/* ═══════════════════════════════════════════════════════════
   E-WASTE INTELLIGENCE SYSTEM — Design System
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

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

:root {
  /* Colors */
  --bg-base:      #060b14;
  --bg-surface:   #0d1626;
  --bg-elevated:  #111d30;
  --bg-card:      #13203a;
  --bg-hover:     #182845;

  --border:       rgba(99,148,255,0.12);
  --border-glow:  rgba(99,148,255,0.35);

  --text-primary:   #e8f0ff;
  --text-secondary: #7b9cc9;
  --text-muted:     #4a6280;

  --accent:       #3d8ef8;
  --accent-glow:  rgba(61,142,248,0.25);
  --accent-2:     #8b5cf6;
  --accent-3:     #10b981;
  --danger:       #ef4444;
  --warning:      #f59e0b;

  /* Sidebar */
  --sidebar-w:    260px;

  /* Spacing */
  --radius:       14px;
  --radius-sm:    8px;
  --radius-lg:    20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ══════════════════════════ SIDEBAR ══════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
  overflow: hidden;
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 200px;
  background: linear-gradient(180deg, rgba(61,142,248,0.06) 0%, transparent 100%);
  pointer-events: none;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 28px 24px 24px;
  border-bottom: 1px solid var(--border);
}

.logo-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #3d8ef8, #8b5cf6);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 4px 16px rgba(61,142,248,0.4);
  flex-shrink: 0;
}

.logo-text { display: flex; flex-direction: column; }
.logo-main { font-family: 'Space Grotesk', sans-serif; font-size: 16px; font-weight: 700; color: var(--text-primary); letter-spacing: -0.3px; }
.logo-sub { font-size: 10px; font-weight: 500; color: var(--text-muted); letter-spacing: 1.5px; text-transform: uppercase; }

.sidebar-nav {
  padding: 20px 16px;
  flex: 1;
  overflow-y: auto;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  padding: 0 12px;
  margin-bottom: 8px;
  margin-top: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  margin-bottom: 2px;
  position: relative;
}

.nav-item i { width: 18px; text-align: center; font-size: 14px; transition: all 0.2s; }

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

.nav-item.active {
  background: linear-gradient(135deg, rgba(61,142,248,0.18), rgba(139,92,246,0.12));
  color: var(--accent);
  border: 1px solid rgba(61,142,248,0.25);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 60%;
  background: linear-gradient(180deg, #3d8ef8, #8b5cf6);
  border-radius: 2px;
}

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

.api-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--warning);
  animation: pulse-dot 2s infinite;
}

.status-dot.online { background: var(--accent-3); }
.status-dot.offline { background: var(--danger); animation: none; }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.status-text { font-size: 12px; color: var(--text-secondary); }

/* ══════════════════════════ MAIN ══════════════════════════ */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Topbar ── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
}

.topbar-left { display: flex; align-items: center; gap: 16px; }

.sidebar-toggle {
  background: none; border: none;
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  display: none;
  transition: color 0.2s;
}

.page-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-subtitle { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

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

.year-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 12px;
}

.year-selector label { font-size: 12px; color: var(--text-muted); font-weight: 500; }

.year-selector select, select, .form-group select {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  font-family: 'Inter', sans-serif;
}

.current-time {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

/* ══════════════════════════ TAB PANELS ══════════════════════════ */
.tab-panel {
  display: none;
  padding: 28px 32px;
  flex: 1;
  animation: fadeIn 0.3s ease;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.section-intro { margin-bottom: 24px; }
.section-intro h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 26px; font-weight: 700;
  color: var(--text-primary);
}
.section-intro p { font-size: 14px; color: var(--text-secondary); margin-top: 6px; }

/* ══════════════════════════ CARDS ══════════════════════════ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
}

.chart-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(61,142,248,0.4), transparent);
  border-radius: var(--radius) var(--radius) 0 0;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.chart-header h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px; font-weight: 600;
  color: var(--text-primary);
}

.chart-header p {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
}

/* ══════════════════════════ KPI GRID ══════════════════════════ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.2s;
}

.kpi-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(61,142,248,0.3), transparent);
}

.kpi-card:hover { border-color: var(--border-glow); transform: translateY(-2px); }

.kpi-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.kpi-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px; font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.kpi-label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; font-weight: 500; }

.kpi-delta {
  font-size: 11px;
  font-weight: 600;
  margin-top: 6px;
  padding: 2px 8px;
  border-radius: 20px;
  display: inline-block;
}

.kpi-delta.positive { background: rgba(16,185,129,0.12); color: #10b981; }
.kpi-delta.negative { background: rgba(239,68,68,0.12); color: #ef4444; }
.kpi-delta.neutral  { background: rgba(99,148,255,0.12); color: var(--accent); }

