:root {
  --bg: #111318;
  --surface: #1c1f27;
  --border: #2a2d36;
  --text: #f0f0f0;
  --muted: #8b8fa8;
  --mint: #a4e0c3;
  --teal: #00a19b;
  --rose: #d69aa2;
  --left-w: 220px;
  --right-w: 300px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at -5% -10%, #232a36 0%, var(--bg) 55%);
  color: var(--text);
  font-family: "Segoe UI", sans-serif;
}

#app {
  display: grid;
  grid-template-columns: var(--left-w) 6px 1fr 6px var(--right-w);
  grid-template-rows: auto 1fr;
  height: 100vh;
}

/* ── Topbar ── */
.topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  overflow-y: visible;
  padding: 8px 12px;
  min-height: 56px;
  border-bottom: 1px solid var(--border);
  background: #171b24;
  position: relative;
  z-index: 40;
}
.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--mint);
  margin-right: 4px;
  flex-shrink: 0;
}

/* ── Toolbar groups ── */
.toolbar-group {
  display: flex;
  gap: 6px;
  align-items: center;
  padding: 4px 8px;
  border: 1px solid #242938;
  border-radius: 10px;
  background: #1a1e29;
  flex-shrink: 0;
}
.toolbar-group.wide {
  min-width: 0;
}
.toolbar-dropdown {
  position: relative;
  padding: 4px 6px;
}
.toolbar-dropdown > summary {
  list-style: none;
  border: 1px solid var(--border);
  background: #252a37;
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
}
.toolbar-dropdown > summary::-webkit-details-marker {
  display: none;
}
.toolbar-dropdown[open] > summary {
  border-color: var(--mint);
}
.toolbar-dropdown-panel {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  min-width: 280px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #1a1e29;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}
.toolbar-dropdown-panel .upload-btn {
  justify-content: center;
  text-align: center;
}

/* Group label (small tag inside toolbar groups) */
.group-label {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  padding-right: 6px;
  border-right: 1px solid var(--border);
  margin-right: 2px;
  align-self: center;
  flex-shrink: 0;
}

/* ── Buttons & uploads ── */
button, .upload-btn {
  border: 1px solid var(--border);
  background: #252a37;
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
}
button:hover, .upload-btn:hover { border-color: var(--mint); }
button.danger { border-color: var(--rose); color: var(--rose); }

/* ── Labels & inputs ── */
label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: var(--muted);
}

/* Inline labels: label text and input side-by-side (used in toolbar + checkbox rows) */
label.inline {
  flex-direction: row;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 11px;
  cursor: pointer;
}

/* Labels inside toolbar groups sit inline with their inputs */
.toolbar-group label {
  flex-direction: row;
  align-items: center;
  gap: 4px;
}

input:not([type="checkbox"]):not([type="range"]):not([type="color"]), select {
  background: #11151d;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 6px;
  font-size: 12px;
}
input[type="color"] {
  background: #11151d;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 2px;
  height: 28px;
  width: 40px;
  cursor: pointer;
}
input[type="checkbox"] {
  accent-color: var(--teal);
  width: 14px;
  height: 14px;
  margin: 0;
  flex-shrink: 0;
}
input[type="range"] {
  accent-color: var(--teal);
}

/* Remove browser spin buttons from number inputs */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}

/* ── Panel resize handles ── */
.panel-handle {
  position: relative;
  background: transparent;
  cursor: col-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  transition: background 0.15s;
}
.panel-handle::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--border);
  opacity: 0;
  transition: opacity 0.15s;
}
.panel-handle:hover::before {
  opacity: 1;
}
.sidebar-toggle {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  padding: 0;
  font-size: 11px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 21;
  flex-shrink: 0;
}
.panel-handle:hover .sidebar-toggle {
  opacity: 1;
}

/* ── Sidebars ── */
.sidebar {
  min-width: 0;
  overflow-y: auto;
  overflow-x: hidden;
  background: #151922;
}
.sidebar.left {
  border-right: 1px solid var(--border);
  padding: 8px;
}
.sidebar.right {
  border-left: 1px solid var(--border);
  padding: 8px 10px;
}

