/* ==========================================================================
   图像处理编辑器 · 增量样式（image-editor.html）
   复用 css/editor.css 的全部骨架：顶栏 / 工具栏 / 子菜单 / 快速条 / 右侧面板
   这里只补「像素画布」相关的差异部分
   ========================================================================== */

/* 12 个工具 + 5 组分隔，逼现有工具栏高一截：
   ① 图标块不参与压缩（否则底部的「我的」会被挤扁）
   ② 纵向更紧凑，1080 / 900 高的屏一屏放得下；768 屏由工具栏自己滚 */
.toolbar {
  overflow-y: auto;
  scrollbar-width: none;
  gap: 4px;
  padding: 10px 0;
}
.toolbar::-webkit-scrollbar { display: none; }
.toolbar .tool { flex: 0 0 auto; height: 48px; }
.toolbar .toolbar__sep { margin: 3px 0; }

/* ===== 画布区 ===== */
.ph-stage {
  position: relative;
  align-items: safe center;
  justify-content: safe center;
}

.ph-canvas-wrap {
  flex: 0 0 auto;
  position: relative;
  line-height: 0;
  background: #fff;
  box-shadow: 0 8px 26px rgba(12, 11, 10, 0.22);
}

#photoCanvas {
  display: block;
  /* 透明像素用棋盘格显示，和 PS 一致 */
  background-image:
    repeating-conic-gradient(#ffffff 0% 25%, #e8e8e8 0% 50%);
  background-size: 16px 16px;
  touch-action: none;
  image-rendering: auto;
}

/* 画布为空时：隐藏画布，露出引导卡 */
.app.is-empty .ph-canvas-wrap { display: none; }
.app:not(.is-empty) .ph-empty { display: none; }

.ph-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
}
.ph-empty__card {
  width: min(420px, 100%);
  padding: 34px 30px 28px;
  text-align: center;
  background: rgba(251, 248, 241, 0.92);
  border: 1px dashed rgba(12, 11, 10, 0.22);
  border-radius: 14px;
}
.ph-empty__ico { width: 46px; height: 46px; margin: 0 auto 16px; color: var(--clay); opacity: 0.85; }
.ph-empty__t {
  margin: 0 0 8px;
  font-family: "Songti SC", "SimSun", serif;
  font-size: 21px;
  letter-spacing: 0.06em;
  color: var(--ink);
}
.ph-empty__d { margin: 0 0 22px; font-size: 12.5px; line-height: 1.85; color: var(--muted); }
.ph-empty__btn { height: 36px; padding: 0 20px; }
.ph-empty__k {
  margin: 18px 0 0;
  font-family: var(--mono, monospace);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: rgba(12, 11, 10, 0.34);
}

/* 拖拽悬停整块画布区 */
.ph-stage.is-drag::after {
  content: "松手放入图片";
  position: absolute;
  inset: 12px;
  z-index: 40;
  display: grid;
  place-items: center;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--clay);
  background: rgba(201, 165, 87, 0.14);
  border: 1.5px dashed var(--gold);
  border-radius: 12px;
  pointer-events: none;
}

/* ===== 属性面板小件 ===== */
.kv {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 0;
  font-size: 12.5px;
}
.kv span { color: var(--muted); }
.kv b {
  font-family: var(--mono, monospace);
  font-weight: 500;
  font-size: 12px;
  color: var(--ink);
  text-align: right;
}

.ph-cur {
  margin: 0 0 6px;
  font-family: "Songti SC", "SimSun", serif;
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--clay);
}

.ph-slot {
  display: grid;
  place-items: center;
  min-height: 76px;
  border: 1px dashed rgba(12, 11, 10, 0.18);
  border-radius: 9px;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: rgba(12, 11, 10, 0.32);
  background: rgba(251, 248, 241, 0.5);
}

.ph-row { display: flex; flex-wrap: wrap; gap: 8px; }
.ph-mini {
  height: 30px;
  padding: 0 12px;
  font-size: 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--cream);
  color: var(--ink);
  cursor: pointer;
  font-family: inherit;
}
.ph-mini:hover { border-color: var(--clay); color: var(--clay); }

/* ===== 图层 ===== */
.ph-layerbar {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px 10px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--cream);
}
.ph-layerbar__t {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.ph-layerbar__t b {
  margin-left: 5px;
  font-family: var(--mono, monospace);
  font-weight: 500;
  color: var(--muted);
}
.ph-layerbar__acts { display: flex; gap: 4px; }
.ph-icon-btn {
  width: 26px;
  height: 26px;
  padding: 0;
  display: grid;
  place-items: center;
  font-size: 14px;
  line-height: 1;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--cream);
  color: var(--ink);
  cursor: pointer;
}
.ph-icon-btn:hover { border-color: var(--clay); color: var(--clay); }

