:root {
  --green: #2d6a4f;
  --green-dark: #1b4332;
  --green-soft: #d8f3dc;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #f9fafb;
  --card: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
}

header.site {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}

.header-inner {
  max-width: 56rem;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--green-soft), #b7e4c7);
  border: 2px solid var(--green);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.logo svg {
  width: 26px;
  height: 26px;
  color: var(--green-dark);
}

.brand-text strong {
  display: block;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.brand-text span {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
}

nav.subnav {
  max-width: 56rem;
  margin: 0 auto;
  padding: 0.65rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: var(--card);
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: center;
  font-size: 0.9rem;
}

nav.subnav a {
  color: var(--green);
  text-decoration: none;
  font-weight: 600;
}

nav.subnav a:hover {
  text-decoration: underline;
}

nav.subnav a[aria-current="page"] {
  color: var(--green-dark);
  text-decoration: underline;
}

nav.subnav .sep {
  color: var(--line);
  user-select: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.1rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--green);
  color: #fff;
}

.btn-primary:hover {
  background: var(--green-dark);
}

.btn-ghost {
  background: transparent;
  color: var(--green-dark);
  border-color: var(--line);
}

.btn-ghost:hover {
  border-color: var(--green);
  background: var(--green-soft);
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

main.wide {
  max-width: 56rem;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.65rem, 3.5vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--green-dark);
}

.lede {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.prose p {
  margin: 0 0 1rem;
  color: #374151;
}

.prose ul,
.prose ol {
  margin: 0 0 1rem;
  padding-left: 1.35rem;
  color: #374151;
}

.prose li + li {
  margin-top: 0.35rem;
}

.prose h2 {
  margin: 2rem 0 0.65rem;
  font-size: 1.2rem;
  color: var(--green-dark);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose a {
  color: var(--green);
  font-weight: 500;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 2rem;
}

.callout {
  background: linear-gradient(135deg, #ecfdf5 0%, var(--green-soft) 100%);
  border: 1px solid #a7f3d0;
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  color: #374151;
}

.faq-item {
  margin-bottom: 1.35rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.faq-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.faq-item h2 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  color: var(--green-dark);
}

.faq-item p {
  margin: 0;
  color: #374151;
  font-size: 0.95rem;
}

footer.page {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
}

footer.page a {
  color: var(--green);
  text-decoration: none;
  font-weight: 500;
}

footer.page a:hover {
  text-decoration: underline;
}

code {
  background: #f3f4f6;
  padding: 0.12rem 0.35rem;
  border-radius: 6px;
  font-size: 0.88em;
}