/* PulseVoC — Design System (Light Theme) */
:root {
  --bg-primary: #f5f6f8;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f1f5;
  --bg-input: #f5f6f8;
  --border: #e2e4ea;
  --border-hover: #c8ccd6;

  --text-primary: #1a1d2b;
  --text-secondary: #4b5068;
  --text-muted: #8b90a5;

  --accent: #1b2066;
  --accent-hover: #2b3a8f;
  --accent-muted: rgba(27, 32, 102, 0.08);

  --green: #16a34a;
  --green-muted: rgba(22, 163, 74, 0.1);
  --yellow: #ca8a04;
  --yellow-muted: rgba(202, 138, 4, 0.1);
  --orange: #ea580c;
  --orange-muted: rgba(234, 88, 12, 0.1);
  --red: #dc2626;
  --red-muted: rgba(220, 38, 38, 0.1);
  --blue: #2563eb;
  --blue-muted: rgba(37, 99, 235, 0.1);
  --purple: #9333ea;
  --purple-muted: rgba(147, 51, 234, 0.1);

  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.1);
  --transition: 0.2s ease;

  --sidebar-width: 240px;
  --header-height: 56px;
}

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

html, body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ============ LAYOUT ============ */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: #1b2066;
  border-right: none;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition);
}

.sidebar-brand {
  padding: 16px 20px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-brand img {
  height: 28px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  margin-bottom: 6px;
}

.sidebar-brand h1 {
  font-size: 15px;
  font-weight: 700;
  color: rgba(255,255,255,0.95);
  letter-spacing: -0.3px;
}

.sidebar-brand span {
  font-size: 10px;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.6);
  font-size: 13.5px;
  font-weight: 500;
  transition: all var(--transition);
  margin-bottom: 2px;
}

.sidebar-nav a:hover {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.9);
}

.sidebar-nav a.active {
  background: rgba(255,255,255,0.15);
  color: #ffffff;
}

.sidebar-nav a svg {
  width: 18px;
  height: 18px;
  stroke-width: 1.8;
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.page-header {
  padding: 20px 28px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 50;
}

.page-header h2 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.page-header p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.page-body {
  padding: 24px 28px;
}

/* ============ CARDS ============ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  padding: 20px;
}

/* ============ KPI STATS ============ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition);
}

.stat-card:hover {
  border-color: var(--border-hover);
}

.stat-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1;
}

.stat-change {
  font-size: 12px;
  font-weight: 500;
  margin-top: 6px;
}

.stat-change.positive { color: var(--green); }
.stat-change.negative { color: var(--red); }
.stat-change.neutral { color: var(--text-muted); }

/* ============ MAP ============ */
.map-container {
  width: 100%;
  height: 480px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 24px;
}

.map-container .leaflet-popup-content-wrapper {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

.map-container .leaflet-popup-tip {
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.map-popup { padding: 4px; min-width: 200px; }
.map-popup h4 { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.map-popup .popup-area { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }
.map-popup .popup-stats { display: flex; gap: 12px; font-size: 12px; }
.map-popup .popup-stat { display: flex; flex-direction: column; }
.map-popup .popup-stat-label { color: var(--text-muted); font-size: 10px; }
.map-popup .popup-link { display: inline-block; margin-top: 10px; font-size: 12px; font-weight: 500; }

/* ============ BADGES ============ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-positive, .badge-very_positive {
  background: var(--green-muted);
  color: var(--green);
}

.badge-negative, .badge-very_negative {
  background: var(--red-muted);
  color: var(--red);
}

.badge-neutral {
  background: rgba(156, 163, 175, 0.15);
  color: #9ca3af;
}

.badge-critical {
  background: var(--red-muted);
  color: var(--red);
}

.badge-high {
  background: var(--orange-muted);
  color: var(--orange);
}

.badge-medium {
  background: var(--yellow-muted);
  color: var(--yellow);
}

.badge-low {
  background: var(--blue-muted);
  color: var(--blue);
}

/* ============ TABLES & LISTS ============ */
.outlet-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.outlet-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  cursor: pointer;
}

.outlet-item:hover {
  background: var(--bg-card-hover);
}

.outlet-item .outlet-rank {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  background: var(--border);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.outlet-item .outlet-info {
  flex: 1;
  margin-left: 12px;
}

.outlet-item .outlet-name {
  font-size: 13px;
  font-weight: 500;
}

.outlet-item .outlet-area {
  font-size: 11px;
  color: var(--text-muted);
}

.outlet-item .outlet-score {
  font-size: 16px;
  font-weight: 700;
  width: 50px;
  text-align: right;
}

/* ============ ALERT CARDS ============ */
.alert-card {
  display: flex;
  gap: 14px;
  padding: 16px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--border);
  margin-bottom: 8px;
  transition: background var(--transition);
}

.alert-card:hover { background: var(--bg-card-hover); }
.alert-card.severity-critical { border-left-color: var(--red); }
.alert-card.severity-high { border-left-color: var(--orange); }
.alert-card.severity-medium { border-left-color: var(--yellow); }
.alert-card.severity-low { border-left-color: var(--blue); }

.alert-content { flex: 1; }
.alert-title { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.alert-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.5; }
.alert-meta { font-size: 11px; color: var(--text-muted); margin-top: 6px; display: flex; gap: 12px; align-items: center; }

.alert-actions {
  display: flex;
  gap: 6px;
  align-items: flex-start;
}

/* ============ REVIEW CARDS ============ */
.review-card {
  padding: 16px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.review-author {
  font-size: 13px;
  font-weight: 500;
}

.review-date {
  font-size: 11px;
  color: var(--text-muted);
}

.review-stars {
  color: var(--yellow);
  font-size: 13px;
  margin-bottom: 6px;
}

.review-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.review-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.review-tag {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 12px;
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition);
}

.btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 11px;
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--bg-card);
}

/* ============ TABS ============ */
.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.tab {
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}

.tab:hover { color: var(--text-primary); }
.tab.active {
  color: var(--accent-hover);
  border-bottom-color: var(--accent);
}

/* ============ GRID LAYOUTS ============ */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

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

.filter-select {
  padding: 7px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  cursor: pointer;
}

.filter-select:focus {
  outline: none;
  border-color: var(--accent);
}

/* ============ SENTIMENT GAUGE ============ */
.gauge-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
}

.gauge-value {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -2px;
}

.gauge-label {
  font-size: 13px;
  font-weight: 500;
  margin-top: 4px;
  text-transform: capitalize;
}

/* ============ LOADING ============ */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

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

.loading-center {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .page-body {
    padding: 16px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .grid-3 { grid-template-columns: 1fr; }
  .map-container { height: 350px; }
}

/* ============ CHART CONTAINER ============ */
.chart-container {
  position: relative;
  width: 100%;
  height: 300px;
}

/* ============ EMPTY STATE ============ */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
}

.empty-state svg {
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
  opacity: 0.4;
}

.empty-state p {
  font-size: 14px;
}

/* ============ SOCIAL CARDS ============ */
.social-card {
  padding: 16px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.social-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.social-platform {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.social-platform.twitter { background: var(--blue-muted); color: var(--blue); }
.social-platform.reddit { background: var(--orange-muted); color: var(--orange); }
.social-platform.instagram { background: var(--purple-muted); color: var(--purple); }

.social-handle {
  font-size: 12px;
  color: var(--text-muted);
}

.social-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
}

.social-engagement {
  display: flex;
  gap: 16px;
  font-size: 11px;
  color: var(--text-muted);
}

.social-engagement span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.viral-badge {
  background: var(--red-muted);
  color: var(--red);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
}