:root {
  --bg: #f3faf4;
  --panel: #ffffff;
  --ink: #1a2e1f;
  --muted: #5a7260;
  --line: #cfe8d4;
  --green: #2f9e44;
  --green-dark: #237a34;
  --green-soft: #e6f6ea;
  --accent: #7bc96f;
  --shadow: 0 10px 30px rgba(35, 90, 50, 0.08);
  --radius: 16px;
  font-family: "Noto Sans TC", "PingFang HK", "Microsoft JhengHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html {
  /* Compact sticky preview (~130px) + a little air */
  scroll-padding-top: 9rem;
}
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(900px 400px at 10% -10%, #dff7e4 0%, transparent 55%),
    radial-gradient(700px 360px at 100% 0%, #fff6d8 0%, transparent 50%),
    var(--bg);
  min-height: 100vh;
}

.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(8px);
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 36px; height: 36px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(145deg, var(--accent), var(--green));
  color: white; font-size: 14px;
}
.brand strong { display: block; font-size: 1.05rem; }
.tag { color: var(--muted); font-size: 0.85rem; }
.hint { margin: 0; color: var(--muted); font-size: 0.9rem; }
.usage-wrap .hint { margin: 0; font-size: 0.8rem; }

/* Desktop side rails + main; rails hidden on narrow screens */
.page-with-rails {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: start;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 12px 24px;
  box-sizing: border-box;
}
.ad-rail {
  display: none;
  justify-content: center;
  padding-top: 24px;
  position: static;
}
.ad-slot--rail {
  width: 120px;
  min-height: 600px;
  height: 600px;
  max-width: 160px;
}
@media (min-width: 1200px) {
  .page-with-rails {
    grid-template-columns: 120px minmax(0, 1fr) 120px;
    padding: 0 16px 24px;
  }
  .ad-rail {
    display: flex;
  }
}

.layout {
  display: grid;
  /* Mobile-first: sticky preview on top, controls + usage scroll below */
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "preview"
    "controls"
    "adabove"
    "usage"
    "adbelow";
  gap: 16px;
  padding: 12px 0 0;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  min-width: 0;
  box-sizing: border-box;
}
.controls { grid-area: controls; min-width: 0; }
.preview-wrap[hidden] {
  display: none !important;
}
.controls,
.usage-wrap {
  scroll-margin-top: 9rem;
}
.preview-wrap {
  grid-area: preview;
  min-width: 0;
  position: sticky;
  top: 0;
  /* Above .panel (20) and bottom sticky ad (10); below modals */
  z-index: 40;
  /* Usable sticky height: fill width, leave room to scroll controls */
  max-height: min(72vh, 860px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding-bottom: 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 20px rgba(35, 90, 50, 0.1);
  transition: max-width 0.22s ease, width 0.22s ease, padding 0.22s ease, box-shadow 0.22s ease, margin 0.22s ease;
}
/* Scrolled/shrunk: full-width sticky TOP bar; preview image ~12.5% LEFT (not centered strip) */
.preview-wrap {
  overflow-anchor: none;
}
.preview-wrap.is-compact:not(.is-fullscreen) {
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0;
  margin-left: 0 !important;
  margin-right: 0 !important;
  max-height: none;
  padding: 8px 10px;
  box-shadow: 0 4px 12px rgba(35, 90, 50, 0.12);
  border-radius: 0 0 12px 12px;
  /* Sticky bar: reserved thumb column + actions column — never overlap */
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  column-gap: 10px;
  row-gap: 6px;
  /* Let taps through empty sticky chrome; buttons/canvas re-enable below */
  pointer-events: none;
}
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head,
.preview-wrap.is-compact:not(.is-fullscreen) .preview-body,
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head__left,
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head__primary,
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head__corners,
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head__actions button,
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head__actions .export-menu,
.preview-wrap.is-compact:not(.is-fullscreen) .btn-preview-restore,
.preview-wrap.is-compact:not(.is-fullscreen) .canvas-box,
.preview-wrap.is-compact:not(.is-fullscreen) #preview {
  pointer-events: auto;
}
.preview-wrap.is-compact:not(.is-fullscreen) .preview-compare-hint,
.preview-wrap.is-compact:not(.is-fullscreen) .meta {
  display: none;
}
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  align-self: center;
  justify-content: flex-end;
  gap: 6px;
  margin-bottom: 0;
  min-width: 0;
  width: 100%;
  position: relative;
  z-index: 1;
}
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head__actions {
  width: 100%;
  justify-content: space-between;
  flex-wrap: nowrap;
  align-items: stretch;
  margin-left: 0;
  flex: 1 1 auto;
  min-width: 0;
  gap: 8px;
}
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head__actions button,
.preview-wrap.is-compact:not(.is-fullscreen) .preview-head__actions .btn-export,
.preview-wrap.is-compact:not(.is-fullscreen) .btn-preview-restore {
  padding: 4px 9px;
  font-size: 0.72rem;
}
/* 放大 when compact; 縮小 when user-expanded; lives in horizontal actions row */
.preview-wrap .btn-preview-restore {
  display: none;
}
.preview-wrap.is-compact:not(.is-fullscreen) .btn-preview-restore,
.preview-wrap.is-user-expanded:not(.is-fullscreen):not(.is-compact) .btn-preview-restore {
  display: inline-flex;
  align-items: center;
}
.preview-wrap .preview-size-actions {
  display: none;
}
.color-templates {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 10px 0 4px;
}
.color-templates__label {
  font-size: 0.85rem;
  font-weight: 600;
}
.color-templates__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.btn-color-template {
  appearance: none;
  border: 1px solid var(--border, #ccc);
  background: var(--panel, #fff);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.85rem;
  cursor: pointer;
}
.btn-color-template[aria-pressed="true"],
.btn-color-template.is-active {
  border-color: var(--accent, #5b6cff);
  background: color-mix(in srgb, var(--accent, #5b6cff) 16%, transparent);
  font-weight: 600;
}
/* Left-docked thumbnail: reserved grid column; never overlaps action chips */
.preview-wrap.is-compact:not(.is-fullscreen) .preview-body {
  grid-column: 1;
  grid-row: 1;
  flex: 0 0 auto;
  width: clamp(56px, 12.5vw, 88px);
  min-width: 56px;
  max-width: 88px;
  overflow: hidden;
  min-height: 0;
  align-self: center;
  position: relative;
  z-index: 0;
}
.preview-wrap.is-compact:not(.is-fullscreen) .canvas-box {
  flex: 0 0 auto !important;
  width: 100%;
  min-height: 0 !important;
  max-height: none !important;
  overflow: hidden;
  align-self: flex-start;
}
.preview-wrap.is-compact:not(.is-fullscreen) .canvas-box #preview {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0;
}
.preview-wrap.is-compact:not(.is-fullscreen) .preview-body .canvas-box {
  flex: 0 0 auto !important;
}
.preview-wrap .preview-head__actions button:not([role="menuitem"]),
.preview-wrap .preview-head__actions .btn-export,
.preview-wrap .btn-preview-restore {
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 12px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.82rem;
  line-height: 1.25;
  white-space: nowrap;
  flex: 0 0 auto;
}
.preview-wrap .preview-head__actions button:not([role="menuitem"]):disabled,
.preview-wrap .preview-head__actions .btn-export:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.preview-wrap .preview-head__actions button:not([role="menuitem"]).is-active,
.preview-wrap .preview-head__actions .btn-export[aria-expanded="true"],
.preview-wrap .btn-preview-restore:hover {
  background: var(--green-soft);
  border-color: var(--green);
  color: var(--green-dark);
}
/* Paint tools */
.paint-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.paint-tools button.is-active {
  background: var(--green-soft);
  border-color: var(--green);
  color: var(--green-dark);
  font-weight: 600;
}
.paint-color-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
#paintColorSwatch {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  border: 1px solid var(--line);
}
.canvas-box.paint-mode { cursor: crosshair; touch-action: none; }

