:root {
  /* Base colors */
  --bg: hsl(200, 10%, 7%);
  --transparent-bg: hsla(200, 10%, 7%, 0.75);
  --fg: hsl(200, 15%, 92%);
  --muted: hsl(200, 10%, 65%);
  --card: hsl(187, 15%, 9%);
  --accent: hsl(165, 45%, 45%);
  
  /* Semantic colors */
  --border-subtle: hsla(0, 0%, 100%, 0.06);
  --border-normal: hsla(0, 0%, 100%, 0.12);
  --border-strong: hsla(0, 0%, 100%, 0.2);
  --bg-subtle: hsla(0, 0%, 100%, 0.02);
  --bg-normal: hsla(0, 0%, 100%, 0.04);
  --bg-strong: hsla(0, 0%, 100%, 0.08);
  --accent-bg: hsla(165, 80%, 65%, 0.1);
  --accent-border: hsla(165, 80%, 65%, 0.2);
  --accent-glow: hsla(165, 80%, 65%, 0.2);
  
  /* Interactive states */
  --hover-bg: hsla(0, 0%, 100%, 0.08);
  --hover-border: hsla(0, 0%, 100%, 0.2);
  --current-bg: hsla(165, 80%, 65%, 0.15);
  --current-border: hsla(165, 80%, 65%, 0.3);
  
  /* Shadows */
  --shadow-card: 0 10px 30px hsla(0, 0%, 0%, 0.25);
  --shadow-glow: 0 0 10px hsla(165, 80%, 65%, 0.2);
  
  /* Grid colors */
  --grid-primary: hsl(210, 43%, 25%);
  --grid-secondary: hsl(217, 17%, 20%);
  
  /* Ground color */
  --ground: hsl(220, 14%, 5%);
  
  /* White transparency variations */
  --white-02: hsla(0, 0%, 100%, 0.02);
  --white-05: hsla(0, 0%, 100%, 0.05);
  --white-10: hsla(0, 0%, 100%, 0.1);
  --white-20: hsla(0, 0%, 100%, 0.2);
  --white-30: hsla(0, 0%, 100%, 0.3);
  --white-60: hsla(0, 0%, 100%, 0.6);
  
  /* Accent transparency variations */
  --accent-10: hsla(165, 80%, 65%, 0.1);
  --accent-05: hsla(165, 80%, 65%, 0.05);
  
  /* Error colors */
  --error-20: hsla(0, 60%, 70%, 0.2);
  --error-40: hsla(0, 60%, 70%, 0.4);
}

* { box-sizing: border-box; }

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-subtle);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb {
  background: var(--border-normal);
  border-radius: 5px;
  border: 2px solid var(--bg-subtle);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

::-webkit-scrollbar-thumb:active {
  background: var(--accent);
}

::-webkit-scrollbar-corner {
  background: var(--bg-subtle);
}

html, body { 
  height: 100%; 
  overflow: hidden;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--fg);
  background: radial-gradient(50rem 31.25rem at 30% 10%, hsla(200, 15%, 12%, 1) 0%, var(--bg) 60%);
}

header {
  padding: 1rem 1.25rem 0.5rem;
}

.header-content {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.sidebar-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: 0.375rem;
  color: var(--fg);
  font-size: 1rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-direction: row;
}

.sidebar-toggle-text {
  font-size: 0.875em;
  font-weight: 500;
  white-space: nowrap;
}

.sidebar-toggle i {
  font-size: 1.125rem;
}

.sidebar-toggle:hover {
  background: var(--hover-bg);
  border-color: var(--hover-border);
  color: var(--accent);
}

.sidebar-toggle:active {
  background: var(--bg-normal);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.sidebar-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.header-text {
  flex: 1;
  pointer-events: none;
}

.header-text > * {
  pointer-events: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

header h1 {
  margin: 0;
  font-size: clamp(18px, 2.5vw, 24px);
  letter-spacing: 0.2px;
  font-weight: 700;
}

.logo-clickable {
  cursor: pointer;
  transition: color 0.2s ease;
  display: inline-block;
}

