/* ============================================================
   Linda Wang — personal site
   Tokens, typography, layout, components
   ============================================================ */

:root {
  --tea: #31b3a4;
  --tea-deep: #1e7e74;
  --paper: #f6f2ea;
  --ink: #1a1a1a;
  --muted: #6b6760;
  --rule: #d8d2c4;
  --dark: #161817;
  --cream: #ece7df;

  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; }
a { color: var(--ink); text-decoration: none; }

/* ------- mono helpers ------- */
.mono { font-family: var(--mono); letter-spacing: 0.12em; text-transform: uppercase; font-size: 11px; color: var(--muted); }
.mono-tea { font-family: var(--mono); letter-spacing: 0.16em; text-transform: uppercase; font-size: 11px; color: var(--tea); }

/* ============================================================
   HERO — full-bleed photo with overlay
   ============================================================ */
.hero {
  position: relative;
  height: 760px;
  overflow: hidden;
  background: var(--dark);
  color: var(--cream);
}
.hero__photo {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.7;
  filter: saturate(0.88) contrast(1.04);
}
.hero__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(22,24,23,0.55) 0%, rgba(22,24,23,0.2) 40%, rgba(22,24,23,0.9) 100%);
}

/* utility bar — top nav */
.utility {
  position: absolute; top: 0; left: 0; right: 0;
  padding: 32px 72px;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--cream);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
}
.utility__nav { display: flex; gap: 28px; }
.utility__nav a { color: rgba(236,231,223,0.65); font-family: var(--mono); }
.utility__nav a.active { color: var(--cream); border-bottom: 1px solid var(--tea); padding-bottom: 4px; }
.utility__nav a:hover { color: var(--cream); }

/* brand mark — circle logo + wordmark */
.utility__brand,
.topnav__brand { display: inline-flex; align-items: center; gap: 12px; color: var(--cream); text-decoration: none; }
.utility__brand:hover,
.topnav__brand:hover { color: var(--cream); }
.utility__logo,
.topnav__logo { width: 28px; height: 28px; flex-shrink: 0; display: block; }
.utility__logo circle,
.topnav__logo circle { transition: filter 0.3s ease; }
.utility__brand:hover .utility__logo circle,
.topnav__brand:hover .topnav__logo circle { filter: brightness(1.1); }

/* hero content */
.hero__inner {
  position: absolute; left: 72px; right: 72px; bottom: 64px;
  display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: end;
}
.hero__chips { display: flex; gap: 8px; margin-bottom: 22px; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em;
  color: var(--cream); text-transform: uppercase;
}
.chip__dot { width: 6px; height: 6px; border-radius: 999px; background: var(--tea); display: inline-block; }

.hero__title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 116px;
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin: 0;
  color: var(--cream);
  text-wrap: balance;
  max-width: 980px;
}
.hero__title em { font-style: italic; color: var(--tea); }
.hero__title .dot { color: var(--tea); font-style: normal; }
.hero__eyebrow {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.2em;
  color: var(--cream); text-transform: uppercase;
  margin-top: 22px;
  opacity: 0.75;
}

/* profile card on hero right */
.profile-card {
  background: rgba(15,16,15,0.55);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  padding: 22px;
}
.profile-card img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 14px;
  filter: grayscale(0.15) contrast(1.02);
}
.profile-card__label {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.16em;
  color: var(--tea); text-transform: uppercase;
  margin-bottom: 6px;
}
.profile-card__email { font-family: var(--serif); font-size: 17px; color: var(--cream); }
.profile-card__status { font-family: var(--serif); font-size: 16px; line-height: 1.45; color: var(--cream); }
.profile-card__links {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 14px; padding-top: 12px;
  display: flex; gap: 14px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
}
.profile-card__links a { color: var(--tea); }

.hero__caption {
  position: absolute; bottom: 22px; right: 72px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em;
  color: rgba(236,231,223,0.5);
}

/* hero variant — short, for sub-pages */
.hero--short { height: 360px; }
.hero--short .hero__inner { grid-template-columns: 1fr; bottom: 56px; }
.hero--short .hero__title { font-size: 92px; }

