/* =============================================================
   Canada Economic Dashboard — dashboard.css
   Design system: professional blues/teals (light), slate (dark)
   Font: Inter (Google Fonts)
   ============================================================= */

/* -------------------------------------------------------------
   CSS Custom Properties — Design Tokens
------------------------------------------------------------- */
:root {
  /* Brand palette */
  --color-primary:        #1a6fba;
  --color-primary-light:  #3b91e0;
  --color-primary-dark:   #0f4a82;
  --color-accent:         #0d9488;   /* teal */
  --color-accent-light:   #14b8a6;

  /* Semantic colours */
  --color-positive:       #16a34a;
  --color-positive-bg:    #dcfce7;
  --color-negative:       #dc2626;
  --color-negative-bg:    #fee2e2;
  --color-neutral:        #64748b;

  /* Surface & text */
  --surface-page:         #f1f5f9;
  --surface-card:         #ffffff;
  --surface-panel:        #ffffff;
  --surface-table-head:   #f8fafc;
  --surface-table-stripe: #f1f5f9;
  --border-color:         #e2e8f0;
  --text-primary:         #0f172a;
  --text-secondary:       #475569;
  --text-muted:           #94a3b8;
  --text-on-accent:       #ffffff;

  /* Navbar */
  --navbar-bg:            #0f172a;
  --navbar-text:          #f1f5f9;
  --navbar-subtitle:      #94a3b8;

  /* Shadows */
  --shadow-sm:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:   0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.05);
  --shadow-lg:   0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.05);

  /* Layout */
  --navbar-height:        64px;
  --border-radius-sm:     6px;
  --border-radius-md:     10px;
  --border-radius-lg:     14px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-med:  0.25s ease;
}

/* Dark mode overrides */
[data-bs-theme="dark"] {
  --surface-page:         #0f172a;
  --surface-card:         #1e293b;
  --surface-panel:        #1e293b;
  --surface-table-head:   #162032;
  --surface-table-stripe: #1a2740;
  --border-color:         #334155;
  --text-primary:         #f1f5f9;
  --text-secondary:       #94a3b8;
  --text-muted:           #64748b;

  --navbar-bg:            #0a1020;
  --navbar-text:          #f1f5f9;
  --navbar-subtitle:      #64748b;

  --color-positive-bg:    #14532d;
  --color-negative-bg:    #7f1d1d;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.3);
  --shadow-md:   0 4px 6px -1px rgba(0,0,0,.4);
  --shadow-lg:   0 10px 15px -3px rgba(0,0,0,.5);
}

/* -------------------------------------------------------------
   Global Reset & Base
------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  background-color: var(--surface-page);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-med), color var(--transition-med);
}

main {
  flex: 1 1 auto;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: var(--text-primary);
}

/* Links */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* -------------------------------------------------------------
   NAVBAR
------------------------------------------------------------- */
#main-navbar {
  background-color: var(--navbar-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  min-height: var(--navbar-height);
  z-index: 1030;
  box-shadow: var(--shadow-md);
  transition: background-color var(--transition-med);
}

.navbar-logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--border-radius-sm);
  color: #fff;
  font-size: 1rem;
  flex-shrink: 0;
}

.navbar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navbar-text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.navbar-subtitle {
  font-size: 0.78rem;
  color: var(--navbar-subtitle);
  font-weight: 400;
}

/* Theme toggle button */
.btn-theme-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--border-radius-sm);
  color: var(--navbar-text);
  font-size: 0.82rem;
  font-weight: 500;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn-theme-toggle:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(255,255,255,0.22);
  color: #fff;
}

.btn-theme-toggle:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

/* -------------------------------------------------------------
   KPI CARDS
------------------------------------------------------------- */
.kpi-section {
  padding-top: 1.5rem;
  padding-bottom: 0.5rem;
}

.kpi-card {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
              background-color var(--transition-med), border-color var(--transition-med);
  height: 100%;
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.kpi-card-inner {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.kpi-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--border-radius-md);
  font-size: 1.15rem;
  flex-shrink: 0;
  color: #fff;
}

.kpi-icon-gdp          { background: linear-gradient(135deg, #1a6fba, #3b91e0); }
.kpi-icon-cpi          { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.kpi-icon-unemployment { background: linear-gradient(135deg, #d97706, #fbbf24); }
.kpi-icon-boc          { background: linear-gradient(135deg, #0d9488, #2dd4bf); }

.kpi-content {
  flex: 1;
  min-width: 0;
}

.kpi-label {
  font-size: 0.73rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kpi-value {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.2rem;
  line-height: 1.2;
  min-height: 1.8rem;
}

.kpi-change {
  font-size: 0.78rem;
  font-weight: 500;
  margin: 0;
  min-height: 1.1rem;
}

