:root {
  --background: #f7f4ef;
  --text: #1f1f1f;
  --muted: #666666;
  --card: #ffffff;
  --accent: #315c48;
  --accent-dark: #203d30;
  --border: #ded8ce;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(247, 244, 239, 0.95);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.logo { font-weight: 700; color: var(--text); text-decoration: none; }
.nav-links { display: flex; gap: 18px; flex-wrap: wrap; }
.nav-links a { color: var(--text); text-decoration: none; font-size: 0.95rem; }
.nav-links a:hover { color: var(--accent); }

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 110px 24px 80px;
}
.hero-text { max-width: 820px; }
.eyebrow {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
h1 {
  font-size: clamp(2.3rem, 6vw, 4.8rem);
  line-height: 1.05;
  margin: 12px 0 20px;
}
.hero-subtitle { font-size: 1.25rem; color: var(--muted); max-width: 680px; }

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 70px 24px;
  border-top: 1px solid var(--border);
}
h2 { font-size: 2rem; margin: 0 0 22px; }

.button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.button {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}
.primary { background: var(--accent); color: white; }
.primary:hover { background: var(--accent-dark); }
.secondary { border: 1px solid var(--accent); color: var(--accent); }
.secondary:hover { background: white; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card, .timeline-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
}
.card h3, .timeline-item h3 { margin-top: 0; }
.tagline { color: var(--muted); font-weight: 700; font-size: 0.95rem; }
.timeline-item { margin-bottom: 16px; }

.skills-list { display: flex; flex-wrap: wrap; gap: 12px; }
.skills-list span {
  background: white;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 14px;
}

.contact-section { padding-bottom: 90px; }
footer {
  text-align: center;
  color: var(--muted);
  padding: 28px 24px;
  border-top: 1px solid var(--border);
}

@media (max-width: 800px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .card-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 70px; }
}