* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: #f5f6f8;
  color: #1a1a1a;
}
main {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}
.card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  margin-top: 40px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
h1 { font-size: 1.5rem; margin: 0 0 8px; }
h2 { font-size: 1.1rem; margin: 32px 0 12px; }
.subtitle { color: #555; margin: 0 0 20px; }
input[type=email] {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  margin-bottom: 12px;
}
button {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  background: #1b6ec2;
  color: #fff;
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: default; }
.message { margin-top: 16px; color: #1b6ec2; }
.list { display: flex; flex-direction: column; gap: 10px; }
.item {
  background: #fff;
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.item-body { display: flex; flex-direction: column; gap: 4px; }
.item-body span { color: #666; font-size: 0.9rem; }
.item .approve-btn { width: auto; padding: 8px 14px; }
.item.approved { color: #1a7f37; font-weight: 600; }
.empty { color: #777; }