@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Source Serif 4';
  src: url('../fonts/source-serif.woff2') format('woff2');
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #fbfaf7;
  --surface: #ffffff;
  --ink: #24272c;
  --muted: #676d75;
  --line: #e4e5e2;
  --soft: #f1f2ef;
  --accent: #1a3257;
  --accent-soft: #e9eef6;
  --danger: #a1392b;
  --success: #1f6b4a;
  --serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  --shell: 1180px;
  --space: 56px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.65 var(--sans);
}

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

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

h1, h2, h3, h4 { margin: 0; font-weight: 500; line-height: 1.25; }

h1, h2 { font-family: var(--serif); letter-spacing: -0.8px; }

h1 { font-size: clamp(34px, 4.2vw, 52px); letter-spacing: -1.6px; }

h2 { font-size: 28px; }

h3 { font-size: 19px; font-family: var(--sans); letter-spacing: -0.2px; }

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

button { font: inherit; color: inherit; }

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

.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: absolute;
  left: 16px; top: -60px;
  z-index: 100;
  padding: 12px 18px;
  background: var(--accent);
  color: #fff;
  border-radius: 4px;
  transition: top 0.15s ease;
}

.skip-link:focus { top: 12px; }

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

/* Header */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 25;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 0;
  flex-wrap: wrap;
}

.brand {
  font-family: var(--serif);
  font-size: 25px;
  letter-spacing: -0.9px;
  line-height: 1.15;
  display: inline-flex;
  flex-direction: column;
}

.brand > span { color: var(--accent); }

.brand small {
  font: 400 11px/1.4 var(--sans);
  letter-spacing: 0.4px;
  color: var(--muted);
  margin-top: 3px;
}

.brand-small { font-size: 21px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
  font-size: 14px;
}

.site-nav > a { padding: 10px 0; color: var(--muted); }

.site-nav > a:hover,
.site-nav > a.is-active { color: var(--ink); }

.nav-divider { width: 1px; height: 18px; background: var(--line); }

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.language-switch a { padding: 8px 2px; min-height: 40px; display: inline-flex; align-items: center; }

.language-switch a.is-active { color: var(--accent); border-bottom: 2px solid var(--accent); }

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--accent);
}

.social-link svg { width: 18px; height: 18px; stroke: currentColor; stroke-width: 1.6; }

.menu-button {
  display: none;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-left: auto;
}

.menu-icon { display: inline-flex; flex-direction: column; gap: 4px; }

.menu-icon i { width: 16px; height: 1.5px; background: currentColor; display: block; }

/* Hero */

.hero { padding: 64px 0 44px; max-width: 940px; }

.eyebrow,
.section-index {
  font-size: 12px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

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

.hero-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-top: 26px;
  flex-wrap: wrap;
}

.hero-bottom p { max-width: 460px; font-size: 16px; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--accent);
  border: 0;
  background: none;
  text-align: left;
}

.text-link span { transition: transform 0.15s ease; }

.text-link:hover span { transform: translate(2px, -2px); }

/* Sections */

.content-section {
  padding: var(--space) 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.section-heading .section-index { margin-bottom: 8px; }

.section-note { margin-bottom: 18px; }

.caption { font-size: 13px; color: var(--muted); }

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

.badge {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 11px;
  letter-spacing: 0.6px;
  color: var(--muted);
  vertical-align: 1px;
}

/* Tabs */

.tabs { display: flex; gap: 20px; }

.tabs button {
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 10px 0;
  min-height: 44px;
  font-size: 14px;
  color: var(--muted);
}

.tabs button.is-active { color: var(--accent); border-color: var(--accent); }

.tab-panel[hidden] { display: none; }

/* Events */

.event-list { display: flex; flex-direction: column; }

.event-row {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.event-row:first-child { border-top: 0; }

.event-date {
  flex: 0 0 auto;
  min-width: 82px;
  text-align: center;
  border-right: 1px solid var(--line);
  padding-right: 26px;
}

.event-date span {
  display: block;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--muted);
}

.event-date strong {
  display: block;
  font: 400 44px/1.15 var(--serif);
  color: var(--accent);
  letter-spacing: -1.5px;
}

.event-body { flex: 1; min-width: 0; }

.card-meta {
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.event-body h3 { font-family: var(--serif); font-size: 24px; margin-bottom: 8px; }

.event-body p { font-size: 14px; }

.event-location { margin-top: 6px; font-size: 14px; }

.event-row.is-past .event-date strong { color: var(--muted); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 12px 20px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  flex: 0 0 auto;
}

.button:hover { background: #14284a; border-color: #14284a; }

.button-muted {
  background: transparent;
  border-color: var(--line);
  color: var(--muted);
}