/* ============================================================
   TOP NAV — for sub-pages without a hero
   ============================================================ */
.topnav {
  background: var(--dark);
  color: var(--cream);
  padding: 24px 72px;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
}
.topnav nav { display: flex; gap: 28px; }
.topnav nav a { color: rgba(236,231,223,0.65); font-family: var(--mono); }
.topnav nav a.active { color: var(--cream); border-bottom: 1px solid var(--tea); padding-bottom: 4px; }
.topnav nav a:hover { color: var(--cream); }

/* ============================================================
   NOTES — reverse-chronological log
   ============================================================ */
.note-year {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--tea);
  text-transform: uppercase;
  padding: 28px 0 10px;
  margin-top: 12px;
  border-bottom: 1px solid var(--rule);
}
.note-year:first-child { padding-top: 0; margin-top: 0; }
.note {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.note__date {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}
.note__body {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
}
.note__body a {
  color: var(--ink);
  border-bottom: 1px solid var(--tea);
  padding-bottom: 1px;
}
.note__body a:hover { color: var(--tea-deep); }

/* ============================================================
   PAGE BODY
   ============================================================ */
.page { max-width: 100%; }

.lede {
  padding: 80px 72px 0;
}
.lede p {
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  max-width: 980px;
  text-wrap: pretty;
}
.lede a { color: var(--ink); border-bottom: 1px solid var(--tea); padding-bottom: 1px; }
.lede a:hover { color: var(--tea-deep); }

/* ------- numbered sections ------- */
.section { padding: 64px 72px 0; }
.section__inner {
  border-top: 1px solid var(--rule);
  padding: 40px 0 0;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
}
.section__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  padding-top: 6px;
  text-transform: uppercase;
}
.section__num span { color: var(--tea); display: block; margin-bottom: 4px; }

.prose { font-size: 19px; line-height: 1.55; color: #3a3833; max-width: 760px; }
.prose p { margin: 0 0 18px; }
.prose p:last-child { margin-bottom: 0; }
.prose a, .lede a { text-decoration: none; }
.prose a { color: var(--ink); border-bottom: 1px solid var(--tea); }
.prose a:hover { color: var(--tea-deep); }
.prose em { font-style: italic; }

/* ------- timeline / career log ------- */
.timeline { margin-top: 40px; font-family: var(--mono); font-size: 13px; }
.timeline__row {
  display: grid;
  grid-template-columns: 110px 220px 1fr 80px;
  gap: 24px;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule);
  align-items: center;
}
.timeline__row:first-child { border-top: 1px solid var(--rule); }
.timeline__row--current { background: rgba(49,179,164,0.05); }
.timeline__year { color: var(--tea); }
.timeline__place { color: var(--ink); font-weight: 500; }
.timeline__role { color: var(--muted); }
.timeline__tag {
  text-align: right;
}
.now-pill {
  font-size: 9px; letter-spacing: 0.16em;
  color: var(--tea);
  padding: 3px 6px;
  border: 1px solid var(--tea);
  border-radius: 3px;
}

/* ============================================================
   PHOTO GRID — Elsewhere
   ============================================================ */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-top: 28px;
}
.photo-grid figure {
  margin: 0;
  position: relative;
  overflow: hidden;
}
.photo-grid figure img {
  width: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(0.08);
  transition: filter 0.4s ease, transform 0.6s ease;
}
.photo-grid figure:hover img { filter: grayscale(0); transform: scale(1.02); }
.photo-grid figcaption {
  position: absolute; left: 10px; bottom: 8px;
  color: #fff;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em;
  text-transform: uppercase;
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}
.photo-grid .span-2 { grid-column: span 2; }
.photo-grid .span-3 { grid-column: span 3; }
.photo-grid .tall { grid-row: span 2; }
.photo-grid .h-half img { height: 210px; }
.photo-grid .h-full img { height: 440px; }

/* ============================================================
   PUBLICATIONS — dark band
   ============================================================ */
.pubs {
  background: var(--dark);
  color: var(--cream);
  padding: 88px 72px;
}
.pubs__head {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
  margin-bottom: 44px;
}
.pubs__head .section__num { color: var(--tea); }
.pubs__head .section__num span { color: var(--tea); }
.pubs__title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 64px;
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1;
  color: var(--cream);
}
.pubs__title em { font-style: italic; color: var(--tea); }

