/* ==========================================================================
   Spotify Recent Tracks Analytics Dashboard Theme & Stylesheet
   Compliant with Spotify Brand Guidelines & High-Aesthetic Dark UI
   ========================================================================== */

:root {
  --bg-main: #000000;
  --bg-surface: #121212;
  --bg-card: #141414;
  --bg-card-hover: #1c1c1c;
  --bg-input: #0a0a0a;
  
  --border-subtle: #242424;
  --border-hover: #3e3e3e;
  --border-focus: #1db954;
  
  --spotify-green: #1db954;
  --spotify-green-hover: #1ed760;
  --spotify-green-glow: rgba(29, 185, 84, 0.35);
  --spotify-green-dim: rgba(29, 185, 84, 0.15);
  
  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --text-muted: #727272;
  --text-disabled: #4a4a4a;
  
  --font-display: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;
  
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 16px var(--spotify-green-glow);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.45;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* App Container */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 12px 18px 18px;
  max-width: 1920px;
  margin: 0 auto;
}

/* Top Header */
.top-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 14px;
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 10px;
}

.spotify-logo-icon {
  color: var(--spotify-green);
  flex-shrink: 0;
}

.brand-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.dataset-tag {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-family: monospace;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-left: 6px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--spotify-green);
  box-shadow: 0 0 8px var(--spotify-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; filter: drop-shadow(0 0 4px var(--spotify-green)); }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.current-timestamp {
  font-family: monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.refresh-action-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.refresh-action-btn:hover {
  border-color: var(--spotify-green);
  color: var(--spotify-green);
  background: var(--spotify-green-dim);
}

/* Dashboard Grid Layout */
.dashboard-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 14px;
  align-items: start;
}

@media (min-width: 1440px) {
  .dashboard-grid {
    grid-template-columns: 310px 1fr;
  }
}

/* Base Card Styles */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-card);
  position: relative;
}

/* SIDEBAR PANEL */
.sidebar-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-title-lg {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

/* Search Artist Input */
.search-card {
  padding: 14px 14px 12px;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 12px;
  color: var(--text-muted);
  pointer-events: none;
}

#artist-search-input {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.92rem;
  padding: 9px 32px 9px 36px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

#artist-search-input:focus {
  border-color: var(--spotify-green);
  box-shadow: 0 0 0 2px var(--spotify-green-dim);
}

.clear-btn {
  position: absolute;
  right: 8px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 0 4px;
}

.clear-btn:hover {
  color: var(--text-primary);
}

/* Suggestions Dropdown */
.suggestions-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 14px;
  right: 14px;
  background-color: #1a1a1a;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  max-height: 240px;
  overflow-y: auto;
  z-index: 100;
  box-shadow: 0 8px 24px rgba(0,0,0,0.8);
}

.suggestion-item {
  padding: 8px 12px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover, .suggestion-item.selected {
  background-color: var(--spotify-green-dim);
  color: var(--spotify-green);
}

.suggestion-count {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.active-filter-badge {
  margin-top: 8px;
  background: var(--spotify-green-dim);
  border: 1px solid var(--spotify-green);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--spotify-green-hover);
}

.active-filter-badge button {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
}

/* Date Range Card */
.date-range-card {
  padding: 12px;
}

.date-inputs-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.date-field {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--spotify-green);
  font-family: monospace;
  font-size: 0.86rem;
  font-weight: 600;
  text-align: center;
  padding: 7px 4px;
  outline: none;
  transition: border-color 0.2s;
}

.date-field:focus {
  border-color: var(--spotify-green);
}

/* Dual Handle Slider */
.slider-container {
  padding: 10px 8px 14px;
}

.slider-track {
  position: relative;
  height: 4px;
  background-color: #282828;
  border-radius: 2px;
}

.slider-range-fill {
  position: absolute;
  height: 100%;
  background-color: #ffffff;
  border-radius: 2px;
}

.slider-thumb {
  position: absolute;
  top: 50%;
  width: 16px;
  height: 16px;
  background-color: #ffffff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0,0,0,0.8);
  outline: none;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  z-index: 10;
}

.slider-thumb:hover, .slider-thumb:focus {
  transform: translate(-50%, -50%) scale(1.2);
  box-shadow: 0 0 10px var(--spotify-green);
  background-color: #ffffff;
}

/* Presets */
.date-presets {
  display: flex;
  gap: 4px;
  justify-content: space-between;
  margin-top: 6px;
}

.preset-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.74rem;
  padding: 3px 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex: 1;
  text-align: center;
  transition: all 0.15s ease;
}

.preset-btn:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.preset-btn.active {
  background-color: var(--spotify-green-dim);
  border-color: var(--spotify-green);
  color: var(--spotify-green);
  font-weight: 600;
}

/* KPI Stack Card */
.kpi-stack-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px 14px;
  text-align: center;
}

.kpi-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.kpi-label {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
  letter-spacing: -0.01em;
}

.kpi-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.glow-green {
  color: var(--spotify-green);
  text-shadow: 0 0 12px var(--spotify-green-glow);
}

.tracked-timestamps-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
  margin-top: 2px;
}

