.legacy-tool-page {
  min-height: 100vh;
  font-family: var(--font-mono);
}

.legacy-tool-page .shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: var(--space-5);
  width: min(1240px, calc(100vw - 32px));
  min-height: calc(100vh - 32px);
  margin: var(--space-4) auto;
}

.legacy-tool-page .shell > * {
  min-width: 0;
}

.legacy-tool-page .workbench,
.legacy-tool-page .ledger {
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--paper-raised) 96%, transparent);
  box-shadow: var(--shadow-hard);
}

.legacy-tool-page .workbench {
  display: grid;
  align-content: start;
  gap: var(--space-5);
  padding: clamp(22px, 4vw, 44px);
}

.legacy-tool-page .workbench-toolbar {
  display: flex;
  justify-content: flex-end;
}

.legacy-tool-page .headline {
  max-width: 760px;
}

.legacy-tool-page .kicker {
  margin: 0 0 var(--space-3);
  color: var(--cobalt);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.legacy-tool-page h1 {
  max-width: none;
  margin: 0;
  font-size: clamp(2.625rem, 8vw, 5.375rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.legacy-tool-page .dek {
  max-width: 700px;
  margin: var(--space-5) 0 0;
  color: var(--muted);
  font-size: var(--step-1);
  line-height: 1.5;
}

.legacy-tool-page .problem {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

.legacy-tool-page .problem > div {
  min-width: 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--line-strong);
}

.legacy-tool-page .problem p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.legacy-tool-page .section-label,
.legacy-tool-page label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 600;
  text-transform: uppercase;
}

.legacy-tool-page .section-label {
  margin: 0 0 var(--space-2);
  color: var(--cobalt);
}

.legacy-tool-page .wallet-address,
.legacy-tool-page code {
  overflow-wrap: anywhere;
}

.legacy-tool-page .checker {
  display: grid;
  gap: var(--space-3);
}

.legacy-tool-page .signer-grid {
  display: grid;
  grid-template-columns: minmax(300px, 420px) minmax(0, 1fr);
  gap: var(--space-4);
  align-items: stretch;
}

.legacy-tool-page .button-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.legacy-tool-page input,
.legacy-tool-page select,
.legacy-tool-page textarea,
.legacy-tool-page button {
  min-height: 48px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-small);
  color: var(--ink);
  font: inherit;
}

.legacy-tool-page input,
.legacy-tool-page select,
.legacy-tool-page textarea {
  width: 100%;
  padding: 0 var(--space-4);
  background: var(--paper);
}

.legacy-tool-page textarea {
  min-height: 230px;
  padding-block: var(--space-4);
  resize: vertical;
  line-height: 1.5;
}

.legacy-tool-page button {
  padding-inline: var(--space-4);
  cursor: pointer;
  background: var(--signal);
  color: var(--signal-ink);
  font-weight: 800;
  transition:
    transform var(--motion-fast) ease-out,
    box-shadow var(--motion-fast) ease-out;
}

.legacy-tool-page button:hover,
.legacy-tool-page .order-link:hover {
  box-shadow: 4px 4px 0 var(--ink);
  transform: translate(-2px, -2px);
}

.legacy-tool-page button:active,
.legacy-tool-page .order-link:active {
  box-shadow: none;
  transform: none;
}

.legacy-tool-page button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
}

.legacy-tool-page .secondary-button,
.legacy-tool-page .secondary-link {
  background: var(--cobalt);
  color: var(--cobalt-ink);
}

.legacy-tool-page .result {
  min-height: 280px;
  border: 1px solid var(--line-strong);
  background: var(--terminal);
  color: var(--terminal-ink);
}

.legacy-tool-page .signer-result {
  min-height: 100%;
}

.legacy-tool-page .dm-result {
  min-height: 150px;
}

.legacy-tool-page .status-line {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 44px;
  padding: 0 var(--space-4);
  border-bottom: 1px solid #3c4942;
  color: var(--signal);
}

.legacy-tool-page .status-line.error {
  color: var(--danger);
}

.legacy-tool-page .status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
}

.legacy-tool-page pre {
  margin: 0;
  padding: var(--space-4);
  overflow: auto;
  color: inherit;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.legacy-tool-page .ledger {
  display: grid;
  align-content: start;
  gap: var(--space-5);
  padding: var(--space-5);
}

.legacy-tool-page .order-link {
  display: grid;
  place-items: center;
  min-height: 48px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-small);
  background: var(--signal);
  color: var(--signal-ink);
  font-weight: 800;
  text-align: center;
  text-decoration: none;
  transition:
    transform var(--motion-fast) ease-out,
    box-shadow var(--motion-fast) ease-out;
}

.legacy-tool-page .order-link.secondary-link {
  background: var(--cobalt);
  color: var(--cobalt-ink);
}

.legacy-tool-page .receipt {
  display: grid;
  gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}

.legacy-tool-page .receipt p {
  margin: 0;
  color: var(--cobalt);
  font-weight: 800;
}

.legacy-tool-page .receipt span {
  color: var(--muted);
  line-height: 1.45;
}

.legacy-tool-page .receipt code {
  color: var(--danger);
  font-size: var(--step--1);
}

@media (max-width: 860px) {
  .legacy-tool-page .shell,
  .legacy-tool-page .problem,
  .legacy-tool-page .button-row,
  .legacy-tool-page .signer-grid {
    grid-template-columns: 1fr;
  }

  .legacy-tool-page h1 {
    font-size: 2.625rem;
  }

  .legacy-tool-page .dek {
    max-width: 100%;
    font-size: var(--step-0);
  }
}

@media (min-width: 861px) and (max-width: 1120px) {
  .legacy-tool-page .shell,
  .legacy-tool-page .signer-grid {
    grid-template-columns: 1fr;
  }
}