:root {
  --bg: #faf9f7;
  --surface: #ffffff;
  --border: #e8e6e3;
  --text: #1e1e1e;
  --muted: #6b6b6b;
  --accent: #6965db;
  --accent-soft: #ebeaff;
  --wall: #1e1e1e;
  --wall-ext: #0d0d0d;
  --grid: #eceae6;
  --selection: #6965db;
  --handle: #ffffff;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --radius: 6px;
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  font-family: var(--font);
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
  overflow: hidden;
}

.app {
  --col-left: minmax(240px, 280px);
  --col-right: minmax(260px, 300px);
  --col-collapsed: 40px;
  display: grid;
  grid-template-columns: var(--col-left) minmax(0, 1fr) var(--col-right);
  grid-template-rows: 44px minmax(0, 1fr) 28px;
  height: 100vh;
  width: 100%;
  overflow: hidden;
}

.app.left-collapsed {
  --col-left: var(--col-collapsed);
}

.app.right-collapsed {
  --col-right: var(--col-collapsed);
}

/* —— Top bar —— */
.toolbar {
  grid-column: 1 / -1;
  position: relative;
  z-index: 20;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
  min-width: 0;
  overflow: visible;
  padding: 0 10px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.toolbar-inner {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.toolbar .brand {
  font-weight: 600;
  font-size: 14px;
  margin-right: 2px;
  letter-spacing: -0.02em;
  white-space: nowrap;
  flex-shrink: 0;
}

.toolbar .sep {
  width: 1px;
  height: 22px;
  background: var(--border);
  margin: 0 2px;
  flex-shrink: 0;
}

.toolbar .btn-label-short {
  display: none;
}

.toolbar-save-name {
  width: 88px;
  min-width: 0;
  max-width: 120px;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  flex-shrink: 1;
}

.toolbar-more {
  position: relative;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.toolbar-more-menu {
  display: contents;
}

.toolbar-more-menu > .btn,
.toolbar-more-menu > .toolbar-save-name,
.toolbar-more-menu > .sep {
  flex-shrink: 0;
}

.toolbar-more-menu > .sep-more-tools {
  height: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}

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

.btn.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

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

.btn.primary:hover {
  filter: brightness(1.05);
}

.btn.icon {
  padding: 5px 8px;
  min-width: 32px;
  justify-content: center;
}

.toolbar-more > .toolbar-more-trigger {
  display: none;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.toolbar .spacer {
  flex: 1 1 auto;
  min-width: 4px;
}

.toolbar .hint {
  font-size: 11px;
  color: var(--muted);
  font-family: var(--mono);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Toolbar responsive breakpoints */
@media (max-width: 1200px) {
  .toolbar .hint {
    display: none;
  }
}

@media (max-width: 1100px) {
  .toolbar .btn-label-full {
    display: none;
  }

  .toolbar .btn-label-short {
    display: inline;
  }

  .toolbar-group--modes .btn:not(.icon) {
    padding: 5px 8px;
    min-width: 32px;
    justify-content: center;
  }
}

@media (max-width: 900px) {
  .toolbar .sep-file {
    display: none;
  }

  .toolbar-more > .toolbar-more-trigger {
    display: inline-flex;
  }

  .toolbar-more-menu {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    z-index: 30;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    min-width: 168px;
    padding: 6px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow), 0 6px 20px rgba(0, 0, 0, 0.08);
  }

  .toolbar-more.is-open .toolbar-more-menu {
    display: flex;
  }

  .toolbar-more-menu .toolbar-save-name {
    width: 100%;
    max-width: none;
  }

  .toolbar-more-menu > .sep-more-tools {
    display: none;
  }
}

@media (max-width: 720px) {
  .toolbar {
    gap: 4px;
    padding: 0 6px;
  }

  .toolbar-inner {
    gap: 4px;
  }

  .toolbar .brand {
    font-size: 13px;
  }

  .toolbar .sep-brand,
  .toolbar .sep-modes {
    display: none;
  }

  .btn {
    padding: 4px 7px;
  }

  .btn.icon {
    padding: 4px 6px;
    min-width: 28px;
  }

  .toolbar-group--modes .btn-label-short {
    display: none;
  }

  .toolbar-group--modes .btn:not(.icon) {
    min-width: 28px;
    font-size: 12px;
    letter-spacing: -0.03em;
  }

  #btn-mode-furnish::after {
    content: 'F';
  }

  #btn-mode-walls::after {
    content: 'E';
  }
}

@media (max-width: 520px) {
  .toolbar .brand {
    max-width: 4.5em;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

/* —— Side panels —— */
.panel {
  position: relative;
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: row;
  min-width: 0;
  min-height: 0;
}

