:root {
  --bg: #f5f1ea;
  --ink: #17212b;
  --muted: #66707c;
  --line: rgba(23, 33, 43, .14);
  --accent: #b88945;
  --surface: #fffaf2;
  --font: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  letter-spacing: 0;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 64px);
  background: rgba(245, 241, 234, .82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(23, 33, 43, .08);
}

.brand,
.site-header a {
  text-decoration: none;
}

.brand {
  font-weight: 800;
}

.site-header nav {
  display: flex;
  gap: clamp(14px, 3vw, 30px);
  color: var(--muted);
  font-size: 14px;
}

main {
  overflow: hidden;
}

.hero,
.proof-section,
.capability-section,
.experience-section,
.resume-section,
.contact-section {
  padding: clamp(82px, 12vw, 150px) clamp(20px, 7vw, 96px);
}

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
  align-items: center;
  gap: clamp(38px, 8vw, 110px);
  padding-top: 118px;
  background:
    linear-gradient(90deg, rgba(255, 250, 242, .92), rgba(255, 250, 242, .62)),
    radial-gradient(circle at 80% 22%, rgba(184, 137, 69, .18), transparent 32%),
    var(--bg);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(92px, 18vw, 230px);
  line-height: .84;
}

.hero-line {
  max-width: 760px;
  margin: 26px 0 0;
  font-size: clamp(28px, 4.5vw, 64px);
  line-height: 1.08;
  font-weight: 800;
}

.hero-summary {
  max-width: 680px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.6vw, 22px);
  line-height: 1.75;
}

.hero-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.primary-action,
.secondary-action,
.contact-links a,
.contact-links span {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--line);
  text-decoration: none;
  background: rgba(255, 250, 242, .66);
  transition: transform .28s var(--ease), border-color .28s var(--ease), background .28s var(--ease);
}

.primary-action {
  color: #fffaf2;
  background: var(--ink);
  border-color: var(--ink);
}

.primary-action:hover,
.secondary-action:hover,
.contact-links a:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.portrait {
  position: relative;
  margin: 0;
  max-width: 320px;
  justify-self: center;
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: 0 38px 100px rgba(23, 33, 43, .18);
}

.portrait::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, .48);
  pointer-events: none;
}

.portrait img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.section-head {
  max-width: 920px;
  margin-bottom: clamp(28px, 5vw, 58px);
}

.section-head h2,
.contact-section h2 {
  margin: 0;
  font-size: clamp(34px, 6vw, 86px);
  line-height: 1.05;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.proof-grid div {
  min-height: 150px;
  padding: 26px 18px;
  border-right: 1px solid var(--line);
}

.proof-grid div:last-child {
  border-right: 0;
}

.proof-grid strong {
  display: block;
  font-size: clamp(30px, 4vw, 56px);
  line-height: 1;
}

.proof-grid span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
}

.capability-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.capability-list article {
  min-height: 290px;
  padding: 30px;
  background: var(--surface);
}

.capability-list span,
.timeline-item time {
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
}

.capability-list h3,
.timeline-item h3 {
  margin: 18px 0 12px;
  font-size: clamp(22px, 2.4vw, 34px);
  line-height: 1.18;
}

.capability-list p,
.timeline-item p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.timeline {
  border-top: 1px solid var(--line);
}

.timeline-item {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: clamp(22px, 5vw, 72px);
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.timeline-item h3 {
  margin-top: 0;
}

.role {
  margin: 0 0 8px;
  color: var(--accent);
  font-weight: 800;
}

.resume-section {
  background: #eee8dd;
}

.resume-preview {
  margin: 0;
  max-width: 860px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 34px 90px rgba(23, 33, 43, .16);
}

.resume-actions {
  margin-top: 24px;
}

.contact-section {
  min-height: 70svh;
  display: grid;
  align-content: center;
  background: var(--ink);
  color: #fffaf2;
}

.contact-section .eyebrow {
  color: #d6b06f;
}

.contact-section h2 {
  max-width: 980px;
}

.contact-links a,
.contact-links span {
  color: #fffaf2;
  background: rgba(255, 250, 242, .06);
  border-color: rgba(255, 250, 242, .2);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 880px) {
  .site-header {
    position: absolute;
  }

  .site-header nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .portrait {
    max-width: 390px;
  }

  .proof-grid,
  .capability-list {
    grid-template-columns: 1fr;
  }

  .proof-grid div {
    min-height: 120px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-grid div:last-child {
    border-bottom: 0;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}