:root {
  --color-paper: #f4f1e8;
  --color-paper-deep: #ece7d9;
  --color-ink: #1c1b18;
  --color-ink-soft: #6b665b;
  --color-line: #d9d3c3;
  --color-accent: #d8442a;
  --color-accent-deep: #b0331d;
  --color-mark: #e0a92e;
  --font-display: Inter, Noto Sans TC, sans-serif;
  --font-body: Inter, Noto Sans TC, sans-serif;
  --font-mono: Inter, Noto Sans TC, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

.tool-intro {
  max-width: 64ch;
  margin-block: 24px 40px;
  color: #6b665b;
}

.dropzone {
  cursor: pointer;
}

.editor-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px;
  background: #ece7d9;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  position: sticky;
  top: 24px;
}

.control-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-label {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #6b665b;
}

.file-summary {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.file-name {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #1c1b18;
  word-break: break-all;
}

.file-dim {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #6b665b;
}

.spec-checklist {
  display: flex;
  flex-direction: column;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.spec-item {
  display: flex;
  gap: 8px;
  align-items: baseline;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  line-height: 1.5;
}

.spec-item-icon {
  flex-shrink: 0;
  width: 1.4em;
  text-align: center;
}

.spec-item-text {
  color: #6b665b;
}

.spec-item.is-pass .spec-item-icon {
  color: #d8442a;
}

.spec-item.is-warn .spec-item-icon {
  color: #e0a92e;
}

.spec-item.is-fail .spec-item-icon {
  color: #b0331d;
}

.spec-item.is-fail .spec-item-text {
  color: #1c1b18;
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  padding: 4px 16px;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  color: #6b665b;
  background: #f4f1e8;
  cursor: pointer;
  transition: color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), border-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), background-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.chip:hover {
  color: #1c1b18;
  border-color: #1c1b18;
}
.chip.is-active {
  color: #f4f1e8;
  background: #d8442a;
  border-color: #d8442a;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #6b665b;
  cursor: pointer;
}

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

.copy-hint {
  min-height: 1.4em;
  margin: 0;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #d8442a;
}

.stage-wrap {
  display: flex;
  flex-direction: column;
  gap: 40px;
  align-items: center;
}

.rm-stage {
  position: relative;
  display: inline-block;
  line-height: 0;
  max-width: 100%;
  background-color: #ece7d9;
  background-image: linear-gradient(45deg, #d9d3c3 25%, transparent 25%), linear-gradient(-45deg, #d9d3c3 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #d9d3c3 75%), linear-gradient(-45deg, transparent 75%, #d9d3c3 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  border: 1.5px solid #1c1b18;
  border-radius: 2px;
  overflow: hidden;
}

.rm-image {
  display: block;
  width: min(720px, 100%);
  height: auto;
}

.rm-grid-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.rm-grid-overlay[hidden] {
  display: none;
}

.rm-grid-cell {
  position: absolute;
  box-sizing: border-box;
  display: grid;
  place-items: center;
  border: 1.5px dashed #d8442a;
  background: color-mix(in srgb, #d8442a 10%, transparent);
}

.rm-grid-cell-index {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: #f4f1e8;
  background: color-mix(in srgb, #d8442a 85%, transparent);
  padding: 2px 8px;
  border-radius: 2px;
}

.chat-mock {
  width: min(360px, 100%);
  display: flex;
  flex-direction: column;
  background: #f4f1e8;
  border: 1.5px solid #1c1b18;
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 6px 6px 0 rgba(28, 27, 24, 0.12);
}

.chat-mock-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 16px;
  background: #ece7d9;
  border-bottom: 1px solid #d9d3c3;
}

.chat-mock-avatar {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 10px;
  letter-spacing: 0.02em;
  color: #f4f1e8;
  background: #6b665b;
  border-radius: 50%;
}

.chat-mock-name {
  flex: 1;
  font-size: 1rem;
  color: #1c1b18;
}

.chat-mock-icons {
  color: #6b665b;
  font-family: "Inter", "Noto Sans TC", sans-serif;
}

.chat-mock-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 16px;
}

.chat-bubble {
  max-width: 80%;
  padding: 8px 16px;
  font-size: 1rem;
  color: #1c1b18;
  background: #ece7d9;
  border-radius: 2px;
}

.chat-mock-menu {
  position: relative;
  overflow: hidden;
  border-top: 1px solid #d9d3c3;
  background: #ece7d9;
  transition: height 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.chat-menu-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.chat-mock-toggle {
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  width: 40px;
  height: 20px;
  display: grid;
  place-items: center;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #1c1b18;
  background: #f4f1e8;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  cursor: pointer;
  transition: color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), border-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.chat-mock-toggle:hover {
  color: #d8442a;
  border-color: #d8442a;
}

.chat-mock-collapsed-label {
  display: none;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #6b665b;
}

.chat-mock-menu.is-collapsed {
  display: flex;
  align-items: center;
  justify-content: center;
}
.chat-mock-menu.is-collapsed .chat-menu-img {
  display: none;
}
.chat-mock-menu.is-collapsed .chat-mock-toggle {
  position: static;
  transform: none;
  margin-right: 8px;
}
.chat-mock-menu.is-collapsed .chat-mock-collapsed-label {
  display: inline;
}

@media (max-width: 860px) {
  .editor-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }
  .controls {
    position: static;
    top: auto;
  }
}