* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; overflow: hidden; background: #0b0f14; color: #e8eef2; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; user-select: none; -webkit-user-select: none; }

:root {
  --btn-size: 44px;
  --font: 15px;
  --bg: #0b0f14;
  --panel: #161c24;
  --text: #e8eef2;
  --accent: #2d8cff;
  --border: #2a333d;
}
[data-theme="night"] {
  --bg: #000000;
  --panel: #0a0a0a;
  --text: #ff8a3d;
  --accent: #ff8a3d;
  --border: #241a0f;
}
body { background: var(--bg); color: var(--text); }

[data-mode="driving"] {
  --btn-size: 72px;
  --font: 20px;
}

#app { display: flex; flex-direction: column; height: 100%; width: 100%; }

/* ---- top bar ---- */
#topbar {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px; background: var(--panel); border-bottom: 1px solid var(--border);
  flex-shrink: 0; overflow-x: auto; white-space: nowrap;
}
#topbar button, .tile, .chip {
  min-height: var(--btn-size); min-width: var(--btn-size);
  font-size: var(--font);
  background: #1f2a36; color: var(--text); border: 1px solid var(--border); border-radius: 10px;
  padding: 6px 10px; cursor: pointer;
}
[data-theme="night"] #topbar button, [data-theme="night"] .tile, [data-theme="night"] .chip { background: #120a00; border-color: #3a2410; }
#topbar button:active, .tile:active, .chip:active { transform: scale(0.96); }
#clock { margin-left: auto; font-variant-numeric: tabular-nums; font-weight: 600; }
#mode-badge { font-weight: 700; padding: 4px 10px; border-radius: 20px; background: var(--accent); color: #fff; }
[data-mode="driving"] #mode-badge { background: #d9452b; }

/* ---- pane grid ---- */
#panes { flex: 1; display: grid; gap: 2px; background: var(--border); overflow: hidden; }
#panes[data-layout="single"] { grid-template-columns: 1fr; }
#panes[data-layout="split-h"] { grid-template-columns: var(--ratio, 1fr) var(--ratio2, 1fr); }
#panes[data-layout="split-v"] { grid-template-rows: var(--ratio, 1fr) var(--ratio2, 1fr); }
.pane { position: relative; background: #000; overflow: hidden; min-width: 0; min-height: 0; }
.pane iframe { width: 100%; height: 100%; border: 0; }
.pane[hidden] { display: none; }

.pane-bar {
  position: absolute; top: 0; left: 0; right: 0; z-index: 5;
  display: flex; gap: 4px; padding: 4px; background: rgba(0,0,0,0.55);
  overflow-x: auto; white-space: nowrap;
}
.pane-bar button { font-size: 13px; padding: 4px 8px; min-height: 32px; min-width: 32px; }

.driving-overlay {
  position: absolute; inset: 0; z-index: 10; display: none;
  align-items: center; justify-content: center; flex-direction: column; gap: 12px;
  background: rgba(0,0,0,0.85); backdrop-filter: blur(6px);
  text-align: center; padding: 16px;
}
.pane.video-blocked .driving-overlay { display: flex; }
.pane.video-blocked iframe { filter: blur(14px); }

/* ---- start/bookmark drawer ---- */
#drawer { position: fixed; inset: 0; z-index: 50; background: var(--bg); display: none; flex-direction: column; overflow: hidden; }
#drawer.open { display: flex; }
#drawer-header { display: flex; align-items: center; gap: 8px; padding: 10px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
#drawer-tabs { display: flex; gap: 6px; overflow-x: auto; }
#drawer-body { flex: 1; overflow-y: auto; padding: 12px; }
.tile-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 12px; }
.tile { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; aspect-ratio: 1.2; min-height: 90px; text-align: center; }
.tile .emoji { font-size: 28px; }
.tile.add-tile { border-style: dashed; opacity: 0.8; }

/* ---- settings ---- */
.settings-row { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.settings-row label { min-width: 200px; }
input[type="text"], input[type="url"], input[type="time"], input[type="number"] {
  background: #0e141b; color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 8px; font-size: var(--font);
}

#qr-box { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 16px; }
#qr-canvas { background: #fff; padding: 8px; border-radius: 8px; }

.hint { opacity: 0.65; font-size: 13px; }