/* ClearCheck Production Stylesheet — Mobile-First & CLS <= 0.1 Locked */
:root {
  --bg: #0b0f19;
  --surface: #111827;
  --surface-2: #1e293b;
  --border: #334155;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #6366f1;
  --emerald: #10b981;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Inter, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  padding-bottom: 72px;
}
a { color: #818cf8; text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 1.25rem; }
.article-wrap { max-width: 760px; margin: 0 auto; padding: 2rem 1.25rem; }
header.site-header {
  background: rgba(11, 15, 25, 0.95);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(8px);
}
.nav-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
}
.brand { font-weight: 800; font-size: 1.25rem; color: #fff; letter-spacing: -0.02em; }
.brand span { color: var(--emerald); font-size: 0.75rem; margin-left: 0.5rem; font-family: monospace; }
nav.nav-links { display: flex; flex-wrap: wrap; gap: 1rem; font-size: 0.88rem; }
nav.nav-links a { color: #cbd5e1; font-weight: 500; }
nav.nav-links a:hover { color: #fff; text-decoration: none; }
.hero-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; margin: 2rem 0; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.card img, .hero-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}
.card-body { padding: 1.25rem; display: flex; flex-direction: column; gap: 0.6rem; flex: 1; }
.badge {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #a5b4fc;
  font-weight: 700;
}
h1 { font-size: clamp(1.65rem, 3.5vw, 2.35rem); line-height: 1.25; margin: 0.5rem 0 0.85rem; color: #fff; }
h2 { font-size: 1.35rem; margin: 1.75rem 0 0.75rem; color: #fff; }
p { margin-bottom: 1.15rem; color: #e2e8f0; font-size: 1.03rem; }
.byline {
  font-size: 0.88rem;
  color: var(--muted);
  padding: 0.85rem 0;
  margin-bottom: 1.25rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.triangulation-box {
  background: #0f172a;
  border: 1px solid #4338ca;
  border-radius: 12px;
  padding: 1.25rem;
  margin: 1.5rem 0;
}
.triangulation-box h3 { font-size: 0.9rem; text-transform: uppercase; color: #a5b4fc; margin-bottom: 0.75rem; }
.triangulation-box ul { padding-left: 1.2rem; color: #cbd5e1; font-size: 0.94rem; }
.triangulation-box li { margin-bottom: 0.5rem; }
/* CLS-Zero Reserved Ad Containers (Mandatory min-height: 250px) */
.ad-slot-inarticle {
  width: 100%;
  min-height: 250px;
  background: #0f172a;
  border: 1px dashed #334155;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  contain: layout style;
  margin: 1.75rem 0;
  padding: 0.75rem;
}
.ad-slot-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #64748b;
  margin-bottom: 0.5rem;
  font-family: monospace;
}
.ad-sticky-anchor {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  min-height: 56px;
  background: rgba(15, 23, 42, 0.97);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.4rem 1rem;
  z-index: 50;
  contain: layout style;
}
footer.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding: 2.5rem 0;
  color: var(--muted);
  font-size: 0.88rem;
}