/* KPI change colours set by JS via class */
.kpi-change.positive {
  color: var(--color-positive);
}
.kpi-change.negative {
  color: var(--color-negative);
}
.kpi-change.neutral {
  color: var(--text-muted);
}

/* KPI skeleton loading placeholders */
.kpi-skeleton {
  display: inline-block;
  background: linear-gradient(
    90deg,
    var(--border-color) 25%,
    var(--surface-table-stripe) 50%,
    var(--border-color) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite;
  border-radius: 4px;
  height: 1.6rem;
  width: 70px;
}
.kpi-skeleton-sm {
  height: 0.9rem;
  width: 90px;
}

@keyframes skeleton-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* -------------------------------------------------------------
   TAB NAVIGATION
------------------------------------------------------------- */
.dashboard-tabs-section {
  margin-top: 0.5rem;
}

.dashboard-nav-tabs {
  border-bottom: 2px solid var(--border-color);
  gap: 2px;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 0;
}

.dashboard-nav-tabs::-webkit-scrollbar {
  display: none;
}

.dashboard-nav-tabs .nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 10px 14px;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  white-space: nowrap;
  transition: color var(--transition-fast), border-color var(--transition-fast),
              background-color var(--transition-fast);
  margin-bottom: -2px;
  background: transparent;
}

.dashboard-nav-tabs .nav-link:hover {
  color: var(--color-primary);
  background-color: rgba(26, 111, 186, 0.06);
  border-bottom-color: var(--color-primary-light);
}

.dashboard-nav-tabs .nav-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  background: transparent;
  font-weight: 600;
}

.dashboard-nav-tabs .nav-link i {
  font-size: 0.9rem;
}

/* Tab content area */
.dashboard-tab-content {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
}

/* -------------------------------------------------------------
   CHART PANELS
------------------------------------------------------------- */
.chart-panel {
  background: var(--surface-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.4rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-med), border-color var(--transition-med);
  margin-bottom: 1rem;
}

/* Panel header */
.chart-panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.2rem;
  flex-wrap: wrap;
}

.chart-panel-title-group {
  flex: 1;
  min-width: 0;
}

.chart-panel-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.2rem;
  line-height: 1.3;
}

.chart-panel-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0;
  font-weight: 400;
}

.chart-panel-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* Source badge */
.chart-source-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  background: rgba(26, 111, 186, 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(26, 111, 186, 0.2);
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}

[data-bs-theme="dark"] .chart-source-badge {
  background: rgba(59, 145, 224, 0.15);
  border-color: rgba(59, 145, 224, 0.25);
  color: var(--color-primary-light);
}

/* Updated label */
.chart-updated-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

/* Chart canvas wrapper */
.chart-wrapper {
  position: relative;
  width: 100%;
  height: 360px;
  margin-bottom: 1.2rem;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background: var(--surface-page);
  border: 1px solid var(--border-color);
  transition: background-color var(--transition-med);
}

.chart-wrapper canvas {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
}

/* ---- Loading spinner ---- */
.chart-spinner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: var(--surface-page);
  z-index: 10;
  border-radius: var(--border-radius-md);
  transition: background-color var(--transition-med);
}

.spinner-ring {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

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

.spinner-text {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 0;
  font-weight: 500;
}

/* ---- Error state ---- */
.chart-error {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--surface-page);
  z-index: 10;
  padding: 2rem;
  border-radius: var(--border-radius-md);
  text-align: center;
}

.chart-error-icon {
  font-size: 2rem;
  color: var(--color-negative);
  margin-bottom: 0.25rem;
}

.chart-error-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  margin: 0;
}

.chart-error-msg {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin: 0;
}

.retry-btn {
  margin-top: 0.5rem;
  font-size: 0.8rem;
}

/* ---- Visible / hidden states controlled by JS ---- */
.chart-spinner.loaded,
.chart-error.loaded {
  display: none !important;
}

/* Panel-level loading/error states applied by main.js */
.chart-panel.loading {
  /* Panel is awaiting data — individual spinners handle visual feedback */
  pointer-events: none;
  opacity: 0.85;
}

.chart-panel.error .chart-panel-title {
  color: var(--color-negative);
}

/* -------------------------------------------------------------
   DATA TABLES
------------------------------------------------------------- */
.chart-table-wrapper {
  margin-top: 0.25rem;
}

.chart-table-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.5rem;
}

.chart-data-table {
  font-size: 0.8rem;
  color: var(--text-primary);
  margin-bottom: 0;
  border-color: var(--border-color);
}

.chart-data-table thead tr {
  background: var(--surface-table-head);
}

.chart-data-table thead th {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 7px 10px;
  border-color: var(--border-color);
  white-space: nowrap;
}

.chart-data-table tbody tr {
  transition: background-color var(--transition-fast);
  border-color: var(--border-color);
}

.chart-data-table tbody tr:nth-child(even) {
  background: var(--surface-table-stripe);
}

