:root {
  --ink: #121719;
  --muted: #697174;
  --line: #d9dfde;
  --paper: #f4f5f3;
  --white: #fff;
  --accent: #10aeb3;
  --accent-soft: #d9f2f1;
  --rail: 69px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Arial Narrow", "Roboto Condensed", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.rail {
  position: fixed;
  z-index: 20;
  inset: 0 auto 0 0;
  width: var(--rail);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 14px 0;
  border-right: 1px solid var(--line);
  background: var(--white);
}
.rail-pixel-logo { flex: none; display: block; width: 48px; height: 48px; margin: 0; overflow: visible; }
.rail-pixel-logo img { display: block; width: 54px; max-width: none; height: auto; transform: translate(-4px, -10px); clip-path: inset(0 0 12px 0); }
.rail-name { flex: none; display: block; width: 100%; height: 240px; margin-top: -42px; margin-bottom: 82px; color: #090b0d; overflow: hidden; }
.rail-name img { display: block; width: 69px; height: auto; max-width: none; margin: 0 auto; clip-path: inset(54px 3px 0 0); }
.rail-rule { flex: none; width: 1px; height: 74px; margin: 0 0 36px; background: #9fa5a7; }
.rail-glyphs { flex: 0 1 auto; width: 100%; min-height: 0; overflow: hidden; display: flex; flex-direction: column; align-items: center; justify-content: flex-start; padding: 0 14px; }
.glyph-pair { flex: 0 0 21px; width: 100%; height: 21px; display: grid; grid-template-columns: 1fr 1fr; justify-items: center; align-items: center; gap: 9px; font: 400 11px/1 "Microsoft YaHei", "Microsoft JhengHei", "Yu Gothic", "Malgun Gothic", "Segoe UI Symbol", "Arial Unicode MS", serif; }
.glyph-pair i { font-style: normal; }
.socials { flex: none; display: grid; justify-items: center; gap: 26px; margin-top: 36px; padding-top: 0; }
.socials a { color: #111; font-size: 14px; font-weight: 700; }
.socials a:hover, .socials a:focus-visible { color: var(--accent); }

.page { margin-left: var(--rail); }
.topbar {
  height: 102px;
  padding: 0 clamp(28px, 4.2vw, 80px);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.92);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; gap: 10px; align-items: center; font-size: 12px; letter-spacing: .08em; }
.brand span { color: var(--accent); font-weight: 800; }
.brand i { width: 38px; height: 3px; margin-left: 6px; background: var(--accent); }
.topbar nav { display: flex; gap: clamp(18px, 2.8vw, 46px); }
.topbar nav a { color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.topbar nav a:hover, .topbar nav a:focus-visible { color: var(--accent); }

main { overflow: hidden; }
.hero {
  min-height: 770px;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, .82fr);
  gap: clamp(44px, 6vw, 110px);
  align-items: center;
  padding: 76px clamp(28px, 6vw, 112px) 82px;
  position: relative;
}
.hero-compact {
  min-height: 430px;
  grid-template-columns: minmax(0, 820px);
  align-items: center;
  padding-top: 70px;
  padding-bottom: 70px;
}
.hero-compact .hero-copy { position: relative; z-index: 1; }
.hero::after {
  content: "";
  position: absolute;
  right: -13vw;
  bottom: -24vw;
  width: 48vw;
  height: 48vw;
  border: 1px solid rgba(16,174,179,.24);
  border-radius: 50%;
  box-shadow: 0 0 0 5vw rgba(16,174,179,.04), 0 0 0 10vw rgba(16,174,179,.03);
  pointer-events: none;
}
.eyebrow { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 24px; }
.eyebrow span { border: 1px solid var(--line); padding: 6px 10px 5px; color: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; background: rgba(255,255,255,.58); }
.hero h1 { margin: 0; font-size: clamp(74px, 10vw, 176px); line-height: .78; letter-spacing: -.065em; font-weight: 900; }
.hero h1 span, .section-title h2 span, .closing h2 span { color: var(--accent); }
.hero h1.role { margin: 0; font-size: clamp(24px, 2vw, 32px); line-height: 1.1; font-weight: 800; letter-spacing: -.025em; }
.summary { max-width: 730px; margin: 18px 0 0; color: #485052; font-size: clamp(17px, 1.35vw, 22px); line-height: 1.6; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.button { display: inline-flex; justify-content: space-between; min-width: 178px; padding: 14px 16px; border: 1px solid var(--ink); font-size: 12px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.button-primary { color: var(--white); background: var(--ink); }
.button:hover, .button:focus-visible { color: var(--white); border-color: var(--accent); background: var(--accent); }

