* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #f8f5ff 0%, #ece4ff 100%);
  min-height: 100vh; padding: 20px; display: flex; align-items: center; justify-content: center;
  color: #222;
}
.card { background: #fff; border-radius: 16px; padding: 32px; width: 100%; max-width: 540px;
  box-shadow: 0 10px 40px rgba(106,17,203,0.08); }
.header { text-align: center; margin-bottom: 18px; }
.header h1 { color: #6a11cb; font-weight: 700; font-size: 22px; display: inline-flex;
  align-items: center; gap: 8px; }
.header p { color: #555; margin-top: 4px; font-size: 14px; }
.badge { display: inline-flex; align-items: center; gap: 6px; margin-top: 10px;
  padding: 4px 12px; background: #f0eaff; color: #6a11cb; border-radius: 999px; font-size: 12px; }
.content { margin-top: 8px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 540px) { .row { grid-template-columns: 1fr; } }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: #444; margin-bottom: 6px; font-weight: 500; }
input, select, textarea {
  width: 100%; padding: 11px 12px; border: 1px solid #e1d8ef; border-radius: 8px;
  font-family: inherit; font-size: 14px; background: #fcfaff; transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: #6a11cb; background: #fff; }
.btn { width: 100%; padding: 12px; background: #6a11cb; color: #fff; border: none;
  border-radius: 8px; font-weight: 500; cursor: pointer; font-size: 15px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: background .15s; }
.btn:hover:not(:disabled) { background: #5510a8; }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn.secondary { background: #f0eaff; color: #6a11cb; }
.btn.secondary:hover:not(:disabled) { background: #e3d6ff; }
.alert { padding: 11px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 14px;
  display: flex; align-items: flex-start; gap: 8px; }
.alert.success { background: #e6f6ec; color: #186a3b; }
.alert.error { background: #fde8e8; color: #9b1c1c; }
.alert.info { background: #e7eefc; color: #1e3a8a; }
.hidden { display: none !important; }
.muted { color: #777; font-size: 13px; }
.price-box { background: #faf7ff; border: 1px solid #ece4ff; padding: 14px 16px;
  border-radius: 10px; text-align: center; margin: 8px 0 16px; }
.price-box .label { font-size: 12px; color: #6a11cb; letter-spacing: 1px; text-transform: uppercase; }
.price-box .amount { font-size: 24px; font-weight: 700; color: #222; margin-top: 4px; }
.price-box .note { font-size: 12px; color: #777; margin-top: 4px; }
.info { background: #faf7ff; border-left: 3px solid #6a11cb; padding: 10px 14px;
  border-radius: 6px; font-size: 13px; color: #444; margin-bottom: 14px; }
.method-tabs { display: flex; gap: 10px; margin-bottom: 16px; }
.method-tabs .method {
  flex: 1; padding: 12px; border: 1px solid #e1d8ef; border-radius: 10px;
  cursor: pointer; background: #fff; display: flex; align-items: center; gap: 8px;
  justify-content: center; font-weight: 500; color: #333; transition: all .15s;
}
.method-tabs .method.active { border-color: #6a11cb; background: #f0eaff; color: #6a11cb; }
.icon { width: 18px; height: 18px; flex-shrink: 0; }
.icon-lg { width: 28px; height: 28px; }
code { background: #f4f0fb; padding: 2px 6px; border-radius: 4px; font-size: 13px; }