:root {
  color-scheme: light;
  --bg: #f5f7f2;
  --ink: #17201b;
  --muted: #657269;
  --line: #dbe2d9;
  --panel: #ffffff;
  --accent: #146c5c;
  --accent-2: #d26a34;
  --blue: #376d9e;
  --shadow: 0 18px 60px rgba(21, 39, 30, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

/* --- Site nav --- */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
}

.site-nav a {
  text-decoration: none;
  color: inherit;
}

.site-nav .brand {
  color: var(--accent);
  font-weight: 800;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.site-nav .nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.site-nav .nav-links a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.site-nav .nav-cta {
  display: inline-block;
  background: var(--accent);
  color: #fff !important;
  font-weight: 800;
  font-size: 0.85rem;
  padding: 8px 16px;
  border-radius: 8px;
}

/* --- Blog hero / index --- */
.blog-hero {
  text-align: center;
  padding: 64px 28px 48px;
  max-width: 680px;
  margin: 0 auto;
}

.blog-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.06;
  margin: 0 0 14px;
  letter-spacing: -0.02em;
}

.blog-hero p {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px 80px;
}

.blog-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 26px;
  text-decoration: none;
  color: inherit;
  display: grid;
  gap: 10px;
  align-content: start;
  box-shadow: 0 4px 20px rgba(21, 39, 30, 0.06);
  transition: box-shadow 0.15s, transform 0.15s;
}

.blog-card:hover {
  box-shadow: 0 8px 36px rgba(21, 39, 30, 0.13);
  transform: translateY(-2px);
}

.blog-card h2 {
  font-size: 1.12rem;
  margin: 0;
  line-height: 1.3;
  color: var(--ink);
}

.blog-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.55;
}

.blog-card .read-more {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.88rem;
}

/* --- Tag pill --- */
.tag {
  display: inline-block;
  background: #eef7f2;
  color: var(--accent);
  border: 1px solid #c8ddd4;
  border-radius: 999px;
  padding: 2px 10px;
  font-weight: 700;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  align-self: start;
}

/* --- Article shell --- */
.article-shell {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 28px 80px;
}

.article-header {
  padding: 48px 0 0;
}

.article-meta {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 0.82rem;
  flex-wrap: wrap;
}

.article-shell h1 {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
}

.article-lead {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.65;
  margin: 0 0 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
}

/* --- Article body typography --- */
.article-body h2 {
  font-size: 1.4rem;
  margin: 48px 0 12px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.article-body h3 {
  font-size: 1.08rem;
  margin: 32px 0 8px;
  color: var(--ink);
}

.article-body p {
  margin: 0 0 18px;
  line-height: 1.72;
  color: var(--ink);
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px;
  padding-left: 22px;
}

.article-body li {
  background: none;
  border: none;
  border-radius: 0;
  padding: 0;
  color: var(--ink);
  line-height: 1.65;
  margin-bottom: 8px;
  list-style: disc;
}

.article-body ol li {
  list-style: decimal;
}

/* --- Static pages --- */
.page-shell {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 28px 80px;
}

.page-header {
  padding: 54px 0 28px;
  border-bottom: 1px solid var(--line);
}

.page-header h1 {
  margin: 16px 0;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.page-header p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.page-body {
  padding-top: 28px;
}

.page-body h2 {
  margin: 34px 0 10px;
  font-size: 1.25rem;
  line-height: 1.2;
}

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

.page-body a {
  color: var(--accent);
  font-weight: 700;
}

/* --- Comparison table --- */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0 36px;
  font-size: 0.93rem;
  border-radius: 8px;
  overflow: hidden;
}

.compare-table th,
.compare-table td {
  text-align: left;
  padding: 12px 16px;
  border: 1px solid var(--line);
}

.compare-table th {
  background: #eef7f2;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.76rem;
  letter-spacing: 0.05em;
}

.compare-table tr:nth-child(even) td {
  background: #f9fbf8;
}

/* --- Callout box --- */
.callout {
  border-left: 4px solid var(--accent);
  background: #eef7f2;
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  margin: 28px 0;
}

.callout p {
  margin: 0;
  color: var(--ink);
}

.callout.warning {
  border-color: var(--accent-2);
  background: #fdf2ec;
}

/* --- CTA block --- */
.cta-block {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 36px 32px;
  margin: 56px 0 0;
  text-align: center;
  box-shadow: var(--shadow);
}

.cta-block h2 {
  font-size: 1.5rem;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.cta-block p {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 1rem;
}

.cta-button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: 8px;
}

.cta-button:hover {
  background: #115a4d;
}

/* --- Example box --- */
.example-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px 22px;
  margin: 24px 0;
}

.example-box h3 {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.78rem;
}

.example-box p {
  margin: 0;
  font-size: 0.95rem;
}

/* --- Site footer --- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
}

@media (max-width: 640px) {
  .article-shell {
    padding: 0 18px 60px;
  }

  .page-shell {
    padding: 0 18px 60px;
  }

  .site-nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 18px;
  }

  .site-nav .nav-links {
    flex-wrap: wrap;
    gap: 12px 16px;
  }

  .blog-grid {
    padding: 0 18px 60px;
  }

  .cta-block {
    padding: 24px 20px;
  }
}