.rc-stamp-builder {
  --stamp-ink: var(--ink);
  --stamp-muted: var(--muted);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.rc-stamp-builder__form {
  padding: clamp(17px, 3vw, 25px);
}

.rc-stamp-builder__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.rc-stamp-builder__eyebrow {
  margin: 0 0 4px;
  color: var(--purple);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.15px;
  text-transform: uppercase;
}

.rc-stamp-builder__header h2 {
  margin: 0;
  color: var(--stamp-ink);
  font: 800 clamp(20px, 3vw, 25px)/1.2 var(--font-display);
  letter-spacing: -.65px;
}

.rc-stamp-builder__lede {
  margin: 5px 0 0;
  color: var(--stamp-muted);
  font-size: 13px;
}

.rc-stamp-builder__seal {
  display: grid;
  place-items: center;
  flex: 0 0 45px;
  width: 45px;
  height: 45px;
  border: 1px solid #e4def0;
  border-radius: 50%;
  background: var(--purple-soft);
  color: var(--purple);
  font: 800 13px var(--font-display);
  letter-spacing: -.4px;
}

.rc-stamp-builder__error {
  margin: 16px 0 0;
  padding: 11px 13px;
  border: 1px solid #f3d0cf;
  border-radius: 8px;
  background: #fff0ef;
  color: #943b40;
  font-size: 13px;
}

.rc-stamp-builder__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
  gap: clamp(20px, 4vw, 42px);
  padding: 22px 0;
}

.rc-stamp-builder__controls {
  display: grid;
  align-content: start;
  gap: 15px;
  min-width: 0;
}

.rc-stamp-builder__field {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.rc-stamp-builder__field > label,
.rc-stamp-builder__fieldset legend {
  color: var(--stamp-ink);
  font-size: 12px;
  font-weight: 700;
}

.rc-stamp-builder__field select,
.rc-stamp-builder__field input[type="text"],
.rc-stamp-builder__field input[type="number"] {
  width: 100%;
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid #dcd8e6;
  border-radius: 8px;
  background: var(--surface);
  color: var(--stamp-ink);
}

.rc-stamp-builder__field select:focus-visible,
.rc-stamp-builder__field input:focus-visible {
  outline: 3px solid rgba(255, 140, 66, .65);
  outline-offset: 2px;
}

.rc-stamp-builder__color-row,
.rc-stamp-builder__tuning {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.rc-stamp-builder__color-control {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 5px 9px;
  border: 1px solid #dcd8e6;
  border-radius: 8px;
  background: var(--surface);
}

.rc-stamp-builder__color-control input[type="color"] {
  width: 32px;
  height: 30px;
  padding: 2px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  cursor: pointer;
}

.rc-stamp-builder__color-control output {
  color: var(--stamp-muted);
  font: 600 11px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.rc-stamp-builder__fieldset {
  min-width: 0;
  margin: 1px 0 0;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 9px;
}

.rc-stamp-builder__fieldset legend {
  padding: 0 5px;
}

.rc-stamp-builder__shape-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.rc-stamp-builder__shape-option {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 39px;
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--stamp-ink);
  font-size: 12px;
  cursor: pointer;
}

.rc-stamp-builder__shape-option:has(input:checked) {
  border-color: var(--purple);
  background: var(--purple-soft);
  color: var(--purple);
}

.rc-stamp-builder__shape-option input {
  accent-color: var(--purple);
}

.rc-stamp-builder__lines {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
}

.rc-stamp-builder__line-field:first-child {
  grid-column: 1 / -1;
}

.rc-stamp-builder__hint {
  margin: 9px 0 0;
  color: var(--stamp-muted);
  font-size: 11px;
}

.rc-stamp-builder__tuning .rc-stamp-builder__field > label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 7px;
}

.rc-stamp-builder__tuning output {
  color: var(--purple);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.rc-stamp-builder__tuning input[type="range"] {
  width: 100%;
  min-height: 24px;
  accent-color: var(--purple);
}

.rc-stamp-builder__preview-panel {
  align-self: start;
  min-width: 0;
  padding: 16px;
  border: 1px solid #e8e4ef;
  border-radius: 12px;
  background: #f8f7fa;
}

.rc-stamp-builder__preview-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.rc-stamp-builder__preview-head strong,
.rc-stamp-builder__preview-head span {
  display: block;
}

.rc-stamp-builder__preview-head strong {
  color: var(--stamp-ink);
  font: 700 14px var(--font-display);
}

.rc-stamp-builder__preview-head div > span {
  margin-top: 2px;
  color: var(--stamp-muted);
  font-size: 11px;
}

.rc-stamp-builder__live-dot {
  flex: none;
  padding: 3px 7px;
  border: 1px solid #d7eadf;
  border-radius: 20px;
  background: #edf8f2;
  color: #27634d;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .7px;
}

.rc-stamp-builder__preview-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  border-radius: 9px;
}

.rc-stamp-builder__paper {
  fill: #fffefa;
  stroke: #dedbe4;
}

.rc-stamp-builder__paper-rule {
  fill: none;
  stroke: #eeeaf1;
  stroke-width: 1;
}

.rc-stamp-builder__preview-caption {
  fill: #8b8792;
  font: 700 8px var(--font-body);
  letter-spacing: 1px;
}

.rc-stamp-builder__position-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 11px;
  color: var(--stamp-muted);
  font-size: 11px;
}

.rc-stamp-builder__position-note > span:first-child {
  color: var(--orange);
  font-size: 16px;
  line-height: 1;
}

.rc-stamp-builder__position-note strong {
  color: var(--stamp-ink);
}

.rc-stamp-builder__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
}

.rc-stamp-builder__actions p {
  margin: 0;
  color: var(--stamp-muted);
  font-size: 11px;
}

.rc-stamp-builder__actions .btn {
  flex: none;
}

@media (max-width: 760px) {
  .rc-stamp-builder__layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 19px;
  }

  .rc-stamp-builder__preview-panel {
    width: 100%;
  }
}

@media (max-width: 420px) {
  .rc-stamp-builder__form {
    padding: 15px;
  }

  .rc-stamp-builder__lines,
  .rc-stamp-builder__color-row,
  .rc-stamp-builder__tuning {
    grid-template-columns: minmax(0, 1fr);
  }

  .rc-stamp-builder__line-field:first-child {
    grid-column: auto;
  }

  .rc-stamp-builder__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .rc-stamp-builder__actions .btn {
    width: 100%;
  }
}