border-radius: 50%; }
.hero-profile .welcome { padding-top: 18px; }
.hero-content { position: relative; }
h1 { font: 400 clamp(66px, 7.2vw, 96px)/1.08 var(--serif); letter-spacing: -5px; }
.hero-headline { font-size: clamp(34px, 4.4vw, 60px); line-height: 1.2; letter-spacing: -1.6px; }
.name-period { color: var(--accent); }
.hero-statement { font-size: 28px; font-weight: 500; letter-spacing: -.9px; line-height: 1.6; margin-top: 32px; }
.intro-copy { margin-top: 24px; }
.intro-copy p { line-height: 1.9; }
.author-note { margin-top: 9px; color: var(--muted); font-size: 13px; }
.intro-copy .journey-story { margin-top: 16px; color: var(--muted); font-size: 15px; }
.journey { grid-column: 1 / -1; width: min(100%, 900px); margin: 8px auto 0; }
.journey > img { display: block; width: 100%; height: auto; }
.journey figcaption { margin-top: -24px; }
.journey ol { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; text-align: center; }
.journey li { min-width: 0; }
.journey strong, .journey span { display: block; }
.journey strong { font-size: 16px; font-weight: 500; }
.journey span { margin-top: 3px; color: var(--muted); font-size: 13px; line-height: 1.6; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; margin-top: 31px; }
.primary-link { display: inline-flex; align-items: center; gap: 25px; padding: 10px 17px; background: var(--selected); color: var(--selected-ink); text-decoration: none; font-size: 14px; border-radius: 3px; transition: transform 160ms, opacity 160ms; }
.primary-link:hover { color: var(--selected-ink); opacity: .88; transform: translateY(-2px); }
.primary-link:active { transform: translateY(0); }
.text-link { font-size: 14px; text-decoration: none; }
h3 { font-size: 23px; font-weight: 500; letter-spacing: -.6px; line-height: 1.45; }
.site-footer { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 99px 0 36px; font-size: 13px; color: var(--muted); }
.site-footer a { text-decoration: none; }
.skip-link { position: absolute; left: 24px; top: -100px; padding: 10px 18px; background: var(--selected); color: var(--selected-ink); z-index: 10; }
.skip-link:focus { top: 16px; }

.books-section { margin-top: var(--gap); }
.book-cover-stage { display: flex; align-items: center; aspect-ratio: 400 / 608; flex-shrink: 0; background: var(--surface); }
.book-card[aria-labelledby="strategic-monoliths-title"] .book-cover-stage { background: #000; }
.book-cover-stage img { display: block; width: 100%; height: auto; }
.book-card .book-contributors { color: var(--muted); font-size: 13px; line-height: 1.8; }
.book-card .book-subtitle { margin-top: 10px; font-size: 14px; line-height: 1.7; }
.book-card-footer { flex-wrap: wrap; }
.book-card-footer > span { white-space: nowrap; }
.newsletter-section { margin-top: var(--gap); }
.newsletter-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.newsletter-header h2 { font-size: 32px; font-weight: 500; letter-spacing: -1px; line-height: 1.4; }
.newsletter-header p { margin-top: 15px; font-size: 17px; }
.newsletter-more { flex-shrink: 0; display: inline-flex; align-items: center; gap: 14px; padding-block: 8px; font-size: 14px; text-decoration: none; }
.newsletter-more:hover { text-decoration: underline; }
.newsletter-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.newsletter-card { display: flex; min-width: 0; }
.newsletter-card > a { display: flex; flex-direction: column; width: 100%; background: var(--surface); border-radius: 6px; overflow: hidden; color: var(--ink); text-decoration: none; }
.newsletter-card > a:hover { color: var(--ink); }
.newsletter-image { overflow: hidden; aspect-ratio: 16 / 9; }
.newsletter-image img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 220ms; }
.newsletter-card > a:hover .newsletter-image img { transform: scale(1.025); }
.newsletter-card-content { display: flex; flex-direction: column; flex: 1; padding: 24px 22px 22px; }
.newsletter-card h3 { font-size: 20px; line-height: 1.5; letter-spacing: -.5px; }
.newsletter-card > a:hover h3 { text-decoration: underline; text-underline-offset: 5px; }
.newsletter-card-content > p { margin-top: 16px; font-size: 16px; line-height: 1.8; }
.newsletter-card-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: auto; padding-top: 28px; font-size: 13px; color: var(--muted); }
.newsletter-card-footer > span { color: var(--accent); }
.newsletter-feed { margin-top: 20px; }
.empty-note { font-size: 16px; color: var(--muted); }
@media (prefers-reduced-motion: no-preference) {
  .hero-content > *, .hero-profile, .section-grid:not(.hero), .newsletter-header, .newsletter-card { animation: enter 600ms both; }
  .hero-content > :nth-child(2) { animation-delay: 60ms; }
  .hero-content > :nth-child(3) { animation-delay: 120ms; }
  .hero-content > :nth-child(5) { animation-delay: 180ms; }
  .hero-content > :nth-child(7) { animation-delay: 220ms; }
  @keyframes enter { from { opacity: .3; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
}
@media (max-width: 900px) {
  .frame { width: min(100% - 64px, 780px); }
  .section-grid { grid-template-columns: 110px minmax(0, 1fr); gap: 32px; }
  .site-footer { flex-wrap: wrap; }
  .hero { margin-top: 70px; }
  h1 { font-size: 80px; }
}
@media (max-width: 600px) {
  :root { --gap: 68px; }
  .frame { width: calc(100% - 44px); }
  .site-header { grid-template-columns: 1fr auto; gap: 16px; padding-top: 26px; }
  .primary-nav { grid-column: 1 / -1; grid-row: 2; justify-content: space-between; gap: 8px; font-size: 12px; }
  .language-nav { grid-column: 2; grid-row: 1; }
  .wordmark { font-size: 29px; }
  .section-grid { display: block; }
  .section-heading { margin-bottom: 26px; font-size: 14px; }
  .hero { margin-top: 54px; margin-bottom: 72px; }
  .hero-profile { display: flex; align-items: center; gap: 20px; padding-top: 0; margin-bottom: 27px; }
  .hero-profile img { width: 88px; height: 88px; flex-shrink: 0; }
  .hero-profile .welcome { padding: 0; margin-bottom: 0; }
  h1 { font-size: clamp(62px, 16vw, 84px); letter-spacing: -3.5px; }
  .hero-statement { font-size: 26px; margin-top: 24px; line-height: 1.6; }
  .intro-copy { margin-top: 23px; }
  .intro-copy p { font-size: 16px; }
  .intro-copy .journey-story { font-size: 14px; }
  .journey { margin-top: 40px; }
  .journey figcaption { margin-top: -8px; }
  .journey ol { gap: 8px; }
  .journey strong { font-size: 13px; }
  .journey span { font-size: 12px; }

