:root {
  --openscad-panel-bg: rgba(255, 255, 255, 0.9);
  --openscad-panel-border: var(--slate-200);
  --openscad-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.openscad-page {
  height: 100vh;
  overflow: hidden;
}

.openscad-shell {
  height: calc(100vh - 72px);
  display: grid;
  grid-template-rows: 1fr auto;
}

@media (max-width: 768px) {
  .openscad-shell {
    height: calc(100vh - 64px);
  }
}

.openscad-main {
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1rem;
  background: linear-gradient(180deg, var(--slate-50), #fff);
  overflow: hidden;
}

@media (max-width: 1100px) {
  .openscad-main {
    grid-template-columns: 1fr;
  }
}

.openscad-pane {
  min-height: 0;
  background: white;
  border: 1px solid var(--openscad-panel-border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pane-header {
  padding: 1rem 1rem 0.75rem;
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.pane-title h1,
.pane-title h2 {
  font-family: 'Cinzel Decorative', serif;
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 1.25rem;
}

.pane-title h2 {
  font-size: 1.125rem;
}

.pane-subtitle {
  color: var(--slate-600);
  font-size: 0.875rem;
  line-height: 1.3;
  margin-top: 0.25rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

.pane-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn {
  appearance: none;
  border: 1px solid var(--slate-300);
  background: var(--slate-900);
  color: white;
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: #0b1222;
}

.btn:active {
  transform: translateY(0);
}

.btn.secondary {
  background: var(--amber);
  border-color: var(--amber-dark);
}

.btn.secondary:hover {
  background: var(--amber-dark);
}

.btn.ghost {
  background: transparent;
  color: var(--slate-800);
  border-color: var(--slate-300);
}

.btn.ghost:hover {
  background: var(--slate-100);
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--slate-700);
  font-family: 'Helvetica Neue', Arial, sans-serif;
  user-select: none;
}

.toggle input {
  width: 1rem;
  height: 1rem;
}

.scad-editor {
  flex: 1;
  min-height: 0;
  width: 100%;
  border: none;
  resize: none;
  padding: 1rem;
  font-family: var(--openscad-mono);
  font-size: 13px;
  line-height: 1.45;
  color: var(--slate-900);
  background: linear-gradient(180deg, #ffffff, var(--slate-50));
  outline: none;
}

.status-bar {
  border-top: 1px solid var(--slate-200);
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--slate-50);
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

.status-left,
.status-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--slate-200);
  background: white;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--slate-700);
}

.viewer {
  flex: 1;
  min-height: 0;
  position: relative;
  background: radial-gradient(circle at 30% 10%, rgba(245, 158, 11, 0.18), transparent 45%),
    radial-gradient(circle at 70% 70%, rgba(99, 102, 241, 0.14), transparent 50%),
    #0b1020;
}

.viewer canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.viewer-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 2rem;
  color: rgba(255, 255, 255, 0.85);
  pointer-events: none;
}

.viewer-title {
  font-size: 1.25rem;
  font-weight: 700;
  font-family: 'Cinzel Decorative', serif;
  margin-bottom: 0.25rem;
}

.viewer-subtitle {
  font-size: 0.95rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  color: rgba(255, 255, 255, 0.75);
}

.log {
  border-top: 1px solid var(--slate-200);
  background: #0b1020;
  color: rgba(255, 255, 255, 0.85);
  padding: 0.75rem 1rem;
  font-family: var(--openscad-mono);
  font-size: 12px;
  line-height: 1.4;
  height: 6.5rem;
  overflow: auto;
}

/* Chat dock */
.chat-dock {
  border-top: 1px solid var(--slate-200);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 300px;
  min-height: 260px;
  max-height: 42vh;
}

.chat-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.chat-title h3 {
  font-family: 'Cinzel Decorative', serif;
  font-size: 1.1rem;
}

.chat-title p {
  color: var(--slate-600);
  font-size: 0.875rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

.chat-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.chat-messages {
  overflow: auto;
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chat-bubble {
  max-width: min(760px, 100%);
  border: 1px solid var(--slate-200);
  border-radius: 12px;
  padding: 0.75rem 0.75rem;
  background: white;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.chat-bubble.user {
  align-self: flex-end;
  border-color: rgba(99, 102, 241, 0.35);
}

.chat-bubble.assistant {
  align-self: flex-start;
  border-color: rgba(245, 158, 11, 0.35);
}

.chat-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.25rem;
}

.chat-role {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--slate-600);
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-weight: 700;
}

.chat-content {
  white-space: pre-wrap;
  font-size: 0.95rem;
  line-height: 1.5;
}

.chat-tools {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.chat-composer {
  border-top: 1px solid var(--slate-200);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: end;
  gap: 0.75rem;
}

.chat-input {
  flex: 1;
  min-height: 0;
  border: 1px solid var(--slate-300);
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  font-family: var(--openscad-mono);
  font-size: 13px;
  resize: none;
}

.chat-buttons {
  display: flex;
  gap: 0.5rem;
}

.chat-settings {
  border-top: 1px solid var(--slate-200);
  padding: 0.75rem 1rem;
  background: var(--slate-50);
}

.chat-settings-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.75rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

.chat-settings-row label {
  font-size: 0.875rem;
  color: var(--slate-700);
  font-weight: 600;
}

.chat-setting-input {
  border: 1px solid var(--slate-300);
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
  font-family: var(--openscad-mono);
  font-size: 12px;
}

.chat-settings-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.chat-settings-help {
  margin-top: 0.75rem;
  color: var(--slate-600);
  font-size: 0.825rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

@media (max-width: 768px) {
  .chat-settings-row {
    grid-template-columns: 1fr;
  }
}