/* Sage Modern UI Theme System
   Dark/Light theme switching via CSS custom properties
   Applied to <html> element data-theme attribute
*/

/* ===== Dark Theme (default) ===== */
:root,
[data-theme="dark"] {
  --sage-bg-primary: #0B1120;
  --sage-bg-secondary: #111827;
  --sage-bg-card: #1E293B;
  --sage-bg-hover: #334155;
  --sage-bg-input: #0F172A;
  --sage-bg-toolbar: #111827;

  --sage-border-primary: #334155;
  --sage-border-weak: #1E293B;
  --sage-border-focus: #3B82F6;

  --sage-text-primary: #F1F5F9;
  --sage-text-secondary: #94A3B8;
  --sage-text-muted: #64748B;
  --sage-text-inverse: #0F172A;

  --sage-brand: #3B82F6;
  --sage-brand-hover: #2563EB;
  --sage-success: #22C55E;
  --sage-warning: #F59E0B;
  --sage-danger: #EF4444;
  --sage-info: #06B6D4;

  --sage-sidebar-width: 240px;
  --sage-sidebar-collapsed-width: 64px;
  --sage-topbar-height: 56px;
  --sage-radius: 12px;
  --sage-radius-sm: 8px;

  --sage-shadow-card: 0 1px 3px rgba(0,0,0,0.3);
  --sage-shadow-lg: 0 4px 12px rgba(0,0,0,0.4);
}

/* ===== Light Theme ===== */
[data-theme="light"] {
  --sage-bg-primary: #F8FAFC;
  --sage-bg-secondary: #FFFFFF;
  --sage-bg-card: #FFFFFF;
  --sage-bg-hover: #F1F5F9;
  --sage-bg-input: #F8FAFC;
  --sage-bg-toolbar: #FFFFFF;

  --sage-border-primary: #E2E8F0;
  --sage-border-weak: #F1F5F9;
  --sage-border-focus: #3B82F6;

  --sage-text-primary: #0F172A;
  --sage-text-secondary: #475569;
  --sage-text-muted: #94A3B8;
  --sage-text-inverse: #FFFFFF;

  --sage-brand: #3B82F6;
  --sage-brand-hover: #2563EB;
  --sage-success: #16A34A;
  --sage-warning: #D97706;
  --sage-danger: #DC2626;
  --sage-info: #0891B2;

  --sage-shadow-card: 0 1px 3px rgba(0,0,0,0.08);
  --sage-shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

/* ===== Global Overrides ===== */
body {
  margin: 0;
  padding: 0;
  background-color: var(--sage-bg-primary);
  color: var(--sage-text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* Ensure theme variables override bricks.css hardcoded values */
[data-theme="dark"] body {
  background-color: var(--sage-bg-primary);
  color: var(--sage-text-primary);
}

[data-theme="light"] body {
  background-color: var(--sage-bg-primary);
  color: var(--sage-text-primary);
}

/* ===== Shell Layout ===== */
.sage-shell {
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--sage-bg-primary);
  color: var(--sage-text-primary);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.sage-topbar {
  height: var(--sage-topbar-height);
  background-color: var(--sage-bg-secondary);
  border-bottom: 1px solid var(--sage-border-primary);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  flex-shrink: 0;
  z-index: 100;
}

.sage-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.sage-sidebar {
  width: var(--sage-sidebar-width);
  background-color: var(--sage-bg-secondary);
  border-right: 1px solid var(--sage-border-primary);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  flex-shrink: 0;
  transition: width 0.3s ease, transform 0.3s ease;
  position: relative;
  z-index: 50;
}

.sage-sidebar.collapsed {
  width: var(--sage-sidebar-collapsed-width);
}

.sage-sidebar.collapsed .sidebar-text {
  opacity: 0;
  width: 0;
  overflow: hidden;
}

/* Menu collapsed state - hide text labels, center icons */
.menu-collapsed .filler {
  display: none !important;
}
.menu-collapsed .menuitem {
  justify-content: center;
  padding: 8px 0;
}
.menu-collapsed .menuitem:hover {
  background-color: var(--sage-bg-hover);
}

/* Mobile: sidebar as overlay */
@media (max-width: 768px) {
  .sage-sidebar {
    position: fixed;
    left: 0;
    top: var(--sage-topbar-height);
    height: calc(100vh - var(--sage-topbar-height));
    transform: translateX(0);
    box-shadow: var(--sage-shadow-lg);
  }

  .sage-sidebar.collapsed {
    transform: translateX(-100%);
    width: var(--sage-sidebar-width); /* Keep full width when hidden on mobile */
  }

