:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --border: #334155;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent2: #22c55e;
  --thumb-bg: #f8fafc;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
}

.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.6rem 1rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.topbar a { color: var(--accent); text-decoration: none; }
.topbar a:hover { text-decoration: underline; }

.tabs { display: flex; gap: 0.5rem; }
.tab {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  cursor: pointer;
}
.tab.active { background: var(--accent); border-color: var(--accent); }

.workspace { display: flex; flex: 1; min-height: 0; }
.panel {
  width: 320px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.panel-right {
  border-right: none;
  border-left: 1px solid var(--border);
  width: 260px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0.75rem 0 1rem;
  gap: 0.5rem;
}

.panel h2 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0;
}

.view-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 5px;
  overflow: hidden;
}
.view-btn {
  font-size: 0.68rem;
  padding: 0.2rem 0.45rem;
  border: none;
  background: #0f172a;
  color: var(--muted);
  cursor: pointer;
}
.resize-mode-controls {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  padding: 0.5rem 0.75rem 0;
}

.resize-mode-hint {
  font-size: 0.72rem;
  color: var(--muted);
  padding: 0.35rem 0.75rem 0;
  margin: 0;
  line-height: 1.35;
}

.resize-mode-hint.hidden {
  display: none;
}

.resize-mode-controls.hidden {
  display: none;
}

.resize-mode-label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.resize-mode-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}

.resize-mode-btn:hover {
  border-color: var(--accent);
}

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

.view-btn.active {
  background: var(--accent);
  color: white;
}

.cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
}
.cat-tab {
  font-size: 0.72rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: #0f172a;
  color: var(--muted);
  cursor: pointer;
}
.cat-tab.active { color: var(--text); border-color: var(--accent); }

.asset-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.25rem 0.75rem 1rem;
}

/* List mode — name left, thumbnail right */
.asset-list.list-mode {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.asset-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0f172a;
  color: var(--text);
  cursor: pointer;
  text-align: left;
}
.asset-row:hover { border-color: var(--accent); }
.asset-row.active { border-color: var(--accent2); background: rgba(34, 197, 94, 0.12); }

.asset-name {
  font-size: 0.82rem;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.asset-thumb {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 4px;
  background: var(--thumb-bg);
  border: 1px solid #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
}
.asset-thumb img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* Gallery mode */
.asset-list.gallery-mode {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.asset-list.gallery-mode .asset-row {
  flex-direction: column;
  align-items: stretch;
  padding: 0.5rem;
}
.asset-list.gallery-mode .asset-name {
  order: 2;
  text-align: center;
  font-size: 0.75rem;
  margin-top: 0.35rem;
}
.asset-list.gallery-mode .asset-thumb {
  order: 1;
  width: 100%;
  height: 88px;
}

.canvas-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #020617;
  min-width: 0;
  padding: 1rem;
}

.canvas-stage-wrap {
  position: relative;
  flex-shrink: 0;
}

#stage-container {
  border: 2px solid var(--border);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  line-height: 0;
}

#stage-container canvas {
  display: block;
}

.draw-toolbox {
  position: absolute;
  left: 8px;
  bottom: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
  padding: 0.35rem 0.45rem;
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: calc(100% - 16px);
  z-index: 2;
}

.draw-toolbox-label {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-right: 0.15rem;
}

.draw-tool {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: #0f172a;
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}
.draw-tool:hover { border-color: var(--accent); }
.draw-tool.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.curve-control {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.68rem;
  color: var(--muted);
  margin-left: 0.15rem;
}
.curve-control.hidden { display: none; }
.curve-control input[type="range"] { width: 72px; }

.draw-ctrl {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.68rem;
  color: var(--muted);
}
.draw-ctrl select {
  font-size: 0.68rem;
  padding: 0.15rem 0.2rem;
  max-width: 3.5rem;
}
.draw-ctrl input[type="color"] {
  width: 28px;
  height: 22px;
}

.banner-bold-label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.banner-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(15, 23, 42, 0.6);
}
.banner-controls.hidden { display: none; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
  align-items: center;
  justify-content: center;
}

.toolbar label { font-size: 0.75rem; color: var(--muted); display: flex; align-items: center; gap: 0.35rem; }

.btn {
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: white; }
.btn-success { background: var(--accent2); color: white; }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }

.layer-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 0.75rem;
}
.layer-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-bottom: 0.35rem;
  font-size: 0.8rem;
  cursor: pointer;
}
.layer-item.selected { border-color: var(--accent); background: rgba(59,130,246,0.15); }
.layer-item.shape-layer { border-left: 3px solid var(--accent2); }
.layer-item button {
  background: transparent;
  border: none;
  color: #f87171;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

.history-section {
  border-top: 1px solid var(--border);
  padding-top: 0.5rem;
  margin-top: 0.25rem;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  max-height: 220px;
  overflow-y: auto;
}

.history-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0f172a;
  cursor: pointer;
  text-align: left;
}
.history-item:hover { border-color: var(--accent); }

.history-thumb {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 4px;
  background: var(--thumb-bg);
  border: 1px solid #cbd5e1;
  object-fit: contain;
}

.history-meta {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.history-name {
  font-size: 0.78rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-time {
  font-size: 0.65rem;
  color: var(--muted);
}

.hint { font-size: 0.75rem; color: var(--muted); padding: 0 1rem 0.75rem; line-height: 1.4; }

.tactical-view { display: none; flex: 1; flex-direction: column; min-height: 0; }
.tactical-view.active { display: flex; }
.compose-view { display: flex; flex: 1; min-height: 0; }
.compose-view.hidden { display: none; }

.mass-view {
  display: flex;
  flex: 1;
  min-height: 0;
}
.mass-view.hidden { display: none; }

.mass-layout {
  display: flex;
  flex: 1;
  min-height: 0;
  width: 100%;
}

.mass-panel {
  width: 340px;
  padding: 0.75rem 1rem;
  overflow-y: auto;
}

.mass-panel h2 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.mass-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.mass-field select,
.mass-field input[type="color"] {
  align-self: flex-start;
}

.mass-export-btn {
  width: 100%;
  margin-top: 0.25rem;
}

.mass-preview-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #020617;
  padding: 1.5rem;
  min-width: 0;
}

.mass-preview-wrap h2 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 0.35rem;
}

.mass-preview-box {
  margin-top: 1rem;
  padding: 1rem;
  background: #ffffff;
  border: 2px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.mass-preview-box img {
  display: block;
  width: 256px;
  height: 256px;
  image-rendering: pixelated;
}

.tactical-grid {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}

.tactical-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  background: var(--panel);
  text-align: center;
}
.tactical-card .tactical-thumb {
  height: 100px;
  background: var(--thumb-bg);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
}
.tactical-card img { max-width: 100%; max-height: 100%; object-fit: contain; }
.tactical-card p { font-size: 0.8rem; margin: 0.5rem 0; }
.tactical-card button { width: 100%; }

input[type="color"] { width: 36px; height: 28px; border: none; padding: 0; background: none; cursor: pointer; }
input[type="text"], select {
  background: #0f172a;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 0.35rem 0.5rem;
}