/* components.css - Shared components for Binary Backtrace */
/* Requires: base.css */

/* === Utilities === */

.u-flex-col-fill { display: flex; flex: 1; flex-direction: column; min-height: 0; overflow: hidden; }
.u-flex-row { display: flex; align-items: center; gap: 6px; min-width: 0; }
.u-icon-muted { width: 16px; height: 16px; flex-shrink: 0; color: var(--text-muted); }
.u-truncate { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-secondary); }
.u-util-3 { width: 16px; height: 16px; flex-shrink: 0; color: var(--text-muted); transition: transform 0.15s; }
.u-collapse { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.15s; }
.u-branch-indent { margin-left: 13px; padding-left: 14px; border-left: 1px solid color-mix(in oklch, var(--border-subtle) 50%, transparent); }

/* === Reset === */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: var(--font-size);
  background: var(--bg-base);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--text-secondary); text-decoration: none; transition: color var(--dur); }
a:hover { color: var(--text-primary); }

/* === Shared Patterns === */

/* Uppercase label text preset */
button, .badge, th,
.sort-hdr, .tab, .panel-header {
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Icon-style buttons: no border, transparent bg, centered */
.header-btn, .tree-action, .collapse-btn {
  display: flex;
  align-items: center;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 4px;
  transition: background var(--dur), color var(--dur);
}

.header-btn, .tree-action, .collapse-btn {
  justify-content: center;
  padding: 0;
}

/* Hover: background highlight (grouped) */
.tree-row:hover, .dropdown-item:hover, .virtual-item:hover,
.dl:hover, tr:hover, .hex-byte:hover, .ascii-char:hover,
.tabs-pill .tab:hover, .header-btn:hover, .tree-action:hover,
.collapse-btn:hover {
  background: var(--bg-hover);
}

/* Scrollbar styling */
.panel-content::-webkit-scrollbar, .hex-view::-webkit-scrollbar,
.command-palette-results::-webkit-scrollbar { width: 8px; height: 8px; }

.panel-content::-webkit-scrollbar-track, .hex-view::-webkit-scrollbar-track,
.command-palette-results::-webkit-scrollbar-track { background: transparent; }

.panel-content::-webkit-scrollbar-thumb, .hex-view::-webkit-scrollbar-thumb,
.command-palette-results::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: 4px;
}

.panel-content::-webkit-scrollbar, .hex-view::-webkit-scrollbar { width: 10px; height: 10px; }
.panel-content::-webkit-scrollbar-thumb, .hex-view::-webkit-scrollbar-thumb {
  border: 2px solid var(--bg-base);
  border-radius: 5px;
}

.panel-content::-webkit-scrollbar-thumb:hover,
.hex-view::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

.panel-content::-webkit-scrollbar-corner,
.hex-view::-webkit-scrollbar-corner { background: transparent; }

/* === Layout === */

body.tool-layout {
  height: 100dvh;
  overflow: hidden;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

body.tool-layout:has(.sub-nav) {
  grid-template-rows: auto auto 1fr auto;
}

/* === Sub Nav === */

.sub-nav {
  display: flex;
  align-items: stretch;
  justify-content: center;
  height: 40px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0 16px;
  gap: 48px;
}

.sub-nav:empty { display: none; }

.sub-nav-tab {
  padding: 0;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition: color var(--dur);
}

.sub-nav-tab:hover { color: var(--text-secondary); background: none; }
.sub-nav-tab[data-active] { color: var(--text-primary); border-bottom-color: var(--accent); }

.tool-main { display: flex; min-width: 0; min-height: 0; overflow: hidden; }

.tool-footer {
  border-top: 1px solid var(--border-subtle);
  height: 24px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  font-size: 11px;
  color: var(--text-muted);
  gap: 16px;
}

.content-container { max-width: 1200px; margin: 0 auto; padding: 2rem; }

/* === Panels === */

.panel {
  flex: var(--size, 1) 1 0;
  min-width: 0; min-height: 0;
  overflow: hidden;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
}

