/* Rügen Highlights
   Nur Systemschriften und keine externen Ressourcen: beim Aufruf gehen
   keine Daten an Dritte (außer an den Hoster). */

:root {
  --tiefsee: #072b3d;
  --ostsee: #0a3a52;
  --ostsee-hell: #1b7c94;
  --flachwasser: #7fd3dc;
  --gischt: #eef7f8;
  --kreide: #f7f6f1;
  --sand: #e3dcc4;
  --text: #17262e;
  --text-leise: #50626b;

  --natur: #3f8f5a;
  --kultur: #e0a12b;   /* Bernstein */
  --baeder: #36b6c2;

  --sans: "Avenir Next", "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 14px;
  --mass: 72rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--kreide);
}

a { color: var(--ostsee-hell); text-underline-offset: .18em; }
a:hover { color: var(--ostsee); }
:focus-visible { outline: 3px solid var(--kultur); outline-offset: 3px; border-radius: 4px; }

.skip { position: absolute; left: -999px; top: .5rem; z-index: 10; background: var(--text); color: #fff; padding: .5rem .8rem; }
.skip:focus { left: .5rem; }

.kat-natur  { --kat: var(--natur); }
.kat-kultur { --kat: var(--kultur); }
.kat-baeder { --kat: var(--baeder); }
.farbpunkt { display: inline-block; width: .7em; height: .7em; border-radius: 50%; background: var(--kat); margin-right: .45em; vertical-align: .02em; }

/* ---------- Hero: Ostsee ---------- */

.hero {
  position: relative;
  overflow: hidden;
  min-height: min(92vh, 52rem);
  display: flex;
  align-items: center;
  color: #fff;
  background:
    radial-gradient(120% 90% at 85% 10%, #1f8aa1 0%, rgba(31,138,161,0) 55%),
    linear-gradient(180deg, var(--ostsee) 0%, var(--tiefsee) 100%);
  padding: 4rem 1rem 9rem;
}

.hero-inhalt {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--mass);
  margin: 0 auto;
}

.marke { font-size: .95rem; letter-spacing: .02em; color: rgba(255,255,255,.75); margin: 0 0 1.5rem; }

.hero h1 {
  font-size: clamp(4.5rem, 19vw, 12rem);
  font-weight: 800;
  line-height: .9;
  letter-spacing: -.045em;
  margin: 0 0 1.5rem;
  padding-bottom: .12em;
  background: linear-gradient(180deg, #ffffff 30%, #bfe9ee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-text {
  font-size: clamp(1.15rem, 2.6vw, 1.45rem);
  line-height: 1.45;
  max-width: 32ch;
  margin: 0 0 2rem;
  color: rgba(255,255,255,.92);
}

.knopf {
  display: inline-block;
  padding: .85rem 1.4rem;
  border-radius: 999px;
  background: #fff;
  color: var(--ostsee);
  font-weight: 650;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.knopf:hover { background: var(--gischt); color: var(--tiefsee); }

.hero-insel {
  position: absolute;
  z-index: 1;
  right: -3%;
  top: 50%;
  width: min(56vw, 50rem);
  transform: translateY(-50%);
  opacity: .9;
}
.hero-insel path {
  fill: rgba(255,255,255,.07);
  stroke: rgba(191,233,238,.85);
  stroke-width: 2.2;
  stroke-linejoin: round;
}
@media (max-width: 44rem) {
  .hero { align-items: flex-end; }
  .hero-insel { width: 115vw; right: -30%; top: 30%; opacity: .45; }
}

/* Wellen */
.wellen { position: absolute; left: 0; bottom: -1px; width: 100%; height: 9rem; z-index: 2; }
.w { will-change: transform; }
.w1 { fill: rgba(127,211,220,.18); animation: welle 22s linear infinite; }
.w2 { fill: rgba(127,211,220,.28); animation: welle 15s linear infinite reverse; }
.w3 { fill: var(--kreide); animation: welle 28s linear infinite; }
@keyframes welle { from { transform: translateX(0); } to { transform: translateX(-720px); } }
@media (prefers-reduced-motion: reduce) { .w { animation: none; } }

/* ---------- Abschnitte ---------- */

main { padding: 0 1rem; }

.kopf { max-width: var(--mass); margin: 0 auto 1.5rem; }
.kopf h2 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.05;
  margin: 0 0 .6rem;
  color: var(--ostsee);
}
.kopf p { margin: 0 0 1.2rem; color: var(--text-leise); max-width: 60ch; }

.kartenbereich { padding: 2rem 0 3rem; }

.filter { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip {
  font: inherit;
  font-size: .95rem;
  padding: .5rem .95rem;
  border-radius: 999px;
  border: 1.5px solid #c9d6da;
  background: #fff;
  color: var(--text);
  cursor: pointer;
}
.chip:hover { border-color: var(--ostsee-hell); }
.chip.aktiv { background: var(--ostsee); border-color: var(--ostsee); color: #fff; }

.karte-layout {
  max-width: var(--mass);
  margin: 0 auto;
  display: grid;
  gap: 1rem;
}
@media (min-width: 60rem) {
  .karte-layout { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); align-items: start; }
  .panel { position: sticky; top: 1rem; max-height: calc(100vh - 2rem); overflow: auto; }
}

.karte-rahmen {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ostsee);
  box-shadow: 0 24px 60px -24px rgba(7,43,61,.55);
}
.karte { display: block; width: 100%; height: auto; }

