:root {
  --bg: #14161c;
  --panel: #1d212b;
  --panel2: #252b38;
  --text: #e8eaf0;
  --muted: #9aa3b5;
  --accent: #4f8cff;
  --danger: #ff5c6c;
  --warn: #ffb84f;
  --radius: 10px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-tap-highlight-color: transparent;
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--panel);
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0,0,0,.4);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.brand img { width: 28px; height: 28px; }
.live-controls { display: flex; align-items: center; gap: 8px; flex: 1; justify-content: center; min-width: 260px; }
.preview { display: flex; flex-direction: column; gap: 3px; width: min(420px, 42vw); }
.preview-box {
  font-size: 13px;
  background: var(--panel2);
  border-radius: 6px;
  padding: 6px 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.preview-box.now { font-weight: 600; border-left: 3px solid var(--accent); }
.preview-box.next { color: var(--muted); font-size: 12px; }
.quick-actions { display: flex; gap: 8px; }

button {
  font: inherit;
  background: var(--panel2);
  color: var(--text);
  border: 1px solid #3a4356;
  border-radius: var(--radius);
  padding: 10px 16px;
  cursor: pointer;
  transition: background .15s;
}
button:hover { background: #313a4c; }
button:active { transform: scale(.97); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.danger { color: var(--danger); border-color: #5a3a44; }
button.warn { color: var(--warn); border-color: #5a4b34; }
.ctrl { padding: 10px 14px; font-size: 15px; }

input, select, textarea {
  font: inherit;
  background: var(--panel2);
  border: 1px solid #3a4356;
  color: var(--text);
  border-radius: 8px;
  padding: 9px 12px;
  width: 100%;
}
textarea { resize: vertical; }
label { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* Tabs */
.tabs { display: flex; background: var(--panel); overflow-x: auto; }
.tab {
  border: none;
  border-radius: 0;
  background: transparent;
  padding: 12px 20px;
  color: var(--muted);
  font-weight: 600;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

main { flex: 1; padding: 14px; max-width: 900px; width: 100%; margin: 0 auto; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.card {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}
.card h2 { font-size: 17px; margin-bottom: 12px; }
.row { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; margin-bottom: 10px; }
.row > label { flex: 1; min-width: 130px; }
.row > button { flex: 0 0 auto; }

.preview-text {
  background: var(--panel2);
  border-radius: 8px;
  padding: 12px;
  margin: 10px 0;
  max-height: 220px;
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  color: var(--muted);
}

.item-list { list-style: none; }
.item-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--panel2);
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 6px;
}
.item-list .item-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item-list .item-meta { color: var(--muted); font-size: 12px; }
.item-list button { padding: 6px 10px; font-size: 13px; }

@media (max-width: 640px) {
  .preview { width: 100%; order: 3; }
  .live-controls { flex-wrap: wrap; }
}

.hint { font-size: 13px; color: var(--muted); line-height: 1.6; margin: 6px 0; }

/* Light operator mode */
body.light { --bg: #f2f4f8; --panel: #ffffff; --panel2: #e9edf4; --text: #1c2230; --muted: #5b6474; --accent: #2f6bff; }
body.light .topbar, body.light .tabs { box-shadow: 0 2px 8px rgba(20,30,60,.08); }
body.light button { border-color: #c9d2e0; }
body.light button:hover { background: #dde4ef; }
body.light input, body.light select, body.light textarea { border-color: #c9d2e0; }
body.light .preview-box { background: #eef1f7; }

button.ctrl.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.about-link {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  border: 1px solid #3a4356;
  border-radius: var(--radius);
  padding: 10px 14px;
}
body.light .about-link { border-color: #c9d2e0; }
.about-link:hover { color: var(--text); }

/* Quick Go */
.quickgo { position: relative; flex: 1.2; min-width: 240px; }
.quickgo input { padding: 11px 14px; border-radius: 10px; font-size: 14px; }
.quickgo-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0; right: 0;
  background: var(--panel);
  border: 1px solid #3a4356;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
  z-index: 50;
  overflow: hidden;
}
body.light .quickgo-results { border-color: #c9d2e0; box-shadow: 0 10px 30px rgba(20,30,60,.15); }
.quickgo-item {
  display: flex; gap: 10px; align-items: center;
  padding: 9px 14px;
  cursor: pointer;
  border-bottom: 1px solid rgba(128,140,170,.15);
  line-height: 1.35;
  font-size: 14px;
}
.quickgo-item:hover { background: var(--panel2); }
.quickgo-icon { font-size: 16px; }

/* Account tab */
#authSignedIn p { margin-bottom: 10px; }