/* ══════════════════════════ CHARTS ROW ══════════════════════════ */
.charts-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.chart-card.wide { grid-column: span 1; }

/* ══════════════════════════ BOTTOM ROW ══════════════════════════ */
.bottom-row {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 16px;
}

.map-preview-card, .top3-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
}

/* ── Top 3 ── */
.top3-list { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }

.top3-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  transition: border-color 0.2s;
  cursor: pointer;
}

.top3-item:hover { border-color: var(--border-glow); }

.top3-rank {
  width: 28px; height: 28px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 12px;
  flex-shrink: 0;
}

.rank-1 { background: linear-gradient(135deg,#f59e0b,#fbbf24); color: #000; }
.rank-2 { background: linear-gradient(135deg,#9ca3af,#d1d5db); color: #000; }
.rank-3 { background: linear-gradient(135deg,#b45309,#d97706); color: #000; }

.top3-name { font-weight: 600; font-size: 14px; flex: 1; }
.top3-waste { font-size: 13px; font-weight: 700; color: var(--warning); }

/* ══════════════════════════ FORECAST ══════════════════════════ */
.forecast-controls { margin-bottom: 4px; }

.control-grid {
  display: flex;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 180px;
}

.control-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.control-val {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--bg-elevated);
  border-radius: 4px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(61,142,248,0.6);
  transition: transform 0.15s;
}

input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  text-align: center;
}

.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 26px; font-weight: 700;
  color: var(--text-primary);
}

.stat-label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* ══════════════════════════ MAP ══════════════════════════ */
.map-controls { margin-bottom: 16px; }

.map-layout {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.map-sidebar {
  width: 260px;
  flex-shrink: 0;
}

.map-sidebar h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px; font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.city-detail-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  min-height: 160px;
  margin-bottom: 12px;
}

.detail-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 128px;
  color: var(--text-muted);
  text-align: center;
  gap: 8px;
}

.detail-placeholder i { font-size: 24px; opacity: 0.5; }
.detail-placeholder p { font-size: 12px; }

.city-quick-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 320px;
  overflow-y: auto;
}

.city-quick-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.2s;
}

.city-quick-item:hover { border-color: var(--border-glow); }
.city-quick-name { font-weight: 500; }
.city-quick-waste { font-weight: 700; color: var(--warning); font-size: 12px; }

/* Risk badges */
.risk-badge {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.risk-Critical { background: rgba(239,68,68,0.15); color: #ef4444; }
.risk-High     { background: rgba(245,158,11,0.15); color: #f59e0b; }
.risk-Medium   { background: rgba(61,142,248,0.15); color: #3d8ef8; }
.risk-Low      { background: rgba(16,185,129,0.15); color: #10b981; }

.heat-gradient-bar {
  width: 80px; height: 12px;
  border-radius: 6px;
  background: linear-gradient(90deg, #10b981, #f59e0b, #ef4444);
}

.map-legend-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
}

.heat-low, .heat-high { font-weight: 600; font-size: 11px; }

/* ══════════════════════════ PREDICT ══════════════════════════ */
.predict-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr 0.8fr;
  gap: 16px;
  align-items: start;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.form-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-with-icon {
  display: flex;
  align-items: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  gap: 10px;
  transition: border-color 0.2s;
}

.input-with-icon:focus-within { border-color: var(--accent); }
.input-with-icon i { color: var(--text-muted); font-size: 14px; }

.input-with-icon input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  width: 100%;
}

.range-hint {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-muted);
}

/* Result panel */
.predict-result { position: relative; overflow: hidden; }

.result-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  text-align: center;
  gap: 12px;
}

.placeholder-icon {
  width: 72px; height: 72px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(61,142,248,0.15), rgba(139,92,246,0.15));
  border: 1px solid rgba(61,142,248,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  color: var(--accent);
}

.result-placeholder h4 { font-family: 'Space Grotesk', sans-serif; font-size: 18px; font-weight: 700; }
.result-placeholder p { font-size: 13px; color: var(--text-muted); max-width: 240px; }

.result-badge {
  display: inline-block;
  padding: 4px 14px;
  background: linear-gradient(135deg, #3d8ef8, #8b5cf6);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: #fff;
  margin-bottom: 20px;
}

.result-main { text-align: center; margin-bottom: 24px; }

.result-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 60px;
  font-weight: 800;
  background: linear-gradient(135deg, #3d8ef8, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.result-unit { font-size: 13px; color: var(--text-secondary); margin-top: 6px; font-weight: 500; }

