/*
 * Campus Map – Oberfläche im Stil eines universitären Leitsystems.
 *
 * Alle Werte sind über Custom Properties auf .cm überschreibbar, damit sich die
 * Karte in ein bestehendes Sitepackage einpassen lässt, ohne diese Datei zu ändern.
 */

.cm {
  --cm-ink: #10171a;
  --cm-ink-soft: #4a565a;
  --cm-paper: #f2f4f2;
  --cm-surface: #ffffff;
  --cm-line: #c8d2ce;
  --cm-accent: #0e6b5b;
  --cm-accent-soft: #dceae5;
  --cm-on-accent: #ffffff;
  --cm-signal: #b45309;
  --cm-radius: 3px;
  --cm-gap: 0.75rem;
  --cm-height: 600px;
  --cm-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  font-family: var(--cm-font);
  color: var(--cm-ink);
  margin-block: 1.5rem;
}

.cm *,
.cm *::before,
.cm *::after {
  box-sizing: border-box;
}

.cm__title {
  font-size: clamp(1.125rem, 0.9rem + 1vw, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 var(--cm-gap);
}

/* --- Rahmen und Kartenfläche ------------------------------------------- */

.cm__frame {
  position: relative;
  height: var(--cm-height);
  max-height: 85svh;
  border: 1px solid var(--cm-line);
  border-radius: var(--cm-radius);
  background: var(--cm-paper);
  overflow: hidden;
  isolation: isolate;
}

/*
 * MapLibre setzt auf denselben Container .maplibregl-map mit position: relative.
 * Die Spezifität ist identisch, also entscheidet die Ladereihenfolge – deshalb
 * hier zwei Klassen und zusätzlich width/height, die unabhängig vom
 * position-Wert greifen. Ohne das kollabiert der Container auf 0 px Höhe und
 * die Karte bleibt unsichtbar, während die eigenen Bedienelemente weiter
 * angezeigt werden.
 */
.cm .cm__map {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.cm__map:focus-visible {
  outline: 3px solid var(--cm-signal);
  outline-offset: -3px;
}

.cm__status {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  z-index: 3;
  margin: 0;
  padding: 0.5rem 0.75rem;
  background: color-mix(in srgb, var(--cm-surface) 92%, transparent);
  border-top: 1px solid var(--cm-line);
  font-size: 0.8125rem;
  line-height: 1.35;
  color: var(--cm-ink-soft);
}

.cm__status[hidden] {
  display: none;
}

.cm__status--error {
  color: var(--cm-ink);
  background: #fdf3e7;
  border-top-color: var(--cm-signal);
}

/* Der Statusbereich soll Änderungen ansagen, aber nicht ständig sichtbar sein. */
.cm__status--quiet {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  border: 0;
}

/* --- Signature: Etagenumschalter als Aufzugstableau -------------------- */

.cm__levels {
  position: absolute;
  z-index: 4;
  top: 0.75rem;
  left: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 0;
  margin: 0;
  background: var(--cm-line);
  border: 1px solid var(--cm-line);
  border-radius: var(--cm-radius);
  box-shadow: 0 1px 2px rgb(16 23 26 / 0.14);
  overflow: hidden;
}

.cm__levels-label {
  padding: 0.375rem 0.5rem 0.25rem;
  background: var(--cm-surface);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cm-ink-soft);
}

.cm__level {
  min-width: 3.25rem;
  min-height: 2.5rem;
  padding: 0.5rem 0.625rem;
  border: 0;
  background: var(--cm-surface);
  color: var(--cm-ink);
  font: inherit;
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: background-color 120ms linear, color 120ms linear;
}

.cm__level:hover {
  background: var(--cm-accent-soft);
}

.cm__level[aria-pressed="true"] {
  background: var(--cm-accent);
  color: var(--cm-on-accent);
  font-weight: 700;
}

.cm__level:focus-visible {
  outline: 3px solid var(--cm-signal);
  outline-offset: -3px;
}

