:root {
  color-scheme: dark;
  --navy: #07162f;
  --navy-2: #0b2347;
  --blue: #1677ff;
  --cyan: #32d4ff;
  --white: #f7fbff;
  --muted: #b6c6dc;
  --line: rgba(255, 255, 255, 0.14);
  --card: rgba(11, 35, 71, 0.82);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--white);
  background:
    radial-gradient(circle at 85% 5%, rgba(22, 119, 255, 0.24), transparent 32rem),
    linear-gradient(160deg, #061126 0%, var(--navy) 58%, #081b38 100%);
  line-height: 1.65;
}

a { color: inherit; }

img { max-width: 100%; }

.seo-shell { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }

.seo-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(6, 17, 38, 0.9);
  backdrop-filter: blur(16px);
}

.seo-header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.seo-logo { display: inline-flex; align-items: center; }
.seo-logo img { width: 210px; height: auto; }

.seo-nav { display: flex; align-items: center; gap: 20px; font-size: 0.94rem; }
.seo-nav a { text-decoration: none; color: var(--muted); }
.seo-nav a:hover, .seo-nav a:focus-visible { color: white; }

.seo-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  color: white !important;
  background: linear-gradient(135deg, var(--blue), #0a55c9);
  box-shadow: 0 12px 34px rgba(22, 119, 255, 0.28);
}

.seo-hero { padding: 86px 0 64px; }
.seo-hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.seo-kicker { color: var(--cyan); font-size: 0.82rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }
.seo-hero h1 { max-width: 800px; margin: 16px 0 22px; font-size: clamp(2.35rem, 5vw, 4.7rem); line-height: 1.03; letter-spacing: -0.045em; }
.seo-hero p { max-width: 720px; margin: 0; color: var(--muted); font-size: 1.12rem; }
.seo-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.seo-secondary { display: inline-flex; padding: 11px 17px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; }

.seo-visual {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--navy-2);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.35);
}
.seo-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.seo-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(5, 15, 33, 0.82)); }
.seo-visual-label { position: absolute; z-index: 1; left: 24px; right: 24px; bottom: 22px; padding: 16px; border: 1px solid var(--line); border-radius: 16px; background: rgba(5, 15, 33, 0.78); backdrop-filter: blur(10px); }
.seo-visual-label strong { display: block; font-size: 1.08rem; }
.seo-visual-label span { color: var(--muted); font-size: 0.92rem; }

.seo-section { padding: 66px 0; }
.seo-section.alt { border-block: 1px solid var(--line); background: rgba(255, 255, 255, 0.025); }
.seo-section h2 { margin: 0 0 18px; font-size: clamp(1.8rem, 3.5vw, 3rem); line-height: 1.12; letter-spacing: -0.03em; }
.seo-intro { max-width: 780px; color: var(--muted); font-size: 1.05rem; }

.seo-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 34px; }
.seo-card { padding: 25px; border: 1px solid var(--line); border-radius: 20px; background: var(--card); }
.seo-card h3 { margin: 0 0 10px; font-size: 1.15rem; }
.seo-card p { margin: 0; color: var(--muted); }

.seo-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 24px; padding: 0; margin: 28px 0 0; list-style: none; }
.seo-list li { position: relative; padding: 15px 16px 15px 46px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255, 255, 255, 0.035); }
.seo-list li::before { content: "✓"; position: absolute; left: 17px; top: 14px; color: var(--cyan); font-weight: 900; }

.seo-compare { width: 100%; margin-top: 30px; border-collapse: collapse; overflow: hidden; border-radius: 18px; }
.seo-compare th, .seo-compare td { padding: 16px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.seo-compare th { background: rgba(22, 119, 255, 0.17); }
.seo-compare td { color: var(--muted); }

.seo-faq { display: grid; gap: 12px; margin-top: 28px; }
.seo-faq details { border: 1px solid var(--line); border-radius: 15px; padding: 18px 20px; background: rgba(255, 255, 255, 0.03); }
.seo-faq summary { cursor: pointer; font-weight: 750; }
.seo-faq p { margin: 12px 0 0; color: var(--muted); }

.seo-final { text-align: center; padding: 72px 0; }
.seo-final p { color: var(--muted); max-width: 700px; margin: 12px auto 26px; }

.seo-footer { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); }
.seo-footer-inner { display: flex; justify-content: space-between; gap: 24px; align-items: center; }
.seo-footer-links { display: flex; flex-wrap: wrap; gap: 16px; }

@media (max-width: 860px) {
  .seo-nav a:not(.seo-cta) { display: none; }
  .seo-hero { padding-top: 58px; }
  .seo-hero-grid { grid-template-columns: 1fr; }
  .seo-visual { min-height: 340px; }
  .seo-cards { grid-template-columns: 1fr; }
  .seo-list { grid-template-columns: 1fr; }
  .seo-compare { display: block; overflow-x: auto; }
  .seo-footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 520px) {
  .seo-shell { width: min(100% - 24px, 1120px); }
  .seo-logo img { width: 170px; }
  .seo-header-inner { min-height: 68px; }
  .seo-cta { padding: 10px 13px; font-size: 0.86rem; }
  .seo-hero h1 { font-size: 2.5rem; }
}