:root {
  --primary-blue: #00AEEF;
  --deep-blue: #0083CA;
  --light-blue: #38B6FF;
  --black: #000000;
  --bg: #F5F8FA;
  --text: #1A1A1A;
  --muted: #5A5A5A;
  --white: #FFFFFF;
  --border: #E1E8ED;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  line-height: 1.65;
}

h1, h2, h3 {
  font-family: 'Big Shoulders', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--deep-blue);
  line-height: 1.1;
}

h1 { font-size: 2.6rem; }
h2 { font-size: 1.6rem; margin-top: 2.5rem; }
h3 { font-size: 1.15rem; color: var(--text); }

a { color: var(--primary-blue); }

.top-bar {
  background: var(--primary-blue);
  color: white;
  padding: 0.5rem 1.5rem;
  font-size: 0.85rem;
  text-align: center;
}

.notice-banner {
  background: #FFF6E5;
  border: 1px solid #E8C27A;
  color: #6B4E00;
  padding: 0.85rem 1.25rem;
  font-size: 0.85rem;
  border-radius: 8px;
  max-width: 900px;
  margin: 1.5rem auto 0;
}

header.page-head {
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1rem;
}

.rc-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.back-link {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  color: var(--primary-blue);
  text-decoration: none;
  margin-bottom: 0.6rem;
}

.back-link:hover { text-decoration: underline; }

.updated {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  color: var(--muted);
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

p, li { color: var(--text); }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.price {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1.4rem;
  color: var(--deep-blue);
  font-weight: 600;
}

.price-note {
  font-size: 0.78rem;
  color: var(--muted);
  font-family: 'IBM Plex Mono', monospace;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 1rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.spec-list li { padding: 0.15rem 0; }

.buy-btn {
  display: inline-block;
  background: var(--primary-blue);
  color: white;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.buy-btn:hover { background: var(--deep-blue); }

footer.compliance-footer {
  border-top: 1px solid var(--border);
  margin-top: 2.5rem;
  padding: 1.5rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  font-size: 0.85rem;
  color: var(--muted);
}

footer.compliance-footer nav a {
  margin-right: 1.25rem;
  color: var(--deep-blue);
  text-decoration: none;
  font-weight: 500;
}

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

section + section { margin-top: 0.5rem; }