:root {
  --bg: #fbfbfa;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5a5f66;
  --accent: #0f766e;
  --accent-2: #0ea5a4;
  --accent-soft: #d6f0ec;
  --border: #e7e7e4;
  --radius: 16px;
  --maxw: 1000px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 10px 30px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 10;
}
.skip-link:focus { left: 1rem; top: 1rem; }

a { color: var(--accent); }
.muted { color: var(--muted); margin: 0; }

.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; box-shadow: 0 6px 18px rgba(15,118,110,0.3); }
.btn-primary:hover { box-shadow: 0 10px 26px rgba(15,118,110,0.4); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn-ghost { background: transparent; color: var(--accent); border-color: var(--accent-soft); }
.btn.big { padding: 0.85rem 1.7rem; font-size: 1.05rem; }

/* Hero */
.hero {
  background: radial-gradient(1200px 500px at 70% -10%, var(--accent-soft), transparent),
              var(--bg);
  padding-bottom: 4rem;
}
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.4rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { font-weight: 700; letter-spacing: -0.01em; }
.nav-links { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 500; }
.nav-links a:hover { color: var(--text); }

.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 4rem 1.5rem 0;
}
.avatar {
  border-radius: 50%;
  border: 4px solid var(--surface);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  object-fit: cover;
}
.eyebrow {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  margin: 0 0 0.5rem;
}
h1 {
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}
.lede { font-size: 1.2rem; color: var(--muted); max-width: 620px; margin: 0 0 2rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.8rem; }

main { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

.focus { padding: 3.5rem 0 1rem; }
h2 { font-size: 1.6rem; letter-spacing: -0.01em; margin: 0 0 1.2rem; }
.chips { display: flex; flex-wrap: wrap; gap: 0.6rem; list-style: none; padding: 0; margin: 0; }
.chips li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 1rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.cards { padding: 2.5rem 0; }

/* Featured blog */
.blog { padding: 3rem 0 1rem; }
.blog-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 1.4rem; }
.blog-head h2 { margin: 0.2rem 0; }
.tag { display: inline-block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); background: var(--accent-soft); padding: 0.2rem 0.6rem; border-radius: 999px; margin-bottom: 0.7rem; }
.post { text-decoration: none; color: inherit; display: block; }
.post:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(0,0,0,0.1); }
.post p { margin-bottom: 0; }

.grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card h3 { margin: 0 0 0.5rem; font-size: 1.15rem; }
.card p { margin: 0 0 1rem; color: var(--muted); }
.card a { font-weight: 600; text-decoration: none; }

.connect {
  text-align: center;
  padding: 4rem 0;
}
.connect .cta-row { justify-content: center; }
.connect p { color: var(--muted); max-width: 540px; margin: 0 auto 2rem; }

.footer {
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}

@media (max-width: 600px) {
  .nav-links { display: none; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a21;
    --text: #f1f1ee;
    --muted: #9aa1ab;
    --accent: #2dd4bf;
    --accent-2: #34d399;
    --accent-soft: #123b37;
    --border: #262a33;
  }
}