/* ═══════════════════════════════════════════════════════════════
   AncStudio Design Editor — design-editor.css
   Full-page canvas-based customizer UI
═══════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --de-topbar-h: 56px;
  --de-toolbar-w: 72px;
  --de-props-w: 272px;
  --de-bg: #e8ecf0;
  --de-topbar-bg: #ffffff;
  --de-toolbar-bg: #1e293b;
  --de-toolbar-hover: #334155;
  --de-toolbar-active: #3b82f6;
  --de-props-bg: #ffffff;
  --de-props-border: #e2e8f0;
  --de-accent: #3b82f6;
  --de-accent-hover: #2563eb;
  --de-danger: #ef4444;
  --de-text: #1e293b;
  --de-muted: #64748b;
  --de-radius: 8px;
  --de-shadow: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --de-shadow-lg: 0 4px 16px rgba(0,0,0,.15);
}

/* ── Body ─────────────────────────────────────────────────────── */
.de-body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 13px;
  color: var(--de-text);
  background: var(--de-bg);
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── No-area fallback ─────────────────────────────────────────── */
.de-noarea {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100dvh;
  gap: 12px;
  color: var(--de-muted);
}
.de-noarea i { font-size: 48px; color: #f59e0b; }
.de-btn-back-large {
  margin-top: 8px;
  padding: 10px 24px;
  background: var(--de-accent);
  color: #fff;
  border-radius: var(--de-radius);
  text-decoration: none;
  font-weight: 600;
}

/* ── Top Bar ──────────────────────────────────────────────────── */
.de-topbar {
  height: var(--de-topbar-h);
  min-height: var(--de-topbar-h);
  background: var(--de-topbar-bg);
  border-bottom: 1px solid var(--de-props-border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  box-shadow: var(--de-shadow);
  z-index: 100;
  flex-shrink: 0;
}

.de-topbar-left,
.de-topbar-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
}

.de-topbar-center {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.de-product-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--de-text);
  margin-left: 8px;
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* icon buttons (undo/redo/back) */
.de-btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  border-radius: 6px;
  color: var(--de-text);
  cursor: pointer;
  font-size: 18px;
  text-decoration: none;
  transition: background .15s;
}
.de-btn-icon:hover { background: #f1f5f9; }
.de-btn-icon:disabled { opacity: .35; cursor: not-allowed; }

.de-vsep {
  width: 1px;
  height: 24px;
  background: var(--de-props-border);
  margin: 0 4px;
}

/* Area tabs */
.de-area-tabs {
  display: flex;
  gap: 2px;
  background: #f1f5f9;
  border-radius: 8px;
  padding: 3px;
}

.de-area-tab {
  padding: 5px 16px;
  border: none;
  background: transparent;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--de-muted);
  cursor: pointer;
  transition: all .15s;
}
.de-area-tab:hover { color: var(--de-text); }
.de-area-tab.active {
  background: #fff;
  color: var(--de-accent);
  box-shadow: var(--de-shadow);
}

.de-area-single-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--de-muted);
}

/* Save button */
.de-save-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: var(--de-accent);
  color: #fff;
  border: none;
  border-radius: var(--de-radius);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
  white-space: nowrap;
}
.de-save-btn:hover { background: var(--de-accent-hover); }
.de-save-btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── Editor Body ──────────────────────────────────────────────── */
.de-editor-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* ── Left Toolbar ─────────────────────────────────────────────── */
.de-toolbar {
  width: var(--de-toolbar-w);
  min-width: var(--de-toolbar-w);
  background: var(--de-toolbar-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  gap: 2px;
  overflow-y: auto;
  flex-shrink: 0;
}

.de-tool {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: none;
  background: transparent;
  border-radius: var(--de-radius);
  color: #94a3b8;
  cursor: pointer;
  font-size: 20px;
  gap: 3px;
  transition: all .15s;
}
.de-tool span { font-size: 10px; }
.de-tool:hover { background: var(--de-toolbar-hover); color: #fff; }
.de-tool.active { background: var(--de-toolbar-active); color: #fff; }
.de-tool:disabled { opacity: .3; cursor: not-allowed; }
.de-tool-del { color: #f87171; }
.de-tool-del:hover { background: rgba(239,68,68,.15); color: #fca5a5; }

.de-tool-sep {
  width: 32px;
  height: 1px;
  background: #334155;
  margin: 6px 0;
}

.de-hidden { display: none !important; }

/* ── Canvas Area ──────────────────────────────────────────────── */
.de-canvas-wrap {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 32px;
  position: relative;
}

.de-canvas-scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.de-canvas-stage {
  position: relative;
  border-radius: 10px;
  box-shadow: var(--de-shadow-lg), 0 0 0 1px rgba(0,0,0,.08);
  background: #fff;
  overflow: hidden;
  transition: box-shadow .2s;
}
.de-canvas-stage:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,.18), 0 0 0 1px rgba(0,0,0,.08);
}

.de-canvas-stage canvas {
  display: block;
}

.de-print-zone-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(59,130,246,.1);
  border: 1px solid rgba(59,130,246,.3);
  color: var(--de-accent);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: .3px;
}

/* ── Right Properties Panel ───────────────────────────────────── */
.de-props {
  width: var(--de-props-w);
  min-width: var(--de-props-w);
  background: var(--de-props-bg);
  border-left: 1px solid var(--de-props-border);
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 0;
  flex-shrink: 0;
}

.de-props-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--de-muted);
  padding: 40px 16px;
  gap: 12px;
  height: 100%;
}
.de-props-empty i { font-size: 36px; }
.de-props-empty p { font-size: 12px; line-height: 1.6; }