.chart-data-table tbody tr:hover {
  background: rgba(26, 111, 186, 0.06);
}

.chart-data-table tbody td {
  padding: 6px 10px;
  border-color: var(--border-color);
  vertical-align: middle;
}

/* Change value colours in tables */
.change-positive {
  color: var(--color-positive);
  font-weight: 500;
}
.change-negative {
  color: var(--color-negative);
  font-weight: 500;
}

/* -------------------------------------------------------------
   PAGE FOOTER
------------------------------------------------------------- */
.page-footer {
  background: var(--navbar-bg);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 1.1rem 0;
  margin-top: 2rem;
  transition: background-color var(--transition-med);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-sources {
  font-size: 0.76rem;
  color: var(--navbar-subtitle);
  flex: 1;
  min-width: 0;
}

.footer-right {
  font-size: 0.76rem;
  color: var(--navbar-subtitle);
  white-space: nowrap;
}

.footer-link {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent-light);
  text-decoration: underline;
}

.footer-build-info {
  display: inline-flex;
  align-items: center;
}

/* -------------------------------------------------------------
   BOOTSTRAP OVERRIDES — Dark Mode Chart Table
------------------------------------------------------------- */
[data-bs-theme="dark"] .chart-data-table {
  --bs-table-bg: var(--surface-panel);
  --bs-table-striped-bg: var(--surface-table-stripe);
  --bs-table-hover-bg: rgba(59, 145, 224, 0.1);
  --bs-table-border-color: var(--border-color);
  --bs-table-color: var(--text-primary);
  color: var(--text-primary);
}

[data-bs-theme="dark"] .chart-data-table thead th {
  background: var(--surface-table-head);
}

/* Bootstrap tab overrides */
[data-bs-theme="dark"] .dashboard-nav-tabs .nav-link {
  color: var(--text-secondary);
}

[data-bs-theme="dark"] .dashboard-nav-tabs .nav-link:hover {
  color: var(--color-primary-light);
  background-color: rgba(59, 145, 224, 0.08);
}

[data-bs-theme="dark"] .dashboard-nav-tabs .nav-link.active {
  color: var(--color-primary-light);
  border-bottom-color: var(--color-primary-light);
}

/* Bootstrap table in dark — remove default dark table bg */
[data-bs-theme="dark"] .table {
  --bs-table-bg: transparent;
}

/* -------------------------------------------------------------
   RESPONSIVE BREAKPOINTS
------------------------------------------------------------- */

/* Tablet (≥768px) */
@media (min-width: 768px) {
  .chart-wrapper {
    height: 400px;
  }

  .kpi-value {
    font-size: 1.6rem;
  }

  .chart-panel-title {
    font-size: 1.1rem;
  }
}

/* Desktop (≥992px) */
@media (min-width: 992px) {
  .chart-wrapper {
    height: 420px;
  }

  .dashboard-nav-tabs .nav-link {
    padding: 11px 18px;
    font-size: 0.86rem;
  }
}

/* Large desktop (≥1200px) */
@media (min-width: 1200px) {
  .chart-wrapper {
    height: 440px;
  }
}

/* Mobile (< 576px) */
@media (max-width: 575.98px) {
  .chart-wrapper {
    height: 280px;
  }

  .kpi-value {
    font-size: 1.2rem;
  }

  .kpi-icon {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .chart-panel {
    padding: 1rem;
  }

  .chart-panel-header {
    flex-direction: column;
    gap: 0.6rem;
  }

  .dashboard-nav-tabs .nav-link {
    padding: 8px 10px;
    font-size: 0.76rem;
  }

  .dashboard-nav-tabs .nav-link span {
    display: none;
  }

  .dashboard-nav-tabs .nav-link i {
    margin-right: 0 !important;
    font-size: 1rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

/* -------------------------------------------------------------
   PRINT STYLES
------------------------------------------------------------- */
@media print {
  #main-navbar,
  .page-footer,
  .btn-theme-toggle,
  .retry-btn {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .chart-panel {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* -------------------------------------------------------------
   ACCESSIBILITY
------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* -------------------------------------------------------------
   UTILITY CLASSES
------------------------------------------------------------- */
.text-positive { color: var(--color-positive) !important; }
.text-negative { color: var(--color-negative) !important; }
.text-neutral   { color: var(--color-neutral) !important; }

.bg-positive-soft { background-color: var(--color-positive-bg) !important; }
.bg-negative-soft { background-color: var(--color-negative-bg) !important; }

/* Badge pill used by main.js for KPI labels */
.kpi-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 7px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.kpi-badge.positive {
  background: var(--color-positive-bg);
  color: var(--color-positive);
}
.kpi-badge.negative {
  background: var(--color-negative-bg);
  color: var(--color-negative);
}
.kpi-badge.neutral {
  background: var(--surface-table-stripe);
  color: var(--text-muted);
}