  .sage-main {
    width: 100%;
  }
}

.sage-main {
  flex: 1;
  overflow: hidden;
  overflow-x: hidden;
  padding: 24px;
  background-color: var(--sage-bg-primary);
  min-width: 0; /* Prevent flex item from overflowing */
  min-height: 0; /* Allow flex children to shrink below content size */
  transition: margin-left 0.3s ease;
}

/* Responsive padding for mobile */
@media (max-width: 768px) {
  .sage-main {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .sage-main {
    padding: 12px;
  }
}

/* ===== Stat Cards ===== */
.stat-card {
  background-color: var(--sage-bg-card);
  border-radius: var(--sage-radius);
  padding: 20px;
  border: 1px solid var(--sage-border-primary);
  box-shadow: var(--sage-shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease;
  cursor: pointer;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--sage-shadow-lg);
}

.stat-card .stat-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--sage-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--sage-text-primary);
  line-height: 1.2;
}

.stat-card .stat-label {
  font-size: 14px;
  color: var(--sage-text-secondary);
  margin-top: 4px;
}

.stat-card .stat-trend {
  font-size: 13px;
  margin-top: 8px;
}

.stat-card .stat-trend.up {
  color: var(--sage-success);
}

.stat-card .stat-trend.down {
  color: var(--sage-danger);
}

/* ===== Quick Links ===== */
.quick-link {
  background-color: var(--sage-bg-card);
  border-radius: var(--sage-radius);
  padding: 20px;
  border: 1px solid var(--sage-border-primary);
  box-shadow: var(--sage-shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease;
  cursor: pointer;
  text-align: center;
}

.quick-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--sage-shadow-lg);
  border-color: var(--sage-brand);
}

/* ===== Section Headers ===== */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--sage-text-primary);
}

/* ===== Buttons ===== */
.sage-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--sage-radius-sm);
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background-color 0.15s ease;
}

.sage-btn-primary {
  background-color: var(--sage-brand);
  color: #FFFFFF;
}

.sage-btn-primary:hover {
  background-color: var(--sage-brand-hover);
}

.sage-btn-ghost {
  background-color: transparent;
  color: var(--sage-text-secondary);
  border: 1px solid var(--sage-border-primary);
}

.sage-btn-ghost:hover {
  background-color: var(--sage-bg-hover);
  color: var(--sage-text-primary);
}

/* ===== Theme Toggle Button ===== */
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--sage-border-primary);
  background-color: transparent;
  color: var(--sage-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.theme-toggle:hover {
  background-color: var(--sage-bg-hover);
  color: var(--sage-text-primary);
}

/* ===== Sidebar Toggle ===== */
.sidebar-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--sage-radius-sm);
  border: 1px solid var(--sage-border-primary);
  background-color: transparent;
  color: var(--sage-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease;
}

.sidebar-toggle:hover {
  background-color: var(--sage-bg-hover);
  color: var(--sage-text-primary);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--sage-text-secondary);
}

.breadcrumb a {
  color: var(--sage-text-secondary);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--sage-brand);
}

.breadcrumb .separator {
  color: var(--sage-text-muted);
}

.breadcrumb .current {
  color: var(--sage-text-primary);
  font-weight: 500;
}

/* ===== DataViewer Overrides for theme ===== */
.tabular-row {
  cursor: pointer;
}

[data-theme="dark"] .dataviewer-toolbar,
[data-theme="dark"] .tabular,
[data-theme="dark"] .data-row,
[data-theme="dark"] body {
  background-color: var(--sage-bg-primary);
  color: var(--sage-text-primary);
}

[data-theme="dark"] .tabular-header-row {
  background-color: var(--sage-bg-secondary);
  color: var(--sage-text-secondary);
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .tabular-row {
  color: var(--sage-text-primary);
}

[data-theme="dark"] .tabular-row:nth-child(odd) {
  background-color: var(--sage-bg-card);
}

[data-theme="dark"] .tabular-row:nth-child(even) {
  background-color: var(--sage-bg-secondary);
}

[data-theme="dark"] .tabular-row-selected {
  background-color: var(--sage-bg-hover) !important;
}
[data-theme="dark"] .tabular-row-selected,
[data-theme="dark"] .tabular-row-selected .tabular-cell {
  color: var(--sage-brand) !important;
}

/* Light theme selected row */
[data-theme="light"] .tabular-row-selected {
  background-color: #E0F2FE !important;
}
[data-theme="light"] .tabular-row-selected,
[data-theme="light"] .tabular-row-selected .tabular-cell {
  color: #0369A1 !important;
}

[data-theme="dark"] .tabular-cell {
  border-color: var(--sage-border-weak);
  color: var(--sage-text-primary);
}