.preview-wrap .canvas-box {
  flex: 1 1 auto;
  min-height: 180px;
  max-height: none;
  overflow: auto;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  -webkit-overflow-scrolling: touch;
}
.preview-wrap .canvas-box #preview {
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}
.preview-wrap .preview-head {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  margin-bottom: 6px;
  min-width: 0;
}
.preview-head__actions {
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
  justify-content: space-between;
  gap: 8px;
  margin-left: auto;
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
}
/* Top row (L→R): 顯示原圖 | 再裁一次 | 匯出 — denser horizontal, not tall stacks */
.preview-head__left {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  flex: 1 1 auto;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  min-width: 0;
}
.preview-head__left .btn-show-original {
  width: auto;
  justify-content: center;
  white-space: nowrap;
}
/* Same top row: 再裁一次 then 匯出 */
.preview-head__primary {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  flex: 0 0 auto;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  min-width: 0;
}
.preview-head__primary > #btnRecrop,
.preview-head__primary > .export-menu {
  width: auto;
}
.preview-head__primary .btn-export {
  width: auto;
  justify-content: center;
}
.preview-head__primary .export-menu {
  display: inline-flex;
  width: auto;
}
/* Right: 拼豆模式 on top · 放大/縮小 directly under it (column stack) */
.preview-head__corners {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  align-items: stretch;
  align-self: flex-start;
  justify-content: flex-start;
  gap: 6px;
  min-width: 0;
  margin-left: auto;
}
.preview-head__corners .btn-fullscreen,
.preview-head__corners .btn-preview-restore {
  width: 100%;
  justify-content: center;
  white-space: nowrap;
}
/* User-expanded (縮小 shown): denser top-row chips; keep 放大 under 拼豆.
   Enlarged preview image ≤ ~50vh (phone). Scoped off fullscreen.
   Tighter white card chrome (less panel padding around actions + grid). */
.preview-wrap.is-user-expanded:not(.is-fullscreen) {
  padding: 8px 10px 6px;
  padding-bottom: 6px;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head {
  margin-bottom: 2px;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) > .preview-dim,
.preview-wrap.is-user-expanded:not(.is-fullscreen) > #dimLabel {
  margin: 0 0 4px;
  font-size: 0.8rem;
  line-height: 1.2;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__actions {
  flex-wrap: nowrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 6px;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__left,
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__primary {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  align-self: center;
  justify-content: flex-start;
  gap: 6px;
}
/* Keep corners column: 拼豆模式 → 縮小 underneath */
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__corners {
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: stretch;
  align-self: flex-start;
  justify-content: flex-start;
  gap: 6px;
  margin-left: auto;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__left .btn-show-original,
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__primary > #btnRecrop,
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__primary > .export-menu,
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__primary .btn-export {
  width: auto;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__corners .btn-fullscreen,
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__corners .btn-preview-restore {
  width: 100%;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__primary .export-menu {
  display: inline-flex;
  width: auto;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__actions button:not([role="menuitem"]),
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-head__actions .btn-export,
.preview-wrap.is-user-expanded:not(.is-fullscreen) .btn-preview-restore {
  min-height: 34px;
  box-sizing: border-box;
  padding: 4px 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
/* Enlarged sticky preview: image/canvas area ≤ half phone viewport */
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-body {
  flex: 0 1 auto;
  min-height: 0;
  max-height: 50vh;
  overflow: hidden;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) .preview-body .canvas-box {
  flex: 0 1 auto !important;
  min-height: 0 !important;
  max-height: 50vh;
  overflow: auto;
  align-items: center;
  justify-content: center;
}
.preview-wrap.is-user-expanded:not(.is-fullscreen) .canvas-box #preview {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 50vh;
  object-fit: contain;
  margin: 0 auto;
}
.preview-wrap .meta,
.preview-wrap .preview-compare-hint { flex: 0 0 auto; margin-top: 6px; }
/* Size label lives above the grid (between actions and canvas) */
.preview-wrap > .preview-dim,
.preview-wrap > #dimLabel {
  flex: 0 0 auto;
  margin: 0 0 4px;
  margin-top: 0;
  order: 0;
}
.usage-wrap { grid-area: usage; min-width: 0; }
.ad-slot-wrap--above { grid-area: adabove; }
.ad-slot-wrap--below { grid-area: adbelow; }
@media (min-width: 900px) {
  .layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
    grid-template-areas:
      "preview preview"
      "controls usage"
      "adabove adabove"
      "adbelow adbelow";
    gap: 20px;
    padding: 16px 0 0;
  }
  .preview-wrap {
    max-height: min(75vh, 920px);
  }
  .preview-wrap.is-compact:not(.is-fullscreen) {
    width: 100% !important;
    max-width: 100% !important;
  }
}