.ts-col {
  text-align: left;
}

.ts-col.right-align {
  text-align: right;
}

.ts-sublabel {
  font-size: 0.72rem;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.ts-subvalue {
  font-size: 0.72rem;
  color: var(--spotify-green);
  font-family: monospace;
  font-weight: 600;
  line-height: 1.2;
}

/* MAIN CONTENT PANEL */
.main-content-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

/* Chart Card */
.chart-card {
  padding: 16px 18px 12px;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.chart-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.chart-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.chart-toggle-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.15s ease;
}

.chart-toggle-btn:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.chart-toggle-btn.active {
  background: var(--spotify-green-dim);
  border-color: var(--spotify-green);
  color: var(--spotify-green);
}

.toggle-icon-dash {
  font-weight: 800;
  letter-spacing: -1px;
}

.toggle-icon-dot {
  font-size: 9px;
}

.canvas-wrapper {
  position: relative;
  width: 100%;
  height: 330px;
}

#monthly-chart-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Chart Custom Tooltip */
.chart-custom-tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(18, 18, 18, 0.95);
  border: 1px solid var(--spotify-green);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.8), 0 0 10px var(--spotify-green-glow);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  z-index: 50;
  transform: translate(-50%, -120%);
  backdrop-filter: blur(8px);
  min-width: 120px;
}

.tooltip-header {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 3px;
}

.tooltip-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.75rem;
  margin-top: 2px;
}

.tooltip-val {
  color: var(--spotify-green);
  font-weight: 700;
  font-family: monospace;
}

/* TABLES SPLIT ROW */
.tables-split-row {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 14px;
}

@media (max-width: 1100px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .tables-split-row {
    grid-template-columns: 1fr;
  }
}

.table-card {
  display: flex;
  flex-direction: column;
  padding: 14px 16px;
  height: 390px;
}

.table-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.table-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.table-search-box input {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.78rem;
  padding: 4px 8px;
  outline: none;
  width: 140px;
  transition: border-color 0.2s;
}

.table-search-box input:focus {
  border-color: var(--spotify-green);
}

.table-scroll-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: #0d0d0d;
}

/* Custom Scrollbar */
.table-scroll-container::-webkit-scrollbar,
.suggestions-dropdown::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.table-scroll-container::-webkit-scrollbar-track,
.suggestions-dropdown::-webkit-scrollbar-track {
  background: #121212;
}

.table-scroll-container::-webkit-scrollbar-thumb,
.suggestions-dropdown::-webkit-scrollbar-thumb {
  background: #2e2e2e;
  border-radius: 3px;
}

.table-scroll-container::-webkit-scrollbar-thumb:hover,
.suggestions-dropdown::-webkit-scrollbar-thumb:hover {
  background: #444444;
}

/* Data Table */
.data-table {
  width: 100%;
  min-width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table thead {
  position: sticky;
  top: 0;
  background-color: #181818;
  z-index: 10;
}

.data-table th {
  padding: 8px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--spotify-green);
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
  user-select: none;
}

.data-table th.sortable {
  cursor: pointer;
}

.data-table th.sortable:hover {
  color: var(--spotify-green-hover);
  background: rgba(255,255,255,0.02);
}

.sort-arrow {
  font-size: 0.7rem;
  opacity: 0.7;
  margin-left: 2px;
}

.active-sort .sort-arrow {
  opacity: 1;
  color: #ffffff;
}

.data-table td {
  padding: 7px 10px;
  font-size: 0.82rem;
  color: var(--text-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  max-width: 160px;
}

.data-table td.col-track {
  max-width: 140px;
}

.data-table td.col-artist,
.data-table td.col-art-name {
  max-width: 120px;
}

.data-table td.col-count,
.data-table td.col-art-count {
  text-align: right;
  font-family: monospace;
  font-weight: 600;
  color: #ffffff;
  padding-right: 12px;
  min-width: 55px;
}

.data-table td.col-last-played {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-family: monospace;
}

/* Mobile Specific Optimizations */
@media (max-width: 600px) {
  .app-container {
    padding: 8px 10px 14px;
  }

  .top-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .current-timestamp {
    font-size: 0.75rem;
  }

  .chart-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .chart-controls {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .chart-title {
    font-size: 1.2rem;
  }

  .canvas-wrapper {
    height: 260px;
  }

  .data-table {
    min-width: 320px;
  }

  #top-songs-table {
    min-width: 340px;
  }

  .data-table td.col-last-played {
    font-size: 0.7rem;
    max-width: 95px;
  }

  .kpi-value {
    font-size: 1.9rem;
  }
}


.data-table tbody tr {
  transition: background-color 0.1s ease;
  cursor: pointer;
}

.data-table tbody tr:hover {
  background-color: #1e1e1e;
}

.data-table tbody tr.active-row {
  background-color: var(--spotify-green-dim);
}

.data-table td.col-count,
.data-table td.col-art-count {
  text-align: right;
  font-family: monospace;
  font-weight: 600;
  color: #ffffff;
  padding-right: 14px;
}

.data-table td.col-last-played {
  color: var(--text-secondary);
  font-size: 0.76rem;
  font-family: monospace;
}

.empty-state {
  text-align: center;
  padding: 30px 10px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Bottom Footer */
.bottom-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px 4px;
  margin-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}