.logo-clickable:hover {
  color: var(--accent);
}

header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.75em;
  max-width: 80ch;
}

#wrap {
  display: grid;
  grid-template-columns: 1fr min(20rem, 25vw);
  min-height: 0;
  max-width: 100vw;
  width: 100%;
  overflow-x: hidden;
}

#scene {
  position: relative;
  min-height: 26.25rem;
  height: calc(100vh - 3.75rem);
  background: var(--bg);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}

#sidebar {
  padding: 0.75rem;
  border-left: 1px solid var(--border-subtle);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  min-width: 0;
  min-height: 0;
  height: calc(100vh - 3.75rem);
  transition: transform 0.3s ease;
  position: relative;
}

@media (max-width: 60rem) {
  #sidebar {
    padding-top: 1.5rem;
  }
  
  #sidebar::before {
    content: '';
    position: absolute;
    top: 0.75rem;
    left: 50%;
    transform: translateX(-50%);
    width: 3rem;
    height: 0.25rem;
    background: var(--border-normal);
    border-radius: 0.125rem;
    opacity: 0.6;
  }
}

.panel {
  background: var(--card);
  border: 1px solid var(--border-subtle);
  border-radius: 1rem;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
}

.panel.controls {
  flex-shrink: 0;
}

.panel.legend {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel.legend .nav-buttons {
  flex-shrink: 0;
  margin-top: 0;
}

.panel.size-reference {
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.panel.size-reference .phone-content,
.panel.size-reference .controls,
.panel.size-reference .nav-buttons {
  opacity: 1;
  transition: opacity 0.2s ease;
}

.panel.size-reference.collapsed .phone-content,
.panel.size-reference.collapsed .controls,
.panel.size-reference.collapsed .nav-buttons {
  display: none;
  opacity: 0;
}

.panel.size-reference.collapsed {
  flex: 0 0 auto;
}

.panel h2 {
  margin: 0 0 0.5rem 0;
  font-size: 1em;
  letter-spacing: .2px;
  color: var(--muted);
  text-transform: uppercase;
  flex-shrink: 0;
}

.panel.legend .controls.sort-controls {
  flex-shrink: 0;
}

.panel.legend .legend-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  max-height: 100%;
}

.phone-content {
  flex: 1;
  min-height: 0;
}

.legend {
  display: flex;
  flex-direction: column;
}

.legend-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 0.5rem;
  flex-shrink: 0;
}

.legend-tab {
  flex: 1;
  padding: 0.5rem 0.75rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  border-bottom: 2px solid transparent;
  font-size: 0.75em;
  font-weight: 500;
  user-select: none;
}

.legend-tab:hover {
  background: var(--hover-bg);
}

.legend-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: var(--transparent-bg);
}

.legend .legend-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  align-content: start;
}

.legend-tab-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  align-content: start;
}

.legend-tab-content:not(.active) {
  display: none;
}

.legend-tab-content.active {
  display: grid;
}

.legend-item {
  display: flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  border-radius: 0.5rem;
  background: var(--bg-normal);
  border: 1px solid var(--border-subtle);
  transition: border-color 0.1s ease, box-shadow 0.1s ease, flex-direction 0.2s ease;
  cursor: pointer;
  user-select: none;
  margin-bottom: 0.25rem;
}

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

.legend-item-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex: 1;
  margin-right: 0.4rem;
}

.legend-item-model {
  font-size: 0.75em;
}

.legend-item-brand {
  font-size: 0.75em;
  color: var(--muted);
}

.legend-item-actions {
  display: flex;
  align-items: center;
}

.legend-item.pinned .legend-pin {
  color: var(--accent);
  transform: scale(1.1);
}

.legend-item:hover:not(.edit-mode):not(.add-new):not(.selected) {
  background: var(--hover-bg);
  border-color: var(--border-normal);
}

.legend-item.selected {
  background: var(--current-bg);
  border: 1px solid var(--current-border);
  box-shadow: var(--shadow-glow);
  flex-direction: column;
  align-items: stretch;
}