  .desktop-break { display: none; }
  .hero-actions { gap: 18px; margin-top: 27px; }
  .primary-link { gap: 18px; padding-inline: 15px; }
  .text-link { font-size: 13px; }
  h3 { font-size: 21px; }
  .site-footer { display: block; padding-top: 73px; padding-bottom: 29px; }
  .site-footer p + p { margin-top: 7px; }
  .site-footer > a { display: inline-block; margin-top: 19px; }
}
@media (min-width: 701px) and (max-width: 900px) {
  .newsletter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .newsletter-header { align-items: flex-start; flex-direction: column; gap: 14px; margin-bottom: 24px; }
  .newsletter-header h2 { font-size: 27px; }
  .newsletter-header p { margin-top: 12px; font-size: 16px; }
  .newsletter-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .newsletter-card-content { padding: 23px 22px 22px; }
}

.skills-section, .connections-section { margin-top: var(--gap); }
.skills-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px 28px; }
.skill-card { min-width: 0; }
.skill-card > a { display: block; color: var(--ink); text-decoration: none; }
.skill-icon { display: block; width: 80px; height: auto; max-width: 100%; border-radius: 18px; transition: transform 180ms; }
.skill-card > a:hover .skill-icon { transform: translateY(-4px); }
.skill-card h3 { margin-top: 14px; font-size: 17px; line-height: 1.5; letter-spacing: -.25px; overflow-wrap: anywhere; }
.skill-card > a:hover h3 { text-decoration: underline; text-underline-offset: 5px; }
.skill-category { margin-top: 6px; color: var(--muted); font-size: 13px; }
.skill-description { margin-top: 10px; font-size: 16px; line-height: 1.7; }
@media (min-width: 901px) {
  .connections-section .skills-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .skills-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .skills-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px 22px; }
  .skill-icon { width: 64px; border-radius: 14px; }
  .skill-card h3 { margin-top: 12px; font-size: 16px; }
  .skill-description { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

.interviews-section { margin-top: var(--gap); }
.interview-card-inner { display: flex; flex-direction: column; width: 100%; overflow: hidden; border-radius: 6px; background: var(--surface); }
.interview-player { position: relative; flex-shrink: 0; aspect-ratio: 16 / 9; background: var(--ink); }
.interview-player iframe { position: absolute; inset: 0; display: block; width: 100%; height: 100%; border: 0; }
.interview-card .interview-channel { margin: 0 0 12px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.interview-card .newsletter-card-footer { flex-wrap: wrap; }
.interview-card .newsletter-card-footer a { color: var(--accent); text-decoration: none; }
.interview-card .newsletter-card-footer a:hover { text-decoration: underline; }