:root {
  --zinc-950: #18181b; --zinc-700: #3f3f46; --zinc-600: #52525b;
  --zinc-500: #71717a; --zinc-200: #e4e4e7; --zinc-100: #f4f4f5;
  --zinc-50: #fafafa; --white: #ffffff;
  --success-fg: #047857; --danger-fg: #b91c1c;
  --font-sans: -apple-system, "Helvetica Neue", Helvetica, system-ui, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0; font-family: var(--font-sans); color: var(--zinc-950);
  background: var(--zinc-50); line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
main { max-width: 640px; margin: 0 auto; padding: 64px 24px 48px; }
.logo { width: 216px; max-width: 70vw; height: auto; display: block; }
h1 { font-size: 32px; letter-spacing: -0.02em; line-height: 1.2; margin: 40px 0 12px; text-wrap: balance; }
.sub { font-size: 17px; color: var(--zinc-600); margin: 0 0 28px; }
.features { list-style: none; padding: 0; margin: 0 0 36px; }
.features li { padding: 6px 0 6px 28px; position: relative; color: var(--zinc-700); }
.features li::before { content: "✓"; position: absolute; left: 0; color: var(--success-fg); font-weight: 600; }

.waitlist { display: flex; gap: 8px; flex-wrap: wrap; }
.waitlist input[type="email"] {
  flex: 1 1 220px; min-height: 48px; padding: 12px 14px; font-size: 16px;
  font-family: inherit; color: inherit;
  border: 1px solid var(--zinc-200); border-radius: 8px; background: var(--white);
}
.waitlist input[type="email"]:focus-visible { outline: 2px solid var(--zinc-500); outline-offset: 1px; }
.waitlist button {
  min-height: 48px; padding: 12px 20px; font-size: 16px; font-weight: 600; cursor: pointer;
  font-family: inherit; touch-action: manipulation;
  background: var(--zinc-950); color: var(--white); border: 0; border-radius: 8px;
  transition-property: background-color, transform;
  transition-duration: 150ms;
}
.waitlist button:hover { background: var(--zinc-700); }
.waitlist button:focus-visible { outline: 2px solid var(--zinc-500); outline-offset: 2px; }
.waitlist button:active { transform: scale(0.96); }
@media (prefers-reduced-motion: reduce) {
  .waitlist button { transition: none; }
  .waitlist button:active { transform: none; }
}
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { min-height: 22px; margin: 10px 0 0; font-size: 14px; flex-basis: 100%; }
.form-msg.ok { color: var(--success-fg); }
.form-msg.err { color: var(--danger-fg); }

footer {
  max-width: 640px; margin: 0 auto; padding: 24px;
  border-top: 1px solid var(--zinc-100); color: var(--zinc-500); font-size: 13px;
}
footer a { color: var(--zinc-600); }
footer p { margin: 4px 0; }

/* legal pages */
.legal main { padding-top: 40px; }
.legal h1 { font-size: 26px; }
.legal h2 { font-size: 18px; margin-top: 28px; }
.legal p, .legal li { color: var(--zinc-700); font-size: 15px; }
.legal .updated { color: var(--zinc-500); font-size: 13px; }

/* thanks page (no-JS fallback) */
.thanks main { padding-top: 96px; text-align: center; }