/* ===== UI CORE ===== */
.ui-page #page-wrapper {
  --ui-bg: #eef2ff;
  --ui-surface: rgba(255, 255, 255, 0.95);
  --ui-surface-2: #ffffff;
  --ui-surface-3: #f8fbff;
  --ui-text: #0f172a;
  --ui-muted: #64748b;
  --ui-border: #dbe4f0;
  --ui-primary: #2563eb;
  --ui-primary-2: #1d4ed8;
  --ui-info: #22d3ee;
  --ui-success: #16a34a;
  --ui-warning: #f59e0b;
  --ui-danger: #ef4444;
  --ui-canvas-bg: #0b1526;
  --ui-overlay: rgba(15, 23, 42, 0.84);
  --ui-shadow: 0 14px 40px rgba(15, 23, 42, 0.1);
  --ui-radius: 10px;
  --ui-radius-lg: 14px;
  --ui-btn-height: 30px;
  --ui-font-size: 12px;
  --ui-toolbar-size: 11.5px;
  --ui-font: var(--ui-font-size);
  --ui-btn-h: var(--ui-btn-height);
  --ui-icon: 14px;
  --bg: var(--ui-bg);
  --panel: var(--ui-surface);
  --panel-2: var(--ui-surface-2);
  --panel-3: var(--ui-surface-3);
  --text: var(--ui-text);
  --muted: var(--ui-muted);
  --border: var(--ui-border);
  --primary: var(--ui-primary);
  --primary-2: var(--ui-primary-2);
  --success: var(--ui-success);
  --warning: var(--ui-warning);
  --danger: var(--ui-danger);
  --canvas-bg: var(--ui-canvas-bg);
  --overlay: var(--ui-overlay);
  --shadow: var(--ui-shadow);
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.08), transparent 28%), var(--ui-bg);
  color: var(--ui-text);
  font-family: "Inter", "Segoe UI Variable", "Segoe UI", Arial, sans-serif;
  font-size: var(--ui-font-size);
}

.ui-page #page-wrapper,
.ui-page #page-wrapper *:not(.fa):not(.fas):not(.far):not(.fab):not(.fal):not([class^="fa-"]):not([class*=" fa-"]) {
  font-family: "Inter", "Segoe UI Variable", "Segoe UI", Arial, sans-serif !important;
}

.ui-page #page-wrapper .fa,
.ui-page #page-wrapper .fas,
.ui-page #page-wrapper .far,
.ui-page #page-wrapper .fab,
.ui-page #page-wrapper .fal,
.ui-page #page-wrapper [class^="fa-"],
.ui-page #page-wrapper [class*=" fa-"] {
  font-family: "Font Awesome 5 Free", "Font Awesome 5 Brands", "FontAwesome" !important;
}

.ui-page.ui-dark #page-wrapper {
  --ui-bg: #0b1220;
  --ui-surface: rgba(15, 23, 42, 0.95);
  --ui-surface-2: #111827;
  --ui-surface-3: #0f1a2e;
  --ui-text: #e5eefb;
  --ui-muted: #93a4bc;
  --ui-border: #223148;
  --ui-primary: #60a5fa;
  --ui-primary-2: #3b82f6;
  --ui-success: #34d399;
  --ui-warning: #fbbf24;
  --ui-danger: #f87171;
  --ui-canvas-bg: #0b1526;
  --ui-overlay: rgba(2, 6, 23, 0.88);
}

.ui-shell,
.ui-page #page-wrapper .app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 10px;
  min-height: 100dvh;
  padding: 10px;
}

.ui-shell--three,
.ui-page #page-wrapper .layout-3col {
  grid-template-columns: 300px minmax(0, 1fr) 360px;
}

.ui-section,
.ui-page #page-wrapper .group {
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-lg);
  background: var(--ui-surface-2);
}

.ui-title-row,
.ui-page #page-wrapper .group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--ui-text);
  font-size: var(--ui-font-size);
  font-weight: 800;
  line-height: 1.25;
}

.ui-muted,
.ui-page #page-wrapper .help,
.ui-page #page-wrapper .file-sub,
.ui-page #page-wrapper .entity-meta,
.ui-page #page-wrapper .layer-meta,
.ui-page #page-wrapper .summary-meta {
  color: var(--ui-muted);
}

.ui-btn,
.ui-page #page-wrapper .toolbar-btn,
.ui-page #page-wrapper .compact-btn,
.ui-page #page-wrapper .compact-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: var(--ui-btn-height);
  padding: 0 9px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ui-text);
  font-size: var(--ui-toolbar-size);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease, transform 0.16s ease;
}

.ui-btn:hover,
.ui-page #page-wrapper .toolbar-btn:hover,
.ui-page #page-wrapper .compact-btn:hover,
.ui-page #page-wrapper .compact-action-btn:hover {
  transform: translateY(-1px);
  background: rgba(148, 163, 184, 0.12);
}