[data-theme="dark"] .popup,
[data-theme="dark"] .modal,
[data-theme="dark"] .message {
  background-color: var(--sage-bg-card);
  color: var(--sage-text-primary);
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .titlebar {
  background-color: var(--sage-bg-secondary);
}

[data-theme="dark"] .inputbox {
  background-color: var(--sage-bg-input);
  color: var(--sage-text-primary);
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .htoolbar,
[data-theme="dark"] .vtoolbar {
  background-color: var(--sage-bg-toolbar);
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .accordion-item {
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .accordion-item:nth-child(odd) {
  background-color: var(--sage-bg-card);
}

[data-theme="dark"] .accordion-item:nth-child(even) {
  background-color: var(--sage-bg-secondary);
}

[data-theme="dark"] .accordion-item-header {
  background-color: var(--sage-bg-secondary);
}

[data-theme="dark"] .accordion-item-info {
  background-color: var(--sage-bg-card);
}

[data-theme="dark"] .accordion-item-selected {
  background-color: var(--sage-bg-hover);
}

[data-theme="dark"] .accordion-item-info-selected {
  background-color: var(--sage-bg-hover);
}

[data-theme="dark"] .card {
  background-color: var(--sage-bg-card);
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .subcard {
  background-color: var(--sage-bg-secondary);
}

[data-theme="dark"] .curpos {
  background-color: var(--sage-bg-hover);
}

[data-theme="dark"] .selected {
  background-color: var(--sage-bg-hover);
}

[data-theme="dark"] .tabpanel {
  background-color: var(--sage-bg-card);
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .tabpanel-content {
  background-color: var(--sage-bg-secondary);
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .toolbar-button {
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .toolbar-button-active {
  background-color: var(--sage-bg-hover);
}

[data-theme="dark"] .auto-textarea {
  background-color: var(--sage-bg-input);
  color: var(--sage-text-primary);
  border-color: var(--sage-border-primary);
}

[data-theme="dark"] .droparea {
  border-color: var(--sage-border-primary);
  color: var(--sage-text-secondary);
}

[data-theme="dark"] .droparea:hover {
  border-color: var(--sage-brand);
  color: var(--sage-brand);
  background: var(--sage-bg-hover);
}

[data-theme="dark"] .thinking-content {
  background-color: var(--sage-bg-secondary);
}

[data-theme="dark"] .resp-error {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--sage-danger);
}

[data-theme="dark"] .resp-content {
  background-color: var(--sage-bg-card);
  color: var(--sage-text-primary);
}

[data-theme="dark"] .llm_title {
  background-color: var(--sage-bg-hover);
}

[data-theme="dark"] .progress-container {
  background-color: var(--sage-bg-secondary);
}

[data-theme="dark"] pre {
  background-color: var(--sage-bg-secondary);
  color: var(--sage-text-primary);
}

[data-theme="dark"] .llm_msg {
  background-color: var(--sage-bg-card);
  color: var(--sage-text-primary);
  box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .user_msg {
  background-color: var(--sage-bg-hover);
  color: var(--sage-text-primary);
}

[data-theme="light"] .dataviewer-toolbar,
[data-theme="light"] .tabular,
[data-theme="light"] .data-row,
[data-theme="light"] body {
  background-color: var(--sage-bg-card);
  color: var(--sage-text-primary);
}

[data-theme="light"] .tabular-header-row {
  background-color: var(--sage-bg-hover);
  color: var(--sage-text-secondary);
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .tabular-row {
  color: var(--sage-text-primary);
}

[data-theme="light"] .tabular-row:nth-child(odd) {
  background-color: #f9fafb;
}

[data-theme="light"] .tabular-row:nth-child(even) {
  background-color: var(--sage-bg-card);
}

[data-theme="light"] .tabular-row-selected {
  color: var(--sage-brand-hover);
}

[data-theme="light"] .tabular-cell {
  border-color: var(--sage-border-weak);
  color: var(--sage-text-primary);
}

[data-theme="light"] .popup,
[data-theme="light"] .modal,
[data-theme="light"] .message {
  background-color: var(--sage-bg-card);
  color: var(--sage-text-primary);
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .titlebar {
  background-color: var(--sage-bg-secondary);
}

[data-theme="light"] .inputbox {
  background-color: var(--sage-bg-input);
  color: var(--sage-text-primary);
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .htoolbar,
[data-theme="light"] .vtoolbar {
  background-color: var(--sage-bg-toolbar);
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .accordion-item {
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .accordion-item:nth-child(odd) {
  background-color: var(--sage-bg-card);
}

[data-theme="light"] .accordion-item:nth-child(even) {
  background-color: #f9fafb;
}

[data-theme="light"] .accordion-item-header {
  background-color: var(--sage-bg-hover);
}

[data-theme="light"] .accordion-item-info {
  background-color: var(--sage-bg-card);
}

