/* ===== 芯片设计编辑器补充样式（复用 editor.css 的骨架） ===== */

.ed-mode-panel[hidden] {
  display: none !important;
}

/* 模式切换 */
.ed-mode-switch {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  margin-bottom: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.ed-mode-btn {
  padding: 8px 22px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
}

.ed-mode-btn:hover {
  color: var(--cyan);
}

.ed-mode-btn.is-active {
  color: #04101a;
  background: linear-gradient(135deg, var(--cyan), #4f8cff);
  box-shadow: 0 4px 14px rgba(34, 211, 238, 0.25);
}

#chipCanvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

/* 器件库符号 */
.chip-lib-sym {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 22px;
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
  flex: none;
}

.sym-and::after  { content: "∧"; }
.sym-nand::after { content: "∧•"; font-size: 12px; }
.sym-or::after   { content: "∨"; }
.sym-nor::after  { content: "∨•"; font-size: 12px; }
.sym-xor::after  { content: "⊕"; }
.sym-xnor::after { content: "⊕•"; font-size: 12px; }
.sym-not::after  { content: "¬"; }
.sym-buf::after  { content: "▷"; }
.sym-dff::after  { content: "D"; font-size: 12px; }
.sym-port_in::after  { content: "→"; }
.sym-port_out::after { content: "←"; }
.sym-vcc::after  { content: "V⁺"; font-size: 11px; }
.sym-gnd::after  { content: "⊥"; }
.sym-pad::after  { content: "▣"; }

/* 引脚属性表 */
.chip-pin-table {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
}

.chip-pin-table > div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 0.82rem;
  color: #cfddee;
}

.chip-pin-dir {
  color: var(--muted);
  font-size: 0.75rem;
}

/* 网表列表 */
.chip-net-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 260px;
  overflow: auto;
}

.chip-net {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-left: 3px solid #4ade80;
  border-radius: 6px;
  font-size: 0.78rem;
  color: #aebfd2;
  line-height: 1.5;
}

.chip-net b {
  display: block;
  color: #4ade80;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.ed-lib-empty {
  color: var(--muted);
  font-size: 0.82rem;
  padding: 12px 4px;
  line-height: 1.6;
}

/* 快捷键帮助弹层 */
.chip-help {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(2, 6, 16, 0.72);
  backdrop-filter: blur(3px);
  padding: 20px;
}

.chip-help-card {
  width: min(440px, 92vw);
  padding: 26px 28px;
  background: #0b1220;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.chip-help-card h3 {
  color: var(--cyan);
  font-size: 1.05rem;
  margin-bottom: 14px;
}

.chip-help-card ul {
  display: grid;
  gap: 9px;
  margin-bottom: 20px;
  font-size: 0.88rem;
  color: #cfddee;
}

.chip-help-card b {
  display: inline-block;
  min-width: 74px;
  color: #fbbf24;
  font-family: ui-monospace, Consolas, monospace;
}

@media (max-width: 720px) {
  .ed-mode-btn {
    padding: 8px 16px;
    font-size: 0.82rem;
  }
}