/* --- Listen-Panel (Tastatur- und Screenreader-Zugang zu den Objekten) -- */

.cm__list-toggle {
  position: absolute;
  z-index: 4;
  bottom: 0.75rem;
  left: 0.75rem;
  min-height: 2.5rem;
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--cm-line);
  border-radius: var(--cm-radius);
  background: var(--cm-surface);
  color: var(--cm-ink);
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 1px 2px rgb(16 23 26 / 0.14);
}

.cm__list-toggle:hover {
  background: var(--cm-accent-soft);
}

.cm__list-toggle:focus-visible {
  outline: 3px solid var(--cm-signal);
  outline-offset: 2px;
}

.cm__list {
  position: absolute;
  z-index: 5;
  top: 0.75rem;
  right: 0.75rem;
  bottom: 0.75rem;
  width: min(22rem, calc(100% - 6rem));
  display: flex;
  flex-direction: column;
  background: var(--cm-surface);
  border: 1px solid var(--cm-line);
  border-radius: var(--cm-radius);
  box-shadow: 0 2px 8px rgb(16 23 26 / 0.18);
  overflow: hidden;
}

.cm__list[hidden] {
  display: none;
}

.cm__list-heading {
  margin: 0;
  padding: 0.75rem 0.875rem;
  border-bottom: 1px solid var(--cm-line);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cm-ink-soft);
}

.cm__list-items {
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-y: auto;
}

.cm__list-items li + li {
  border-top: 1px solid var(--cm-line);
}

.cm__list-item {
  display: block;
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 0;
  background: none;
  font: inherit;
  font-size: 0.875rem;
  text-align: left;
  cursor: pointer;
}

.cm__list-item:hover {
  background: var(--cm-accent-soft);
}

.cm__list-item:focus-visible {
  outline: 3px solid var(--cm-signal);
  outline-offset: -3px;
}

.cm__list-meta {
  display: block;
  margin-top: 0.125rem;
  font-size: 0.75rem;
  color: var(--cm-ink-soft);
}

.cm__list-empty {
  margin: 0;
  padding: 0.875rem;
  font-size: 0.875rem;
  color: var(--cm-ink-soft);
}

/* --- Suche ------------------------------------------------------------- */

.cm__search {
  position: absolute;
  z-index: 6;
  top: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  width: min(26rem, calc(100% - 11rem));
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.cm__search-field {
  position: relative;
  display: flex;
}

.cm__search-input {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.5rem 2.5rem 0.5rem 0.875rem;
  border: 1px solid var(--cm-line);
  border-radius: var(--cm-radius);
  background: var(--cm-surface);
  color: var(--cm-ink);
  font: inherit;
  font-size: 0.9375rem;
  box-shadow: 0 1px 2px rgb(16 23 26 / 0.14);
}

.cm__search-input::-webkit-search-cancel-button {
  display: none;
}

.cm__search-input:focus-visible {
  outline: 3px solid var(--cm-signal);
  outline-offset: -1px;
}

.cm__search-clear {
  position: absolute;
  inset-block: 0;
  right: 0;
  width: 2.5rem;
  border: 0;
  background: none;
  color: var(--cm-ink-soft);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.cm__search-clear:focus-visible {
  outline: 3px solid var(--cm-signal);
  outline-offset: -3px;
}

.cm__results {
  max-height: 18rem;
  display: flex;
  flex-direction: column;
  background: var(--cm-surface);
  border: 1px solid var(--cm-line);
  border-radius: var(--cm-radius);
  box-shadow: 0 2px 8px rgb(16 23 26 / 0.18);
  overflow: hidden;
}

.cm__results[hidden] {
  display: none;
}

.cm__results-count {
  margin: 0;
  padding: 0.5rem 0.875rem;
  border-bottom: 1px solid var(--cm-line);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cm-ink-soft);
}

.cm__results-list {
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-y: auto;
}

.cm__results-list li + li {
  border-top: 1px solid var(--cm-line);
}

.cm__result {
  display: block;
  width: 100%;
  padding: 0.5rem 0.875rem;
  border: 0;
  background: none;
  color: var(--cm-ink);
  font: inherit;
  font-size: 0.875rem;
  text-align: left;
  cursor: pointer;
}

