:root {
  --bg: #f4f5f7; --card: #ffffff; --ink: #1c2128; --muted: #6b7280;
  --line: #e2e5ea; --primary: #1f7a4d; --primary-ink: #fff;
  --warn-bg: #fff4e5; --warn-ink: #8a5300; --err-bg: #fdecea; --err-ink: #8a1c12;
  --ok-bg: #e7f6ec; --ok-ink: #1f7a4d; --pill: #eef1f4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c; --card: #1c2128; --ink: #e6e9ee; --muted: #9aa4b2;
    --line: #2b323c; --primary: #2ea16a; --pill: #2a313b;
    --warn-bg: #3a2a10; --warn-ink: #f0c073; --err-bg: #3a1714; --err-ink: #f2a59b;
    --ok-bg: #123024; --ok-ink: #7fd6a3;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
.topbar { display: flex; align-items: center; justify-content: space-between;
  padding: .75rem 1rem; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; }
.nav-right { margin: 0; }
.wrap { max-width: 900px; margin: 0 auto; padding: 1rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.1rem 1.25rem; margin-bottom: 1rem; }
.card.narrow { max-width: 400px; margin: 3rem auto; }
h1 { font-size: 1.3rem; margin: 0 0 .8rem; }
h2 { font-size: 1.1rem; margin: 0 0 .8rem; }
label { display: block; font-weight: 600; margin: .6rem 0 .2rem; }
input, select, textarea { width: 100%; padding: .5rem .6rem; border: 1px solid var(--line);
  border-radius: 8px; background: var(--bg); color: var(--ink); font: inherit; }
textarea { font-family: ui-monospace, Menlo, monospace; }
.btn { display: inline-block; padding: .55rem 1rem; border: 1px solid var(--line);
  border-radius: 8px; background: var(--pill); color: var(--ink); font: inherit;
  cursor: pointer; margin-top: .8rem; }
.btn.primary { background: var(--primary); color: var(--primary-ink); border-color: transparent; }
.btn.ghost { background: transparent; margin: 0; }
.controls { display: flex; gap: .6rem; }
.controls form { margin: 0; }
.statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .6rem; }
.statgrid .k { display: block; color: var(--muted); font-size: .8rem; }
.statgrid .v { font-weight: 600; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: .4rem 1rem; }
.pill { background: var(--pill); border-radius: 999px; padding: .1rem .6rem; font-size: .85rem; }
.pill.warn { background: var(--warn-bg); color: var(--warn-ink); }
.alert { padding: .6rem .8rem; border-radius: 8px; }
.alert.ok { background: var(--ok-bg); color: var(--ok-ink); }
.alert.error { background: var(--err-bg); color: var(--err-ink); }
.otp { border-color: var(--warn-ink); }
.otp.is-hidden { display: none; }
.muted { color: var(--muted); }
.small { font-size: .82rem; }
.days, .toggles { border: 1px solid var(--line); border-radius: 8px; padding: .5rem .8rem;
  margin-top: .8rem; display: flex; flex-wrap: wrap; gap: .8rem; }
.days legend { padding: 0 .3rem; color: var(--muted); }
.chk { display: inline-flex; align-items: center; gap: .3rem; font-weight: 500; margin: 0; }
.chk input { width: auto; }
.events { list-style: none; padding: 0; margin: 0; font-family: ui-monospace, Menlo, monospace;
  font-size: .82rem; max-height: 320px; overflow: auto; }
.events li { padding: .25rem 0; border-bottom: 1px solid var(--line); }
.events time { color: var(--muted); }
.events .cat { color: var(--primary); }
.events li.lvl-warning { color: var(--warn-ink); }
.events li.lvl-error { color: var(--err-ink); }

/* ── Ticket 003: booking-settings redesign ─────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }

fieldset.sect { border: 1px solid var(--line); border-radius: 10px;
  padding: .8rem 1rem 1rem; margin: 0 0 1rem; }
fieldset.sect > legend { font-weight: 700; padding: 0 .4rem; }
.sub { font-weight: 600; display: block; }
.field-error { color: var(--err-ink); background: var(--err-bg);
  border-radius: 6px; padding: .3rem .5rem; margin: .3rem 0; font-size: .85rem; }
.timewin { border: 1px dashed var(--line); border-radius: 8px; padding: .6rem .8rem; }

/* Course organizer */
.courses { list-style: none; margin: .4rem 0 0; padding: 0; display: grid; gap: .6rem; }
.course { border: 1px solid var(--line); border-radius: 10px; padding: .6rem .7rem;
  background: var(--bg); }
.course.is-off { opacity: .72; border-style: dashed; }
.course-head { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.prio { min-width: 1.9rem; height: 1.9rem; display: inline-flex; align-items: center;
  justify-content: center; border-radius: 50%; background: var(--primary);
  color: #fff; font-weight: 700; }
.course.is-off .prio { background: var(--muted); }
.course-enable { font-size: 1.05rem; font-weight: 600; gap: .4rem; }
.course-name { font-weight: 700; }
.state-tag { margin-left: auto; font-size: .78rem; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; padding: .05rem .5rem; }
.course-body { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap;
  margin-top: .5rem; }
.daylabel { color: var(--muted); font-size: .85rem; }
.reorder { margin-left: auto; display: inline-flex; gap: .3rem; }
.btn.tiny { margin: 0; padding: .5rem .7rem; min-width: 2.6rem; min-height: 2.6rem;
  line-height: 1; font-size: 1rem; }
.btn.tiny[disabled] { opacity: .4; cursor: not-allowed; }

/* Booking mode */
fieldset.mode .mode-opt { display: grid; grid-template-columns: auto 1fr;
  align-items: center; gap: .2rem .6rem; border: 2px solid var(--line);
  border-radius: 10px; padding: .6rem .8rem; margin-top: .5rem; cursor: pointer; }
fieldset.mode .mode-opt input { grid-row: span 2; width: auto; }
.mode-badge { font-weight: 700; }
.mode-desc { grid-column: 2; color: var(--muted); font-size: .85rem; }
.mode-dry:has(input:checked) { border-color: var(--ok-ink); background: var(--ok-bg); }
.mode-live:has(input:checked) { border-color: var(--warn-ink); background: var(--warn-bg); }
.mode-live .mode-badge { color: var(--warn-ink); }
.confirm-live { margin-top: .8rem; }
.confirm-live ul { margin: .4rem 0; }

details.advanced { border: 1px solid var(--line); border-radius: 10px;
  padding: .3rem .8rem; margin-bottom: 1rem; }
details.advanced > summary { cursor: pointer; font-weight: 700; padding: .5rem 0; }

@media (max-width: 480px) {
  .wrap { padding: .6rem; }
  .course-head, .course-body { gap: .5rem; }
  .state-tag { margin-left: 0; }
  .reorder { margin-left: 0; }
  fieldset.mode .mode-opt { grid-template-columns: auto 1fr; }
}