:root {
  color-scheme: light;
  --ink: #173d37;
  --muted: #58716b;
  --line: #cfe0dc;
  --paper: #f7fbfa;
  --surface: #ffffff;
  --accent: #167669;
  --accent-dark: #0f5a50;
  --danger: #a83a3a;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-size: 16px; line-height: 1.65; }
a { color: var(--accent-dark); text-underline-offset: .18em; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; max-width: 1080px; margin: 0 auto; padding: 22px 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 750; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; color: white; background: var(--accent); font-weight: 850; }
nav { display: flex; flex-wrap: wrap; gap: 18px; }
nav a { color: var(--muted); font-weight: 650; text-decoration: none; }
nav a[aria-current="page"] { color: var(--accent-dark); }
main { width: min(880px, calc(100% - 40px)); margin: 48px auto 80px; }
main.narrow { width: min(680px, calc(100% - 40px)); }
.eyebrow { margin: 0 0 8px; color: var(--accent); font-size: .82rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1, h2 { line-height: 1.18; letter-spacing: -.025em; }
h1 { max-width: 780px; margin: 0; font-size: clamp(2.35rem, 8vw, 4.7rem); }
h2 { margin-top: 0; font-size: 1.45rem; }
.lede { max-width: 760px; margin: 22px 0 12px; color: var(--muted); font-size: 1.2rem; }
.meta { color: var(--muted); }
section { margin-top: 34px; padding-top: 30px; border-top: 1px solid var(--line); }
.notice { margin: 30px 0; padding: 20px 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.notice p:last-child { margin-bottom: 0; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 42px; }
.card { display: grid; gap: 10px; min-height: 170px; padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); color: var(--ink); text-decoration: none; transition: transform .18s ease, border-color .18s ease; }
.card:hover { transform: translateY(-3px); border-color: var(--accent); }
.card strong { font-size: 1.2rem; }
.card span { color: var(--muted); }
form { display: grid; gap: 16px; margin-top: 30px; }
label { display: grid; gap: 7px; font-weight: 700; }
input, button, .button { min-height: 48px; border-radius: 12px; font: inherit; }
input { width: 100%; padding: 12px 14px; border: 1px solid #86a89f; background: white; color: var(--ink); }
input:focus { outline: 3px solid #bfe9df; border-color: var(--accent); }
button, .button { display: inline-flex; align-items: center; justify-content: center; width: fit-content; padding: 11px 18px; border: 0; background: var(--accent); color: white; font-weight: 800; text-decoration: none; cursor: pointer; }
button:hover, .button:hover { background: var(--accent-dark); }
button:disabled { cursor: wait; opacity: .65; }
button.danger { background: var(--danger); }
[hidden] { display: none !important; }
.status { min-height: 1.65em; color: var(--muted); font-weight: 650; }
footer { max-width: 1080px; margin: 0 auto; padding: 28px; border-top: 1px solid var(--line); color: var(--muted); }

@media (max-width: 760px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  nav { gap: 12px 16px; }
  main { margin-top: 26px; }
  .card-grid { grid-template-columns: 1fr; }
  .card { min-height: auto; }
}