/* Fullscreen preview overlay (above sticky ads) */
.preview-wrap.is-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 1200;
  max-height: none;
  height: 100%;
  width: 100%;
  max-width: none;
  margin: 0;
  border-radius: 0;
  border: none;
  box-shadow: none;
  padding: 12px 12px calc(12px + env(safe-area-inset-bottom, 0px));
  background: #0f1a12;
  color: #e8f5ea;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-sizing: border-box;
}
.preview-wrap.is-fullscreen .preview-head {
  flex: 0 0 auto;
}
.preview-wrap.is-fullscreen .preview-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}
.preview-wrap.is-fullscreen .meta,
.preview-wrap.is-fullscreen .hint {
  color: #e8f5ea;
}
.preview-wrap.is-fullscreen .canvas-box {
  flex: 1 1 auto;
  min-height: 0;
  max-height: none;
  border-color: rgba(255,255,255,0.15);
  background-color: #1a2a1e;
  /* Grid sits top; usage dock below replaces empty checkerboard */
  display: flex;
  align-items: flex-start;
  justify-content: center;
}
.preview-wrap.is-fullscreen .canvas-box #preview {
  margin: 0 auto;
}
.preview-wrap.is-fullscreen .btn-show-original,
.preview-wrap.is-fullscreen .btn-fullscreen,
.preview-wrap.is-fullscreen .btn-export,
.preview-wrap.is-fullscreen .preview-head__actions button:not([role="menuitem"]) {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.35);
  color: #fff;
}
/* Bead colour chips docked into former checkerboard space */
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock {
  flex: 0 1 auto;
  width: 100%;
  max-height: min(38vh, 320px);
  min-height: 0;
  margin: 0;
  padding: 8px 10px;
  box-sizing: border-box;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  box-shadow: none;
  scroll-margin-top: 0;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .usage-toggle h2,
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .hint,
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .meta,
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock #usageTotal {
  color: #e8f5ea;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .usage-toggle {
  color: #e8f5ea;
  background: transparent;
  border: none;
  padding: 0;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .usage-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .usage-list {
  flex: 1 1 auto;
  min-height: 0;
  max-height: none;
  overflow: auto;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .usage-item {
  background: rgba(232, 245, 234, 0.12);
  border-color: rgba(255, 255, 255, 0.22);
  color: #e8f5ea;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .usage-item .count {
  color: rgba(232, 245, 234, 0.75);
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .usage-item.is-focus {
  background: rgba(255, 255, 255, 0.18);
  border-color: var(--green);
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .btn-clear-filter {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .btn-clear-completed {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock.is-collapsed {
  max-height: none;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock.is-collapsed .usage-body {
  display: none;
}
body.preview-fs-open {
  overflow: hidden;
}
body.preview-fs-open .ad-sticky-bottom {
  display: none !important;
}
.btn-fullscreen.is-active {
  background: var(--green-soft);
  border-color: var(--green);
  color: var(--green-dark);
  font-weight: 600;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  /* Above bottom sticky ad so placeholders never cover accordion controls.
     Do NOT set position here on all .panel — it overrides .preview-wrap sticky. */
  z-index: 20;
}
.panel:not(.preview-wrap) {
  position: relative;
}
.panel.preview-wrap {
  /* Re-assert sticky after .panel rules; fullscreen uses position:fixed below */
  position: sticky;
  top: 0;
  z-index: 40;
}
.panel.preview-wrap.is-fullscreen {
  position: fixed;
}

h1 { margin: 0 0 8px; font-size: 1.45rem; }
h2 { margin: 0 0 12px; font-size: 1.1rem; }
.lead { margin: 0 0 18px; color: var(--muted); line-height: 1.5; }

