:root {
  color-scheme: dark;
  --bg: #0b1020;
  --surface: rgba(18, 26, 43, 0.88);
  --border: #24314d;
  --fg: #f3f7ff;
  --muted: #9fb0cc;
  --primary: #4da3ff;
  --teal: #5df0da;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  color: var(--fg);
  line-height: 1.5;
  background:
    radial-gradient(circle at top left, rgba(77, 163, 255, 0.14), transparent 28%),
    linear-gradient(180deg, #09101d 0%, #0b1020 100%);
  min-height: 100dvh;
}
.wrap { width: min(44rem, calc(100% - 2rem)); margin: 0 auto; padding: 2rem 0 4rem; }
.brand { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.5rem; text-decoration: none; color: inherit; }
.brand img:first-child { width: 40px; height: 40px; }
.brand img:last-child { width: min(14rem, 58vw); height: auto; }
.eyebrow { margin: 0 0 0.5rem; color: var(--primary); font-size: 0.74rem; font-weight: 650; letter-spacing: 0.28em; text-transform: uppercase; }
h1 { margin: 0 0 0.75rem; font-size: clamp(1.8rem, 5vw, 2.6rem); line-height: 1.1; letter-spacing: -0.02em; }
.lead { margin: 0 0 1.25rem; color: var(--muted); font-size: 1.05rem; max-width: 46ch; }
.card {
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: var(--surface);
  padding: 1.25rem 1.35rem;
  margin: 1rem 0;
}
.proof { width: 100%; border-radius: 1rem; border: 1px solid var(--border); display: block; }
.actions { display: grid; gap: 0.75rem; grid-template-columns: 1fr 1fr; margin-top: 1.25rem; }
@media (max-width: 640px) { .actions { grid-template-columns: 1fr; } }
.btn {
  display: flex; flex-direction: column; gap: 0.35rem;
  padding: 1.1rem 1.2rem; border-radius: 1.1rem; text-decoration: none; color: #fff;
  border: 1px solid rgba(77,163,255,0.35);
}
.btn-mini { background: linear-gradient(145deg, #2d7fdd, #2aabee); }
.btn-app { background: #18233a; }
.btn-kicker { font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(243,247,255,0.72); }
.btn-title { font-size: 1.15rem; font-weight: 700; }
.nav { margin-top: 2rem; color: var(--muted); font-size: 0.85rem; }
.nav a { color: var(--primary); text-decoration: none; }
ol { margin: 0; padding-left: 1.2rem; color: var(--muted); }
li { margin: 0.4rem 0; }
.price { font-size: 1.4rem; font-weight: 700; }
.muted { color: var(--muted); }
code { color: var(--teal); }

/* Deep SEO Enhancements: typography, accordion, comparisons, checklists */
h2 {
  margin: 1.8rem 0 0.8rem;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fg);
}
h3 {
  margin: 1.2rem 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 650;
  color: var(--teal);
}
p {
  margin: 0.6rem 0;
  color: var(--muted);
  line-height: 1.6;
}
.badge-tag {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(93, 240, 218, 0.12);
  color: var(--teal);
  border: 1px solid rgba(93, 240, 218, 0.25);
  margin-bottom: 0.5rem;
}
.checklist {
  list-style: none;
  padding: 0;
  margin: 0.8rem 0;
}
.checklist li {
  position: relative;
  padding-left: 1.6rem;
  margin: 0.6rem 0;
  color: var(--fg);
  font-size: 0.95rem;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--teal);
  font-weight: bold;
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.88rem;
}
.comparison-table th, .comparison-table td {
  padding: 0.75rem 0.6rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.comparison-table th {
  color: var(--primary);
  font-weight: 650;
  background: rgba(11, 16, 32, 0.5);
}
.comparison-table td {
  color: var(--muted);
}
.comparison-table tr:hover td {
  color: var(--fg);
}
details.faq-item {
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  background: rgba(24, 35, 58, 0.45);
  margin: 0.65rem 0;
  padding: 0.85rem 1rem;
  transition: border-color 0.2s ease;
}
details.faq-item[open] {
  border-color: rgba(77, 163, 255, 0.45);
  background: rgba(24, 35, 58, 0.75);
}
details.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--fg);
  outline: none;
  user-select: none;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--primary);
  font-weight: 400;
}
details.faq-item[open] summary::after {
  content: "−";
}
details.faq-item p {
  margin-top: 0.65rem;
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.55;
}