:root {
  --pcb-edge-color: black;
  --pad-color: #878787;
  --pad-hole-color: #CCCCCC;
  --pad-color-highlight: #00cc44;
  --pad-color-highlight-both: #cccc00;
  --pad-color-highlight-marked: #00cccc;
  --pin1-outline-color: #ffb629;
  --pin1-outline-color-highlight: #ffb629;
  --pin1-outline-color-highlight-both: #fcbb39;
  --pin1-outline-color-highlight-marked: #fdbe41;
  --silkscreen-edge-color: #aa4;
  --silkscreen-polygon-color: #4aa;
  --silkscreen-text-color: #4aa;
  --fabrication-edge-color: #907651;
  --fabrication-polygon-color: #907651;
  --fabrication-text-color: #a27c24;
  --track-color-front: #cc4444;
  --zone-color-front: #e8a0a0;
  --track-color-back: #4444cc;
  --zone-color-back: #a0a0e8;
  --track-color-highlight: #00ee44;
  --zone-color-highlight: #00ee4480;
}

html,
body {
  margin: 0px;
  height: 100%;
  font-family: Verdana, sans-serif;
}

.dark.topmostdiv {
  --pcb-edge-color: #eee;
  --pad-color: #808080;
  --pad-hole-color: #1a1a2e;
  --pin1-outline-color: #ffa800;
  --pin1-outline-color-highlight: #ccff00;
  --track-color-front: #993333;
  --zone-color-front: #553030;
  --track-color-back: #333399;
  --zone-color-back: #303055;
  background-color: #1a1a2e;
  color: #eee;
}

.topmostdiv {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background-color: white;
  transition: background-color 0.65s, color 0.65s;
}

/* ─── Fullscreen Canvas ─────────────────────────────────────────── */

#canvascontainer {
  position: absolute;
  inset: 0;
  z-index: 0;
  touch-action: none;
  cursor: crosshair;
}

#canvascontainer:active {
  cursor: grabbing;
}

/* ─── Flip Button ───────────────────────────────────────────────── */

.flip-btn {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  padding: 8px 28px;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  width: auto;
  height: auto;
  color: #222;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: background 0.65s, color 0.65s, border-color 0.65s;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

.flip-btn:hover {
  background: rgba(255, 255, 255, 0.9);
}

.dark .flip-btn {
  background: rgba(30, 36, 40, 0.75);
  border-color: rgba(255, 255, 255, 0.1);
  color: #eee;
}

.dark .flip-btn:hover {
  background: rgba(40, 48, 54, 0.9);
}

/* ─── Sidebars ──────────────────────────────────────────────────── */

.sidebar {
  position: absolute;
  z-index: 10;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.sidebar,
.sidebar .sidebar-header,
.sidebar .sidebar-controls,
.sidebar .sidebar-table-container,
.sidebar .sidebar-settings {
  background: rgba(255, 255, 255, 0.75);
  transition: background 0.65s, border-color 0.65s, color 0.65s;
}

.dark .sidebar,
.dark .sidebar .sidebar-header,
.dark .sidebar .sidebar-controls,
.dark .sidebar .sidebar-table-container,
.dark .sidebar .sidebar-settings {
  background: rgba(22, 33, 62, 0.75);
}

.dark .sidebar {
  border-color: rgba(255, 255, 255, 0.1);
}

.bom-sidebar {
  left: 12px;
  top: 12px;
  bottom: 12px;
  width: 380px;
  min-width: 250px;
  max-width: 60vw;
  resize: horizontal;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  transition: transform 0.3s ease;
}

.bom-sidebar.sidebar-closed {
  transform: translateX(calc(-100% - 24px));
}

.view-sidebar {
  right: 12px;
  top: 12px;
  bottom: 12px;
  width: 270px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  transition: transform 0.3s ease;
}

.view-sidebar.sidebar-closed {
  transform: translateX(calc(100% + 24px));
}

.dark .bom-sidebar,
.dark .view-sidebar {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.sidebar-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
  border-radius: 12px 12px 0 0;
}

