html, body { font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
code, pre, .font-mono, textarea.font-mono { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace; }

* { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

::-webkit-scrollbar          { width: 10px; height: 10px; }
::-webkit-scrollbar-track    { background: transparent; }
::-webkit-scrollbar-thumb    { background: rgba(148, 163, 184, 0.18); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, 0.32); }

#qs-sidebar { transition: width 180ms ease; }

.qs-tab {
  position: relative;
  padding: 14px 18px;
  font-size: 13px;
  font-weight: 500;
  color: rgb(148, 163, 184);
  border: none;
  background: transparent;
  cursor: pointer;
  transition: color 120ms ease;
}
.qs-tab:hover { color: rgb(226, 232, 240); }
.qs-tab[data-active="true"] { color: rgb(226, 232, 240); }
.qs-tab[data-active="true"]::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px; bottom: 0;
  height: 2px;
  background: rgb(59, 130, 246);
  border-radius: 2px 2px 0 0;
}

.qs-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: 8px;
  color: rgb(148, 163, 184);
  transition: background 120ms ease, color 120ms ease;
}
.qs-icon-btn:hover { background: rgba(255, 255, 255, 0.05); color: rgb(226, 232, 240); }

.qs-rail-btn {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: 8px;
  color: rgb(148, 163, 184);
  transition: background 120ms ease, color 120ms ease;
}
.qs-rail-btn:hover { background: rgba(255, 255, 255, 0.05); color: rgb(226, 232, 240); }

.qs-avatar {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #6366f1);
  color: white;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
}
.qs-avatar:hover { transform: scale(1.05); box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.35); }

[data-collapsed="true"] .qs-when-expanded { display: none !important; }
[data-collapsed="false"] .qs-when-collapsed { display: none !important; }

.qs-segmented {
  display: flex; flex-wrap: wrap; gap: 4px;
  padding: 4px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgb(51, 65, 85);
  border-radius: 8px;
}
.qs-seg-btn {
  flex: 1 1 0;
  min-width: 0;
  padding: 6px 12px;
  font-size: 13px;
  text-align: center;
  color: rgb(148, 163, 184);
  border-radius: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.qs-seg-btn:hover { background: rgba(255, 255, 255, 0.05); color: rgb(226, 232, 240); }
.qs-seg-btn[data-active="true"] {
  background: rgb(37, 99, 235);
  color: white;
}
.qs-seg-btn[data-active="true"]:hover { background: rgb(29, 78, 216); color: white; }

.qs-copy-mini {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px;
  border-radius: 4px;
  color: rgb(100, 116, 139);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
  flex-shrink: 0;
}
.qs-copy-mini:hover { background: rgba(255, 255, 255, 0.06); color: rgb(226, 232, 240); }
.qs-copy-mini[data-copied="true"] { color: rgb(52, 211, 153); }