/* ============================================================
   EleON Geosondierungen - Visitenkarten-Website
   Keine externen Ressourcen (DSGVO: keine Google Fonts etc.)
   ============================================================ */

:root{
  --ink:        #0a0d10;
  --ink-2:      #10151a;
  --ink-3:      #161d24;
  --line:       #2a343d;
  --line-soft:  #1e262e;
  --text:       #dfe4e8;
  --text-dim:   #93a0ab;
  --text-faint: #62707c;
  --signal:     #ff5a1f;
  --amber:      #f6b83d;
  --leaf:       #8ab661;
  --paper:      #eceae5;
  --paper-ink:  #14191e;

  --mono: ui-monospace, "Cascadia Mono", "Segoe UI Mono", Consolas, "SF Mono", Menlo, monospace;
  --sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

  --gut: clamp(20px, 5vw, 80px);
  --maxw: 1360px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0; background:var(--ink); color:var(--text);
  font-family:var(--sans); font-size:17px; line-height:1.65;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img{ display:block; max-width:100%; height:auto; }
a{ color:inherit; }

/* ---------- Bausteine ---------- */
.wrap{ max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gut); }

.mono{
  font-family:var(--mono); font-size:11.5px; letter-spacing:.18em;
  text-transform:uppercase; color:var(--text-faint);
}

.sec{ padding:clamp(70px,10vw,140px) 0; position:relative; }
.sec + .sec{ border-top:1px solid var(--line-soft); }

.sec-head{
  display:grid; grid-template-columns:minmax(0,7.5rem) minmax(0,1fr);
  gap:clamp(16px,4vw,48px); align-items:start; margin-bottom:clamp(40px,6vw,72px);
}
.sec-head .idx{ padding-top:.55em; }
.sec-head .idx::before{
  content:""; display:block; width:34px; height:2px; background:var(--signal); margin-bottom:14px;
}
@media (max-width:700px){
  .sec-head{ grid-template-columns:1fr; gap:14px; }
  .sec-head .idx{ padding-top:0; }
}
h2{
  margin:0; font-size:clamp(28px,4.4vw,52px); line-height:1.08;
  letter-spacing:-.025em; font-weight:600; max-width:20ch;
}
h2 em{ font-style:normal; color:var(--text-faint); }
.lead{ margin:22px 0 0; max-width:62ch; color:var(--text-dim); font-size:clamp(16px,1.5vw,19px); }

/* ---------- Kopfzeile ---------- */
.topbar{
  position:fixed; inset:0 0 auto 0; z-index:60;
  backdrop-filter:blur(14px); background:rgba(10,13,16,.62);
  border-bottom:1px solid transparent; transition:background .3s, border-color .3s;
}
.topbar.solid{ background:rgba(10,13,16,.93); border-bottom-color:var(--line-soft); }
.topbar-in{
  max-width:var(--maxw); margin-inline:auto; padding:0 var(--gut);
  height:68px; display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.nav{ display:flex; gap:clamp(14px,2.4vw,32px); align-items:center; }
.nav a{
  font-family:var(--mono); font-size:11.5px; letter-spacing:.16em; text-transform:uppercase;
  color:var(--text-dim); text-decoration:none; padding:6px 0; position:relative;
}
.nav a::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:1px;
  background:var(--signal); transition:right .3s ease;
}
.nav a:hover{ color:var(--text); }
.nav a:hover::after{ right:0; }
@media (max-width:820px){ .nav a:not(.nav-cta){ display:none; } }
.nav-cta{ color:var(--text) !important; }
.nav-cta::after{ right:0 !important; background:var(--line); }
.nav-cta:hover::after{ background:var(--signal); }

/* Scan-Fortschritt */
.scanbar{
  position:fixed; top:0; left:0; height:2px; z-index:61; width:0;
  background:linear-gradient(90deg,transparent,var(--signal));
}

