:root {
  --bg: #0b1b2b;
  --panel: rgba(19, 38, 61, 0.75);
  --card: rgba(28, 54, 86, 0.85);
  --accent: #39b6ff;
  --accent-2: #6affc9;
  --warn: #f7b500;
  --danger: #ff5975;
  --text: #dbe8ff;
  --muted: #8ca3c0;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 15px 35px rgba(0, 0, 0, 0.35);
  font-family: "Segoe UI", "PingFang SC", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(circle at 20% 20%, rgba(57, 182, 255, 0.15), transparent 25%),
    radial-gradient(circle at 80% 0%, rgba(106, 255, 201, 0.1), transparent 25%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.page {
  padding: 20px 24px 32px;
  max-width: 1400px;
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, rgba(57, 182, 255, 0.18), rgba(16, 34, 55, 0.8));
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand .dot {
  width: 14px; height: 14px; border-radius: 50%;
  background: linear-gradient(145deg, #6affc9, #39b6ff);
  box-shadow: 0 0 12px #39b6ff;
}
.title { font-size: 20px; font-weight: 700; letter-spacing: 0.5px; }
.subtitle { color: var(--muted); font-size: 12px; }

.top-stats { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 12px;
}
.chip strong { font-size: 16px; color: var(--accent-2); }
.chip.time { color: #fff; font-weight: 600; }

.grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}
.panel.wide { grid-column: span 3; }

.panel-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px;
}
.panel h2 { margin: 0; font-size: 16px; letter-spacing: 0.3px; }
.tag {
  padding: 4px 8px; border-radius: 8px; font-size: 12px;
  border: 1px solid var(--border);
}
.tag.ok { color: var(--accent-2); }
.tag.info { color: var(--accent); }
.tag.warn { color: var(--warn); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  position: relative;
  overflow: hidden;
}
.card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(57, 182, 255, 0.08), transparent 40%);
  pointer-events: none;
}
.label { color: var(--muted); font-size: 12px; }
.value { font-size: 22px; font-weight: 700; margin-top: 6px; }
.small { font-size: 12px; color: var(--muted); }
.bar {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 8px;
  margin-top: 8px;
  height: 8px;
}
.bar div {
  height: 100%;
  border-radius: 8px;
  background: linear-gradient(90deg, #39b6ff, #6affc9);
  width: 40%;
  transition: width 0.3s ease;
}
.posture { display: flex; gap: 12px; font-size: 13px; }
.coords { font-size: 14px; }

.trend { margin-top: 14px; background: rgba(255, 255, 255, 0.02); border-radius: 12px; padding: 12px; border: 1px solid var(--border); }
.trend-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.legend { display: flex; gap: 12px; color: var(--muted); font-size: 12px; }
.legend .dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 4px; }
.legend .blue { background: #39b6ff; }
.legend .green { background: #6affc9; }
.legend .yellow { background: #f7b500; }

.control { display: flex; flex-direction: column; gap: 12px; }
.control-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.control-row label { color: var(--muted); font-size: 13px; }
.slider-wrap { flex: 1; display: flex; align-items: center; gap: 8px; }
input[type="range"] { width: 100%; accent-color: var(--accent); }
input[type="number"], input[type="text"], input[type="datetime-local"] {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 8px;
}
.grid-2 { gap: 12px; }
.grid-2 > div { flex: 1; }
.output {
  flex: 1;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed var(--border);
  padding: 10px;
  border-radius: 8px;
  color: #fff;
}
.control-actions { display: flex; gap: 10px; }
button {
  background: linear-gradient(135deg, #39b6ff, #6affc9);
  color: #0b1b2b;
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.25);
}
button.ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border: 1px solid var(--border);
}
button:hover { opacity: 0.92; }

.log {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  border-radius: 10px;
  min-height: 70px;
  padding: 8px 10px;
  font-size: 12px;
  color: var(--muted);
  overflow-y: auto;
  max-height: 120px;
}

.switch {
  position: relative; display: inline-block; width: 48px; height: 24px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; cursor: pointer; inset: 0;
  background: rgba(255, 255, 255, 0.1);
  transition: .2s;
  border-radius: 24px;
  border: 1px solid var(--border);
}
.slider:before {
  position: absolute; content: "";
  height: 18px; width: 18px; left: 3px; bottom: 3px;
  background: #fff; transition: .2s; border-radius: 50%;
}
input:checked + .slider {
  background: linear-gradient(135deg, #39b6ff, #6affc9);
}
input:checked + .slider:before { transform: translateX(24px); }

.query-form { display: flex; flex-direction: column; gap: 10px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.range { display: flex; align-items: center; gap: 6px; }
.actions { display: flex; gap: 10px; }
.video-list { margin-top: 8px; display: flex; flex-direction: column; gap: 8px; }
.video-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.video-meta { display: flex; flex-direction: column; gap: 4px; }
.video-actions { display: flex; gap: 8px; }
.video-actions a {
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
}

@media (max-width: 1100px) {
  .grid { grid-template-columns: 1fr; }
  .panel.wide { grid-column: span 1; }
}