/* ============================================================
   GEO-GLOSSAR.DE — Stylesheet
   Palette aus dem Logo abgeleitet: Schiefer, Moos, Stein, Mineral.
   ============================================================ */

:root {
  /* Farben */
  --slate:      #1f3a47;   /* Schiefer-Dunkelblau (Logo-Outline) */
  --slate-deep: #142730;   /* tiefer, für Footer */
  --moss:       #5a7d52;   /* Salbeigrün, primärer Akzent (Flächen) */
  --moss-text:  #4a6943;   /* dunkler für Text auf Hell (Kontrast >=4.5) */
  --moss-dark:  #46633f;   /* Hover */
  --stone:      #9c7f5f;   /* Sandbraun (Flächen) */
  --stone-text: #806948;   /* dunkler für Text auf Hell */
  --sky:        #5f8593;   /* Mineralblau */
  --sky-deep:   #436675;
  --paper:      #f7f5f0;   /* warmes Papier */
  --paper-2:    #efece4;   /* leicht dunkler */
  --card:       #ffffff;
  --ink:        #2a2d2e;   /* Fließtext */
  --ink-soft:   #5c625f;   /* gedämpft */
  --line:       #e2ddd2;   /* Trennlinien auf hell */
  --line-soft:  rgba(31,58,71,0.10);

  /* Schrift */
  --f-display: 'Space Grotesk', system-ui, sans-serif;
  --f-body:    'Inter', system-ui, sans-serif;

  /* Layout */
  --max-w: 1240px;
  --pad-x: clamp(1rem, 5vw, 3.5rem);
  --nav-h: 76px;
  --r:    14px;
  --r-sm: 9px;
  --shadow: 0 1px 2px rgba(20,39,48,.04), 0 8px 30px rgba(20,39,48,.07);
  --shadow-sm: 0 1px 2px rgba(20,39,48,.05), 0 3px 12px rgba(20,39,48,.06);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--sky-deep); text-decoration: none; }
a:hover { color: var(--moss-text); }
h1,h2,h3,h4 { font-family: var(--f-display); font-weight: 600; line-height: 1.1; color: var(--slate); letter-spacing: -0.01em; }
.no-js * { animation: none !important; transition: none !important; }

::selection { background: var(--moss); color: #fff; }

/* Sichtbarer Fokus */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--moss);
  outline-offset: 2px;
  border-radius: 3px;
}

.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad-x); }
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--slate); color: #fff; padding: .75rem 1.25rem; border-radius: 0 0 var(--r-sm) 0;
}
.skip:focus { left: 0; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}
.intro-cols { columns: 2; column-gap: 3rem; }
.intro-cols p { margin-bottom: 1.1rem; break-inside: avoid; }
@media (max-width: 760px){ .intro-cols { columns: 1; } }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247,245,240,0.88);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
}
.brand { display: flex; align-items: center; gap: .7rem; flex-shrink: 0; }
.brand img { width: 42px; height: 42px; object-fit: contain; }
.brand-txt { display: flex; flex-direction: column; line-height: 1; }
.brand-name {
  font-family: var(--f-display); font-weight: 600; font-size: 1.28rem;
  color: var(--slate); letter-spacing: .01em;
}
.brand-name span { color: var(--moss-text); }
.brand-tag {
  font-size: .56rem; font-weight: 600; letter-spacing: .22em;
  color: var(--ink-soft); text-transform: uppercase; margin-top: 3px;
}
.nav-links { display: flex; align-items: center; gap: clamp(.5rem,1.6vw,1.6rem); list-style: none; }
.nav-links a {
  font-size: .82rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--slate); padding: .4rem 0; position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: var(--moss); transition: width .25s ease;
}
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { width: 100%; }
.nav-links a[aria-current="page"] { color: var(--moss-text); }
.nav-tools { display: flex; align-items: center; gap: .25rem; }
.icon-btn {
  width: 40px; height: 40px; display: grid; place-items: center;
  background: none; border: none; border-radius: 9px; cursor: pointer; color: var(--slate);
}
.icon-btn:hover { background: var(--paper-2); color: var(--moss-text); }
.icon-btn svg { width: 20px; height: 20px; }
.burger { display: none; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 460px;
  display: grid; place-items: center;
  text-align: center;
  color: #fff;
  padding: 4rem var(--pad-x) 3.5rem;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(20,39,48,.62) 0%, rgba(20,39,48,.42) 45%, rgba(31,58,71,.72) 100%),
    url('/geo-hero.webp') center 38% / cover no-repeat;
  z-index: 0;
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; width: 100%; }
.hero h1 {
  color: #fff;
  font-size: clamp(2.3rem, 5.5vw, 4rem);
  line-height: 1.02;
  text-shadow: 0 2px 20px rgba(0,0,0,.3);
}
.hero h1 em { font-style: italic; color: #dbe7d6; font-weight: 500; }
.hero p {
  margin: 1.1rem auto 0; max-width: 540px;
  font-size: 1.08rem; color: rgba(255,255,255,.9);
  text-shadow: 0 1px 10px rgba(0,0,0,.35);
}