.upload-row {
  display: flex;
  align-items: stretch;
  gap: 10px;
  margin-bottom: 16px;
}
.upload {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 88px;
  min-width: 0;
  border: 2px dashed var(--green);
  border-radius: 12px;
  background: var(--green-soft);
  cursor: pointer;
  margin-bottom: 0;
  padding: 12px;
  text-align: center;
  font-weight: 600;
  color: var(--green-dark);
}
.upload input { display: none; }
.upload.drag { background: #d4f0db; }
.upload-sample {
  flex: 0 0 76px;
  width: 76px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 4px;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  color: var(--muted);
  font: inherit;
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.15;
  text-align: center;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.upload-sample:hover,
.upload-sample:focus-visible {
  border-color: var(--green);
  color: var(--green-dark);
  box-shadow: 0 0 0 2px rgba(46, 160, 90, 0.18);
  outline: none;
}
.upload-sample__thumb {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 8px;
  display: block;
  background: #f0f0f0;
}
.upload-sample__label {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.upload-drafts[hidden] { display: none !important; }
.upload-drafts:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}
.upload-drafts__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f3f8f5;
}
.upload-drafts__icon svg {
  display: block;
  width: 40px;
  height: 40px;
}

fieldset {
  border: 1px solid var(--line);
  border-radius: 12px;
  margin: 0 0 14px;
  padding: 12px 14px 14px;
}
legend { padding: 0 6px; font-weight: 600; font-size: 0.92rem; }
.size-row {
  display: grid;
  gap: 8px;
}
.size-row label, .check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}
.custom-row {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}
.custom-row input[type="number"] {
  width: 72px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
label { display: block; margin-top: 8px; font-size: 0.92rem; color: var(--muted); }
input[type="range"] { width: 100%; accent-color: var(--green); }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
  align-items: center;
  justify-content: flex-end;
}
#btnSaveSettings {
  margin-left: 0;
}
button {
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  border-radius: 999px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.primary {
  background: var(--green);
  border-color: var(--green);
  color: white;
}
button.primary:hover:not(:disabled) { background: var(--green-dark); }

.meta { color: var(--muted); font-size: 0.88rem; margin: 12px 0 0; line-height: 1.45; }

.canvas-box {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background:
    linear-gradient(45deg, #eee 25%, transparent 25%),
    linear-gradient(-45deg, #eee 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #eee 75%),
    linear-gradient(-45deg, transparent 75%, #eee 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-color: #fafafa;
  max-height: 70vh;
}
#preview {
  display: block;
  max-width: 100%;
  height: auto;
  image-rendering: pixelated;
}

.usage-list {
  max-height: 48vh;
  overflow: auto;
  /* denser chips: 4 per row, tighter gaps */
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2px;
  -webkit-overflow-scrolling: touch;
}
.usage-item {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 3px;
  padding: 2px 4px;
  border-radius: 4px;
  background: var(--green-soft);
  border: 1px solid var(--line);
  width: 100%;
  min-width: 0;
  text-align: left;
  font-family: inherit;
  font-size: 0.65rem;
  font-weight: 500;
  line-height: 1.15;
  color: inherit;
  cursor: pointer;
  min-height: 22px;
  box-sizing: border-box;
}
.usage-item:hover {
  border-color: var(--green);
}
.usage-item.is-focus {
  background: #fff;
  border-color: var(--green);
  box-shadow: 0 0 0 1px rgba(47, 158, 68, 0.4);
}
.swatch {
  width: 10px; height: 10px; border-radius: 2px;
  border: 1px solid rgba(0,0,0,0.12);
  flex-shrink: 0;
}
.usage-item .code {
  font-weight: 700;
  font-size: 0.62rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.usage-item .count { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 0.6rem; }

/* 標示位置 (highlight): 3 fluid columns, finger-sized chips (~53px); filter stays denser */
body.focus-highlight .usage-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 5px;
  width: 100%;
}
body.focus-highlight .usage-item {
  grid-template-columns: 17px minmax(0, 1fr) auto auto;
  gap: 6px;
  padding: 10px 7px;
  min-height: 53px;
  border-radius: 7px;
  font-size: 0.8rem;
  line-height: 1.2;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}
body.focus-highlight .usage-item .swatch {
  width: 17px;
  height: 17px;
  border-radius: 4px;
}
body.focus-highlight .usage-item .code {
  font-size: 0.78rem;
}
body.focus-highlight .usage-item .count {
  font-size: 0.72rem;
}
body.focus-highlight .usage-item__mark {
  width: 26px;
  height: 26px;
  font-size: 0.85rem;
  border-radius: 5px;
}

