:root {
  --ink: #0f2a33;
  --ink-soft: #29434c;
  --muted: #5b7079;
  --paper: #f7f4ee;
  --paper-2: #efeae1;
  --line: #d8d1c4;
  --accent: #0d5c63;
  --accent-2: #147a82;
  --accent-soft: #e6f1f2;
  --gold: #b08a49;
  --white: #ffffff;
  --max: 1120px;
  --radius: 12px;
  --shadow-sm: 0 1px 2px rgba(15, 42, 51, 0.06), 0 2px 6px rgba(15, 42, 51, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 42, 51, 0.08);
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Fraunces", Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--accent-2);
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
  line-height: 1.2;
  font-weight: 600;
}

p {
  margin: 0 0 1rem;
}

.container {
  width: min(var(--max), 92vw);
  margin: 0 auto;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 244, 238, 0.92);
  backdrop-filter: saturate(1.3) blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 600;
}
.brand:hover { color: var(--accent); }

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1rem;
}

.nav-links {
  display: flex;
  gap: 1.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-links a:hover {
  color: var(--ink);
}
.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 0.4rem;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ===== Hero ===== */
.hero {
  padding: 5.5rem 0 4rem;
  background:
    radial-gradient(1200px 500px at 90% -10%, rgba(13, 92, 99, 0.12), transparent 60%),
    radial-gradient(800px 400px at -10% 110%, rgba(176, 138, 73, 0.09), transparent 60%),
    var(--paper);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
  margin: 0 0 1rem;
}

.hero h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.6rem);
  line-height: 1.08;
  margin-bottom: 1.25rem;
}

.hero-accent {
  color: inherit;
  font-style: normal;
  font-weight: 600;
}

.lede {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 40rem;
  margin-bottom: 1.75rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  border: 1.5px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--accent-2);
  color: var(--white);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn-ghost:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-1px);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin: 0;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}
.hero-stats dt {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}
.hero-stats dd {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 600;
  color: var(--ink);
}

.hero-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  position: relative;
}
.hero-card::before {
  content: "";
  position: absolute;
  top: 1.75rem;
  left: 0;
  width: 4px;
  height: calc(100% - 3.5rem);
  background: linear-gradient(var(--accent), var(--gold));
  border-radius: 0 2px 2px 0;
}

.card-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-family: var(--font-sans);
  font-weight: 700;
  margin-bottom: 1.1rem;
}

.card-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.card-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.95rem;
}
.card-list li:last-child {
  border-bottom: 0;
}
.card-list strong {
  color: var(--ink);
  font-weight: 600;
}
.card-list span {
  color: var(--ink-soft);
}

/* ===== Sections ===== */
.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--line);
}
.section-muted {
  background: var(--paper-2);
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 0.7rem;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  margin-bottom: 2.5rem;
  max-width: 42rem;
}

.section-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 3rem;
  align-items: start;
}

.section-intro h2 {
  font-size: clamp(1.7rem, 2.6vw, 2.1rem);
  margin-top: 0.4rem;
}

.pillars {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: grid;
  gap: 1.25rem;
}
.pillars li {
  padding: 1.25rem 1.4rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}
.pillars h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}
.pillars p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 0.97rem;
}

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}
.skill-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.skill-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.skill-card h3 {
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.skill-card p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 0.95rem;
}

.toolkit {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}
.toolkit h4 {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 0.8rem;
}
.tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tags li {
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid rgba(13, 92, 99, 0.12);
}

/* ===== Timeline ===== */
.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 170px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--line);
}
.timeline > li {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 2.2rem;
  padding: 1.5rem 0;
  position: relative;
}
.timeline > li::before {
  content: "";
  position: absolute;
  left: 164px;
  top: 2rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px var(--paper);
}
.section-muted .timeline > li::before {
  box-shadow: 0 0 0 4px var(--paper-2);
}

.timeline-meta time {
  display: block;
  font-weight: 600;
  color: var(--ink);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}
.timeline-org {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 0;
}
.timeline-body h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}
.timeline-body ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
}
.timeline-body li {
  margin-bottom: 0.4rem;
}

/* ===== Education ===== */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}
.edu-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: var(--shadow-sm);
}
.edu-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}
.edu-school {
  color: var(--accent);
  font-weight: 500;
  margin: 0 0 0.2rem;
  font-size: 0.95rem;
}
.edu-dates {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 0.9rem;
}
.edu-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.edu-card li { margin-bottom: 0.35rem; }
.edu-card-licensure { border-top: 3px solid var(--gold); }

/* ===== Publications ===== */
.subhead {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin: 2rem 0 0.9rem;
  font-weight: 700;
}
.subhead:first-child { margin-top: 0; }

.pub-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: grid;
  gap: 1rem;
}
.pub-list li {
  padding: 1.1rem 1.25rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.pub-title {
  font-family: var(--font-serif);
  color: var(--ink);
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
  line-height: 1.35;
  font-weight: 600;
}
.pub-meta {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin: 0 0 0.2rem;
}
.pub-doi {
  font-size: 0.85rem;
  margin: 0;
}

/* ===== Leadership ===== */
.leadership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.lead-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.lead-dates {
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin: 0 0 0.5rem;
}
.lead-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.2rem;
}
.lead-org {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 0 0 0.7rem;
}
.lead-card p:last-child {
  color: var(--ink-soft);
  margin: 0;
  font-size: 0.95rem;
}

.memberships ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 0.75rem;
}
.memberships li {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 0.85rem 1.1rem;
  border-radius: 8px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ===== Contact ===== */
.section-contact {
  background: linear-gradient(180deg, var(--ink) 0%, #0a1f25 100%);
  color: var(--paper);
  border-bottom: 0;
  padding: 5rem 0;
}
.section-contact .section-kicker { color: var(--gold); }
.section-contact h2 {
  color: var(--paper);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  max-width: 28rem;
  margin-bottom: 1rem;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: start;
}
.contact-lede {
  color: rgba(247, 244, 238, 0.82);
  max-width: 32rem;
  margin: 0;
}
.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.contact-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(247, 244, 238, 0.15);
}
.contact-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--gold);
  font-weight: 600;
}
.contact-list a {
  color: var(--paper);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.contact-list a:hover {
  color: var(--white);
  border-color: var(--gold);
}

/* ===== Footer ===== */
.site-footer {
  padding: 1.75rem 0;
  background: #0a1f25;
  color: rgba(247, 244, 238, 0.7);
  font-size: 0.88rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-tag {
  margin: 0;
  color: rgba(247, 244, 238, 0.55);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .section-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .timeline::before { left: 8px; }
  .timeline > li {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding-left: 2rem;
  }
  .timeline > li::before {
    left: 2px;
    top: 1.75rem;
  }
  .nav-links {
    position: absolute;
    top: 100%;
    right: 4vw;
    flex-direction: column;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    padding: 1rem 1.25rem;
    gap: 0.75rem;
    display: none;
    min-width: 180px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: inline-block; }
  .brand-name { display: none; }
}

@media (max-width: 560px) {
  .hero { padding: 3.5rem 0 2.75rem; }
  .section { padding: 3.5rem 0; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .card-list li { grid-template-columns: 1fr; gap: 0.1rem; }
  .contact-list li { grid-template-columns: 1fr; gap: 0.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}