:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --text: #1a1c20;
  --muted: #5d6169;
  --line: #e2ded5;
  --accent: #c2410c;
  --accent-soft: #fbe5d6;
  --tag-bg: #efebe3;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.04), 0 8px 24px rgb(0 0 0 / 0.05);

  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Chivo", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius: 14px;
  --max: 1080px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1115;
    --surface: #171a20;
    --text: #e9e7e2;
    --muted: #9aa0aa;
    --line: #262a33;
    --accent: #fb923c;
    --accent-soft: #3a2416;
    --tag-bg: #1f232b;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1115;
  --surface: #171a20;
  --text: #e9e7e2;
  --muted: #9aa0aa;
  --line: #262a33;
  --accent: #fb923c;
  --accent-soft: #3a2416;
  --tag-bg: #1f232b;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.25);
  color-scheme: dark;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s, color 0.2s;
}

a { color: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.mono { font-family: var(--font-mono); }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 600px) { .container { padding: 0 16px; } }

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  background: var(--accent);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 100;
  text-decoration: none;
}
.skip-link:focus { top: 12px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.site-header.scrolled { border-bottom-color: var(--line); }

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  text-decoration: none;
  letter-spacing: -0.02em;
}
.brand-dot { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0 0 0 auto;
  padding: 0;
}
.nav-links a {
  display: block;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.15s, background-color 0.15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--tag-bg); }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.theme-toggle svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}
.icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun { display: none; }
  :root:not([data-theme="light"]) .icon-moon { display: block; }
}

@media (max-width: 640px) {
  .nav { gap: 8px; }
  .nav-links a { padding: 6px 8px; font-size: 14px; }
  .nav-links li:first-child { display: none; }
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  align-items: center;
  gap: 56px;
  padding-top: 96px;
  padding-bottom: 72px;
}
.hero-photo {
  display: block;
  width: 280px;
  height: auto;
  aspect-ratio: 280 / 373;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--tag-bg);
}
/* The photo column takes width from the headline, so keep it to three lines */
@media (min-width: 861px) {
  .hero .hero-title { font-size: clamp(38px, 4.6vw, 56px); }
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 28px; padding-top: 48px; }
  /* On narrow screens the photo becomes a small circle above the text */
  .hero-photo {
    order: -1;
    width: 112px;
    aspect-ratio: 1;
    object-position: 50% 18%;
    border-radius: 999px;
  }
}
.eyebrow {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.02em;
  margin: 0 0 20px;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(38px, 6.4vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  margin: 0 0 28px;
  max-width: 21ch;
  text-wrap: balance;
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
}
.hero-lede {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 36px;
}
.hero-lede strong { color: var(--text); font-weight: 600; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font: 500 15px/1 var(--font-body);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s, background-color 0.15s, border-color 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--text); color: var(--bg); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--muted); }

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.hero-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
}
.hero-links a:hover { color: var(--text); }
.hero-links svg { width: 18px; height: 18px; fill: currentColor; }

/* Sections */
.section {
  padding-top: 72px;
  padding-bottom: 72px;
  border-top: 1px solid var(--line);
}
.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 36px;
}
.section-num { color: var(--accent); font-size: 14px; }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 4vw, 42px);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0;
}
.section-intro { color: var(--muted); margin: -16px 0 32px; max-width: 60ch; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 56px;
  align-items: start;
}
.about-text p { margin: 0 0 18px; max-width: 62ch; }
.about-text p:last-child { margin-bottom: 0; }

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.stat dt { color: var(--muted); font-size: 13px; line-height: 1.4; }
.stat dd {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
}

.skills {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 56px;
}
.skill-group h3 {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 0 0 12px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.tags li {
  background: var(--tag-bg);
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 14px;
  line-height: 1.5;
}
.tags-sm li { font-size: 12.5px; font-family: var(--font-mono); padding: 2px 8px; }