/* featured paper */
.pub-featured {
  margin-left: 172px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  border: 1px solid rgba(49,179,164,0.45);
  border-radius: 14px;
  padding: 28px;
  background: linear-gradient(135deg, rgba(49,179,164,0.10), rgba(49,179,164,0.02));
  margin-bottom: 28px;
}
.pub-featured__tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.16em;
  color: var(--tea); text-transform: uppercase;
  margin-bottom: 14px;
}
.pub-featured__tag .pulse {
  width: 7px; height: 7px; border-radius: 999px;
  background: var(--tea);
  box-shadow: 0 0 0 4px rgba(49,179,164,0.2);
}
.pub-featured h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 38px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--cream);
  text-wrap: balance;
}
.pub-featured__authors {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  line-height: 1.55;
  color: rgba(236,231,223,0.78);
  margin: 16px 0 0;
}
.pub-featured__authors strong { color: var(--cream); font-style: normal; }
.pub-featured__cta { display: flex; gap: 10px; margin-top: 20px; }
.btn {
  background: var(--tea); color: var(--dark);
  padding: 10px 16px; border-radius: 999px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  text-decoration: none; text-transform: uppercase; font-weight: 600;
}
.btn--ghost {
  background: transparent;
  border: 1px solid rgba(236,231,223,0.25);
  color: var(--cream);
}
.btn:hover { background: var(--cream); color: var(--dark); }
.btn--ghost:hover { border-color: var(--tea); color: var(--tea); }

.pub-featured__abstract {
  background: rgba(0,0,0,0.35);
  border-radius: 8px;
  padding: 18px;
  font-family: var(--mono); font-size: 11px; line-height: 1.7;
  color: rgba(236,231,223,0.78);
  border: 1px solid rgba(255,255,255,0.06);
}
.pub-featured__abstract .label { color: var(--tea); margin-bottom: 8px; display: block; }
.pub-featured__abstract .meta { color: rgba(236,231,223,0.45); margin-top: 10px; display: block; }

/* paper list */
.pub-list { margin-left: 172px; }
.pub-row {
  display: grid;
  grid-template-columns: 70px 1fr 200px;
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  align-items: baseline;
}
.pub-row__year {
  font-family: var(--serif);
  font-size: 28px;
  color: var(--tea);
  line-height: 1;
}
.pub-row h4 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.28;
  margin: 0;
  color: var(--cream);
  letter-spacing: -0.005em;
  text-wrap: balance;
}
.pub-row__authors {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: rgba(236,231,223,0.6);
  margin-top: 6px;
}
.pub-row__meta {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.14em;
  color: rgba(236,231,223,0.55);
  text-transform: uppercase;
  text-align: right;
}
.pub-row__meta a { color: var(--tea); display: inline-block; margin-top: 6px; }
.pub-row__meta a:hover { color: var(--cream); }

.pubs__more {
  margin: 22px 0 0 172px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: rgba(236,231,223,0.6);
}
.pubs__more a { color: var(--tea); }

