.conversation-workspace.payment-workspace {
  grid-template-columns: 76px minmax(0, 1fr);
}

.payment-workspace .payment-workspace-content {
  min-height: 0;
  padding: var(--space-6);
  overflow-y: auto;
}

.payment-page { width: min(920px, 100%); margin: 0 auto; color: var(--fg); }
.payment-section-heading, .payment-submit-row, .payment-qr-panel { display: flex; align-items: center; justify-content: space-between; }
.payment-kicker { margin: 0; color: var(--meta); font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 680; text-transform: uppercase; }

.payment-panel {
  padding: var(--space-6);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: color-mix(in oklab, var(--surface) 90%, var(--bg));
}

.payment-panel h2, .payment-history h2, .payment-qr-panel h2 { margin: 0; color: var(--fg); font-size: var(--text-base); }
.payment-panel h2 { margin-bottom: var(--space-5); }
.payment-amount-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-3); }
.payment-amount-option { position: relative; min-width: 0; }
.payment-amount-option input { position: absolute; opacity: 0; pointer-events: none; }

.payment-amount-option span {
  display: grid;
  place-items: center;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg-2);
  font-size: var(--text-sm);
  font-weight: 680;
  cursor: pointer;
  transition: background var(--motion-base) var(--ease-standard), border-color var(--motion-base) var(--ease-standard), color var(--motion-base) var(--ease-standard);
}

.payment-amount-option input:checked + span {
  border-color: var(--accent);
  background: color-mix(in oklab, var(--accent) 12%, var(--surface));
  color: var(--fg);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.payment-amount-option input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.payment-custom-field { display: block; margin-top: var(--space-5); color: var(--fg-2); font-size: var(--text-sm); font-weight: 650; }
.payment-custom-field[hidden] { display: none; }
.payment-currency-input { position: relative; max-width: 280px; margin-top: var(--space-2); }
.payment-currency-input > span { position: absolute; z-index: 1; top: 50%; left: 12px; transform: translateY(-50%); color: var(--muted); }

.payment-currency-input input {
  width: 100%;
  min-height: 42px;
  padding: 9px 12px 9px 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--fg);
}

.payment-currency-input input:focus { border-color: var(--accent); outline: 0; box-shadow: 0 0 0 2px color-mix(in oklab, var(--accent) 22%, transparent); }
.payment-submit-row { gap: var(--space-5); margin-top: var(--space-6); padding-top: var(--space-5); border-top: 1px solid var(--border); }
.payment-submit-row strong { color: var(--fg); font-size: var(--text-xl); }
.payment-submit-row .btn:disabled { opacity: .5; cursor: not-allowed; }
.payment-error, .payment-alert { color: var(--danger); }
.payment-error { margin: var(--space-3) 0 0; font-size: var(--text-sm); }

.payment-alert {
  margin-bottom: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid color-mix(in oklab, var(--danger) 48%, var(--border));
  border-radius: var(--radius-sm);
  background: color-mix(in oklab, var(--danger) 9%, var(--surface));
}

.payment-qr-panel {
  gap: var(--space-6);
  margin-top: var(--space-5);
  padding: var(--space-6);
  border: 1px solid color-mix(in oklab, var(--success) 46%, var(--border));
  border-radius: var(--radius-md);
  background: color-mix(in oklab, var(--success) 7%, var(--surface));
}

.payment-qr-panel[hidden] { display: none; }
.payment-qr-copy h2 { margin-top: var(--space-1); }
.payment-qr-copy > p:last-child { margin: var(--space-3) 0 0; color: var(--fg-2); }
.payment-qr-code { width: 224px; height: 224px; flex: 0 0 224px; padding: var(--space-2); border-radius: var(--radius-sm); background: #fff; }
.payment-qr-code canvas { display: block; width: 208px; height: 208px; }
.payment-qr-panel[data-status="credited"] { border-color: var(--success); }
.payment-qr-panel[data-status="failed"], .payment-qr-panel[data-status="expired"] { border-color: color-mix(in oklab, var(--danger) 48%, var(--border)); background: color-mix(in oklab, var(--danger) 9%, var(--surface)); }
.payment-history { margin-top: var(--space-8); }
.payment-section-heading { margin-bottom: var(--space-3); }

.payment-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: color-mix(in oklab, var(--surface) 90%, var(--bg));
}

.payment-table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.payment-table th, .payment-table td { padding: 13px 15px; border-bottom: 1px solid var(--border); color: var(--fg-2); text-align: left; white-space: nowrap; }
.payment-table th { color: var(--muted); font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; }
.payment-table tbody tr:last-child td { border-bottom: 0; }
.payment-table code { color: var(--fg); font-size: var(--text-xs); }
.payment-status { display: inline-block; color: var(--fg-2); font-weight: 680; }
.payment-status-credited { color: var(--success); }
.payment-status-failed, .payment-status-expired { color: var(--danger); }
.payment-status-paid { color: var(--meta); }
.payment-empty { padding: var(--space-8) 0; color: var(--muted); }

@media (max-width: 1180px) {
  .conversation-workspace.payment-workspace { grid-template-columns: 72px minmax(0, 1fr); }
}

@media (max-width: 920px) {
  .conversation-workspace.payment-workspace { grid-template-columns: 1fr; }
  .payment-workspace .payment-workspace-content { padding: var(--space-4); }
}

@media (max-width: 720px) {
  .payment-workspace .workspace-topbar { align-items: center; flex-direction: row; }
  .payment-workspace .agent-bar, .payment-workspace .top-actions { width: auto; }
  .payment-amount-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .payment-panel { padding: var(--space-4); }
  .payment-qr-panel { align-items: flex-start; flex-direction: column; }
  .payment-qr-code { align-self: center; }
  .payment-table th:first-child, .payment-table td:first-child { max-width: 150px; overflow: hidden; text-overflow: ellipsis; }
}