.panel-header {
  height: 40px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0 16px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.panel-header-title { flex: 1; }
.panel-header-actions { display: flex; align-items: center; gap: 4px; }

.panel-content {
  flex: 1;
  padding: 8px;
  position: relative;
}
.panel-content-flush { padding: 0; }

[data-traits~="scrollable"] > .panel-content {
  overflow: auto;
  overscroll-behavior: contain;
}

/* Collapsible */
.panel[data-collapsed] { flex-grow: 0; flex-basis: auto; }
.panel[data-collapsed] > .panel-content,
.panel[data-collapsed] > .tabs,
.panel[data-collapsed] > .sort-hdr { display: none; }

.collapse-btn { width: 20px; height: 20px; flex-shrink: 0; border-radius: var(--radius-sm); }
.collapse-btn:focus-visible { outline: 1px solid var(--accent); outline-offset: -1px; }
.collapse-btn svg {
  width: 14px; height: 14px;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
  transition: transform var(--dur);
}
.panel[data-collapsed] .collapse-btn svg { transform: rotate(-90deg); }

/* Virtual Scrolling */
.virtual-spacer { position: absolute; top: 0; left: 0; width: 1px; visibility: hidden; pointer-events: none; }
.virtual-items { position: relative; }
.virtual-item { position: absolute; left: 0; right: 0; }

/* === Resize Handles === */

.resize-handle, .resize-handle-h {
  flex: 0 0 1px;
  background: var(--border-subtle);
  user-select: none;
  touch-action: none;
  position: relative;
  transition: background var(--dur);
}

.resize-handle { cursor: col-resize; }
.resize-handle-h { cursor: row-resize; }

.resize-handle::after, .resize-handle-h::after { content: ""; position: absolute; }
.resize-handle::after { inset: 0 -4px; }
.resize-handle-h::after { inset: -4px 0; }

.resize-handle:hover, .resize-handle[data-state="dragging"],
.resize-handle-h:hover, .resize-handle-h[data-state="dragging"] {
  background: var(--text-muted);
  box-shadow: 0 0 6px color-mix(in oklch, var(--text-muted) 40%, transparent);
}

/* === Buttons === */

button {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font: inherit;
  font-size: 11px;
  cursor: pointer;
  transition: background var(--dur), color var(--dur), border-color var(--dur);
}

button:hover { color: var(--text-secondary); border-color: var(--border-default); }
button:disabled { opacity: 0.35; cursor: not-allowed; }

.header-btn { width: 28px; height: 28px; padding: 2px; }
.header-btn:hover { color: var(--text-secondary); }
.header-btn.copied, .header-btn.copied:hover { color: var(--success); }
.header-btn .icon { width: 18px; height: 18px; }

/* Ghost toolbar button: borderless, text+icon, bg on hover */
.btn-ghost {
  border: 0;
  background: transparent;
  padding: 5px 8px;
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-secondary); border-color: transparent; }

/* === Icons === */

.icon {
  display: block; width: 20px; height: 20px;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}

.icon-sm { width: 14px; height: 14px; }
.icon-xs { width: 12px; height: 12px; }

/* === Badges === */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 10px;
  border-radius: 4px;
  background: var(--bg-surface);
  color: var(--text-secondary);
}

.badge-accent { background: var(--accent-dim); color: var(--accent); }
.badge-blue { background: rgba(59, 130, 246, 0.12); color: #60a5fa; }
.badge-green { background: rgba(34, 197, 94, 0.12); color: #4ade80; }
.badge-red { background: rgba(239, 68, 68, 0.12); color: #f87171; }
.badge-purple { background: rgba(168, 85, 247, 0.12); color: #c084fc; }
.badge-amber { background: rgba(245, 158, 11, 0.12); color: #fbbf24; }
.badge-pink { background: rgba(236, 72, 153, 0.12); color: #f472b6; }
.badge-muted { background: rgba(161, 161, 170, 0.12); color: #a1a1aa; }

