:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #d1d5db;
  --primary: #0f6cbd;
  --primary-hover: #0c5a9e;
  --ok: #107c10;
  --warn: #9a6700;
  --err: #c50f1f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 20px; background: var(--primary); color: #fff;
}
.topbar h1 { font-size: 1.2rem; margin: 0; font-weight: 600; }
.userbox { font-size: .9rem; display: flex; gap: 10px; align-items: center; }
.userbox button { background: transparent; color: #fff; border: 1px solid #fff8; padding: 4px 10px; border-radius: 4px; cursor: pointer; }
main { max-width: 720px; margin: 24px auto; padding: 0 16px; }
.card { background: var(--card); border-radius: 8px; padding: 24px; box-shadow: 0 1px 3px #0002; }
.hidden { display: none !important; }
.field { margin-bottom: 18px; flex: 1; position: relative; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row .field { min-width: 140px; }
label { display: block; font-weight: 600; margin-bottom: 6px; font-size: .95rem; }
.radios label { display: inline-flex; gap: 6px; align-items: center; font-weight: 400; margin-right: 24px; }
input[type=text], input[type=date], input[type=time], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 4px;
  font: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
small { color: var(--muted); display: block; margin-top: 4px; }
.readonly { padding: 8px 10px; background: #f3f4f6; border-radius: 4px; }
button.primary {
  background: var(--primary); color: #fff; border: 0; padding: 10px 20px;
  border-radius: 4px; font: inherit; font-weight: 600; cursor: pointer;
}
button.primary:hover { background: var(--primary-hover); }
button.primary:disabled { opacity: .6; cursor: wait; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; background: #e8f1fb;
  border: 1px solid #b4d3f2; border-radius: 14px; padding: 3px 6px 3px 10px; font-size: .88rem;
}
.chip.ext { background: #fff4e5; border-color: #f2cf9b; }
.chip button { border: 0; background: transparent; cursor: pointer; font-size: 1rem; line-height: 1; color: var(--muted); }
.autocomplete { position: relative; }
.suggestions {
  position: absolute; z-index: 10; left: 0; right: 0; top: 100%; margin: 2px 0 0; padding: 0;
  list-style: none; background: #fff; border: 1px solid var(--border); border-radius: 4px;
  box-shadow: 0 4px 12px #0002; max-height: 260px; overflow-y: auto;
}
.suggestions li { padding: 8px 10px; cursor: pointer; }
.suggestions li:hover, .suggestions li.active { background: #e8f1fb; }
.suggestions li span { color: var(--muted); font-size: .85rem; display: block; }
.avail.free { color: var(--ok); }
.avail.busy { color: var(--err); font-weight: 600; }
.msg { padding: 10px 12px; border-radius: 4px; margin-bottom: 14px; }
.msg.error { background: #fde7e9; color: var(--err); }
.msg.ok { background: #dff6dd; color: var(--ok); }
.msg.warn { background: #fff4ce; color: var(--warn); }
#resultContent ul { padding-left: 20px; }
#resultContent a { color: var(--primary); }