.ui-btn:active,
.ui-page #page-wrapper .toolbar-btn:active,
.ui-page #page-wrapper .compact-btn:active,
.ui-page #page-wrapper .compact-action-btn:active {
  transform: translateY(0);
}

.ui-page #page-wrapper .left-panel #chooseFileBtn,
.ui-page #page-wrapper .left-panel #themeBtn,
.ui-page #page-wrapper .left-panel #clearBtn {
  align-items: center !important;
  justify-content: center !important;
  gap: 4px !important;
  line-height: 1 !important;
}

.ui-input,
.ui-page #page-wrapper .input,
.ui-page #page-wrapper .compact-input {
  width: 100%;
  min-height: var(--ui-btn-height);
  padding: 6px 8px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius);
  outline: none;
  background: var(--ui-surface-2);
  color: var(--ui-text);
}

.ui-input:focus,
.ui-page #page-wrapper .input:focus,
.ui-page #page-wrapper .compact-input:focus {
  border-color: var(--ui-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.ui-tab,
.ui-page #page-wrapper .panel-tab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: 30px;
  flex: 1 1 0;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--ui-muted);
  font-size: var(--ui-toolbar-size);
  font-weight: 700;
  cursor: pointer;
}

.ui-tab.active,
.ui-page #page-wrapper .panel-tab-btn.active {
  background: rgba(37, 99, 235, 0.14);
  color: var(--ui-primary);
}

.ui-menu-item.is-toggle::after,
.ui-page #page-wrapper .dropdown-item.is-toggle::after {
  content: "";
  width: 26px;
  height: 15px;
  margin-left: 8px;
  flex: 0 0 26px;
  border: 1px solid rgba(148, 163, 184, 0.34);
  border-radius: 999px;
  background:
    radial-gradient(circle at 7px 50%, #cbd5e1 0 4px, transparent 4.5px),
    rgba(15, 23, 42, 0.86);
}

.ui-menu-item.is-toggle.active::after,
.ui-page #page-wrapper .dropdown-item.is-toggle.active::after {
  border-color: rgba(96, 165, 250, 0.72);
  background:
    radial-gradient(circle at 19px 50%, #ffffff 0 4px, transparent 4.5px),
    linear-gradient(135deg, #2563eb, #60a5fa);
}

.ui-list,
.ui-page #page-wrapper .list-wrap,
.ui-page #page-wrapper .entity-list,
.ui-page #page-wrapper .layer-list,
.ui-page #page-wrapper .summary-list {
  min-height: 0;
  overflow: auto;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius);
  background: var(--ui-surface-2);
}

.ui-canvas-shell,
.ui-page #page-wrapper .canvas-wrap {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  background: var(--ui-canvas-bg);
}

.ui-canvas-shell canvas,
.ui-page #page-wrapper .canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.ui-overlay,
.ui-page #page-wrapper .overlay {
  position: absolute;
  z-index: 4;
  max-width: 360px;
  padding: 9px 11px;
  border-radius: var(--ui-radius);
  background: var(--ui-overlay);
  color: #ffffff;
  font-size: var(--ui-font-size);
  line-height: 1.4;
  white-space: pre-line;
  pointer-events: none;
}

.ui-statusbar,
.ui-page #page-wrapper .statusbar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  padding: 8px 10px;
  border-top: 1px solid var(--ui-border);
  background: var(--ui-surface);
  color: var(--ui-muted);
}

.ui-toolbar-divider,
.ui-page #page-wrapper .toolbar-divider {
  width: 1px;
  height: 18px;
  flex: 0 0 auto;
  background: rgba(148, 163, 184, 0.28);
}

.ui-dropdown {
  position: relative;
  display: inline-flex;
}

.ui-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 5px);
  left: 0;
  min-width: 158px;
  z-index: 300;
  padding: 5px;
  border: 1px solid rgba(96, 165, 250, 0.18);
  border-radius: var(--ui-radius);
  background: rgba(11, 21, 38, 0.96);
  box-shadow: 0 16px 32px rgba(2, 6, 23, 0.45);
  backdrop-filter: blur(10px);
}

.ui-dropdown:hover .ui-dropdown-menu,
.ui-dropdown.active .ui-dropdown-menu {
  display: block;
}

.ui-menu-item,
.ui-page #page-wrapper .dropdown-item {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  min-height: 26px;
  padding: 4px 8px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #dbe7f5;
  font-size: var(--ui-toolbar-size);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
}

.ui-menu-item:hover,
.ui-page #page-wrapper .dropdown-item:hover {
  background: rgba(148, 163, 184, 0.12);
  color: #ffffff;
}

@media (max-width: 1200px) {

  .ui-shell,
  .ui-shell--three,
  .ui-page #page-wrapper .app,
  .ui-page #page-wrapper .layout-3col {
    grid-template-columns: 1fr;
    height: auto;
    overflow: auto;
  }

  .ui-statusbar,
  .ui-page #page-wrapper .statusbar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* KET THUC H. VUNG HEADER */

/* ---------------------------------- */