.cm__result:hover {
  background: var(--cm-accent-soft);
}

.cm__result:focus-visible {
  outline: 3px solid var(--cm-signal);
  outline-offset: -3px;
}

.cm__result-meta {
  display: block;
  margin-top: 0.125rem;
  font-size: 0.75rem;
  color: var(--cm-ink-soft);
}

/* --- Zahl auf einer Gruppe -------------------------------------------- */

.cm__cluster-count {
  /* Liegt über dem Gruppenkreis; Klicks gehen an den Kreis darunter. */
  pointer-events: none;
  font-family: var(--cm-font);
  font-size: 0.75rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--cm-on-accent);
  text-shadow: 0 1px 1px rgb(16 23 26 / 0.35);
  -webkit-user-select: none;
  user-select: none;
}

/* --- Popup ------------------------------------------------------------- */

.cm__popup {
  min-width: 12rem;
  font-family: var(--cm-font);
}

.cm__popup-kicker {
  display: block;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cm-accent);
}

.cm__popup-title {
  margin: 0.125rem 0 0.25rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.25;
}

.cm__popup-meta {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--cm-ink-soft);
}

.cm__popup-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--cm-accent);
}

.cm .maplibregl-popup-content {
  /* Höher als der Rahmen kann ein Popup nicht sinnvoll werden – der Rest wird
     scrollbar. Den Wert setzt das Skript aus der eingestellten Kartenhöhe. */
  max-height: var(--cm-popup-max-height, 22rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0.75rem 0.875rem;
  border: 1px solid var(--cm-line);
  border-radius: var(--cm-radius);
  box-shadow: 0 2px 8px rgb(16 23 26 / 0.18);
}

.cm .maplibregl-ctrl button:focus-visible {
  outline: 3px solid var(--cm-signal);
  outline-offset: -3px;
}

.cm__fallback {
  padding: 1rem;
  border: 1px dashed var(--cm-line);
  border-radius: var(--cm-radius);
  font-size: 0.875rem;
}

/* --- Popup-Ergänzungen und Liste unter der Karte ----------------------- */

.cm__popup-image,
.cm__points-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--cm-radius);
}

.cm__popup-image {
  margin-bottom: 0.5rem;
  max-height: 9rem;
  object-fit: cover;
}

.cm__popup-subtitle {
  margin: 0 0 0.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--cm-ink-soft);
}

.cm__popup-text {
  margin: 0.375rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--cm-ink);
}

.cm__popup-text p {
  margin: 0 0 0.375rem;
}

.cm__popup-text a {
  color: var(--cm-accent);
}

.cm__popup-more-heading {
  margin: 0.75rem 0 0.25rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--cm-line);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cm-ink-soft);
}

.cm__popup-more {
  margin: 0;
  padding: 0;
  list-style: none;
  max-height: 12rem;
  overflow-y: auto;
}

.cm__popup-more li + li {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--cm-line);
}

.cm__popup-more-title {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
}

/* --- Liste unter der Karte -------------------------------------------- */

.cm__points {
  margin-top: 1.5rem;
}

.cm__points-heading {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cm-ink-soft);
}

.cm__points-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--cm-line);
  border: 1px solid var(--cm-line);
  border-radius: var(--cm-radius);
  overflow: hidden;
}

.cm__points-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  padding: 0.875rem 1rem;
  background: var(--cm-surface);
}

.cm__points-item:target {
  background: var(--cm-accent-soft);
}

.cm__points-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
}

.cm__points-title {
  padding: 0;
  border: 0;
  background: none;
  color: var(--cm-accent);
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.cm__points-title:hover {
  color: var(--cm-ink);
}

.cm__points-title--plain {
  color: var(--cm-ink);
  cursor: default;
  text-decoration: none;
}

.cm__points-title:focus-visible {
  outline: 3px solid var(--cm-signal);
  outline-offset: 2px;
}

