.wrap-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  gap: 34px;
  align-items: end;
  padding-top: 74px;
  padding-bottom: 40px;
  background: linear-gradient(180deg, #ffffff 0%, #f5f6f7 100%);
}

.wrap-hero h1 {
  max-width: 780px;
  margin: 0 0 16px;
  font-size: clamp(42px, 6vw, 76px);
}

.wrap-hero p {
  max-width: 760px;
}

.wrap-status {
  display: grid;
  gap: 12px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
  color: var(--ink);
  font-weight: 900;
}

.progress-track {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #e6e8eb;
}

.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--red);
  transition: width 0.28s ease;
}

.wrap-tool {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 380px);
  gap: 28px;
  padding-top: 32px;
  background: var(--white);
}

.wrap-workspace,
.wrap-controls {
  display: grid;
  align-content: start;
  gap: 18px;
}

.upload-card,
.canvas-panel,
.control-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 34px rgba(22, 23, 24, 0.06);
}

.upload-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 22px;
}

.upload-card.is-dragging {
  border-color: rgba(215, 25, 32, 0.42);
  background: #fff8f8;
}

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

.upload-card-copy {
  display: grid;
  gap: 6px;
}

.upload-card-copy strong {
  color: var(--ink);
  font-size: 22px;
}

.upload-card-copy span {
  color: var(--muted);
  line-height: 1.6;
}

.canvas-panel {
  overflow: hidden;
}

.canvas-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.canvas-toolbar > div:first-child {
  display: grid;
  gap: 4px;
}

.canvas-toolbar strong {
  color: var(--ink);
  font-size: 18px;
}

.canvas-toolbar span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.toolbar-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
}

.toolbar-actions .button {
  min-height: 40px;
  padding: 0 14px;
  box-shadow: none;
}

.toolbar-actions .is-active {
  border-color: var(--red);
  color: var(--white);
  background: var(--red);
}

.canvas-stage {
  position: relative;
  display: grid;
  min-height: 520px;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(45deg, #f1f2f4 25%, transparent 25%),
    linear-gradient(-45deg, #f1f2f4 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #f1f2f4 75%),
    linear-gradient(-45deg, transparent 75%, #f1f2f4 75%),
    #ffffff;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  background-size: 20px 20px;
}

#wrapCanvas {
  display: block;
  max-width: 100%;
  max-height: min(72vh, 760px);
  cursor: crosshair;
}

.empty-preview {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 8px;
  padding: 28px;
  text-align: center;
  background: rgba(255, 255, 255, 0.86);
}

.empty-preview[hidden] {
  display: none;
}

.empty-preview strong {
  color: var(--ink);
  font-size: 28px;
}

.empty-preview span {
  color: var(--muted);
}

.control-panel {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.control-heading h2 {
  margin-bottom: 0;
  font-size: 28px;
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.swatch-button {
  display: grid;
  min-height: 112px;
  align-content: start;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  text-align: left;
  background: var(--white);
  cursor: pointer;
}

.swatch-button span,
.selected-color-card span {
  display: block;
  border: 1px solid rgba(17, 18, 20, 0.14);
  border-radius: 6px;
}

.swatch-button span {
  height: 34px;
}

.swatch-button strong {
  color: var(--ink);
  font-size: 15px;
}

.swatch-button small {
  color: var(--muted);
  font-size: 12px;
}

.swatch-button.is-selected {
  border-color: rgba(215, 25, 32, 0.55);
  box-shadow: 0 0 0 3px rgba(215, 25, 32, 0.1);
}

.selected-color-card {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 12px;
  border-radius: 8px;
  background: var(--soft-white);
}

.selected-color-card span {
  height: 52px;
}

.selected-color-card strong,
.selected-color-card p {
  margin: 0;
}

.selected-color-card p,
.panel-note {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.range-control {
  display: grid;
  gap: 10px;
}

.range-control input {
  accent-color: var(--red);
}

.simulator-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

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

.ai-panel {
  border-color: rgba(215, 25, 32, 0.18);
  background: linear-gradient(180deg, #ffffff 0%, #fff8f8 100%);
}

.ai-panel .button {
  width: 100%;
}

.ai-message {
  min-height: 52px;
  border: 1px solid rgba(215, 25, 32, 0.16);
  border-radius: 8px;
  padding: 12px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  line-height: 1.7;
}

@media (max-width: 980px) {
  .wrap-hero,
  .wrap-tool {
    grid-template-columns: 1fr;
  }

  .wrap-tool {
    padding-top: 26px;
  }

  .canvas-stage {
    min-height: 430px;
  }
}

@media (max-width: 640px) {
  .wrap-hero {
    padding-top: 56px;
  }

  .upload-card,
  .canvas-toolbar {
    grid-template-columns: 1fr;
  }

  .upload-card {
    display: grid;
  }

  .canvas-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .toolbar-actions,
  .simulator-actions {
    grid-template-columns: 1fr;
  }

  .toolbar-actions .button,
  .upload-card .button {
    width: 100%;
  }

  .canvas-stage {
    min-height: 320px;
  }

  .swatch-grid {
    grid-template-columns: 1fr;
  }
}