/* ---------- Wortmarke ---------- */
.brand{ display:flex; align-items:center; gap:11px; text-decoration:none; }
.brand svg{ width:26px; height:26px; flex:none; }
.brand b{ font-size:18px; letter-spacing:.01em; font-weight:600; display:block; line-height:1.15; }
.brand b span{ color:var(--signal); }
.brand small{
  display:block; font-family:var(--mono); font-size:9.5px; letter-spacing:.24em;
  text-transform:uppercase; color:var(--text-faint);
}

/* ---------- Hero ---------- */
.hero{
  position:relative; min-height:clamp(600px,100svh,960px); display:flex; align-items:flex-end;
  overflow:hidden;
  /* oben Platz für die fixierte Kopfzeile, damit der gewachsene Inhalt
     nicht darunter rutscht */
  padding:clamp(96px,13vh,140px) 0 clamp(44px,7vw,86px);
}
.hero-img{ position:absolute; inset:0; }
.hero-img img{
  width:100%; height:100%; object-fit:cover; object-position:50% 55%;
  filter:saturate(.72) contrast(1.05) brightness(.82);
}
.hero-img::after{
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(10,13,16,.86) 0%, rgba(10,13,16,.22) 34%, rgba(10,13,16,.74) 74%, var(--ink) 100%),
    linear-gradient(90deg, rgba(10,13,16,.72) 0%, rgba(10,13,16,0) 62%);
}
.hero-grid{
  position:absolute; inset:0; opacity:.5; pointer-events:none;
  background-image:linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size:clamp(60px,7vw,110px) 100%;
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent);
  mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent);
}
.hero-in{ position:relative; width:100%; }
@media (max-width:560px){ .hide-s{ display:none; } }
.hero-eyebrow{ display:flex; flex-wrap:wrap; align-items:center; gap:14px; margin-bottom:clamp(20px,3vw,34px); }
.dot{
  width:7px; height:7px; border-radius:50%; background:var(--signal); flex:none;
  box-shadow:0 0 0 0 rgba(255,90,31,.6); animation:pulse 2.8s infinite;
}
@keyframes pulse{ 70%{ box-shadow:0 0 0 12px rgba(255,90,31,0);} 100%{ box-shadow:0 0 0 0 rgba(255,90,31,0);} }
h1{
  margin:0; font-weight:600; letter-spacing:-.035em; line-height:1.02;
  font-size:clamp(38px,7.2vw,104px); max-width:16ch; text-wrap:balance;
}
h1 .thin{ color:var(--text-dim); font-weight:300; }
.hero p{ margin:clamp(22px,3vw,32px) 0 0; max-width:56ch; color:#c3ccd4; font-size:clamp(16px,1.6vw,20px); }
.hero-meta{
  margin-top:clamp(30px,4vw,52px); display:flex; flex-wrap:wrap; gap:10px 0;
  border-top:1px solid rgba(255,255,255,.14); padding-top:18px;
}
.hero-meta span{ flex:1 1 190px; }
.hero-meta span::before{ content:"- "; color:var(--signal); }

/* ---------- Leistungen ---------- */
.cards{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:1px;
  background:var(--line-soft); border:1px solid var(--line-soft);
}
@media (min-width:1000px){ .cards{ grid-template-columns:repeat(3,1fr); } }
.card{
  background:var(--ink); padding:clamp(26px,3vw,40px); position:relative;
  transition:background .35s ease; min-height:260px; display:flex; flex-direction:column;
}
.card:hover{ background:var(--ink-2); }
.card .num{ font-family:var(--mono); font-size:11px; color:var(--text-faint); letter-spacing:.16em; }
.card h3{ margin:26px 0 12px; font-size:20px; font-weight:600; letter-spacing:-.01em; }
.card p{ margin:0; color:var(--text-dim); font-size:15.5px; }
.card .ico{ margin-top:auto; padding-top:26px; color:var(--signal); opacity:.8; }
.card .ico svg{ width:44px; height:44px; }