/* === Tabs === */

.tabs {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
  flex-shrink: 0;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
  padding: 0 12px;
  font: 500 9px/30px var(--font-sans);
  letter-spacing: 0.6px;
  color: var(--text-muted);
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: none;
  cursor: pointer;
  transition: color var(--dur), border-color var(--dur);
  white-space: nowrap;
}

.tab:hover { color: var(--text-secondary); background: none; }
.tab:focus-visible { outline: 1px solid var(--accent); outline-offset: -1px; }
.tab.active { color: var(--text-primary); border-bottom-color: var(--accent); background: none; }

.tab-pane { display: none; flex: 1; overflow: hidden; flex-direction: column; position: relative; }
.tab-pane.active { display: flex; }

/* Pill variant */
.tabs-pill { gap: 2px; border-bottom: none; }
.tabs-pill .tab { padding: 5px 10px; font: 500 9px/1 var(--font-sans); border-bottom: none; border-radius: var(--radius-sm); }
.tabs-pill .tab.active { color: var(--accent); background: var(--accent-dim); border-bottom-color: transparent; }

/* === Sort Header === */

.sort-hdr {
  display: grid;
  grid-template-columns: var(--cols);
  gap: 6px;
  padding: 0 10px;
  height: 24px;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  font: 600 9px/1 var(--font-sans);
  color: var(--text-muted);
  flex-shrink: 0;
  user-select: none;
}

.sort-hdr span {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 3px;
  transition: color var(--dur);
}
.sort-hdr span:hover { color: var(--text-secondary); }
.sort-hdr .sort-active { color: var(--accent); }

.sort-arrow { transition: transform var(--dur); }
.sort-arrow::after {
  content: "";
  display: inline-block;
  width: 0; height: 0;
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  border-top: 4px solid currentColor;
  margin-left: 2px;
}
.sort-arrow.asc::after { border-top: none; border-bottom: 4px solid currentColor; }

/* === Tree View === */

.tree { padding: 6px; font-size: 13px; user-select: none; scrollbar-gutter: stable; }
.tree-node { position: relative; }

.tree-row {
  cursor: pointer;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  height: 28px;
  padding: 0 6px;
  margin-bottom: 2px;
  border-radius: 4px;
}
.tree-row:hover { background: var(--bg-hover); }
.tree-row[data-selected] { background: var(--bg-surface); }

.tree-row-main { display: flex; align-items: center; gap: 6px; min-width: 0; }

.tree-chevron {
  width: 16px; height: 16px; flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.15s;
}
.tree-node[data-expanded] > .tree-row .tree-chevron { transform: rotate(90deg); }
.tree-node[data-type="file"] > .tree-row .tree-chevron { visibility: hidden; }

.tree-icon { width: 16px; height: 16px; flex-shrink: 0; color: var(--text-muted); }
.tree-icon-accent { color: var(--accent); }

.tree-name {
  flex: 1; min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  color: var(--text-secondary);
}
.tree-row:hover .tree-name { color: var(--text-primary); }
.tree-node[data-type="dir"] > .tree-row .tree-name { color: var(--text-primary); font-weight: 500; }
.tree-node[data-type="root"] > .tree-row .tree-name { color: var(--text-primary); font-weight: 500; }
.tree-node[data-type="disk"] > .tree-row .tree-name { color: var(--text-primary); font-weight: 500; }
.tree-node[data-type="root"] > .tree-row .tree-icon,
.tree-node[data-type="dir"] > .tree-row .tree-icon { color: var(--accent); }
.tree-node[data-type="fs"] > .tree-row .tree-icon { color: var(--accent); }
.tree-node[data-type="fs"] > .tree-row .tree-name { color: var(--text-primary); font-weight: 500; }
.tree-node[data-type="archive"] > .tree-row .tree-icon { color: var(--accent); }

