:root {
  color-scheme: light;
  --ink: #102a2d;
  --muted: #5d6d70;
  --teal: #006d69;
  --teal-dark: #004e4b;
  --line: #dce7e6;
  --paper: #ffffff;
  --wash: #f3f8f7;
}

* { box-sizing: border-box; }

html { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--wash); color: var(--ink); }
body { margin: 0; font-size: 16px; line-height: 1.65; }
a { color: var(--teal); text-underline-offset: 3px; }
a:hover { color: var(--teal-dark); }

.topbar { background: var(--paper); border-bottom: 1px solid var(--line); }
.topbar-inner { max-width: 960px; margin: 0 auto; padding: 18px 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { color: var(--ink); text-decoration: none; font-size: 1.45rem; letter-spacing: -0.035em; }
.brand strong { font-weight: 800; }
.brand span { font-weight: 400; }
nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
nav a { color: var(--muted); text-decoration: none; font-size: .93rem; }
nav a[aria-current="page"] { color: var(--teal); font-weight: 700; }

main { max-width: 800px; margin: 0 auto; padding: 64px 24px 80px; }
.eyebrow { color: var(--teal); font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
h1 { margin: 8px 0 12px; font-size: clamp(2.15rem, 7vw, 3.7rem); line-height: 1.06; letter-spacing: -.045em; }
.lede { margin: 0 0 36px; color: var(--muted); font-size: 1.15rem; max-width: 660px; }
.meta { padding: 14px 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); color: var(--muted); }

.grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; margin-top: 36px; }
.card { display: block; min-height: 180px; padding: 26px; border: 1px solid var(--line); border-radius: 20px; background: var(--paper); color: var(--ink); text-decoration: none; box-shadow: 0 9px 30px rgba(16,42,45,.05); }
.card:hover { border-color: #a9cac7; transform: translateY(-1px); }
.card h2 { margin: 0 0 8px; font-size: 1.25rem; }
.card p { margin: 0; color: var(--muted); }
.card .arrow { display: block; margin-top: 18px; color: var(--teal); font-weight: 700; }

article { margin-top: 38px; }
article section { margin: 0 0 34px; }
h2 { margin: 0 0 10px; font-size: 1.38rem; line-height: 1.25; }
h3 { margin: 22px 0 6px; font-size: 1.05rem; }
p { margin: 0 0 14px; }
ul, ol { padding-left: 24px; }
li { margin-bottom: 8px; }
.callout { margin: 28px 0; padding: 22px; border-left: 4px solid var(--teal); border-radius: 4px 14px 14px 4px; background: #e6f2f1; }
.button { display: inline-block; margin-top: 8px; padding: 12px 18px; border-radius: 12px; background: var(--teal); color: white; text-decoration: none; font-weight: 750; }
.button:hover { background: var(--teal-dark); color: white; }
footer { border-top: 1px solid var(--line); background: var(--paper); }
.footer-inner { max-width: 960px; margin: 0 auto; padding: 24px; color: var(--muted); font-size: .9rem; }

@media (max-width: 680px) {
  .topbar-inner { align-items: flex-start; flex-direction: column; gap: 10px; }
  main { padding-top: 44px; }
  .grid { grid-template-columns: 1fr; }
}