:root {
  color-scheme: dark;
  --bg: #0c1017;
  --panel: #151b26;
  --panel-2: #101722;
  --text: #eef4ff;
  --muted: #8f9db3;
  --line: #273246;
  --green: #2ee887;
  --yellow: #f7c948;
  --red: #ff6b6b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #182235, var(--bg) 45%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(12, 16, 23, 0.82);
  backdrop-filter: blur(14px);
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 24px;
  letter-spacing: 0.02em;
}

h2 {
  margin-bottom: 14px;
  font-size: 18px;
}

p {
  margin-top: 8px;
  color: var(--muted);
}

.badge {
  min-width: 86px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--yellow);
  text-align: center;
  background: var(--panel);
}

.badge.online {
  color: var(--green);
}

.badge.offline {
  color: var(--red);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  padding: 18px;
}

.video-card,
.side-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(21, 27, 38, 0.9);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.video-card {
  overflow: hidden;
}

.pipeline {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}

.stage {
  flex: 0 0 auto;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
  background: var(--panel-2);
}

.stage.active {
  border-color: rgba(46, 232, 135, 0.5);
  color: var(--green);
}

.arrow {
  color: var(--muted);
}

.video-wrap {
  display: grid;
  place-items: center;
  min-height: 420px;
  background: #05070b;
}

#video {
  display: block;
  width: 100%;
  height: auto;
  max-height: calc(100vh - 190px);
  object-fit: contain;
}

.side-card {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 18px;
}

.status-grid {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 10px 12px;
  margin: 0;
}

.status-grid dt {
  color: var(--muted);
}

.status-grid dd {
  margin: 0;
  word-break: break-all;
}

.device-select {
  width: 100%;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: var(--panel-2);
}

.detections {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.detections.empty {
  color: var(--muted);
}

.det-item {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel-2);
}

.det-title {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--green);
  font-weight: 700;
}

.det-box {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

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