/* =============================================================
 *  gb.css —— 经典工程界面（菜单栏 / 属性条 / 双列工具条 / 状态栏）
 *  所有新增元素默认 display:none，只有 body.gb-classic 才显示：
 *  即使增强脚本未加载或报错，页面仍保持原来的 WebCAD 外观。
 * ============================================================= */

.gb-ui,
.gb-tools,
.gb-tabbar,
.cx-status,
.gb-dyn { display: none; }

body.gb-classic .gb-ui { display: block; flex: 0 0 auto; }
body.gb-classic .gb-tools { display: flex; }
body.gb-classic .gb-tabbar { display: flex; }
body.gb-classic .cx-status { display: inline-flex; }
body.gb-classic .ribbon { display: none; }

/* ---------------- 菜单栏 ---------------- */
.gb-menubar {
  display: flex;
  align-items: stretch;
  height: 26px;
  background: var(--grad-top);
  border-bottom: 1px solid var(--border);
  padding: 0 6px;
  position: relative;
  z-index: 60;
}
.cx-menu {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text);
  font: 12px/1 "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  padding: 0 11px;
  cursor: pointer;
  border-radius: 3px;
  margin: 2px 1px;
}
.cx-menu:hover, .cx-menu.open { background: var(--accent-soft); color: var(--accent); }
.cx-menu-tail {
  margin-left: auto;
  align-self: center;
  font-size: 11px;
  color: var(--text3);
  padding-right: 8px;
  letter-spacing: .3px;
}
.cx-drop {
  position: absolute;
  top: 25px;
  min-width: 190px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: var(--shadow-lg);
  padding: 4px;
  z-index: 200;
  max-height: 70vh;
  overflow: auto;
}
.cx-drop-item {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: var(--text);
  font: 12px/1.5 "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  padding: 5px 12px;
  border-radius: 3px;
  cursor: pointer;
  white-space: nowrap;
}
.cx-drop-item:hover { background: var(--accent-soft); color: var(--accent); }
.cx-sep { height: 1px; background: var(--border2); margin: 4px 6px; }

/* ---------------- 标准工具条 + 属性条 ---------------- */
.gb-stdbar {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 30px;
  padding: 0 8px;
  background: var(--panel);
  border-bottom: 1px solid var(--border2);
}
.cx-stdbtn {
  width: 26px;
  height: 23px;
  border: 1px solid transparent;
  border-radius: 3px;
  background: transparent;
  color: var(--text2);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}
.cx-stdbtn:hover { background: var(--hover); border-color: var(--border); color: var(--accent); }
.cx-bar-sep {
  width: 1px;
  height: 17px;
  background: var(--border);
  margin: 0 5px;
  display: inline-block;
}

.gb-propbar {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 29px;
  padding: 0 10px;
  background: var(--panel2);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.cp-item { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.cp-lab { font-size: 11px; color: var(--text3); }
.gb-propbar select {
  height: 21px;
  min-width: 108px;
  border: 1px solid var(--border);
  background: var(--input);
  color: var(--text);
  border-radius: 3px;
  font: 11px/1 "Microsoft YaHei", "Segoe UI", sans-serif;
  padding: 0 4px;
}
.gb-propbar select:focus { outline: 1px solid var(--accent); }
.cp-state { margin-left: auto; color: var(--text3); font-size: 11px; }

/* ---------------- 左侧双列竖工具条 ---------------- */
.gb-tools {
  flex: 0 0 auto;
  gap: 2px;
  padding: 5px 4px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  align-items: flex-start;
  overflow-y: auto;
  max-height: 100%;
}
.cx-col { display: flex; flex-direction: column; gap: 2px; }
.cx-toolbtn {
  width: 27px;
  height: 26px;
  border: 1px solid transparent;
  border-radius: 3px;
  background: var(--panel2);
  color: var(--text2);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cx-toolbtn:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft-br);
  color: var(--accent);
}

/* ---------------- 模型 / 布局标签 ---------------- */
.gb-tabbar {
  flex: 0 0 24px;
  align-items: center;
  gap: 2px;
  padding: 0 6px;
  background: var(--panel);
  border-top: 1px solid var(--border);
}
.gb-tabbar button {
  border: 1px solid transparent;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--text3);
  font: 11px/1 "Microsoft YaHei", "Segoe UI", sans-serif;
  height: 22px;
  padding: 0 12px;
  cursor: pointer;
}
.gb-tabbar button.on {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: var(--accent-soft);
}
.cx-tabhint { margin-left: 8px; color: var(--text3); font-size: 11px; }

/* ---------------- 状态栏扩展 ---------------- */
.cx-status { align-items: center; gap: 4px; }
.cx-sc { color: var(--text3); font-size: 11px; padding: 0 5px; white-space: nowrap; }
.cx-sbtn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text3);
  font: 11px/1 "Microsoft YaHei", "Segoe UI", sans-serif;
  height: 18px;
  padding: 0 7px;
  border-radius: 3px;
  cursor: pointer;
}
.cx-sbtn.on { color: var(--accent); border-color: var(--accent-soft-br); background: var(--accent-soft); }

