:root {
  --bg: #f6f8fb;
  --bg-soft: #edf3f6;
  --surface: #ffffff;
  --surface-strong: #f9fbff;
  --ink: #111827;
  --text: #263241;
  --muted: #627084;
  --line: #d8e0ea;
  --line-strong: #bdc9d8;
  --blue: #2457d6;
  --blue-dark: #173d9b;
  --green: #167a56;
  --green-soft: #e5f7ed;
  --coral: #e85d3f;
  --coral-soft: #fff0eb;
  --yellow-soft: #fff7dc;
  --shadow: 0 24px 70px rgba(31, 48, 76, 0.16);
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(17, 24, 39, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 24, 39, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 70%);
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
.container { width: min(100% - 40px, var(--max)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 14px 32px;
  background: rgba(246, 248, 251, 0.88);
  border-bottom: 1px solid rgba(216, 224, 234, 0.86);
  backdrop-filter: blur(18px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  white-space: nowrap;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 8px;
  background: var(--ink);
  color: #ffffff;
  font-size: 13px;
  font-weight: 900;
  line-height: 1;
}
.nav-links { display: flex; align-items: center; gap: 24px; color: var(--muted); font-size: 14px; font-weight: 650; }
.nav-links a:hover { color: var(--ink); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease, color 160ms ease;
}
.button:hover { transform: translateY(-1px); }
.button-primary, .button-small { background: var(--blue); color: #ffffff; box-shadow: 0 12px 28px rgba(36, 87, 214, 0.22); }
.button-primary:hover, .button-small:hover { background: var(--blue-dark); }
.button-secondary { background: rgba(255, 255, 255, 0.74); border-color: var(--line-strong); color: var(--ink); }
.button-secondary:hover { background: #ffffff; border-color: var(--ink); }
.button-small { min-height: 40px; padding: 0 14px; font-size: 14px; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 58px 0 42px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(246, 248, 251, 0.94)),
    linear-gradient(120deg, rgba(36, 87, 214, 0.14), rgba(22, 122, 86, 0.1) 48%, rgba(232, 93, 63, 0.12));
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 180px;
  background: linear-gradient(to top, var(--bg), rgba(246, 248, 251, 0));
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; display: grid; justify-items: center; text-align: center; }
.eyebrow { margin: 0 0 14px; color: var(--blue); font-size: 13px; font-weight: 850; line-height: 1.3; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 {
  width: min(1040px, 100%);
  margin: 0;
  color: var(--ink);
  font-size: 58px;
  line-height: 0.98;
  font-weight: 900;
  letter-spacing: 0;
}
.hero-copy { width: min(720px, 100%); margin: 24px 0 0; color: var(--text); font-size: 20px; line-height: 1.5; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 30px; }
.hero-bullets {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  width: min(940px, 100%);
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.hero-bullets li {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid rgba(216, 224, 234, 0.9);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  font-size: 14px;
  font-weight: 750;
  text-align: left;
}
.hero-bullets li::before { content: ""; width: 8px; height: 8px; flex: 0 0 8px; margin-right: 10px; border-radius: 50%; background: var(--green); }
.product-preview { width: min(990px, 100%); max-height: 170px; margin-top: 28px; overflow: hidden; }
.browser-frame { overflow: hidden; border: 1px solid var(--line-strong); border-radius: 8px; background: #ffffff; box-shadow: var(--shadow); text-align: left; }
.browser-top { display: flex; align-items: center; gap: 8px; min-height: 42px; padding: 0 14px; border-bottom: 1px solid var(--line); background: var(--surface-strong); }
.browser-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--line-strong); }
.browser-url { display: flex; align-items: center; height: 26px; margin-left: 10px; padding: 0 12px; border: 1px solid var(--line); border-radius: 999px; background: #ffffff; color: var(--muted); font-size: 13px; }
.preview-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 18px; padding: 18px; background: linear-gradient(90deg, rgba(36, 87, 214, 0.06), transparent 34%), linear-gradient(180deg, #ffffff, #f7fbff); }
.preview-feed, .extension-panel { min-width: 0; }
.preview-feed { display: grid; gap: 12px; }
.preview-post { display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 12px; min-height: 96px; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.preview-post p { margin: 4px 0 0; color: var(--text); }
