/* ============================================
   TK78 Komunalni Dashboard
   Aesthetic: Industrial Utilitarian — Belgrade institutional precision
   ============================================ */

/* --- Tokens --- */
:root {
  --font-display: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Geometry */
  --sidebar-w: 240px;
  --radius: 6px;
  --radius-lg: 10px;

  /* Timing */
  --ease: cubic-bezier(.4, 0, .2, 1);
  --dur: 200ms;
}

/* Dark theme (default) */
[data-theme="dark"] {
  --bg-root: #0f1114;
  --bg-surface: #181b20;
  --bg-card: #1e2228;
  --bg-card-hover: #252a31;
  --bg-input: #252a31;

  --border: #2a2f38;
  --border-subtle: #1f2329;

  --text-primary: #e8e6e1;
  --text-secondary: #8b8d93;
  --text-muted: #55585f;

  --accent: #d4a843;
  --accent-dim: #b8922e;
  --accent-glow: rgba(212, 168, 67, .12);

  --success: #4caf7d;
  --warning: #d4a843;
  --danger: #c45c5c;
  --info: #5b8fc9;

  --chart-grid: rgba(255, 255, 255, .04);
  --chart-text: #6b6e75;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.5);

  --noise-opacity: .03;
}

/* Light theme */
[data-theme="light"] {
  --bg-root: #f0ede8;
  --bg-surface: #e8e4de;
  --bg-card: #ffffff;
  --bg-card-hover: #f7f5f2;
  --bg-input: #f0ede8;

  --border: #d4d0c8;
  --border-subtle: #e2ded6;

  --text-primary: #1a1a1a;
  --text-secondary: #6b6860;
  --text-muted: #9e998f;

  --accent: #a07828;
  --accent-dim: #8a6820;
  --accent-glow: rgba(160, 120, 40, .08);

  --success: #3a8a60;
  --warning: #a07828;
  --danger: #b04040;
  --info: #4070a8;

  --chart-grid: rgba(0, 0, 0, .06);
  --chart-text: #8a8580;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.1);

  --noise-opacity: .015;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-display);
  background: var(--bg-root);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

/* Subtle noise texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  opacity: var(--noise-opacity);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  pointer-events: none;
  z-index: 9999;
}

/* --- Sidebar --- */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--dur) var(--ease);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.sidebar-header {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
}

.logo-mark {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.logo-num {
  color: var(--accent);
}

.property-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.property-address {
  font-size: .75rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: .02em;
}

.property-code {
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--text-muted);
  letter-spacing: .04em;
}

/* Nav sections */
.nav-section {
  padding: 16px 12px 8px;
}

.nav-label {
  display: block;
  font-size: .65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
  padding: 0 8px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 450;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  text-align: left;
  position: relative;
}

.nav-item:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent);
  font-weight: 550;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 18px;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
}

.nav-icon {
  font-size: .9rem;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  opacity: .7;
}

.nav-item.active .nav-icon {
  opacity: 1;
}

/* Sidebar footer */
.sidebar-footer {
  margin-top: auto;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.theme-toggle,
.theme-toggle-mobile {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--dur) var(--ease);
}

.theme-toggle:hover,
.theme-toggle-mobile:hover {
  background: var(--bg-card-hover);
  color: var(--accent);
  border-color: var(--accent-dim);
}

[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="light"] .theme-icon-dark { display: none; }

.data-range {
  font-family: var(--font-mono);
  font-size: .65rem;
  color: var(--text-muted);
  letter-spacing: .02em;
}

/* --- Mobile header --- */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 52px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  align-items: center;
  justify-content: space-between;
  z-index: 110;
}

.menu-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px;
}

.mobile-logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
}

.mobile-logo .logo-num {
  color: var(--accent);
}

/* --- Main content --- */
.content {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 32px 36px 80px;
  min-height: 100vh;
  transition: margin var(--dur) var(--ease);
}

/* --- Tab panels --- */
.tab-panel {
  display: none;

}

.tab-panel.active {
  display: block;
}

/* --- Panel header --- */
.panel-header {
  margin-bottom: 28px;
}

.panel-header h1 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 650;
  letter-spacing: -.02em;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.panel-desc {
  font-size: .85rem;
  color: var(--text-secondary);
  font-weight: 400;
}

/* --- Summary cards --- */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  transition: all var(--dur) var(--ease);
}

.summary-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-dim);
  box-shadow: var(--shadow-sm);
}

.summary-card .card-label {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.summary-card .card-value {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -.01em;
}

.summary-card .card-sub {
  font-size: .72rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.card-trend {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
}

.card-trend.up { color: var(--danger); }
.card-trend.down { color: var(--success); }
.card-trend.neutral { color: var(--text-muted); }

/* --- Chart containers --- */
.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  position: relative;
  min-height: 300px;
}

.chart-container canvas {
  width: 100% !important;
  height: 380px !important;
}

