:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --ink: #102033;
  --muted: #5c6d80;
  --accent: #2563eb;
  --accent-soft: #dfeaff;
  --line: #e3eaf3;
  --wrap: 820px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

.wrap {
  width: min(var(--wrap), 100%);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

a { color: var(--accent); }

/* --- degraded-read notice (spec 9.4) ------------------------------- */
.cache-note {
  margin: 0;
  padding: 0.6rem 1.25rem;
  background: var(--accent-soft);
  color: #1e40af;
  font-size: 0.85rem;
  text-align: center;
}

/* --- hero ---------------------------------------------------------- */
.hero {
  background: linear-gradient(180deg, #edf3ff 0%, var(--bg) 100%);
  padding: clamp(2.5rem, 7vw, 4.5rem) 0 2.5rem;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.headline {
  margin: 0.75rem 0 0;
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  color: var(--muted);
  max-width: 34em;
}

.summary {
  margin: 1rem 0 0;
  max-width: 38em;
}

.contacts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.5rem 0 0;
  padding: 0;
}

.contacts a {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

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

/* --- sticky section nav -------------------------------------------- */
.sticky-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 247, 251, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  padding-block: 0.8rem;
}

.sticky-nav a {
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

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

/* --- sections ------------------------------------------------------ */
section { padding-block: 2.5rem; border-bottom: 1px solid var(--line); }
section:last-of-type { border-bottom: 0; }

h2 {
  margin: 0 0 1.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.entry {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.4rem;
  margin-bottom: 1rem;
}

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

.entry h3 { margin: 0; font-size: 1.05rem; }
.entry h3 a { text-decoration: none; }
.entry h3 a:hover { text-decoration: underline; }

.dates {
  font-size: 0.85rem;
  color: var(--muted);
  white-space: nowrap;
}

.meta { margin: 0.3rem 0 0; color: var(--muted); font-size: 0.92rem; }
.note { color: var(--muted); font-size: 0.88rem; }

.tag {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

.bullets { margin: 0.8rem 0 0; padding-left: 1.1rem; }
.bullets li { margin-bottom: 0.45rem; font-size: 0.94rem; }
.bullets li:last-child { margin-bottom: 0; }

/* --- skills -------------------------------------------------------- */
.skill-group { margin-bottom: 1.25rem; }
.skill-group h3 { margin: 0 0 0.6rem; font-size: 0.95rem; }

.pills {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
}

.pills li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.3rem 0.7rem;
  font-size: 0.85rem;
}

/* --- awards -------------------------------------------------------- */
.awards { margin: 0; padding-left: 1.1rem; }
.awards li { margin-bottom: 0.6rem; }
.awards .note { display: block; }

/* --- footer -------------------------------------------------------- */
footer {
  padding-block: 2rem 3rem;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 480px) {
  .entry-head { flex-direction: column; gap: 0.15rem; }
  .dates { white-space: normal; }
}