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .skills { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .skills { grid-template-columns: 1fr; }
}

/* Experience timeline */
.timeline { list-style: none; margin: 0; padding: 0; }
.job {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px dashed var(--line);
}
.job:first-child { padding-top: 0; }
.job:last-child { border-bottom: 0; }
.job-meta p { margin: 0; }
.job-dates { font-size: 13.5px; color: var(--text); }
.job-loc { font-size: 14px; color: var(--muted); }
.job-body h3 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  line-height: 1.3;
}
.job-body .at { color: var(--accent); font-weight: 500; }
.job-sub { color: var(--muted); font-size: 14.5px; margin: 4px 0 0; }
.role-steps { list-style: none; margin: 16px 0 0; padding: 0; }
.role-steps li {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0 16px;
  padding: 0 0 12px 22px;
  max-width: 460px;
}
.role-steps li:last-child { padding-bottom: 0; }
/* Dot for each role, joined by a line */
.role-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-sizing: border-box;
}
.role-steps li::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 19px;
  bottom: -6px;
  width: 1px;
  background: var(--line);
}
.role-steps li:first-child::before { background: var(--accent); }
.role-steps li:last-child::after { display: none; }
.role-title { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
.role-dates { color: var(--muted); font-size: 12.5px; white-space: nowrap; }
@media (max-width: 520px) {
  .role-dates { flex-basis: 100%; }
}
.job-points { margin: 14px 0 0; padding-left: 18px; }
.job-points li { margin-bottom: 8px; }
.job-points li::marker { color: var(--accent); }

.awards {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
}
.awards li {
  background: var(--accent-soft);
  color: var(--text);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 14px;
}
.awards span { color: var(--accent); }

.resume-cta { margin: 32px 0 0; color: var(--muted); }
.resume-cta a { color: var(--accent); font-weight: 500; text-underline-offset: 3px; }

@media (max-width: 720px) {
  .job { grid-template-columns: 1fr; gap: 8px; }
  .job-meta { display: flex; gap: 12px; flex-wrap: wrap; align-items: baseline; }
}

/* Projects */
.projects {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.project {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.project:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.project-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}
.project h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 0;
}
.project-kind { font-size: 12px; color: var(--muted); white-space: nowrap; }
.project p { margin: 0 0 16px; color: var(--muted); font-size: 15.5px; }
.project .tags { margin-top: auto; }
.project-links { display: flex; gap: 16px; margin-top: 18px; }
.project-links a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
}
.project-links a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* An odd last card spans the full row instead of leaving a gap */
.project:last-child:nth-child(odd) { grid-column: 1 / -1; }

@media (max-width: 760px) {
  .projects { grid-template-columns: 1fr; }
}

.more-projects {
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 4px 20px;
}
.more-projects summary {
  cursor: pointer;
  padding: 14px 0;
  font-weight: 500;
}
.more-projects ul { list-style: none; padding: 0 0 16px; margin: 0; columns: 2; column-gap: 32px; }
.more-projects li { padding: 6px 0; break-inside: avoid; }
.more-projects li a { text-underline-offset: 3px; }
.more-projects li span { color: var(--muted); font-size: 12px; margin-left: 6px; }
@media (max-width: 600px) { .more-projects ul { columns: 1; } }

/* Contact */
.contact-lede { font-size: 19px; color: var(--muted); max-width: 56ch; margin: 0 0 28px; }
.contact-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.contact-email {
  font-family: var(--font-display);
  font-size: clamp(24px, 4.4vw, 44px);
  letter-spacing: -0.02em;
  text-decoration: none;
  overflow-wrap: anywhere;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 100% 2px;
  background-position: 0 100%;
  background-repeat: no-repeat;
}
.contact-email:hover { color: var(--accent); }
.copy-btn { padding: 8px 16px; font-size: 14px; }

/* Footer */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 32px;
  padding-bottom: 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.site-footer p { margin: 0; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }