:root {
  --bg: #0B1220;
  --bg-raised: #111A2C;
  --border: #1E2A3D;
  --text: #E8ECF1;
  --text-dim: #7C8797;
  --accent: #00D9C0;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

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

@media (prefers-reduced-motion: reduce) {
  .cursor { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Nav ---------- */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  max-width: 720px;
  margin: 0 auto;
}

.topbar .prompt {
  font-family: var(--mono);
  color: var(--text-dim);
  font-size: 0.9rem;
}

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  margin-left: 1.25rem;
  font-family: var(--mono);
  font-size: 0.9rem;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--accent);
}

/* ---------- Layout ---------- */

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

section {
  margin-top: 3rem;
}

/* ---------- Hero ---------- */

.hero {
  padding: 3.5rem 0 2rem;
}

.shell-line {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
}

.cursor {
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

h1 {
  font-family: var(--mono);
  font-size: 2.1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}

.role {
  font-size: 1.05rem;
  margin: 0 0 0.2rem;
  color: var(--text);
}

.dim { color: var(--text-dim); }

.location {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin: 0 0 1.25rem;
}

.hero-links a {
  color: var(--accent);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.9rem;
  margin-right: 1.25rem;
  border-bottom: 1px solid transparent;
}

.hero-links a:hover {
  border-bottom-color: var(--accent);
}

/* ---------- Body text ---------- */

.body-text {
  max-width: 62ch;
  color: var(--text);
}

/* ---------- Timeline ---------- */

.timeline {
  border-left: 1px solid var(--border);
  padding-left: 1.25rem;
}

.entry {
  margin-bottom: 2rem;
}

.entry-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.entry-head h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
}

.entry-date {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.entry-org {
  color: var(--accent);
  margin: 0.15rem 0 0.6rem;
  font-size: 0.95rem;
}

.entry ul {
  margin: 0;
  padding-left: 1.1rem;
}

.entry li {
  margin-bottom: 0.35rem;
  color: var(--text);
}

/* ---------- Project grid ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.1rem 1.25rem;
  text-decoration: none;
  color: var(--text);
  background: var(--bg-raised);
  transition: border-color 0.15s ease;
}

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

.card h4 {
  margin: 0 0 0.4rem;
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--accent);
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* ---------- Tags ---------- */

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tags span {
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
}

/* ---------- Footer ---------- */

footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.85rem;
}

footer a {
  color: var(--text-dim);
}

/* ---------- Focus visibility ---------- */

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Mobile ---------- */

@media (max-width: 480px) {
  h1 { font-size: 1.6rem; }
  .entry-head { flex-direction: column; align-items: flex-start; }
}