.result-confidence {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding: 14px;
  background: var(--bg-elevated);
  border-radius: 10px;
}

.conf-item { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.conf-label { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.conf-val { font-size: 14px; font-weight: 700; color: var(--accent); }

.conf-bar-container { flex: 1; height: 6px; background: var(--bg-base); border-radius: 4px; overflow: hidden; }
.conf-bar { height: 100%; background: linear-gradient(90deg, #10b981, #3d8ef8, #8b5cf6); border-radius: 4px; animation: slideIn 0.6s ease; }

@keyframes slideIn { from { width: 0; } }

.result-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.meta-item i { color: var(--accent); width: 16px; text-align: center; }

.result-insight {
  padding: 12px 14px;
  background: rgba(61,142,248,0.08);
  border: 1px solid rgba(61,142,248,0.2);
  border-radius: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Model info */
.model-specs { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }

.spec-item { display: flex; justify-content: space-between; align-items: center; }
.spec-label { font-size: 12px; color: var(--text-muted); }
.spec-val { font-size: 13px; font-weight: 600; color: var(--text-primary); text-align: right; max-width: 55%; }

/* ══════════════════════════ SCENARIO ══════════════════════════ */
.scenario-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 16px;
  align-items: start;
}

.scenario-controls h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px; font-weight: 600;
  margin-bottom: 20px;
}

.scenario-chart-area { min-height: 400px; }

.scenario-legend { display: flex; gap: 14px; flex-wrap: wrap; }

.scenario-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.scenario-sum-card {
  padding: 14px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--border);
}

.scenario-sum-card.optimistic { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.25); }
.scenario-sum-card.baseline   { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.25); }
.scenario-sum-card.pessimistic { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.25); }

.sum-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
.sum-val   { font-family: 'Space Grotesk', sans-serif; font-size: 22px; font-weight: 700; margin: 4px 0; }
.sum-desc  { font-size: 11px; color: var(--text-muted); }

.optimistic .sum-label, .optimistic .sum-val { color: #10b981; }
.baseline .sum-label, .baseline .sum-val     { color: #f59e0b; }
.pessimistic .sum-label, .pessimistic .sum-val{ color: #ef4444; }

/* ══════════════════════════ CITIES ══════════════════════════ */
.year-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.year-tab {
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Inter', sans-serif;
}

.year-tab:hover { border-color: var(--border-glow); color: var(--text-primary); }

.year-tab.active {
  background: linear-gradient(135deg, rgba(61,142,248,0.2), rgba(139,92,246,0.15));
  border-color: rgba(61,142,248,0.5);
  color: var(--accent);
}

.cities-podium {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 24px;
}

.podium-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.podium-badge {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 900;
  position: relative;
}

.podium-1 { background: linear-gradient(135deg,#f59e0b,#fbbf24); color: #000; width: 80px; }
.podium-2 { background: linear-gradient(135deg,#6b7280,#9ca3af); color: #fff; }
.podium-3 { background: linear-gradient(135deg,#92400e,#d97706); color: #fff; }

.podium-platform {
  width: 100%;
  border-radius: 8px 8px 0 0;
  display: flex; align-items: center; justify-content: center;
}
.podium-1 .podium-platform { height: 100px; background: linear-gradient(180deg,rgba(245,158,11,0.25),rgba(245,158,11,0.05)); border: 1px solid rgba(245,158,11,0.3); }
.podium-2 .podium-platform { height: 75px;  background: linear-gradient(180deg,rgba(107,114,128,0.2),rgba(107,114,128,0.05)); border: 1px solid rgba(107,114,128,0.3); }
.podium-3 .podium-platform { height: 60px;  background: linear-gradient(180deg,rgba(146,64,14,0.2),rgba(146,64,14,0.05)); border: 1px solid rgba(146,64,14,0.3); }

.podium-name { font-weight: 700; font-size: 14px; text-align: center; }
.podium-waste { font-size: 13px; color: var(--warning); font-weight: 700; }

.cities-table-card { padding: 0; overflow: hidden; }

.cities-table {
  width: 100%;
  border-collapse: collapse;
}

.cities-table thead th {
  background: var(--bg-elevated);
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.cities-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}

.cities-table tbody tr:hover { background: var(--bg-hover); }
.cities-table tbody tr:last-child { border-bottom: none; }

.cities-table td {
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-primary);
}

.rank-cell { font-weight: 800; color: var(--text-secondary); }
.city-name-cell { font-weight: 600; }
.waste-cell { font-weight: 700; color: var(--warning); }

