/* ═════════════════════════════════════════════
   🎵 Music Lab — 音乐实验室 样式
   ═════════════════════════════════════════════ */

.musiclab { scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.1) transparent; }
.ml-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (max-width: 640px) { .ml-grid { grid-template-columns: 1fr; } }

.ml-card {
  background: var(--bg-card, #1a1a2e);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid var(--border, rgba(255,255,255,0.08));
}
.ml-card-title {
  font-size: 14px;
  font-weight: bold;
  margin-bottom: 12px;
  opacity: 0.8;
}
.ml-card-wide { grid-column: 1 / -1; }

.ml-key { transition: all 0.1s ease; }
.ml-key:hover { transform: translateY(-2px); filter: brightness(1.3); }

/* ═════════════════════════════════════════════
   📊 Dashboard — 调度面板 样式
   ═════════════════════════════════════════════ */

.db-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (max-width: 640px) { .db-grid { grid-template-columns: 1fr; } }

.db-card {
  background: var(--bg-card, #1a1a2e);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid var(--border, rgba(255,255,255,0.08));
}
.db-card-title { font-size: 14px; font-weight: bold; margin-bottom: 10px; opacity: 0.8; }
.db-card-wide { grid-column: 1 / -1; }
.db-row {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  font-size: 13px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.db-bar {
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  margin: 2px 0 8px;
  overflow: hidden;
}
.db-bar div { height: 100%; border-radius: 2px; transition: width 0.5s; }
.db-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 13px;
}
.db-stat-num { font-size: 24px; font-weight: 900; font-family: monospace; }

/* ═════════════════════════════════════════════
   ⚡ Quick Command — 快捷命令台 样式
   ═════════════════════════════════════════════ */

.qc-section { margin-bottom: 8px; }
.qc-title { font-size: 14px; font-weight: bold; margin-bottom: 8px; opacity: 0.8; }
.qc-btns { display: flex; flex-wrap: wrap; gap: 6px; }

/* ═════════════════════════════════════════════
   🔗 Clipboard Bridge 样式
   ═════════════════════════════════════════════ */

.cp-card {
  background: var(--bg-card, #1a1a2e);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid var(--border, rgba(255,255,255,0.08));
}
.cp-title { font-size: 14px; font-weight: bold; margin-bottom: 10px; opacity: 0.8; }

/* ═════════════════════════════════════════════
   📝 Notes — 便签板 样式
   ═════════════════════════════════════════════ */

.notes { scrollbar-width: thin; }
.notes textarea::placeholder { color: rgba(255,255,255,0.2); }
.notes textarea:focus { outline: none; border-color: var(--accent, #00e5ff); }
.notes input:focus { outline: none; border-color: var(--accent, #00e5ff); }

/* ═════════════════════════════════════════════
   🎨 Color Tools — 配色工具 样式
   ═════════════════════════════════════════════ */

.ct-card {
  background: var(--bg-card, #1a1a2e);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid var(--border, rgba(255,255,255,0.08));
}
.ct-title { font-size: 14px; font-weight: bold; margin-bottom: 10px; opacity: 0.8; }

/* ═════════════════════════════════════════════
   🧠 PyTorch Lab — 深度学习实验室 样式
   ═════════════════════════════════════════════ */

.pt-label {
  display: flex; flex-direction: column; gap: 3px;
  font-size: 11px; color: var(--text2, #8888aa);
}
.pt-input {
  background: var(--bg3, #1a1a35) !important;
  color: var(--text, #e0e0f0) !important;
  border: 1px solid var(--border, #2a2a50) !important;
  border-radius: 6px !important;
  padding: 6px 10px !important;
  font-size: 13px !important;
  outline: none;
  box-sizing: border-box;
  width: 100%;
}
.pt-btn {
  padding: 8px 16px;
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
}
.pt-btn-sm {
  padding: 4px 10px;
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  cursor: pointer;
  font-size: 11px;
}

/* ── Music Lab v2 ── */
.ml-synth-key:hover { filter: brightness(1.3); }
.ml-synth-key:active { transform: scaleY(0.97); }
.ml-seq-cell { transition: background 0.08s; }
.ml-seq-active { background: rgba(0, 229, 255, 0.25) !important; border-color: var(--accent, #00e5ff) !important; }
.ml-seq-cell input:checked + span { display: none; }
.ml-seq-cell:has(input:checked) { background: var(--accent, #00e5ff) !important; }
.ml-drum-row { min-height: 24px; }
.musiclab::-webkit-scrollbar { width: 4px; }
.musiclab::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

/* ===== PhD Sub-Tabs ===== */
.phd-subtabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  padding: 0 4px;
}
.phd-subtab {
  flex: 1;
  min-width: 80px;
  padding: 12px 8px;
  border-radius: 12px;
  border: 1px solid var(--border, #2a2a50);
  background: var(--bg3, #1a1a35);
  color: var(--text2, #999);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all .2s ease;
  text-align: center;
}
.phd-subtab:hover {
  border-color: var(--accent, #00e5ff);
  background: rgba(0, 229, 255, 0.08);
  color: var(--text, #e0e0e0);
}
.phd-subtab.active {
  border-color: var(--accent, #00e5ff);
  background: rgba(0, 229, 255, 0.15);
  color: var(--accent, #00e5ff);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
}
.phd-subpanel {
  animation: fadeIn .25s ease;
}
.phd-subpanel .card {
  background: var(--bg3, #1a1a35);
  border: 1px solid var(--border, #2a2a50);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 12px;
}
.phd-subpanel .card h3 {
  color: var(--accent, #00e5ff);
  font-size: 17px;
  margin: 0 0 8px;
}
.phd-subpanel .card p {
  color: var(--text2, #999);
  font-size: 13px;
  margin: 0 0 14px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}
.feature-item {
  background: var(--bg2, #12123a);
  border: 1px solid var(--border, #2a2a50);
  border-radius: 10px;
  padding: 12px;
  text-align: center;
  font-size: 12px;
  color: var(--text2, #999);
  cursor: pointer;
  transition: all .2s ease;
}
.feature-item:hover {
  border-color: var(--accent, #00e5ff);
  background: rgba(0, 229, 255, 0.08);
  color: var(--text, #e0e0e0);
  transform: translateY(-1px);
}

/* ===== Grad (Master) Sub-Tabs ===== */
.grad-subtabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.grad-subtab {
  flex: 1;
  min-width: 75px;
  padding: 10px 6px;
  border-radius: 10px;
  border: 1px solid var(--border, #2a2a50);
  background: var(--bg3, #1a1a35);
  color: var(--text2, #999);
  cursor: pointer;
  font-size: 12px;
  transition: all .2s ease;
  text-align: center;
}
.grad-subtab:hover {
  border-color: #7c4dff;
  background: rgba(124, 77, 255, 0.08);
  color: var(--text, #e0e0e0);
}
.grad-subtab.active {
  border-color: #7c4dff;
  background: rgba(124, 77, 255, 0.15);
  color: #7c4dff;
  box-shadow: 0 0 12px rgba(124, 77, 255, 0.15);
}

/* ===== Fade In Animation ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}