@charset "UTF-8";

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  padding: 20px;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.modal-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: scale(0.96);
  transition: transform 0.2s ease;
}
.modal-content.small { max-width: 360px; }
.modal-content.medium { max-width: 560px; }
.modal-content.large { max-width: 800px; }
.modal-content.xlarge { max-width: 960px; }
.modal-content.full { max-width: 1200px; }
.modal-overlay.open .modal-content {
  transform: scale(1);
}
.modal-small .modal-content { max-width: 360px; }
.modal-large .modal-content { max-width: 800px; }
.modal-full .modal-content { max-width: 1200px; }

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-header h3 {
  font-size: 18px;
  font-weight: 600;
}
.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}
.modal-close:hover { background: rgba(0,0,0,0.05); }

.modal-body {
  padding: 20px;
  overflow-y: auto;
  min-width: 0;
}

.model-history-curve {
  width: 100%;
  min-width: 0;
  overflow: hidden;
}

.model-history-curve .chart-svg {
  width: 100%;
  max-width: 100%;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Field Builder */
.field-builder-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.field-builder-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.field-builder-grid .full-width {
  grid-column: 1 / -1;
}
.field-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: border-color 0.15s ease;
}
.field-card:hover {
  border-color: var(--accent);
}

/* Data Table */
.data-table-container {
  width: 100%;
}
.actions-cell {
  display: flex;
  align-items: center;
  gap: 6px;
}
.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
}
.action-btn:hover {
  background: rgba(0,0,0,0.05);
  color: var(--text-primary);
}
html[data-theme="dark"] .action-btn:hover {
  background: rgba(255,255,255,0.08);
}

/* Chart */
.chart-svg {
  width: 100%;
  height: 320px;
}
.chart-bar { fill: var(--accent); }
.chart-line { fill: none; stroke: var(--accent); stroke-width: 2; }
.chart-dot { fill: var(--accent); }
.chart-axis { stroke: var(--border); stroke-width: 1; }
.chart-axis text { fill: var(--text-secondary); font-size: 11px; }
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}
.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
}
.chart-scatter-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px;
  gap: 12px;
  align-items: center;
}
.chart-scatter-plot {
  min-width: 0;
}
.chart-scatter-canvas {
  position: relative;
  min-width: 0;
}
.chart-y-axis-label {
  position: absolute;
  top: 50%;
  left: 12px;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1;
  white-space: nowrap;
  transform: translate(-50%, -50%) rotate(-90deg);
  transform-origin: center;
  pointer-events: none;
}
.chart-legend.chart-legend-vertical {
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: flex-start;
  justify-content: flex-start;
  align-self: stretch;
  gap: 10px;
  margin-top: 0;
  padding: 72px 0 0 16px;
  border-left: 1px solid var(--border);
  transform: translateX(-48px);
}
@media (max-width: 720px) {
  .chart-scatter-layout {
    grid-template-columns: 1fr;
  }
  .chart-legend.chart-legend-vertical {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    padding: 10px 0 0;
    border-top: 1px solid var(--border);
    border-left: 0;
    transform: none;
  }
}

/* Chat */
.chat-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  height: 100%;
}
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.chat-bubble {
  display: flex;
  gap: 12px;
  max-width: 80%;
}
.chat-bubble.assistant {
  align-self: flex-start;
}
.chat-bubble.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}
.chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}
.chat-bubble.user .chat-avatar {
  background: var(--success);
}
.chat-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 18px;
  border-top-left-radius: 4px;
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.6;
}
.chat-message-content button { margin: 4px 0; }
.chat-message-content .badge { display: inline-block; vertical-align: middle; }
.chat-bubble.user .chat-content {
  background: var(--accent);
  color: #fff;
  border-top-left-radius: 18px;
  border-top-right-radius: 4px;
}
.chat-input-area {
  display: flex;
  gap: 8px;
  padding: 16px;
  border-top: 1px solid var(--border);
}
.chat-input {
  flex: 1;
  min-height: 40px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
}
.chat-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,113,227,0.15);
}

/* ERD */
.erd-container {
  position: relative;
  width: 100%;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
}
.erd-canvas {
  position: relative;
  width: 100%;
  min-height: 600px;
  overflow: auto;
}
.erd-node {
  position: absolute;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 0;
  min-width: 200px;
  max-width: 280px;
  z-index: 2;
  transition: box-shadow 0.15s ease;
  user-select: none;
}
.erd-node:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.14);
  z-index: 5;
}
.erd-node-header {
  font-weight: 600;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  padding: 12px 14px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: move;
  gap: 8px;
}
.erd-node-fields-scrollable {
  max-height: 240px;
  overflow-y: auto;
  padding: 8px 12px 10px;
}
.erd-node-fields-scrollable::-webkit-scrollbar {
  width: 4px;
}
.erd-node-fields-scrollable::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}
.erd-node-field {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: default;
  transition: background 0.1s ease;
  line-height: 1.5;
}
.erd-node-field:hover {
  background: rgba(0,0,0,0.04);
}
html[data-theme="dark"] .erd-node-field:hover {
  background: rgba(255,255,255,0.06);
}
.erd-node-field.key {
  color: var(--accent);
  font-weight: 500;
}
.erd-node-field .field-type {
  color: var(--text-tertiary);
  font-size: 10px;
  flex-shrink: 0;
}
.erd-node-field.dragging {
  opacity: 0.4;
}
.erd-field-drop-target {
  background: rgba(0,113,227,0.08) !important;
  outline: 2px dashed var(--accent);
  outline-offset: -2px;
  border-radius: 4px;
}
.erd-field-role {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  flex-shrink: 0;
}
.erd-field-role.role-param { background: var(--text-tertiary); }
.erd-field-role.role-x { background: var(--accent); }
.erd-field-role.role-y { background: var(--success); }

