/* ---------------------------------------------------------
   Tokens
--------------------------------------------------------- */
:root {
  --bg: #fcfaf9;
  --bg-alt: #f4ecec;
  --ink: #221d1f;
  --ink-soft: #5e5155;
  --ink-faint: #99898d;
  --accent: #b8697a;
  --accent-soft: #f3e1e5;
  --rule: #ebdfdf;

  --display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --content-width: 760px;
  --gutter: clamp(24px, 6vw, 64px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--bg);
  padding: 12px 20px;
  z-index: 100;
}
.skip-link:focus {
  left: var(--gutter);
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------------------------------------------------------
   Header
--------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--gutter);
  background: rgba(252, 250, 249, 0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--rule);
}

.wordmark {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.wordmark img {
  display: block;
  border-radius: 8px;
}

.site-nav {
  display: flex;
  gap: clamp(16px, 3vw, 28px);
}

.site-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition:
    color 0.15s ease,
    border-color 0.15s ease;
}

.site-nav a:hover {
  color: var(--ink);
  border-color: var(--accent);
}

/* ---------------------------------------------------------
   Hero
--------------------------------------------------------- */
.hero {
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(64px, 12vw, 140px) var(--gutter) clamp(48px, 8vw, 84px);
}

.hero-kicker {
  font-size: 0.9rem;
  color: var(--accent);
  margin: 0 0 18px;
  font-weight: 600;
}

.hero-headline {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  line-height: 1.08;
  margin: 0 0 24px;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.hero-headline span {
  font-style: normal;
  color: var(--ink);
}

.hero-sub {
  max-width: 46ch;
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin: 0 0 36px;
}

.hero-scroll {
  display: inline-block;
  text-decoration: none;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 3px;
}

/* ---------------------------------------------------------
   Sections (shared)
--------------------------------------------------------- */
.section {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: clamp(44px, 8vw, 80px) var(--gutter);
  border-top: 1px solid var(--rule);
}

.section-heading {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.4vw, 1.9rem);
  margin: 0 0 28px;
  letter-spacing: -0.01em;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.resume-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  white-space: nowrap;
}

/* ---------------------------------------------------------
   About
--------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: clamp(24px, 5vw, 48px);
  align-items: start;
}

.about-photo {
  margin: 0;
}

.about-photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 4px;
}

.about-copy p {
  margin: 0 0 16px;
  color: var(--ink-soft);
}

.about-copy p:last-child {
  margin-bottom: 0;
}

.about-copy strong {
  color: var(--ink);
  font-weight: 600;
}

@media (max-width: 560px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-photo {
    max-width: 200px;
  }
}

/* ---------------------------------------------------------
   Experience / Education / Research / Community — timeline
--------------------------------------------------------- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--rule);
}

.timeline li {
  position: relative;
  padding: 0 0 22px 22px;
  display: grid;
  grid-template-columns: 172px 1fr;
  grid-template-rows: auto auto auto;
  gap: 4px 14px;
  align-items: baseline;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.timeline-date {
  font-size: 0.82rem;
  color: var(--ink-faint);
  grid-column: 1;
  grid-row: 1 / -1;
  align-self: start;
  font-variant-numeric: tabular-nums;
}

.timeline-role {
  font-weight: 600;
  grid-column: 2;
  grid-row: 1;
  color: var(--ink);
}

.timeline-promo {
  font-weight: 500;
  color: var(--ink-faint);
  font-size: 0.88em;
}

.timeline-org {
  grid-column: 2;
  grid-row: 2;
  color: var(--ink-soft);
  font-size: 0.9rem;
  text-decoration: none;
}

a.timeline-org:hover {
  color: var(--accent);
}

.timeline-bullets {
  grid-column: 2;
  grid-row: 3;
  margin: 10px 0 0;
  padding: 0 0 0 18px;
  list-style: disc;
}

.timeline-bullets li {
  display: list-item;
  padding: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 6px;
}

.timeline-bullets li::before {
  content: none;
}
.timeline-bullets li:last-child {
  margin-bottom: 0;
}

.timeline-item--muted .timeline-role,
.timeline-item--muted .timeline-org {
  opacity: 0.72;
}

@media (max-width: 560px) {
  .timeline li {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .timeline-date {
    grid-column: 1;
    grid-row: 1;
  }
  .timeline-role {
    grid-column: 1;
    grid-row: 2;
  }
  .timeline-org {
    grid-column: 1;
    grid-row: 3;
  }
  .timeline-bullets {
    grid-column: 1;
    grid-row: 4;
  }
}

.group-heading {
  font-family: var(--body);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 16px;
}

.group-heading + .timeline {
  margin-bottom: 36px;
}

/* ---------------------------------------------------------
   Projects — index list
--------------------------------------------------------- */
.project-index {
  list-style: none;
  margin: 0;
  padding: 0;
}

.project-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 18px;
  align-items: center;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
}

.project-row:last-child {
  border-bottom: 1px solid var(--rule);
}

.project-thumb {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 4px;
  background: var(--bg-alt);
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.project-row a.project-thumb:hover img {
  transform: scale(1.05);
}

.project-thumb--soon img {
  opacity: 0.5;
}

.project-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.project-title {
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
}

.project-row a.project-title:hover {
  color: var(--accent);
}

.project-title--soon {
  color: var(--ink-faint);
}

.project-meta {
  font-size: 0.85rem;
  color: var(--ink-faint);
}

@media (max-width: 480px) {
  .project-row {
    grid-template-columns: 60px 1fr;
    gap: 12px;
  }
}

/* ---------------------------------------------------------
   Footer
--------------------------------------------------------- */
.site-footer {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 44px var(--gutter) 88px;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-name {
  font-family: var(--display);
  font-weight: 600;
  margin: 0;
}

.footer-links {
  list-style: none;
  display: flex;
  gap: 22px;
  margin: 0;
  padding: 0;
}

.footer-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.88rem;
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--accent);
}