.avatar { width: 42px; height: 42px; border-radius: 8px; background: var(--blue); }
.avatar-muted { background: var(--coral); }
.avatar-green { background: var(--green); }
.post-meta { color: var(--ink); font-size: 14px; font-weight: 850; }
.hidden-post { border-color: rgba(232, 93, 63, 0.34); background: linear-gradient(180deg, #ffffff, var(--coral-soft)); }
.collapse-strip { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 10px; padding: 8px 10px; border: 1px solid rgba(232, 93, 63, 0.3); border-radius: 8px; background: #ffffff; color: #99402d; font-size: 13px; font-weight: 800; }
.collapse-strip button { min-height: 30px; padding: 0 10px; border: 1px solid rgba(232, 93, 63, 0.42); border-radius: 8px; background: #ffffff; color: #99402d; font-size: 13px; font-weight: 850; }
.extension-panel { display: grid; align-content: start; gap: 14px; padding: 16px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.panel-head { display: flex; align-items: center; gap: 10px; }
.panel-head strong, .panel-head span { display: block; }
.panel-head strong { color: var(--ink); }
.panel-head span:not(.brand-mark) { color: var(--muted); font-size: 13px; }
.panel-mark { width: 32px; height: 32px; flex-basis: 32px; font-size: 12px; }
.rule-card, .strictness, .review-line { padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-strong); }
.rule-card span, .strictness span:first-child, .review-line span { display: block; color: var(--muted); font-size: 12px; font-weight: 800; }
.rule-card p { margin: 7px 0 0; color: var(--ink); font-weight: 800; line-height: 1.35; }
.segments { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4px; margin-top: 9px; }
.segments span { display: grid; place-items: center; min-height: 32px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; color: var(--muted); font-size: 12px; font-weight: 800; }
.segments .active { border-color: rgba(22, 122, 86, 0.32); background: var(--green-soft); color: var(--green); }
.review-line { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.review-line strong { color: var(--green); }

.intro-strip { padding: 32px 0; border-bottom: 1px solid var(--line); background: #ffffff; }
.intro-grid { display: grid; grid-template-columns: minmax(0, 1fr) 430px; align-items: center; gap: 28px; }
.intro-grid p { margin: 0; color: var(--ink); font-size: 20px; font-weight: 780; line-height: 1.42; }
.mini-stats { display: grid; gap: 8px; }
.mini-stats span { display: flex; align-items: center; min-height: 38px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-strong); color: var(--muted); font-weight: 750; }
.mini-stats span::before { content: ""; width: 8px; height: 8px; flex: 0 0 8px; margin-right: 10px; border-radius: 50%; background: var(--blue); }

.section { padding: 88px 0; }
.section-muted { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { width: min(760px, 100%); margin: 0 auto 42px; text-align: center; }
.section-head h2, .two-column h2, .final-cta h2 { margin: 0; color: var(--ink); font-size: 44px; line-height: 1.08; letter-spacing: 0; }
.section-head p:not(.eyebrow), .section-copy { color: var(--muted); font-size: 18px; }
.section-head p:not(.eyebrow) { margin: 16px 0 0; }
.section-copy { margin: 20px 0 0; }
.two-column { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1fr); gap: 46px; align-items: center; }
.comparison-example { display: grid; gap: 14px; }
.example-row { padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.example-row span { display: block; color: var(--muted); font-size: 13px; font-weight: 850; }
.example-row strong { display: block; margin-top: 8px; color: var(--ink); font-size: 19px; line-height: 1.35; }
.example-row p { margin: 10px 0 0; color: var(--muted); }
.example-row.is-better { border-color: rgba(22, 122, 86, 0.34); background: linear-gradient(180deg, #ffffff, var(--green-soft)); }
.example-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.filter-card { display: grid; align-content: start; min-height: 370px; padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.filter-card > span { justify-self: start; min-height: 28px; padding: 4px 10px; border-radius: 999px; background: var(--yellow-soft); color: #7a5b00; font-size: 13px; font-weight: 850; }
.filter-card h3 { margin: 18px 0 5px; color: var(--ink); font-size: 14px; line-height: 1.2; }
.filter-card p { margin: 0; color: var(--muted); }