.tree-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 8px;
  text-align: right;
}

.tree-actions { display: flex; gap: 2px; opacity: 0; pointer-events: none; margin-left: 4px; transition: opacity 100ms; }
.tree-row:hover .tree-actions { opacity: 1; pointer-events: auto; }

.tree-action {
  display: flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; padding: 0;
  border: none; border-radius: 4px;
  background: transparent; color: var(--text-muted);
  cursor: pointer; transition: background 100ms, color 100ms;
}
.tree-action:hover { background: var(--bg-surface); color: var(--text-primary); }
.tree-action .icon { width: 14px; height: 14px; }

.tree-children { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.15s; }
.tree-node[data-expanded] > .tree-children { grid-template-rows: 1fr; }
.tree-children-inner { overflow: hidden; }
.tree-branch { margin-left: 13px; padding-left: 14px; border-left: 1px solid color-mix(in oklch, var(--border-subtle) 50%, transparent); }

.tree-badge {
  font-size: 9px; font-family: var(--font-mono); color: var(--text-muted);
  background: color-mix(in oklch, var(--text-muted) 12%, transparent);
  border: 1px solid color-mix(in oklch, var(--text-muted) 20%, transparent);
  border-radius: 3px; padding: 0 4px; margin-left: 6px;
  text-transform: uppercase; letter-spacing: 0.5px; line-height: 16px; flex-shrink: 0;
}
.tree-badge:empty { display: none; }
.tree-badge-accent { background: color-mix(in oklch, var(--accent) 20%, transparent); color: var(--accent); }
.tree-badge-built { background: color-mix(in oklch, #4ade80 15%, transparent); color: #4ade80; }
.tree-badge-warn { color: #ef4444; }

.tree-node[data-loading] { opacity: 0.5; }
.tree-node[data-failed] .tree-icon { color: #ef4444; }
.tree-node[data-failed] .tree-name { opacity: 0.6; }
.tree-node[data-dragging] { opacity: 0.5; }
.tree-node[data-dragover] { border-top: 2px solid var(--accent); margin-top: -2px; }
.tree-node[data-writable][data-dragover] { border-top: none; margin-top: 0; background: rgba(245, 158, 11, 0.06); outline: 1px dashed var(--accent); outline-offset: -1px; }
.tree-node[data-writable] .tree-actions { opacity: 1; pointer-events: auto; }
.tree-node[data-selected-for-export] > .tree-row { background: rgba(245, 158, 11, 0.08); }
.tree-node[data-selected-for-export] > .tree-row [data-action="select"] { color: var(--accent); }

/* === Disassembly View === */

.disasm { font: 11.5px/1 var(--font-mono); position: relative; user-select: none; }

.dl {
  display: grid;
  grid-template-columns: 24px 72px 90px 1fr;
  gap: 0 6px;
  padding: 0 10px 0 52px;
  height: 20px;
  line-height: 20px;
  cursor: default;
}

.dl[data-current] { background: var(--accent-dim); border-left: 2px solid var(--accent); padding-left: 50px; }
.dl[data-breakpoint] { background: rgba(239, 68, 68, 0.12); }
.dl[data-breakpoint][data-current] { background: rgba(239, 68, 68, 0.2); border-left-color: var(--error); }
.dl.selected { background: color-mix(in oklch, var(--accent) 8%, transparent); outline: 1px solid color-mix(in oklch, var(--accent) 25%, transparent); outline-offset: -1px; }