@media (max-width: 360px) {
  .usage-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 900px) {
  .usage-list { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  /* Highlight mode stays 3 cols so labels fit; filter can be denser */
  body.focus-highlight .usage-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.empty { color: var(--muted); margin: 0; }

/* In-page ad placeholders (manual slots — no sticky/fixed intercept, no AdSense) */
.ad-slot-wrap {
  display: flex;
  justify-content: center;
  padding: 0;
  position: static;
}
.ad-slot-wrap--above { padding: 0; }
.ad-slot-wrap--below { padding: 0; }
.ad-slot-wrap--accordion {
  /* In-flow between accordions only — never fixed/absolute */
  margin: 10px 0 4px;
  padding: 0;
  position: static;
}
.ad-slot-wrap--accordion .ad-slot--small {
  /* Reserved 320×50; keep height fixed to avoid CLS */
  width: 100%;
  max-width: 320px;
  height: 50px;
  min-height: 50px;
  max-height: 50px;
}

/* Prod (pixelbeads.kitforu.com + legacy pixelbead.netlify.app): hide all ad placeholders until AdSense ready */
html.ads-off .ad-rail,
html.ads-off .ad-slot-wrap,
html.ads-off .ad-sticky-bottom {
  display: none !important;
}
html.ads-off .page-with-rails {
  grid-template-columns: 1fr !important;
}
html.ads-off body {
  padding-bottom: 0 !important;
}
.ad-slot {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border-radius: 8px;
  background: #e8e8e8;
  border: 1px solid #d0d0d0;
  color: #6a6a6a;
  font-size: 0.8rem;
  box-sizing: border-box;
  position: static;
}
.ad-slot--small {
  max-width: 320px;
  height: 50px;
  min-height: 50px;
}
.ad-slot--large {
  max-width: 300px;
  width: 300px;
  height: 250px;
  min-height: 250px;
}
@media (max-width: 360px) {
  .ad-slot--large {
    max-width: 100%;
    width: 100%;
    height: 250px;
  }
}
.ad-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #666;
}
.ad-slot--rail .ad-label {
  writing-mode: horizontal-tb;
}

/* Fixed sticky bottom ad bar */
.ad-sticky-bottom {
  /* True bottom bar (allowed); z below .panel so it never covers 整圖選項 / controls */
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 6px 8px calc(6px + env(safe-area-inset-bottom, 0px));
  background: rgba(232, 232, 232, 0.97);
  border-top: 1px solid #d0d0d0;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
  pointer-events: auto;
}
.ad-slot--sticky {
  width: 100%;
  max-width: 728px;
  height: 50px;
  min-height: 50px;
  border-radius: 6px;
  background: #e0e0e0;
  border: 1px solid #c8c8c8;
}
.ad-slot--sticky .ad-size::after {
  content: "320 × 50";
  font-size: 0.7rem;
  color: #888;
  font-variant-numeric: tabular-nums;
}
@media (min-width: 768px) {
  .ad-slot--sticky {
    height: 90px;
    min-height: 90px;
  }
  .ad-slot--sticky .ad-size::after {
    content: "728 × 90";
  }
}
/* Clear space so content is not hidden behind sticky bar */
body {
  padding-bottom: calc(62px + env(safe-area-inset-bottom, 0px));
}
@media (min-width: 768px) {
  body {
    padding-bottom: calc(102px + env(safe-area-inset-bottom, 0px));
  }
}
/* Hide sticky bar while crop modal is open */
body:has(#cropModal:not([hidden])) .ad-sticky-bottom,
body:has(#draftRestore:not([hidden])) .ad-sticky-bottom {
  display: none;
}

/* Language switch */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}
.lang-switch__label {
  white-space: nowrap;
}
.lang-switch select {
  font: inherit;
  font-weight: 600;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  background: #fff;
  cursor: pointer;
  min-height: 40px;
}


/* —— Crop modal —— */
.crop-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(20, 40, 28, 0.55);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}
.crop-modal[hidden] { display: none !important; }
@media (min-width: 720px) {
  .crop-modal { align-items: center; padding: 24px; }
}
.crop-sheet {
  width: 100%;
  max-width: 720px;
  max-height: min(96vh, 900px);
  background: var(--panel);
  border-radius: 20px 20px 0 0;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
@media (min-width: 720px) {
  .crop-sheet { border-radius: var(--radius); max-height: 90vh; }
}
.crop-head {
  padding: 16px 18px 8px;
}
.crop-head h2 { margin: 0 0 4px; font-size: 1.15rem; }
.crop-head .meta { margin: 0; }

.suggest-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 8px 16px 12px;
}
.suggest-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
  width: 100%;
}
@media (min-width: 520px) {
  .suggest-label { width: auto; margin-right: 4px; }
}
.suggest-btn {
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 12px;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.suggest-btn.active {
  background: var(--green-soft);
  border-color: var(--green);
  color: var(--green-dark);
}

.crop-stage {
  flex: 1;
  min-height: 240px;
  max-height: 55vh;
  background: #1a2e1f;
  overflow: hidden;
}
.crop-stage img {
  display: block;
  max-width: 100%;
}

