:root {
  --bg: #0b1020;
  --bg-soft: #11172b;
  --card: #161d33;
  --line: #232c49;
  --text: #e7ecf6;
  --muted: #9aa6c0;
  --accent: #5eead4;
  --accent-2: #818cf8;
  --maxw: 62rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; flex-wrap: wrap;
  padding: .9rem 1.4rem;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand {
  font-weight: 700; letter-spacing: .12em; text-decoration: none; color: var(--text);
  display: flex; align-items: center; gap: .6rem;
}
.brand-mark {
  display: inline-grid; place-items: center;
  width: 2.1rem; height: 2.1rem; border-radius: .5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b1020; font-size: .85rem; font-weight: 800; letter-spacing: 0;
}
.site-header nav { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.site-header nav a { color: var(--muted); text-decoration: none; font-size: .92rem; }
.site-header nav a:hover { color: var(--accent); }

main { max-width: var(--maxw); margin: 0 auto; padding: 0 1.4rem; }

/* Typography */
.eyebrow {
  color: var(--accent); font-weight: 600; font-size: .85rem;
  text-transform: uppercase; letter-spacing: .14em; margin: 0 0 .6rem;
}
h1 { font-size: clamp(2.4rem, 6vw, 3.6rem); margin: 0 0 .8rem; line-height: 1.1; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); margin: 0 0 1rem; line-height: 1.25; }
.lede { color: var(--muted); max-width: 46rem; font-size: 1.05rem; }

.section { padding: 4.2rem 0; border-top: 1px solid var(--line); }

/* Hero */
.hero { padding: 6rem 0 4.5rem; }
.hero .lede { margin-top: 1.4rem; }
.hero-grid { display: flex; align-items: center; gap: 2.5rem; justify-content: space-between; }
.profile {
  width: 13rem; height: 13rem; object-fit: cover; flex-shrink: 0;
  border-radius: 1rem; border: 1px solid var(--line);
}
@media (max-width: 40rem) {
  .hero-grid { flex-direction: column-reverse; align-items: flex-start; }
  .profile { width: 9rem; height: 9rem; }
}

/* Stats */
.stat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1rem; margin: 2.2rem 0;
}
.stat {
  background: var(--card); border: 1px solid var(--line); border-radius: .8rem;
  padding: 1.2rem 1rem; text-align: center;
}
.stat strong { display: block; font-size: 1.7rem; color: var(--accent); }
.stat span { color: var(--muted); font-size: .88rem; }

.check-list { list-style: none; padding: 0; margin: 1.6rem 0 0; }
.check-list li { padding-left: 1.7rem; position: relative; margin-bottom: .55rem; }
.check-list li::before { content: "✔"; position: absolute; left: 0; color: var(--accent); }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1rem; margin-top: 2rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: .8rem; padding: 1.3rem; }
.card h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: .95rem; }

/* Projects */
.projects { grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); }
.project .period { display: block; font-size: .8rem; margin-bottom: .45rem; }
.project h3 { font-size: 1rem; }
.project .role { color: var(--accent-2); font-weight: 600; font-size: .85rem; margin: 0 0 .6rem; }
.resp-list { list-style: none; padding: 0; margin: .7rem 0 0; }
.resp-list li { position: relative; padding-left: 1.05rem; font-size: .85rem; color: var(--muted); margin-bottom: .25rem; }
.resp-list li::before { content: "–"; position: absolute; left: 0; color: var(--accent); }
.project .tag-list { margin-top: .8rem; }
.project .tag-list li { padding: .15rem .6rem; font-size: .78rem; }

.aside-note {
  margin-top: 2.5rem; padding: 1.2rem 1.4rem;
  border-left: 3px solid var(--accent-2); background: var(--bg-soft); border-radius: 0 .6rem .6rem 0;
}
.aside-note h3 { margin: 0 0 .3rem; font-size: 1rem; }
.aside-note p { margin: 0; color: var(--muted); }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 2.2rem 0 0; }
.timeline li {
  display: grid; grid-template-columns: 9.5rem 1fr; gap: 1.4rem;
  padding: 1.4rem 0; border-bottom: 1px solid var(--line);
}
.timeline li:last-child { border-bottom: none; }
.period { color: var(--accent); font-weight: 600; font-size: .92rem; padding-top: .25rem; }
.timeline h3 { margin: 0; font-size: 1.05rem; }
.timeline h4 { margin: .15rem 0 .5rem; font-size: .92rem; color: var(--accent-2); font-weight: 600; }
.timeline p { margin: 0; color: var(--muted); font-size: .95rem; }
.certs { margin-top: 2rem; color: var(--muted); font-size: .92rem; }
.certs strong { color: var(--text); }

/* Stack */
.stack-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1.4rem; margin-top: 2rem; }
.stack-group h3 { margin: 0 0 .8rem; font-size: .95rem; text-transform: uppercase; letter-spacing: .1em; color: var(--accent); }
.tag-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.tag-list li {
  background: var(--card); border: 1px solid var(--line); border-radius: 2rem;
  padding: .3rem .85rem; font-size: .88rem; color: var(--muted);
}

/* Contact */
.contact { text-align: center; }
.contact .eyebrow, .contact h2, .contact .lede { margin-left: auto; margin-right: auto; }
.contact-links { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }
.button {
  display: inline-block; padding: .75rem 1.6rem; border-radius: .55rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b1020; font-weight: 700; text-decoration: none;
}
.button.ghost { background: none; border: 1px solid var(--line); color: var(--text); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 2rem; }
.site-footer p { max-width: var(--maxw); margin: 0 auto; padding: 1.6rem 1.4rem; color: var(--muted); font-size: .88rem; }

@media (max-width: 40rem) {
  .timeline li { grid-template-columns: 1fr; gap: .3rem; }
  .hero { padding: 4rem 0 3rem; }
  .section { padding: 3rem 0; }
}