.tiefe path { fill: none; stroke: rgba(255,255,255,.12); stroke-width: 1.5; stroke-dasharray: 2 7; }
.festland { fill: #d7d0b7; opacity: .55; }
.insel { fill: url(#land); stroke: #ffffff; stroke-width: 2.2; stroke-linejoin: round; }
.geo { fill: rgba(255,255,255,.75); font: 600 22px var(--sans); letter-spacing: .04em; }
.geo.meer { font-size: 30px; font-style: italic; fill: rgba(255,255,255,.35); letter-spacing: .3em; }
.geo.klein { font-size: 17px; fill: rgba(255,255,255,.7); }

.bahn {
  fill: none;
  stroke: var(--baeder);
  stroke-width: 5;
  stroke-dasharray: 2 9;
  stroke-linecap: round;
  cursor: pointer;
}
.bahn:hover, .bahn.gewaehlt { stroke: #0d7f8a; stroke-width: 6; }

.marker { cursor: pointer; outline: none; }
.marker .punkt { fill: var(--kat); stroke: #fff; stroke-width: 3; transition: transform .2s ease; }
.marker .puls { fill: var(--kat); opacity: 0; }
.marker text {
  font: 650 19px var(--sans);
  fill: #1b2a31;
  paint-order: stroke;
  stroke: rgba(247,246,241,.92);
  stroke-width: 5px;
  stroke-linejoin: round;
  pointer-events: none;
}
.marker:hover .punkt, .marker:focus-visible .punkt, .marker.gewaehlt .punkt { transform: scale(1.35); }
.marker:focus-visible .punkt { stroke: var(--text); }
.marker.gewaehlt .puls { animation: puls 1.8s ease-out infinite; }
@keyframes puls { from { opacity: .55; transform: scale(1); } to { opacity: 0; transform: scale(3.2); } }
@media (prefers-reduced-motion: reduce) { .marker.gewaehlt .puls { animation: none; opacity: .3; transform: scale(2); } }
.marker.aus, .bahn.aus { opacity: .15; pointer-events: none; }

@media (max-width: 40rem) {
  .marker text { font-size: 24px; }
  .marker .punkt { transform: scale(1.25); }
}

/* Panel */
.panel {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.4rem 1.4rem 1.2rem;
  box-shadow: 0 1px 0 rgba(23,38,46,.06), 0 18px 40px -28px rgba(7,43,61,.5);
  min-height: 14rem;
}
.panel h3 { font-size: 1.6rem; letter-spacing: -.02em; line-height: 1.15; margin: 0 0 .25rem; color: var(--ostsee); }
.panel p { margin: 0 0 .9rem; }
.panel-leer p { color: var(--text-leise); }
.legende { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: .35rem; font-size: .95rem; }

.detail { border-top: 5px solid var(--kat); margin: -1.4rem -1.4rem 0; padding: 1.2rem 1.4rem 0; border-radius: var(--radius) var(--radius) 0 0; }
.detail-kat, .ort-kat { font-size: .9rem; font-weight: 600; color: var(--text-leise); margin: 0 0 .4rem; }
.ort-lage { color: var(--text-leise); font-size: .95rem; }

.fakten { margin: 0 0 .9rem; display: grid; gap: .5rem; font-size: .95rem; }
.fakten div { display: grid; grid-template-columns: 9.5rem 1fr; gap: .8rem; padding-bottom: .5rem; border-bottom: 1px solid #e6ecee; }
.fakten dt { font-weight: 650; }
.fakten dd { margin: 0; }
@media (max-width: 30rem) { .fakten div { grid-template-columns: 1fr; gap: 0; } }

.quelle { font-size: .85rem; color: var(--text-leise); }

.kartenhinweis { max-width: var(--mass); margin: .9rem auto 0; font-size: .85rem; color: var(--text-leise); }

/* ---------- Orte-Liste ---------- */

.orte { padding: 2rem 0 4rem; }
.ort-liste {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: var(--mass);
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 21rem), 1fr));
}
.ort article {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: var(--radius);
  padding: 1.3rem 1.3rem 1.2rem;
  border-top: 5px solid var(--kat);
  box-shadow: 0 1px 0 rgba(23,38,46,.05);
}
.ort h3 { font-size: 1.35rem; letter-spacing: -.015em; margin: 0; color: var(--ostsee); line-height: 1.2; }
.ort .ort-lage { margin: .2rem 0 .8rem; }
.ort p { margin: 0 0 .9rem; }
.ort[hidden] { display: none; }
.zur-karte {
  margin-top: auto;
  align-self: flex-start;
  font: inherit;
  font-size: .95rem;
  font-weight: 600;
  background: none;
  border: 1.5px solid var(--ostsee-hell);
  color: var(--ostsee);
  border-radius: 999px;
  padding: .45rem .9rem;
  cursor: pointer;
}
.zur-karte:hover { background: var(--ostsee); color: #fff; }

/* ---------- Rechtstexte ---------- */

.rechtstext { max-width: 44rem; margin: 0 auto; padding: 3rem 1rem 3rem; }
.rechtstext .marke a { color: var(--text-leise); text-decoration: none; }
.rechtstext h1 { font-size: clamp(2rem, 7vw, 2.8rem); letter-spacing: -.03em; color: var(--ostsee); margin: 0 0 1rem; }
.rechtstext h2 { font-size: 1.25rem; margin: 2rem 0 .5rem; color: var(--ostsee); }

/* ---------- Fuß ---------- */

.fuss { background: var(--tiefsee); color: #c7d8de; padding: 2.5rem 1rem 3rem; font-size: .9rem; }
.fuss-inner { max-width: var(--mass); margin: 0 auto; }
.fuss a { color: #fff; }
.fuss p { margin: 0 0 .6rem; max-width: 70ch; }
.fuss nav { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; margin-bottom: 1rem; }
.ort .fakten div { grid-template-columns: 7.5rem 1fr; }