/* OWL Klimakarte – Grundlayout
   Farben: Tanne (Text), Nebel (Fläche), Papier, Flechte (Akzent), Moos (Nebentext).
   Datenfarben werden nur für Messwerte verwendet. */

@font-face {
  font-family: "Familjen Grotesk";
  src: url("../fonts/familjen-grotesk.woff") format("woff");
  font-weight: 400 700;
  font-display: swap;
}
@font-face {
  font-family: "Atkinson Hyperlegible Next";
  src: url("../fonts/atkinson-hyperlegible-next.woff") format("woff");
  font-weight: 200 800;
  font-display: swap;
}

:root {
  --tanne: #16332c;
  --tanne-2: #24473f;
  --nebel: #e6ece8;
  --papier: #f6f8f6;
  --flechte: #bcd35c;
  --flechte-tief: #9db43c;
  --moos: #4f6b4a;
  --linie: #c9d4cd;

  /* Feinstaub PM2.5 (µg/m³) */
  --pm-1: #3e9a5d; /* bis 5   */
  --pm-2: #9cbf3b; /* bis 15  */
  --pm-3: #e2b93b; /* bis 25  */
  --pm-4: #d9752b; /* bis 50  */
  --pm-5: #a23b5a; /* über 50 */

  --schrift-titel: "Familjen Grotesk", "Arial Narrow", system-ui, sans-serif;
  --schrift-text: "Atkinson Hyperlegible Next", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Typo-Skala, Verhältnis 1.25 */
  --t-0: 0.8rem;
  --t-1: 1rem;
  --t-2: 1.25rem;
  --t-3: 1.5625rem;
  --t-4: clamp(1.75rem, 1.3rem + 1.6vw, 2.44rem);
  --t-5: clamp(2.3rem, 1.5rem + 3.6vw, 4.2rem);

  --rand: clamp(1.1rem, 4vw, 3rem);
  --breite: 72rem;
  --kopf-hoehe: 4.25rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--schrift-text);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--tanne);
  background: var(--nebel);
}
img, svg { display: block; max-width: 100%; }
a { color: var(--tanne); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--tanne); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 {
  font-family: var(--schrift-titel);
  font-weight: 650;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0;
}
h1 { font-size: var(--t-5); letter-spacing: -0.03em; }
h2 { font-size: var(--t-4); letter-spacing: -0.02em; }
h3 { font-size: var(--t-2); line-height: 1.2; }
p { margin: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.skip {
  position: absolute; left: 1rem; top: -3rem; z-index: 2000;
  background: var(--flechte); padding: .5rem .9rem; border-radius: 6px;
}
.skip:focus { top: .75rem; }

/* ---------- Kopfzeile ---------- */
.kopf {
  position: sticky; top: 0; z-index: 1000;
  height: var(--kopf-hoehe);
  background: color-mix(in srgb, var(--nebel) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--linie);
}
.kopf__innen {
  height: 100%;
  max-width: calc(var(--breite) + 2 * var(--rand)); margin: 0 auto; padding: 0 var(--rand);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.marke {
  display: flex; align-items: center; gap: .6rem;
  font-family: var(--schrift-titel); font-weight: 700; font-size: 1.2rem;
  letter-spacing: -0.02em; text-decoration: none;
}
.marke svg { width: 30px; height: 30px; flex: none; }

.nav { display: flex; align-items: center; }
.nav__liste { display: flex; gap: .25rem; list-style: none; margin: 0; padding: 0; }
.nav__liste a {
  display: block; padding: .45rem .8rem; border-radius: 999px;
  text-decoration: none; font-weight: 600; font-size: .98rem;
}
.nav__liste a:hover { background: var(--papier); }
.nav__liste a[aria-current="page"] { background: var(--tanne); color: var(--papier); }

.nav__knopf {
  display: none;
  font: inherit; font-weight: 600; color: var(--tanne);
  background: var(--papier); border: 1px solid var(--linie);
  border-radius: 999px; padding: .4rem .9rem; cursor: pointer;
}

@media (max-width: 46rem) {
  .nav__knopf { display: inline-flex; align-items: center; gap: .45rem; }
  .nav__liste {
    display: none;
    position: absolute; right: var(--rand); top: calc(var(--kopf-hoehe) - .35rem);
    flex-direction: column; min-width: 12rem; padding: .4rem;
    background: var(--papier); border: 1px solid var(--linie); border-radius: 14px;
    box-shadow: 0 12px 30px rgba(22, 51, 44, .14);
  }
  .nav[data-offen="true"] .nav__liste { display: flex; }
  .nav__liste a { padding: .7rem .9rem; border-radius: 9px; }
}

