* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0a0a0a;
  color: #e0e0e0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, monospace;
  padding: 2rem;
}

html { overflow-x: clip; }
body { overflow-x: clip; }

main {
  width: 100%;
  max-width: 480px;
  min-width: 0;
  text-align: center;
}

/* Nothing may widen the page on a phone. */
img, video, svg { max-width: 100%; height: auto; }
pre { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
code { overflow-wrap: anywhere; }
p, li, td, h1, h2, h3, a { overflow-wrap: break-word; }
table { display: block; max-width: 100%; overflow-x: auto; }

@media (max-width: 600px) {
  body { padding: 1rem 0.9rem; }
  h1 { font-size: 2rem; }
  .tagline { font-size: 1rem; }
}

h1 {
  font-size: 2.5rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  color: #fff;
}

.tagline {
  font-size: 1.1rem;
  color: #888;
  margin-bottom: 2.5rem;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: #666;
  padding: 0.5rem 1rem;
  border: 1px solid #222;
  border-radius: 2px;
  margin-bottom: 3rem;
}

.dot {
  width: 6px;
  height: 6px;
  background: #444;
  border-radius: 50%;
}

/* Finger info */
.finger-info {
  text-align: left;
  margin-bottom: 2rem;
  padding: 1.5rem;
  border: 1px solid #1a1a1a;
  border-radius: 4px;
  background: #0d0d0d;
}

.finger-info h2 {
  font-size: 1rem;
  font-weight: 500;
  color: #ccc;
  margin-bottom: 0.5rem;
  font-family: 'SF Mono', Monaco, Consolas, monospace;
}

/* Signup form */
.signup {
  text-align: left;
  margin-bottom: 3rem;
  padding: 1.5rem;
  border: 1px solid #1a1a1a;
  border-radius: 4px;
  background: #0d0d0d;
}

.signup h2 {
  font-size: 1rem;
  font-weight: 500;
  color: #ccc;
  margin-bottom: 0.5rem;
}

.signup-note {
  font-size: 0.85rem;
  color: #555;
  margin-bottom: 1.25rem;
}

.field {
  margin-bottom: 1rem;
}

.field label {
  display: block;
  font-size: 0.8rem;
  color: #666;
  margin-bottom: 0.35rem;
}

.field .required {
  color: #555;
}

.field input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: #111;
  border: 1px solid #222;
  border-radius: 2px;
  color: #e0e0e0;
  font-size: 0.9rem;
  font-family: inherit;
}

.field input::placeholder {
  color: #444;
}

.field input:focus {
  outline: none;
  border-color: #333;
}

button {
  width: 100%;
  padding: 0.7rem 1rem;
  background: #1a1a1a;
  border: 1px solid #333;
  border-radius: 2px;
  color: #ccc;
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

button:hover {
  background: #222;
  border-color: #444;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-message {
  margin-top: 1rem;
  padding: 0.6rem 0.75rem;
  font-size: 0.85rem;
  border-radius: 2px;
}

.form-message.success {
  background: #0d1a0d;
  border: 1px solid #1a3a1a;
  color: #6a9a6a;
}

.form-message.error {
  background: #1a0d0d;
  border: 1px solid #3a1a1a;
  color: #9a6a6a;
}

/* API info */
.api-info {
  text-align: left;
  margin-bottom: 2.5rem;
  padding: 1rem;
  border: 1px solid #1a1a1a;
  border-radius: 4px;
  background: #0d0d0d;
}

.api-info h3 {
  font-size: 0.75rem;
  font-weight: 500;
  color: #555;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.api-info pre {
  font-size: 0.75rem;
  color: #666;
  overflow-x: auto;
  line-height: 1.5;
}

.api-info code {
  font-family: 'SF Mono', Monaco, Consolas, monospace;
}

.note {
  font-size: 0.8rem;
  color: #333;
  text-align: center;
}