:root {
  --bg: #f6f7f9;
  --fg: #1c1f23;
  --muted: #5c6570;
  --card: #ffffff;
  --border: #d9dde2;
  --accent: #2f6fdd;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181c;
    --fg: #e6e8eb;
    --muted: #9aa4b0;
    --card: #1f2228;
    --border: #333941;
    --accent: #6ba1ff;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 1.5rem 1rem 3rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
}

.head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.subscribe {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  color: var(--muted);
}

.subscribe input {
  /* Auf schmalen Schirmen darf das Feld schrumpfen, statt die Zeile
     ueber den Rand zu schieben. */
  flex: 1 1 auto;
  min-width: 0;
  width: 24rem;
  max-width: 100%;
  padding: .4rem .6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--fg);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .8125rem;
}

button {
  padding: .4rem .8rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--fg);
  font: inherit;
  font-size: .875rem;
  cursor: pointer;
}

button:hover { border-color: var(--accent); color: var(--accent); }

#calendar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
}

.error {
  margin-top: 1rem;
  padding: .75rem 1rem;
  border-radius: 6px;
  background: #fdecec;
  color: #8c1c1c;
}

@media (prefers-color-scheme: dark) {
  .error { background: #3a1f1f; color: #f3b5b5; }
}

/* --- Detail-Dialog --- */

dialog {
  max-width: min(32rem, 92vw);
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  color: var(--fg);
}

dialog::backdrop { background: rgb(0 0 0 / .45); }

dialog h2 { margin: 0 0 .5rem; font-size: 1.15rem; }
dialog p { margin: 0 0 .75rem; white-space: pre-wrap; overflow-wrap: anywhere; }
dialog .meta { color: var(--muted); font-size: .9rem; }

/* --- Startseite --- */

.cal-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 40rem;
}

.cal-list li {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .8rem 1rem;
  margin-bottom: .5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.cal-name {
  color: inherit;
  text-decoration: none;
  font-weight: 500;
  /* Lange Titel duerfen umbrechen statt die Zeile zu sprengen. */
  min-width: 0;
  overflow-wrap: anywhere;
}

.cal-name:hover { color: var(--accent); }

.ics-link {
  margin-left: auto;
  flex: 0 0 auto;
  padding: .15rem .45rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--muted);
  text-decoration: none;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .75rem;
}

.ics-link:hover { border-color: var(--accent); color: var(--accent); }

/* --- FullCalendar an das Farbschema anpassen --- */

.fc {
  --fc-border-color: var(--border);
  --fc-page-bg-color: var(--card);
  --fc-neutral-bg-color: var(--bg);
  --fc-today-bg-color: color-mix(in srgb, var(--accent) 12%, transparent);
  --fc-event-bg-color: var(--accent);
  --fc-event-border-color: var(--accent);
  --fc-list-event-hover-bg-color: var(--bg);
}

.fc .fc-toolbar-title { font-size: 1.1rem; }
.fc .fc-event { cursor: pointer; }

/* --- Schmale Schirme --- */

@media (max-width: 40rem) {
  body { padding: 1rem .75rem 2rem; }

  h1 { font-size: 1.25rem; }

  /* Titel und Abo-Zeile untereinander, Abo-Zeile ueber die volle Breite. */
  .head { gap: .75rem; margin-bottom: 1rem; }
  .subscribe { width: 100%; }
  .subscribe label { flex: 0 0 auto; }

  #calendar { padding: .5rem; border-radius: 8px; }
  .cal-list li { padding: .7rem .85rem; }

  /* Die drei Toolbar-Gruppen von FullCalendar nebeneinander sprengen die
     Breite - deshalb untereinander mit dem Titel zuerst. */
  .fc .fc-header-toolbar.fc-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: .5rem;
  }

  .fc .fc-toolbar-chunk {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: .25rem;
  }

  .fc .fc-toolbar-chunk:nth-child(2) { order: -1; }
  .fc .fc-toolbar-title { font-size: 1rem; }

  .fc .fc-button {
    padding: .3rem .55rem;
    font-size: .8125rem;
  }

  /* Sonst wird die Monatsansicht so hoch, dass sie unbedienbar wird. */
  .fc .fc-daygrid-day-frame { min-height: 3.5rem; }

  dialog { padding: 1.25rem; }
}