:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --line-strong: #cbd5e1;
  --accent: #2563eb;
  --accent-soft: #eff6ff;
  --shadow: 0 8px 30px rgba(15, 23, 42, 0.06);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.06), transparent 32%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover { text-decoration: underline; }

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  padding: 18px 0 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: var(--text);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.hero {
  margin: 18px 0 0;
  padding: 28px 0 12px;
}

.crumbs {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.crumbs span { color: #94a3b8; }

.panel {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.hero-panel {
  padding: 28px;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.lede {
  margin: 16px 0 0;
  max-width: 68ch;
  color: var(--muted);
  font-size: 1.06rem;
}

.section {
  margin: 24px 0 0;
  padding: 0 0 8px;
}

.section h2 {
  margin: 0 0 12px;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
}

.section p { margin: 0 0 12px; color: var(--muted); }

.grid {
  display: grid;
  gap: 14px;
}

.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  display: block;
  padding: 18px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
  text-decoration: none;
}

.card-title {
  margin: 0;
  font-size: 1rem;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.card-text {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.tag {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.link-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--text);
  font-weight: 700;
  font-size: 14px;
}

.link-pill:hover {
  border-color: var(--accent);
  text-decoration: none;
}

.footer {
  margin: 28px 0 40px;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  color: #64748b;
  font-size: 13px;
}

ul.clean {
  margin: 0;
  padding: 0;
  list-style: none;
}

ul.clean li + li { margin-top: 10px; }

@media (max-width: 900px) {
  .grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid.cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .shell { width: min(100% - 24px, 1120px); }
  .hero-panel { padding: 20px; }
  .grid.cols-2,
  .grid.cols-3,
  .grid.cols-4 { grid-template-columns: 1fr; }
}