:root {
  --indigo: #4f46e5;
  --indigo-600: #4f46e5;
  --indigo-700: #4338ca;
  --indigo-50: #eef2ff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --ok: #059669;
  --err: #dc2626;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 12px 32px -12px rgba(15, 23, 42, .16);
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
a { color: inherit; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 780px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--indigo); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; }
.brand-mark { display: inline-flex; }
.brand-name { font-size: 1.05rem; letter-spacing: -0.01em; }
.brand-name.small { font-size: .95rem; }
.nav-links { display: none; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: .93rem; font-weight: 500; }
.nav-links a:hover { color: var(--ink); }
.nav .btn { margin-left: auto; }
@media (min-width: 800px) {
  .nav-links { display: flex; }
  .nav .btn { margin-left: 0; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--indigo); color: #fff; border: 0; cursor: pointer;
  font: inherit; font-weight: 600; font-size: .95rem;
  padding: 12px 20px; border-radius: 10px; text-decoration: none;
  transition: background .15s ease, transform .05s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--indigo-700); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: default; }
.btn-sm { padding: 9px 14px; font-size: .88rem; }

/* Hero */
.hero {
  position: relative;
  background:
    radial-gradient(60% 60% at 50% 0%, var(--indigo-50) 0%, rgba(238, 242, 255, 0) 70%),
    var(--bg);
  padding: 72px 0 64px;
  text-align: center;
}
.hero-inner { display: flex; flex-direction: column; align-items: center; }
.badge {
  display: inline-block; margin: 0 0 18px;
  background: #fff; border: 1px solid var(--line); color: var(--indigo-700);
  font-size: .78rem; font-weight: 600; letter-spacing: .02em;
  padding: 6px 12px; border-radius: 999px;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.25rem); max-width: 18ch; font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--indigo); }
.lead { margin-top: 18px; max-width: 62ch; color: var(--muted); font-size: 1.12rem; }

/* Waitlist */
.waitlist { margin-top: 28px; width: 100%; max-width: 560px; }
.waitlist-row { display: flex; gap: 10px; }
.waitlist-row.two { margin-top: 10px; flex-wrap: wrap; }
.waitlist-row.two input { flex: 1 1 220px; }
.waitlist input[type="email"],
.waitlist input[type="text"] {
  flex: 1; width: 100%; font: inherit; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; transition: border-color .15s ease, box-shadow .15s ease;
}
.waitlist input:focus {
  outline: none; border-color: var(--indigo);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, .15);
}
.hp {
  position: absolute !important; left: -9999px !important;
  width: 1px; height: 1px; opacity: 0; pointer-events: none;
}
.form-note { margin-top: 10px; font-size: .82rem; color: var(--muted); }
.form-status { margin-top: 8px; font-size: .88rem; min-height: 1.2em; }
.form-status.ok { color: var(--ok); }
.form-status.err { color: var(--err); }

.hero-points {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 22px;
  list-style: none; padding: 0; margin: 30px 0 0;
  color: var(--muted); font-size: .9rem;
}
.hero-points li { position: relative; padding-left: 20px; }
.hero-points li::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 8px; height: 8px; border-radius: 2px; background: var(--indigo);
}

/* Sections */
.section { padding: 72px 0; }
.section-title { text-align: center; font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; }
.section-sub { text-align: center; color: var(--muted); margin-top: 10px; }
.grid { display: grid; gap: 18px; margin-top: 36px; }
.grid-3 { grid-template-columns: 1fr; }
@media (min-width: 720px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
}
.card h3 { font-size: 1.05rem; font-weight: 650; }
.card p { margin-top: 8px; color: var(--muted); font-size: .95rem; }

.problem { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.audience { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.features { border-top: 1px solid var(--line); }

.step { position: relative; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 10px; margin-bottom: 14px;
  background: var(--indigo-50); color: var(--indigo-700); font-weight: 700;
}

/* FAQ */
.faq details {
  border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px;
  margin-top: 12px; background: #fff;
}
.faq summary { cursor: pointer; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin-top: 10px; color: var(--muted); font-size: .95rem; }

/* CTA */
.cta-card {
  text-align: center; padding: 44px 28px; border-radius: 20px;
  background: linear-gradient(135deg, var(--indigo) 0%, #7c3aed 100%);
  color: #fff; box-shadow: var(--shadow);
}
.cta-card h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
.cta-card p { margin-top: 10px; color: rgba(255, 255, 255, .86); }
.cta-card .waitlist { margin-left: auto; margin-right: auto; }
.cta-card .waitlist input { border-color: transparent; }
.cta-card .form-status.ok { color: #d1fae5; }
.cta-card .form-status.err { color: #fee2e2; }
.cta-card .btn { background: #fff; color: var(--indigo-700); }
.cta-card .btn:hover { background: #f1f5f9; }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 28px 0; background: var(--bg-soft); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; color: var(--muted); font-size: .88rem; }
.footer-tag { flex: 1; }
.footer-copy { margin-left: auto; }