.legend-item.selected:hover {
  background: var(--current-bg);
  box-shadow: var(--shadow-glow), 0 0 0 1px var(--current-border);
}

.legend-item.selected .legend-item-content {
  margin-bottom: 0.5rem;
}

.legend-item.selected .legend-item-details {
  display: block;
  color: var(--muted);
  padding: 0 0.25rem;
}

.legend-item-details {
  display: none;
}

.legend-separator {
  width: 1px;
  height: 16px;
  background: var(--border-normal);
  margin: 0 0.25rem;
}

.legend-pin {
  font-size: 0.75em;
  color: var(--muted);
  transition: all 0.2s ease;
  padding: 0 0.25rem;
  cursor: pointer;
}

.legend-item:hover .legend-pin {
  color: var(--accent);
  transform: scale(1.1);
}

.dimensions {
  font-size: 0.75em;
  color: var(--muted);
  line-height: 1.3;
  font-variant-numeric: tabular-nums;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.dimension-row {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
}

.dimension-label {
  font-weight: 500;
}

.dimension-value {
  font-variant-numeric: tabular-nums;
}

.product-name {
  font-size: 0.75em;
  font-weight: bold;
  color: var(--fg);
  line-height: 1.2;
}

.brand-name {
  font-size: 0.75em;
  color: var(--muted);
  font-weight: 400;
  margin-top: 2px;
}

.swatch {
  width: 16px; height: 16px;
  border-radius: 0.25rem;
  outline: 1px solid var(--border-strong);
}

.dim {
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  font-size: 0.75em;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  align-items: center;
}

.navigation-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.nav-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  width: 100%;
  margin-top: auto;
  padding: 8px 0 0 0;
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.nav-buttons button {
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border-normal);
  border-radius: 0.25rem;
  background: var(--bg-normal);
  color: var(--fg);
  font-size: 0.75em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-buttons button:hover {
  background: var(--hover-bg);
  border-color: var(--hover-border);
}

.controls label {
  font-size: 0.75em;
  color: var(--muted);
}

.slider-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border-subtle);
  border-radius: 0.375rem;
  background: var(--bg-subtle);
  transition: all 0.2s ease;
}

.slider-wrapper label {
  min-width: 3.5rem;
  margin: 0;
}

.slider-wrapper input[type="range"] {
  flex: 1;
}

.slider-wrapper #scaleVal {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--fg);
  font-size: 0.75em;
}

.button-group {
  display: flex;
  gap: 0.5rem;
  width: 100%;
}

.checkbox-item {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.5rem;
  border: 1px solid var(--border-subtle);
  border-radius: 0.375rem;
  background: var(--bg-subtle);
  cursor: pointer;
  transition: all 0.2s ease;
  margin: 0;
}

.checkbox-item:hover {
  background: var(--bg-normal);
  border-color: var(--border-normal);
}

.controls input[type="checkbox"] {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border-normal);
  border-radius: 3px;
  background: var(--bg-normal);
  cursor: pointer;
  position: relative;
  margin-right: 6px;
  vertical-align: middle;
  transition: all 0.2s ease;
}

.controls input[type="checkbox"]:hover {
  border-color: var(--accent);
  background: var(--bg-subtle);
}

.controls input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.controls input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.controls input[type="range"] {
  width: 160px;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
  border: none;
  outline: none;
}

.controls input[type="range"] {
  --slider-fill: 0%;
}

.controls input[type="range"]::-webkit-slider-track {
  background: linear-gradient(to right, var(--accent) 0%, var(--accent) var(--slider-fill), var(--bg-strong) var(--slider-fill), var(--bg-strong) 100%);
  height: 4px;
  border-radius: 2px;
  border: none;
}

.controls input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  background: var(--accent);
  height: 16px;
  width: 16px;
  border-radius: 50%;
  border: 2px solid var(--bg);
  cursor: pointer;
  margin-top: -6px;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
}

.controls input[type="range"]::-webkit-slider-runnable-track {
  background: linear-gradient(to right, var(--accent) 0%, var(--accent) var(--slider-fill), var(--bg-strong) var(--slider-fill), var(--bg-strong) 100%);
  height: 4px;
  border-radius: 2px;
}

