:root {
  --bg: #fbfbfd;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --accent: #0071e3;
  --dark: #161617;
  --card: #ffffff;
  --border: #e8e8ed;
  --subtle: #f5f5f7;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Arial, sans-serif; color: var(--text); background: var(--bg); line-height: 1.5; -webkit-font-smoothing: antialiased; }
.container { max-width: 980px; margin: 0 auto; padding: 0 22px; }

header.site { background: rgba(22,22,23,.92); -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px); position: sticky; top: 0; z-index: 100; }
header.site .container { display: flex; align-items: center; justify-content: space-between; height: 52px; padding: 0 22px; }
.brand { font-size: 19px; font-weight: 700; color: #f5f5f7; letter-spacing: -.01em; }
.brand span { color: #86868b; }
nav.main { display: flex; flex-wrap: wrap; }
nav.main a { color: #d2d2d7; text-decoration: none; font-size: 13px; margin-left: 24px; transition: color .15s; }
nav.main a:hover { color: #fff; }

.hero { background: #000; color: #f5f5f7; text-align: center; padding: 96px 0 78px; }
.hero h1 { font-size: 56px; font-weight: 700; letter-spacing: -.02em; line-height: 1.04; margin-bottom: 14px; }
.hero .tagline { font-size: 26px; color: #f5f5f7; font-weight: 600; }
.hero .sub { font-size: 17px; color: #86868b; margin-top: 12px; }

h1 { font-size: 40px; font-weight: 700; letter-spacing: -.02em; line-height: 1.1; margin: 44px 0 14px; }
h2 { font-size: 26px; font-weight: 700; letter-spacing: -.01em; margin: 48px 0 16px; }
p { margin: 0 0 16px; font-size: 17px; }
p.muted, .muted { color: var(--muted); font-size: 14px; }
ul { margin: 0 0 16px 22px; }
a { color: var(--accent); text-decoration: none; }

.verdict { background: var(--subtle); border-radius: 18px; padding: 24px 26px; margin: 20px 0; font-size: 17px; }
table { width: 100%; border-collapse: collapse; margin: 20px 0; background: #fff; border-radius: 18px; overflow: hidden; box-shadow: 0 1px 4px rgba(0,0,0,.05); }
th, td { padding: 14px 18px; text-align: left; font-size: 15px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--subtle); font-weight: 600; }
tr:last-child td { border-bottom: none; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.card { background: #fff; border-radius: 20px; padding: 26px; box-shadow: 0 2px 12px rgba(0,0,0,.04); transition: transform .2s ease, box-shadow .2s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(0,0,0,.09); }
.card h3 { font-size: 19px; font-weight: 600; margin-bottom: 8px; line-height: 1.3; }
.card a { color: var(--text); }
.card a:hover { color: var(--accent); }
.card p { color: var(--muted); font-size: 14px; margin: 0; }
.tag { color: var(--accent); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 8px; display: block; }

/* Category tiles */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; margin-top: 16px; }
.cat-tile { background: #fff; border-radius: 16px; padding: 20px 14px; text-align: center; box-shadow: 0 2px 12px rgba(0,0,0,.04); transition: transform .15s ease, box-shadow .15s ease; }
.cat-tile:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(0,0,0,.08); }
.cat-tile a { color: var(--text); text-decoration: none; font-size: 15px; font-weight: 600; }
.cat-tile a:hover { color: var(--accent); }

/* Product cards */
.product-card { background: #fff; border-radius: 20px; padding: 22px 24px; margin: 16px 0; box-shadow: 0 2px 12px rgba(0,0,0,.05); }
.product-name { font-size: 18px; font-weight: 600; }
.product-meta { margin: 5px 0; }
.stars { color: #f5a623; letter-spacing: 1px; }
.reviews { color: var(--muted); font-size: 13px; margin-left: 6px; }
.product-price { font-size: 22px; font-weight: 700; margin: 8px 0; }
.product-buy { margin-top: 8px; }
.btn { display: inline-block; background: var(--accent); color: #fff !important; text-decoration: none; padding: 9px 22px; border-radius: 980px; font-size: 14px; font-weight: 500; margin: 0 8px 8px 0; transition: background .15s; }
.btn:hover { background: #0077ed; }
.btn.alt { background: transparent; color: var(--accent) !important; box-shadow: inset 0 0 0 1px var(--accent); }
.btn.alt:hover { background: var(--accent); color: #fff !important; }

.faq { background: #fff; border-radius: 20px; padding: 8px 26px; box-shadow: 0 2px 12px rgba(0,0,0,.04); margin-top: 16px; }
.faq p { padding: 16px 0; border-bottom: 1px solid var(--border); margin: 0; font-size: 16px; }
.faq p:last-child { border-bottom: none; }
.faq strong { display: block; margin-bottom: 4px; }

/* Related / popular articles */
.related { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-top: 16px; }
.rel { background: #fff; border-radius: 16px; padding: 18px 20px; box-shadow: 0 2px 12px rgba(0,0,0,.04); color: var(--text); font-size: 15px; font-weight: 600; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease; }
.rel:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(0,0,0,.08); color: var(--accent); }

.warn { background: #fbf7e9; color: #6e5300; border-radius: 14px; padding: 14px 18px; font-size: 14px; }
.breadcrumbs { font-size: 13px; color: var(--muted); margin-top: 26px; }
.breadcrumbs a { color: var(--accent); }
section.block { margin-top: 64px; }
section.block h2 { margin-bottom: 18px; }

footer { background: var(--dark); color: #86868b; padding: 44px 0; margin-top: 88px; font-size: 13px; text-align: center; }
footer .container { padding-bottom: 0; }
footer a { color: #2997ff; }

/* Animations */
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.hero h1 { animation: fadeUp .8s cubic-bezier(.2,.7,.3,1) both; }
.hero .tagline { animation: fadeUp .8s cubic-bezier(.2,.7,.3,1) .12s both; }
.cat-tile { animation: fadeUp .5s ease both; }
.cat-tile:nth-child(2) { animation-delay: .06s; }
.cat-tile:nth-child(3) { animation-delay: .12s; }
.cat-tile:nth-child(4) { animation-delay: .18s; }
.cat-tile:nth-child(5) { animation-delay: .24s; }
.cat-tile:nth-child(6) { animation-delay: .3s; }
.cat-tile:nth-child(7) { animation-delay: .36s; }
.cat-tile:nth-child(8) { animation-delay: .42s; }
.cat-tile:nth-child(9) { animation-delay: .48s; }

@media (max-width: 640px) {
  .hero h1 { font-size: 40px; }
  .hero .tagline { font-size: 22px; }
  h1 { font-size: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

.logo-mark { width: 24px; height: 24px; vertical-align: -5px; margin-right: 8px; border-radius: 6px; }
@media (max-width: 640px) {
  .hero { padding: 60px 0 50px; }
  .container { padding: 0 16px; }
  th, td { padding: 10px 10px; font-size: 13px; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
}@media (max-width: 640px) {
  header.site .container { height: auto; min-height: 52px; padding: 10px 16px; gap: 8px; }
  nav.main a { margin-left: 0; margin-right: 14px; }
  .brand { font-size: 17px; }
}

@media (max-width: 640px) {
  .btn { padding: 8px 12px; font-size: 13px; margin: 0 6px 6px 0; }
}