#page-nesting * { box-sizing: border-box; margin: 0; padding: 0; }
#page-nesting [hidden] { display: none !important; }
#page-nesting {
  --primary: #1f6feb;
  --primary-dark: #1a5fd0;
  --danger: #d4380d;
  --bg: #f5f7fa;
  --panel: #ffffff;
  --border: #e3e8ef;
  --text: #1f2733;
  --text-2: #68758a;
  --radius: 8px;
}
#page-nesting .topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
#page-nesting .brand { display: flex; align-items: baseline; gap: 12px; }
#page-nesting .logo { font-size: 20px; font-weight: 700; color: var(--primary); }
#page-nesting .module-tag {
  font-size: 12px; color: var(--text-2);
  background: #eef3fb; padding: 3px 10px; border-radius: 999px;
}
#page-nesting .topbar-actions { display: flex; gap: 8px; }
#page-nesting .btn {
  padding: 7px 14px; border: 1px solid var(--border); background: var(--panel);
  border-radius: var(--radius); cursor: pointer; font-size: 13px; color: var(--text);
  transition: all 0.15s;
}
#page-nesting .btn:hover { border-color: var(--primary); color: var(--primary); }
#page-nesting .btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
#page-nesting .btn-primary:hover { background: var(--primary-dark); color: #fff; }
#page-nesting .btn-small { padding: 5px 12px; font-size: 12px; }
#page-nesting .btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }
#page-nesting .layout { flex: 1; display: flex; min-height: 0; }
#page-nesting .sidebar {
  width: 380px; min-width: 380px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex; flex-direction: column;
}
#page-nesting .panel { padding: 14px 16px; border-bottom: 1px solid var(--border); }
#page-nesting .panel.grow { flex: 1; }
#page-nesting .panel h3 { font-size: 13px; margin-bottom: 10px; color: var(--text); }
#page-nesting .panel select {
  width: 100%; padding: 7px 10px;
  border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; background: #fff;
}
#page-nesting .profile-hint { font-size: 12px; color: var(--text-2); margin-top: 6px; }
#page-nesting .param-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
#page-nesting .param-grid label { font-size: 12px; color: var(--text-2); display: flex; flex-direction: column; gap: 4px; }
#page-nesting .param-grid label.wide { grid-column: 1 / -1; }
#page-nesting .param-grid input, #page-nesting .param-grid select, #page-nesting .add-row input {
  padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; outline: none; width: 100%;
  background: #fff; color: inherit;
}
#page-nesting .param-grid input:focus, #page-nesting .param-grid select:focus, #page-nesting .add-row input:focus { border-color: var(--primary); }
#page-nesting .stock-list { list-style: none; margin-bottom: 8px; }
#page-nesting .stock-list li {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 10px; margin-bottom: 4px;
  background: #f7f9fc; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px;
}
#page-nesting .stock-list .del { color: var(--danger); cursor: pointer; border: none; background: none; font-size: 14px; }
#page-nesting .stock-price { color: var(--text-2); font-size: 12px; margin-left: 8px; }
#page-nesting .add-row { display: flex; gap: 6px; }
#page-nesting .add-row input { flex: 1; min-width: 0; }
#page-nesting .parts-table { width: 100%; border-collapse: collapse; margin-bottom: 8px; font-size: 13px; }
#page-nesting .parts-table th {
  text-align: left; font-size: 12px; color: var(--text-2); font-weight: 500;
  padding: 4px 6px; border-bottom: 1px solid var(--border);
}
#page-nesting .parts-table td { padding: 5px 6px; border-bottom: 1px solid #f0f3f7; }
#page-nesting .parts-table .del { color: var(--danger); cursor: pointer; border: none; background: none; }
#page-nesting .result { flex: 1; overflow-y: auto; padding: 18px 22px; min-width: 0; }
#page-nesting .empty-tip {
  height: 100%; display: flex; flex-direction: column;
  align-items: center; justify-content: center; color: var(--text-2);
}
#page-nesting .empty-tip .hint { font-size: 12px; margin-top: 6px; opacity: 0.7; }
#page-nesting .stat-cards { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-bottom: 16px; }
#page-nesting .stat-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px;
}
#page-nesting .stat-card .v { font-size: 20px; font-weight: 700; color: var(--primary); }
#page-nesting .stat-card .v.warn { color: var(--danger); }
#page-nesting .stat-card .k { font-size: 12px; color: var(--text-2); margin-top: 4px; }
#page-nesting .unplaced-warn {
  background: #fff1ec; border: 1px solid #f5c4b3; color: var(--danger);
  border-radius: var(--radius); padding: 10px 14px; margin-bottom: 14px; font-size: 13px;
}
#page-nesting .section-title { font-size: 14px; margin-bottom: 10px; }
#page-nesting .bar-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; margin-bottom: 12px;
}
#page-nesting .bar-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
#page-nesting .bar-title { font-size: 13px; font-weight: 600; }
#page-nesting .bar-meta { font-size: 12px; color: var(--text-2); }
#page-nesting .bar-meta .remnant { color: #2e7d32; font-weight: 600; }
#page-nesting .bar-meta .waste { color: var(--text-2); }
#page-nesting .bar-track {
  display: flex; height: 34px; border-radius: 6px; overflow: hidden;
  border: 1px solid var(--border);
}
#page-nesting .seg {
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 11px; font-weight: 500;
  overflow: hidden; white-space: nowrap;
  border-right: 1px solid rgba(255,255,255,0.65);
  min-width: 0;
}
#page-nesting .seg span { overflow: hidden; text-overflow: ellipsis; padding: 0 3px; }
#page-nesting .seg.kerf { background: #c9ced6; flex: none; border-right: none; }
#page-nesting .seg.leftover { background: #eef1f5; color: var(--text-2); border-right: none; }
#page-nesting .seg.leftover.remnant { background: #e6f4ea; color: #2e7d32; }
#page-nesting .bar-detail { margin-top: 6px; font-size: 12px; color: var(--text-2); }
#page-nesting .strategy-note {
  font-size: 12.5px; color: var(--text-2);
  background: #f0f4fa; border: 1px solid #dde5f0; border-radius: 6px;
  padding: 6px 12px; margin-bottom: 10px;
}
#page-nesting .ms-card { padding: 12px 14px; }
#page-nesting .ms-title {
  font-size: 13px; font-weight: 600; color: var(--text-1, #1f2733);
  margin: 10px 0 6px; padding-left: 8px; border-left: 3px solid var(--accent, #378ADD);
}
#page-nesting .ms-title:first-child { margin-top: 0; }
#page-nesting .ms-card .parts-table { width: 100%; border-collapse: collapse; margin-bottom: 4px; }
#page-nesting .ms-card .parts-table th, #page-nesting .ms-card .parts-table td { padding: 5px 8px; font-size: 12.5px; }
#page-nesting .ms-unplaced td { color: var(--danger); }
#page-nesting .ms-total td { font-size: 13px; }
#page-nesting .ms-grand td { font-weight: 700; color: var(--accent, #378ADD); border-top: 2px solid #d5dbe4; }
#page-nesting .toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%);
  background: #1f2733; color: #fff; padding: 9px 20px; border-radius: 999px;
  font-size: 13px; box-shadow: 0 4px 16px rgba(0,0,0,0.25); z-index: 99;
}
#page-nesting .toast.err { background: var(--danger); }