:root {
  color-scheme: light;
  --ink: #202124;
  --muted: #5f6368;
  --line: #dadce0;
  --paper: #ffffff;
  --soft: #f6f8fb;
  --accent: #0b6bcb;
  --accent-2: #00866d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

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

.site-header,
.site-footer {
  align-items: center;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  padding: 16px clamp(16px, 4vw, 48px);
}

.site-footer {
  border-bottom: 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: block;
}

.brand {
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 16px;
}

main {
  margin: 0 auto;
  max-width: 1040px;
  padding: 32px clamp(16px, 4vw, 48px) 56px;
}

.hero {
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.15;
  margin: 0 0 12px;
}

.hero p {
  color: var(--muted);
  max-width: 760px;
}

.grid {
  display: grid;
  gap: 16px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 16px;
  grid-template-columns: 180px 1fr;
  padding: 16px;
}

.card img,
.product-image {
  aspect-ratio: 1;
  border-radius: 8px;
  object-fit: cover;
  width: 100%;
}

.card-text {
  grid-template-columns: 1fr;
}

.eyebrow {
  color: var(--accent-2);
  font-size: 0.85rem;
  font-weight: 700;
  margin: 0 0 4px;
}

.price {
  font-weight: 800;
}

.article {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(20px, 5vw, 40px);
}

.decision-table-wrap {
  margin: 20px 0;
  overflow-x: auto;
}

.decision-table {
  border-collapse: collapse;
  min-width: 620px;
  width: 100%;
}

.decision-table th,
.decision-table td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.decision-table th {
  background: var(--soft);
  font-weight: 800;
  width: 25%;
}

.decision-guide-note {
  color: var(--muted);
}

.practical-guide pre {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--soft);
  overflow-x: auto;
  max-width: 100%;
  font-size: 0.88rem;
  line-height: 1.6;
  tab-size: 4;
}

.example-disclosure {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  color: var(--muted);
}

.cta {
  background: var(--accent);
  border-radius: 8px;
  color: white;
  display: inline-block;
  font-weight: 800;
  margin-top: 16px;
  padding: 12px 18px;
  text-decoration: none;
}

.notice {
  background: #fff7e6;
  border: 1px solid #ffd591;
  border-radius: 8px;
  padding: 12px 14px;
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .card {
    grid-template-columns: 1fr;
  }
}