:root {
  --bg: #0b0d10;
  --panel: #14181d;
  --panel-2: #1c2128;
  --line: #2a313a;
  --text: #e8ecf1;
  --muted: #8b95a3;
  --accent: #3e8bff;
  --ok: #2ecc71;
  --warn: #f5a623;
  --bad: #ff5a5f;
  --radius: 14px;
  --bar-h: 44px;
  --pane-bar-h: 44px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
button, select { font: inherit; color: inherit; }
[hidden] { display: none !important; }

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

#topbar {
  height: var(--bar-h);
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; min-width: 0; }
#status { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); flex: none; }
.dot.ok { background: var(--ok); }
.dot.warn { background: var(--warn); }
.dot.bad { background: var(--bad); }
.top-actions { display: flex; gap: 8px; }
.chip {
  height: 34px;
  padding: 0 14px;
  border-radius: 17px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  cursor: pointer;
}
.chip:active { background: var(--line); }

#main { flex: 1; position: relative; min-height: 0; }
.screen { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 32px;
  max-width: 560px;
  width: calc(100% - 32px);
}
.card.center { text-align: center; }
.card h1 { margin: 0 0 8px; font-size: 26px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.error { color: var(--bad); min-height: 1.4em; margin: 10px 0 0; text-align: center; }

.code-display {
  font: 600 44px/1 ui-monospace, "SF Mono", Menlo, monospace;
  letter-spacing: 12px;
  text-align: center;
  margin: 18px 0;
}
.keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.keypad button {
  height: 64px;
  font-size: 26px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel-2);
}
.keypad button:active { background: var(--accent); }

.spinner {
  width: 42px; height: 42px; margin: 0 auto 16px;
  border: 4px solid var(--line); border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn {
  display: inline-block;
  margin-top: 16px;
  height: 48px;
  padding: 0 22px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  cursor: pointer;
}
.btn.primary, button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }

/* panes */
.panes { align-items: stretch; justify-content: stretch; gap: 4px; background: #000; }
.pane { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; background: var(--bg); }
.pane-bar {
  height: var(--pane-bar-h);
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 6px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.pane-title { flex: 1; min-width: 0; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pane-stats { font: 12px ui-monospace, Menlo, monospace; color: var(--muted); white-space: nowrap; }
.pb {
  height: 34px;
  min-width: 44px;
  padding: 0 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  cursor: pointer;
}
.pb:active { background: var(--accent); }
.pane-body { flex: 1; min-height: 0; position: relative; }

.launcher { position: absolute; inset: 0; overflow-y: auto; padding: 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(124px, 1fr)); gap: 14px; }
.app-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 8px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  cursor: pointer;
  text-align: center;
}
.app-tile:active { background: var(--panel-2); border-color: var(--accent); }
.app-tile img { width: 72px; height: 72px; border-radius: 16px; }
.app-tile span { font-size: 15px; line-height: 1.2; max-width: 100%; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.launcher-empty { color: var(--muted); text-align: center; margin-top: 40px; }

.stage { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: #000; }
.stage canvas { display: block; touch-action: none; max-width: 100%; max-height: 100%; }
.stage-msg {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  background: rgba(20, 24, 29, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 24px;
  text-align: center;
  max-width: 80%;
}

/* immersive: hide bars */
body.immersive #topbar, body.immersive .pane-bar { display: none; }
.show-bars {
  position: fixed;
  top: 6px;
  right: 6px;
  width: 44px;
  height: 30px;
  border-radius: 15px;
  border: 1px solid var(--line);
  background: rgba(20, 24, 29, 0.6);
  z-index: 5;
}

dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  width: min(520px, calc(100% - 32px));
  padding: 0;
}
dialog::backdrop { background: rgba(0, 0, 0, 0.6); }
.settings { padding: 22px 26px; display: flex; flex-direction: column; gap: 14px; }
.settings h2 { margin: 0; }
.settings label { display: flex; flex-direction: column; gap: 6px; }
.settings label.row { flex-direction: row; align-items: center; gap: 10px; }
.settings select { height: 44px; border-radius: 10px; border: 1px solid var(--line); background: var(--panel-2); padding: 0 10px; }
.settings input[type=checkbox] { width: 22px; height: 22px; }
.settings-actions { display: flex; justify-content: space-between; gap: 10px; }
.settings-actions button { height: 44px; padding: 0 18px; border-radius: 22px; border: 1px solid var(--line); background: var(--panel-2); }
button.danger { color: var(--bad); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 10px 20px;
  max-width: calc(100% - 32px);
  z-index: 10;
}