.controls input[type="range"]::-moz-range-track {
  background: var(--bg-strong);
  height: 4px;
  border-radius: 2px;
  border: none;
}

.controls input[type="range"]::-moz-range-thumb {
  background: var(--accent);
  height: 16px;
  width: 16px;
  border-radius: 50%;
  border: 2px solid var(--bg);
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
}

.controls input[type="range"]::-moz-range-progress {
  background: var(--accent);
  height: 4px;
  border-radius: 2px;
}

.controls input[type="range"]:focus {
  outline: none;
}

.custom-dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-selected {
  padding: 4px 8px;
  border: 1px solid var(--border-normal);
  border-radius: 0.25rem;
  background: var(--bg-normal);
  color: var(--fg);
  font-size: 0.75em;
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 24px;
  min-width: max-content;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.dropdown-selected-text {
  white-space: nowrap;
}

.dropdown-separator {
  width: 1px;
  height: 16px;
  background: var(--border-normal);
  margin: 0 0.25rem;
  align-self: center;
}

.dropdown-selected::after {
  content: '▼';
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.75em;
  color: var(--muted);
  transition: transform 0.2s ease;
}

.dropdown-selected:hover {
  background: var(--hover-bg);
  border-color: var(--hover-border);
}

.dropdown-options {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--transparent-bg);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-normal);
  border-radius: 0.25rem;
  box-shadow: var(--shadow-card);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.2s ease;
  margin-top: 2px;
  min-width: 100%;
}

.dropdown-options div {
  padding: 0.5rem 0.75rem;
  font-size: 0.75em;
  cursor: pointer;
  transition: background-color 0.15s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dropdown-options div:hover {
  background: var(--hover-bg);
}

.dropdown-options div:first-child {
  border-radius: 0.25rem 0.25rem 0 0;
}

.dropdown-options div:last-child {
  border-radius: 0 0 0.25rem 0.25rem;
}

.dropdown-options div.selected {
  background: var(--accent);
  color: white;
}

.dropdown-options div.selected:hover {
  background: var(--accent);
}

#phoneSelectorOptions.dropdown-options {
  min-width: 160px;
}

.sort-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sort-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.controls button {
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--white-20);
  border-radius: 0.5rem;
  background: var(--white-05);
  color: var(--fg);
  font-size: 0.75em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.controls button:hover {
  background: var(--white-10);
  border-color: var(--accent);
}

.github-button {
  padding: 0;
  border: 1px solid var(--border-normal);
  border-radius: 0.25rem;
  background: var(--bg-normal);
  color: var(--fg);
  font-size: 1.25em;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
}

.github-button:hover {
  background: var(--hover-bg);
  border-color: var(--hover-border);
}

.legend-item.edit-mode {
  background: var(--accent-10);
  border-color: var(--accent);
}

.legend-item .edit-btn {
  padding: 2px 6px;
  font-size: 0.75em;
  border-radius: 0.25rem;
  border: 1px solid var(--white-20);
  background: var(--white-05);
  color: var(--muted);
  cursor: pointer;
}

.legend-item .edit-btn:hover {
  background: var(--accent);
  color: white;
}

.legend-item .delete-btn {
  background: var(--error-20);
  border-color: var(--error-40);
}

.legend-item .delete-btn:hover {
  background: var(--error-40);
}

.legend-item.add-new {
  border: 2px dashed var(--white-30);
  background: var(--white-02);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  grid-template-columns: none;
}

.legend-item.add-new:hover {
  border-color: var(--accent);
  background: var(--accent-05);
}

.legend-item.add-new i {
  font-size: 1.5em;
  color: var(--white-60);
  transition: all 0.2s ease;
}

.legend-item.add-new:hover i {
  color: var(--accent);
}

.legend-item.edit-mode input {
  background: var(--white-10);
  border: 1px solid var(--white-20);
  border-radius: 0.25rem;
  padding: 2px 6px;
  color: var(--fg);
  font-size: 0.75em;
  width: 100%;
  margin: 1px 0;
}