/* ============================================================
   FOOTER / COLOPHON
   ============================================================ */
.colophon {
  margin: 100px 72px 0;
  border-top: 2px solid var(--ink);
  padding: 22px 0 80px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.colophon__heading { color: var(--tea); }
.colophon__body { margin-top: 6px; text-transform: none; letter-spacing: 0; font-size: 14px; color: var(--ink); font-family: var(--serif); }
.colophon__links { display: flex; flex-wrap: wrap; gap: 14px; }
.colophon__links a { color: var(--ink); border-bottom: 1px solid var(--tea); padding-bottom: 1px; }
.colophon__links a:hover { color: var(--tea-deep); }
.colophon__right { text-align: right; }
.colophon--two { grid-template-columns: 1fr auto 1fr; align-items: center; }
.colophon__stamp { display: flex; justify-content: center; align-items: center; }
.colophon__stamp svg { width: 96px; height: 96px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .utility { padding: 24px 28px; font-size: 10px; gap: 18px; }
  .utility__nav { gap: 18px; }
  .hero { height: 660px; }
  .hero__inner { left: 28px; right: 28px; bottom: 36px; grid-template-columns: 1fr; gap: 24px; }
  .hero__title { font-size: 72px; }
  .hero__caption { right: 28px; }
  .lede { padding: 56px 28px 0; }
  .lede p { font-size: 22px; }
  .section { padding: 48px 28px 0; }
  .section__inner { grid-template-columns: 1fr; gap: 18px; }
  .timeline__row { grid-template-columns: 90px 1fr; row-gap: 4px; padding: 14px 0; }
  .timeline__role { grid-column: 1 / -1; color: var(--muted); }
  .timeline__tag { grid-column: 1 / -1; text-align: left; }
  .pubs { padding: 56px 28px; }
  .pubs__head { grid-template-columns: 1fr; gap: 12px; margin-bottom: 28px; }
  .pubs__title { font-size: 42px; }
  .pub-featured, .pub-list, .pubs__more { margin-left: 0; }
  .pub-featured { grid-template-columns: 1fr; padding: 22px; }
  .pub-featured h3 { font-size: 28px; }
  .pub-row { grid-template-columns: 60px 1fr; }
  .pub-row__meta { grid-column: 1 / -1; text-align: left; }
  .photo-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .photo-grid .span-2, .photo-grid .span-3 { grid-column: span 2; }
  .photo-grid .tall { grid-row: auto; }
  .photo-grid .h-half img, .photo-grid .h-full img { height: 200px; }
  .colophon { margin: 56px 28px 0; grid-template-columns: 1fr; gap: 28px; padding: 22px 0 56px; }
  .colophon__right { text-align: left; }
  .topnav { padding: 18px 28px; font-size: 10px; gap: 18px; }
  .topnav nav { gap: 18px; }
  .note { grid-template-columns: 80px 1fr; gap: 16px; }
  .colophon--two { grid-template-columns: 1fr; }
  .colophon__stamp svg { width: 72px; height: 72px; }
  .utility__brand .utility__brand-text,
  .topnav__brand .topnav__brand-text { display: none; }
}

@media (max-width: 600px) {
  /* Hero — phone sizing */
  .hero { height: auto; min-height: 560px; padding-bottom: 28px; }
  .hero__inner {
    position: relative;
    z-index: 2;
    padding: 100px 20px 0;
    left: auto; right: auto; bottom: auto;
    gap: 20px;
  }
  .utility { z-index: 3; }
  .hero__title { font-size: 44px; letter-spacing: -0.02em; }
  .hero__eyebrow { font-size: 10px; letter-spacing: 0.15em; margin-top: 16px; }
  .hero__chips { gap: 6px; margin-bottom: 16px; }
  .chip { font-size: 9px; padding: 4px 8px; }

  /* Utility / topnav — drop the right-side edition stamp */
  .utility, .topnav { padding: 16px 20px; gap: 10px; }
  .utility > div:last-child,
  .topnav > div:last-child { display: none; }
  .utility__nav, .topnav nav { gap: 14px; font-size: 10px; }

  /* Profile card — compact on phone */
  .profile-card { padding: 16px; }
  .profile-card img { aspect-ratio: 16/10; }

  /* Body sections */
  .lede { padding: 40px 20px 0; }
  .lede p { font-size: 19px; }
  .section { padding: 36px 20px 0; }
  .prose { font-size: 17px; }
  .timeline { font-size: 12px; }
  .timeline__row { grid-template-columns: 72px 1fr; gap: 12px; }

  /* Publications */
  .pubs { padding: 40px 20px; }
  .pubs__title { font-size: 32px; }
  .pub-featured h3 { font-size: 22px; }
  .pub-featured__authors { font-size: 14px; }
  .pub-featured__cta { flex-wrap: wrap; }
  .pub-row { grid-template-columns: 50px 1fr; gap: 14px; }
  .pub-row h4 { font-size: 18px; }
  .pub-row__year { font-size: 22px; }

  /* Notes */
  .note { grid-template-columns: 64px 1fr; gap: 12px; }
  .note__body { font-size: 16px; }

  /* Colophon */
  .colophon { margin: 40px 20px 0; padding: 18px 0 40px; }
}