/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  background: #f0f2f5;
  color: #1a1a1a;
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9ca3af; }

/* ===== Animations ===== */
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* ===== Utilities ===== */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mb-4 { margin-bottom: 4px; }
.mb-8 { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-20 { margin-bottom: 20px; }
.text-sm { font-size: 12px; }
.text-base { font-size: 13px; }
.text-gray { color: #9ca3af; }
.text-dark { color: #374151; }
.text-blue { color: #2563eb; }
.text-green { color: #10b981; }
.text-red { color: #ef4444; }
.text-bold { font-weight: 600; }
.w-full { width: 100%; }
.min-w-0 { min-width: 0; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cursor-pointer { cursor: pointer; }

/* ===== Tags ===== */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}
.tag-blue  { background: #eff6ff; color: #2563eb; }
.tag-green { background: #f0fdf4; color: #16a34a; }
.tag-orange{ background: #fff7ed; color: #c2410c; }
.tag-gray  { background: #f3f4f6; color: #6b7280; }
.tag-yellow{ background: #fef9c3; color: #a16207; }

/* ===== Toast ===== */
#toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #111827;
  color: #fff;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  transition: transform 0.3s;
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: none;
  white-space: nowrap;
}
#toast.show { transform: translateX(-50%) translateY(0); }

/* ===== Modal Overlay ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease;
}
.modal-box {
  background: #fff;
  border-radius: 12px;
  padding: 28px 32px;
  width: 420px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.modal-title {
  font-size: 16px;
  font-weight: 700;
  color: #111827;
  margin-bottom: 12px;
}
.modal-body {
  font-size: 13px;
  color: #6b7280;
  margin-bottom: 24px;
  line-height: 1.6;
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}