:root {
  --indigo: #5b4cf2;
  --violet: #8b5cf6;
  --grad: linear-gradient(135deg, var(--indigo) 0%, var(--violet) 100%);
  --bg: #f6f6fb;
  --surface: #ffffff;
  --text: #191b2e;
  --muted: #5d6178;
  --line: rgba(25, 27, 46, 0.09);
  --shadow: 0 1px 2px rgba(25, 27, 46, 0.05), 0 8px 28px rgba(60, 50, 160, 0.08);
  --radius: 18px;
  --danger: #e04b5c;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1020;
    --surface: #181a2e;
    --text: #eceefb;
    --muted: #a3a7c4;
    --line: rgba(236, 238, 251, 0.1);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }
a { color: var(--indigo); text-decoration: none; }
a:hover { text-decoration: underline; }
@media (prefers-color-scheme: dark) { a { color: #a99cff; } }

.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; padding-top: 48px; padding-bottom: 48px; }
.section { padding-top: 40px; padding-bottom: 40px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; }
.lead { font-size: 1.15rem; color: var(--muted); }
.fine { font-size: 0.875rem; color: var(--muted); }
.eyebrow { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.8rem; font-weight: 600; color: var(--violet); margin: 0 0 12px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* header / footer */
.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px); border-bottom: 1px solid var(--line); }
.header-row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--grad);
  color: #fff; font-size: 0.85rem; font-weight: 700; box-shadow: 0 4px 12px rgba(91, 76, 242, 0.35); }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a:not(.btn) { color: var(--muted); font-weight: 500; }
.site-footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: 0.9rem; }
.footer-row { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; }
.footer-row p { margin: 0; }
.footer-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-nav a { color: var(--muted); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border-radius: 12px;
  background: var(--grad); color: #fff !important; font-weight: 600; border: 0; cursor: pointer; font-size: 1rem;
  box-shadow: 0 6px 18px rgba(91, 76, 242, 0.3); transition: transform 0.12s ease, box-shadow 0.12s ease; }
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 10px 24px rgba(91, 76, 242, 0.38); }
.btn-small { padding: 7px 14px; font-size: 0.9rem; }
.btn-large { padding: 14px 24px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn-ghost { background: transparent; color: var(--indigo) !important; box-shadow: inset 0 0 0 1.5px color-mix(in srgb, var(--indigo) 45%, transparent); }
.btn-ghost:hover { box-shadow: inset 0 0 0 1.5px var(--indigo); }
@media (prefers-color-scheme: dark) { .btn-ghost { color: #c3b9ff !important; } }

/* cards */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
.center { text-align: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature p { color: var(--muted); margin: 0; }
.feature-icon { font-size: 1.6rem; width: 48px; height: 48px; display: grid; place-items: center; border-radius: 14px;
  background: color-mix(in srgb, var(--violet) 14%, transparent); margin-bottom: 14px; }

/* hero */
.hero { padding: 64px 0 32px; background:
  radial-gradient(900px 400px at 85% -10%, color-mix(in srgb, var(--violet) 22%, transparent), transparent 70%),
  radial-gradient(700px 360px at -10% 10%, color-mix(in srgb, var(--indigo) 16%, transparent), transparent 70%); }
.hero-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 48px; align-items: center; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 12px; }
.demo { display: flex; flex-direction: column; gap: 6px; }
.demo hr { border: 0; border-top: 1px solid var(--line); margin: 14px 0; width: 100%; }
.demo-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.demo-label { color: var(--muted); font-size: 0.85rem; }
.demo code { font: 600 1.25rem/1.3 ui-monospace, "SF Mono", Menlo, monospace; padding: 6px 12px; border-radius: 10px;
  background: color-mix(in srgb, var(--indigo) 9%, transparent); }
.demo-row:nth-child(3) code, .demo-row:last-child code { background: var(--grad); color: #fff; }
.demo-arrow { text-align: center; color: var(--violet); font-weight: 700; }

/* pricing */
.price-card { max-width: 460px; margin: 0 auto; }
.price { display: flex; align-items: baseline; gap: 8px; margin-bottom: 12px; }
.amount { font-size: 3.2rem; font-weight: 800; letter-spacing: -0.03em; }
.per { color: var(--muted); font-size: 1.1rem; }
.checks { list-style: none; padding: 0; margin: 0 0 24px; }
.checks li { position: relative; padding: 6px 0 6px 30px; }
.checks li::before { content: "✓"; position: absolute; left: 0; top: 6px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--grad); color: #fff; font-size: 0.75rem; display: grid; place-items: center; }

/* faq */
.faq { display: grid; gap: 12px; }
.faq details { padding: 18px 22px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { color: var(--muted); margin: 10px 0 0; }

/* prose (legal pages) */
.prose h2 { font-size: 1.25rem; margin-top: 1.8em; }
.prose p, .prose li { color: color-mix(in srgb, var(--text) 85%, var(--muted)); }
.prose ul { padding-left: 1.2em; }

/* forms */
.form { display: grid; gap: 16px; margin-top: 18px; }
.form label { display: grid; gap: 6px; font-weight: 600; font-size: 0.95rem; }
.form input { font: inherit; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg); color: var(--text); }
.form input:focus { outline: 2px solid var(--violet); outline-offset: 1px; border-color: transparent; }
.alert { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); padding: 10px 14px; border-radius: 12px; font-weight: 500; }
.big-check { width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 50%; background: var(--grad); color: #fff;
  font-size: 2rem; display: grid; place-items: center; box-shadow: 0 8px 22px rgba(91, 76, 242, 0.35); }

@media (max-width: 820px) {
  .hero-grid, .grid-3 { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
  .nav a:not(.btn) { display: none; }
  .card { padding: 22px; }
  .narrow { padding-top: 28px; }
}