.dark .sidebar-header {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.sidebar-title {
  font-size: 16px;
  font-weight: bold;
  line-height: 1.3;
}

.sidebar-subtitle {
  font-size: 12px;
  color: #666;
  margin-top: 2px;
}

.dark .sidebar-subtitle {
  color: #aaa;
}

/* Pull tabs live outside sidebar divs for mobile accessibility */

.pull-tab {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 56px;
  border: none;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-size: 16px;
  color: #666;
  z-index: 15;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.pull-tab:hover {
  background: rgba(255, 255, 255, 0.95);
  color: #222;
}

.dark .pull-tab {
  background: rgba(30, 36, 40, 0.75);
  color: #888;
  border-color: rgba(255, 255, 255, 0.1);
}

.dark .pull-tab:hover {
  background: rgba(40, 48, 54, 0.95);
  color: #eee;
}

.pull-tab-left {
  left: 0;
  border-radius: 0 8px 8px 0;
  border-left: none;
  transition: left 0.3s ease;
}

.pull-tab-left.tab-open {
  left: calc(12px + 380px);
}

.pull-tab-right {
  right: 0;
  border-radius: 8px 0 0 8px;
  border-right: none;
  transition: right 0.3s ease;
}

.pull-tab-right.tab-open {
  right: calc(12px + 270px);
}

.sidebar-controls {
  padding: 8px 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}

.dark .sidebar-controls {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.sidebar-filter-container {
  padding: 8px 16px;
  flex-shrink: 0;
}

.sidebar-filter {
  width: 100%;
  height: 36px;
  padding: 8px 12px;
  font-family: Consolas, "DejaVu Sans Mono", Monaco, monospace;
  font-size: 14px;
  box-sizing: border-box;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 8px;
  outline: none;
  background: rgba(255, 255, 255, 0.5);
  transition: background-color 0.2s, border 0.2s;
}

.dark .sidebar-filter {
  background: rgba(0, 0, 0, 0.3);
  color: #eee;
  border-color: rgba(255, 255, 255, 0.1);
}

.sidebar-filter:focus {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(0, 0, 0, 0.3);
}

.dark .sidebar-filter:focus {
  background: rgba(0, 0, 0, 0.5);
  border-color: rgba(255, 255, 255, 0.2);
}

.sidebar-filter::placeholder {
  color: #ccc;
}

.dark .sidebar-filter::placeholder {
  color: #666;
}

.sidebar-table-container {
  flex: 1 1 0;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
}

.sidebar-settings {
  flex: 1 1 0;
  overflow-y: auto;
  padding: 0 8px;
}

/* (sidebar tabs replaced by pull-tabs integrated into sidebars) */

/* ─── Buttons ───────────────────────────────────────────────────── */

button {
  background-color: #eee;
  border: 1px solid #888;
  color: black;
  height: 44px;
  width: 44px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 14px;
  font-weight: bolder;
}

.dark button {
  background-color: #c3b7b5;
}

button.depressed {
  background-color: #0a0;
  color: white;
}

.dark button.depressed {
  background-color: #b3b;
}

button:focus {
  outline: 0;
}

/* BOM mode buttons */

button#bom-grouped-btn {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect x='2' y='2' width='28' height='28' rx='5' fill='%23f8f8f8' stroke='%23222' stroke-width='1.8'/%3E%3Cline x1='6' y1='7' x2='26' y2='7' stroke='%23222' stroke-width='2' stroke-linecap='round'/%3E%3Cline x1='9' y1='12' x2='26' y2='12' stroke='%23888' stroke-width='1.2' stroke-linecap='round'/%3E%3Cline x1='9' y1='16' x2='26' y2='16' stroke='%23888' stroke-width='1.2' stroke-linecap='round'/%3E%3Cline x1='6' y1='21' x2='26' y2='21' stroke='%23222' stroke-width='2' stroke-linecap='round'/%3E%3Cline x1='9' y1='26' x2='26' y2='26' stroke='%23888' stroke-width='1.2' stroke-linecap='round'/%3E%3C/svg%3E");
}