/* ---------- Knöpfe ---------- */
.knopf {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .8rem 1.3rem; border-radius: 999px;
  font-weight: 700; text-decoration: none; line-height: 1.2;
  border: 2px solid var(--tanne);
}
.knopf--voll { background: var(--flechte); border-color: var(--flechte); }
.knopf--voll:hover { background: var(--flechte-tief); border-color: var(--flechte-tief); }
.knopf--rand:hover { background: var(--papier); }

/* ---------- Startseite: Einstieg ---------- */
.einstieg {
  max-width: calc(var(--breite) + 2 * var(--rand)); margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5.5rem) var(--rand) clamp(2.5rem, 6vw, 4.5rem);
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem); align-items: center;
}
.einstieg h1 { max-width: 13ch; }
.einstieg__text > p { font-size: var(--t-2); line-height: 1.5; max-width: 34ch; margin-top: 1.4rem; }
.einstieg__aktionen { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.hinweis {
  margin-top: 2rem; max-width: 40ch;
  font-size: .95rem; color: var(--moos);
  padding-left: .9rem; border-left: 3px solid var(--flechte);
}

.relief {
  position: relative; margin: 0;
}
.relief svg { width: 100%; height: auto; overflow: visible; }
.iso { fill: none; stroke: var(--moos); stroke-width: 1; opacity: .38; }
.iso-major { stroke-width: 1.6; opacity: .55; }
.kamm-text { font-family: var(--schrift-titel); font-size: 15px; fill: var(--moos); letter-spacing: .04em; font-style: italic; }
.funk { stroke: var(--tanne); stroke-width: 2; stroke-linecap: round; fill: none; }
.knoten { stroke: var(--tanne); stroke-width: 2.5; }
.gateway-ring { fill: none; stroke: var(--tanne); stroke-width: 2; }
.knoten-text { font-family: var(--schrift-text); font-size: 13px; fill: var(--tanne); font-weight: 600; }

@media (prefers-reduced-motion: no-preference) {
  .funk { stroke-dasharray: var(--l); stroke-dashoffset: var(--l); animation: funken 1.1s cubic-bezier(.3,.6,.3,1) forwards; animation-delay: calc(var(--i) * 110ms + 250ms); }
  .knoten, .gateway-ring { transform-box: fill-box; transform-origin: center; transform: scale(0); animation: auftauchen .4s cubic-bezier(.3,1.6,.5,1) forwards; animation-delay: calc(var(--i) * 90ms); }
  @keyframes funken { to { stroke-dashoffset: 0; } }
  @keyframes auftauchen { to { transform: scale(1); } }
}

@media (max-width: 52rem) {
  .einstieg { grid-template-columns: 1fr; }
  .relief { max-width: 30rem; }
}

/* ---------- Abschnitte ---------- */
.abschnitt { padding: clamp(3rem, 8vw, 6rem) var(--rand); }
.abschnitt--papier { background: var(--papier); }
.abschnitt--tanne { background: var(--tanne); color: var(--papier); }
.abschnitt--tanne a { color: var(--papier); }
.innen { max-width: var(--breite); margin: 0 auto; }
.abschnitt h2 { max-width: 22ch; }
.lead { font-size: var(--t-2); line-height: 1.5; max-width: 40ch; margin-top: 1rem; }

/* Was gemessen wird */
.messgroessen {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 5rem); margin-top: 3rem;
}
.messgroessen h3 { font-size: var(--t-3); margin-bottom: .75rem; }
.messgroessen > div > p { max-width: 38ch; }
.werte { list-style: none; margin: 1.5rem 0 0; padding: 0; border-top: 1px solid var(--linie); }
.werte li {
  display: grid; grid-template-columns: 8.5rem 1fr; gap: 1rem;
  padding: .85rem 0; border-bottom: 1px solid var(--linie);
}
.werte b { font-family: var(--schrift-titel); font-size: 1.1rem; }
.werte span { color: var(--moos); }

.skala { margin-top: 1.5rem; }
.skala__balken { display: flex; height: 10px; border-radius: 99px; overflow: hidden; }
.skala__balken i { flex: 1; }
.skala__beschriftung { display: flex; justify-content: space-between; font-size: var(--t-0); color: var(--moos); margin-top: .35rem; }

@media (max-width: 46rem) {
  .messgroessen { grid-template-columns: 1fr; }
  .werte li { grid-template-columns: 1fr; gap: .1rem; }
}

