/* ── RESET & BASE ── */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", system-ui, sans-serif;
}

:root {
  --bg-primary: #0a0e1a;
  --bg-card: #111827;
  --bg-card-hover: #1a2235;
  --border: #1e2d45;
  --accent: #00d4ff;
  --accent-green: #00e676;
  --accent-orange: #ffa726;
  --accent-red: #ef5350;
  --text-primary: #e8eaf0;
  --text-secondary: #8892a4;
  --text-muted: #4a5568;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

/* ── NAVBAR ── */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand-icon {
  font-size: 20px;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
}

.brand-tag {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding-left: 10px;
  border-left: 1px solid var(--border);
}

.nav-tabs {
  display: flex;
  gap: 4px;
}

.tab-btn {
  padding: 8px 20px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

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

.tab-btn.active {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--accent-green);
}

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

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

/* ── MAIN CONTENT ── */
.main-content {
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

/* ── TAB PANELS ── */
.tab-panel {
  display: none;
}

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

/* ── KPI ROW ── */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

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

.kpi-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.kpi-value.active-val {
  color: var(--accent-green);
}
.kpi-value.charging-val {
  color: var(--accent);
}
.kpi-value.alert-val {
  color: var(--accent-red);
}

.kpi-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── CARDS ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-header h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.card-badge {
  font-size: 11px;
  color: var(--accent);
  background: rgba(0, 212, 255, 0.1);
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.refresh-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
}

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

/* ── DASHBOARD GRID ── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 16px;
  margin-bottom: 16px;
}

/* ── MAPS ── */
.map-card #fleetMap,
.map-card #journeyMap {
  height: 420px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

/* ── VEHICLE LIST ── */
.vehicle-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 420px;
  overflow-y: auto;
}

.vehicle-item {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
}

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

.vehicle-id {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.vehicle-status {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
}

.status-active {
  background: rgba(0, 230, 118, 0.1);
  color: var(--accent-green);
  border: 1px solid rgba(0, 230, 118, 0.2);
}

.status-charging {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.status-alert {
  background: rgba(239, 83, 80, 0.1);
  color: var(--accent-red);
  border: 1px solid rgba(239, 83, 80, 0.2);
}

.status-idle {
  background: rgba(74, 85, 104, 0.2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.battery-bar-bg {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.battery-bar {
  height: 100%;
  border-radius: 2px;
  transition: width 0.3s;
}

.vehicle-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-muted);
}

/* ── ALERTS ── */
.alerts-card {
  margin-bottom: 0;
}

.alerts-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.alert-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
}

.alert-critical {
  background: rgba(239, 83, 80, 0.08);
  border: 1px solid rgba(239, 83, 80, 0.2);
  color: var(--accent-red);
}

.alert-warning {
  background: rgba(255, 167, 38, 0.08);
  border: 1px solid rgba(255, 167, 38, 0.2);
  color: var(--accent-orange);
}

/* ── JOURNEY PLANNER ── */
.journey-controls {
  margin-bottom: 16px;
}

.journey-controls h3 {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.journey-inputs {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 140px;
}

.input-group label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.input-group input,
.input-group select {
  padding: 10px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}

.input-group input:focus,
.input-group select:focus {
  border-color: var(--accent);
}

.plan-btn {
  padding: 10px 24px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #000;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.plan-btn:hover {
  background: #00b8d9;
}

.journey-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.ai-plan {
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-secondary);
  height: 420px;
  overflow-y: auto;
  white-space: pre-wrap;
}

.placeholder-text {
  color: var(--text-muted);
  font-style: italic;
}

/* ── AI ASSISTANT ── */
.ai-assistant {
  max-width: 800px;
  margin: 0 auto;
}

.ai-assistant h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.ai-subtitle {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 20px;
}

.ai-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.suggestion-btn {
  padding: 8px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
}

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

.ai-chat {
  height: 320px;
  overflow-y: auto;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ai-message {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.ai-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.user-avatar {
  background: rgba(0, 230, 118, 0.1);
  border-color: rgba(0, 230, 118, 0.2);
}

.ai-bubble {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 90%;
  white-space: pre-wrap;
}

.ai-input-row {
  display: flex;
  gap: 10px;
}

.ai-input-row input {
  flex: 1;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}

.ai-input-row input:focus {
  border-color: var(--accent);
}

.ai-input-row button {
  padding: 12px 24px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #000;
  font-weight: 600;
  cursor: pointer;
}

.ai-loading {
  color: var(--accent);
  animation: pulse 1.5s infinite;
}