button#bom-ungrouped-btn {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect x='2' y='2' width='28' height='28' rx='5' fill='%23f8f8f8' stroke='%23222' stroke-width='1.8'/%3E%3Cline x1='6' y1='7' x2='26' y2='7' stroke='%23555' stroke-width='1.8' stroke-linecap='round'/%3E%3Cline x1='6' y1='12.5' x2='26' y2='12.5' stroke='%23555' stroke-width='1.8' stroke-linecap='round'/%3E%3Cline x1='6' y1='18' x2='26' y2='18' stroke='%23555' stroke-width='1.8' stroke-linecap='round'/%3E%3Cline x1='6' y1='23.5' x2='26' y2='23.5' stroke='%23555' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
}

button#bom-netlist-btn {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect x='2' y='2' width='28' height='28' rx='5' fill='%23f8f8f8' stroke='%23222' stroke-width='1.8'/%3E%3Ccircle cx='10' cy='10' r='3.5' fill='none' stroke='%23222' stroke-width='1.8'/%3E%3Ccircle cx='22' cy='22' r='3.5' fill='none' stroke='%23222' stroke-width='1.8'/%3E%3Cline x1='13' y1='13' x2='19' y2='19' stroke='%23222' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
}

.left-most-button {
  border-right: 0;
  border-top-left-radius: 6px;
  border-bottom-left-radius: 6px;
}

.middle-button {
  border-right: 0;
}

.right-most-button {
  border-top-right-radius: 6px;
  border-bottom-right-radius: 6px;
}

.button-container {
  font-size: 0;
}

.dark .button-container {
  filter: invert(1);
}

.button-container button {
  background-size: 32px 32px;
  background-position: 5px 5px;
  background-repeat: no-repeat;
}

@media print {
  .hideonprint {
    display: none;
  }
}

/* ─── BOM Table ─────────────────────────────────────────────────── */

.bom {
  border-collapse: collapse;
  font-family: Consolas, "DejaVu Sans Mono", Monaco, monospace;
  font-size: 10pt;
  table-layout: fixed;
  width: 100%;
  margin-top: 1px;
  position: relative;
}

.bom th,
.bom td {
  border: 1px solid black;
  padding: 5px;
  word-wrap: break-word;
  text-align: center;
  position: relative;
}

.dark .bom th,
.dark .bom td {
  border: 1px solid #777;
}

.bom th {
  background-color: #CCCCCC;
  background-clip: padding-box;
  position: sticky;
  top: 0;
  z-index: 10;
}

.dark .bom th {
  background-color: #16213e;
}

.bom tr.highlighted:nth-child(n) {
  background-color: #cfc;
}

.dark .bom tr.highlighted:nth-child(n) {
  background-color: #226022;
}

.bom tr:nth-child(even) {
  background-color: #f2f2f2;
}

.dark .bom tr:nth-child(even) {
  background-color: #1e2744;
}

.bom tr.checked {
  color: #1cb53d;
}

.dark .bom tr.checked {
  color: #2cce54;
}

.bom tr {
  transition: background-color 0.2s;
}

.bom .numCol {
  width: 30px;
}

.bom .quantity {
  width: 65px;
}

/* ─── Layer Color Key ──────────────────────────────────────────── */

.layer-key {
  padding: 10px 8px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.dark .layer-key {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.layer-key-title {
  font-size: 11px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  color: #666;
}

.dark .layer-key-title {
  color: #aaa;
}

.layer-key-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-size: 12px;
  font-family: Consolas, "DejaVu Sans Mono", Monaco, monospace;
}

.layer-swatch {
  display: inline-block;
  width: 14px;
  height: 14px;
  min-width: 14px;
  border-radius: 3px;
  border: 1px solid rgba(0, 0, 0, 0.15);
}

