:root {
  color-scheme: dark;
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  --bg: #0d1016;
  --panel: #121824;
  --border: #2a3446;
  --accent: #4f8cff;
  --text: #ebf1ff;
  --muted: #9ca8bf;
  --ok: #40c076;
  --warn: #ffb547;
  --bad: #ff6b6b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at top, #1a2333, var(--bg) 45%);
  color: var(--text);
  overscroll-behavior: none;
}

body {
  touch-action: manipulation;
}

button {
  appearance: none;
  border: 1px solid var(--border);
  background: #182131;
  color: var(--text);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  font: inherit;
  min-height: 44px;
  cursor: pointer;
}

button:active { transform: translateY(1px); }

.app-shell {
  max-width: 1100px;
  margin: 0 auto;
  min-height: 100vh;
  padding: 1rem;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 0.8rem;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: color-mix(in srgb, var(--panel), transparent 20%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.9rem;
}

.top-bar h1 {
  margin: 0;
  font-size: 1.2rem;
}

.top-bar p {
  margin: 0.3rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.top-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.remote-stage {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #000;
  overflow: hidden;
  display: grid;
  place-items: center;
}

.remote-surface {
  width: 100%;
  height: 100%;
  max-height: 72vh;
  aspect-ratio: 9 / 16;
  position: relative;
  touch-action: none;
}

#remoteVideo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.status-overlay {
  position: absolute;
  top: 0.6rem;
  left: 0.6rem;
  right: 0.6rem;
  padding: 0.5rem 0.7rem;
  border-radius: 10px;
  background: rgb(11 16 24 / 72%);
  border: 1px solid rgb(133 153 194 / 25%);
  pointer-events: none;
}

.status-overlay p {
  margin: 0;
  font-size: 0.86rem;
}

#qualityIndicator.good { color: var(--ok); }
#qualityIndicator.fair { color: var(--warn); }
#qualityIndicator.poor { color: var(--bad); }

.controls {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--panel), transparent 20%);
  padding: 0.9rem;
  display: grid;
  gap: 0.8rem;
}

.android-nav,
.audio-tools {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.audio-tools p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 760px) {
  .app-shell { padding: 0.75rem; }
  .top-bar { flex-direction: column; align-items: stretch; }
  .top-actions { justify-content: stretch; }
  .top-actions button { flex: 1 1 45%; }
  .android-nav button { flex: 1 1 30%; }
  .remote-surface { max-height: 65vh; }
}