:root {
  --bg: #fbfbf8;
  --text: #171717;
  --muted: #666;
  --light: #e5e5df;
  --accent: #1f5eff;
  --max: 860px;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "DM Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
  font-size: 16px;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

button, input, textarea, select { font: inherit; }

.container {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.site-header {
  padding: 24px 0;
  border-bottom: 1px solid var(--light);
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(251, 251, 248, .93);
  backdrop-filter: blur(10px);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.brand {
  font-weight: 700;
  letter-spacing: -.03em;
  font-size: 40px; 
}

.nav nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 13px;
}

.hero {
  padding-top: 90px;
  padding-bottom: 95px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 230px;
  gap: 55px;
  align-items: center;
}

.eyebrow, .project-meta, .experience-meta, .education-year,
.progress-label, .skill-number, .photo-note {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero h1 {
  font-size: clamp(48px, 8vw, 78px);
  line-height: .98;
  letter-spacing: -.065em;
  margin: 16px 0 10px;
}

.hero h2 {
  margin: 0 0 28px;
  font-size: 19px;
  line-height: 1.35;
  font-weight: 500;
  letter-spacing: -.02em;
}

.lede {
  max-width: 670px;
  font-size: 20px;
  line-height: 1.55;
  margin: 0;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 30px;
  font-family: var(--mono);
  font-size: 12px;
}

.links a, .text-link, .contact-links a {
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.profile-wrap {
  text-align: center;
}

.profile-frame {
  width: 205px;
  height: 245px;
  margin: auto;
  overflow: hidden;
  background: #e9e9e4;
  border: 1px solid var(--light);
}

.profile-frame img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.photo-note {
  margin-top: 12px;
}

.section {
  padding: 80px 0;
  border-top: 1px solid var(--light);
}

.section-heading {
  display: grid;
  grid-template-columns: 50px 1fr;
  margin-bottom: 42px;
  align-items: baseline;
}

.section-heading > span {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 11px;
}

.section-heading h2 {
  margin: 0;
  font-size: 29px;
  letter-spacing: -.04em;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--light);
  border-left: 1px solid var(--light);
}

.focus-grid div {
  padding: 23px 18px;
  border-right: 1px solid var(--light);
  border-bottom: 1px solid var(--light);
  font-weight: 600;
}

.section-copy {
  max-width: 670px;
  color: var(--muted);
  margin-top: 30px;
}

.experience-list, .project-list, .education-list {
  border-top: 1px solid var(--light);
}

.experience, .project, .education-list > div {
  padding: 32px 0;
  border-bottom: 1px solid var(--light);
}

.experience h3, .project h3, .education-list h3 {
  margin: 7px 0 10px;
  font-size: 23px;
  line-height: 1.25;
  letter-spacing: -.035em;
}

.experience ul, .project ul {
  max-width: 760px;
  color: #4f4f4f;
  padding-left: 20px;
  margin-bottom: 0;
}

.experience li, .project li { margin: 7px 0; }

.project-lead {
  max-width: 760px;
  font-size: 17px;
  color: #3f3f3f;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 20px;
}

.tags span {
  border: 1px solid #d6d6cf;
  padding: 4px 8px;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
}

.text-link {
  display: inline-block;
  margin-top: 26px;
  font-family: var(--mono);
  font-size: 12px;
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--light);
  border-left: 1px solid var(--light);
}

.skill-group {
  min-height: 210px;
  padding: 25px;
  border-right: 1px solid var(--light);
  border-bottom: 1px solid var(--light);
}

.skill-group h3 {
  margin: 8px 0 14px;
  font-size: 20px;
  letter-spacing: -.03em;
}

.skill-group p {
  color: var(--muted);
  margin: 8px 0;
}

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--light);
}

.tab {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 11px 14px;
  cursor: pointer;
  color: var(--muted);
  border-bottom: 2px solid transparent;
}

.tab.active {
  color: var(--text);
  border-bottom-color: var(--text);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.progress-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  padding: 24px 0;
  border-bottom: 1px solid var(--light);
}

.progress-card h3 {
  margin: 6px 0 0;
  font-size: 18px;
  letter-spacing: -.02em;
}

.progress-card a {
  white-space: nowrap;
  font-family: var(--mono);
  font-size: 11px;
  border-bottom: 1px solid currentColor;
}

.cert-list {
  border-top: 1px solid var(--light);
}

.cert-list div {
  padding: 15px 0;
  border-bottom: 1px solid var(--light);
}

.leadership-list > div {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 30px;
  padding: 20px 0;
  border-bottom: 1px solid var(--light);
}

.leadership-list > div:first-child { border-top: 1px solid var(--light); }

.leadership-list span { color: var(--muted); }

.education-list h3 { margin-bottom: 4px; }
.education-list p { color: var(--muted); margin: 0; }

.contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 70px;
}

.large-copy {
  font-size: 23px;
  line-height: 1.5;
  letter-spacing: -.025em;
}

.contact-links {
  display: flex;
  gap: 18px;
  margin-top: 25px;
  font-family: var(--mono);
  font-size: 12px;
}

.contact-form {
  border-top: 1px solid var(--light);
  padding-top: 22px;
}

.contact-form label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin: 16px 0 7px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  border: 1px solid #d8d8d1;
  background: #fff;
  padding: 12px 13px;
  border-radius: 0;
  color: var(--text);
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--text);
}

.contact-form textarea { resize: vertical; }

.contact-form button {
  margin-top: 18px;
  border: 1px solid var(--text);
  background: var(--text);
  color: white;
  padding: 12px 17px;
  cursor: pointer;
}

.contact-form button:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.form-note, .form-status {
  color: var(--muted);
  font-size: 11px;
}

.form-status.success { color: #236a3b; }
.form-status.error { color: #a52a2a; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 25px 0 40px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .05em;
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .site-header { position: static; }
  .nav nav { display: none; }

  .hero { padding-top: 65px; padding-bottom: 65px; }
  .hero-grid { grid-template-columns: 1fr; gap: 38px; }
  .profile-wrap { order: -1; text-align: left; }
  .profile-frame { margin: 0; width: 155px; height: 185px; }
  .hero h1 { font-size: 52px; }

  .section { padding: 62px 0; }
  .focus-grid, .skills-grid, .contact-grid { grid-template-columns: 1fr; }
  .leadership-list > div { grid-template-columns: 1fr; gap: 6px; }
  .progress-card { align-items: flex-start; flex-direction: column; gap: 12px; }
  .footer { flex-direction: column; }
}