/* ---------- Design tokens ---------- */
:root {
  --bg: #0a0c10;
  --bg-alt: #0e1116;
  --surface: #14171f;
  --surface-hover: #191d27;
  --border: #232733;
  --text: #f1f3f6;
  --text-dim: #9aa3b2;
  --text-faint: #626a79;

  --accent: #fdba4a;
  --accent-strong: #ffcd75;
  --clinical: #4fd1c5;
  --ops: #ff7a59;

  --radius: 14px;
  --radius-lg: 22px;
  --max-width: 1080px;

  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

ul {
  padding-left: 1.1em;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #0a0c10;
  padding: 0.75em 1.25em;
  border-radius: 0 0 10px 0;
  font-weight: 600;
  z-index: 200;
}
.skip-link:focus {
  left: 0;
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(10, 12, 16, 0.75);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--accent);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dim);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45em 1.1em !important;
  color: var(--text) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
  overflow: hidden;
}

.hero-inner {
  max-width: 640px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.6rem);
  font-weight: 800;
}

.hero-role {
  margin: 0.6rem 0 1.1rem;
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  font-weight: 600;
  color: var(--text-dim);
  min-height: 1.8em;
}

#role-rotator {
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}

.hero-tagline {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 46ch;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}

.hero-photo {
  width: 148px;
  height: 148px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: 0 20px 60px -20px rgba(253, 186, 74, 0.55);
  justify-self: end;
  flex-shrink: 0;
}

.hero-ticker {
  grid-column: 1 / -1;
  margin-top: 3.5rem;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.ticker-track {
  display: flex;
  gap: 2.5rem;
  white-space: nowrap;
  width: max-content;
  animation: ticker 26s linear infinite;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--text-faint);
}

.ticker-track span::after {
  content: "\2022";
  margin-left: 2.5rem;
  color: var(--accent);
}

@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.8em 1.6em;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #0a0c10;
  box-shadow: 0 10px 30px -12px rgba(253, 186, 74, 0.55);
}

.btn-primary:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  background: var(--surface-hover);
  transform: translateY(-2px);
}

/* ---------- Sections ---------- */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 1.5rem;
  border-top: 1px solid var(--border);
}

.section-head h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.3rem);
  margin: 0.4rem 0 0.8rem;
}

.section-intro {
  color: var(--text-dim);
  max-width: 56ch;
  font-size: 1.02rem;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  margin-top: 2.5rem;
  align-items: start;
}

.about-copy p {
  color: var(--text-dim);
  margin: 0 0 1.1em;
}

.about-copy p:first-child {
  color: var(--text);
  font-size: 1.08rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ---------- Track toggle ---------- */
.track-toggle {
  display: inline-flex;
  gap: 0.4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem;
  margin: 2rem 0 3rem;
}

.track-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 0.55em 1.2em;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.track-btn.active {
  background: var(--bg-alt);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.dot-clinical { background: var(--clinical); }
.dot-ops { background: var(--ops); }

/* ---------- Timeline ---------- */
.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-left: 2.4rem;
  margin-bottom: 2rem;
  transition: opacity 0.25s ease, max-height 0.25s ease;
}

.timeline-item.is-hidden {
  display: none;
}

.timeline-marker {
  position: absolute;
  left: 0;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--bg);
}

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.6rem;
}

.timeline-card h3 {
  font-size: 1.1rem;
  margin: 0.5rem 0 0.2rem;
}

.timeline-meta {
  color: var(--text-faint);
  font-size: 0.85rem;
  margin: 0 0 0.8rem;
}

.timeline-card ul {
  margin: 0;
  padding-left: 1.1em;
  color: var(--text-dim);
  font-size: 0.94rem;
}

.timeline-card li + li {
  margin-top: 0.4em;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.25em 0.7em;
  border-radius: 999px;
}

.badge-clinical {
  color: var(--clinical);
  background: rgba(79, 209, 197, 0.12);
}

.badge-ops {
  color: var(--ops);
  background: rgba(255, 122, 89, 0.12);
}

.earlier-roles {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.4rem;
  background: var(--surface);
}

.earlier-roles summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
}

.earlier-roles ul {
  margin: 1rem 0 0.2rem;
  color: var(--text-dim);
  font-size: 0.92rem;
}

.earlier-roles li + li {
  margin-top: 0.6em;
}

/* ---------- Leadership ---------- */
.leadership-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin-top: 2.5rem;
}

.leadership-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.leadership-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.leadership-card h3 {
  font-size: 1.02rem;
  margin-bottom: 0.4rem;
}

.leadership-card p:last-child {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin: 0;
}

/* ---------- Education ---------- */
.edu-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  margin-top: 2.5rem;
}

.edu-column h3 {
  font-size: 1.05rem;
  margin-bottom: 1rem;
}

.edu-list, .cert-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.edu-list li {
  display: flex;
  flex-direction: column;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
}

.edu-list li:last-child {
  border-bottom: none;
}

.edu-degree {
  font-weight: 600;
}

.edu-school {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-top: 0.15rem;
}

.cert-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
}

.cert-list li:last-child {
  border-bottom: none;
}

.competencies {
  margin-top: 3.5rem;
}

.competencies > h3 {
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.competency-group {
  margin-bottom: 1.4rem;
}

.competency-group h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 0.6rem;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pill {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.4em 0.95em;
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* ---------- Contact ---------- */
.contact-section {
  text-align: center;
}

.contact-section .section-head {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.site-footer {
  text-align: center;
  padding: 2.5rem 1.5rem 3rem;
  color: var(--text-faint);
  font-size: 0.85rem;
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .ticker-track { animation: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .about-grid,
  .edu-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.5rem 1.5rem;
    gap: 1rem;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

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

  .hero-photo {
    justify-self: start;
    width: 96px;
    height: 96px;
  }

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

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