.crop-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 8px;
  align-items: center;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--line);
  background: #fff;
}
.crop-actions__tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.crop-actions__decide {
  display: flex;
  flex: 1 1 auto;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  min-width: min(100%, 12rem);
}
.crop-actions button {
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  border-radius: 999px;
  padding: 10px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
}
.crop-actions__decide .primary {
  margin-left: auto;
}
.crop-actions button.primary {
  background: var(--green);
  border-color: var(--green);
  color: white;
}
.crop-actions button.primary:hover { background: var(--green-dark); }

/* Cropper.js tweaks */
.cropper-view-box,
.cropper-face {
  border-radius: 2px;
}

/* Size slider */
.slider-block { margin-top: 12px; }
.slider-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 0.92rem;
  color: var(--muted);
}
.slider-head strong {
  color: var(--green-dark);
  font-variant-numeric: tabular-nums;
  font-size: 1rem;
}
#sizeSlider {
  width: 100%;
  height: 36px;
  accent-color: var(--green);
  touch-action: none;
}
.slider-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: -4px;
  padding: 0 2px;
}
.slider-hint { margin: 6px 0 0; }
.custom-row { margin-top: 10px; }

/* Site footer (privacy / legal) */
.site-footer {
  text-align: center;
  padding: 20px 16px 28px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
  background: rgba(255,255,255,0.5);
}
.site-footer a {
  color: var(--green-dark);
  text-decoration: none;
  font-weight: 600;
}
.site-footer a:hover { text-decoration: underline; }
.site-footer__sep { margin: 0 0.45em; opacity: 0.55; }
.site-footer__note { opacity: 0.75; }
html.ads-off .site-footer { /* still show privacy on prod */ }
body:has(.ad-sticky-bottom) .site-footer {
  padding-bottom: calc(28px + env(safe-area-inset-bottom, 0px));
}

/* Original-image brightness / contrast / saturation */
.adjust-fieldset .hint { margin: 0 0 8px; }
.adjust-slider { margin-top: 10px; }
.adjust-slider input[type="range"] {
  width: 100%;
  height: 36px;
  accent-color: var(--green);
  touch-action: none;
}
.btn-adjust-reset {
  margin-top: 12px;
  width: 100%;
}

/* Preview: show-original compare toggle */
.preview-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  margin-bottom: 4px;
  min-width: 0;
}
.btn-show-original {
  flex: 0 0 auto;
  white-space: nowrap;
}
.btn-show-original.is-active {
  background: var(--green-soft);
  border-color: var(--green);
  color: var(--green-dark);
  font-weight: 600;
}
.preview-compare-hint { margin: 8px 0 0; }

/* Controls toolbar + lock collapse */
.controls-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}
.controls-toolbar h1 { margin: 0; }
.controls.panel.is-locked .controls-body {
  display: none !important;
}
.btn-lock.is-active,
.btn-unlock {
  background: var(--green-soft);
  border-color: var(--green);
  color: var(--green-dark);
  font-weight: 600;
}

/* Usage expandable (stays available when settings locked) */
.usage-toggle {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: transparent;
  border: none;
  padding: 0;
  margin: 0 0 4px;
  cursor: pointer;
  color: inherit;
  font: inherit;
  text-align: left;
}
.usage-toggle h2 { margin: 0; font-size: 1rem; }
.usage-toggle__chev {
  font-size: 1.1rem;
  color: var(--muted);
  transition: transform 0.15s ease;
}
.usage-wrap.is-collapsed .usage-toggle__chev {
  transform: rotate(-90deg);
}
.usage-wrap.is-collapsed .usage-body {
  display: none;
}
.usage-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  margin-bottom: 4px;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}
body.focus-highlight .usage-toolbar {
  overflow-x: hidden;
}
body.focus-highlight .usage-wrap,
body.focus-highlight .usage-body {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}
.usage-toolbar .hint {
  margin: 0;
  flex: 1 1 12rem;
  min-width: 0;
  /* Stable line box so mode hint swap does not shove controls */
  line-height: 1.35;
}
.usage-toolbar__controls {
  display: flex;
  flex: 1 1 auto;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  max-width: 100%;
  min-width: 0;
}
/* Highlight mode: 3 stacked rows — Filter|Highlight, Clear selection, Clear done — no side-by-side overflow */
body.focus-highlight .usage-toolbar__controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  width: 100%;
  max-width: 100%;
  flex: 1 1 100%;
  margin-left: 0;
  gap: 6px;
  min-width: 0;
  box-sizing: border-box;
}
body.focus-highlight .focus-mode {
  grid-column: 1 / -1;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  box-sizing: border-box;
}
@media (max-width: 420px) {
  .focus-mode__btn,
  .btn-clear-filter,
  .btn-clear-completed {
    padding-left: 8px;
    padding-right: 8px;
    font-size: 0.72rem;
  }
}
.btn-clear-filter {
  flex: 0 0 auto;
  padding: 6px 10px;
  font-size: 0.78rem;
  line-height: 1.25;
  white-space: nowrap;
  box-sizing: border-box;
}
.btn-clear-filter:not(:disabled) {
  border-color: var(--green);
  color: var(--green-dark);
}
.btn-clear-completed {
  flex: 0 0 auto;
  padding: 6px 10px;
  font-size: 0.78rem;
  line-height: 1.25;
  white-space: nowrap;
  box-sizing: border-box;
}
.btn-clear-completed:not(:disabled) {
  border-color: #c4a35a;
  color: #8a6a28;
  background: color-mix(in srgb, #f5e6c8 55%, #fff);
}
.btn-clear-completed[hidden] { display: none !important; }
/* After base nowrap (~btn-clear-*): highlight must win — each clear btn full-width row */
body.focus-highlight .btn-clear-filter,
body.focus-highlight .btn-clear-completed,
body.focus-highlight #btnClearFilter,
body.focus-highlight #btnClearCompleted {
  grid-column: 1 / -1;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  justify-self: stretch;
  align-self: stretch;
  text-align: center;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
  line-height: 1.2;
  box-sizing: border-box;
}
.btn-clear-completed.is-long-pressing:not(:disabled) {
  border-color: #a67c2a;
  color: #6b5018;
  background: color-mix(in srgb, #f0d9a0 70%, #fff);
  transform: scale(0.97);
}

