:root {
  --navy: #1F497D;
  --gray: #738080;
  --blue: #004080;
  --bg: #f4f6f8;
  --card: #ffffff;
  --border: #d9dee3;
  --text: #22303c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Calibri, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.45;
}
.topbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 28px;
  background: var(--card);
  border-bottom: 3px solid var(--navy);
}
.topbar-logo { width: 56px; height: 56px; }
.topbar h1 { margin: 0; font-size: 22px; color: var(--navy); }
.subtitle { margin: 2px 0 0; color: var(--gray); font-size: 14px; }
.who { margin-left: auto; text-align: right; color: var(--gray); font-size: 14px; }
.who strong { display: block; color: var(--text); }

main { max-width: 860px; margin: 24px auto; padding: 0 16px; display: grid; gap: 18px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px 24px;
}
.card h2 { margin: 0 0 8px; font-size: 18px; color: var(--navy); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card.error { border-color: #d33; }
.card.error pre { white-space: pre-wrap; font-size: 13px; color: #a00; }
.muted { color: var(--gray); }
.hint { color: var(--gray); font-size: 13px; margin: 10px 0 0; }

.btn {
  font: inherit;
  padding: 9px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  cursor: pointer;
}
.btn:hover { border-color: var(--navy); }
.btn.primary { background: var(--navy); border-color: var(--navy); color: #fff; }
.btn.primary:hover { background: #163a66; }
.btn[disabled] { opacity: .6; cursor: default; }

.switch { display: flex; align-items: center; gap: 12px; margin: 14px 0 18px; cursor: pointer; user-select: none; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.slider {
  width: 44px; height: 24px; border-radius: 12px; background: #c9d1d9; position: relative; transition: background .15s;
}
.slider::after {
  content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: left .15s;
}
.switch input:checked + .slider { background: var(--navy); }
.switch input:checked + .slider::after { left: 23px; }
.switch input:focus-visible + .slider { outline: 2px solid var(--blue); outline-offset: 2px; }
.switch-label { font-weight: 600; }

fieldset { border: 0; padding: 0; margin: 0; }
fieldset[disabled] { opacity: .5; }
.field { margin-bottom: 14px; }
.field-label { display: block; font-weight: 600; margin-bottom: 6px; }
.row { display: flex; gap: 18px; flex-wrap: wrap; }
.row label { display: grid; gap: 6px; font-weight: 600; }
select { font: inherit; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--border); min-width: 140px; background: #fff; }

.days { display: flex; gap: 8px; flex-wrap: wrap; }
.day {
  min-width: 52px; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--border); background: #fff; font: inherit; cursor: pointer;
}
.day[aria-pressed="true"] { background: var(--navy); border-color: var(--navy); color: #fff; }

.actions { display: flex; align-items: center; gap: 14px; margin-top: 16px; }
.status { font-size: 14px; color: var(--gray); }
.status.ok { color: #1a7f37; }
.status.err { color: #b00020; }

.preview {
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 18px;
  background: #fff;
  overflow-x: auto;
}
footer { text-align: center; padding: 24px; font-size: 13px; }