:root {
  --bg: #f7faf8;
  --surface: #ffffff;
  --surface-soft: #eef5f1;
  --text: #16322c;
  --muted: #5b6f68;
  --border: #d7e4dd;
  --primary: #2f5d50;
  --primary-dark: #1f4037;
  --shadow: 0 16px 42px rgba(31, 64, 55, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(180deg, #f6faf7 0%, #f9fcfa 100%);
  color: var(--text);
  line-height: 1.55;
}
a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(247, 250, 248, 0.92);
  border-bottom: 1px solid rgba(215, 228, 221, 0.9);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; padding: 0.95rem 0; gap: 1rem; }
.brand { font-weight: 800; letter-spacing: 0.04em; color: var(--primary-dark); }
.nav-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-weight: 600; }
.hero { padding: 4.75rem 0 2.25rem; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.95fr); gap: 1.5rem; align-items: start; }
.eyebrow, .section-kicker { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.76rem; font-weight: 800; color: var(--primary); margin: 0 0 0.7rem; }
.hero h1 { font-size: clamp(2.8rem, 6vw, 4.6rem); line-height: 0.95; margin: 0; letter-spacing: -0.05em; }
.hero h1 span { color: var(--primary); }
.hero-subtitle { font-size: 1.15rem; font-weight: 700; color: var(--primary-dark); margin: 1rem 0 0.75rem; }
.hero-copy { max-width: 62ch; font-size: 1.06rem; color: #28463f; margin-bottom: 1.1rem; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-bottom: 1.3rem; }
.hero-meta span {
  border: 1px solid var(--border); background: rgba(255,255,255,0.8); color: var(--muted);
  border-radius: 999px; padding: 0.45rem 0.8rem; font-size: 0.92rem; font-weight: 600;
}
.hero-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; border-radius: 999px;
  padding: 0.82rem 1.15rem; font-weight: 700; border: 1px solid transparent; transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn-primary { background: var(--primary); color: white; box-shadow: var(--shadow); }
.btn-secondary { background: white; color: var(--primary-dark); border-color: var(--border); }
.hero-card, .summary-card, .metric-card, .timeline-item, .stack-grid article, .credentials-grid > div {
  background: var(--surface); border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow);
}
.hero-card { padding: 1.3rem 1.25rem; }
.hero-card h2 { margin-top: 0; font-size: 1.1rem; }
.hero-card ul { margin: 0.6rem 0 0; padding-left: 1.05rem; }
.hero-card li + li { margin-top: 0.7rem; }
.section { padding: 1.6rem 0; }
.section-tint { background: linear-gradient(180deg, rgba(234,243,239,0.6) 0%, rgba(247,250,248,0.2) 100%); }
.section-heading { margin-bottom: 1rem; }
.section-heading h2 { margin: 0; font-size: clamp(1.6rem, 3.8vw, 2.3rem); letter-spacing: -0.03em; }
.summary-card { padding: 1.35rem 1.4rem; }
.summary-card p { margin: 0; }
.summary-card p + p { margin-top: 0.85rem; }
.metrics-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.metric-card { padding: 1.2rem; }
.metric { font-size: 2rem; line-height: 1; font-weight: 800; color: var(--primary-dark); margin-bottom: 0.55rem; }
.timeline { display: grid; gap: 1rem; }
.timeline-item { padding: 1.25rem 1.3rem; }
.timeline-head { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; align-items: baseline; }
.timeline-head h3 { margin: 0; font-size: 1.14rem; }
.timeline-head span { color: var(--primary); font-weight: 700; font-size: 0.93rem; }
.role { margin: 0.2rem 0 0.75rem; color: var(--muted); font-weight: 700; }
.timeline-item ul { margin: 0; padding-left: 1.1rem; }
.timeline-item li + li { margin-top: 0.55rem; }
.stack-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.stack-grid article { padding: 1.15rem 1.2rem; }
.stack-grid h3 { margin: 0 0 0.35rem; font-size: 1rem; }
.stack-grid p { margin: 0; color: #2b463f; }
.credentials-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.credentials-grid > div { padding: 1.25rem; }
.credentials-grid h2 { margin: 0 0 0.45rem; font-size: 1.4rem; }
.credential-list { margin: 0.4rem 0 0; padding-left: 1rem; }
.credential-list li + li { margin-top: 0.4rem; }
.site-footer { border-top: 1px solid var(--border); padding: 1.3rem 0 2rem; }
.footer-wrap { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: var(--muted); font-weight: 600; }
@media (max-width: 900px) {
  .hero-grid, .metrics-grid, .stack-grid, .credentials-grid { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .nav-wrap { align-items: flex-start; flex-direction: column; }
  .hero { padding-top: 3.4rem; }
  .hero h1 { font-size: 2.65rem; }
  .wrap { width: min(100% - 1.1rem, 1120px); }
}