.usage-item.is-all-done {
  opacity: 0.55;
  border-style: dashed;
}
.usage-item.is-all-done .code {
  text-decoration: line-through;
}
.usage-item .count .done-frac {
  color: #8a6a28;
  font-weight: 600;
}
.usage-item__mark {
  display: none;
  width: 16px;
  height: 16px;
  padding: 0;
  margin: 0;
  border-radius: 3px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--green-dark);
  font-size: 0.65rem;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
}
.usage-item.is-focus .usage-item__mark {
  display: inline-flex;
}
body.focus-highlight .usage-item.is-focus .usage-item__mark {
  display: inline-flex;
}
body:not(.focus-highlight) .usage-item__mark {
  display: none !important;
}
.usage-item__mark:hover {
  border-color: var(--green);
  background: var(--green-soft);
}
.canvas-box.is-mark-done {
  /* Long-press to mark/unmark done — not a single-tap target */
  cursor: cell;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
/* When settings locked, usage panel stays interactive */
body.settings-locked .usage-wrap {
  position: relative;
  z-index: 5;
}

/* Settings section accordion */
.ctrl-accordion {
  border: 1px solid var(--line);
  border-radius: 12px;
  margin: 0 0 14px;
  padding: 0;
  /* Subtle green tint (not pure white) */
  background: color-mix(in srgb, var(--green-soft) 42%, #fff);
}
.ctrl-accordion > summary {
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  user-select: none;
  color: var(--ink);
}
.ctrl-accordion > summary::-webkit-details-marker { display: none; }
.ctrl-accordion > summary::after {
  content: "▾";
  color: var(--muted);
  font-size: 1rem;
  transition: transform 0.15s ease;
}
.ctrl-accordion:not([open]) > summary::after {
  transform: rotate(-90deg);
}
.ctrl-accordion__body {
  padding: 0 14px 14px;
  border-top: 1px solid var(--line);
}
.ctrl-accordion__body > :first-child { margin-top: 10px; }
.ctrl-accordion__foot {
  display: flex;
  justify-content: flex-end;
  margin-top: 12px;
  padding-top: 4px;
}
.btn-accordion-confirm {
  min-width: 4.5em;
  padding: 6px 14px;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--green);
  border-radius: 8px;
  background: var(--green-soft);
  color: var(--green-dark);
  cursor: pointer;
}
.btn-accordion-confirm:hover,
.btn-accordion-confirm:focus-visible {
  background: #c8ebcf;
  outline: none;
}
.btn-confirm { min-width: 5.5em; }

.help-tip-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  margin-left: 2px;
}
.help-tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35em;
  height: 1.35em;
  min-width: 28px;
  min-height: 28px;
  margin: 0;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  font-style: normal;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  flex: 0 0 auto;
  line-height: 1;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.help-tip:hover,
.help-tip:focus-visible,
.help-tip[aria-expanded="true"] {
  color: var(--green-dark);
  border-color: var(--green);
  outline: none;
}
.help-tip__bubble {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  z-index: 60;
  box-sizing: border-box;
  width: max-content;
  max-width: min(16.5rem, calc(100vw - 2rem));
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.4;
  text-align: left;
  white-space: normal;
  box-shadow: 0 6px 18px rgba(35, 90, 50, 0.16);
}
.help-tip__bubble[hidden] {
  display: none !important;
}
.help-tip__bubble::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border: 5px solid transparent;
  border-top-color: #fff;
  filter: drop-shadow(0 1px 0 var(--line));
}


/* Preview title text hidden; sticky preview + action buttons remain */
.preview-title {
  display: none !important;
}
.preview-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}
.preview-wrap .preview-body .canvas-box {
  flex: 1 1 auto;
}


