/* ═══════════════════════════════════════════════════════════
   Unified Code Workspace component
   Scope: everything under .workspace
   ═══════════════════════════════════════════════════════════ */
.workspace {
  --ws-bg: #0b1120;
  --ws-panel: #0f172a;
  --ws-panel-2: #172033;
  --ws-border: #1e293b;
  --ws-border-soft: #334155;
  --ws-text: #e2e8f0;
  --ws-text-muted: #94a3b8;
  --ws-text-dim: #64748b;
  --ws-accent: #38bdf8;
  --ws-accent-violet: #a78bfa;
  --ws-code-bg: #090e17;

  display: flex;
  flex-direction: column;
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  background: var(--ws-panel);
  border: 1px solid var(--ws-border-soft);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--ws-text);
  min-height: 520px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px -8px rgba(0, 0, 0, 0.35);
}

/* Tabs */
.workspace-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 10px 12px 0;
  background: var(--ws-bg);
  border-bottom: 1px solid var(--ws-border-soft);
}
.workspace-tab {
  appearance: none;
  background: transparent;
  border: none;
  border-radius: 8px 8px 0 0;
  padding: 10px 18px;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ws-text-muted);
  cursor: pointer;
  transition: background 0.18s, color 0.18s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: relative;
  top: 1px;
  border-bottom: 2px solid transparent;
}
.workspace-tab:hover { color: var(--ws-text); background: rgba(148, 163, 184, 0.06); }
.workspace-tab.active {
  color: var(--ws-text);
  background: var(--ws-panel);
  border-bottom-color: var(--ws-accent);
}
.workspace-tab svg { width: 14px; height: 14px; flex-shrink: 0; }

.workspace-tab-spacer { flex: 1; }
.workspace-tab-meta {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.72rem;
  color: var(--ws-text-dim);
  padding-right: 8px;
}

/* Panes */
.workspace-pane { display: none; flex: 1; min-height: 0; }
.workspace-pane.active { display: flex; }

/* Preview */
.workspace-preview {
  background: #0a0f1a;
  position: relative;
}
.workspace-preview iframe {
  width: 100%;
  height: 100%;
  min-height: 520px;
  border: 0;
  background: #fff;
  display: block;
}

/* Code pane: 2-col */
.workspace-code {
  flex-direction: row;
  background: var(--ws-panel);
}

/* File tree */
.workspace-tree {
  flex: 0 0 240px;
  background: var(--ws-panel);
  border-right: 1px solid var(--ws-border-soft);
  overflow-y: auto;
  padding: 10px 0;
  min-height: 520px;
  max-height: 720px;
  font-size: 0.83rem;
}
.workspace-tree::-webkit-scrollbar { width: 6px; }
.workspace-tree::-webkit-scrollbar-thumb { background: var(--ws-border-soft); border-radius: 6px; }

.workspace-tree-title {
  padding: 6px 16px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ws-text-dim);
  border-bottom: 1px solid var(--ws-border);
  margin-bottom: 8px;
}

.workspace-tree ul { list-style: none; margin: 0; padding: 0; }
.workspace-tree li { user-select: none; }

.workspace-tree-folder,
.workspace-tree-file {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px 5px 0;
  cursor: pointer;
  color: var(--ws-text-muted);
  transition: background 0.14s, color 0.14s;
  border-left: 2px solid transparent;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.82rem;
  line-height: 1.2;
}
.workspace-tree-folder:hover,
.workspace-tree-file:hover { color: var(--ws-text); background: rgba(148, 163, 184, 0.05); }
.workspace-tree-file.active {
  color: var(--ws-text);
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.12), transparent);
  border-left-color: var(--ws-accent);
}

.workspace-tree-indent { display: inline-block; }
.workspace-tree-caret {
  width: 14px;
  flex-shrink: 0;
  text-align: center;
  font-size: 0.65rem;
  color: var(--ws-text-dim);
  transition: transform 0.15s ease;
}
.workspace-tree-folder.collapsed .workspace-tree-caret { transform: rotate(-90deg); }
.workspace-tree-folder.collapsed + ul { display: none; }

.workspace-tree-icon { width: 14px; height: 14px; flex-shrink: 0; opacity: 0.85; }

/* Code view */
.workspace-view {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.workspace-view-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--ws-border);
  background: var(--ws-panel-2);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.78rem;
}
.workspace-view-path { color: var(--ws-text); font-weight: 500; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.workspace-view-lang {
  color: var(--ws-text-dim);
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.1);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.workspace-copy {
  appearance: none;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--ws-accent);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.18s;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.workspace-copy:hover { background: rgba(56, 189, 248, 0.15); border-color: var(--ws-accent); }
.workspace-copy.copied { color: #86efac; border-color: rgba(134, 239, 172, 0.4); background: rgba(134, 239, 172, 0.08); }

.workspace-code-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--ws-code-bg);
}
.workspace-code-body::-webkit-scrollbar { width: 10px; height: 10px; }
.workspace-code-body::-webkit-scrollbar-thumb { background: var(--ws-border-soft); border-radius: 6px; }

.workspace-code-body pre {
  margin: 0;
  padding: 20px 22px;
  background: transparent;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.84rem;
  line-height: 1.65;
  min-height: 100%;
  box-sizing: border-box;
}
.workspace-code-body code {
  font-family: inherit;
  background: transparent;
  padding: 0;
  border-radius: 0;
  white-space: pre;
  display: block;
}

/* Binary / empty placeholder */
.workspace-placeholder {
  flex: 1;
  display: grid;
  place-items: center;
  color: var(--ws-text-dim);
  font-size: 0.9rem;
  padding: 40px;
  text-align: center;
}

/* Loading state */
.workspace-loading {
  display: grid;
  place-items: center;
  padding: 40px;
  color: var(--ws-text-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 760px) {
  .workspace-code { flex-direction: column; }
  .workspace-tree {
    flex: 0 0 auto;
    max-height: 200px;
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--ws-border-soft);
  }
}

@media (prefers-reduced-motion: reduce) {
  .workspace *, .workspace *::before, .workspace *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}