:root {
  color-scheme: light;
  --brand: #0f8f83;
  --brand-dark: #0b6f67;
  --text: #1f2937;
  --muted: #4b5563;
  --border: #d1d5db;
  --bg: #f7faf9;
  --card: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.hero,
.card,
.section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(15, 143, 131, 0.08);
}

.hero {
  padding: 28px;
  margin-bottom: 24px;
}

.section {
  padding: 28px;
  margin-top: 24px;
}

.card {
  padding: 24px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.nav a {
  text-decoration: none;
  color: var(--brand-dark);
  font-weight: bold;
  padding: 8px 12px;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  border-radius: 999px;
}

.eyebrow {
  display: inline-block;
  color: var(--brand-dark);
  font-weight: bold;
  margin-bottom: 8px;
}

h1,
h2,
h3 {
  color: var(--brand);
  margin-top: 0;
}

h1 {
  font-size: 34px;
  line-height: 1.2;
  margin-bottom: 12px;
}

h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

p,
li {
  color: var(--muted);
  font-size: 16px;
}

.lead {
  font-size: 18px;
  max-width: 760px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.button {
  display: inline-block;
  text-decoration: none;
  background: var(--brand);
  color: #ffffff;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: bold;
}

.button.secondary {
  background: #e5f6f4;
  color: var(--brand-dark);
  border: 1px solid #a7f3d0;
}

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.text-link {
  font-weight: bold;
  text-decoration: none;
}

.notice {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  border-radius: 12px;
  padding: 16px;
  margin: 20px 0;
}

.clean-list {
  padding-left: 18px;
}

.footer {
  margin-top: 24px;
  font-size: 14px;
  color: #6b7280;
}

@media (max-width: 640px) {
  .container {
    padding: 16px 14px 36px;
  }

  .hero,
  .section,
  .card {
    padding: 20px;
  }

  h1 {
    font-size: 28px;
  }
}