.de-props-block {
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--de-props-border);
}
.de-props-block:last-child { border-bottom: none; margin-bottom: 0; }

.de-props-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--de-muted);
  margin-bottom: 10px;
}

/* Labels */
.de-lbl {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--de-muted);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.de-lbl.mt-2 { margin-top: 12px; }
.de-lbl.mt-3 { margin-top: 16px; }

/* Select */
.de-sel {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--de-props-border);
  border-radius: 6px;
  font-size: 13px;
  color: var(--de-text);
  background: #fff;
  appearance: auto;
  cursor: pointer;
}
.de-sel:focus { outline: 2px solid var(--de-accent); outline-offset: -1px; }

/* Range + badge */
.de-range-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.de-range {
  flex: 1;
  accent-color: var(--de-accent);
  cursor: pointer;
  height: 4px;
}
.de-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--de-accent);
  background: #eff6ff;
  border-radius: 4px;
  padding: 2px 6px;
  min-width: 36px;
  text-align: center;
  white-space: nowrap;
}

/* Style button row (bold/italic/align) */
.de-btn-row {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.de-style-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  border: 1px solid var(--de-props-border);
  border-radius: 6px;
  background: #fff;
  color: var(--de-text);
  font-size: 14px;
  cursor: pointer;
  transition: all .12s;
  white-space: nowrap;
}
.de-style-btn:hover { background: #f8fafc; border-color: var(--de-accent); color: var(--de-accent); }
.de-style-btn.active { background: #eff6ff; border-color: var(--de-accent); color: var(--de-accent); }

/* Color row */
.de-color-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.de-color-pick {
  width: 36px;
  height: 36px;
  padding: 2px;
  border: 2px solid var(--de-props-border);
  border-radius: 8px;
  cursor: pointer;
  background: none;
  flex-shrink: 0;
}
.de-color-pick::-webkit-color-swatch-wrapper { padding: 0; border-radius: 6px; }
.de-color-pick::-webkit-color-swatch { border: none; border-radius: 5px; }
.de-color-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--de-muted);
  font-family: 'Courier New', monospace;
}
.de-check-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--de-muted);
  cursor: pointer;
  white-space: nowrap;
}
.ms-auto { margin-left: auto; }

/* XYWH grid */
.de-xywh-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.de-xywh-cell {
  display: flex;
  align-items: center;
  border: 1px solid var(--de-props-border);
  border-radius: 6px;
  overflow: hidden;
}
.de-xywh-lbl {
  padding: 0 7px;
  font-size: 11px;
  font-weight: 700;
  color: var(--de-muted);
  background: #f8fafc;
  border-right: 1px solid var(--de-props-border);
  align-self: stretch;
  display: flex;
  align-items: center;
}
.de-num {
  flex: 1;
  border: none;
  padding: 6px 6px;
  font-size: 12px;
  color: var(--de-text);
  width: 100%;
  min-width: 0;
}
.de-num:focus { outline: none; background: #eff6ff; }

/* Delete button */
.de-del-btn {
  width: 100%;
  padding: 9px;
  background: #fff0f0;
  border: 1px solid #fecaca;
  border-radius: var(--de-radius);
  color: var(--de-danger);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.de-del-btn:hover { background: var(--de-danger); color: #fff; border-color: var(--de-danger); }

/* ── Toast notification ───────────────────────────────────────── */
.de-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 12px 24px;
  border-radius: var(--de-radius);
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  z-index: 9999;
  opacity: 0;
  transition: all .25s;
  box-shadow: var(--de-shadow-lg);
  white-space: nowrap;
}
.de-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.de-toast-success { background: #22c55e; }
.de-toast-danger  { background: var(--de-danger); }
.de-toast-info    { background: var(--de-accent); }

/* ── Print zone overlay animation ────────────────────────────── */
@keyframes de-dash-march {
  to { stroke-dashoffset: -20; }
}

/* ── Scrollbar styling ────────────────────────────────────────── */
.de-canvas-wrap::-webkit-scrollbar,
.de-props::-webkit-scrollbar { width: 6px; height: 6px; }
.de-canvas-wrap::-webkit-scrollbar-track,
.de-props::-webkit-scrollbar-track { background: transparent; }
.de-canvas-wrap::-webkit-scrollbar-thumb,
.de-props::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

/* ── Responsive (tablet) ──────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --de-props-w: 220px; --de-toolbar-w: 58px; }
  .de-product-name { max-width: 140px; }
  .de-save-btn span { display: none; }
  .de-canvas-wrap { padding: 16px; }
}

/* ── Mobile: toolbar moves to bottom, props hidden ────────────── */
@media (max-width: 640px) {
  .de-body { overflow: hidden; }

  .de-topbar { padding: 0 8px; gap: 4px; }
  .de-product-name { display: none; }
  .de-area-tabs { overflow-x: auto; max-width: 160px; }
  .de-vsep { display: none; }

  .de-editor-body { flex-direction: column; }

  /* Toolbar: horizontal strip at bottom */
  .de-toolbar {
    order: 3;
    width: 100%;
    min-width: 0;
    height: 58px;
    min-height: 58px;
    flex-direction: row;
    justify-content: center;
    padding: 0 8px;
    overflow-x: auto;
    gap: 4px;
  }
  .de-tool {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
  }
  .de-tool-sep {
    width: 1px;
    height: 28px;
    margin: 0 2px;
  }

  /* Canvas: full width, flexible height */
  .de-canvas-wrap {
    order: 1;
    flex: 1;
    padding: 12px 8px;
    overflow: auto;
  }

  /* Props panel: hidden on mobile */
  .de-props { display: none; }

  .de-canvas-scroll { gap: 8px; }
}