.ph-layers { flex: 1 1 auto; overflow-y: auto; min-height: 0; }

.ph-layer {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px 9px 14px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  background: transparent;
}
.ph-layer:hover { background: rgba(251, 248, 241, 0.7); }
.ph-layer.is-active { background: rgba(201, 165, 87, 0.15); }
.ph-layer__thumb {
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  background: #fff repeating-conic-gradient(#f2f2f2 0% 25%, #fff 0% 50%) 0 / 12px 12px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.ph-layer__thumb img { width: 100%; height: 100%; object-fit: cover; }
.ph-layer__m { flex: 1 1 auto; min-width: 0; }
.ph-layer__n {
  display: block;
  font-size: 12.5px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ph-layer__s {
  display: block;
  margin-top: 2px;
  font-family: var(--mono, monospace);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.ph-layer__eye {
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: 5px;
}
.ph-layer__eye:hover { background: rgba(12, 11, 10, 0.06); color: var(--ink); }
.ph-layer__eye .ico { width: 15px; height: 15px; }

.ph-layerfoot {
  flex: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--cream);
  font-size: 11.5px;
  color: var(--muted);
}
.ph-select {
  flex: 1 1 auto;
  height: 28px;
  padding: 0 8px;
  font-size: 12px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
}
.ph-select:disabled { color: var(--muted); background: var(--paper-2); }

/* ===== 历史 ===== */
.ph-hist { list-style: none; margin: 12px 0 0; padding: 0; }
.ph-hist__item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  font-size: 12.5px;
  color: var(--ink);
  border-radius: 7px;
  cursor: default;
}
.ph-hist__item:before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(12, 11, 10, 0.22);
}
.ph-hist__item.is-now { background: rgba(201, 165, 87, 0.16); color: var(--clay); }
.ph-hist__item.is-now:before { background: var(--clay); }
.ph-hist__item span { margin-left: auto; font-family: var(--mono, monospace); font-size: 10px; color: var(--muted); }

/* ===== 快速条里的图像项 ===== */
.ph-qname {
  font-family: var(--mono, monospace);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 0 4px;
}
.ph-qzoom {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.ph-qzoom button {
  width: 22px; height: 22px;
  display: grid; place-items: center;
  border: 0; background: transparent;
  color: var(--ink); font-size: 14px; line-height: 1;
  border-radius: 5px; cursor: pointer;
  font-family: inherit;
}
.ph-qzoom button:hover { background: var(--paper-2); }
.ph-qzoom b {
  min-width: 42px;
  text-align: center;
  font-family: var(--mono, monospace);
  font-size: 11px;
  font-weight: 500;
}

/* ===== 窄屏 ===== */
/* 像素画布 + 图层 + 参数面板在手机上没法好好用：
   与其把桌面布局硬挤成一团，不如直接说清楚，并给一个能用的去处。 */
.ph-mobile { display: none; }

@media (max-width: 860px) {
  .app__body { display: none; }
  .ph-mobile {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: grid;
    place-items: center;
    padding: 26px;
    background:
      repeating-conic-gradient(#e4ddd0 0% 25%, #ece5d8 0% 50%) 0 / 22px 22px;
  }
  .ph-mobile__card {
    width: 100%;
    max-width: 340px;
    padding: 30px 24px 26px;
    text-align: center;
    background: rgba(251, 248, 241, 0.96);
    border: 1px solid rgba(12, 11, 10, 0.14);
    border-radius: 14px;
    box-shadow: 0 14px 40px rgba(12, 11, 10, 0.16);
  }
  .ph-mobile__t {
    margin: 0 0 10px;
    font-family: "Songti SC", "SimSun", serif;
    font-size: 19px;
    line-height: 1.5;
    letter-spacing: 0.04em;
    color: var(--ink);
  }
  .ph-mobile__d {
    margin: 0 0 22px;
    font-size: 12.5px;
    line-height: 1.9;
    color: var(--muted);
  }
  .ph-mobile .abtn { display: inline-flex; height: 38px; padding: 0 20px; }
  .ph-mobile__back {
    display: block;
    margin-top: 16px;
    font-size: 12px;
    letter-spacing: 0.08em;
    color: var(--muted);
    text-decoration: none;
  }
  .ph-mobile__back:hover { color: var(--clay); }
}