:root {
  --bg: #0b0d12;
  --bg-alt: #12151c;
  --text: #eef0f4;
  --text-dim: #9aa2b1;
  --accent: #6ea8fe;
  --border: #232733;
  --max-width: 880px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fbfbfd;
    --bg-alt: #f2f3f6;
    --text: #14161c;
    --text-dim: #565d6d;
    --accent: #2f5fd8;
    --border: #e3e5ec;
  }
}

* { box-sizing: border-box; }

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

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; }

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 24px;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-name { font-weight: 600; }
.nav nav a {
  color: var(--text-dim);
  margin-left: 24px;
  font-size: 0.9rem;
}
.nav nav a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 100px 24px 80px;
}
.eyebrow {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 16px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 0 0 20px;
  max-width: 16ch;
}
.hero-sub {
  color: var(--text-dim);
  font-size: 1.15rem;
  max-width: 56ch;
  margin: 0 0 32px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--accent);
  color: #08101f;
}
.btn-primary:hover { opacity: 0.9; }
.btn-secondary {
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-secondary:hover { border-color: var(--accent); }

/* Highlights */
.highlights { background: var(--bg-alt); border-bottom: 1px solid var(--border); }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 32px;
}
.stat { display: flex; flex-direction: column; gap: 8px; }
.stat-num { font-size: 1.8rem; font-weight: 700; color: var(--accent); }
.stat-label { color: var(--text-dim); font-size: 0.9rem; }

/* About */
.about h2, .experience h2, .skills h2, .project h2 { font-size: 1.6rem; margin: 0 0 20px; }
.about p { color: var(--text-dim); max-width: 68ch; }

/* Experience */
.experience { border-bottom: 1px solid var(--border); }
.timeline { display: flex; flex-direction: column; gap: 28px; }
.role-head {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-bottom: 6px;
}
.role-title { font-weight: 600; }
.role-meta { color: var(--text-dim); font-size: 0.9rem; }
.role p { margin: 0; color: var(--text-dim); }

/* Skills */
.tag-group { margin-bottom: 28px; }
.tag-group h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin: 0 0 12px;
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Project */
.project { background: var(--bg-alt); border-bottom: 1px solid var(--border); }
.project p { color: var(--text-dim); max-width: 68ch; }
.project-status { color: var(--accent) !important; font-weight: 600; }

/* Footer */
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-name { font-weight: 600; margin: 0; }
.footer-loc { color: var(--text-dim); margin: 4px 0 0; font-size: 0.9rem; }
.footer-links { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }

@media (max-width: 600px) {
  .nav nav a { margin-left: 14px; font-size: 0.82rem; }
  .footer-inner { flex-direction: column; }
  .footer-links { align-items: flex-start; }
}