:root {
  --bg: #0e0e0e;
  --bg-elev: #161616;
  --fg: #f5f5f5;
  --fg-muted: #a7a7a7;
  --fg-subtle: #6b6b6b;
  --accent: #e8e8e8;
  --border: #262626;
  --max-w: 720px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 24px 96px;
}

header.site {
  padding: 32px 24px 0;
  max-width: var(--max-w);
  margin: 0 auto;
}

header.site a.brand {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-decoration: none;
}

h1 {
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 16px;
}

h2 {
  font-size: 20px;
  line-height: 1.3;
  margin: 40px 0 12px;
  font-weight: 600;
}

h3 {
  font-size: 17px;
  line-height: 1.4;
  margin: 28px 0 8px;
  font-weight: 600;
}

p, ul, ol {
  margin: 0 0 16px;
  color: var(--fg);
}

ul, ol { padding-left: 24px; }

li { margin-bottom: 6px; }

a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--fg-subtle);
  text-underline-offset: 3px;
}

a:hover { text-decoration-color: var(--fg); }

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

strong { color: var(--fg); }

em { color: var(--fg-muted); }

code {
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.92em;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 20px;
  font-size: 15px;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

th {
  font-weight: 600;
  color: var(--fg);
  background: var(--bg-elev);
}

footer.site {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px 24px 48px;
  border-top: 1px solid var(--border);
  color: var(--fg-subtle);
  font-size: 14px;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

footer.site a { color: var(--fg-muted); }

.meta {
  color: var(--fg-subtle);
  font-size: 14px;
  margin: -8px 0 24px;
}

.hero {
  padding-top: 24px;
  padding-bottom: 32px;
}

.hero h1 {
  font-size: 40px;
  letter-spacing: -0.025em;
}

.hero .sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 0 28px;
}

.tag {
  display: inline-block;
  font-size: 13px;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.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;
}

form.waitlist {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  max-width: 520px;
  margin: 32px 0 8px;
}

form.waitlist input[type="email"] {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--fg);
  font: inherit;
  font-size: 16px;
  padding: 14px 16px;
  border-radius: 10px;
  outline: none;
  transition: border-color 120ms ease;
}

form.waitlist input[type="email"]::placeholder {
  color: var(--fg-subtle);
}

form.waitlist input[type="email"]:focus {
  border-color: var(--fg-muted);
}

form.waitlist input[type="email"]:user-invalid {
  border-color: #c44;
}

form.waitlist button {
  background: var(--fg);
  color: #0a0a0a;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 20px;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  transition: opacity 120ms ease, transform 120ms ease;
}

form.waitlist button:hover { opacity: 0.92; }
form.waitlist button:active { transform: translateY(1px); }

form.waitlist button:disabled {
  opacity: 0.6;
  cursor: progress;
  transform: none;
}

form.waitlist .hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

form.waitlist .form-note {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--fg-subtle);
}

form.waitlist .form-message {
  grid-column: 1 / -1;
  margin: 8px 0 0;
  font-size: 14px;
  min-height: 1.4em;
}

form.waitlist .form-message[data-state="success"] {
  color: var(--fg);
}

form.waitlist .form-message[data-state="error"] {
  color: #d77;
}

form.waitlist.submitted input[type="email"],
form.waitlist.submitted button {
  opacity: 0.55;
}

@media (max-width: 600px) {
  .hero h1 { font-size: 30px; }
  .container { padding: 32px 20px 64px; }
  header.site { padding: 24px 20px 0; }
  footer.site { padding: 24px 20px 32px; flex-direction: column; gap: 8px; }
  form.waitlist { grid-template-columns: 1fr; }
  form.waitlist button { padding: 14px 20px; }
}