/* Suchleiste */
.searchbar {
  margin: 2rem auto 0; max-width: 620px;
  display: flex; align-items: center; gap: .6rem;
  background: #fff; border-radius: 999px;
  padding: .55rem .65rem .55rem 1.4rem;
  box-shadow: 0 18px 50px rgba(20,39,48,.28);
}
.searchbar svg { width: 21px; height: 21px; color: var(--moss); flex-shrink: 0; }
.searchbar input {
  flex: 1; border: none; outline: none; background: none;
  font-family: var(--f-body); font-size: 1.02rem; color: var(--ink);
}
.searchbar input::placeholder { color: #9aa09c; }
.searchbar button {
  border: none; cursor: pointer;
  background: var(--moss); color: #fff;
  font-family: var(--f-body); font-weight: 600; font-size: .92rem;
  padding: .7rem 1.5rem; border-radius: 999px;
  transition: background .2s; white-space: nowrap;
}
.searchbar button:hover { background: var(--moss-dark); }
@media (max-width: 520px){
  .searchbar { padding: .5rem .55rem .5rem 1.1rem; gap: .4rem; }
  .searchbar button { padding: .65rem 1.1rem; font-size: .85rem; }
  .hero h1 { font-size: clamp(2rem, 8vw, 2.6rem); }
}

/* Feature-Karten überlappend */
.feature-row {
  position: relative; z-index: 3;
  margin: -3.2rem auto 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}
@media (max-width: 860px){
  .feature-row { grid-template-columns: 1fr; margin-top: -2rem; }
}
.feat {
  background: var(--card); border-radius: var(--r);
  padding: 1.6rem 1.5rem; box-shadow: var(--shadow);
  display: flex; gap: 1rem; align-items: flex-start;
  border: 1px solid var(--line);
}
.feat-ico {
  flex-shrink: 0; width: 50px; height: 50px; border-radius: 12px;
  display: grid; place-items: center; color: #fff;
}
.feat-ico svg { width: 25px; height: 25px; }
.feat:nth-child(1) .feat-ico { background: var(--moss); }
.feat:nth-child(2) .feat-ico { background: var(--stone); }
.feat:nth-child(3) .feat-ico { background: var(--sky); }
.feat h3 { font-size: 1.18rem; margin-bottom: .25rem; }
.feat:nth-child(2) h3 { color: var(--stone-text); }
.feat p { font-size: .92rem; color: var(--ink-soft); line-height: 1.5; }