/* ---------- Messprinzip ---------- */
.split{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(340px,1fr));
  gap:clamp(30px,5vw,70px); align-items:start;
}
.figure{ border:1px solid var(--line-soft); background:var(--ink-2); }
.figure .cap{
  padding:14px 18px; border-top:1px solid var(--line-soft);
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
}
.figure svg.diagram, .figure canvas{ display:block; width:100%; height:auto; }
.scrollx{ overflow-x:auto; -webkit-overflow-scrolling:touch; }
@media (max-width:760px){
  .scrollx svg.diagram{ min-width:660px; }
}
canvas#radargram{ aspect-ratio:16/7; }
.stack > * + *{ margin-top:clamp(24px,3vw,34px); }

/* ---------- Geschäftsfelder ----------
   Zwei getrennte Bereiche: Geosondierung (Signalorange) und
   Ökologische Baubegleitung (Laubgrün). Die Umfärbung passiert über
   --signal, damit sämtliche Akzente im Bereich automatisch mitziehen. */
.field-2{ --signal:var(--leaf); }

.fieldbar{
  padding:clamp(46px,6vw,74px) 0 clamp(40px,5vw,60px);
  border-top:2px solid var(--signal);
  background:linear-gradient(180deg, rgba(255,255,255,.035), transparent 70%);
}
.fieldbar .wrap{ display:grid; grid-template-columns:minmax(0,7.5rem) minmax(0,1fr);
  gap:clamp(16px,4vw,48px); align-items:start; }
@media (max-width:700px){ .fieldbar .wrap{ grid-template-columns:1fr; gap:14px; } }
/* Farbmarke statt Beschriftung – das Geschäftsfeld erschließt sich über
   Farbe, Trennlinie und Überschrift */
.tag-field{
  display:block; width:34px; height:2px; background:var(--signal); margin-top:1.1em;
}
@media (max-width:700px){ .tag-field{ margin-top:0; } }
.fieldbar h2{
  margin:0; font-size:clamp(30px,5.2vw,62px); letter-spacing:-.03em; line-height:1.02;
  max-width:18ch;
}
.fieldbar p{ margin:20px 0 0; max-width:58ch; color:var(--text-dim); font-size:clamp(16px,1.5vw,19px); }
.fieldbar + .sec{ border-top:0; padding-top:clamp(30px,4vw,56px); }

/* Ökologische Baubegleitung: Bildspalte bewusst schmaler als der Text */
@media (min-width:1000px){
  .eco-leistungen .split{ grid-template-columns:minmax(0,1.6fr) minmax(0,1fr); }
}
.eco-leistungen .stack{ max-width:400px; }
.eco-leistungen .stack > * + *{ margin-top:26px; }

/* Navigation: die beiden Geschäftsfelder sind die oberste Ebene */
.nav-label{ color:var(--text-faint); opacity:.75; }
.nav-label::after{ content:""; }
.nav-field{ display:inline-flex; align-items:center; gap:8px; }
.nav-field .mk{
  width:7px; height:7px; border-radius:2px; background:var(--signal); flex:none;
  transition:transform .3s ease;
}
.nav-field:hover .mk{ transform:scale(1.5); }
.nav-sep{ width:1px; height:16px; background:var(--line); flex:none; }
.nav-eco .mk{ background:var(--leaf); }
.nav-eco::after{ background:var(--leaf) !important; }
.nav-eco:hover{ color:var(--leaf) !important; }
@media (max-width:1080px){ .nav-label{ display:none; } }
@media (max-width:900px){ .nav-field{ display:none; } .nav-sep{ display:none; } }

/* Sprungmarken innerhalb eines Geschäftsfelds */
.subnav{ display:flex; flex-wrap:wrap; gap:8px; margin-top:clamp(22px,3vw,32px); }
.subnav a{
  text-decoration:none; color:var(--text-dim); border:1px solid var(--line-soft);
  padding:8px 14px; border-radius:2px; transition:border-color .25s, color .25s, background .25s;
}
.subnav a:hover{ color:var(--text); border-color:var(--signal); background:rgba(255,255,255,.03); }