.empty-row {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 0;
}

.calendar-symbol { font-size: 26px; color: var(--accent); }

.empty-row h3 { font-size: 17px; }

.empty-row p { font-size: 14px; margin-top: 4px; }

.empty-state {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.empty-state h2,
.empty-state h3 { font-family: var(--serif); font-size: 24px; margin-bottom: 12px; }

/* Video */

.video-feature-layout {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 34px;
  align-items: start;
}

.media-frame {
  position: relative;
  display: block;
  border-radius: 4px;
  overflow: hidden;
  background: var(--soft);
}

.media-frame img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; }

.play-button {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent);
  font-size: 14px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.16);
}

.duration {
  position: absolute;
  right: 10px; bottom: 10px;
  padding: 3px 8px;
  border-radius: 3px;
  background: var(--surface);
  font-size: 12px;
  color: var(--ink);
}

.video-card > .card-meta { margin-top: 16px; }

.video-card h3 { font-size: 19px; line-height: 1.45; margin-bottom: 8px; }

.video-side-list { display: flex; flex-direction: column; }

.video-side-item {
  display: grid;
  grid-template-columns: 152px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.video-side-item:first-child { border-top: 0; padding-top: 0; }

.video-side-thumb img { aspect-ratio: 16 / 9; object-fit: cover; border-radius: 4px; }

.video-side-item h3 { font-size: 17px; line-height: 1.45; margin-bottom: 6px; }

.channel-link {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.channel-link small { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }

.channel-icon {
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  flex: 0 0 auto;
}

.channel-link > span:last-child { margin-left: auto; color: var(--accent); }

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 34px;
}

.video-title { font-family: var(--serif); font-size: 22px; margin-bottom: 8px; }

/* Articles */

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.article-card { display: flex; flex-direction: column; }

.article-image img {
  aspect-ratio: 1.55;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 16px;
  width: 100%;
}

.article-card h3 { font-size: 20px; line-height: 1.4; margin-bottom: 8px; }

.article-card h3 a:hover { color: var(--accent); }

.article-card p { font-size: 14px; margin-bottom: 12px; }

.article-card .caption { margin-top: auto; }

/* Profile teaser + page */

.profile-teaser {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.profile-teaser h2 { font-size: 34px; }

.profile-teaser h2 small {
  display: block;
  font: 400 13px/1.6 var(--sans);
  letter-spacing: 0;
  color: var(--muted);
  margin-top: 8px;
}

.profile-teaser p { margin-bottom: 10px; }

.profile-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 44px;
  align-items: start;
}

.portrait-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  aspect-ratio: 4 / 5;
  background: var(--soft);
  border-radius: 6px;
  padding: 20px;
  text-align: center;
}

.portrait-initials { font: 400 54px/1 var(--serif); color: var(--accent); }

.profile-sections section { margin-bottom: 32px; }

.profile-sections h2 { font-size: 24px; margin-bottom: 10px; }

.profile-links { display: flex; flex-direction: column; align-items: flex-start; }

/* Activities */

.activity-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.activity-card p { font-size: 14px; margin: 12px 0 6px; }

.activity-image {
  position: relative;
  display: block;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 4px;
  background: var(--soft);
}

.activity-image img { width: 100%; height: 100%; object-fit: cover; }

.activity-type {
  position: absolute;
  left: 10px; top: 10px;
  padding: 3px 7px;
  background: var(--surface);
  border-radius: 3px;
  font-size: 11px;
  letter-spacing: 0.5px;
}

.activity-card .play-button { width: 38px; height: 38px; font-size: 12px; }

/* Page header + details */

.page-header { padding: 48px 0 34px; max-width: 760px; }

.page-header h1 { margin-bottom: 14px; }

.page-header h1 small {
  display: block;
  font: 400 14px/1.6 var(--sans);
  letter-spacing: 0;
  color: var(--muted);
  margin-top: 8px;
}

.page-header p { font-size: 16px; margin-bottom: 10px; }

.detail { padding: 32px 0 64px; }

.back-link { margin-bottom: 22px; }

.detail-header { max-width: 820px; margin-bottom: 34px; }

.detail-header-narrow { max-width: 700px; }

.detail-header h1 { margin: 12px 0 14px; }

.detail-lead { font-size: 17px; }

.detail-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: start;
}

.detail-main section { margin-bottom: 38px; }

.detail-main h2 { font-size: 24px; margin-bottom: 14px; }

.detail-aside figure { margin: 0 0 14px; }

.detail-aside img { border-radius: 4px; box-shadow: 0 1px 18px rgba(0, 0, 0, 0.08); }

.meta-list { margin: 0 0 20px; }

.meta-list > div {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.meta-list > div:last-child { border-bottom: 1px solid var(--line); }

