:root {
  --bg-0: #06090d;
  --bg-1: #0b0f15;
  --bg-2: #0f141c;
  --bg-3: #161d27;
  --border: #1c2531;
  --border-hi: #2a3647;
  --text: #e5edf4;
  --muted: #6b7a8c;
  --muted-2: #8a98ab;
  --accent: #5ce1e6;
  --accent-dim: #2dd4d9;
  --accent-glow: rgba(92, 225, 230, 0.45);
  --warn: #ffb454;
  --danger: #ff5c7c;
  --ok: #6ee7b7;
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.55), 0 0 0 1px var(--border);

  --font-sans: 'Inter', -apple-system, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0; height: 100%;
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============ MAP ============ */
#map {
  position: fixed;
  inset: 0;
  background: var(--bg-0);
  z-index: 0;
}
/* Hide Leaflet's default zoom buttons (we keep the controls but restyle below) */
.leaflet-container {
  background: #1a2030 !important;
  font-family: var(--font-mono);
  font-size: 11px;
}
.leaflet-control-zoom a {
  background: rgba(15, 20, 28, 0.92) !important;
  color: var(--accent) !important;
  border: 1px solid var(--border-hi) !important;
  backdrop-filter: blur(12px);
}
.leaflet-control-zoom a:hover { background: rgba(31, 41, 55, 0.95) !important; }
.leaflet-control-attribution {
  background: rgba(11, 15, 21, 0.85) !important;
  color: var(--muted) !important;
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 8px !important;
}
.leaflet-control-attribution a { color: var(--accent-dim) !important; }
.leaflet-popup-content-wrapper {
  background: rgba(11, 15, 21, 0.95) !important;
  color: var(--text) !important;
  border: 1px solid var(--accent-dim);
  border-radius: 6px !important;
  box-shadow: 0 0 24px var(--accent-glow);
  font-family: var(--font-mono);
}
.leaflet-popup-tip { background: rgba(11, 15, 21, 0.95) !important; }
.leaflet-popup-close-button { color: var(--muted) !important; }

/* Live marker */
.live-marker {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent);
  border: 2px solid #04060a;
  box-shadow: 0 0 0 4px rgba(92, 225, 230, 0.18),
              0 0 18px var(--accent-glow);
  position: relative;
}
.live-marker::after {
  content: '';
  position: absolute; inset: -8px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0;
  animation: pulse 1.8s infinite cubic-bezier(0, 0, 0.2, 1);
}
@keyframes pulse {
  0% { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(2.2); opacity: 0; }
}

/* ============ TOPBAR ============ */
#topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 600;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px;
  padding-top: calc(12px + env(safe-area-inset-top));
  background: linear-gradient(to bottom, rgba(6, 9, 13, 0.95), rgba(6, 9, 13, 0.4) 70%, transparent);
  pointer-events: none;
}
#topbar > * { pointer-events: auto; }
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 12px;
  color: var(--text);
  text-shadow: 0 0 12px rgba(0,0,0,0.8);
}
.brand .logo {
  display: inline-flex;
  width: 32px; height: 32px;
  align-items: center; justify-content: center;
  border-radius: 9px;
  background: linear-gradient(135deg, rgba(92,225,230,0.18), rgba(92,225,230,0.04));
  border: 1px solid var(--border-hi);
  color: var(--accent);
  box-shadow: 0 0 18px rgba(92,225,230,0.2), inset 0 0 12px rgba(92,225,230,0.05);
}
.brand-text { line-height: 1; }

.live {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text);
  background: rgba(15, 20, 28, 0.85);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border: 1px solid var(--border-hi);
  border-radius: 999px;
  box-shadow: 0 6px 22px rgba(0,0,0,0.5);
  text-transform: uppercase;
}
.live .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--muted); box-shadow: 0 0 0 0 transparent;
  transition: background 0.3s;
}
.live.ok .dot {
  background: var(--ok);
  box-shadow: 0 0 12px rgba(110, 231, 183, 0.7);
  animation: dotPulse 2s infinite;
}
.live.stale .dot { background: var(--warn); box-shadow: 0 0 10px rgba(255, 180, 84, 0.6); }
.live.dead .dot { background: var(--danger); box-shadow: 0 0 10px rgba(255, 92, 124, 0.6); }
@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(110, 231, 183, 0.65); }
  50% { box-shadow: 0 0 0 6px rgba(110, 231, 183, 0); }
}

