:root {
  color-scheme: light;
  --ink: #10241a;
  --muted: #587064;
  --green: #28cc67;
  --green-dark: #08783b;
  --surface: rgba(255, 255, 255, 0.78);
  --line: rgba(16, 36, 26, 0.10);
  --shadow: 0 24px 70px rgba(17, 103, 58, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 10%, rgba(255,255,255,.95), transparent 30rem),
    radial-gradient(circle at 90% 5%, rgba(40,204,103,.22), transparent 30rem),
    linear-gradient(145deg, #effff5 0%, #b8f5cf 100%);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
}

a { color: var(--green-dark); }

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 64px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 800;
  text-decoration: none;
}

.mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: white;
  border-radius: 14px;
  background: linear-gradient(145deg, #36df78, #0aa24c);
  box-shadow: 0 10px 25px rgba(25, 184, 88, .25);
}

nav { display: flex; gap: 8px; }

nav a {
  padding: 9px 13px;
  border-radius: 999px;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 700;
  text-decoration: none;
}

nav a:hover, nav a:focus-visible {
  color: var(--ink);
  background: rgba(255,255,255,.65);
  outline: none;
}

.hero { max-width: 720px; margin: 70px 0 42px; }

.eyebrow {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0 0 18px;
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: .98;
  letter-spacing: -.055em;
}

.lead {
  max-width: 690px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.card, article {
  border: 1px solid rgba(255,255,255,.75);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.card {
  display: block;
  min-height: 210px;
  padding: 28px;
  color: var(--ink);
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}

.card:hover { transform: translateY(-3px); box-shadow: 0 28px 80px rgba(17,103,58,.18); }
.card h2 { margin: 44px 0 6px; font-size: 1.45rem; }
.card p { margin: 0; color: var(--muted); }
.arrow { float: right; font-size: 1.5rem; }

article { padding: clamp(24px, 6vw, 58px); }
article h1 { font-size: clamp(2.3rem, 6vw, 4.5rem); }
article h2 { margin: 2.2em 0 .55em; font-size: 1.35rem; line-height: 1.25; }
article h3 { margin: 1.5em 0 .35em; }
article p, article li { color: #334c40; }
article ul { padding-left: 1.25rem; }

.notice {
  margin: 24px 0;
  padding: 18px 20px;
  border-left: 4px solid var(--green);
  border-radius: 8px 18px 18px 8px;
  background: rgba(40,204,103,.10);
}

.meta {
  display: inline-flex;
  margin: 0 0 28px;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--muted);
  background: rgba(16,36,26,.06);
  font-size: .88rem;
}

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  color: white;
  background: var(--ink);
  font-weight: 750;
  text-decoration: none;
}
.button.secondary { color: var(--ink); background: rgba(16,36,26,.08); }

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 28px;
  padding: 18px 4px;
  color: var(--muted);
  font-size: .88rem;
}

@media (max-width: 640px) {
  .shell { width: min(100% - 22px, 920px); padding-top: 14px; }
  header { align-items: flex-start; margin-bottom: 24px; }
  nav { flex-direction: column; align-items: flex-end; }
  nav a { padding: 4px 8px; }
  .hero { margin-top: 52px; }
  .grid { grid-template-columns: 1fr; }
  .card { min-height: 170px; }
  article { border-radius: 24px; }
  footer { flex-direction: column; }
}