.cm__points-subtitle {
  font-size: 0.875rem;
  color: var(--cm-ink-soft);
}

.cm__points-image {
  max-width: 12rem;
}

.cm__points-text {
  font-size: 0.9375rem;
  line-height: 1.5;
}

.cm__points-text p {
  margin: 0 0 0.5rem;
}

.cm__points-text a {
  color: var(--cm-accent);
}

.cm__points-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  font-size: 0.8125rem;
}

.cm__points-tag {
  padding: 0.125rem 0.5rem;
  border: 1px solid var(--cm-line);
  border-radius: 1rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cm-ink-soft);
}

.cm__points-note {
  color: var(--cm-ink-soft);
  font-style: italic;
}

@media (min-width: 40rem) {
  .cm__points-item {
    grid-template-columns: 12rem 1fr;
    align-items: start;
  }

  .cm__points-head,
  .cm__points-meta {
    grid-column: 2;
  }

  .cm__points-text {
    grid-column: 2;
  }

  .cm__points-item:not(:has(.cm__points-image)) > * {
    grid-column: 1 / -1;
  }
}

/* --- Tabellarische Ausgabe -------------------------------------------- */

.cm__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  text-align: left;
}

.cm__table caption {
  text-align: left;
  padding-bottom: 0.5rem;
}

.cm__table th,
.cm__table td {
  padding: 0.75rem 0.75rem 0.75rem 0;
  border-bottom: 1px solid var(--cm-line);
  vertical-align: top;
}

.cm__table thead th {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cm-ink-soft);
  border-bottom-width: 2px;
}

.cm__table tbody th {
  font-weight: 600;
  width: 22%;
}

.cm__table td:last-child,
.cm__table th:last-child {
  padding-right: 0;
}

.cm__table a {
  color: var(--cm-accent);
}

.cm__table-image {
  display: block;
  width: 100%;
  max-width: 7rem;
  height: auto;
  margin-top: 0.5rem;
  border-radius: var(--cm-radius);
}

.cm__points--table {
  overflow-x: auto;
}

@media (max-width: 40rem) {
  .cm__table,
  .cm__table tbody,
  .cm__table tr,
  .cm__table th,
  .cm__table td {
    display: block;
  }

  .cm__table thead {
    display: none;
  }

  .cm__table tr {
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--cm-line);
  }

  .cm__table th,
  .cm__table td {
    width: auto;
    padding: 0.125rem 0;
    border: 0;
  }
}

/* --- Mobil: Tableau wird zur Leiste am unteren Rand ------------------- */

@media (max-width: 40rem) {
  .cm__frame {
    height: min(var(--cm-height), 70svh);
    min-height: 20rem;
  }

  .cm__levels {
    top: auto;
    left: 0.5rem;
    right: 0.5rem;
    bottom: 0.5rem;
    flex-direction: row;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .cm__levels-label {
    display: none;
  }

  .cm__level {
    flex: 0 0 auto;
    min-width: 3.5rem;
    min-height: 2.75rem;
  }

  .cm__search {
    top: 0.5rem;
    left: 0.5rem;
    right: 0.5rem;
    width: auto;
    transform: none;
  }

  .cm__list-toggle {
    bottom: auto;
    top: 0.5rem;
    left: 0.5rem;
  }

  /* Ist eine Suche vorhanden, belegt sie oben die volle Breite. */
  .cm__frame:has(.cm__search) .cm__list-toggle {
    top: 3.75rem;
  }

  .cm__frame:has(.cm__search) .cm__results {
    max-height: 14rem;
  }

  .cm__list {
    top: auto;
    left: 0.5rem;
    right: 0.5rem;
    bottom: 4rem;
    width: auto;
    max-height: 60%;
  }

  .cm__status {
    padding-bottom: 3.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cm__level,
  .cm__list-item {
    transition: none;
  }
}

@media (forced-colors: active) {
  .cm__level[aria-pressed="true"] {
    forced-color-adjust: none;
    background: Highlight;
    color: HighlightText;
  }
}