/* ============ PANEL (slide-up bottom drawer on mobile, sidebar on desktop) ============ */
#panel {
  position: fixed;
  z-index: 500;
  background: linear-gradient(180deg, rgba(11,15,21,0.96), rgba(6,9,13,0.96));
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--border-hi);
  box-shadow: var(--shadow-lg);
  color: var(--text);
  transition: transform 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Mobile: bottom drawer */
@media (max-width: 760px) {
  #panel {
    left: 0; right: 0; bottom: 0;
    max-height: 82vh;
    border-radius: 18px 18px 0 0;
    transform: translateY(calc(100% - 132px));
    padding-top: 38px;
  }
  #panel:not(.collapsed) { transform: translateY(0); }
  .panel-inner {
    max-height: calc(82vh - 50px);
    overflow-y: auto;
    padding: 4px 18px calc(18px + env(safe-area-inset-bottom));
    -webkit-overflow-scrolling: touch;
  }
  /* Big tap target: full-width handle bar at top of drawer */
  #drawerHandle {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 38px;
    border: none;
    background: transparent;
    color: var(--muted-2);
    cursor: pointer;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 4px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    padding: 0;
  }
  #drawerHandle .grip {
    width: 44px; height: 5px; border-radius: 999px;
    background: var(--border-hi);
    transition: background 0.2s, width 0.2s;
  }
  #drawerHandle .chev {
    display: flex;
    color: var(--muted-2);
    transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  }
  #panel.collapsed #drawerHandle .chev { transform: rotate(0deg); }
  #panel:not(.collapsed) #drawerHandle .chev { transform: rotate(180deg); }
  #drawerHandle:hover .grip,
  #drawerHandle:active .grip { background: var(--accent); width: 52px; }
}

/* Desktop: sidebar */
@media (min-width: 761px) {
  #panel {
    top: 70px; bottom: 18px; left: 18px;
    width: 380px;
    border-radius: 14px;
    transform: none !important;
  }
  .panel-inner {
    height: 100%;
    overflow-y: auto;
    padding: 22px 22px 22px;
  }
  #drawerHandle { display: none; }
}

.panel-inner > section + section {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}

/* ============ DEVICE BLOCK ============ */
.device-block { padding-top: 8px; }
.device-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}
#deviceId {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--text);
}
#lastSeen { font-family: var(--font-mono); font-size: 11px; }
.coord-row {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.01em;
}
.coord-row .sep { color: var(--muted-2); margin: 0 8px; }

/* ============ STAT GRID ============ */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.stat {
  background: var(--bg-2);
  padding: 12px 14px;
  display: flex; flex-direction: column;
  gap: 4px;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.stat-value {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  display: flex; align-items: baseline; gap: 4px;
  line-height: 1;
}
.stat-value .unit {
  font-size: 11px;
  color: var(--muted-2);
  font-weight: 500;
  margin-left: 2px;
}
.badge {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(92, 225, 230, 0.12);
  color: var(--accent);
  border: 1px solid rgba(92, 225, 230, 0.25);
  margin-left: auto;
}
.badge.warn { background: rgba(255, 180, 84, 0.12); color: var(--warn); border-color: rgba(255, 180, 84, 0.3); }
.badge.danger { background: rgba(255, 92, 124, 0.12); color: var(--danger); border-color: rgba(255, 92, 124, 0.3); }

/* ============ SECTION TITLES ============ */
h3 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--muted-2);
  margin: 0 0 12px;
}

/* ============ TRIP STATS ============ */
.trip-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
}
.trip-stat { display: flex; flex-direction: column; gap: 3px; }
.trip-label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.trip-value {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--accent);
  display: flex; align-items: baseline; gap: 4px;
  line-height: 1;
}
.trip-value .unit {
  font-size: 11px;
  color: var(--muted-2);
  font-weight: 500;
}