.dl-ln { color: var(--text-muted); opacity: 0.4; text-align: right; font-size: 10px; }
.dl-addr { color: color-mix(in oklch, var(--accent) 70%, var(--text-secondary)); }
.dl-bytes { color: var(--text-muted); opacity: 0.55; overflow: hidden; text-overflow: ellipsis; }
.dl-inst { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Mnemonic colors */
.dl-inst .m { font-weight: 500; margin-right: 6px; color: var(--syn-keyword); }
.dl-inst .m-call { color: var(--syn-call); }
.dl-inst .m-jmp, .dl-inst .m-jcc { color: var(--syn-jump); }
.dl-inst .m-ret, .dl-inst .m-int { color: var(--syn-ret); }
.dl-inst .m-nop { color: var(--syn-nop); opacity: 0.3; }
.dl-inst .m-push, .dl-inst .m-pop { color: var(--syn-stack); }
.dl-inst .m-mov, .dl-inst .m-lea { color: var(--syn-move); }
.dl-inst .m-load, .dl-inst .m-store { color: var(--syn-stack); }

/* Operand colors */
.dl-inst .o { color: var(--text-secondary); }
.dl-inst .o-reg { color: var(--syn-register); }
.dl-inst .o-imm { color: var(--syn-immediate); }
.dl-inst .o-mem { color: var(--syn-memory); opacity: 0.85; }
.dl-inst .o-punc { color: var(--text-muted); opacity: 0.55; }

/* Branch target links */
.dl-inst .o-link { color: var(--accent); cursor: pointer; border-bottom: 1px solid transparent; transition: border-color var(--dur); }
.dl-inst .o-link:hover { border-bottom-color: var(--accent); }
.dl-inst .o-link.jmp { color: var(--success); }
.dl-inst .o-link.jmp:hover { border-bottom-color: var(--success); }

.dl-inst .comment { color: var(--syn-comment); font-style: italic; margin-left: 12px; }
.dl-xref { color: var(--info); font-size: 9px; margin-left: 4px; }

/* Jump arrows SVG overlay */
.disasm-arrows { position: absolute; left: 0; top: 0; width: 48px; pointer-events: none; overflow: visible; }

/* === Hex View === */

.hex-view { font-family: var(--font-mono); font-size: 12px; line-height: 1.5; color: var(--text-secondary); }
.hex-view.selecting { user-select: none; }

.hex-row { display: flex; gap: 0; white-space: pre; }
.hex-offset { color: var(--text-muted); user-select: none; flex-shrink: 0; margin-right: 8px; }

.hex-bytes { display: flex; flex-wrap: nowrap; gap: 0; }
.hex-byte { display: inline-block; width: 2.5ch; text-align: center; color: var(--text-secondary); cursor: default; border-radius: 2px; }
.hex-byte.hex-zero { color: var(--text-muted); }
.hex-gap { display: inline-block; width: 0.75ch; }

.hex-sel { background: var(--accent); color: var(--bg-base); border-radius: 2px; }
.hex-group { margin-right: 3px; }

.hex-ascii { color: var(--accent); margin-left: auto; padding-left: 8px; flex-shrink: 0; }
.ascii-char { cursor: default; border-radius: 2px; }

/* === Inspector Panes (stacked Property / Preview / Hex) === */

.inspector-layout { display: flex; flex-direction: column; }
.inspector-pane + .inspector-pane { border-top: 1px solid var(--border-subtle); }
.inspector-pane > .panel-header { height: 28px; padding: 0 12px; font-size: 10px; color: var(--text-muted); }
.inspector-pane-content { flex: 1; overflow: auto; }

.preview-empty { display: flex; align-items: center; justify-content: center; height: 100%; color: var(--text-muted); font-size: 11px; }
.preview-image { max-width: 100%; max-height: 100%; object-fit: contain; display: block; margin: 8px auto; }
.preview-text { font-family: var(--font-mono); font-size: 11px; line-height: 1.5; white-space: pre-wrap; word-break: break-word; color: var(--text-secondary); padding: 8px 12px; }

