:root {
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: #FFFFFF;
  color: #0A0A0A;
  display: flex;
  justify-content: center;
  padding: 48px 20px;
}
main {
  width: 100%;
  max-width: 480px;
}
.badge {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: #0A0A0A;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.badge span {
  color: #FFFFFF;
  font-weight: 800;
  font-size: 22px;
}
h1 {
  font-size: 24px;
  font-weight: 800;
  margin: 0 0 8px;
}
p.lead {
  color: #6B7280;
  font-size: 15px;
  line-height: 1.5;
  margin: 0 0 28px;
}
label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.4px;
  color: #6B7280;
  margin-bottom: 6px;
}
input, textarea {
  width: 100%;
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 12px;
  margin-bottom: 20px;
  font-family: inherit;
  background: #F5F5F7;
  color: #0A0A0A;
}
textarea {
  resize: vertical;
  min-height: 80px;
}
button {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 12px;
  background: #EF4444;
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}
button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
#message {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.5;
  display: none;
  padding: 12px 14px;
  border-radius: 10px;
}
#message.success {
  display: block;
  background: rgba(34,197,94,0.12);
  color: #15803D;
}
#message.error {
  display: block;
  background: rgba(239,68,68,0.12);
  color: #B91C1C;
}
ul {
  color: #6B7280;
  font-size: 14px;
  line-height: 1.6;
  padding-left: 20px;
}
h2 {
  font-size: 16px;
  font-weight: 700;
  margin: 32px 0 8px;
}