.legend-item.edit-mode input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--accent-10);
}

.legend-item.edit-mode .product-name-input {
  font-weight: bold;
  font-size: 0.75em;
}

.legend-item.edit-mode .brand-input {
  font-size: 0.75em;
  color: var(--muted);
  margin-top: 2px;
}

.legend-item.edit-mode .dim-inputs {
  display: flex;
  gap: 4px;
  align-items: center;
  font-size: 0.75em;
}

.legend-item.edit-mode .dim-inputs input {
  width: 45px;
  text-align: center;
}

.legend-item.edit-mode .dim-inputs span {
  color: var(--muted);
  font-size: 1em;
}

footer {
  color: var(--muted);
  font-size: 0.75em;
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 50rem;
  border: 1px solid var(--border-normal);
  background: var(--bg-normal);
  font-size: 1em;
  color: var(--muted);
}

.label {
  pointer-events: none;
  padding: 2px 4px;
  background: hsla(200, 20%, 5%, 0.7);
  border: 1px solid var(--border-strong);
  border-radius: 0.5rem;
  font-size: 0.75em;
  line-height: 1.2;
  color: #e0f0f0;
  text-shadow: 0 1px 1px hsla(0, 0%, 0%, 0.6);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  backdrop-filter: blur(4px);
  margin: 0;
}

.label .small {
  display: block;
  color: #a0b0b0;
  font-size: 0.75em;
}

@media (max-width: 60rem) {
  .header-actions {
    display: flex;
  }
  
  .sidebar-toggle {
    display: flex;
  }
  
  .github-button {
    min-width: 44px;
    min-height: 44px;
    padding: 0.5rem;
  }
  
  #wrap { 
    grid-template-columns: 1fr !important; 
    grid-template-rows: 1fr;
    position: relative;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
  }
  
  #sidebar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    width: 100vw;
    max-width: 100vw;
    max-height: calc(100vh - 3.75rem);
    min-height: 0;
    z-index: 999;
    border-left: none;
    border-right: none;
    border-top: 1px solid var(--border-subtle);
    border-bottom: none;
    border-radius: 1rem 1rem 0 0;
    background-color: var(--bg);
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    padding-top: 2rem;
    padding-bottom: env(safe-area-inset-bottom, 0.75rem);
    box-sizing: border-box;
    visibility: hidden;
    pointer-events: none;
    overflow-y: auto;
  }
  
  #sidebar.active {
    transform: translateY(0);
    visibility: visible;
    pointer-events: all;
  }
  
  .panel.legend {
    overflow: visible;
    flex: none;
    min-height: auto;
  }
  
  .panel.legend .legend-content {
    overflow: visible;
    flex: none;
  }
  
  .panel.legend .nav-buttons {
    margin-top: 0.5rem;
    position: relative;
  }
  
  .custom-dropdown:hover .dropdown-options,
  .custom-dropdown:hover .dropdown-selected::after {
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-4px) !important;
  }
  
  .custom-dropdown:hover .dropdown-selected::after {
    transform: translateY(-50%) rotate(0deg) !important;
  }
  
  .phone-dropdown-container:hover .phone-dropdown-options,
  .phone-dropdown-container:hover .phone-dropdown-arrow {
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-4px) rotate(0deg) !important;
    pointer-events: none !important;
  }
  
  .phone-dropdown-container:hover,
  .phone-item:hover {
    background: var(--bg-subtle) !important;
    border-color: var(--border-subtle) !important;
  }
  
  .custom-dropdown.active .dropdown-options {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    pointer-events: all !important;
  }
  
  .custom-dropdown.active .dropdown-selected::after {
    transform: translateY(-50%) rotate(180deg) !important;
  }
  
  .phone-dropdown-container.active .phone-dropdown-options {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
  }
  
  .phone-dropdown-container.active .phone-dropdown-arrow {
    transform: rotate(180deg) !important;
  }
  
