:root {
  --bg: #ffffff;
  --bg-soft: #f4f6fb;
  --ink: #1b2333;
  --muted: #5e6b7e;
  --line: #e4e9f2;
  --brand: #3b6ef5;
  --brand-2: #6a4df5;
  --good: #1f9d6b;
  --warn: #d9822b;
  --hot: #fff3d6;
  --radius: 14px;
  --shadow-sm: 0 1px 3px rgba(20, 30, 60, 0.07), 0 6px 18px rgba(20, 30, 60, 0.06);
  --shadow-lg: 0 12px 40px rgba(20, 30, 60, 0.16);
  --wrap: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.6 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.muted { color: var(--muted); }
.center { text-align: center; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 600; font-size: 16px;
  padding: 13px 22px; border-radius: 11px;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  cursor: pointer; transition: transform 0.08s, box-shadow 0.15s, background 0.15s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; border-color: transparent;
}
.btn-primary:hover { box-shadow: 0 10px 26px rgba(59, 110, 245, 0.35); }
.btn-ghost { background: transparent; }
.btn[aria-disabled="true"] { opacity: 0.6; cursor: not-allowed; pointer-events: none; }
.btn-sub { font-size: 12.5px; color: var(--muted); display: block; margin-top: 8px; }

/* ---- nav ---- */
header.site {
  position: sticky; top: 0; z-index: 30;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; color: var(--ink); }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav .spacer { flex: 1; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  color: var(--ink); font-weight: 500; font-size: 15px;
  padding: 8px 12px; border-radius: 8px;
}
.nav-links a:hover { background: var(--bg-soft); text-decoration: none; }
.nav-links a.active { color: var(--brand); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; cursor: pointer; font-size: 18px; }

/* ---- hero ---- */
.hero { position: relative; overflow: hidden; padding: 70px 0 40px; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(1100px 500px at 80% -10%, rgba(106, 77, 245, 0.14), transparent 60%),
    radial-gradient(900px 480px at 0% 0%, rgba(59, 110, 245, 0.14), transparent 55%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.02em; text-transform: uppercase;
  color: var(--brand); background: #eaf0ff; border: 1px solid #d4e0ff;
  padding: 5px 12px; border-radius: 20px;
}
h1.hero-title { font-size: clamp(34px, 5vw, 52px); line-height: 1.08; margin: 18px 0 14px; letter-spacing: -0.02em; }
.hero-title .grad {
  background: linear-gradient(120deg, var(--brand), var(--brand-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: 19px; color: var(--muted); max-width: 540px; margin: 0 0 26px; }
.hero-cta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.hero-points { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 22px; color: var(--muted); font-size: 14.5px; }
.hero-points span { display: inline-flex; align-items: center; gap: 7px; }

/* ---- app window mockup ---- */
.mock {
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  box-shadow: var(--shadow-lg); overflow: hidden; transform: rotate(0.4deg);
}
.mock-bar { display: flex; align-items: center; gap: 8px; padding: 11px 14px; background: #f6f8fc; border-bottom: 1px solid var(--line); }
.mock-bar .dot { width: 11px; height: 11px; border-radius: 50%; background: #d7deea; }
.mock-bar .dot.r { background: #ff6058; } .mock-bar .dot.y { background: #ffbd2e; } .mock-bar .dot.g { background: #28c940; }
.mock-bar .ttl { margin-left: 2px; font-size: 12.5px; color: var(--muted); font-weight: 600; }
.mock-bar .mock-ico { width: 16px; height: 16px; border-radius: 4px; }
.mock-bar .win-ctrls { margin-left: auto; color: #9aa7bd; font-size: 12px; letter-spacing: 8px; }
.mock-tools { display: flex; align-items: center; gap: 6px; padding: 9px 12px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.chip { font-size: 11.5px; border: 1px solid var(--line); border-radius: 7px; padding: 4px 8px; color: var(--ink); background: #fff; white-space: nowrap; }
.chip.b { background: var(--brand); color: #fff; border-color: var(--brand); }
.mock-grid { width: 100%; border-collapse: collapse; font-size: 12.5px; font-variant-numeric: tabular-nums; }
.mock-grid th, .mock-grid td { text-align: left; padding: 7px 11px; border-bottom: 1px solid #eef1f6; white-space: nowrap; }
.mock-grid thead th { background: #f6f8fc; color: var(--muted); font-weight: 600; font-size: 11.5px; }
.mock-grid td.num { text-align: right; }
/* real app screenshot in the hero */
.hero-shot { transform: rotate(0.4deg); }
.hero-shot img { display: block; width: 100%; height: auto; border-radius: 14px; border: 1px solid var(--line); box-shadow: var(--shadow-lg); }
.mock-grid tr.diff td { background: #fff8e6; }
.mock-grid tr.add td { background: #eaf0ff; }
.mock-grid tr.del td { background: #fdecec; }
.tag { font-size: 9px; font-weight: 800; border-radius: 4px; padding: 1px 5px; color: #fff; }
.tag.a { background: var(--brand); } .tag.b { background: var(--warn); }

/* ---- sections ---- */
section { padding: 64px 0; }
section.alt { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { max-width: 720px; margin: 0 auto 40px; text-align: center; }
.sec-head h2 { font-size: clamp(26px, 3.4vw, 36px); margin: 0 0 12px; letter-spacing: -0.01em; }
.sec-head p { font-size: 18px; color: var(--muted); margin: 0; }