.portrait-panel { align-self: stretch; display: flex; flex-direction: column; justify-content: center; position: relative; z-index: 1; }
.portrait-frame { position: relative; aspect-ratio: 1; max-width: 520px; margin-left: auto; overflow: hidden; background: #dcded9; }
.portrait-frame::after { content: ""; position: absolute; inset: 0; background: linear-gradient(150deg, transparent 50%, rgba(16,174,179,.18)); mix-blend-mode: multiply; }
.portrait-frame img { display: block; width: 100%; height: 100%; object-fit: cover; filter: grayscale(72%) contrast(1.04); }
.corner { position: absolute; z-index: 2; width: 38px; height: 38px; border-color: var(--accent); }
.corner-a { inset: 14px auto auto 14px; border-top: 2px solid; border-left: 2px solid; }
.corner-b { inset: auto 14px 14px auto; border-right: 2px solid; border-bottom: 2px solid; }
.identity-grid { max-width: 520px; margin-left: auto; display: grid; grid-template-columns: 1fr 1fr; background: var(--ink); color: var(--white); }
.identity-grid div { padding: 16px 18px; border-right: 1px solid #343b3e; border-bottom: 1px solid #343b3e; }
.identity-grid small { display: block; color: #96a1a4; font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.identity-grid strong { font-size: 13px; }

.signal-strip { display: grid; grid-template-columns: repeat(3, 1fr); color: var(--white); background: var(--ink); }
.signal-strip > div { min-height: 190px; padding: 34px clamp(28px, 4vw, 68px); border-right: 1px solid #343b3e; }
.signal-strip span { color: var(--accent); font-size: 10px; font-weight: 800; }
.signal-strip strong { display: block; margin-top: 24px; font-size: 20px; }
.signal-strip p { max-width: 390px; margin: 8px 0 0; color: #aeb6b7; }

.section { padding: 112px clamp(28px, 6vw, 112px); }
.section-title { display: grid; grid-template-columns: minmax(210px, .55fr) minmax(300px, 1fr); column-gap: 50px; margin-bottom: 62px; }
.section-title > p:first-child { margin: 10px 0 0; color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.section-title h2 { grid-column: 2; margin: 0; font-size: clamp(50px, 6.5vw, 100px); line-height: .9; letter-spacing: -.06em; }
.section-lede { grid-column: 2; max-width: 680px; color: var(--muted); font-size: 18px; }

.experience { background: var(--white); }
.timeline { border-top: 1px solid var(--ink); }
.timeline-item { display: grid; grid-template-columns: minmax(210px, .55fr) minmax(0, 1fr); gap: 50px; padding: 42px 0 50px; border-bottom: 1px solid var(--line); }
.time { display: flex; align-items: flex-start; gap: 10px; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.time span::after { content: "—"; margin-left: 10px; }
.time b { color: var(--ink); }
.current .time b { color: var(--accent); }
.job-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.job-heading p { margin: 0 0 5px; color: var(--muted); font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.job-heading h3 { margin: 0; font-size: clamp(27px, 2.5vw, 42px); line-height: 1.08; letter-spacing: -.035em; }
.job-heading > span { padding: 5px 8px; color: var(--accent); border: 1px solid var(--accent); font-size: 9px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; white-space: nowrap; }
.job ul { margin: 0; padding: 0; list-style: none; }
.job li { position: relative; max-width: 920px; margin: 9px 0; padding-left: 20px; color: #40484a; font-size: 17px; }
.job li::before { content: "↳"; position: absolute; left: 0; color: var(--accent); }
.job > p { max-width: 920px; color: #40484a; font-size: 17px; }

.education { background: var(--paper); }
.education-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.education-card { min-height: 290px; padding: 30px; border: 1px solid var(--line); background: var(--white); position: relative; overflow: hidden; }
.education-card::after { content: ""; position: absolute; right: -58px; bottom: -58px; width: 150px; height: 150px; border: 1px solid var(--accent-soft); transform: rotate(45deg); }
.education-card.featured { color: var(--white); background: var(--ink); }
.education-card span { color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.education-card h3 { max-width: 520px; margin: 46px 0 14px; font-size: clamp(28px, 3vw, 48px); line-height: .98; letter-spacing: -.04em; }
.education-card p { max-width: 510px; margin: 0 0 14px; font-weight: 700; }
.education-card small { display: block; max-width: 520px; color: var(--muted); font-size: 14px; }
.featured small { color: #aeb6b7; }
.continuing { margin-top: 70px; border-top: 1px solid var(--ink); }
.continuing > h3 { margin: 0; padding: 22px 0; font-size: 14px; letter-spacing: .06em; text-transform: uppercase; }
.continuing > div { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.continuing article { padding: 28px 28px 28px 0; border-right: 1px solid var(--line); }
.continuing article + article { padding-left: 28px; }
.continuing span { color: var(--accent); font-size: 10px; font-weight: 800; text-transform: uppercase; }
.continuing strong { display: block; margin-top: 18px; font-size: 19px; line-height: 1.25; }
.continuing p { color: var(--muted); font-size: 14px; }

