/* ============================================================================
   Contigo Data Explorer — Base Design System
   ============================================================================ */

:root {
  /* Core palette */
  --bg: #f4f5f7;
  --bg-raised: #ffffff;
  --bg-sunken: #ebecf0;
  --border: #dfe1e6;
  --border-strong: #c1c7d0;
  --text: #172b4d;
  --text-secondary: #5e6c84;
  --text-muted: #97a0af;
  --text-inverse: #ffffff;

  /* Accent */
  --accent: #0052cc;
  --accent-hover: #0747a6;
  --accent-soft: #deebff;
  --accent-text: #0052cc;

  /* Status colors */
  --green: #00875a;
  --green-soft: #e3fcef;
  --red: #de350b;
  --red-soft: #ffebe6;
  --yellow: #ff991f;
  --yellow-soft: #fffae6;
  --blue: #0065ff;
  --blue-soft: #deebff;
  --purple: #6554c0;
  --purple-soft: #eae6ff;
  --teal: #00b8d9;

  /* Layout */
  --sidebar-width: 260px;
  --topbar-height: 52px;
  --radius: 6px;
  --radius-lg: 10px;

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(9,30,66,0.08);
  --shadow-md: 0 4px 12px rgba(9,30,66,0.08);
  --shadow-lg: 0 8px 24px rgba(9,30,66,0.12);
  --shadow-xl: 0 12px 40px rgba(9,30,66,0.15);
}

[data-theme="dark"] {
  --bg: #1b1f23;
  --bg-raised: #24292e;
  --bg-sunken: #161a1d;
  --border: #373e47;
  --border-strong: #4a5260;
  --text: #e6edf3;
  --text-secondary: #9ba4af;
  --text-muted: #6e7681;
  --text-inverse: #1b1f23;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --accent-soft: #0d2240;
  --accent-text: #58a6ff;
  --green: #3fb950;
  --green-soft: #0d2517;
  --red: #f85149;
  --red-soft: #3d1214;
  --yellow: #d29922;
  --yellow-soft: #3b2e00;
  --blue: #58a6ff;
  --blue-soft: #0d2240;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.4);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  display: flex;
  overflow: hidden;
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-raised);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
.brand-icon {
  font-size: 22px;
  color: var(--accent);
}
.brand-text {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-apps {
  flex: 1;
  padding: 8px 0;
}

.app-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
}
.app-btn:hover { background: var(--accent-soft); color: var(--accent-text); }
.app-btn.active { color: var(--accent-text); background: var(--accent-soft); }
.app-btn.disabled { opacity: 0.4; cursor: not-allowed; }
.app-btn.disabled:hover { background: transparent; color: var(--text-secondary); }
.app-btn-icon { font-size: 18px; }
.app-btn-label small { font-weight: 400; font-size: 10px; opacity: 0.7; }

.app-subnav {
  display: none;
  padding: 0 0 6px;
}
.app-subnav.open { display: block; }

.subnav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px 6px 36px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 12.5px;
  cursor: pointer;
  transition: all 0.12s;
  border-left: 2px solid transparent;
}
.subnav-item:hover { background: var(--bg-sunken); color: var(--text); }
.subnav-item.active { color: var(--accent-text); border-left-color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.subnav-icon { font-size: 14px; }
.subnav-count {
  margin-left: auto;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-sunken);
  padding: 1px 7px;
  border-radius: 10px;
  font-variant-numeric: tabular-nums;
}

.sidebar-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border);
}
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.15s;
}
.theme-toggle:hover { background: var(--accent-soft); color: var(--accent-text); }
.theme-icon { font-size: 16px; }

/* ---- Main Area ---- */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

.topbar {
  height: var(--topbar-height);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  z-index: 50;
}
.topbar-left { display: flex; align-items: center; gap: 12px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.bc-app { color: var(--text-muted); font-weight: 500; }
.bc-sep { color: var(--text-muted); }
.bc-page { color: var(--text); font-weight: 600; }
.bc-detail { color: var(--accent-text); font-weight: 600; }
.bc-link { color: inherit; text-decoration: none; transition: all 0.15s; }
.bc-link:hover { color: var(--accent-text); text-decoration: underline; text-underline-offset: 3px; }

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 12px;
  width: 320px;
  transition: all 0.15s;
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.search-icon { font-size: 14px; color: var(--text-muted); }
.search-box input {
  flex: 1;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 12.5px;
  color: var(--text);
  padding: 8px 0;
  outline: none;
}
.search-box input::placeholder { color: var(--text-muted); }

/* ---- Content Area ---- */
.content {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
}

/* ---- Loading State ---- */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 300px;
  color: var(--text-muted);
}
.spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Shared Data Table ---- */
.data-table-wrap {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.data-table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}
.data-table-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}
.data-table-count {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.data-table-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
}
.filter-input {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  font-size: 12px;
  color: var(--text);
  background: var(--bg);
  width: 220px;
  outline: none;
  transition: all 0.15s;
}
.filter-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }

