.signature-workspace {
  max-width: 1380px;
  display: grid;
  grid-template-columns: minmax(460px, 0.92fr) minmax(520px, 1.08fr);
  gap: 28px;
  margin: 0 auto;
  padding: clamp(36px, 5vw, 64px) clamp(22px, 4vw, 56px) 80px;
}
.signature-controls,
.signature-stage {
  min-width: 0;
}
.control-heading h2,
.stage-heading h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(30px, 3.5vw, 44px);
}
.brand-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin-top: 21px;
}
.brand-option {
  min-height: 86px;
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--rule);
  border-left: 4px solid var(--brand-accent, var(--rust));
  border-radius: 3px;
  background: var(--white);
  color: var(--navy);
  text-align: left;
  transition: transform 160ms var(--ease), box-shadow 160ms var(--ease);
}
.brand-option:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(18, 50, 96, 0.12);
}
.brand-option.active {
  border-color: var(--brand-accent, var(--rust));
  box-shadow: inset 0 0 0 1px var(--brand-accent, var(--rust));
  background: #fffdf8;
}
.brand-option img {
  width: 66px;
  height: 56px;
  object-fit: contain;
}
.brand-option span {
  overflow: hidden;
  font: 700 13px/1.25 var(--font-sans);
  text-overflow: ellipsis;
}
.person-heading {
  margin-top: 42px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
}
.field {
  display: grid;
  gap: 7px;
}
.field-wide { margin-top: 22px; }
.field span {
  color: var(--ink-3);
  font: 600 10px var(--font-mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.field small {
  color: #918b83;
  font-size: 8px;
}
.field input,
.field select {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--white);
  color: var(--ink);
}
.person-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}
.profile-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 17px;
}
.secondary-button {
  min-height: 42px;
  padding: 10px 13px;
  border: 0;
  border-radius: 3px;
  background: var(--navy);
  color: var(--white);
  font-weight: 800;
}
.secondary-button:hover { background: var(--rust); }
.text-button {
  padding: 8px 0;
  border: 0;
  border-bottom: 1px solid var(--rust);
  background: transparent;
  color: var(--rust);
  font-weight: 700;
}
.device-note {
  margin: 13px 0 0;
  color: var(--ink-3);
  font: 400 12px/1.5 var(--font-body);
}
.signature-stage {
  position: sticky;
  top: 20px;
  align-self: start;
  padding: clamp(24px, 4vw, 40px);
  background: var(--paper-2);
  border: 1px solid var(--rule);
}
.stage-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}
.stage-heading > span {
  padding: 7px 9px;
  background: var(--white);
  border: 1px solid var(--rule);
  color: var(--navy);
  font: 700 10px var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.email-canvas {
  overflow: hidden;
  background: #fff;
  border: 1px solid #cfcfcf;
  border-radius: 9px;
  box-shadow: 0 16px 40px rgba(18, 50, 96, 0.13);
}
.email-toolbar {
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  background: #282828;
  color: #eee;
}
.email-toolbar i {
  width: 10px;
  height: 10px;
  display: block;
  border-radius: 50%;
  background: #ff5f57;
}
.email-toolbar i:nth-child(2) { background: #febc2e; }
.email-toolbar i:nth-child(3) { background: #28c840; }
.email-toolbar span {
  margin-left: 7px;
  font: 600 11px var(--font-sans);
}
.signature-preview {
  min-height: 520px;
  padding: 52px 28px;
  overflow-x: auto;
  background: white;
}
.copy-signature {
  width: 100%;
  min-height: 52px;
  margin-top: 18px;
  border: 0;
  border-radius: 3px;
  background: var(--rust);
  color: var(--white);
  font: 800 15px var(--font-sans);
  box-shadow: 0 6px 16px rgba(194, 76, 50, 0.22);
}
.copy-signature:hover { background: var(--navy); }
.copy-signature.copied { background: var(--green); }
.copy-status {
  margin: 11px 0 0;
  color: var(--ink-3);
  font: 500 11px/1.45 var(--font-sans);
  text-align: center;
}
.copy-status.success { color: var(--green); font-weight: 800; }
.install-note {
  margin-top: 16px;
  border-top: 1px solid var(--rule);
}
.install-note summary {
  padding: 15px 0 0;
  color: var(--navy);
  font: 700 11px var(--font-sans);
  cursor: pointer;
}
.install-note p {
  margin: 10px 0 0;
  color: var(--ink-3);
  font: 400 13px/1.55 var(--font-body);
}

@media (max-width: 1080px) {
  .signature-workspace { grid-template-columns: 1fr; }
  .signature-stage { position: static; }
}
@media (max-width: 620px) {
  .signature-workspace { padding-left: 16px; padding-right: 16px; }
  .brand-picker,
  .person-grid { grid-template-columns: 1fr; }
  .brand-option { grid-template-columns: 82px 1fr; }
  .signature-stage { padding: 18px 12px; }
  .signature-preview { min-height: 460px; padding: 32px 14px; }
  .stage-heading { align-items: flex-start; flex-direction: column; }
}