  .sidebar-overlay {
    display: none;
  }
  
  header {
    position: relative;
    z-index: 1000;
    background: var(--bg);
  }
  
  header .header-text {
    cursor: default;
  }
  
  header .logo-clickable {
    cursor: pointer;
  }
  
  header .header-actions {
    cursor: pointer;
  }
  
  #scene {
    order: 1;
    min-height: 20rem;
    height: calc(100vh - 3.75rem);
    width: 100%;
    max-width: 100vw;
  }
}

@media (max-width: 30rem) {
  header {
    padding: 0.75rem 1rem 0.5rem;
  }
  
  .header-content {
    gap: 0.5rem;
  }
  
  header h1 {
    font-size: clamp(1rem, 4vw, 1.25rem);
  }
  
  header p {
    font-size: 0.75rem;
    display: none;
  }
  
  #sidebar {
    max-height: calc(100vh - 3.5rem);
    min-height: 0;
    padding: 0.75rem;
    padding-bottom: env(safe-area-inset-bottom, 0.75rem);
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    width: 100vw;
    max-width: 100vw;
    box-sizing: border-box;
  }
  
  #scene {
    height: calc(100vh - 3.5rem);
    width: 100%;
    max-width: 100vw;
  }
  
  .panel {
    padding: 0.75rem;
  }
  
  .panel h2 {
    font-size: 0.875em;
  }
  
  .nav-buttons {
    padding: 12px 0 0 0;
    gap: 0.5rem;
  }
  
  .nav-buttons button {
    padding: 12px 16px;
    font-size: 0.875em;
    min-height: 44px;
    touch-action: manipulation;
  }
  
  .button-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .button-group button {
    width: 100%;
    min-height: 44px;
    padding: 12px 16px;
    font-size: 0.875em;
  }
  
  .checkbox-item {
    min-height: 44px;
    padding: 0.5rem 0.75rem;
    font-size: 0.875em;
  }
  
  .slider-wrapper {
    padding: 0.5rem 0.75rem;
  }
  
  .slider-wrapper label {
    min-width: 3rem;
    font-size: 0.875em;
  }
  
  .legend-tab {
    padding: 0.75rem 0.5rem;
    font-size: 0.875em;
    min-height: 44px;
  }
  
  .legend-item {
    padding: 0.5rem 0.75rem;
    min-height: 44px;
  }
  
  .phone-dropdown {
    min-height: 44px;
    padding: 0.75rem;
  }
  
  .phone-dropdown-item {
    min-height: 44px;
    padding: 0.75rem;
  }
  
  .sort-controls {
    padding: 0.5rem 0;
  }
  
  .custom-dropdown {
    min-height: 44px;
  }
  
  .dropdown-selected {
    padding: 0.75rem;
    min-height: 44px;
  }
  
  .dropdown-options div {
    padding: 0.75rem;
    min-height: 44px;
  }
}

@media (min-resolution: 2dppx) and (max-width: 80rem) and (min-width: 60.01rem) {
  #wrap {
    grid-template-columns: 1fr min(18rem, 30vw);
  }
}

html {
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

#scene canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
  object-fit: fill;
}

* {
  max-width: 100%;
}

input, button, select {
  max-width: none;
}
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.panel-header h2 {
  margin: 0;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-strong);
  border: 1px solid var(--border-normal);
  transition: .3s;
  border-radius: 24px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--fg);
  transition: .3s;
  border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--accent);
  border-color: var(--accent);
}

.toggle-switch input:focus + .toggle-slider {
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(20px);
}

.phone-item {
  display: grid;
  grid-template-columns: 16px 1fr auto;
  gap: 0.5rem;
  align-items: center;
  padding: 8px;
  border-radius: 12px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  transition: all 0.2s ease;
  margin-bottom: 0.5rem;
}

.phone-dropdown {
  grid-template-columns: 16px 1fr auto 1px auto;
  cursor: pointer;
  user-select: none;
}

.phone-item:hover {
  background: var(--bg-normal);
  border-color: var(--border-normal);
}

.phone-swatch {
  width: 16px;
  height: 16px; /* Default height. Is overridden dynamically. */
  border-radius: 0.25rem;
  outline: 1px solid var(--border-strong);
  background: #d0d4d8;
  transition: height 0.2s ease;
}