.dark .layer-swatch {
  border-color: rgba(255, 255, 255, 0.15);
}

.layer-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  font-size: 12px;
  font-family: Consolas, "DejaVu Sans Mono", Monaco, monospace;
  cursor: pointer;
}

.layer-toggle:hover {
  background: rgba(0, 0, 0, 0.04);
}

.dark .layer-toggle:hover {
  background: rgba(255, 255, 255, 0.04);
}

.layer-toggle input[type="checkbox"] {
  margin: 0;
  cursor: pointer;
}

.layer-toggle-label {
  user-select: none;
}

/* ─── Settings Controls ─────────────────────────────────────────── */

.flexbox {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.menu-label {
  display: inline-block;
  padding: 8px;
  border: 1px solid #ccc;
  border-top: 0;
  width: calc(100% - 18px);
}

.menu-label-top {
  border-top: 1px solid #ccc;
}

/* ─── Slider ────────────────────────────────────────────────────── */

.slider {
  -webkit-appearance: none;
  width: 100%;
  margin: 3px 0;
  padding: 0;
  outline: none;
  opacity: 0.7;
  -webkit-transition: .2s;
  transition: opacity .2s;
  border-radius: 3px;
}

.slider:hover {
  opacity: 1;
}

.slider:focus {
  outline: none;
}

.slider::-webkit-slider-runnable-track {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  background: #d3d3d3;
  border-radius: 3px;
  border: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #0a0;
  cursor: pointer;
  margin-top: -4px;
}

.dark .slider::-webkit-slider-thumb {
  background: #3d3;
}

.slider::-moz-range-thumb {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #0a0;
  cursor: pointer;
}

.slider::-moz-range-track {
  height: 8px;
  background: #d3d3d3;
  border-radius: 3px;
}

.dark .slider::-moz-range-thumb {
  background: #3d3;
}

.slider::-ms-track {
  width: 100%;
  height: 8px;
  border-width: 3px 0;
  background: transparent;
  border-color: transparent;
  color: transparent;
  transition: opacity .2s;
}

.slider::-ms-fill-lower {
  background: #d3d3d3;
  border: none;
  border-radius: 3px;
}

.slider::-ms-fill-upper {
  background: #d3d3d3;
  border: none;
  border-radius: 3px;
}

.slider::-ms-thumb {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #0a0;
  cursor: pointer;
  margin: 0;
}

/* ─── Scrollbar ─────────────────────────────────────────────────── */

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #aaa;
}

::-webkit-scrollbar-thumb {
  background: #666;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* ─── Links ─────────────────────────────────────────────────────── */

a {
  color: #0278a4;
}

.dark a {
  color: #00b9fd;
}

/* ─── Version Badge ────────────────────────────────────────────── */

.version-badge {
  position: absolute;
  bottom: 6px;
  right: 6px;
  z-index: 5;
  font-size: 10px;
  font-family: Consolas, "DejaVu Sans Mono", Monaco, monospace;
  color: rgba(0, 0, 0, 0.2);
  pointer-events: none;
  user-select: none;
}

.dark .version-badge {
  color: rgba(255, 255, 255, 0.15);
}

/* ─── Mobile Responsive ──────────────────────────────────────────── */

@media (max-width: 768px) {
  .bom-sidebar {
    left: 0;
    top: 0;
    bottom: 0;
    width: 85vw;
    max-width: 85vw;
    min-width: unset;
    border-radius: 0 12px 12px 0;
    resize: none;
  }

  .view-sidebar {
    right: 0;
    top: 0;
    bottom: 0;
    width: 75vw;
    border-radius: 12px 0 0 12px;
  }

  .bom-sidebar.sidebar-closed {
    transform: translateX(calc(-100% - 12px));
  }

  .view-sidebar.sidebar-closed {
    transform: translateX(calc(100% + 12px));
  }

  .pull-tab-left.tab-open {
    left: 85vw;
  }

  .pull-tab-right.tab-open {
    right: 75vw;
  }

  .flip-btn {
    top: 8px;
    padding: 6px 20px;
    font-size: 12px;
  }
}