.tool-main {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 52px 0 20px;
}

.tool-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 0.9rem;
}

.tool-breadcrumb a:hover {
  color: var(--blue);
}

.tool-breadcrumb span[aria-hidden="true"] {
  opacity: 0.45;
}

.tool-page-hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 34px;
}

.tool-page-hero h1 {
  margin: 10px 0 14px;
  font-size: clamp(2.4rem, 6vw, 4.7rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

.tool-page-hero p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 1.02rem;
}

.local-processing-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 10px 13px;
  border: 1px solid rgba(56, 217, 150, 0.35);
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 800;
  white-space: nowrap;
}

.tool-workspace {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 18px;
  align-items: start;
}

.tool-panel {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
}

.tool-panel.accent {
  border-color: rgba(155, 104, 255, 0.32);
}

.tool-panel h2 {
  margin: 0 0 8px;
  font-size: 1.3rem;
}

.panel-description {
  margin: 0 0 20px;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.93rem;
}

.drop-zone {
  min-height: 210px;
  display: grid;
  place-items: center;
  padding: 26px;
  border: 1px dashed #3b4d68;
  border-radius: 16px;
  background:
    linear-gradient(145deg, rgba(51, 148, 255, 0.055), rgba(155, 104, 255, 0.045));
  text-align: center;
  cursor: pointer;
  transition: 0.2s ease;
}

.drop-zone:hover,
.drop-zone.is-dragging,
.drop-zone:focus-within {
  border-color: var(--blue);
  background:
    linear-gradient(145deg, rgba(51, 148, 255, 0.11), rgba(155, 104, 255, 0.07));
}

.drop-zone input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.drop-icon {
  display: block;
  margin-bottom: 10px;
  font-size: 2.3rem;
}

.drop-zone strong {
  display: block;
  margin-bottom: 7px;
  font-size: 1.03rem;
}

.drop-zone small {
  display: block;
  color: var(--muted);
  line-height: 1.5;
}

.file-summary {
  margin-top: 16px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-soft);
}

.file-summary[hidden] {
  display: none;
}

.file-summary strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.84rem;
}

.preview-shell {
  display: grid;
  gap: 12px;
}

.preview-frame {
  min-height: 280px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 15px;
  background:
    linear-gradient(45deg, rgba(255,255,255,.035) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255,255,255,.035) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255,255,255,.035) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255,255,255,.035) 75%),
    var(--bg-soft);
  background-size: 22px 22px;
  background-position: 0 0, 0 11px, 11px -11px, -11px 0;
}

.preview-frame img {
  display: block;
  max-width: 100%;
  max-height: 500px;
  object-fit: contain;
}

.preview-placeholder {
  max-width: 320px;
  padding: 24px;
  color: var(--muted);
  text-align: center;
  line-height: 1.6;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.control-group {
  min-width: 0;
}

.control-group.full {
  grid-column: 1 / -1;
}

.control-group label,
.control-label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.control-group input[type="number"],
.control-group select,
.control-group textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--bg-soft);
  color: var(--text);
  padding: 0 12px;
  outline: none;
}

.control-group textarea {
  min-height: 105px;
  padding: 12px;
  resize: vertical;
  line-height: 1.5;
}

.control-group input:focus,
.control-group select:focus,
.control-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-soft);
}

.range-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-row input[type="range"] {
  flex: 1;
  accent-color: var(--purple);
}

.range-value {
  min-width: 52px;
  text-align: right;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--bg-soft);
  color: var(--muted);
  cursor: pointer;
}

.check-row input {
  width: 18px;
  height: 18px;
  accent-color: var(--purple);
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.tool-actions .button {
  min-width: 150px;
}

.button.success {
  background: var(--green);
  color: #04150e;
}

.status-box {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--bg-soft);
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.9rem;
}

.status-box.success {
  border-color: rgba(56, 217, 150, 0.35);
  background: var(--green-soft);
  color: var(--text);
}

.status-box.error {
  border-color: rgba(255, 100, 100, 0.4);
  background: rgba(255, 100, 100, 0.08);
  color: #ffb7b7;
}

.result-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.result-stat {
  min-width: 0;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--bg-soft);
}

.result-stat span {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.76rem;
}

.result-stat strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.92rem;
}

.tool-note {
  margin-top: 16px;
  padding: 14px 16px;
  border-left: 3px solid var(--blue);
  background: var(--blue-soft);
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.9rem;
}

.tool-note strong {
  color: var(--text);
}

.tool-switcher {
  margin-top: 28px;
}

.tool-switcher h2 {
  margin-bottom: 14px;
  font-size: 1.15rem;
}

.tool-switcher-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.tool-switcher-link {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  color: var(--muted);
  line-height: 1.4;
  transition: 0.2s ease;
}

.tool-switcher-link:hover,
.tool-switcher-link.active {
  border-color: var(--purple);
  background: var(--purple-soft);
  color: var(--text);
}

.gradient-preview {
  min-height: 360px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(135deg, #3394ff 0%, #9b68ff 100%);
}

.color-control {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 10px;
  align-items: center;
}

.color-control input[type="color"] {
  width: 52px;
  height: 46px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-soft);
  cursor: pointer;
}

.color-hex {
  min-width: 0;
  min-height: 46px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--bg-soft);
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.compact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.compact-actions .button {
  min-width: 0;
}

@media (max-width: 900px) {
  .tool-workspace {
    grid-template-columns: 1fr;
  }

  .tool-page-hero {
    flex-direction: column;
  }

  .tool-switcher-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .tool-main {
    width: min(100% - 28px, 1180px);
    padding-top: 34px;
  }

  .controls-grid,
  .result-stats,
  .tool-switcher-grid {
    grid-template-columns: 1fr;
  }

  .control-group.full {
    grid-column: auto;
  }

  .tool-actions .button {
    width: 100%;
  }

  .local-processing-badge {
    white-space: normal;
  }

  .preview-frame,
  .gradient-preview {
    min-height: 240px;
  }
}