:root {
  color-scheme: dark;
  --bg: #090b0e;
  --surface: #11151a;
  --surface-2: #171c22;
  --line: #29313a;
  --text: #f4f7fa;
  --muted: #a6b0bb;
  --blue: #5aa2ff;
  --green: #63d77c;
  --yellow: #f4c84f;
  --red: #f27777;
  --max: 1180px;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
.wrap { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 16px; top: 16px; z-index: 99; padding: 10px 14px; background: var(--text); color: var(--bg); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(9, 11, 14, .82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.nav { min-height: 70px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 760; letter-spacing: -.02em; }
.brand img { width: 34px; height: 34px; border-radius: 50%; background: #fff; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 24px; color: var(--muted); font-size: .93rem; }
.nav-links a { text-decoration: none; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }
.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: var(--text);
  color: #0a0c0f;
  font-weight: 720;
  text-decoration: none;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-2px); background: #fff; }
.button.secondary { background: transparent; color: var(--text); border-color: var(--line); }
.button.secondary:hover { border-color: #596674; background: var(--surface); }
.button.small { min-height: 44px; padding-inline: 15px; border-radius: 10px; font-size: .9rem; }

.hero { position: relative; overflow: hidden; padding: 70px 0 56px; }
.hero::before {
  content: "";
  position: absolute;
  inset: -30% 0 auto 20%;
  height: 600px;
  background: radial-gradient(circle, rgba(67,135,255,.16), transparent 62%);
  pointer-events: none;
}
.eyebrow { margin: 0 0 16px; color: var(--blue); font-size: .78rem; font-weight: 760; letter-spacing: .15em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; letter-spacing: -.045em; }
h1 { max-width: 1050px; margin-bottom: 22px; font-size: clamp(3rem, 7vw, 5.9rem); }
h2 { margin-bottom: 18px; font-size: clamp(2rem, 4.5vw, 4rem); }
h3 { margin-bottom: 10px; font-size: 1.35rem; letter-spacing: -.025em; }
.lede { max-width: 690px; margin: 0; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.3rem); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 22px 0 0; color: var(--muted); font-size: .92rem; }
.hero-facts strong { color: var(--text); }
.hero-facts span { position: relative; }
.hero-facts span::before { content: "·"; position: absolute; left: -11px; color: #56616e; }
.hero-shot { position: relative; margin-top: 46px; border: 1px solid #313943; border-radius: 26px; overflow: hidden; box-shadow: var(--shadow); background: #15191e; }
.hero-shot::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 1px rgba(255,255,255,.07); border-radius: inherit; pointer-events: none; }

.trust { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #0d1014; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-item { padding: 22px 18px; border-right: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.trust-item:last-child { border-right: 0; }
.trust-item strong { display: block; color: var(--text); font-size: 1rem; }

section { padding: 82px 0; }
.section-intro { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: end; margin-bottom: 44px; }
.section-intro p { margin: 0; color: var(--muted); font-size: 1.05rem; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { min-height: 250px; padding: 28px; background: linear-gradient(145deg, var(--surface-2), var(--surface)); border: 1px solid var(--line); border-radius: var(--radius); }
.card p { margin-bottom: 0; color: var(--muted); }
.number { display: inline-grid; place-items: center; width: 34px; height: 34px; margin-bottom: 34px; border-radius: 50%; background: rgba(90,162,255,.13); color: var(--blue); font-size: .78rem; font-weight: 800; }
.detail-section { padding-top: 38px; }
.detail-gallery { display: grid; grid-template-columns: 1.05fr .72fr .72fr; grid-template-rows: auto 1fr; gap: 16px; }
.detail-gallery figure { margin: 0; min-width: 0; overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.detail-gallery img { width: 100%; height: 100%; object-fit: contain; background: #2d2d2d; }
.detail-gallery figcaption { padding: 14px 16px; color: var(--muted); font-size: .84rem; border-top: 1px solid var(--line); }
.detail-wide { grid-column: 1 / -1; }
.detail-wide img { height: auto; min-height: 90px; object-fit: cover; }
.detail-tall { grid-row: span 2; }
.detail-tall img { min-height: 420px; }
.detail-small img { min-height: 185px; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.compare figure { margin: 0; overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.compare figcaption { padding: 16px 18px; color: var(--muted); font-size: .9rem; }
.compare figcaption strong { color: var(--text); }