/* === Info Grid === */

.info-grid { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: 11px; align-items: baseline; padding: 8px 12px; }
.info-label { color: var(--text-muted); font-family: var(--font-mono); font-size: 10px; white-space: nowrap; }
.info-value { font-family: var(--font-mono); color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.info-note { padding: 8px 12px; font-size: 11px; color: var(--text-muted); font-style: italic; line-height: 1.4; }

.info-actions { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 12px; border-top: 1px solid var(--border-subtle); }
.info-action {
  display: inline-flex; align-items: center; gap: 4px; padding: 4px 8px;
  font-size: 10px; font-family: var(--font-mono); color: var(--text-secondary);
  background: var(--bg-surface); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm); cursor: pointer; letter-spacing: 0.3px;
  transition: background 120ms, color 120ms, border-color 120ms;
}
.info-action:hover { background: var(--bg-hover); color: var(--text-primary); border-color: var(--border-default); }
.info-action[data-primary] { color: var(--accent); background: color-mix(in oklch, var(--accent) 8%, transparent); border-color: color-mix(in oklch, var(--accent) 20%, transparent); }
.info-action[data-primary]:hover { background: color-mix(in oklch, var(--accent) 16%, transparent); }
.info-action .icon { width: 11px; height: 11px; }

/* === Code Blocks === */

code { font-family: var(--font-mono); font-size: 0.9em; padding: 0.15rem 0.4rem; background: var(--bg-surface); border-radius: 4px; color: var(--accent); }
pre { font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.6; overflow-x: auto; }
pre code { background: none; padding: 0; color: var(--text-primary); }

.code-block {
  position: relative;
  margin-bottom: var(--space-m);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--code-bg);
  border: 1px solid var(--border-subtle);
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: color-mix(in oklch, var(--bg-surface) 50%, transparent);
  padding: var(--space-xs) var(--space-s);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.code-block pre { padding: var(--space-m); margin: 0; }

/* === Tables === */

.table-container {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

table { width: 100%; border-collapse: collapse; }

th {
  background: var(--bg-surface);
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border-subtle); font-size: 0.875rem; }
tr:last-child td { border-bottom: none; }

/* === Dropdowns === */

.dropdown { position: relative; }

.dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 11px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  cursor: pointer;
  width: 100%;
  transition: border-color var(--dur);
}
.dropdown-trigger:hover { border-color: var(--accent); color: var(--text-primary); }

.dropdown-chevron { width: 16px; height: 16px; transition: transform 0.2s ease; }
.dropdown.open .dropdown-chevron { transform: rotate(180deg); }

.dropdown-menu {
  position: absolute;
  top: 100%; left: 0; right: 0;
  margin-top: 4px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 0.25rem;
  display: none;
  z-index: 50;
  max-height: 300px;
  overflow-y: auto;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}
.dropdown.open .dropdown-menu { display: block; }

.dropdown-item {
  display: block;
  width: 100%;
  padding: 6px 10px;
  text-align: left;
  background: none;
  border: 0;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 11px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  cursor: pointer;
  border-radius: 4px;
  transition: background var(--dur);
}
.dropdown-item:hover { color: var(--text-primary); }
.dropdown-item.selected { color: var(--accent); }

/* === Search Input === */

input[type="search"], input[type="text"] {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
}
input:focus { outline: none; border-color: var(--accent); }

/* === Settings Drawer === */

.settings-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur), visibility var(--dur);
  z-index: 200;
}
.settings-backdrop[data-open] { opacity: 1; visibility: visible; }

.settings-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  max-width: calc(100vw - 40px);
  background: var(--bg-elevated);
  border-left: 1px solid var(--border-subtle);
  transform: translateX(100%);
  transition: transform 200ms ease-out;
  z-index: 201;
  display: flex;
  flex-direction: column;
}
.settings-drawer[data-open] { transform: translateX(0); }

.settings-content {
  flex: 1;
  overflow: visible;
  padding: 16px;
}

.setting-group { margin-bottom: 20px; }
.setting-group:last-child { margin-bottom: 0; }