/* ---- feature cards ---- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow-sm);
}
.card .ico {
  width: 46px; height: 46px; border-radius: 11px; display: grid; place-items: center;
  font-size: 22px; margin-bottom: 14px;
  background: linear-gradient(135deg, #eaf0ff, #efeaff); border: 1px solid #dfe6ff;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---- steps ---- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
.step { position: relative; padding-left: 12px; }
.step .n {
  width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-2));
  margin-bottom: 12px;
}
.step h3 { margin: 0 0 6px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); }

/* ---- comparison rows / split features ---- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.split.rev > .split-media { order: -1; }
.feature-list { list-style: none; padding: 0; margin: 18px 0 0; }
.feature-list li { padding: 8px 0 8px 30px; position: relative; color: var(--ink); }
.feature-list li::before { content: "✓"; position: absolute; left: 0; color: var(--good); font-weight: 800; }

/* ---- audience / pills ---- */
.pills { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.pill { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 9px 16px; font-size: 14.5px; box-shadow: var(--shadow-sm); }

/* ---- manifesto ---- */
.manifesto { max-width: 860px; margin: 0 auto; text-align: center; }
.manifesto h2 { font-size: clamp(28px, 4.2vw, 42px); line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 18px; }
.manifesto h2 .grad { background: linear-gradient(120deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.manifesto p { font-size: 18.5px; color: var(--muted); margin: 0 auto 16px; max-width: 720px; }
.manifesto .kicker { font-size: 20px; color: var(--ink); font-weight: 600; }

/* ---- comparison table ---- */
.vs { max-width: 900px; margin: 0 auto; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-lg); background: #fff; }
.vs table { width: 100%; border-collapse: collapse; }
.vs th, .vs td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line); font-size: 15px; vertical-align: middle; }
.vs thead th { background: #f6f8fc; font-size: 13px; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }
.vs thead th.dd { color: var(--brand); }
.vs thead th.dd .lg { display: inline-flex; align-items: center; gap: 7px; font-size: 15px; text-transform: none; letter-spacing: 0; font-weight: 800; color: var(--ink); }
.vs thead th.dd .lg img { width: 22px; height: 22px; border-radius: 6px; }
.vs td.feat { font-weight: 600; }
.vs td.col { text-align: center; width: 200px; }
.vs td.dd { background: #f3f7ff; }
.vs .yes { color: var(--good); font-weight: 800; }
.vs .no { color: #c8413a; font-weight: 800; }
.vs .small { font-size: 13px; color: var(--muted); display: block; }
.vs tr:last-child td { border-bottom: none; }
@media (max-width: 560px) {
  .vs th, .vs td { padding: 11px 12px; font-size: 13.5px; }
  .vs td.col { width: 110px; }
}

/* ---- tech strip ---- */
.tech { display: flex; flex-wrap: wrap; gap: 28px; justify-content: center; align-items: center; color: var(--muted); }
.tech b { color: var(--ink); }

/* ---- CTA band ---- */
.cta-band { text-align: center; background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; border-radius: 20px; padding: 50px 24px; box-shadow: var(--shadow-lg); }
.cta-band h2 { font-size: clamp(26px, 3.4vw, 34px); margin: 0 0 10px; }
.cta-band p { color: rgba(255, 255, 255, 0.9); font-size: 18px; margin: 0 0 22px; }
.cta-band .btn-primary { background: #fff; color: var(--brand); }
.cta-band .btn-primary:hover { box-shadow: 0 10px 26px rgba(0, 0, 0, 0.2); }

/* ---- FAQ ---- */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { border: 1px solid var(--line); border-radius: 12px; padding: 4px 18px; margin-bottom: 12px; background: #fff; }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--brand); font-weight: 700; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 16px; color: var(--muted); }

/* ---- page hero (sub pages) ---- */
.page-hero { padding: 56px 0 12px; text-align: center; }
.page-hero h1 { font-size: clamp(30px, 4.4vw, 44px); margin: 10px 0 12px; letter-spacing: -0.02em; }
.page-hero p { font-size: 18px; color: var(--muted); max-width: 640px; margin: 0 auto; }

/* ---- download box ---- */
.dl-box { max-width: 560px; margin: 0 auto; text-align: center; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 36px; box-shadow: var(--shadow-lg); }
.dl-box .big-ico { width: 84px; height: 84px; border-radius: 20px; margin: 0 auto 16px; display: block; }
.dl-meta { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; color: var(--muted); font-size: 14px; margin-top: 16px; }

/* ---- footer ---- */
footer.site { border-top: 1px solid var(--line); background: var(--bg-soft); padding: 40px 0; margin-top: 20px; }
.foot { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.foot .spacer { flex: 1; }
.foot .brand { font-size: 16px; }
.foot a { color: var(--muted); font-size: 14.5px; }

/* ---- responsive ---- */
@media (max-width: 920px) {
  .hero-grid, .split { grid-template-columns: 1fr; gap: 32px; }
  .split.rev > .split-media { order: 0; }
  .cards, .steps { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: #fff; border-bottom: 1px solid var(--line); padding: 8px; gap: 2px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
}
@media (max-width: 560px) {
  .cards, .steps { grid-template-columns: 1fr; }
  .hero { padding: 44px 0 20px; }
}