/* VoltGear Review — professional editorial layout v3 (2026-08-04, qian-manager rewrite) */
:root {
  --bg: #ffffff;
  --bg-subtle: #f6f7f8;
  --fg: #1a2027;
  --fg-muted: #5b6470;
  --border: #e3e7eb;
  --accent: #0f766e;
  --accent-bg: #effaf8;
  --maxw-read: 720px;
  --maxw-site: 1120px;
  --radius: 10px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
h1, h2, h3, h4 {
  font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
  line-height: 1.25;
  color: var(--fg);
  margin: 0 0 0.6em;
}
a { color: var(--accent); }
img { max-width: 100%; display: block; }

/* ---------- Header ---------- */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px) saturate(180%);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 1rem;
  padding: 0.7rem max(1.25rem, calc((100% - var(--maxw-site)) / 2));
}
.header-inner { display: contents; }
.site-title a {
  font-family: "Source Serif 4", Georgia, serif;
  font-weight: 700; font-size: 1.3rem;
  color: var(--fg); text-decoration: none;
  white-space: nowrap;
}
nav { display: flex; flex-wrap: wrap; gap: 0.35rem 0.4rem; margin-left: auto; }
nav a {
  color: var(--fg-muted); text-decoration: none;
  font-size: 0.85rem; font-weight: 500;
  padding: 0.28rem 0.7rem; border-radius: 999px;
  white-space: nowrap; line-height: 1.4;
  transition: background 0.15s ease, color 0.15s ease;
}
nav a:hover { background: var(--accent-bg); color: var(--accent); text-decoration: none; }

/* ---------- Shared containers ---------- */
main { display: block; }
.container { max-width: var(--maxw-site); margin: 0 auto; padding: 0 1.25rem; }
main > section, main > article, main > div { max-width: var(--maxw-site); margin-left: auto; margin-right: auto; padding-left: 1.25rem; padding-right: 1.25rem; }

/* ---------- Home: hero ---------- */
.hero { padding: 3.2rem 1.25rem 1.6rem; }
.hero h1 { font-size: 2.1rem; max-width: 16em; }
.hero .lead { color: var(--fg-muted); font-size: 1.08rem; max-width: 42em; margin: 0; }

/* ---------- Home: review grid ---------- */
.reviews-list { padding-top: 1rem; }
.reviews-list h2 { font-size: 1.35rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
.review-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
  margin: 1.4rem 0 2.5rem;
}
.review-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.review-card:hover { box-shadow: 0 6px 24px rgba(16,24,40,0.08); transform: translateY(-2px); }
.review-card a { display: block; color: inherit; text-decoration: none; }
.review-thumb { aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-subtle); }
.review-thumb img { width: 100%; height: 100%; object-fit: cover; }
.review-card .category, .review-card h3, .review-card p { margin-left: 1.1rem; margin-right: 1.1rem; }
.review-card .category {
  display: inline-block; margin-top: 0.9rem;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent);
}
.review-card h3 { font-size: 1.15rem; margin-top: 0.25rem; }
.review-card p { color: var(--fg-muted); font-size: 0.92rem; margin-top: 0; padding-bottom: 1.1rem; }

/* ---------- Home: about snippet ---------- */
.about-snippet {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem 1.8rem;
  margin-bottom: 3rem;
}
.about-snippet h2 { font-size: 1.25rem; }
.about-snippet p { color: var(--fg-muted); max-width: 46em; }
.cta-link { font-weight: 600; }

/* ---------- Article pages ---------- */
.article-header, .article-body { max-width: var(--maxw-read); margin-left: auto; margin-right: auto; padding-left: 1.25rem; padding-right: 1.25rem; }
.article-header { padding-top: 2.6rem; }
.category-label {
  display: inline-block; font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 0.6rem;
}
.article-header h1 { font-size: 2rem; }
.meta { color: var(--fg-muted); font-size: 0.85rem; margin-bottom: 1.4rem; }
.article-hero-img { border-radius: var(--radius); overflow: hidden; margin: 0 0 1.8rem; aspect-ratio: 16 / 9; background: var(--bg-subtle); }
.article-hero-img img { width: 100%; height: 100%; object-fit: cover; }
.article-body h2 { font-size: 1.45rem; margin-top: 2.2rem; }
.article-body h3 { font-size: 1.15rem; margin-top: 1.8rem; }
.article-body p { margin: 0 0 1.1rem; }
.article-body ul, .article-body ol { color: var(--fg); padding-left: 1.3rem; }
.article-body li { margin-bottom: 0.35rem; }
.inline-img { border-radius: var(--radius); overflow: hidden; margin: 1.4rem 0; }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.2rem 0 1.6rem; font-size: 0.92rem; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 0.5rem 0.7rem; text-align: left; }
.article-body th { background: var(--bg-subtle); }
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.2rem 0 1.6rem; }
.pros, .cons { border-radius: var(--radius); padding: 1rem 1.2rem; font-size: 0.94rem; }
.pros { background: #f0faf4; border: 1px solid #cdeeda; }
.cons { background: #fdf3f3; border: 1px solid #f3d7d7; }
.pros h4, .cons h4 { font-family: Inter, sans-serif; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.4rem; }
.pros h4 { color: #15803d; } .cons h4 { color: #b91c1c; }
.pros ul, .cons ul { margin: 0; padding-left: 1.1rem; }
.verdict {
  border-left: 4px solid var(--accent);
  background: var(--accent-bg);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.1rem 1.3rem; margin: 1.6rem 0 2.2rem;
}
.verdict h2, .verdict h3 { margin-top: 0; font-size: 1.2rem; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--border); margin-top: 2rem; background: var(--bg-subtle);
  text-align: center;
  padding: 1.6rem max(1.25rem, calc((100% - var(--maxw-site)) / 2));
}
.footer-inner { display: contents; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem 1.1rem; margin-bottom: 0.7rem; }
.footer-links a { color: var(--fg-muted); font-size: 0.85rem; text-decoration: none; }
.footer-links a:hover { color: var(--accent); }
.copyright { color: var(--fg-muted); font-size: 0.8rem; }

/* ---------- Static pages (about/contact/legal) ---------- */
.page-body, main > section.page { max-width: var(--maxw-read); margin-left: auto; margin-right: auto; padding: 2.4rem 1.25rem 3rem; }

/* ---------- Mobile ---------- */
@media (max-width: 720px) {
  .review-grid { grid-template-columns: 1fr; }
  .pros-cons { grid-template-columns: 1fr; }
  .hero { padding-top: 2.2rem; }
  .hero h1 { font-size: 1.6rem; }
  .article-header h1 { font-size: 1.55rem; }
}
@media (max-width: 640px) {
  header { flex-wrap: wrap; gap: 0.3rem; padding: 0.55rem 1rem; }
  nav { margin-left: 0; width: 100%; }
}