.setting-label {
  display: block;
  font: 500 10px/1 var(--font-sans);
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
  user-select: none;
  pointer-events: none;
}

.settings-content { user-select: none; }

/* Dropdown color swatch */
.dropdown-swatch {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--swatch-color);
  margin-right: 6px;
  flex-shrink: 0;
  vertical-align: middle;
}

.setting-group[data-disabled] { opacity: 0.35; pointer-events: none; cursor: default; }

/* Accent radio row */
.accent-radios { display: flex; gap: 6px; align-items: center; padding: 4px 0; }
.accent-radio {
  width: 14px; height: 14px; border-radius: 50%; border: 2px solid transparent;
  background: var(--swatch-color); cursor: pointer; transition: border-color var(--dur), box-shadow var(--dur);
  padding: 0; flex-shrink: 0;
}
.accent-radio:hover { border-color: var(--text-muted); }
.accent-radio[data-selected] { border-color: var(--text-primary); box-shadow: 0 0 0 2px var(--bg-elevated), 0 0 0 3px var(--swatch-color); }

/* === Drop Zone === */

.drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
  text-align: center;
  color: var(--text-muted);
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-sm);
  margin: 8px;
  transition: border-color var(--dur), background var(--dur);
  cursor: pointer;
}
.drop-zone:hover, .drop-zone[data-dragover] { border-color: var(--accent); background: var(--accent-dim); }
.drop-zone-icon { width: 24px; height: 24px; margin-bottom: 8px; color: var(--text-muted); }
.drop-zone-text { font-size: 12px; }
.drop-zone input { display: none; }

/* === Empty State === */

.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; color: var(--text-muted); font-size: 13px; }

/* === Toasts === */

.toast-container {
  position: fixed;
  bottom: 40px; right: 16px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  font-size: 12px;
  color: var(--text-secondary);
  pointer-events: auto;
  animation: toast-in 200ms ease;
}
.toast[data-removing] { animation: toast-out 150ms ease forwards; }
.toast .icon { width: 16px; height: 16px; flex-shrink: 0; }
.toast-success .icon { color: var(--success); }
.toast-error .icon { color: var(--error); }
.toast-info .icon { color: var(--accent); }

@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }
@keyframes toast-out { to { opacity: 0; transform: translateY(8px); } }

/* === Callouts === */

.callout {
  background: color-mix(in oklch, var(--bg-elevated) 85%, transparent);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-m);
  margin-bottom: var(--space-m);
  position: relative;
  overflow: hidden;
}
.callout::before { content: ''; position: absolute; top: 0; left: 0; bottom: 0; width: 3px; }
.callout-info::before { background: var(--blue); }
.callout-warning::before { background: var(--warning); }
.callout-accent::before, .callout-quirk::before { background: var(--accent); }
.callout-title { font-weight: 600; margin-bottom: 0.5rem; display: flex; align-items: center; gap: 0.5rem; }

/* === Command Palette === */

.command-palette {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 150ms, visibility 150ms;
}
.command-palette[data-open] { opacity: 1; visibility: visible; }

.command-palette-content {
  width: 500px;
  max-width: 90vw;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  transform: translateY(-10px);
  transition: transform 150ms;
}
.command-palette[data-open] .command-palette-content { transform: translateY(0); }

.command-palette-input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.command-palette-input-wrap .icon { width: 18px; height: 18px; color: var(--text-muted); flex-shrink: 0; }

.command-palette-input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: none;
  font: inherit;
  font-size: 14px;
  color: var(--text-primary);
  padding: 0;
}
.command-palette-input::placeholder { color: var(--text-muted); }

.command-palette-results { max-height: 300px; overflow-y: auto; }
.command-palette-empty { padding: 24px; text-align: center; color: var(--text-muted); font-size: 13px; }

