:root {
  --bg: #1B1D21;
  --surface: #232629;
  --surface-alt: #1F2124;
  --ink: #ECEDEF;
  --ink-muted: #9CA1AA;
  --border: #34373C;
  --teal: #C1662C;
  --teal-soft: rgba(193, 102, 44, 0.22);
  --amber: #D99A4E;
  --amber-soft: rgba(217, 154, 78, 0.2);

  --font-display: "Public Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --max: 880px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-display);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

.mono { font-family: var(--font-mono); letter-spacing: 0.02em; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.01em; }

ul { padding-left: 1.1em; }
li { margin-bottom: 6px; color: var(--ink-muted); }
li::marker { color: var(--teal); }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(27, 29, 33, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 16px;
}

.wordmark {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
}

.main-nav {
  display: flex;
  gap: 24px;
  font-size: 0.9rem;
  color: var(--ink-muted);
}

.main-nav a:hover { color: var(--ink); }

.header-cta { font-size: 0.85rem; padding: 8px 16px; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--teal);
  color: #1B1D21;
}
.btn-primary:hover { background: #D67A3C; }

.btn-ghost {
  border-color: var(--border);
  color: var(--ink);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- status dots ---------- */

.dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot-active { background: var(--teal); box-shadow: 0 0 0 3px var(--teal-soft); }
.dot-warn { background: var(--amber); box-shadow: 0 0 0 3px var(--amber-soft); }
.dot-inactive { background: var(--ink-muted); opacity: 0.5; }

.status-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-bottom: 20px;
}

/* ---------- hero ---------- */

.hero { padding: 88px 0 64px; }

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  margin-bottom: 10px;
}

.hero-role {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--teal);
  margin-bottom: 18px;
}

.hero-summary {
  max-width: 620px;
  color: var(--ink-muted);
  font-size: 1.05rem;
}

.hero-location {
  margin-top: 20px;
  font-size: 0.8rem;
  color: var(--ink-muted);
}

/* ---------- sections ---------- */

.section { padding: 64px 0; }
.section.alt { background: var(--surface-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.eyebrow {
  font-size: 0.75rem;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section h2 { font-size: 1.6rem; margin-bottom: 28px; }

.section-note { color: var(--ink-muted); margin-top: -14px; margin-bottom: 28px; max-width: 560px; }

/* ---------- credentials ---------- */

.credentials { padding-top: 0; padding-bottom: 48px; }

.credential-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.credential-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
}

.credential-card .dot { margin-top: 6px; }

.credential-title { font-weight: 600; font-size: 0.95rem; }
.credential-sub { font-size: 0.82rem; color: var(--ink-muted); margin-top: 2px; }

/* ---------- timeline ---------- */

.timeline { display: flex; flex-direction: column; }

.timeline-entry {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 24px;
}

.timeline-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.timeline-rail .dot { margin-top: 6px; }

.rail-line {
  flex: 1;
  width: 1px;
  background: var(--border);
  margin-top: 8px;
  min-height: 40px;
}

.timeline-content { padding-bottom: 40px; }

.timeline-date { font-size: 0.75rem; color: var(--ink-muted); margin-bottom: 4px; }

.timeline-content h3 { font-size: 1.15rem; margin-bottom: 2px; }

.timeline-org { color: var(--teal); font-weight: 600; font-size: 0.9rem; margin-bottom: 12px; }

.timeline-content ul { font-size: 0.92rem; }

/* ---------- skills ---------- */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}

.skill-label {
  font-size: 0.72rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 0.82rem;
  color: var(--ink);
}

/* ---------- projects ---------- */

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
}

.project-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  color: var(--ink-muted);
  margin-bottom: 14px;
}

.project-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.project-card p { color: var(--ink-muted); font-size: 0.92rem; margin-bottom: 10px; }

.project-stack { color: var(--ink) !important; font-size: 0.78rem !important; margin-bottom: 14px !important; }

.project-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--teal);
}
.project-link:hover { text-decoration: underline; }

/* ---------- contact ---------- */

.contact-inner { text-align: left; }

/* ---------- footer ---------- */

.site-footer { border-top: 1px solid var(--border); padding: 24px 0; }

.footer-inner {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--ink-muted);
}

/* ---------- responsive ---------- */

@media (max-width: 640px) {
  .main-nav { display: none; }
  .hero { padding: 56px 0 40px; }
  .timeline-entry { grid-template-columns: 14px 1fr; gap: 16px; }
  .credential-grid { grid-template-columns: 1fr; }
}

/* ---------- reduced motion ---------- */

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