.filter-select {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  font-size: 12px;
  color: var(--text);
  background: var(--bg);
  outline: none;
  cursor: pointer;
}

table.dt {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  table-layout: fixed;
}
table.dt th {
  position: sticky;
  top: 0;
  background: var(--bg-sunken);
  border-bottom: 2px solid var(--border);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  z-index: 5;
}
table.dt th:hover { color: var(--accent-text); }
table.dt th .sort-arrow { font-size: 10px; margin-left: 3px; opacity: 0.5; }
table.dt th.sorted .sort-arrow { opacity: 1; color: var(--accent); }
table.dt td {
  padding: 7px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: middle;
}
table.dt tbody tr { cursor: pointer; transition: background 0.1s; }
table.dt tbody tr:hover { background: var(--accent-soft); }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
}
.pagination-info { font-variant-numeric: tabular-nums; }
.pagination-btns { display: flex; gap: 4px; }
.page-btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-raised);
  color: var(--text-secondary);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  transition: all 0.12s;
}
.page-btn:hover { background: var(--accent-soft); color: var(--accent-text); }
.page-btn.active { background: var(--accent); color: var(--text-inverse); border-color: var(--accent); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---- Badges & Pills ---- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.badge-green { background: var(--green-soft); color: var(--green); }
.badge-red { background: var(--red-soft); color: var(--red); }
.badge-yellow { background: var(--yellow-soft); color: var(--yellow); }
.badge-blue { background: var(--blue-soft); color: var(--blue); }
.badge-purple { background: var(--purple-soft); color: var(--purple); }
.badge-gray { background: var(--bg-sunken); color: var(--text-secondary); }

.pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
  background: var(--bg-sunken);
  color: var(--text-secondary);
}

/* ---- Record Detail ---- */
.record-detail {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.record-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--accent-soft), var(--bg-raised));
}
.record-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 4px;
}
.record-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
}
.record-body { padding: 20px 24px; }
.record-section {
  margin-bottom: 20px;
}
.record-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 8px 20px;
}
.field-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 0;
}
.field-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.field-value {
  font-size: 13px;
  color: var(--text);
  word-break: break-word;
}
.field-value.empty { color: var(--text-muted); font-style: italic; }
.field-value a { color: var(--accent-text); text-decoration: none; }
.field-value a:hover { text-decoration: underline; }

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-raised);
  color: var(--text-secondary);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.12s;
}
.back-btn:hover { background: var(--accent-soft); color: var(--accent-text); }

/* ---- Tabs (for related data) ---- */
.tabs-bar {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 16px;
}
.tab-btn {
  padding: 8px 16px;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.12s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent-text); border-bottom-color: var(--accent); font-weight: 600; }
.tab-count { font-size: 10px; margin-left: 4px; color: var(--text-muted); }

/* ---- Cards Grid ---- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: var(--shadow-sm);
}
.card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.card-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.card-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.card-meta-item {
  font-size: 11px;
  color: var(--text-muted);
}
.card-meta-item strong {
  color: var(--text-secondary);
}

/* ---- Pipeline / Kanban ---- */
.pipeline {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}
.pipeline-col {
  min-width: 260px;
  flex: 1;
  background: var(--bg-sunken);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 160px);
}
.pipeline-col-header {
  padding: 12px 14px;
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--border);
}
.pipeline-col-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.pipeline-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  cursor: pointer;
  transition: all 0.12s;
  font-size: 12px;
}
.pipeline-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.pipeline-card-title {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}
.pipeline-card-amount {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-text);
  margin-bottom: 4px;
}
.pipeline-card-meta {
  color: var(--text-muted);
  font-size: 11px;
}

/* ---- Stage Timeline ---- */
.timeline { margin: 12px 0; }
.timeline-item {
  display: flex;
  gap: 14px;
  padding: 10px 0;
  border-left: 2px solid var(--border);
  margin-left: 8px;
  padding-left: 18px;
  position: relative;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  border: 2px solid var(--bg-raised);
}
.timeline-info { flex: 1; }
.timeline-stage { font-weight: 600; font-size: 13px; color: var(--text); }
.timeline-meta { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* ---- Page Tree (Confluence) ---- */
.page-tree-container {
  display: flex;
  gap: 0;
  height: calc(100vh - var(--topbar-height) - 40px);
}
.page-tree-sidebar {
  width: 280px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  overflow-y: auto;
  background: var(--bg-raised);
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.page-tree-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
}

.tree-node {
  padding: 4px 0;
}
.tree-node-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  width: 100%;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 12.5px;
  color: var(--text-secondary);
  text-align: left;
  cursor: pointer;
  transition: all 0.1s;
  border-left: 2px solid transparent;
}
.tree-node-btn:hover { background: var(--bg-sunken); color: var(--text); }
.tree-node-btn.active { color: var(--accent-text); background: var(--accent-soft); border-left-color: var(--accent); font-weight: 600; }
.tree-toggle { font-size: 10px; width: 14px; color: var(--text-muted); transition: transform 0.15s; }
.tree-toggle.expanded { transform: rotate(90deg); }
.tree-children { padding-left: 16px; }
.tree-children.collapsed { display: none; }

/* ---- Data Quality Bars ---- */
.quality-bar {
  height: 6px;
  border-radius: 3px;
  background: var(--bg-sunken);
  overflow: hidden;
  width: 100px;
}
.quality-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s ease;
}
.quality-high .quality-bar-fill { background: var(--green); }
.quality-med .quality-bar-fill { background: var(--yellow); }
.quality-low .quality-bar-fill { background: var(--red); }

/* ---- Virtual Scroll ---- */
.virtual-scroll-container {
  overflow-y: auto;
  position: relative;
}
.virtual-scroll-spacer {
  position: relative;
}
.virtual-scroll-viewport {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .sidebar { width: 200px; }
  .field-grid { grid-template-columns: 1fr; }
}