/* Hero: beide Geschäftsfelder als Einstieg */
.hero-fields{
  margin-top:clamp(28px,4vw,46px); display:grid; gap:1px;
  grid-template-columns:repeat(auto-fit,minmax(270px,1fr));
  background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.14);
  max-width:860px;
}
.hero-field{
  position:relative; display:block; text-decoration:none; padding:22px 26px 24px;
  background:rgba(10,13,16,.72); transition:background .3s ease;
}
.hero-field::before{
  content:""; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--signal);
  transform:scaleY(.25); transform-origin:top; transition:transform .35s cubic-bezier(.16,1,.3,1);
}
.hero-field:hover{ background:rgba(10,13,16,.92); }
.hero-field:hover::before{ transform:scaleY(1); }
.hero-field b{
  display:block; margin:0 0 8px; font-size:clamp(17px,1.7vw,21px); font-weight:600;
  letter-spacing:-.015em; line-height:1.2; hyphens:auto; padding-right:28px;
}
.hero-field em{ display:block; font-style:normal; font-size:13.5px; color:var(--text-dim); line-height:1.5; }
.hero-field::after{
  content:"→"; position:absolute; right:22px; top:21px; color:var(--signal);
  opacity:0; transform:translateX(-6px); transition:opacity .3s, transform .3s;
}
.hero-field:hover::after{ opacity:1; transform:none; }

.deflist{ margin:0; }
.deflist div{
  padding:24px 0; border-top:1px solid var(--line-soft); display:grid;
  grid-template-columns:minmax(0,11rem) minmax(0,1fr); gap:8px clamp(14px,2.5vw,32px);
}
.deflist div:last-child{ border-bottom:1px solid var(--line-soft); }
.deflist dt{ font-weight:600; font-size:16.5px; }
.deflist dt small{
  display:block; font-family:var(--mono); font-size:10.5px; letter-spacing:.16em;
  text-transform:uppercase; color:var(--signal); margin-top:6px; font-weight:400;
}
.deflist dd{ margin:0; color:var(--text-dim); font-size:15.5px; }
@media (max-width:620px){ .deflist div{ grid-template-columns:1fr; } }

/* ---------- Ablauf ---------- */
.steps{ display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:clamp(20px,3vw,34px); }
.step figure{ margin:0; }
.step img{ width:100%; aspect-ratio:4/3; object-fit:cover; filter:saturate(.68) contrast(1.03) brightness(.88); }
.step .bar{ display:flex; align-items:center; gap:12px; margin:18px 0 12px; }
.step .bar i{ font-style:normal; font-family:var(--mono); font-size:11px; letter-spacing:.16em; color:var(--signal); }
.step .bar hr{ flex:1; border:0; border-top:1px solid var(--line); margin:0; }
.step h3{ margin:0 0 8px; font-size:18px; font-weight:600; }
.step p{ margin:0; color:var(--text-dim); font-size:15px; }

/* ---------- Bildband + Zitat ---------- */
.band{ position:relative; min-height:clamp(340px,52vw,520px); display:flex; align-items:center; overflow:hidden; }
.band img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  filter:saturate(.55) brightness(.5) contrast(1.06);
}
.band .wrap{ position:relative; }
.band blockquote{
  margin:0; max-width:22ch; font-size:clamp(24px,3.8vw,48px); line-height:1.14;
  letter-spacing:-.028em; font-weight:500; text-wrap:balance;
}
.band cite{ display:block; margin-top:24px; font-style:normal; color:#c3ced7; }

/* ---------- Einsatzbereiche ---------- */
.tags{ display:flex; flex-wrap:wrap; gap:10px; margin:0; padding:0; }
.tags li{
  list-style:none; border:1px solid var(--line); border-radius:999px; padding:9px 18px;
  font-size:14.5px; color:var(--text-dim);
}
.tags li::before{ content:"+ "; color:var(--signal); }

