:root {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --card: #1e293b;
  --border: #334155;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.nav {
  position: sticky;
  top: 0;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.nav__inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
  text-decoration: none;
}

.nav__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav__links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav__links a:hover {
  color: var(--accent);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
}

.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(circle at 50% 30%, #1e3a8a 0%, var(--bg) 60%);
  padding: 4rem 1.5rem;
}

.hero__content {
  max-width: 700px;
}

.hero__pronouns {
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.hero__name {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.hero__title {
  font-size: 1.25rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.hero__location {
  color: var(--muted);
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.15s, opacity 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--accent);
  color: #0f172a;
}

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

.section {
  padding: 4rem 1.5rem;
}

.section--alt {
  background: var(--bg-soft);
}

.container {
  max-width: 900px;
  margin: 0 auto;
}

.section__title {
  font-size: 2rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

.section__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 60px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.about__text {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 1rem;
  max-width: 700px;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline__item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: border-color 0.2s;
}

.timeline__item:hover {
  border-color: var(--accent);
}

.timeline__meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.timeline__role {
  font-size: 1.15rem;
  color: var(--text);
}

.timeline__org {
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.timeline__desc {
  list-style: none;
  color: var(--muted);
}

.timeline__desc li {
  padding-left: 1.25rem;
  position: relative;
  margin-bottom: 0.4rem;
}

.timeline__desc li::before {
  content: "\25B8";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.skills__group {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}

.skills__group h3 {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.skills__group ul {
  list-style: none;
}

.skills__group li {
  color: var(--muted);
  padding: 0.3rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.skills__group li::before {
  content: "\2022";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.contact {
  text-align: center;
}

.contact__text {
  color: var(--muted);
  margin-bottom: 1.5rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.contact__links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.15s;
}

.contact__link:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.contact__icon {
  color: var(--accent);
}

.footer {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 640px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
  }

  .nav__links.open {
    display: flex;
  }

  .nav__toggle {
    display: flex;
  }
}