:root {
  --bg: #f6f8f4;
  --surface: #ffffff;
  --surface-soft: #eef6f0;
  --border: #d5e4db;
  --ink: #16211d;
  --muted: #58655f;
  --accent: #0b7a5a;
  --accent-dark: #07543d;
  --accent-soft: #e6f4ed;
  --gold: #c47a1d;
  --warning-bg: #fff6ea;
  --warning-border: #f0c48a;
  --shadow: 0 24px 60px rgba(15, 35, 28, 0.08);
  --radius: 20px;
  --radius-sm: 14px;
  --max: 860px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(11, 122, 90, 0.08), transparent 35%),
    radial-gradient(circle at top left, rgba(196, 122, 29, 0.07), transparent 30%),
    var(--bg);
  color: var(--ink);
  line-height: 1.75;
}

a {
  color: var(--accent);
}

img {
  max-width: 100%;
}

.site-banner {
  background: linear-gradient(90deg, var(--accent-dark), var(--accent));
  color: #f2faf6;
  text-align: center;
  padding: 10px 16px;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(246, 248, 244, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(213, 228, 219, 0.9);
}

.site-header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.logo {
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 600;
}

.nav a:hover {
  color: var(--accent);
}

.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 24px 30px;
}

.hero-card {
  background: linear-gradient(145deg, rgba(230, 244, 237, 0.94), rgba(255, 255, 255, 0.96));
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 44px 38px;
  box-shadow: var(--shadow);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(11, 122, 90, 0.1);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 18px 0 14px;
  font-family: "Merriweather", Georgia, serif;
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.hero-sub {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 0.94rem;
}

.page-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 80px;
}

.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 38px 34px;
}

.article-card h2,
.faq-section h2,
.related-section h2 {
  font-family: "Merriweather", Georgia, serif;
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 42px 0 16px;
}

.article-card h2:first-of-type {
  margin-top: 0;
}

.article-card h3 {
  margin: 28px 0 10px;
  font-size: 1.16rem;
  line-height: 1.4;
}

.article-card p,
.article-card li,
.faq-answer p,
.related-card p {
  color: var(--muted);
}

.article-card ul,
.article-card ol {
  padding-left: 22px;
  margin: 18px 0;
}

.article-card li {
  margin-bottom: 10px;
}

.toc {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  margin: 0 0 34px;
}

.toc-title {
  margin: 0 0 10px;
  font-size: 0.8rem;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
}

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

.toc li + li {
  margin-top: 8px;
}

.toc a {
  text-decoration: none;
  font-weight: 600;
}

.callout {
  margin: 24px 0;
  padding: 22px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-soft);
}

.callout-title {
  margin: 0 0 8px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
  color: var(--accent-dark);
}

.callout p:last-child {
  margin-bottom: 0;
}

.callout.warning {
  background: var(--warning-bg);
  border-color: var(--warning-border);
}

.callout.warning .callout-title {
  color: #8f4f08;
}

.mini-grid,
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.mini-card,
.related-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: 20px;
}

.mini-card h3,
.related-card h3 {
  margin-top: 0;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin: 24px 0 30px;
}

.metric {
  background: linear-gradient(180deg, #ffffff, #f8fbf8);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}

.metric strong {
  display: block;
  font-size: 1.35rem;
  color: var(--ink);
}

.metric span {
  color: var(--muted);
  font-size: 0.92rem;
}

.table-wrap {
  overflow-x: auto;
  margin: 22px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
  background: #ffffff;
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  background: #f3f8f4;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-dark);
}

tr:last-child td {
  border-bottom: 0;
}

.cta-panel,
.faq-section,
.related-section {
  margin-top: 26px;
}

.cta-panel {
  background: linear-gradient(145deg, var(--accent-dark), var(--accent));
  color: #effaf4;
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  margin: 0 0 10px;
  font-family: "Merriweather", Georgia, serif;
}

.cta-panel p {
  margin: 0 0 16px;
  color: rgba(239, 250, 244, 0.88);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 18px;
  border-radius: 999px;
  background: #ffffff;
  color: var(--accent-dark);
  text-decoration: none;
  font-weight: 800;
}

.button:hover {
  background: #f1f7f3;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-item + .faq-item {
  margin-top: 12px;
}

.faq-question {
  width: 100%;
  border: 0;
  background: none;
  padding: 18px 20px;
  text-align: left;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.faq-question:hover,
.faq-question.active {
  background: var(--accent-soft);
}

.faq-answer {
  display: none;
  padding: 0 20px 18px;
  background: var(--accent-soft);
}

.related-card {
  text-decoration: none;
}

.related-card span {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--gold);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
}

.related-card h3 {
  color: var(--ink);
  font-size: 1.08rem;
}

.footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 60px;
}

.footer-card {
  border-top: 1px solid var(--border);
  padding-top: 22px;
  color: var(--muted);
  font-size: 0.93rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
}

.footer-links a {
  text-decoration: none;
  color: var(--accent);
  font-weight: 600;
}

@media (max-width: 720px) {
  .site-header-inner,
  .hero,
  .page-wrap,
  .footer {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-card,
  .article-card,
  .cta-panel {
    padding: 24px 20px;
  }

  .nav {
    display: none;
  }

  .hero h1 {
    font-size: 2rem;
  }
}