:root {
  --bg: #0a0a0a;
  --fg: #fafafa;
  --muted: #a3a3a3;
  --accent: #3b82f6;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 42rem;
  margin: auto;
  padding: 2rem;
}
.brand {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 2rem;
  letter-spacing: 0.05em;
}
h1 {
  font-size: clamp(2rem, 6vw, 3.75rem);
  line-height: 1.05;
  font-weight: 600;
  margin: 0 0 1rem 0;
  letter-spacing: -0.02em;
}
p {
  color: var(--muted);
  font-size: 1.125rem;
  margin: 0 0 2rem 0;
  max-width: 28rem;
}
form {
  display: flex;
  gap: 0.5rem;
  max-width: 28rem;
  flex-wrap: wrap;
}
input {
  flex: 1;
  min-width: 14rem;
  padding: 0.75rem 1rem;
  border: 1px solid #262626;
  background: #171717;
  color: var(--fg);
  border-radius: 0.5rem;
  font-size: 1rem;
}
input:focus {
  outline: none;
  border-color: var(--accent);
}
button {
  padding: 0.75rem 1.25rem;
  border: 0;
  border-radius: 0.5rem;
  background: var(--accent);
  color: white;
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
}
button:hover { background: #2563eb; }