.chart-container--half {
  display: inline-block;
  width: calc(50% - 10px);
  vertical-align: top;
}

.chart-container--half:first-of-type {
  margin-right: 20px;
}

/* --- Charts grid (for multi-chart views) --- */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.charts-grid .chart-container {
  min-height: 240px;
}

/* --- Controls bar --- */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 20px;
}

.control-select {
  font-family: var(--font-display);
  font-size: .82rem;
  padding: 7px 32px 7px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%238b8d93' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  transition: border-color var(--dur) var(--ease);
}

.control-select:hover,
.control-select:focus {
  border-color: var(--accent-dim);
  outline: none;
}

.control-btn {
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 500;
  padding: 7px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--dur) var(--ease);
}

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

.control-btn.active {
  background: var(--accent-glow);
  border-color: var(--accent-dim);
  color: var(--accent);
}

/* --- Data tables --- */
.data-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-bottom: 20px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .82rem;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-card);
}

.data-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td,
.data-table tr.sync-highlight td {
  background: var(--bg-card-hover);
}

.data-table tr.sync-highlight td {
  box-shadow: inset 2px 0 0 var(--accent);
}

.data-table .num {
  font-family: var(--font-mono);
  font-size: .8rem;
  text-align: right;
}

/* --- Anomaly list --- */
.anomaly-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.anomaly-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-left: 3px solid var(--danger);
}

.anomaly-item .anomaly-badge {
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 600;
  color: var(--danger);
  white-space: nowrap;
}

.anomaly-item .anomaly-text {
  font-size: .82rem;
  color: var(--text-secondary);
}

/* --- What-if legend --- */
.whatif-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.whatif-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-secondary);
}

.whatif-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.whatif-new {
  font-family: var(--font-mono);
}

.whatif-delta {
  font-family: var(--font-mono);
  font-size: .7rem;
  margin-left: 4px;
  opacity: .7;
}

.whatif-delta.down { color: var(--success); }
.whatif-delta.up { color: var(--danger); }

/* --- Heatmap (custom div-based) --- */
#heatmapContainer {
  display: grid;
  gap: 3px;
  padding: 8px;
}

.heatmap-cell {
  border-radius: 3px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: .6rem;
  color: var(--text-primary);
  cursor: default;
  transition: transform 100ms var(--ease);
}

.heatmap-cell:hover {
  transform: scale(1.1);
  z-index: 1;
  outline: 2px solid var(--accent);
}

/* --- Responsive --- */
@media (max-width: 860px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

  .mobile-header {
    display: flex;
  }

  .content {
    margin-left: 0;
    padding: 68px 16px 24px;
  }

  .chart-container--half {
    display: block;
    width: 100%;
    margin-right: 0;
  }

  .charts-grid {
    grid-template-columns: 1fr;
  }

  .summary-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .summary-cards {
    grid-template-columns: 1fr;
  }

  .content {
    padding: 60px 12px 20px;
  }

  .panel-header h1 {
    font-size: 1.25rem;
  }

  .chart-container {
    padding: 16px 12px;
    min-height: 240px;
  }
}

/* --- Backdrop for mobile menu --- */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .5);
  z-index: 99;
}

.sidebar-backdrop.visible {
  display: block;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- Pie chart layout --- */
.pie-layout {
  display: flex;
  gap: 24px;
  align-items: center;
}

.pie-chart-wrap {
  flex: 0 0 33%;
  max-width: 33%;
}

.pie-legend-wrap {
  flex: 1;
  min-width: 0;
}

/* --- Timeline event highlight --- */
.timeline-event-highlight {
  background: var(--accent-glow);
  border-radius: var(--radius);
  outline: 1px solid var(--accent-dim);
}

/* --- Crosshair sticky footer --- */
.crosshair-footer {
  position: fixed;
  bottom: 0;
  left: var(--sidebar-w);
  right: 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 10px 20px;
  z-index: 90;
  transform: translateY(100%);
  transition: transform 150ms var(--ease);
  overflow-x: auto;
}

.crosshair-footer.visible {
  transform: translateY(0);
}

/* Space at bottom so footer doesn't cover last table row */

.crosshair-footer-label {
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 6px;
}

.crosshair-footer-items {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}

.crosshair-footer-item {
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.crosshair-footer-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.crosshair-footer-name {
  font-family: var(--font-display);
  font-size: .7rem;
  color: var(--text-secondary);
}

.crosshair-footer-val {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  color: var(--text-primary);
}

.crosshair-footer-total {
  padding-left: 8px;
  border-left: 1px solid var(--border);
}

.crosshair-footer-total .crosshair-footer-name {
  font-weight: 600;
  color: var(--accent);
}

.crosshair-footer-total .crosshair-footer-val {
  font-weight: 600;
  color: var(--accent);
}

@media (max-width: 860px) {
  .crosshair-footer { left: 0; }
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}