/* ============================================================
   SECTIONS
   ============================================================ */
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-head { display: flex; align-items: baseline; gap: .8rem; margin-bottom: 1.8rem; }
.section-head .eyebrow {
  font-size: .72rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase;
  color: var(--moss-text); display: flex; align-items: center; gap: .5rem;
}
.section-head .eyebrow svg { width: 18px; height: 18px; }
.section-title { font-size: clamp(1.7rem, 3.5vw, 2.4rem); }

/* Schichten-Motiv (Signature): feine horizontale Linien */
.strata { position: relative; }
.strata::before {
  content: ''; position: absolute; left: 0; right: 0; top: 0; height: 5px;
  background: repeating-linear-gradient(90deg,
    var(--moss) 0 22%, transparent 22% 25%,
    var(--stone) 25% 47%, transparent 47% 50%,
    var(--sky) 50% 78%, transparent 78% 81%,
    var(--slate) 81% 100%);
  opacity: .9;
}

/* ============================================================
   GLOSSAR A–Z
   ============================================================ */
.glossar-section { background: var(--paper); position: relative; z-index: 1; }
.glossar-layout { display: grid; grid-template-columns: 1fr 320px; gap: 2.5rem; align-items: start; }
@media (max-width: 920px){ .glossar-layout { grid-template-columns: 1fr; } }

.alpha {
  display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1.8rem;
}
.alpha a, .alpha span {
  width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 9px; font-weight: 600; font-size: .92rem;
  background: var(--card); color: var(--slate);
  border: 1px solid var(--line); transition: all .18s;
}
.alpha a:hover { background: var(--moss); color: #fff; border-color: var(--moss); transform: translateY(-2px); }
.alpha span { color: #c2c0b8; background: var(--paper-2); cursor: default; }

.term-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem; }
@media (max-width: 620px){ .term-grid { grid-template-columns: 1fr; } }
.term-card {
  background: var(--card); border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s;
}
.term-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.term-card .thumb { aspect-ratio: 16/8; overflow: hidden; background: var(--paper-2); }
.term-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.term-card .body { padding: 1.1rem 1.2rem 1.3rem; flex: 1; display: flex; flex-direction: column; }
.term-card h3 { font-size: 1.3rem; margin-bottom: .35rem; }
.term-card p { font-size: .9rem; color: var(--ink-soft); line-height: 1.5; flex: 1; }
.term-more {
  margin-top: .9rem; font-size: .76rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--moss-text); display: inline-flex; align-items: center; gap: .4rem;
}
.term-card:hover .term-more { gap: .65rem; }

.btn-wide {
  display: block; margin: 2rem auto 0; width: fit-content;
  background: var(--slate); color: #fff;
  font-weight: 600; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase;
  padding: .95rem 2.2rem; border-radius: 999px; transition: background .2s;
}
.btn-wide:hover { background: var(--moss); color: #fff; }

/* Begriff des Tages */
.aside-card {
  background: var(--card); border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  position: sticky; top: calc(var(--nav-h) + 1.5rem);
}
.aside-card .head {
  padding: 1rem 1.3rem; display: flex; align-items: center; gap: .55rem;
  font-size: .72rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--stone-text); border-bottom: 1px solid var(--line);
}
.aside-card .head svg { width: 17px; height: 17px; }
.aside-card .thumb { aspect-ratio: 16/9; overflow: hidden; }
.aside-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.aside-card .body { padding: 1.2rem 1.3rem 1.5rem; }
.aside-card h3 { font-size: 1.5rem; margin-bottom: .4rem; }
.aside-card p { font-size: .9rem; color: var(--ink-soft); line-height: 1.55; }
.aside-card .term-more { margin-top: 1rem; }