/* ============ CHARTS ============ */
.chart-row + .chart-row { margin-top: 14px; }
.chart-label {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--font-mono);
  margin-bottom: 4px;
}
.chart-title {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.chart-stats {
  font-size: 11px;
  color: var(--text);
}
.chart-stats > span { color: var(--accent); font-weight: 600; }
.spark {
  width: 100%;
  height: 42px;
  display: block;
  border-radius: 5px;
  background: rgba(255,255,255,0.02);
}
.spark .area { fill: url(#sparkGrad); }
.spark .line { fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linejoin: round; stroke-linecap: round; filter: drop-shadow(0 0 4px rgba(92, 225, 230, 0.5)); }
.spark .last-dot { fill: var(--accent); filter: drop-shadow(0 0 4px var(--accent)); }
.spark .empty {
  fill: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
}

/* ============ DEVICE LIST ============ */
#deviceList { display: flex; flex-direction: column; gap: 6px; }
.device-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: all 0.15s;
}
.device-item:hover { border-color: var(--border-hi); }
.device-item.active {
  border-color: var(--accent-dim);
  background: linear-gradient(135deg, rgba(92,225,230,0.08), rgba(92,225,230,0.02));
  box-shadow: 0 0 0 1px var(--accent-dim), 0 0 16px rgba(92,225,230,0.12);
}
.device-item .id { color: var(--text); font-weight: 600; }
.device-item .meta { color: var(--muted-2); font-size: 10px; }

/* ============ FOOTER ============ */
.panel-footer {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.muted { color: var(--muted); }
.footer-actions { display: flex; gap: 8px; }
#refreshBtn, #hardRefreshBtn, #logoutBtn {
  background: transparent;
  border: 1px solid var(--border-hi);
  color: var(--accent);
  width: 32px; height: 32px;
  border-radius: 8px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
#refreshBtn:hover, #hardRefreshBtn:hover, #logoutBtn:hover {
  background: rgba(92,225,230,0.08);
  border-color: var(--accent-dim);
  box-shadow: 0 0 12px rgba(92,225,230,0.2);
}
#hardRefreshBtn {
  color: var(--warn);
  border-color: rgba(255, 180, 84, 0.35);
}
#hardRefreshBtn:hover {
  background: rgba(255, 180, 84, 0.08);
  border-color: var(--warn);
  box-shadow: 0 0 12px rgba(255, 180, 84, 0.25);
}
#logoutBtn { color: var(--danger); }
#logoutBtn:hover {
  background: rgba(255,92,124,0.08);
  border-color: rgba(255,92,124,0.5);
  box-shadow: 0 0 12px rgba(255,92,124,0.2);
}
#refreshBtn.spinning svg, #hardRefreshBtn.spinning svg { animation: spin 0.6s linear; }
@keyframes spin { to { transform: rotate(360deg); } }

/* user-tag in topbar */
.topright { display: flex; gap: 10px; align-items: center; pointer-events: auto; }
.user-tag {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 11px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  background: rgba(15, 20, 28, 0.85);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border: 1px solid var(--border-hi);
  border-radius: 999px;
  box-shadow: 0 6px 22px rgba(0,0,0,0.5);
  color: var(--muted-2);
}
.user-tag svg { color: var(--accent); }
@media (max-width: 480px) {
  .user-tag span { display: none; } /* sur très petits écrans, juste l'icône */
}

/* Mobile-only: hide everything except the peek (device-block) when collapsed */
@media (max-width: 760px) {
  #panel.collapsed .panel-inner > section:not(.device-block),
  #panel.collapsed .panel-footer { display: none; }
  #panel.collapsed .panel-inner { padding-bottom: 16px; }
  #panel.collapsed .device-block {
    padding: 8px 0 4px;
    cursor: pointer;
  }
  /* Make the whole peek tappable on collapsed state */
  #panel.collapsed .device-block::after {
    content: '';
    position: absolute;
    inset: 38px 0 0 0;
    height: 94px;
    z-index: 1;
  }
}

/* Smooth scroll & scrollbar */
.panel-inner::-webkit-scrollbar { width: 6px; }
.panel-inner::-webkit-scrollbar-track { background: transparent; }
.panel-inner::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 3px; }
.panel-inner::-webkit-scrollbar-thumb:hover { background: var(--muted); }