body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f7fb;
  color: #1f2937;
}
.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px;
}
.card {
  background: #fff;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}
h1 { margin-top: 0; font-size: 32px; }
.lead { color: #4b5563; line-height: 1.6; }
.form { display: grid; gap: 18px; margin-top: 24px; }
label span { display: block; margin-bottom: 8px; font-weight: 600; }
input, select, button {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid #d1d5db;
  font-size: 16px;
  box-sizing: border-box;
}
button {
  background: #0f766e;
  color: white;
  border: none;
  font-weight: 700;
  cursor: pointer;
}
button:hover { background: #115e59; }
.alert {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 12px;
}
.alert.error { background: #fee2e2; color: #991b1b; }
.result {
  margin-top: 28px;
  background: #ecfeff;
  border: 1px solid #a5f3fc;
  border-radius: 14px;
  padding: 18px;
}
.result ul { padding-left: 18px; }
a { color: #0f766e; word-break: break-all; }