:root {
  --brand: #1f7a34;
  --brand-dark: #145726;
  --brand-light: #3da85a;
  --brand-soft: #eef8f0;
  --brand-muted: #d8f0de;
  --accent: #0ea5a4;
  --ink: #142018;
  --ink-secondary: #3d5244;
  --ink-muted: #6b8572;
  --line: #dce8df;
  --surface: #ffffff;
  --shadow-sm: 0 1px 2px rgba(20, 32, 24, 0.06);
  --shadow-md: 0 12px 40px rgba(31, 122, 52, 0.12);
  --shadow-lg: 0 24px 64px rgba(20, 32, 24, 0.14);
  --radius: 18px;
  --radius-sm: 12px;
  --content: 760px;
  --wide: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 28px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover {
  color: var(--ink);
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.brand-title {
  display: block;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.brand-sub {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-muted);
  margin-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-secondary);
  padding: 8px 14px;
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.site-nav a:hover {
  color: var(--ink);
  background: var(--brand-soft);
}

.site-nav a.active {
  color: var(--brand-dark);
  background: var(--brand-muted);
}

.hero {
  background:
    radial-gradient(ellipse 80% 70% at 50% -20%, rgba(31, 122, 52, 0.16), transparent 70%),
    linear-gradient(180deg, var(--brand-soft) 0%, #fff 100%);
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  max-width: var(--content);
  margin: 0 auto;
  padding: 48px 28px 40px;
}

.hero-copy {
  max-width: 34rem;
}

.hero-kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(31, 122, 52, 0.1);
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.hero-lead {
  margin: 0;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-secondary);
}

.hero-meta {
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--ink-muted);
}

.hero-compact .hero-inner {
  padding-top: 52px;
  padding-bottom: 44px;
}

.main {
  flex: 1;
}

.container {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 28px;
}

.main-body {
  padding: 52px 0 72px;
}

.section {
  margin-bottom: 52px;
}

.section:last-child {
  margin-bottom: 0;
}

.section-title {
  margin: 0 0 18px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-dark);
}

.section h2 {
  margin: 0 0 16px;
  font-size: 26px;
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.section p {
  margin: 0 0 16px;
  color: var(--ink-secondary);
}

.section ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.section li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 12px;
  color: var(--ink-secondary);
}

.section li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-light);
}

.section strong {
  color: var(--ink);
  font-weight: 600;
}

.content-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.content-card h3 {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 600;
}

.content-card p,
.content-card li {
  font-size: 15px;
  color: var(--ink-secondary);
}

.content-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.content-card li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
}

.content-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-light);
}

.content-stack {
  display: grid;
  gap: 14px;
}

.resource-list {
  display: grid;
  gap: 12px;
}

.resource-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.resource-link:hover {
  border-color: var(--brand-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  color: var(--ink);
}

.resource-link .info strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 3px;
}

.resource-link .info span {
  font-size: 14px;
  color: var(--ink-muted);
}

.resource-link .arrow {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand);
  display: grid;
  place-items: center;
  font-size: 18px;
  line-height: 1;
}

.site-footer {
  margin-top: auto;
  background: #101812;
  color: rgba(255, 255, 255, 0.72);
}

.footer-inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 32px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-brand {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
}

.footer-nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.footer-nav a:hover {
  color: #fff;
}

.footer-copy {
  margin: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.48);
}

@media (max-width: 720px) {
  .header-inner {
    height: auto;
    padding: 14px 20px;
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero-inner,
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .main-body {
    padding: 36px 0 56px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}