:root {
  --brand: #2c59ff;
  --brand-dark: #1f3fb3;
  --ink: #0f172a;
  --muted: #475569;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --border: #e2e8f0;
  --accent: #10b981;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.1rem;
}

.brand-badge {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--brand);
  color: #fff;
  border-radius: 8px;
  font-weight: 800;
}

nav a {
  text-decoration: none;
  color: var(--ink);
  margin-left: 18px;
  padding: 8px 10px;
  border-radius: 8px;
}

nav a.active, nav a:hover {
  background: var(--bg-alt);
}

.hero {
  background: linear-gradient(180deg, #f0f4ff, #ffffff);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
  padding: 56px 0;
}

.hero h1 {
  font-size: 2.2rem;
  line-height: 1.2;
  margin: 0 0 12px 0;
}

.hero p {
  margin: 0 0 18px 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  appearance: none;
  border: none;
  outline: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover {
  background: var(--brand-dark);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 28px 0 0 0;
}

.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  background: #fff;
}

.card h3 {
  margin: 0 0 8px 0;
}

.section {
  padding: 40px 0;
}

.kicker {
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-dark);
  font-weight: 700;
}

.prose p {
  margin: 0 0 12px 0;
}

footer {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  background: var(--bg);
  color: var(--muted);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

small a {
  color: var(--muted);
  text-decoration: none;
}

small a:hover {
  text-decoration: underline;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
}

/* Blog styles */
.post-list { display: grid; grid-template-columns: 1fr; gap: 18px; }
.post { border: 1px solid var(--border); border-radius: 12px; padding: 18px; background:#fff; }
.post h2 { margin: 0 0 6px 0; font-size: 1.35rem; }
.post-meta { color: var(--muted); font-size: 0.9rem; margin: 0 0 10px 0; }
.post .tags { display:flex; gap:8px; flex-wrap:wrap; margin: 8px 0 0 0; }
.tag { font-size: 0.8rem; padding: 4px 8px; border:1px solid var(--border); border-radius: 999px; color: var(--muted); }
.article { max-width: 760px; margin: 0 auto; }
.article h1 { margin: 0 0 8px 0; }
.article .post-meta { margin-bottom: 18px; }
.article p { margin: 0 0 14px 0; }
.article img { max-width: 100%; height: auto; border-radius: 10px; }