:root {
  --ink: #1c1c1a;
  --accent: #ff7a1a;
  --wash: #ffe8d6;
  --burnt: #8a3b00;
  --charcoal: #45413c;
  --slate: #6b6762;
  --pebble: #8a857e;
  --fog: #eceae6;
  --paper: #ffffff;
  --cream: #faf8f4;
  --radius: 28px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}
a { color: inherit; }

.wrap { width: min(1080px, 100% - 40px); margin: 0 auto; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.3px; text-decoration: none; font-size: 18px; }
.brand .mark { width: 28px; height: 28px; border-radius: 8px; background: var(--accent); display: grid; place-items: center; color: var(--ink); font-size: 14px; font-weight: 900; }
.nav .links { display: flex; gap: 22px; font-size: 15px; font-weight: 600; color: var(--charcoal); }
.nav .links a { text-decoration: none; }
.nav .links a:hover { color: var(--ink); }

.hero {
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius);
  padding: clamp(40px, 7vw, 96px) clamp(24px, 6vw, 80px);
  margin: 12px 0 40px;
  overflow: hidden;
  position: relative;
}
.hero .overline { color: var(--accent); font-weight: 700; letter-spacing: 1.2px; font-size: 13px; text-transform: uppercase; margin: 0 0 18px; }
.hero h1 { font-size: clamp(38px, 6.4vw, 72px); line-height: 1.02; letter-spacing: -2px; margin: 0 0 22px; max-width: 12ch; font-weight: 900; }
.hero p { font-size: clamp(17px, 1.6vw, 21px); color: #d9d5cf; max-width: 46ch; margin: 0 0 32px; }
.cta { display: inline-flex; align-items: center; gap: 10px; background: var(--accent); color: var(--ink); font-weight: 700; text-decoration: none; padding: 16px 24px; border-radius: 999px; font-size: 16px; }
.cta.ghost { background: transparent; color: var(--paper); border: 1px solid rgba(255,255,255,0.5); margin-left: 10px; }
.hero .foot { margin-top: 28px; font-size: 14px; color: var(--pebble); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 0 0 64px; }
.card { background: var(--cream); border-radius: 20px; padding: 26px; }
.card h3 { margin: 0 0 8px; font-size: 18px; letter-spacing: -0.3px; }
.card p { margin: 0; color: var(--charcoal); font-size: 15.5px; }
.card .n { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 999px; background: var(--wash); color: var(--burnt); font-weight: 800; font-size: 14px; margin-bottom: 14px; }

.prose { max-width: 720px; margin: 24px auto 96px; }
.prose h1 { font-size: clamp(34px, 5vw, 52px); letter-spacing: -1.4px; line-height: 1.05; margin: 32px 0 10px; font-weight: 900; }
.prose .meta { color: var(--slate); font-size: 15px; margin: 0 0 36px; }
.prose h2 { font-size: 22px; letter-spacing: -0.4px; margin: 44px 0 10px; }
.prose h3 { font-size: 17px; margin: 26px 0 6px; }
.prose p, .prose li { color: var(--charcoal); }
.prose ul { padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 14px 0 24px; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--fog); }
.prose th { color: var(--ink); font-weight: 700; }
.prose .note { background: var(--cream); border-radius: 14px; padding: 16px 18px; font-size: 15px; }
.prose .toc { background: var(--cream); border-radius: 16px; padding: 18px 22px; font-size: 15px; }
.prose .toc ol { margin: 8px 0 0; padding-left: 20px; columns: 2; column-gap: 28px; }
.prose .toc li { margin: 3px 0; }
.prose .toc a { text-decoration: none; color: var(--charcoal); }
.prose .toc a:hover { color: var(--ink); text-decoration: underline; }

.footer { border-top: 1px solid var(--fog); padding: 28px 0 44px; color: var(--slate); font-size: 14px; display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: center; justify-content: space-between; }
.footer .links { display: flex; gap: 20px; }
.footer a { text-decoration: none; }
.footer a:hover { text-decoration: underline; }

@media (max-width: 640px) {
  .nav .links { gap: 14px; font-size: 14px; }
  .cta.ghost { margin-left: 0; margin-top: 10px; }
  .prose .toc ol { columns: 1; }
}