/* Trang thanh toán */
.buy {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 20px 56px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.buy h1 {
  margin: 0;
  color: var(--c-dark);
  font-size: 32px;
}

.step {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step h2 {
  margin: 0;
  font-size: 19px;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
}

.step .n {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--c);
  color: #ffffff;
  font-size: 14px;
  flex-shrink: 0;
}

.plans {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.plan-opt {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
}

.plan-opt:has(input:checked) {
  border: 2px solid var(--c);
  background: #f2f7fe;
}

.po-name {
  font-weight: 600;
  flex: 1;
}

.po-price {
  color: var(--c-dark);
  font-weight: 700;
}

.fields {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 10px 14px;
  align-items: center;
}

.fields input {
  font: inherit;
  padding: 9px 12px;
  border: 1px solid #c9d2dd;
  border-radius: 8px;
  width: 100%;
}

.fields input:focus {
  outline: 2px solid var(--c);
  border-color: var(--c);
}

.fields .hint {
  grid-column: 2;
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.order {
  margin: 0;
  font-size: 15px;
}

.order b {
  font-family: Consolas, monospace;
  letter-spacing: 1px;
  color: var(--c-dark);
}

.methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 14px;
}

.method {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
  background: var(--bg);
}

.method h3 {
  margin: 0;
  font-size: 16px;
}

.muted-s {
  color: var(--muted);
  font-weight: 400;
  font-size: 13.5px;
}

#qr {
  width: 100%;
  max-width: 270px;
  height: auto;
  border-radius: 10px;
  background: #ffffff;
  align-self: center;
}

.bank {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 12px;
  margin: 0;
  font-size: 14px;
  width: 100%;
}

.bank dt {
  color: var(--muted);
}

.bank dd {
  margin: 0;
  word-break: break-word;
}

.copy {
  border: 1px solid var(--line);
  background: #ffffff;
  border-radius: 5px;
  cursor: pointer;
  padding: 0 6px;
  font-size: 13px;
}

.btn.paypal {
  background: #ffc439;
  color: #003087;
}

.warn-mail {
  margin: 0;
  color: #b45309;
  font-weight: 600;
}

.summary {
  margin: 0;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px dashed #c9d2dd;
  border-radius: 8px;
  font-size: 13.5px;
  white-space: pre-wrap;
  word-break: break-word;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.actions .btn {
  margin: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  background: #ffffff;
}

@media (max-width: 640px) {
  .plans,
  .fields {
    grid-template-columns: 1fr;
  }

  .fields .hint {
    grid-column: 1;
  }
}

/* Đơn hàng & trạng thái thanh toán */
.order-tag {
  margin-left: auto;
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
}

.order-tag b {
  font-family: Consolas, monospace;
  letter-spacing: 1px;
  color: var(--c-dark);
}

.pay-status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  background: #fff8e1;
  color: #8a5a00;
  font-weight: 600;
  font-size: 14.5px;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid #f0c36d;
  border-top-color: #8a5a00;
  border-radius: 50%;
  flex-shrink: 0;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .spinner { animation: none; }
}

.step.success {
  border: 2px solid #2e7d32;
  background: #f1f8f2;
}

.key-box {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 8px;
  background: #ffffff;
  border: 1px dashed #2e7d32;
  font-family: Consolas, monospace;
  font-size: 20px;
  letter-spacing: 1px;
}

#btn-create[disabled] {
  opacity: 0.6;
  cursor: wait;
}

.btn-reported {
  margin: 4px 0 0;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  background: #2e7d32;
}

.btn-reported:hover {
  background: #1b5e20;
}

.btn-reported[disabled] {
  opacity: 0.6;
  cursor: wait;
}

.ok-note {
  color: #2e7d32;
  font-weight: 600;
}