.product-section { background: #0d1014; border-block: 1px solid var(--line); }
.pricing { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: stretch; }
.price-card { display: flex; flex-direction: column; padding: 34px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.price-card.featured { border-color: #548bcc; background: linear-gradient(145deg, #172231, #11151a 62%); }
.tag { align-self: flex-start; padding: 5px 9px; border-radius: 999px; background: rgba(90,162,255,.15); color: #91c0ff; font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.price { margin: 20px 0 6px; font-size: 2.7rem; font-weight: 780; letter-spacing: -.05em; }
.price small { color: var(--muted); font-size: .95rem; font-weight: 500; letter-spacing: 0; }
.price-card > p { color: var(--muted); }
.checklist { padding: 0; margin: 22px 0 30px; list-style: none; }
.checklist li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.checklist li::before { content: "✓"; margin-right: 9px; color: var(--green); }
.price-card .button { margin-top: auto; }
.fineprint { margin: 18px 0 0; color: #87929e; font-size: .82rem; }

.resources { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.resource { padding: 26px; text-decoration: none; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.resource:hover { border-color: #56616e; }
.resource span { color: var(--blue); font-size: .88rem; }
.resource p { color: var(--muted); margin-bottom: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; color: var(--muted); font-size: .84rem; }
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--text); }
.product-hero { position: relative; overflow: hidden; padding-top: 58px; }
.product-intro { align-items: start; }
.product-intro h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); }
.product-shot { margin-top: 22px; }
.product-details { margin-top: 16px; }
.compact-cards .card { min-height: 0; }
.text-link { display: inline-block; margin-top: 20px; color: var(--blue); text-decoration: none; font-weight: 700; }
.source-note { max-width: 900px; margin: 34px auto 0; }
.source-note a, .article a { color: #83b8ff; }
.related-box { margin-top: 68px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.related-box p:not(.eyebrow) { color: var(--muted); }
.faq { max-width: 820px; margin-inline: auto; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { padding: 22px 0; cursor: pointer; font-weight: 700; }
.faq details p { margin-top: 0; padding-right: 30px; color: var(--muted); }
.cta { padding: 54px; background: linear-gradient(130deg, #1a2940, #11151a 60%); border: 1px solid #314761; border-radius: 28px; }
.cta p { max-width: 650px; color: var(--muted); }

.article-hero { padding: 80px 0 40px; }
.article-hero h1 { max-width: 960px; font-size: clamp(2.7rem, 7vw, 5.8rem); }
.article-meta { color: var(--muted); font-size: .92rem; }
.article { width: min(calc(100% - 40px), 850px); margin-inline: auto; padding: 30px 0 100px; }
.article > p, .article li { color: #c2c9d0; }
.article h2 { margin-top: 64px; font-size: 2.2rem; }
.article h3 { margin-top: 46px; font-size: 1.65rem; }
.article figure { margin: 30px 0 46px; }
.article figure img { border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.article figcaption { margin-top: 10px; color: var(--muted); font-size: .84rem; }
.article code { padding: 2px 6px; border-radius: 6px; background: var(--surface-2); color: #d9e7f8; overflow-wrap: anywhere; }
.article .notice { padding: 20px 22px; border-left: 3px solid var(--blue); background: var(--surface); border-radius: 0 12px 12px 0; }
.step { margin: 44px 0; }
.step-label { color: var(--blue); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.empty-state { min-height: 62vh; display: grid; align-items: center; }

.site-footer { padding: 40px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 50px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; align-content: start; justify-content: flex-end; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.disclaimer { max-width: 740px; margin-top: 22px; font-size: .78rem; color: #7f8a95; }

:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; }
@media (max-width: 820px) {
  .wrap { width: min(calc(100% - 28px), var(--max)); }
  .nav { min-height: 64px; padding: 10px 0; gap: 12px; }
  .nav-links { display: none; }
  .nav > .button { margin-left: auto; }
  .hero { padding-top: 54px; }
  .section-intro, .footer-grid { grid-template-columns: 1fr; gap: 20px; }
  .cards, .resources { grid-template-columns: 1fr; }
  .pricing, .compare { grid-template-columns: 1fr; }
  .detail-gallery { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .detail-wide { grid-column: 1 / -1; }
  .detail-tall { grid-row: auto; }
  .detail-tall img { min-height: 320px; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-item:nth-child(2) { border-right: 0; }
  .trust-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  section { padding: 70px 0; }
  .footer-links { justify-content: flex-start; }
  .cta { padding: 32px 24px; }
}
@media (max-width: 500px) {
  h1 { font-size: 3rem; }
  .nav .button.small { padding-inline: 12px; font-size: .82rem; }
  .hero-facts { display: grid; gap: 3px; }
  .hero-facts span::before { content: none; }
  .detail-gallery { grid-template-columns: 1fr; }
  .detail-wide { grid-column: auto; }
  .detail-tall img { min-height: 360px; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .trust-item:last-child { border-bottom: 0; }
  .price-card { padding: 26px 22px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}