/* Colors live here. Change --accent to rebrand the whole page. */
:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-text: #ffffff;
  --success: #047857;
  --error: #b91c1c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --surface: #151821;
    --text: #f3f4f6;
    --muted: #9ca3af;
    --border: #262a36;
    --accent: #818cf8;
    --accent-hover: #a5b4fc;
    --accent-text: #0b0d12;
    --success: #34d399;
    --error: #f87171;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; }

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

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.125rem;
}

.hero {
  max-width: 640px;
  margin: 72px auto 64px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 6vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.lede {
  margin: 0 auto 32px;
  color: var(--muted);
  font-size: 1.125rem;
}

.form {
  display: flex;
  gap: 8px;
  max-width: 460px;
  margin: 0 auto;
}

.form input[type="email"] {
  flex: 1;
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.form input[type="email"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: transparent;
}

.form button {
  padding: 12px 18px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.form button:hover { background: var(--accent-hover); }
.form button:disabled { opacity: 0.6; cursor: wait; }

.status {
  min-height: 1.6em;
  margin: 12px 0 0;
  font-weight: 500;
}
.status.success { color: var(--success); }
.status.error { color: var(--error); }

.fineprint {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.875rem;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.features article {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}

.features h2 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.features p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer {
  margin-top: 64px;
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
}

/* Hidden but available to screen readers */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Spam honeypot: invisible to people */
.hp { position: absolute; left: -9999px; }

@media (max-width: 640px) {
  .hero { margin: 48px auto 48px; }
  .form { flex-direction: column; }
  .features { grid-template-columns: 1fr; }
}