/* ERD Join Table */
.erd-join-table {
  border-style: dashed !important;
  opacity: 0.85;
}
.erd-join-table .erd-node-header {
  color: var(--text-secondary);
}

/* ERD Relation Form — cleaner multi-row layout */
.erd-relation-form {
  padding: 14px 16px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.erd-relation-form .form-row-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.erd-relation-form select {
  font-size: 13px;
  padding: 6px 10px;
  min-height: 34px;
}

/* ERD Relation Lines */
.erd-relation-line {
  transition: opacity 0.15s ease;
}
.erd-relation-line:hover line:first-of-type + line {
  stroke: var(--accent) !important;
  stroke-width: 2.5 !important;
}
.erd-relation-line.selected line {
  stroke: var(--accent) !important;
  stroke-width: 2.5 !important;
}

/* ERD Legend */
.erd-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

/* ERD Main Table */
.erd-node.main-table {
  border-color: var(--accent);
  border-width: 2px;
  box-shadow: 0 2px 12px rgba(0,113,227,0.08);
}
.erd-node.main-table .erd-node-header {
  background: linear-gradient(135deg, var(--accent)/0.06, transparent);
}

/* ERD Linked Field */
.erd-node-field.linked {
  border-left: 3px solid var(--accent);
  padding-left: 5px;
  background: linear-gradient(90deg, rgba(0,113,227,0.04), transparent);
}

/* ERD Field Hover Highlight (peer field) */
.erd-node-field.link-hover {
  background: rgba(0,113,227,0.12) !important;
  outline: 1px solid var(--accent);
  outline-offset: -1px;
  border-radius: 4px;
  transition: background 0.15s ease;
}

/* ERD Field Connection Lines */
.erd-field-connection {
  transition: opacity 0.15s ease;
}
.erd-field-connection:hover path:nth-child(2) {
  stroke: var(--accent) !important;
  stroke-width: 2.5 !important;
  opacity: 1 !important;
}

/* ERD Relation Badge */
.erd-relation-badge {
  display: inline-flex;
  align-items: center;
  font-size: 10px;
  font-weight: 500;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--accent)/0.1;
  color: var(--accent);
}

/* Toast Notification System */
#toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
  pointer-events: none;
  max-width: 480px;
  width: calc(100% - 40px);
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-primary);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  pointer-events: auto;
  animation: toast-in 0.3s ease;
  cursor: pointer;
  transition: transform 0.15s ease;
}
.toast:hover { transform: scale(1.01); }
.toast.toast-out { animation: toast-out 0.3s ease forwards; }

.toast-success { border-left: 3px solid var(--success); }
.toast-error   { border-left: 3px solid var(--danger); }
.toast-warning { border-left: 3px solid var(--warning); }
.toast-info    { border-left: 3px solid var(--accent); }

.toast-success i { color: var(--success); }
.toast-error i   { color: var(--danger); }
.toast-warning i { color: var(--warning); }
.toast-info i    { color: var(--accent); }

/* Legacy sync toast (kept for tableRelation.js compatibility) */
.sync-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-primary);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  z-index: 200;
  animation: toast-in 0.3s ease;
}
.sync-toast.toast-out {
  animation: toast-out 0.3s ease forwards;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(16px); }
}

/* Impact Warning */
.impact-warning {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(255,149,0,0.08);
  border: 1px solid rgba(255,149,0,0.25);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--warning);
  margin-bottom: 12px;
}
.impact-warning i {
  flex-shrink: 0;
  margin-top: 1px;
}

/* Impact Danger — for confirmDanger dialogs */
.impact-danger {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(255,59,48,0.08);
  border: 1px solid rgba(255,59,48,0.25);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--danger);
  margin-bottom: 12px;
}
.impact-danger i {
  flex-shrink: 0;
  margin-top: 1px;
}

/* Progress bar */
.progress-bar {
  height: 8px;
  background: rgba(0,0,0,0.06);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.3s ease;
}

/* Utility */
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-secondary { color: var(--text-secondary); }

.bg-accent { background: var(--accent); }
.bg-danger { background: var(--danger); }
.bg-success { background: var(--success); }
.bg-warning { background: var(--warning); }

.border-theme { border-color: var(--border); }

/* Library / filter tags */
.tag-chip {
  display: inline-block;
  transition: all 0.15s ease;
}
.tag-chip:hover {
  border-color: var(--accent);
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Filter checkbox accent */
.filter-cb {
  accent-color: var(--accent);
}

.result-card {
  transition: all 0.15s ease;
}

/* Button loading state */
.btn-loading {
  pointer-events: none;
  opacity: 0.85;
  position: relative;
}
.btn-loading::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
  margin-right: 6px;
  flex-shrink: 0;
}
@keyframes btn-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@media (max-width: 767px) {
  .field-builder-grid {
    grid-template-columns: 1fr;
  }
  .modal-content {
    max-height: 95vh;
  }
  .chat-bubble {
    max-width: 90%;
  }
}