:root {
  --bg: #f5f5f7;
  --fg: #1a1a1a;
  --muted: #6c6c70;
  --card: #ffffff;
  --border: #d8d8dc;
  --accent: #2563eb;
  --accent-fg: #ffffff;
  --warn: #b45309;
  --danger: #b91c1c;
  --pressed: #c7d2fe;
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a1a;
    --fg: #f5f5f7;
    --muted: #9a9aa0;
    --card: #2a2a2e;
    --border: #3a3a40;
    --accent: #60a5fa;
    --accent-fg: #0a0a0a;
    --warn: #f59e0b;
    --danger: #f87171;
    --pressed: #1e3a8a;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  padding: env(safe-area-inset-top) env(safe-area-inset-right)
           env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.remote {
  max-width: 540px;
  margin: 0 auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.remote__header h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.remote__footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.75rem;
  margin-top: 0.5rem;
}

/* Cards / sections share a base */
.now-playing,
.volume,
.pause,
.advanced {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

/* Now-playing */
.now-playing { display: flex; gap: 0.75rem; align-items: flex-start; }
.now-playing__icon { font-size: 1.5rem; }
.now-playing__label { color: var(--muted); font-size: 0.85rem; }
.now-playing__title { font-size: 1.05rem; font-weight: 500; margin-top: 0.1rem; }
.now-playing__more {
  background: none; border: 0; color: var(--accent);
  padding: 0.25rem 0; font-size: 0.85rem; cursor: pointer; margin-top: 0.25rem;
}
.now-playing__list { list-style: none; margin: 0.5rem 0 0; padding: 0; font-size: 0.85rem; color: var(--muted); }

/* Volume */
.volume__head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.5rem; }
.volume__readout { color: var(--muted); font-variant-numeric: tabular-nums; }
input[type="range"] { width: 100%; accent-color: var(--accent); height: 44px; }
.volume__row { display: grid; grid-template-columns: 1fr 1.4fr 1fr; gap: 0.5rem; margin-top: 0.5rem; }

/* Buttons */
.btn {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  font-size: 1rem;
  background: var(--card);
  color: var(--fg);
  cursor: pointer;
  min-height: 48px;
  font-weight: 500;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: var(--accent-fg); border-color: transparent; font-size: 1.1rem; width: 100%; min-height: 60px; }
.btn--ghost   { background: var(--card); }
.btn--warn    { color: var(--warn);   border-color: var(--warn); }
.btn--danger  { color: var(--danger); border-color: var(--danger); }
.btn[aria-pressed="true"] { background: var(--pressed); border-color: transparent; }

/* Pause confirmation */
.pause.is-confirmed .btn--primary { background: var(--muted); }

/* Advanced */
.advanced summary { cursor: pointer; padding: 0.25rem 0; font-weight: 500; }
.advanced__body { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 0.5rem; }
.advanced h2 { font-size: 0.85rem; text-transform: uppercase; color: var(--muted); margin: 0.5rem 0 0.25rem; letter-spacing: 0.05em; }
.tab-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.tab-list .muted { color: var(--muted); padding: 0.5rem 0; }
.tab-list button { width: 100%; text-align: left; }
.row { display: flex; gap: 0.5rem; }
.row .btn { flex: 1; }
.status { display: grid; grid-template-columns: auto 1fr; gap: 0.25rem 1rem; margin: 0; }
.status dt { color: var(--muted); }
.status dd { margin: 0; font-variant-numeric: tabular-nums; }