.filter-card blockquote { margin: 0; padding: 12px; border-left: 4px solid var(--blue); border-radius: 8px; background: var(--surface-strong); color: var(--ink); font-weight: 760; }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.step { min-height: 244px; padding: 22px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.step span { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 8px; background: var(--blue); color: #ffffff; font-weight: 900; }
.step h3, .feature-card h3 { margin: 18px 0 8px; color: var(--ink); font-size: 20px; line-height: 1.18; }
.step p, .feature-card p { margin: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.feature-card { min-height: 232px; padding: 22px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.feature-icon { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid rgba(36, 87, 214, 0.24); border-radius: 8px; background: rgba(36, 87, 214, 0.08); color: var(--blue); font-size: 12px; font-weight: 900; }
.comparison-table { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.comparison-col { padding: 26px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.comparison-col.is-highlighted { border-color: rgba(36, 87, 214, 0.32); background: linear-gradient(180deg, #ffffff, #eff5ff); }
.comparison-col h3 { margin: 0 0 18px; color: var(--ink); font-size: 24px; }
.comparison-col ul { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.comparison-col li { display: flex; align-items: flex-start; gap: 10px; color: var(--text); font-weight: 720; }
.comparison-col li::before { content: ""; width: 9px; height: 9px; flex: 0 0 9px; margin-top: 8px; border-radius: 50%; background: var(--coral); }
.comparison-col.is-highlighted li::before { background: var(--green); }
.use-case-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.use-case-grid span { display: inline-flex; align-items: center; min-height: 40px; padding: 8px 13px; border: 1px solid var(--line); border-radius: 999px; background: #ffffff; color: var(--text); font-weight: 760; }
.faq-list { display: grid; gap: 12px; width: min(820px, 100%); margin: 0 auto; }
.faq-list details { border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; min-height: 62px; padding: 18px 20px; color: var(--ink); cursor: pointer; font-size: 18px; font-weight: 820; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; display: grid; place-items: center; width: 28px; height: 28px; flex: 0 0 28px; margin-left: 16px; border: 1px solid var(--line); border-radius: 8px; color: var(--blue); }
.faq-list details[open] summary::after { content: "-"; }
.faq-list p { margin: 0; padding: 0 20px 20px; color: var(--muted); font-size: 17px; }
.final-cta { padding: 88px 0; background: linear-gradient(135deg, rgba(17, 24, 39, 0.96), rgba(22, 122, 86, 0.9)), var(--ink); color: #ffffff; }
.final-cta-inner { width: min(800px, calc(100% - 40px)); text-align: center; }
.final-cta .eyebrow { color: #9bd7ff; }
.final-cta h2 { color: #ffffff; }
.final-cta p:not(.eyebrow) { margin: 18px auto 28px; color: rgba(255, 255, 255, 0.82); font-size: 19px; }
.site-footer { padding: 32px 0; background: #ffffff; border-top: 1px solid var(--line); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-inner p { margin: 0; color: var(--muted); text-align: right; }

@media (max-width: 920px) {
  .site-header { padding: 12px 20px; }
  .nav-links { display: none; }
  h1 { font-size: 46px; }
  .hero-bullets { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .preview-layout, .intro-grid, .two-column, .comparison-table { grid-template-columns: 1fr; }
  .extension-panel { order: -1; }
  .steps, .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .example-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 28px, var(--max)); }
  .site-header { gap: 12px; }
  .brand span:last-child { display: none; }
  .button-small { min-height: 38px; padding: 0 12px; }
  .hero { padding: 42px 0 34px; }
  h1 { font-size: 36px; line-height: 1.03; }
  .hero-copy { font-size: 18px; }
  .hero-actions { width: 100%; }
  .hero-actions .button { width: 100%; }
  .hero-bullets { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-bullets li { align-items: flex-start; min-height: 82px; font-size: 13px; }
  .product-preview { display: none; }
  .steps, .feature-grid { grid-template-columns: 1fr; }
  .section { padding: 62px 0; }
  .section-head h2, .two-column h2, .final-cta h2 { font-size: 32px; }
  .section-head p:not(.eyebrow), .section-copy { font-size: 17px; }
  .intro-grid p { font-size: 18px; }
  .filter-card, .step, .feature-card { min-height: auto; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .footer-inner p { text-align: left; }
}