.panel-right {
  border-right: none;
  border-left: 1px solid var(--border);
  flex-direction: row-reverse;
}

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

.app.left-collapsed .panel-left .panel-body,
.app.right-collapsed .panel-right .panel-body {
  display: none;
}

.panel-toggle {
  flex: 0 0 40px;
  width: 40px;
  min-width: 40px;
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  border-left: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}

.panel-right .panel-toggle {
  border-left: none;
  border-right: 1px solid var(--border);
}

.panel-toggle:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.panel-toggle-icon {
  display: inline-block;
  transition: transform 0.15s ease;
}

.app.left-collapsed .panel-left .panel-toggle-icon {
  transform: rotate(180deg);
}

.app.right-collapsed .panel-right .panel-toggle-icon {
  transform: rotate(180deg);
}

.toolbar .panel-toolbar-btn[aria-pressed='true'] {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.panel-scroll {
  flex: 1 1 0;
  min-height: 0;
  min-width: 0;
  overflow-y: auto;
  overflow-x: hidden;
}

.panel-left #catalog-list {
  flex: 2 1 0;
}

.panel-left #save-panel {
  flex: 1 1 0;
}

.panel-search {
  padding: 0 8px 6px;
  flex-shrink: 0;
}

.panel-search input {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  background: var(--surface);
}

.panel-search input:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

.panel-hint {
  margin: 0 12px 6px;
  font-size: 11px;
  color: var(--muted);
  flex-shrink: 0;
}

.panel h2 {
  margin: 0;
  padding: 10px 12px 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  flex-shrink: 0;
}

#props-header {
  flex-shrink: 0;
}

.panel-section {
  padding: 4px 8px 10px;
  min-width: 0;
  min-height: 0;
}

/* HTMX hidden templates */
.template-store {
  display: none;
}

/* Catalog */
.catalog-group {
  margin-bottom: 6px;
}

.catalog-group summary {
  padding: 6px 8px;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  border-radius: var(--radius);
  overflow-wrap: break-word;
}

.catalog-group summary::-webkit-details-marker {
  display: none;
}

.catalog-group summary:hover {
  background: var(--bg);
}

.catalog-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
  min-width: 0;
  padding: 6px 10px 6px 14px;
  border: none;
  background: transparent;
  font: inherit;
  text-align: left;
  cursor: grab;
  border-radius: var(--radius);
}

.catalog-item > span:last-child {
  flex: 1;
  min-width: 0;
  overflow-wrap: break-word;
}

.catalog-item:hover {
  background: var(--accent-soft);
}

.catalog-item .thumb {
  width: 28px;
  height: 20px;
  border: 1.5px solid var(--wall);
  border-radius: 2px;
  flex-shrink: 0;
  background: #f4f3f0;
}

.catalog-item .thumb.round {
  border-radius: 50%;
}

.catalog-item .dims {
  font-size: 10px;
  color: var(--muted);
  font-family: var(--mono);
}

/* Properties */
.prop-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 8px;
}

.prop-row label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 11px;
  color: var(--muted);
}

.prop-row input,
.prop-row select {
  padding: 5px 7px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  background: var(--surface);
}

.prop-row input:focus,
.prop-row select:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

.empty-state {
  padding: 16px 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.save-hint {
  padding-top: 0;
  padding-bottom: 8px;
}

/* —— Canvas —— */
.canvas-wrap {
  position: relative;
  z-index: 1;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
  background: var(--bg);
  background-image: radial-gradient(var(--grid) 1px, transparent 1px);
  background-size: 12px 12px;
  user-select: none;
  -webkit-user-select: none;
}

.canvas-wrap.cursor-grab,
#floor-canvas.cursor-grab {
  cursor: grab;
}

.canvas-wrap.cursor-grabbing,
#floor-canvas.cursor-grabbing {
  cursor: grabbing;
}

#floor-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: default;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

#floor-canvas.mode-furnish .item {
  cursor: grab;
}

#floor-canvas.mode-walls .wall-hit {
  cursor: move;
}

#floor-canvas.mode-walls .wall-endpoint {
  cursor: crosshair;
}

/* —— Status —— */
.statusbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 12px;
  font-size: 11px;
  color: var(--muted);
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  min-width: 0;
  overflow: hidden;
}

.statusbar .msg {
  color: var(--text);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  padding: 8px 14px;
  background: var(--wall);
  color: #fff;
  border-radius: var(--radius);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 100;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Modal overlay for import */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.modal {
  background: var(--surface);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  padding: 16px;
  width: min(480px, 90vw);
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal h3 {
  margin: 0;
  font-size: 15px;
}

.modal textarea {
  width: 100%;
  min-height: 200px;
  font-family: var(--mono);
  font-size: 11px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  resize: vertical;
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.hidden {
  display: none !important;
}