.meta-list dt { font-size: 13px; letter-spacing: 0.6px; text-transform: uppercase; color: var(--muted); }

.meta-list dd { margin: 0; font-size: 15px; }

.registration-cta {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 24px;
  background: var(--surface);
}

.registration-cta h2 { font-size: 21px; margin-bottom: 8px; }

.registration-cta p { margin-bottom: 14px; font-size: 14px; }

.article-detail .detail-header { margin-inline: auto; text-align: left; }

.article-cover { margin: 0 0 32px; }

.article-cover img { width: 100%; max-height: 440px; object-fit: cover; border-radius: 4px; }

.prose { max-width: 700px; }

.prose p { font-size: 17px; margin-bottom: 18px; color: #3c4148; }

.prose .caption { font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 16px; }

.related { margin-top: 52px; border-top: 1px solid var(--line); padding-top: 32px; }

.related h2 { font-size: 24px; margin-bottom: 22px; }

.related .article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* Forms */

.registration { max-width: 720px; }

.form { margin-top: 10px; }

.field { margin-bottom: 22px; }

.field label {
  display: block;
  font-size: 14px;
  margin-bottom: 7px;
}

.field input {
  width: 100%;
  min-height: 48px;
  padding: 11px 14px;
  border: 1px solid #cfd3d8;
  border-radius: 4px;
  background: var(--surface);
  font: 400 16px/1.5 var(--sans);
  color: var(--ink);
}

.field input:focus { border-color: var(--accent); outline: 2px solid var(--accent-soft); }

.field.has-error input { border-color: var(--danger); }

.field-error { display: block; margin-top: 6px; font-size: 13px; color: var(--danger); }

.field-help { display: block; margin-top: 6px; font-size: 13px; color: var(--muted); }

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 4px 0 22px;
  font-size: 14px;
  color: var(--muted);
}

.checkbox input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--accent); }

.checkbox.has-error { color: var(--danger); }

.notice {
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  background: var(--surface);
  padding: 24px;
}

.notice h2 { font-size: 22px; margin-bottom: 10px; }

.notice p { margin-bottom: 10px; font-size: 15px; }

.notice-success { border-left-color: var(--success); }

.notice-warning { border-left-color: var(--danger); }

.notice .button { margin-top: 10px; }

/* Footer */

.site-footer { border-top: 1px solid var(--line); padding: 34px 0; }

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-inner p { font-size: 13px; }

.footer-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--muted);
}

.footer-meta a { text-decoration: underline; text-underline-offset: 3px; }

.error-page { padding-bottom: 90px; }

/* Responsive */

@media (max-width: 900px) {
  .video-feature-layout { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail-layout { grid-template-columns: 1fr; }
  .detail-aside { max-width: 420px; }
  .profile-layout { grid-template-columns: 1fr; }
  .activity-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  :root { --space: 40px; }

  .site-shell { width: min(100% - 36px, var(--shell)); }

  .header-inner { padding: 14px 0; gap: 14px; }

  .brand { font-size: 23px; }

  .menu-button { display: inline-flex; }

  .site-nav {
    display: none;
    flex-basis: 100%;
    order: 3;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    margin: 0;
    padding: 12px 0 4px;
    border-top: 1px solid var(--line);
    font-size: 16px;
  }

  .site-nav.is-open { display: flex; }

  .site-nav > a { min-height: 44px; display: inline-flex; align-items: center; }

  .nav-divider { display: none; }

  .language-switch { padding-top: 4px; }

  .social-link { width: 44px; height: 44px; }

  .hero { padding: 36px 0 30px; }

  .hero-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }

  .page-header { padding: 36px 0 26px; }

  .event-row { flex-wrap: wrap; gap: 18px; }

  .event-date { border-right: 0; border-bottom: 1px solid var(--line); padding: 0 0 12px; display: flex; align-items: baseline; gap: 10px; min-width: 0; }

  .event-date strong { font-size: 30px; }

  .event-date span { display: inline; }

  .event-row .button { width: 100%; }

  .article-grid,
  .related .article-grid,
  .activity-grid,
  .video-grid { grid-template-columns: 1fr; }

  .activity-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }

  .video-side-item { grid-template-columns: 128px 1fr; gap: 14px; }

  .profile-teaser { grid-template-columns: 1fr; gap: 20px; }

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }

  .detail { padding: 24px 0 48px; }

  .meta-list > div { grid-template-columns: 1fr; gap: 4px; }
}

@media (max-width: 420px) {
  .activity-grid { grid-template-columns: 1fr; }

  .video-side-item { grid-template-columns: 1fr; }

  .video-side-thumb img { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}