.command-palette-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  cursor: pointer;
  transition: background 100ms;
}
.command-palette-item:hover, .command-palette-item[data-selected] { background: var(--bg-hover); }
.command-palette-item .icon { width: 16px; height: 16px; color: var(--text-muted); flex-shrink: 0; }
.command-palette-item[data-type="dir"] .icon { color: var(--text-secondary); }

.command-palette-item-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-primary); font-size: 13px; }
.command-palette-item-path { font-size: 11px; color: var(--text-muted); flex-shrink: 0; max-width: 250px; white-space: nowrap; }

.command-palette-hint { padding: 8px 16px; border-top: 1px solid var(--border-subtle); font-size: 11px; color: var(--text-muted); display: flex; gap: 16px; }
.command-palette-hint kbd { display: inline-block; padding: 2px 5px; background: var(--bg-surface); border-radius: 3px; font-family: var(--font-mono); font-size: 10px; }

/* === Loading Skeleton === */

.skeleton { display: flex; align-items: center; gap: 8px; padding: 8px 10px; margin-bottom: 4px; }
.skeleton-icon { width: 16px; height: 16px; border-radius: 4px; background: var(--bg-surface); animation: pulse 1.5s ease-in-out infinite; }
.skeleton-text { flex: 1; height: 12px; border-radius: 4px; background: var(--bg-surface); animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 0.4; } 50% { opacity: 0.8; } }

/* === Graph === */

.graph-view { display: block; user-select: none; }

.graph-node rect { fill: var(--bg-surface); stroke: var(--border-default); stroke-width: 1; }
.graph-node text { fill: var(--text-secondary); font: 11px var(--font-mono); pointer-events: none; }

.graph-node-entry rect { stroke: var(--success); }
.graph-node-exit rect { stroke: var(--error); }
.graph-node-current rect { stroke: var(--accent); fill: var(--accent-dim); }
.graph-node-current text { fill: var(--text-primary); }
.graph-node-expandable { cursor: pointer; }
.graph-node-expandable rect { stroke-dasharray: 4 2; }
.graph-node-expandable:hover rect { stroke-width: 2; }

.graph-node:hover rect { stroke-width: 1.5; filter: brightness(1.15); }

.graph-edge { fill: none; stroke: var(--text-muted); stroke-width: 1.5; }
.graph-edge-true { stroke: var(--success); }
.graph-edge-false { stroke: var(--error); }
.graph-edge-back { stroke: var(--accent); stroke-dasharray: 4 3; }
.graph-edge-label { fill: var(--text-muted); font: 9px var(--font-sans); text-anchor: middle; }

.graph-back { margin-bottom: 6px; font-size: 11px; display: inline-flex; align-items: center; gap: 4px; }
.graph-back svg { display: block; }

/* === Virtual List Rows === */

.vrow {
  display: grid;
  grid-template-columns: var(--cols);
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  font-size: 12px;
  cursor: default;
  border-bottom: 1px solid var(--border-subtle);
}
.vrow-tight { padding: 0 10px; gap: 6px; }

/* === Semantic Components === */

.badge-sm { font-size: 9px; padding: 2px 6px; }

.divider-h { flex: 0 0 1px; background: var(--border-subtle); }

.demo-card {
  display: flex;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.pill-wrap {
  display: inline-flex;
  padding: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
}

.tab-pane-body { padding: 12px; }
.callout p { margin: 0; }

.code-preview { font-size: 12px; color: var(--text-secondary); line-height: 1.8; }

.info-section { margin-top: 12px; padding-top: 8px; border-top: 1px solid var(--border-subtle); }
.info-section-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.info-flags {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  font-size: 11px;
  font-family: var(--font-mono);
}

.tool-footer-sep { opacity: 0.3; }
.tool-footer-spacer { flex: 1; }

/* === Utility Classes === */

.mono { font-family: var(--font-mono); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.number { color: var(--accent); font-family: var(--font-mono); }

/* === Responsive === */

@media (max-width: 768px) { .content-container { padding: 1rem; } }