/* DevOps portfolio — dark terminal aesthetic, no frameworks */
:root {
  --bg: #0d1117;
  --bg-soft: #161b22;
  --bg-card: #131920;
  --border: #2d333b;
  --text: #d6dee6;
  --text-dim: #8b949e;
  --accent: #3fb950;
  --accent-soft: #2ea043;
  --mono: ui-monospace, "JetBrains Mono", "Cascadia Code", "Fira Code", Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --maxw: 62rem;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }

/* ---------- accessibility ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #04140a;
  padding: 0.6rem 1rem; font-weight: 700; z-index: 100;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}
.topbar nav {
  max-width: var(--maxw); margin: 0 auto; padding: 0.8rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  flex-wrap: wrap;
}
.brand {
  font-family: var(--mono); font-weight: 700; font-size: 1.05rem;
  color: var(--text); text-decoration: none;
}
.prompt { color: var(--accent); font-family: var(--mono); }
.nav-links {
  display: flex; gap: 1.1rem; list-style: none; margin: 0; padding: 0;
  font-family: var(--mono); font-size: 0.9rem; flex-wrap: wrap;
}
.nav-links a { color: var(--text-dim); text-decoration: none; }
.nav-links a:hover { color: var(--accent); }

/* ---------- hero ---------- */
.hero {
  max-width: var(--maxw); margin: 0 auto;
  padding: 5rem 1.25rem 4rem;
}
.hero-eyebrow {
  font-family: var(--mono); color: var(--accent);
  margin: 0 0 0.5rem; font-size: 1rem;
}
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  margin: 0 0 0.4rem; letter-spacing: -0.02em; line-height: 1.1;
}
.hero-role {
  font-family: var(--mono); font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--accent); margin: 0 0 1.2rem;
}
.hero-role .dim { color: var(--text-dim); }
.hero-tagline { max-width: 44rem; color: var(--text-dim); margin: 0 0 1.5rem; }

.chips {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  list-style: none; margin: 0 0 2rem; padding: 0;
}
.chips li {
  font-family: var(--mono); font-size: 0.82rem;
  border: 1px solid var(--border); background: var(--bg-soft);
  color: var(--text); padding: 0.25rem 0.7rem; border-radius: 999px;
}

.hero-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 0.65rem 1.3rem;
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); text-decoration: none; font-weight: 600;
  background: var(--bg-soft);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent-soft); border-color: var(--accent-soft); color: #04140a; }
.btn-primary:hover { background: var(--accent); }

/* ---------- sections ---------- */
.section {
  max-width: var(--maxw); margin: 0 auto;
  padding: 3.2rem 1.25rem; border-top: 1px solid var(--border);
}
.section h2 {
  font-size: 1.6rem; margin: 0 0 1.6rem; letter-spacing: -0.01em;
}
.prose p { color: var(--text-dim); max-width: 46rem; margin: 0 0 1rem; }
.prose strong, .prose b { color: var(--text); }
.prose a { color: var(--text); text-decoration-color: var(--accent); }
.prose a:hover { color: var(--accent); }
.prose code, .hero-tagline code {
  font-family: var(--mono); font-size: 0.9em;
  background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: 4px; padding: 0.05em 0.35em;
}
.prose ul { list-style: none; padding-left: 0; }
.prose ul li { margin-bottom: 0.45rem; }
.prose ul li::before { content: none; }

/* ---------- experience timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; }
.entry {
  position: relative;
  border-left: 2px solid var(--border);
  padding: 0 0 2.2rem 1.5rem;
}
.entry:last-child { padding-bottom: 0; }
.entry::before {
  content: ""; position: absolute; left: -7px; top: 0.45rem;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
}
.entry-meta {
  display: flex; gap: 0.9rem; align-items: baseline; flex-wrap: wrap;
  font-family: var(--mono); font-size: 0.85rem; margin-bottom: 0.3rem;
}
.period { color: var(--accent); }
.dur { color: var(--text-dim); }
.entry h3 { margin: 0 0 0.7rem; font-size: 1.12rem; }
.entry ul { margin: 0; padding-left: 1.2rem; color: var(--text-dim); }
.entry li { margin-bottom: 0.35rem; }

/* ---------- project cards ---------- */
.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1rem;
}
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 1.2rem 1.3rem;
}
.card h3 {
  margin: 0 0 0.6rem; font-size: 1.02rem; font-family: var(--mono);
  color: var(--accent);
}
.card p { margin: 0; color: var(--text-dim); font-size: 0.95rem; }

/* ---------- skills ---------- */
.skill-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
}
.skill-group {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 1rem 1.2rem; margin: 0;
}
.skill-group h3 {
  margin: 0 0 0.6rem; font-size: 0.82rem; font-family: var(--mono);
  text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent);
}
.skill-group ul { margin: 0; padding-left: 1.1rem; color: var(--text-dim); font-size: 0.93rem; }
.skill-group li { margin-bottom: 0.3rem; }

/* ---------- contacts ---------- */
.contact-list {
  list-style: none; margin: 1rem 0 0; padding: 1.2rem 1.4rem;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px;
  font-family: var(--mono); font-size: 0.95rem;
}
.contact-list li { margin-bottom: 0.5rem; }
.contact-list li:last-child { margin-bottom: 0; }
.contact-list a { color: var(--text); text-decoration-color: var(--accent); }
.contact-list a:hover { color: var(--accent); }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 1.6rem 1.25rem 2.2rem; text-align: center;
  color: var(--text-dim); font-size: 0.85rem;
}
.footer a { color: var(--text-dim); }
.footer a:hover { color: var(--accent); }

/* ---------- responsive ---------- */
@media (max-width: 640px) {
  .hero { padding: 3.4rem 1.25rem 2.8rem; }
  .topbar nav { justify-content: center; }
  .nav-links { justify-content: center; }
  .section { padding: 2.4rem 1.25rem; }
}