/* ---------------- 动态输入 ---------------- */
.gb-dyn {
  position: absolute;
  z-index: 40;
  pointer-events: none;
  background: rgba(18, 22, 28, .92);
  border: 1px solid var(--accent-soft-br);
  border-radius: 3px;
  padding: 3px 7px;
  color: #e6eaef;
  font: 11px/1.5 "Consolas", "Microsoft YaHei", monospace;
  box-shadow: var(--shadow);
  white-space: nowrap;
}
.gb-dyn b { color: #7fc4ff; font-weight: 500; margin-right: 8px; }
.gb-dyn span { color: #cfd6e0; }
body.ui-light .gb-dyn { background: rgba(255, 255, 255, .95); color: #1f2329; border-color: #a9c9ec; }
body.ui-light .gb-dyn b { color: #0a84ff; }
body.ui-light .gb-dyn span { color: #404750; }

/* ---------------- 模态对话框 ---------------- */
.gb-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .55);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
}
.gb-modal-box {
  width: 460px;
  max-width: 94vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow-lg);
  color: var(--text);
  font-size: 12px;
}
.gb-modal-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border2);
  font-size: 13px;
  font-weight: 600;
}
.cx-x {
  border: 0;
  background: transparent;
  color: var(--text3);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0 3px;
}
.cx-x:hover { color: var(--danger); }
.gb-modal-bd { padding: 12px 14px; overflow: auto; }
.gb-modal-ft {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--border2);
}
.gb-modal-ft button {
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  border-radius: 4px;
  padding: 5px 16px;
  font-size: 12px;
  cursor: pointer;
}
.gb-modal-ft button:hover { border-color: var(--accent); }
.gb-modal-ft .cx-ok { background: var(--accent); border-color: var(--accent); color: #fff; }
.gb-modal-ft .cx-ok:hover { filter: brightness(1.08); }

.cx-frow { display: flex; align-items: center; min-height: 32px; gap: 8px; }
.cx-frow > label { flex: 0 0 88px; color: var(--text2); text-align: right; }
.cx-fi { flex: 1; display: flex; align-items: center; gap: 10px; }
.cx-fi input[type="text"],
.cx-fi input[type="number"],
.cx-fi select,
.cx-fi textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--input);
  color: var(--text);
  border-radius: 3px;
  padding: 4px 7px;
  font: 12px/1.5 "Microsoft YaHei", "Segoe UI", sans-serif;
  box-sizing: border-box;
}
.cx-fi input:focus, .cx-fi select:focus, .cx-fi textarea:focus { outline: 1px solid var(--accent); }
.cx-fi textarea { resize: vertical; }
.cx-chk { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; color: var(--text2); }
.cx-chk input { accent-color: var(--accent); }
.cx-tip {
  margin-top: 10px;
  padding: 8px 10px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  color: var(--text2);
  font-size: 11px;
  line-height: 1.7;
}
.cx-sub { color: var(--text3); font-size: 11px; margin: 6px 0 4px 88px; }
.cx-bomgrid { margin-top: 6px; max-height: 260px; overflow: auto; }
.cx-bomhead, .cx-bomrow { display: flex; gap: 2px; margin-bottom: 2px; }
.cx-bomhead span {
  background: var(--panel2);
  color: var(--text3);
  text-align: center;
  padding: 3px 0;
  font-size: 11px;
  min-width: 0;
}
.cx-bomrow input {
  min-width: 0;
  border: 1px solid var(--border);
  background: var(--input);
  color: var(--text);
  border-radius: 2px;
  padding: 3px 4px;
  font-size: 11px;
  box-sizing: border-box;
}
.cx-techlist { max-height: 220px; overflow: auto; border: 1px solid var(--border2); border-radius: 3px; padding: 4px; }
.cx-techitem {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  padding: 5px 6px;
  color: var(--text2);
  line-height: 1.5;
  cursor: pointer;
}
.cx-techitem:hover { background: var(--hover); }
.cx-techitem input { accent-color: var(--accent); margin-top: 2px; }
.cx-about p { line-height: 1.8; margin: 0 0 9px; color: var(--text2); }
.cx-about b { color: var(--text); }
.cx-about .cx-dim { color: var(--text3); font-size: 11px; border-top: 1px solid var(--border2); padding-top: 9px; }

/* ---------------- 顶栏切换按钮 ---------------- */
#btnGbUI.on { color: var(--accent); border-color: var(--accent-soft-br); background: var(--accent-soft); }
.gb-rgroup { border-left: 2px solid var(--accent-soft-br); }

/* ---------------- 小屏 ---------------- */
@media (max-width: 900px) {
  .cx-menu { padding: 0 6px; }
  .cx-menu-tail, .cp-state, .cx-tabhint { display: none; }
  .gb-propbar { gap: 6px; }
  .gb-propbar select { min-width: 84px; }
  .gb-tools { padding: 3px 2px; }
  .cx-toolbtn { width: 24px; height: 24px; font-size: 12px; }
}