/* SVG element styles (also set in JS) */
.wall-line {
  stroke: var(--wall);
  stroke-width: 3;
  stroke-linecap: square;
}

.wall-line.exterior {
  stroke: var(--wall-ext);
  stroke-width: 4;
}

.wall-line.selected {
  stroke: var(--selection);
}

.wall-hit-area {
  stroke: transparent;
  stroke-width: 12;
  pointer-events: stroke;
  cursor: default;
}

.wall-length-tip {
  position: fixed;
  z-index: 90;
  padding: 2px 6px;
  font-size: 11px;
  font-family: var(--mono);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

.item-rect {
  fill: #f0eeea;
  stroke: #c8c5be;
  stroke-width: 1.2;
}

.item-rect.fixture {
  fill: #e8eef5;
  stroke: #a8b8cc;
}

.item-rect.selected {
  stroke: var(--selection);
  stroke-width: 2;
}

.item-label {
  font-size: 9px;
  fill: var(--muted);
  pointer-events: none;
  user-select: none;
}

.room-label-hit {
  fill: transparent;
  stroke: none;
  cursor: grab;
}

.room-label {
  font-size: 11px;
  fill: var(--muted);
  opacity: 0.7;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
}

.room-label-hit {
  fill: transparent;
  pointer-events: all;
  cursor: pointer;
}

.room-label.selected {
  fill: var(--text);
  opacity: 1;
}

.mode-walls .room-label-hit {
  pointer-events: none;
  cursor: default;
}

.canvas-wrap.placing-label {
  cursor: crosshair;
}

.canvas-wrap.placing-label #floor-canvas {
  cursor: crosshair;
}

.room-label-group.selected .room-label {
  opacity: 1;
  fill: var(--selection);
}

#floor-canvas .room-label-group {
  cursor: grab;
}

#floor-canvas .room-label-group:active {
  cursor: grabbing;
}

.opening-door {
  fill: none;
  stroke: var(--muted);
  stroke-width: 1;
  stroke-dasharray: 4 2;
}

.grid-major {
  stroke: var(--grid);
  stroke-width: 0.5;
}

.trace-image {
  pointer-events: none;
}

.trace-hit {
  pointer-events: all;
  cursor: grab;
}

.background-layer.selected .trace-hit {
  cursor: grab;
}

#floor-canvas.mode-furnish .trace-handle {
  cursor: nwse-resize;
}

#floor-canvas.mode-furnish .trace-handle[data-bg-resize='ne'],
#floor-canvas.mode-furnish .trace-handle[data-bg-resize='sw'] {
  cursor: nesw-resize;
}

.resize-handle,
.rotate-handle {
  fill: var(--handle);
  stroke: var(--selection);
  stroke-width: 1.5;
  cursor: nwse-resize;
}

.resize-handle[data-resize='ne'],
.resize-handle[data-resize='sw'] {
  cursor: nesw-resize;
}

.rotate-handle {
  cursor: grab;
}

.wall-endpoint-handle {
  fill: var(--selection);
  stroke: #fff;
  stroke-width: 1.5;
  cursor: crosshair;
}

/* —— Multiplayer sync —— */
.toolbar-group.toolbar-group--sync {
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.sync-badge {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: var(--bg);
  white-space: nowrap;
  max-width: 7em;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sync-badge--ok {
  border-color: #b8e0c8;
  background: #f0fdf4;
  color: #166534;
}

.sync-badge--warn {
  border-color: #fde68a;
  background: #fffbeb;
  color: #a16207;
}

.sync-badge--bad {
  border-color: #fecaca;
  background: #fef2f2;
  color: #b91c1c;
}

.sync-name-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--muted);
  margin: 0;
}

.sync-name-hint {
  display: none;
}

.sync-display-name {
  width: 4.5rem;
  max-width: 12vw;
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  font-size: 12px;
}

.sync-peers {
  pointer-events: none;
}

.sync-peer-name {
  font-size: 11px;
  font-weight: 600;
  paint-order: stroke fill;
  stroke: rgba(255, 255, 255, 0.85);
  stroke-width: 3px;
}

.statusbar .sync-saved {
  flex: 1;
  min-width: 0;
  text-align: center;
  opacity: 0.85;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 900px) {
  .sync-display-name {
    width: 4rem;
  }
  .toolbar-group.toolbar-group--sync .btn-label-full {
    display: none;
  }
  .toolbar-group.toolbar-group--sync .btn-label-short {
    display: inline;
  }
}

@media (max-width: 640px) {
  .toolbar .sep-sync {
    display: none;
  }

  .sync-display-name {
    width: 3.25rem;
  }
}