.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(2px);
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 90%;
  max-width: 400px;
  box-shadow: var(--shadow);
  animation: modalFadeIn 0.2s ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  margin: 0;
  font-size: 1.125rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  min-width: auto;
  color: var(--text-sub);
}

.modal-close:hover {
  color: var(--text);
}

.modal-body {
  margin-bottom: 20px;
  line-height: 1.6;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.tooltip {
  position: relative;
  display: inline-block;
  cursor: help;
}

.tooltip-text {
  visibility: hidden;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 12px;
  z-index: 1001;
  opacity: 0;
  transition: opacity 0.2s;
}

.tooltip-text::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -4px;
  border-width: 4px;
  border-style: solid;
  border-color: rgba(0, 0, 0, 0.8) transparent transparent transparent;
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--main);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

.loading-sm {
  width: 14px;
  height: 14px;
  border-width: 2px;
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.loading-overlay.active {
  display: flex;
}

.loading-overlay-content {
  background: var(--card-bg);
  padding: 24px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.loading-overlay-content .loading {
  width: 36px;
  height: 36px;
  border-width: 3px;
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  z-index: 1001;
  font-size: 14px;
  animation: toastFadeIn 0.2s ease;
}

.toast-success {
  background: rgba(0, 180, 42, 0.9);
}

.toast-warning {
  background: rgba(255, 193, 7, 0.9);
  color: #333;
}

.toast-danger {
  background: rgba(245, 63, 63, 0.9);
}

.toast-info {
  background: rgba(0, 122, 255, 0.9);
}

.toast-top {
  bottom: auto;
  top: 20px;
}

.toast-left {
  left: 20px;
  transform: translateX(0);
}

.toast-right {
  left: auto;
  right: 20px;
  transform: translateX(0);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes toastFadeIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

.popconfirm {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1500;
}

.popconfirm.active {
  display: flex;
}

.popconfirm-content {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 90%;
  max-width: 380px;
  box-shadow: var(--shadow);
  animation: modalFadeIn 0.2s ease;
}

.popconfirm-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.popconfirm-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(245, 63, 63, 0.1);
  color: var(--danger);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.popconfirm-title {
  font-weight: 600;
  font-size: 1.125rem;
}

.popconfirm-body {
  margin-bottom: 20px;
  color: var(--text-sub);
}

.popconfirm-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.popover {
  position: relative;
  display: inline-block;
}

.popover-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  min-width: 200px;
  box-shadow: var(--shadow);
  z-index: 1001;
  margin-top: 8px;
}

.popover-content::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 16px;
  border-width: 6px;
  border-style: solid;
  border-color: transparent transparent var(--border) transparent;
}

.popover-content::after {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 17px;
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent var(--card-bg) transparent;
}

.popover.active .popover-content {
  display: block;
}

.popover-title {
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 14px;
}

.popover-body {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.5;
}

.popover.right .popover-content {
  top: 0;
  left: 100%;
  margin-top: 0;
  margin-left: 8px;
}

.popover.right .popover-content::before {
  bottom: auto;
  left: auto;
  right: 100%;
  top: 16px;
  margin-left: 0;
  border-color: transparent var(--border) transparent transparent;
}

.popover.right .popover-content::after {
  bottom: auto;
  left: auto;
  right: 100%;
  top: 17px;
  margin-left: 0;
  border-color: transparent var(--card-bg) transparent transparent;
}

.popover.left .popover-content {
  top: 0;
  left: auto;
  right: 100%;
  margin-top: 0;
  margin-right: 8px;
}

.popover.left .popover-content::before {
  bottom: auto;
  left: 100%;
  top: 16px;
  margin-left: 0;
  border-color: transparent transparent transparent var(--border);
}

.popover.left .popover-content::after {
  bottom: auto;
  left: 100%;
  top: 17px;
  margin-left: 0;
  border-color: transparent transparent transparent var(--card-bg);
}

.popover.top .popover-content {
  top: auto;
  bottom: 100%;
  left: 0;
  margin-top: 0;
  margin-bottom: 8px;
}

.popover.top .popover-content::before {
  bottom: auto;
  top: 100%;
  left: 16px;
  border-color: transparent transparent var(--border) transparent;
}

.popover.top .popover-content::after {
  bottom: auto;
  top: 100%;
  left: 17px;
  border-color: transparent transparent var(--card-bg) transparent;
}

@media (max-width: 480px) {
  .modal-content,
  .popconfirm-content {
    width: 95%;
    padding: 20px;
  }

  .toast {
    width: 90%;
    text-align: center;
  }
}