/* Collapsed state */
#app.left-collapsed {
  --left-w: 0px;
}
#app.left-collapsed .sidebar.left {
  padding: 0;
  overflow: hidden;
  border-right: none;
}
#app.right-collapsed {
  --right-w: 0px;
}
#app.right-collapsed .sidebar.right {
  padding: 0;
  overflow: hidden;
  border-left: none;
}

/* ── Left sidebar tabs ── */
.tabs {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}
.tabs button {
  text-align: left;
  width: 100%;
}
.tabs button.active {
  color: var(--teal);
  border-color: var(--teal);
}

.tab-content {
  display: none;
  flex-direction: column;
  gap: 6px;
}
.tab-content.active {
  display: flex;
}

/* Full-width search inputs at top of panel tabs */
.panel-search {
  width: 100%;
}

/* ── Right sidebar (Inspector) ── */
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 6px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.panel-title {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Collapsible inspector sections */
.inspector-section {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 4px;
  overflow: hidden;
}
.inspector-section > summary {
  list-style: none;
  padding: 7px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  background: #1a1e29;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}
.inspector-section > summary::-webkit-details-marker {
  display: none;
}
.inspector-section > summary::before {
  content: '›';
  font-size: 14px;
  line-height: 1;
  transition: transform 0.15s;
  color: var(--muted);
}
.inspector-section[open] > summary::before {
  transform: rotate(90deg);
}
.inspector-section:hover > summary {
  color: var(--text);
}
.section-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  background: #151922;
}

/* Two-column layout for paired inputs (X/Y, W/H) */
.prop-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.prop-row label input {
  width: 100%;
}

/* Full-width inputs inside section content */
.section-content label input:not([type="checkbox"]):not([type="range"]):not([type="color"]),
.section-content label select {
  width: 100%;
}

/* Buttons inside right panel */
.section-content button {
  width: 100%;
  margin-top: 2px;
}
.section-content .row.wrap {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}
.section-content .row.wrap button {
  width: 100%;
}

/* Delete button at the bottom of the right panel */
.sidebar.right > #delete-selected {
  width: 100%;
  margin-top: 8px;
}

/* ── Canvas ── */
.canvas-wrap {
  display: grid;
  place-items: center;
  overflow: auto;
  padding: 24px;
  position: relative;
  z-index: 1;
}
.zoom-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #1a1e29;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 8px;
}
.zoom-controls button {
  padding: 2px 8px;
  font-size: 15px;
  line-height: 1;
}
#zoom-level {
  font-size: 11px;
  color: var(--muted);
  min-width: 40px;
  text-align: center;
}
.canvas {
  position: relative;
  background: #fff;
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.45);
}

/* ── Canvas elements ── */
.el {
  position: absolute;
  user-select: none;
  cursor: move;
  transform-origin: center center;
}
.el.selected {
  outline: 1px solid var(--teal);
}
.handle {
  position: absolute;
  width: 12px;
  height: 12px;
  right: -6px;
  bottom: -6px;
  border-radius: 50%;
  background: var(--teal);
  cursor: nwse-resize;
}

/* ── Asset grids ── */
.asset-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}
.asset-btn {
  padding: 8px;
  min-height: 70px;
}
.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 4px 0;
}
.swatch {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.swatch-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
}
.logo-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 4px 0;
}
.logo-row img {
  width: 46px;
  height: 46px;
  object-fit: contain;
  background: #fff;
  border-radius: 6px;
  border: 1px solid var(--border);
  cursor: pointer;
}

/* ── Utility ── */
.row {
  display: flex;
  gap: 6px;
  align-items: center;
}
.row.wrap {
  flex-wrap: wrap;
}
.empty {
  color: var(--muted);
  font-style: italic;
}

/* ── Auth dialog ── */
dialog {
  border: 1px solid var(--border);
  background: #1c2028;
  color: var(--text);
  border-radius: 12px;
}
dialog input {
  width: 100%;
  margin-bottom: 6px;
}
.dialog-actions {
  display: flex;
  gap: 6px;
  margin: 8px 0;
}

@media (max-width: 1200px) {
  #app {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto 1fr auto auto;
  }
  .sidebar {
    border: 0;
    border-top: 1px solid var(--border);
  }
  .panel-handle {
    display: none;
  }
}