/* Ablauf */
.ablauf {
  list-style: none; padding: 0; margin: 3rem 0 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0;
  counter-reset: schritt;
}
.ablauf li {
  counter-increment: schritt;
  padding: 1.6rem 1.5rem 0 0; position: relative;
  border-top: 2px solid color-mix(in srgb, var(--papier) 35%, transparent);
}
.ablauf li::before {
  content: counter(schritt);
  position: absolute; top: -1.05rem; left: 0;
  width: 2rem; height: 2rem; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--flechte); color: var(--tanne);
  font-family: var(--schrift-titel); font-weight: 700;
}
.ablauf h3 { margin: .6rem 0 .5rem; }
.ablauf p { color: color-mix(in srgb, var(--papier) 82%, var(--tanne)); max-width: 30ch; }
@media (max-width: 52rem) {
  .ablauf { grid-template-columns: 1fr; gap: 2.4rem; }
  .ablauf li { padding: 1.4rem 0 0; }
}

/* Mitmachen */
.wege { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 3vw, 3rem); margin-top: 3rem; }
.weg h3 { margin-bottom: .6rem; }
.weg p { max-width: 34ch; }
.weg ul { margin: .9rem 0 0; padding-left: 1.1rem; color: var(--moos); }
.weg li + li { margin-top: .3rem; }
.kontakt {
  margin-top: 3.5rem; padding: clamp(1.4rem, 3vw, 2.2rem);
  background: var(--flechte); border-radius: 18px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem 2rem;
}
.kontakt p { font-family: var(--schrift-titel); font-size: var(--t-3); line-height: 1.2; font-weight: 650; max-width: 26ch; }
.kontakt .knopf { background: var(--tanne); color: var(--papier); border-color: var(--tanne); }
.kontakt .knopf:hover { background: var(--tanne-2); }
@media (max-width: 52rem) { .wege { grid-template-columns: 1fr; } }

/* Grundsätze */
.grundsaetze { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 3vw, 3rem); margin: 2.5rem 0 0; }
.grundsaetze dt { font-family: var(--schrift-titel); font-weight: 650; font-size: var(--t-2); }
.grundsaetze dd { margin: .5rem 0 0; color: var(--moos); max-width: 32ch; }
@media (max-width: 52rem) { .grundsaetze { grid-template-columns: 1fr; } }

/* ---------- Fuß ---------- */
.fuss { background: var(--tanne); color: var(--nebel); padding: 2.5rem var(--rand); font-size: .95rem; }
.fuss .innen { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem 2rem; }
.fuss a { color: var(--nebel); }
.fuss ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem 1.5rem; }

/* ---------- Textseiten (Impressum, Datenschutz) ---------- */
.textseite { max-width: 44rem; margin: 0 auto; padding: clamp(2.5rem, 6vw, 4.5rem) var(--rand) 5rem; }
.textseite h1 { font-size: var(--t-4); margin-bottom: 1.5rem; }
.textseite h2 { font-size: var(--t-2); margin: 2.4rem 0 .6rem; }
.textseite p + p, .textseite p + ul, .textseite ul + p { margin-top: .8rem; }
.textseite ul { padding-left: 1.2rem; }
.vorlage {
  background: #fff6d6; border: 1px solid #e2c867; border-radius: 12px;
  padding: 1rem 1.2rem; margin-bottom: 2rem; font-size: .95rem;
}
mark.platzhalter { background: #fde9a6; padding: 0 .2em; border-radius: 3px; }

/* ---------- Karte ---------- */
.seite-voll { display: flex; flex-direction: column; height: 100dvh; }
.seite-voll .kopf { position: relative; flex: none; }
.karte-wrap { position: relative; flex: 1; min-height: 0; }
#karte { position: absolute; inset: 0; background: #dfe6e1; }