/* ══════════════════════════ BUTTONS ══════════════════════════ */
.btn-primary {
  background: linear-gradient(135deg, #3d8ef8, #8b5cf6);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  white-space: nowrap;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(61,142,248,0.35); }
.btn-primary:active { transform: translateY(0); }
.btn-primary.full-width { width: 100%; }

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(61,142,248,0.35);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
  display: flex; align-items: center; gap: 6px;
}

.btn-outline:hover { background: rgba(61,142,248,0.08); border-color: var(--accent); }

/* ── Legend ── */
.chart-legend { display: flex; gap: 14px; flex-wrap: wrap; }

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.legend-dot {
  width: 10px; height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.legend-dot.historical { background: #3d8ef8; }
.legend-dot.forecast   { background: #8b5cf6; }

/* ══════════════════════════ LOADING ══════════════════════════ */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6,11,20,0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.loading-overlay.active { opacity: 1; pointer-events: all; }

.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 14px;
}

.spinner-ring {
  width: 48px; height: 48px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ══════════════════════════ LEAFLET OVERRIDES ══════════════════════════ */
.leaflet-popup-content-wrapper {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  border-radius: 12px !important;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5) !important;
  color: var(--text-primary) !important;
}

.leaflet-popup-tip { background: var(--bg-card) !important; }

.popup-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px; font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.popup-row { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }
.popup-val { font-weight: 700; color: var(--text-primary); }

/* ══════════════════════════ SCROLLBAR ══════════════════════════ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-glow); }

/* ══════════════════════════ RESPONSIVE ══════════════════════════ */
@media (max-width: 1200px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .charts-row { grid-template-columns: 1fr; }
  .predict-layout { grid-template-columns: 1fr 1fr; }
  .predict-layout .model-info { grid-column: span 2; }
}

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .sidebar-toggle { display: flex; }
  .bottom-row { grid-template-columns: 1fr; }
  .scenario-layout { grid-template-columns: 1fr; }
  .map-layout { flex-direction: column; }
  .map-sidebar { width: 100%; }
  .tab-panel { padding: 16px; }
}

@media (max-width: 600px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .predict-layout { grid-template-columns: 1fr; }
  .predict-layout .model-info { grid-column: 1; }
  .cities-podium { display: none; }
  .topbar { padding: 12px 16px; }
}

/* ══════════════════════════ EXPORT BAR ══════════════════════════ */
.export-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

.export-bar-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.btn-export {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  background: rgba(61,142,248,0.1);
  color: var(--accent);
  border: 1px solid rgba(61,142,248,0.3);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-export:hover {
  background: rgba(61,142,248,0.2);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn-export.full-width { width: 100%; justify-content: center; }

/* ══════════════════════════ SOLUTIONS ══════════════════════════ */
.solutions-banner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
  padding: 24px;
  background: linear-gradient(135deg, rgba(61,142,248,0.08), rgba(139,92,246,0.06));
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.banner-stat { text-align: center; }

.banner-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(135deg, #3d8ef8, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 6px;
}

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

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: transform 0.2s, border-color 0.2s;
}

.solution-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-glow);
}

.solution-card-header {
  margin-bottom: 16px;
}

.solution-risk-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.solution-cities {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.city-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.city-tag-waste {
  font-size: 11px;
  color: var(--warning);
  font-weight: 700;
}

.solution-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.solution-action-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  padding: 8px 10px;
  background: var(--bg-elevated);
  border-radius: 8px;
}

.solution-action-item i { margin-top: 2px; }

.solution-impact {
  padding: 10px 14px;
  background: rgba(99,148,255,0.05);
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
}

/* National Policies */
.national-policies { margin-top: 0; }

.policy-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 8px;
  position: relative;
}

.policy-timeline::before {
  content: '';
  position: absolute;
  left: 60px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #3d8ef8, #8b5cf6, transparent);
  opacity: 0.3;
}

.policy-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}

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

.policy-year {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  text-align: right;
  padding-top: 2px;
}

.policy-item.urgent .policy-year { color: var(--danger); }

.policy-content h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.policy-content p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}

.policy-impact {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-3);
  padding: 4px 10px;
  background: rgba(16,185,129,0.08);
  border-radius: 6px;
  border: 1px solid rgba(16,185,129,0.2);
}

/* ══════════════════════════ ABOUT ══════════════════════════ */
.about-hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
  padding: 32px;
  background: linear-gradient(135deg, rgba(61,142,248,0.06) 0%, rgba(139,92,246,0.04) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.about-hero::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,92,246,0.12), transparent 70%);
  pointer-events: none;
}

.about-badge {
  display: inline-block;
  padding: 5px 14px;
  background: linear-gradient(135deg, rgba(245,158,11,0.15), rgba(239,68,68,0.1));
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  color: var(--warning);
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}