.phone-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.phone-name {
  font-size: 0.75em;
  font-weight: bold;
  color: var(--fg);
  line-height: 1.2;
}

.phone-info .phone-brand {
  font-size: 0.75em;
  color: var(--muted);
  font-weight: 400;
}

.phone-separator {
  width: 1px;
  height: 100%;
  background: var(--border-normal);
  margin: 0 0.25rem;
}

.phone-dropdown-arrow {
  font-size: 0.75em;
  color: var(--muted);
  transition: transform 0.2s ease;
  padding: 0 0.25rem;
}

@media (hover: hover) and (pointer: fine) {
  .phone-dropdown-container:hover .phone-dropdown-arrow {
    transform: rotate(180deg);
  }
  
  .phone-dropdown-container:hover .phone-dropdown-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .custom-dropdown:hover .dropdown-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
}

.phone-dropdown-container {
  position: relative;
}

.phone-dropdown-options {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--transparent-bg);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-normal);
  border-radius: 0.25rem;
  box-shadow: var(--shadow-card);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.2s ease;
  margin-top: 2px;
  max-height: 40vh;
  overflow-y: auto;
}

.phone-dropdown-container.active .phone-dropdown-arrow {
  transform: rotate(180deg) !important;
}

.phone-dropdown-container.active .phone-dropdown-options {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) !important;
  pointer-events: all !important;
}

@media (hover: none), (pointer: coarse) {
  .phone-dropdown-container:hover .phone-dropdown-options,
  .phone-dropdown-container:hover .phone-dropdown-arrow {
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-4px) rotate(0deg) !important;
  }
  
  .custom-dropdown:hover .dropdown-options,
  .custom-dropdown:hover .dropdown-selected::after {
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-4px) !important;
  }
  
  .phone-item:hover {
    background: var(--bg-subtle) !important;
    border-color: var(--border-subtle) !important;
  }
}

.phone-dropdown-options div {
  padding: 0.5rem 0.75rem;
  font-size: 0.75em;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.phone-dropdown-options div:hover {
  background: var(--hover-bg);
}

.phone-dropdown-options div:first-child {
  border-radius: 0.25rem 0.25rem 0 0;
}

.phone-dropdown-options div:last-child {
  border-radius: 0 0 0.25rem 0.25rem;
}

.phone-dropdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.phone-model {
  font-weight: 500;
}

.phone-brand {
  color: var(--muted);
  font-size: 1em;
  font-weight: 400;
}

.custom-phone-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--transparent-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-normal);
  border-radius: 12px;
  min-width: 400px;
  max-width: 90vw;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
  margin: 0;
  color: var(--fg);
  font-size: 1.25em;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5em;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.25rem;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: var(--bg-subtle);
  color: var(--fg);
}

.modal-body {
  padding: 20px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 4px;
  color: var(--fg);
  font-weight: 500;
  font-size: 1em;
}

.form-group input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-normal);
  border-radius: 0.25rem;
  background: var(--bg-subtle);
  color: var(--fg);
  font-size: 1em;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.btn-primary, .btn-secondary {
  padding: 8px 16px;
  border-radius: 0.25rem;
  font-size: 1em;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid;
}

.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: hsl(from var(--accent) h s calc(l * 0.85));
  border-color: hsl(from var(--accent) h s calc(l * 0.85));
}

.btn-secondary {
  background: var(--bg-subtle);
  color: var(--fg);
  border-color: var(--border-normal);
}

.btn-secondary:hover {
  background: var(--bg-normal);
  border-color: var(--border-strong);
}

.add-custom-phone {
  padding: 0.5rem 0.75rem;
  color: var(--accent);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 0.25rem;
  margin: 4px;
}

.add-custom-phone:hover {
  background: var(--accent-glow);
  color: var(--accent);
}

.custom-phone-option {
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 0.25rem;
  margin: 2px 4px;
}

.custom-phone-option:hover {
  background: var(--bg-subtle);
}