.tafel {
  position: absolute; z-index: 500; left: 1rem; top: 1rem;
  width: min(20.5rem, calc(100% - 2rem));
  background: var(--papier); border-radius: 16px;
  box-shadow: 0 10px 30px rgba(22, 51, 44, .18);
  padding: 1.1rem 1.2rem 1.2rem;
}
.tafel h1 { font-size: var(--t-3); }
.tafel__info { font-size: .9rem; color: var(--moos); margin-top: .3rem; }
.tafel fieldset { border: 0; padding: 0; margin: 1rem 0 0; }
.tafel legend { font-weight: 700; font-size: .95rem; margin-bottom: .45rem; padding: 0; }
.umschalter { display: flex; background: var(--nebel); border-radius: 999px; padding: 3px; }
.umschalter label { flex: 1; }
.umschalter input { position: absolute; opacity: 0; pointer-events: none; }
.umschalter span {
  display: block; text-align: center; padding: .45rem .5rem; border-radius: 999px;
  font-weight: 600; font-size: .93rem; cursor: pointer;
}
.umschalter input:checked + span { background: var(--tanne); color: var(--papier); }
.umschalter input:focus-visible + span { outline: 3px solid var(--tanne); outline-offset: 2px; }
.legende { margin-top: 1rem; }
.legende__balken { display: flex; height: 10px; border-radius: 99px; overflow: hidden; }
.legende__balken i { flex: 1; }
.legende__werte { display: flex; justify-content: space-between; font-size: .8rem; color: var(--moos); margin-top: .3rem; font-variant-numeric: tabular-nums; }
.legende__titel { font-size: .85rem; margin-top: .2rem; }
.demo-hinweis {
  margin-top: 1rem; font-size: .85rem; padding: .6rem .75rem; border-radius: 10px;
  background: #fff6d6; border: 1px solid #e2c867;
}
.tafel__zu {
  display: none; position: absolute; top: .7rem; right: .7rem;
  background: none; border: 0; font: inherit; font-weight: 700; color: var(--moos); cursor: pointer; padding: .3rem .5rem;
}
.tafel-auf {
  display: none; position: absolute; z-index: 500; left: 1rem; top: 1rem;
  font: inherit; font-weight: 700; background: var(--papier); color: var(--tanne);
  border: 0; border-radius: 999px; padding: .6rem 1rem; box-shadow: 0 6px 20px rgba(22,51,44,.2); cursor: pointer;
}
@media (max-width: 46rem) {
  .tafel { top: auto; bottom: 1rem; left: .75rem; width: calc(100% - 1.5rem); padding: .9rem 1rem 1rem; }
  .tafel__zu { display: block; }
  .tafel[hidden] { display: none; }
  .tafel-auf { top: auto; bottom: 1rem; left: .75rem; }
  .tafel-auf[data-sichtbar="true"] { display: block; }
}

.leaflet-container { font-family: var(--schrift-text); }
.leaflet-popup-content-wrapper { border-radius: 14px; }
.leaflet-popup-content { margin: 14px 16px; min-width: 210px; }
.popup h2 { font-size: 1.15rem; margin: 0; }
.popup__ort { color: var(--moos); font-size: .85rem; margin: .15rem 0 .6rem !important; }
.popup table { width: 100%; border-collapse: collapse; font-size: .92rem; font-variant-numeric: tabular-nums; }
.popup th { text-align: left; font-weight: 400; color: var(--moos); padding: .22rem 0; }
.popup td { text-align: right; font-weight: 700; padding: .22rem 0; }
.popup tr + tr th, .popup tr + tr td { border-top: 1px solid var(--linie); }
.popup__zeit { font-size: .8rem; color: var(--moos); margin-top: .5rem !important; }
.messpunkt {
  width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--schrift-titel); font-weight: 700; font-size: 14px; letter-spacing: -0.02em;
  border: 2.5px solid var(--tanne);
  box-shadow: 0 2px 6px rgba(22, 51, 44, .3);
  font-variant-numeric: tabular-nums;
}
.messpunkt--gateway { box-shadow: 0 0 0 3px var(--papier), 0 0 0 5px var(--tanne), 0 2px 8px rgba(22, 51, 44, .35); }
.messpunkt--leer { background: var(--papier); border-style: dashed; }
.messpunkt--alt { opacity: .55; }
.leaflet-marker-icon:focus-visible .messpunkt { outline: 3px solid var(--tanne); outline-offset: 4px; }

/* ---------- Dashboard ---------- */
.dashboard-wrap { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.dashboard-leiste {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: .6rem var(--rand); background: var(--papier); border-bottom: 1px solid var(--linie); font-size: .95rem;
}
.dashboard-leiste h1 { font-size: var(--t-2); }
.dashboard-rahmen { flex: 1; width: 100%; border: 0; background: #fff; }
.leer {
  flex: 1; display: grid; place-items: center; padding: 3rem var(--rand);
}
.leer__box { max-width: 36rem; }
.leer h1 { font-size: var(--t-4); }
.leer p { margin-top: 1rem; font-size: 1.1rem; }
.leer ol { margin: 1.2rem 0 0; padding-left: 1.3rem; }
.leer li + li { margin-top: .4rem; }
.leer code { background: var(--papier); padding: .1em .35em; border-radius: 5px; font-size: .92em; }
.leer .knopf { margin-top: 1.8rem; }

/* Zahlen in Skalen und Tabellen in der Titelschrift (ohne durchgestrichene Null) */
.skala__beschriftung, .legende__werte, .popup td { font-family: var(--schrift-titel); }