:root {
  --bg: #eef3ff;
  --panel: rgba(255, 255, 255, 0.74);
  --panel-border: rgba(255, 255, 255, 0.88);
  --text: #17233d;
  --subtext: #516283;
  --primary: #3668ff;
  --primary-strong: #2452da;
  --safe: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 14px 30px rgba(35, 54, 118, 0.14);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, #f7f8ff 0%, #eaf1ff 45%, #e2edff 100%);
}

body.dark {
  --bg: #090f1e;
  --panel: rgba(16, 26, 49, 0.78);
  --panel-border: rgba(121, 150, 224, 0.22);
  --text: #e8eeff;
  --subtext: #b2c2e8;
  --primary: #6d8dff;
  --primary-strong: #8da4ff;
  --shadow: 0 18px 34px rgba(0, 0, 0, 0.44);
  background: radial-gradient(circle at top left, #0f1830 0%, #090f1e 55%, #070b16 100%);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 340px minmax(500px, 1fr) 340px;
  gap: 16px;
  padding: 16px;
}

.panel {
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  padding: 16px;
  overflow: auto;
}

.panel-header h1 {
  margin: 0;
  font-size: 1.3rem;
}

.panel-header p {
  margin: 6px 0 14px;
  color: var(--subtext);
  font-size: 0.92rem;
}

.quick-actions, .inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.card {
  border: 1px solid rgba(133, 160, 221, 0.22);
  border-radius: 14px;
  padding: 12px;
  margin-top: 12px;
  background: rgba(255, 255, 255, 0.46);
}

body.dark .card { background: rgba(17, 28, 50, 0.55); }

.card h2 {
  margin: 0 0 10px;
  font-size: 1rem;
}

label {
  display: block;
  font-size: 0.8rem;
  color: var(--subtext);
  margin-bottom: 8px;
}

input, select {
  width: 100%;
  margin-top: 6px;
  border-radius: 10px;
  border: 1px solid rgba(122, 148, 212, 0.35);
  padding: 10px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.85);
}

body.dark input, body.dark select {
  background: rgba(15, 23, 44, 0.88);
  border-color: rgba(111, 138, 204, 0.4);
}

.grid-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

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

.toggle input {
  width: auto;
  margin: 0;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 9px 12px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.18s, opacity 0.18s, background 0.18s;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-strong)); color: #fff; }
.btn-ghost { background: rgba(128, 153, 220, 0.16); color: var(--text); }

.map-panel { display: flex; flex-direction: column; }

#map {
  height: 58vh;
  min-height: 430px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(133, 160, 221, 0.25);
  filter: saturate(1.22) contrast(1.06) brightness(1.03);
}

.trip-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(140px, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}

.route-card {
  border-radius: 12px;
  padding: 10px;
  border: 1px solid rgba(123, 147, 209, 0.25);
  background: rgba(255, 255, 255, 0.6);
  cursor: pointer;
}

body.dark .route-card { background: rgba(20, 32, 58, 0.7); }
.route-card.active { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.route-card .title { font-weight: 700; font-size: 0.86rem; }
.route-card .sub { color: var(--subtext); font-size: 0.77rem; margin-top: 4px; }

.chart-card { margin-top: 10px; }
#batteryStatus { margin-top: 10px; font-weight: 700; }

.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.metric {
  border: 1px solid rgba(123, 147, 209, 0.22);
  border-radius: 10px;
  padding: 9px;
  background: rgba(255, 255, 255, 0.52);
}

body.dark .metric { background: rgba(17, 28, 50, 0.72); }
.metric .k { font-size: 0.73rem; color: var(--subtext); }
.metric .v { margin-top: 3px; font-weight: 700; }

.insight-list { list-style: none; padding: 0; margin: 0; }
.insight-list li {
  margin-bottom: 8px;
  padding: 8px 10px;
  border-left: 4px solid var(--primary);
  background: rgba(255, 255, 255, 0.52);
  border-radius: 8px;
  font-size: 0.84rem;
}

body.dark .insight-list li { background: rgba(17, 28, 50, 0.72); }
.insight-safe { border-left-color: var(--safe); }
.insight-warn { border-left-color: var(--warn); }
.insight-danger { border-left-color: var(--danger); }

.list { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.list-item {
  border: 1px solid rgba(123, 147, 209, 0.2);
  border-radius: 10px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.58);
}

body.dark .list-item { background: rgba(17, 28, 50, 0.72); }
.list-item .actions { display: flex; gap: 6px; margin-top: 8px; }

.marker-distance {
  background: #111827;
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 2px 7px;
  font-size: 12px;
}

body.dark .marker-distance { background: #dbe7ff; color: #0b1225; }
body.dark #map { filter: saturate(1.18) contrast(1.04) brightness(1); }

@media (max-width: 1240px) {
  .app-shell { grid-template-columns: 1fr; }
  #map { height: 50vh; min-height: 350px; }
}