/* Filter vs highlight-position mode (揀珠色) — equal-width segments, no toggle jump */
.focus-mode {
  display: inline-grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: #fff;
  align-self: center;
}
.focus-mode__btn {
  border: none;
  border-radius: 0;
  background: transparent;
  padding: 6px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
  box-sizing: border-box;
  min-height: 2rem;
}
.focus-mode__btn + .focus-mode__btn {
  border-left: 1px solid var(--line);
}
.focus-mode__btn.is-active {
  background: var(--green-soft);
  color: var(--green-dark);
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .focus-mode {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.28);
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .focus-mode__btn {
  color: rgba(232, 245, 234, 0.8);
  background: transparent;
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .focus-mode__btn + .focus-mode__btn {
  border-left-color: rgba(255, 255, 255, 0.28);
}
.preview-wrap.is-fullscreen .usage-wrap.is-fs-dock .focus-mode__btn.is-active {
  background: rgba(255, 229, 102, 0.22);
  color: #ffe566;
}


/* Combined export menu (PNG / PDF) — lives in preview-head__actions */
.preview-head__actions .export-menu {
  position: relative;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
}
.preview-head__primary .export-menu__list {
  left: 0;
  right: auto;
}
.export-menu__list {
  position: absolute;
  right: 0;
  left: auto;
  top: calc(100% + 6px);
  bottom: auto;
  min-width: 10rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px;
  border-radius: 10px;
  border: 1px solid var(--border, #ccc);
  background: var(--panel, #fff);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  z-index: 40;
  color: var(--ink);
}
.export-menu__list[hidden] { display: none !important; }
.export-menu__list button {
  text-align: left;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--ink);
  white-space: nowrap;
  border-radius: 8px;
}
.export-menu__list button:hover:not(:disabled) {
  background: color-mix(in srgb, var(--accent, #5b6cff) 12%, transparent);
}
.export-menu__list button:disabled { opacity: 0.45; cursor: not-allowed; }
.preview-wrap.is-fullscreen .export-menu__list {
  background: #1a2a1e;
  border-color: rgba(255,255,255,0.28);
  color: #e8f5ea;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
}
.preview-wrap.is-fullscreen .export-menu__list button {
  color: #e8f5ea;
}
.preview-wrap.is-fullscreen .export-menu__list button:hover:not(:disabled) {
  background: rgba(255,255,255,0.12);
}


/* —— Draft restore modal (mirrors crop-modal shell) —— */
.draft-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(20, 40, 28, 0.55);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}
.draft-modal[hidden] { display: none !important; }
@media (min-width: 720px) {
  .draft-modal { align-items: center; padding: 24px; }
}
.draft-modal__sheet {
  width: 100%;
  max-width: 520px;
  max-height: min(92vh, 720px);
  background: var(--panel);
  border-radius: 20px 20px 0 0;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 16px 18px 18px;
  box-sizing: border-box;
}
@media (min-width: 720px) {
  .draft-modal__sheet { border-radius: var(--radius); max-height: 85vh; }
}
.draft-modal__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}
.draft-modal__head h2 {
  margin: 0;
  font-size: 1.15rem;
  flex: 1 1 auto;
  min-width: 0;
}
.draft-modal__close {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  font: inherit;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
}
.draft-modal__close:hover,
.draft-modal__close:focus-visible {
  border-color: var(--green);
  color: var(--green-dark);
  outline: none;
}
.draft-restore__hint { margin: 0 0 12px; }
.draft-restore__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  flex: 1 1 auto;
  min-height: 0;
}
.draft-restore__item {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 8px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid #e2e8e4;
}
.draft-restore__thumb {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  background: #f0f4f1;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.draft-restore__thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}
.draft-restore__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.draft-restore__meta strong {
  font-size: 0.92rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.draft-restore__meta span {
  font-size: 0.78rem;
  color: #5a6b62;
  line-height: 1.35;
}
.draft-restore__item-actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.draft-restore__item-actions button,
.draft-restore__actions button {
  font: inherit;
  font-size: 0.82rem;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #c5d0c9;
  background: #fff;
  cursor: pointer;
}
.btn-draft-restore {
  background: var(--accent, #3d8b6e) !important;
  border-color: var(--accent, #3d8b6e) !important;
  color: #fff !important;
}
.btn-draft-delete,
.btn-draft-clear {
  color: #8a3b3b;
}
.draft-restore__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  flex: 0 0 auto;
}
.palette-approx-hint { margin: 6px 0 0; }
@media (max-width: 520px) {
  .draft-restore__item {
    grid-template-columns: 48px 1fr;
  }
  .draft-restore__item-actions {
    grid-column: 1 / -1;
    flex-direction: row;
  }
}


/* Crawlable how-to / FAQ (SEO help, not ad) — ctrl-accordion, default open */
.seo-intro {
  margin: 0 0 12px;
  padding: 0 2px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}
.seo-help {
  margin-top: 8px;
  padding: 12px;
}
.seo-help > .ctrl-accordion {
  margin: 0;
}
.seo-help .ctrl-accordion > summary {
  font-size: 1.05rem;
}
.seo-faq-heading {
  margin: 16px 0 10px !important;
  font-size: 1.05rem;
}
.seo-steps {
  margin: 0 0 8px;
  padding-left: 1.25em;
  line-height: 1.6;
  color: var(--ink);
}
.seo-steps li + li { margin-top: 6px; }
.seo-faq details {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 8px;
  background: #fafcfb;
}
.seo-faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
}
.seo-faq details[open] summary { margin-bottom: 8px; }
.seo-faq details p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.92rem;
}