/* ---------- Kontakt ---------- */
#kontakt{ background:var(--paper); color:var(--paper-ink); }
#kontakt .mono{ color:#6a7078; }
#kontakt h2 em{ color:#8b9098; }
#kontakt .lead{ color:#464c53; }
.contact{ display:grid; grid-template-columns:repeat(auto-fit,minmax(290px,1fr)); gap:clamp(28px,4vw,56px); align-items:start; }
.contact-list{ margin:0; }
.contact-list div{ padding:18px 0; border-top:1px solid rgba(20,25,30,.14); }
.contact-list div:last-child{ border-bottom:1px solid rgba(20,25,30,.14); }
.contact-list dt{ font-family:var(--mono); font-size:10.5px; letter-spacing:.18em; text-transform:uppercase; color:#6a7078; }
.contact-list dd{ margin:7px 0 0; font-size:18px; }
.contact-list a{ text-decoration:none; border-bottom:1px solid rgba(20,25,30,.28); }
.contact-list a:hover{ border-bottom-color:var(--signal); color:#b8390d; }
.contact img{ width:100%; aspect-ratio:4/3; object-fit:cover; }
.contact figcaption{ margin-top:12px; }

/* ---------- Fuss / Recht ---------- */
footer{ background:var(--ink); padding:clamp(50px,7vw,90px) 0 40px; }
.legal{ display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:clamp(28px,4vw,60px); }
.legal h3{
  font-family:var(--mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase;
  color:var(--signal); margin:0 0 18px; font-weight:500;
}
.legal p{ margin:0 0 14px; color:var(--text-dim); font-size:14px; line-height:1.75; }
.legal a{ color:var(--text-dim); }
.legal a:hover{ color:var(--text); }
.footbar{
  margin-top:clamp(40px,6vw,70px); padding-top:24px; border-top:1px solid var(--line-soft);
  display:flex; flex-wrap:wrap; gap:14px 30px; justify-content:space-between;
}

/* ---------- Reveal ---------- */
.rv{
  opacity:0; transform:translateY(22px);
  transition:opacity .8s cubic-bezier(.16,1,.3,1), transform .8s cubic-bezier(.16,1,.3,1);
}
.rv.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  .rv{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
  .dot{ animation:none; }
}

/* ---------- Diagramm ---------- */
.diagram .sky{ fill:#131b22; }
.diagram .soil{ fill:#1e1811; }
.diagram .soil-2{ fill:#282016; }
.diagram .surface{ stroke:#5b6a76; stroke-width:1.6; }
.diagram .wave-out{ fill:none; stroke:var(--amber); stroke-width:1.5; stroke-dasharray:5 6; opacity:.9; }
.diagram .wave-back{ fill:none; stroke:#79e2ea; stroke-width:1.6; stroke-dasharray:3 6; opacity:.95; }
.diagram .obj{ fill:#3a2f22; stroke:var(--signal); stroke-width:1.6; }
.diagram .lbl{ font-family:var(--mono); font-size:11.5px; letter-spacing:.12em; text-transform:uppercase; fill:#a4b0ba; }
.diagram .lbl.hi{ fill:var(--signal); }
.diagram .tick{ stroke:#2a343d; stroke-width:1; }
.diagram .lead-line{ stroke:#3d4a55; stroke-width:1; }
.diagram .cart{ fill:#2b3138; stroke:#59646e; stroke-width:1.4; }
.diagram .cart-ant{ fill:var(--amber); }
@media (prefers-reduced-motion:no-preference){
  .diagram .wave-out{ animation:travel 3.4s linear infinite; }
  .diagram .wave-back{ animation:travel 3.4s linear infinite reverse; }
  @keyframes travel{ to{ stroke-dashoffset:-44; } }
}