:root {
  --flow-panel: rgba(255, 255, 255, 0.9);
  --flow-line: rgba(15, 17, 20, 0.14);
  --flow-muted: #5d636c;
  --flow-success: #0f766e;
  --flow-danger: #b42318;
}

body.flow-page {
  min-height: 100vh;
}

.flow-main {
  width: min(92%, 980px);
  margin: 0 auto;
  padding: clamp(28px, 4vw, 48px) 0 clamp(48px, 7vw, 84px);
  display: grid;
  gap: 20px;
}

.flow-top {
  display: grid;
  gap: 12px;
}

.flow-top p {
  max-width: 68ch;
  color: var(--flow-muted);
}

.flow-stepper {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.flow-step {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--flow-line);
  background: rgba(224, 226, 229, 0.45);
  color: var(--flow-muted);
  font-size: 0.88rem;
  text-align: center;
}

.flow-step.is-active {
  color: #fff;
  background: var(--accent-500);
  border-color: var(--accent-500);
}

.flow-step.is-complete {
  color: var(--flow-success);
  border-color: color-mix(in oklab, var(--flow-success) 36%, white);
  background: color-mix(in oklab, var(--flow-success) 9%, white);
}

.flow-panel {
  border: 1px solid var(--flow-line);
  border-radius: var(--radius-md);
  background: var(--flow-panel);
  box-shadow: var(--shadow-soft);
  padding: clamp(16px, 2.3vw, 28px);
  display: grid;
  gap: 14px;
}

.flow-panel h2,
.flow-panel h3 {
  margin: 0;
}

.flow-panel p {
  color: var(--flow-muted);
}

.checkout-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

.checkout-grid .flow-panel {
  height: 100%;
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.flow-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  color: var(--flow-muted);
}

.flow-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.checkout-payment-panel {
  gap: 10px;
}

.checkout-payment-panel > p {
  margin: 0;
}

.checkout-payment-panel .flow-status:empty {
  display: none;
  min-height: 0;
}

.payment-cta-row {
  flex-wrap: nowrap;
  align-items: center;
}

.payment-cta-row .btn {
  flex: 0 0 auto;
  width: auto;
}

.flow-meta {
  display: grid;
  gap: 7px;
  margin: 0;
  color: var(--flow-muted);
}

.flow-meta div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: baseline;
}

.flow-meta dt {
  font-weight: 700;
}

.flow-meta dd {
  margin: 0;
}

.flow-rule {
  border: 0;
  border-top: 1px solid var(--flow-line);
  margin: 2px 0;
}

.flow-total dd {
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--black-900);
}

.flow-form {
  display: grid;
  gap: 10px;
}

.flow-label {
  display: grid;
  gap: 6px;
  color: var(--flow-muted);
  font-weight: 700;
}

.flow-label input {
  width: 100%;
  border: 1px solid var(--flow-line);
  border-radius: 10px;
  padding: 10px;
  background: #fff;
  color: var(--black-900);
  font-family: var(--font-body);
}

.flow-inline {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.flow-checkbox {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  color: var(--flow-muted);
}

.flow-checkbox input {
  margin-top: 2px;
}

.flow-status {
  min-height: 22px;
  margin: 0;
  color: var(--flow-muted);
}

.flow-status.is-success {
  color: var(--flow-success);
}

.flow-status.is-error {
  color: var(--flow-danger);
}

.flow-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.82rem;
  background: rgba(15, 17, 20, 0.08);
  color: var(--black-900);
}

.flow-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.flow-checklist li {
  border: 1px solid var(--flow-line);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--flow-muted);
}

.flow-checklist li.is-done {
  border-color: color-mix(in oklab, var(--flow-success) 45%, white);
  background: color-mix(in oklab, var(--flow-success) 9%, white);
  color: #0f5b54;
}

.flow-hint {
  font-size: 0.9rem;
}

.flow-link {
  color: var(--black-900);
}

#square-card-container {
  min-height: 78px;
  border: 1px solid var(--flow-line);
  border-radius: 10px;
  background: #fff;
  padding: 12px;
}

.btn[disabled] {
  opacity: 0.58;
  pointer-events: none;
}

@media (max-width: 820px) {
  .checkout-grid {
    grid-template-columns: 1fr;
  }

  .flow-grid {
    grid-template-columns: 1fr;
  }

  .flow-stepper {
    grid-template-columns: 1fr 1fr;
  }
}