.about-hero-content h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
  line-height: 1.2;
}

.about-hero-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.about-hero-content strong { color: var(--text-primary); }

.about-hero-stats {
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: center;
}

.hero-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}

.hero-stat-card:hover {
  border-color: var(--border-glow);
  transform: translateX(4px);
}

.hero-stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(135deg, #3d8ef8, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.hero-stat-num span {
  font-size: 16px;
  font-weight: 600;
}

.hero-stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
  font-weight: 600;
}

.hero-stat-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.about-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 0;
}

.problem-card h3, .about-two-col .card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.problem-points {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.problem-point {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  padding: 10px 12px;
  background: rgba(239,68,68,0.04);
  border-radius: 8px;
  border: 1px solid rgba(239,68,68,0.1);
}

.problem-point strong { color: var(--text-primary); }
.problem-point i { margin-top: 2px; flex-shrink: 0; }

/* Features Grid */
.features-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg-elevated);
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.feature-item:hover { border-color: var(--border-glow); }

.feature-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 15px;
  flex-shrink: 0;
}

.feature-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.feature-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Tech Stack */
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid;
  font-size: 13px;
  font-weight: 600;
  cursor: default;
  transition: transform 0.2s;
}

.tech-badge:hover { transform: translateY(-2px); }

/* Data Sources */
.data-sources {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.source-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px;
  background: var(--bg-elevated);
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
  transition: border-color 0.2s;
}

.source-item:hover { border-color: var(--border-glow); }
.source-item > i { margin-top: 2px; font-size: 16px; flex-shrink: 0; }
.source-item strong { color: var(--text-primary); }

.source-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
  line-height: 1.4;
}

/* ══════════════════════════ RESPONSIVE (ENHANCED) ══════════════════════════ */
/* ══════════════════════════ RESPONSIVE SYSTEM ══════════════════════════ */

/* ── Sidebar Overlay ── */
.sidebar-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* ── Large Screen Adjustments ── */
@media (max-width: 1200px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .charts-row { grid-template-columns: 1fr; }
  .bottom-row { grid-template-columns: 1fr; }
  .predict-layout { grid-template-columns: 1fr 1fr; }
  .scenario-layout { grid-template-columns: 1fr; }
}

/* ── Tablet & Small Desktop (Mobile Mode Start) ── */
@media (max-width: 1024px) {
  :root {
    --sidebar-w: 280px;
  }

  .sidebar {
    transform: translateX(-100%);
    box-shadow: 20px 0 50px rgba(0,0,0,0.5);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
    width: 100%;
  }

  .sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
  }

  .topbar {
    padding: 12px 20px;
  }

  .tab-panel {
    padding: 20px;
  }

  .predict-layout {
    grid-template-columns: 1fr;
  }
}

/* ── Mobile Specific ── */
@media (max-width: 640px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .topbar-right {
    width: 100%;
    justify-content: space-between;
  }

  .page-title {
    font-size: 18px;
  }

  .kpi-value {
    font-size: 24px;
  }

  .stats-row {
    grid-template-columns: 1fr;
  }

  .map-layout {
    flex-direction: column;
  }

  .map-sidebar {
    width: 100%;
  }

  #main-map {
    height: 350px !important;
  }

  .cities-podium {
    flex-direction: column;
    gap: 12px;
    align-items: center;
  }

  .podium-item {
    width: 100%;
    max-width: 300px;
  }

  .year-tabs {
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }

  .year-tab {
    flex-shrink: 0;
  }

  /* Table responsiveness */
  .cities-table-card {
    padding: 12px;
  }

  .cities-table th, .cities-table td {
    padding: 10px 8px;
    font-size: 12px;
  }

  .solutions-banner {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .banner-stat {
    padding: 12px;
  }

  .banner-num {
    font-size: 20px;
  }

  .national-policies {
    padding: 16px;
  }

  .policy-item {
    flex-direction: column;
    gap: 12px;
  }

  .policy-year {
    width: auto;
    display: inline-block;
    padding: 4px 12px;
    background: var(--accent-glow);
    border-radius: 6px;
    font-size: 12px;
  }

  .about-hero-stats {
    flex-direction: column;
    gap: 12px;
  }

  /* Prevent out-of-bound elements */
  .card, .chart-card, .tab-panel {
    max-width: 100%;
    overflow-x: hidden;
  }

  /* Ensure inputs don't zoom on iOS */
  input, select, textarea {
    font-size: 16px !important;
  }
}

/* ── Animation for Sidebar ── */
.sidebar {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}