/* ============================================================
   STATS
   ============================================================ */
.stats { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); position: relative; z-index: 1; }
.stats .wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; padding-top: 2.2rem; padding-bottom: 2.2rem; }
.stat { display: flex; align-items: center; gap: .9rem; justify-content: center; }
.stat svg { width: 34px; height: 34px; color: var(--moss); flex-shrink: 0; }
.stat:nth-child(2) svg { color: var(--stone); }
.stat:nth-child(3) svg { color: var(--sky); }
.stat:nth-child(4) svg { color: var(--slate); }
.stat .num { font-family: var(--f-display); font-size: 1.9rem; font-weight: 600; color: var(--slate); line-height: 1; }
.stat .lbl { font-size: .82rem; color: var(--ink-soft); }
@media (max-width: 720px){ .stats .wrap { grid-template-columns: repeat(2,1fr); gap: 1.6rem; } }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--slate-deep); color: rgba(255,255,255,.72);
  position: relative; z-index: 1; overflow: hidden;
}
.footer .wrap { padding-top: 3.2rem; padding-bottom: 1.5rem; position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2.5rem; }
.footer .brand-name { color: #fff; }
.footer .brand-tag { color: rgba(255,255,255,.5); }
.footer-intro { font-size: .9rem; line-height: 1.6; margin-top: 1rem; max-width: 320px; }
.footer h4, .footer .footer-h {
  color: #fff; font-family: var(--f-body); font-size: .76rem; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase; margin-bottom: 1rem;
}
.footer ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: .55rem; }
.footer ul a { color: rgba(255,255,255,.72); font-size: .92rem; }
.footer ul a:hover { color: var(--moss-text); }
.footer-social { display: flex; gap: .7rem; margin-top: 1.2rem; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(255,255,255,.07); color: #fff;
}
.footer-social a:hover { background: var(--moss); }
.footer-social svg { width: 18px; height: 18px; }
.footer-bottom {
  margin-top: 2.5rem; padding-top: 1.3rem; border-top: 1px solid rgba(255,255,255,.1);
  font-size: .82rem; color: rgba(255,255,255,.5); text-align: center;
}
.footer-globe {
  position: absolute; right: -60px; bottom: -80px; width: 320px; height: 320px;
  opacity: .05; z-index: 0; pointer-events: none;
}
@media (max-width: 820px){ .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
@media (max-width: 480px){ .footer-grid { grid-template-columns: 1fr; } }

/* ============================================================
   GLOSSAR-ÜBERSICHT (Seite)
   ============================================================ */
.page-hero {
  background: var(--slate); color: #fff;
  padding: calc(var(--nav-h) - 20px) var(--pad-x) 3rem;
  padding-top: 3.2rem;
  position: relative; z-index: 1; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background:
    linear-gradient(90deg,
      var(--slate) 0%, var(--slate) 32%,
      rgba(31,58,71,.86) 50%, rgba(31,58,71,.55) 72%, rgba(31,58,71,.35) 100%),
    url('/hero-sub.webp') center right / cover no-repeat;
}
.page-hero > .wrap { position: relative; z-index: 1; }
.page-hero .crumb { font-size: .8rem; color: rgba(255,255,255,.6); margin-bottom: .9rem; }
.page-hero .crumb a { color: rgba(255,255,255,.8); }
.page-hero h1 { color: #fff; font-size: clamp(2rem, 4.5vw, 3rem); text-shadow: 0 1px 12px rgba(0,0,0,.25); }
.page-hero p { color: rgba(255,255,255,.9); max-width: 600px; margin-top: .8rem; text-shadow: 0 1px 10px rgba(0,0,0,.3); }
@media (max-width: 640px){
  /* Auf Mobil Bild stärker abdunkeln, da Text die volle Breite nutzt */
  .page-hero::before { background:
    linear-gradient(90deg, var(--slate) 0%, rgba(31,58,71,.82) 60%, rgba(31,58,71,.6) 100%),
    url('/hero-sub.webp') center right / cover no-repeat; }
}

