:root {
  --jade-900: #08302a;
  --jade-800: #0c4b3e;
  --jade-700: #106b57;
  --jade-500: #22a98a;
  --ink-900: #0f1f1b;
  --ink-700: #33443e;
  --ink-500: #5d6d66;
  --line: #e4eae7;
  --bg: #f6f8f7;
  --surface: #ffffff;
  --sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --display: "Fraunces", Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-900);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--jade-700); font-weight: 700; text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(246, 248, 247, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.top-inner,
.wrap,
.foot-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 16px 24px;
}

.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand:hover { text-decoration: none; }

.brand span span { color: var(--jade-700); }

.nav { display: flex; gap: 16px; flex-wrap: wrap; }

.wrap { padding-top: 40px; padding-bottom: 64px; }

h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.15;
  margin: 0 0 8px;
}

.meta {
  color: var(--ink-500);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 32px;
}

h2 {
  font-size: 1.15rem;
  margin: 32px 0 8px;
  letter-spacing: -0.02em;
}

p, li { color: var(--ink-700); }
ul { padding-left: 1.2em; }
li { margin: 6px 0; }

.foot {
  border-top: 1px solid var(--line);
  background: #fbfcfb;
}

.foot-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--ink-500);
  font-size: 13px;
}