.capabilities { color: var(--white); background: var(--ink); }
.capabilities .section-title > p:first-child { color: var(--accent); }
.capability-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(48px, 7vw, 120px); }
.capability-list { border-top: 1px solid #3d4547; }
.capability-list article { display: grid; grid-template-columns: 46px 1fr; gap: 16px; padding: 30px 0; border-bottom: 1px solid #3d4547; }
.capability-list article > span { color: var(--accent); font-size: 10px; font-weight: 800; }
.capability-list h3 { margin: 0 0 8px; font-size: 25px; }
.capability-list p { max-width: 690px; margin: 0; color: #aeb6b7; }
.stack h3 { margin: 0 0 18px; color: var(--accent); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 46px; }
.tags span { padding: 8px 10px; color: #dfe4e4; border: 1px solid #3d4547; background: #1a2022; font-size: 12px; }
.languages { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid #3d4547; border-left: 1px solid #3d4547; }
.languages div { display: flex; justify-content: space-between; padding: 14px; border-right: 1px solid #3d4547; border-bottom: 1px solid #3d4547; }
.languages span { color: var(--accent); font-size: 12px; font-weight: 800; }

.closing { padding: 120px clamp(28px, 6vw, 112px) 72px; background: var(--white); }
.closing > p { color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.closing h2 { margin: 24px 0 48px; font-size: clamp(44px, 6.6vw, 104px); line-height: .92; letter-spacing: -.065em; }
.availability { display: flex; flex-wrap: wrap; gap: 8px; }
.availability span { padding: 8px 10px; border: 1px solid var(--line); color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.contact-line { display: grid; grid-template-columns: 1.4fr 1fr 1fr; margin-top: 74px; border-top: 1px solid var(--ink); }
.contact-line a { display: flex; justify-content: space-between; padding: 22px 18px 22px 0; border-bottom: 1px solid var(--line); font-size: clamp(15px, 1.4vw, 22px); font-weight: 700; }
.contact-line a + a { padding-left: 18px; border-left: 1px solid var(--line); }
.contact-line a:hover, .contact-line a:focus-visible { color: var(--accent); }

footer { min-height: 96px; padding: 0 clamp(28px, 6vw, 112px); display: flex; align-items: center; justify-content: space-between; gap: 22px; color: #9aa2a4; background: var(--ink); font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
footer a:hover, footer a:focus-visible { color: var(--accent); }

@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; }
  .portrait-panel { display: grid; grid-template-columns: minmax(260px, .9fr) 1.1fr; align-items: end; }
  .portrait-frame { margin: 0; }
  .identity-grid { margin: 0; }
  .capability-layout { grid-template-columns: 1fr; }
  .contact-line { grid-template-columns: 1fr; }
  .contact-line a + a { padding-left: 0; border-left: 0; }
}

@media (max-width: 760px) {
  :root { --rail: 0px; }
  .rail { display: none; }
  .topbar { height: auto; min-height: 78px; padding: 20px; }
  .topbar nav a:not(:last-child) { display: none; }
  .hero { min-height: 0; padding: 64px 20px; }
  .hero-compact { padding-top: 54px; padding-bottom: 54px; }
  .hero > *, .hero-copy, .portrait-panel { min-width: 0; max-width: 100%; }
  .hero h1 { font-size: clamp(62px, 20vw, 78px); }
  .hero h1.role { font-size: clamp(24px, 7vw, 30px); }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; min-width: 0; }
  .portrait-panel { display: block; }
  .portrait-frame { margin-top: 20px; }
  .identity-grid { max-width: none; }
  .signal-strip { grid-template-columns: 1fr; }
  .signal-strip > div { min-height: 0; border-right: 0; border-bottom: 1px solid #343b3e; }
  .section, .closing { padding: 78px 20px; }
  .section-title { display: block; margin-bottom: 42px; }
  .section-title h2 { margin-top: 18px; font-size: 15vw; }
  .timeline-item { grid-template-columns: 1fr; gap: 24px; }
  .job-heading { display: block; }
  .job-heading > span { display: inline-block; margin-top: 18px; }
  .education-grid, .continuing > div { grid-template-columns: 1fr; }
  .continuing article { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .continuing article + article { padding-left: 0; }
  .closing h2 { font-size: 14vw; }
  footer { min-height: 150px; padding: 30px 20px; flex-direction: column; align-items: flex-start; justify-content: center; }
}

@media print {
  .rail, .topbar, .hero-actions, footer { display: none; }
  .page { margin: 0; }
  .hero, .section, .closing { padding: 30px; }
  .hero { min-height: 0; grid-template-columns: 1fr 240px; }
  .hero h1 { font-size: 72px; }
  .signal-strip { break-inside: avoid; }
  .timeline-item, .education-card, .capability-layout { break-inside: avoid; }
}