[data-theme="light"] .accordion-item-selected {
  background-color: var(--sage-bg-hover);
}

[data-theme="light"] .accordion-item-info-selected {
  background-color: var(--sage-bg-hover);
}

[data-theme="light"] .card {
  background-color: var(--sage-bg-card);
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .subcard {
  background-color: #f9fafb;
}

[data-theme="light"] .curpos {
  background-color: var(--sage-bg-hover);
}

[data-theme="light"] .selected {
  background-color: var(--sage-bg-hover);
}

[data-theme="light"] .tabpanel {
  background-color: var(--sage-bg-card);
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .tabpanel-content {
  background-color: var(--sage-bg-secondary);
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .toolbar-button {
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .toolbar-button-active {
  background-color: var(--sage-bg-hover);
}

[data-theme="light"] .auto-textarea {
  background-color: var(--sage-bg-input);
  color: var(--sage-text-primary);
  border-color: var(--sage-border-primary);
}

[data-theme="light"] .droparea {
  border-color: var(--sage-border-primary);
  color: var(--sage-text-secondary);
}

[data-theme="light"] .droparea:hover {
  border-color: var(--sage-brand);
  color: var(--sage-brand);
  background: var(--sage-bg-hover);
}

[data-theme="light"] .thinking-content {
  background-color: var(--sage-bg-secondary);
}

[data-theme="light"] .resp-error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--sage-danger);
}

[data-theme="light"] .resp-content {
  background-color: var(--sage-bg-card);
  color: var(--sage-text-primary);
}

[data-theme="light"] .llm_title {
  background-color: var(--sage-bg-hover);
}

[data-theme="light"] .progress-container {
  background-color: var(--sage-bg-hover);
}

[data-theme="light"] pre {
  background-color: var(--sage-bg-secondary);
  color: var(--sage-text-primary);
}

[data-theme="light"] .llm_msg {
  background-color: var(--sage-bg-card);
  color: var(--sage-text-primary);
}

[data-theme="light"] .user_msg {
  background-color: var(--sage-bg-hover);
  color: var(--sage-text-primary);
}

[data-theme="light"] .tabular { background-color: #f5f5f5; color: #1E293B; }
[data-theme="light"] .tabular-header-row { background-color: #E2E8F0; color: #0F172A; font-weight: 600; }
[data-theme="light"] .tabular-header-row .tabular-cell { color: #0F172A; }
[data-theme="light"] .tabular-row { color: #1E293B; }
[data-theme="light"] .tabular-row:nth-child(odd) { background-color: #FFFFFF; }
[data-theme="light"] .tabular-row:nth-child(even) { background-color: #F8FAFC; }
[data-theme="light"] .tabular-cell { border-color: #E2E8F0; color: #1E293B; }
[data-theme="light"] .card { color: #1E293B; }
[data-theme="light"] .inputbox { color: #1E293B; background-color: #FFFFFF; }
[data-theme="light"] .popup, [data-theme="light"] .modal { color: #1E293B; }
[data-theme="light"] .accordion-item-info { color: #475569; }
[data-theme="light"] .toolbar-button { color: #334155; }
[data-theme="light"] .message { color: #1E293B; }

/* ===== Menu Overrides ===== */
[data-theme="dark"] .menu-item {
  color: var(--sage-text-secondary);
}

[data-theme="dark"] .menu-item:hover,
[data-theme="dark"] .menu-item.active {
  background-color: var(--sage-bg-hover);
  color: var(--sage-text-primary);
}

[data-theme="light"] .menu-item {
  color: var(--sage-text-secondary);
}

[data-theme="light"] .menu-item:hover,
[data-theme="light"] .menu-item.active {
  background-color: var(--sage-bg-hover);
  color: var(--sage-brand);
}

/* ===== Utility Classes ===== */
.sage-brand-title {
  color: var(--sage-text-primary);
  font-weight: bold;
}

.sage-text-secondary {
  color: var(--sage-text-secondary);
}

/* ===== Responsive - Topbar ===== */
@media (max-width: 768px) {
  .sage-topbar {
    padding: 0 8px;
    gap: 6px;
  }
  .sage-brand-title {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .sage-brand-title {
    display: none;
  }
}

/* ===== Responsive - Stat Cards ===== */
@media (max-width: 768px) {
  .stat-card {
    padding: 14px;
  }
  .stat-card .stat-value {
    font-size: 22px;
  }
  .stat-card .stat-label {
    font-size: 12px;
  }
  .stat-card .stat-icon {
    width: 32px;
    height: 32px;
    margin-bottom: 8px;
  }
  .quick-link {
    padding: 14px;
  }
  .section-title {
    font-size: 16px;
  }
}