.letter-block { margin-bottom: 2.6rem; scroll-margin-top: calc(var(--nav-h) + 1rem); }
.anchor-alias { display: block; height: 0; scroll-margin-top: calc(var(--nav-h) + 1rem); }
.letter-block h2 {
  font-size: 2rem; color: var(--moss-text); border-bottom: 2px solid var(--line);
  padding-bottom: .4rem; margin-bottom: 1.1rem;
}
.term-list { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); gap: .7rem 1.5rem; }
.term-list a {
  display: flex; flex-direction: column; padding: .7rem .9rem; border-radius: var(--r-sm);
  border: 1px solid transparent; transition: all .15s;
}
.term-list a:hover { background: var(--card); border-color: var(--line); box-shadow: var(--shadow-sm); }
.term-list .t { font-family: var(--f-display); font-size: 1.18rem; color: var(--slate); }
.term-list .d { font-size: .82rem; color: var(--ink-soft); }

/* ============================================================
   BEGRIFF-SEITE (Definition)
   ============================================================ */
.def-layout { display: grid; grid-template-columns: 1fr 300px; gap: 3rem; align-items: start; }
@media (max-width: 920px){ .def-layout { grid-template-columns: 1fr; } }
.def-main h2 { font-size: 1.7rem; margin: 2.2rem 0 .8rem; }
.def-main h2:first-child { margin-top: 0; }
.def-main h3 { font-size: 1.15rem; margin: 1.4rem 0 .4rem; color: var(--slate); }
.def-main ul a[target="_blank"]::after { content: " ↗"; font-size: .8em; color: var(--ink-soft); }
.def-main p { margin-bottom: 1.1rem; }
.def-main ul, .def-main ol { margin: 0 0 1.2rem 1.2rem; }
.def-main li { margin-bottom: .5rem; }
.def-figure { border-radius: var(--r); overflow: hidden; margin: 0 0 2rem; border: 1px solid var(--line); }
.def-figure img { width: 100%; aspect-ratio: 16/8; object-fit: cover; }
.def-figure figcaption { font-size: .82rem; color: var(--ink-soft); padding: .6rem .9rem; background: var(--card); }

.def-lead {
  font-size: 1.18rem; line-height: 1.6; color: var(--slate);
  border-left: 4px solid var(--moss); padding-left: 1.2rem; margin-bottom: 1.8rem;
}
.def-meta {
  display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2rem;
}
.def-tag {
  font-size: .74rem; font-weight: 600; letter-spacing: .05em;
  padding: .35rem .8rem; border-radius: 999px;
  background: var(--paper-2); color: var(--slate); border: 1px solid var(--line);
}
.def-tag.cat { background: var(--moss); color: #fff; border-color: var(--moss); }

.related { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 1.3rem; }
.related h3, .related .related-title { font-family: var(--f-body); font-size: .76rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 1rem; }
.related .related-title { line-height: 1.2; }
.related ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: .2rem; }
.related ul a { display: block; padding: .55rem .7rem; border-radius: var(--r-sm); color: var(--slate); font-weight: 500; font-size: .95rem; }
.related ul a:hover { background: var(--paper); color: var(--moss-text); }
.related .sticky { position: sticky; top: calc(var(--nav-h) + 1.5rem); }

/* ============================================================
   MOBILE NAV
   ============================================================ */
@media (max-width: 900px){
  .burger { display: grid; }
  .nav-links {
    position: fixed; inset: var(--nav-h) 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: .5rem var(--pad-x) 1.5rem;
    transform: translateY(-120%); transition: transform .3s ease;
    box-shadow: var(--shadow);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links li { border-bottom: 1px solid var(--line); }
  .nav-links a { display: block; padding: 1rem 0; font-size: .95rem; }
  .nav-links a::after { display: none; }
}

/* ============================================================
   REVEAL-Animation
   Inhalt ist standardmäßig sichtbar. Erst wenn JS läuft (js-ready),
   starten Elemente versteckt und blenden beim Scrollen ein.
   So bleibt nie etwas unsichtbar, falls JS/Observer ausfällt.
   ============================================================ */
.js-ready .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js-ready .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce){
  .js-ready .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}