/* Homepage: profile column on the left, CV "paper" pinned on the right.
   Palette taken from the portrait: oxford-shirt blue canvas, blazer navy ink. */
:root {
  --canvas: #e9eff7;
  --ink: #16204a;
  --ink-soft: #4b5677;
  --rule: #c9d3e3;
  --link: #22449c;
  --paper: #ffffff;
  --paper-ink: #1b1d24;
  --paper-muted: #50566a;
  --paper-rule: #1b1d24;
  --paper-link: #22449c;
  --shadow: 0 1px 2px rgba(22, 32, 74, 0.08), 0 14px 36px -10px rgba(22, 32, 74, 0.22);
  --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  color-scheme: light;
}

[data-theme="dark"] {
  --canvas: #0f1530;
  --ink: #e6ebf6;
  --ink-soft: #a3adc6;
  --rule: #28325a;
  --link: #a9c4f0;
  --paper: #182044;
  --paper-ink: #e6ebf6;
  --paper-muted: #aab3c9;
  --paper-rule: #7d89ad;
  --paper-link: #a9c4f0;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 18px 44px -14px rgba(0, 0, 0, 0.65);
  color-scheme: dark;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; border-radius: 2px; }

/* ---------- Page grid ---------- */
.shell {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(420px, 42vw, 580px);
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
}

.profile { max-width: 640px; padding: 28px 0 56px; }

/* ---------- Top row: section links + theme toggle ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(32px, 6vh, 64px);
  font-size: 15px;
}
.topbar nav { display: flex; gap: 20px; flex-wrap: wrap; }
.topbar nav a { color: var(--ink-soft); text-decoration: none; }
.topbar nav a:hover { color: var(--ink); text-decoration: underline; }
.theme-toggle {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--rule);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}
.theme-toggle:hover { border-color: var(--ink-soft); }
.theme-toggle svg { width: 18px; height: 18px; }

/* ---------- Intro ---------- */
.intro-head {
  display: grid;
  grid-template-columns: 148px minmax(0, 1fr);
  gap: 28px;
  align-items: end;
  margin-bottom: 28px;
}
.portrait {
  display: block;
  width: 148px;
  height: 185px;
  object-fit: cover;
  border-radius: 4px;
  background: #fff;
}
.intro-head h1 {
  margin: 0 0 6px;
  font-size: clamp(34px, 4.2vw, 48px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.role { margin: 0 0 14px; color: var(--ink-soft); }
.contact-links { display: flex; flex-wrap: wrap; gap: 6px 20px; margin: 0; padding: 0; list-style: none; font-size: 15.5px; }

.profile .about { margin-top: 0; }
.about p { margin: 0 0 1em; }

/* ---------- Sections ---------- */
.profile section { margin-top: 56px; scroll-margin-top: 24px; }
.profile h2 {
  margin: 0 0 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.pub h3 { margin: 0 0 6px; font-size: 18px; font-weight: 600; line-height: 1.35; }
.pub h3 a { color: var(--ink); text-decoration: none; }
.pub h3 a:hover { text-decoration: underline; }
.pub p { margin: 0 0 4px; }
.pub .authors { color: var(--ink-soft); }
.pub .authors strong { color: var(--ink); font-weight: 600; }
.pub .venue { font-weight: 600; color: var(--link); }
.pub .summary { margin-top: 8px; color: var(--ink-soft); font-size: 16px; }
.pub .pub-links { display: flex; gap: 18px; margin-top: 10px; font-size: 15.5px; }

.pub-note { margin: 28px 0 0; color: var(--ink-soft); font-size: 16px; }

.posts { margin: 0; padding: 0; list-style: none; }
.posts li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
}
.posts li:first-child { border-top: 0; padding-top: 0; }
.posts time { color: var(--ink-soft); font-size: 15px; font-variant-numeric: tabular-nums; padding-top: 1px; }
.posts .post-title { font-weight: 600; color: var(--ink); text-decoration: none; }
.posts .post-title:hover { text-decoration: underline; }
.posts p { margin: 4px 0 6px; color: var(--ink-soft); font-size: 16px; }
.posts .alt-lang { font-size: 15px; }

.page-foot { margin-top: 64px; color: var(--ink-soft); font-size: 14px; }
.page-foot a { color: inherit; }

/* ---------- CV panel ---------- */
.cv {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  scroll-margin-top: 0;
}
.cv-bar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 15px;
}
.cv-bar h2 { margin: 0; font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 17px; color: var(--ink-soft); }
.cv-bar a { font-weight: 600; }

