:root {
  --bg: #f4f7fa;
  --panel: #ffffff;
  --ink: #1f2d3d;
  --muted: #6b7c93;
  --line: #e3e9f0;
  --blue: #1a6dc4;
  --blue-d: #14559b;
  --teal: #16a394;
  --teal-d: #0e8275;
  --danger: #d4584b;
  --shadow: 0 2px 14px rgba(31, 45, 61, .08);
  --radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}
a { color: var(--blue); }
h1, h2, h3 { margin: 0 0 .4em; font-weight: 700; }
.wrap { max-width: 1000px; margin: 0 auto; padding: 24px 20px 64px; }
.topbar {
  background: linear-gradient(100deg, var(--blue), var(--teal));
  color: #fff; padding: 18px 20px; box-shadow: var(--shadow);
}
.topbar .wrap { padding: 0; max-width: 1000px; display: flex; align-items: center; justify-content: space-between; }
.topbar h1 { color: #fff; font-size: 20px; margin: 0; }
.topbar .sub { opacity: .9; font-size: 13px; }
.panel {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px; margin-bottom: 20px;
}
.panel h2 { font-size: 16px; color: var(--blue-d); }
label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 4px; font-weight: 600; }
input, select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 8px; font-size: 15px; font-family: inherit; background: #fff; color: var(--ink);
}
textarea { min-height: 70px; resize: vertical; }
button {
  cursor: pointer; border: none; border-radius: 8px; font-size: 14px; font-weight: 600;
  padding: 10px 16px; background: var(--blue); color: #fff; transition: background .15s;
}
button:hover { background: var(--blue-d); }
button.teal { background: var(--teal); } button.teal:hover { background: var(--teal-d); }
button.ghost { background: #eef3f8; color: var(--ink); } button.ghost:hover { background: #e1e9f2; }
button.danger { background: var(--danger); } button.danger:hover { background: #b8473b; }
button.sm { padding: 6px 10px; font-size: 12px; }
button:disabled { opacity: .5; cursor: not-allowed; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.row > * { flex: 1 1 auto; }
.pill { display: inline-block; font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 20px; text-transform: uppercase; letter-spacing: .4px; }
.pill.mc { background: #e4eefc; color: var(--blue-d); }
.pill.words { background: #e0f5f1; color: var(--teal-d); }
.pill.text { background: #f1ecfb; color: #6b4cc0; }
.pill.rating { background: #fdeede; color: #c08a2c; }
.muted { color: var(--muted); }
.q-item { border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-bottom: 12px; }
.q-item.live { border-color: var(--teal); box-shadow: 0 0 0 2px rgba(22,163,148,.18); }
.q-head { display: flex; justify-content: space-between; gap: 10px; align-items: flex-start; }
.linkbox { background: #f0f4f9; border: 1px dashed #c7d6e6; border-radius: 8px; padding: 10px 12px; font-family: ui-monospace, Menlo, monospace; font-size: 13px; word-break: break-all; display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.chiplist { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip { background: #eef3f8; border-radius: 20px; padding: 6px 12px; font-size: 13px; display: flex; gap: 8px; align-items: center; }
.chip button { background: none; color: var(--danger); padding: 0; font-size: 16px; line-height: 1; }
.hide { display: none !important; }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 10px 18px; border-radius: 8px; opacity: 0; transition: opacity .3s; z-index: 50; }
.toast.show { opacity: 1; }
.tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.tabs button { background: #eef3f8; color: var(--ink); }
.tabs button.active { background: var(--blue); color: #fff; }
.center-card { max-width: 460px; margin: 8vh auto; }