.cv-paper {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
  background: var(--paper);
  color: var(--paper-ink);
  box-shadow: var(--shadow);
  border-radius: 2px;
  padding: 40px 40px 44px;
  font-family: var(--serif);
  font-size: 14.5px;
  line-height: 1.45;
}
.cv-paper a { color: var(--paper-link); }
.cv-paper header { text-align: center; }
.cv-paper h1 { margin: 0 0 6px; font-size: 27px; font-weight: 700; line-height: 1.1; letter-spacing: 0; }
.cv-paper .contact { display: flex; flex-wrap: wrap; justify-content: center; gap: 2px 18px; font-size: 13px; color: var(--paper-muted); }
.cv-paper section { margin-top: 20px; }
.cv-paper h3 {
  margin: 0 0 8px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--paper-rule);
  font-size: 17px;
  font-weight: 700;
  font-variant-caps: small-caps;
  letter-spacing: 0.03em;
  line-height: 1.2;
}
.cv-paper .entry { margin: 0 0 12px; }
.cv-paper .entry:last-child { margin-bottom: 0; }
.cv-paper .entry-heading,
.cv-paper .entry-subheading { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: baseline; }
.cv-paper .entry-title,
.cv-paper .entry-place { font-weight: 700; }
.cv-paper .title-link { font-weight: 700; color: var(--paper-ink); }
.cv-paper .entry-place,
.cv-paper .entry-date { white-space: nowrap; }
.cv-paper .entry-role,
.cv-paper .entry-date { font-style: italic; }
.cv-paper .entry-url { font-size: 13px; }
.cv-paper ul { margin: 4px 0 0; padding-left: 18px; }
.cv-paper li { margin-bottom: 3px; }
.cv-paper .skill-line { margin: 0 0 4px; }

/* ---------- Narrow screens: CV drops below the profile ---------- */
@media (max-width: 960px) {
  .shell { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .profile { max-width: none; padding-bottom: 24px; }
  .cv { position: static; height: auto; padding: 32px 0 48px; }
  .cv-paper { overflow: visible; padding: 28px 22px 32px; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .intro-head { grid-template-columns: 104px minmax(0, 1fr); gap: 18px; align-items: center; }
  .portrait { width: 104px; height: 130px; }
  .posts li { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .cv-paper { padding: 22px 16px 26px; font-size: 14px; }
  .cv-paper .contact { flex-direction: column; align-items: center; }
  .cv-paper .entry-heading,
  .cv-paper .entry-subheading { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .cv-paper .entry-place,
  .cv-paper .entry-date { white-space: normal; }
}

/* ---------- Print: the page prints as the one-page A4 CV (source of cv.pdf) ---------- */
@media print {
  @page { size: A4; margin: 0; }
  html, body { background: #fff; }
  .profile, .cv-bar { display: none !important; }
  .shell { display: block; max-width: none; padding: 0; }
  .cv { position: static; height: auto; padding: 0; display: block; }
  .cv-paper {
    --paper-ink: #111;
    --paper-muted: #111;
    --paper-rule: #111;
    --paper-link: #0563c1;
    overflow: visible;
    box-shadow: none;
    border-radius: 0;
    background: #fff;
    padding: 12.7mm;
    font-family: "Times New Roman", Times, serif;
    font-size: 10.5pt;
    line-height: 1.27;
  }
  .cv-paper h1 { font-size: 23pt; margin-bottom: 1.8mm; line-height: 1; }
  .cv-paper .contact { font-size: 8.8pt; flex-wrap: nowrap; gap: 0; }
  .cv-paper .contact span + span::before { content: "|"; margin: 0 3.2mm; color: #666; }
  .cv-paper section { margin-top: 4.4mm; }
  .cv-paper h3 { font-size: 13.2pt; font-variant-caps: normal; text-transform: uppercase; letter-spacing: 0; line-height: 1; margin-bottom: 1.7mm; padding: 0 1.1mm 1mm; }
  .cv-paper .entry { margin: 0 1.1mm 3.1mm; }
  .cv-paper .entry-heading,
  .cv-paper .entry-subheading { gap: 4mm; }
  .cv-paper .entry-title,
  .cv-paper .entry-place,
  .cv-paper .title-link { font-size: 10.2pt; }
  .cv-paper .entry-url { font-size: 8.8pt; margin-top: 0.35mm; line-height: 1.15; }
  .cv-paper ul { margin: 1mm 0 0 5.5mm; padding-left: 4.2mm; }
  .cv-paper li { margin-bottom: 0.7mm; padding-left: 1mm; }
  .cv-paper .skills { margin: 0 1.1mm; }
  .cv-paper .skill-line { margin: 0 0 0.9mm; }
}