/* =========================================================================
   Elektro Mustermann – Musterseite (Vollmers Digitalwerk)
   Technisch, nüchtern, kontraststark. Anthrazit + Signalgelb.
   Selbst gehostete Schriften (kein Google-CDN). Mobil zuerst.
   ========================================================================= */

/* ---- Schriften: Variable Fonts, ein File deckt die Schnitte ab ---------- */
@font-face{
  font-family:'Space Grotesk';font-style:normal;font-weight:300 700;font-display:swap;
  src:url('fonts/space-grotesk-v22-latin-wght.woff2') format('woff2');
}
@font-face{
  font-family:'Inter';font-style:normal;font-weight:100 900;font-display:swap;
  src:url('fonts/inter-v20-latin-wght.woff2') format('woff2');
}

:root{
  --anthracite:#17191c;
  --anthracite-2:#1f2228;
  --ink:#1c1e21;
  --yellow:#f5c400;
  --yellow-dk:#d9ad00;
  --grey:#f2f3f5;
  --white:#ffffff;
  --muted:#5a5f66;
  --muted-d:rgba(255,255,255,.72);
  --line:#e2e4e8;
  --line-d:rgba(255,255,255,.14);
  --display:'Space Grotesk',system-ui,-apple-system,'Segoe UI',sans-serif;
  --sans:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --radius:4px;
  --wrap:1180px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--display);font-weight:700;line-height:1.08;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul{list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;width:100%}

/* ---- Buttons ------------------------------------------------------------ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--display);font-weight:600;font-size:1rem;line-height:1;
  padding:14px 22px;border-radius:var(--radius);border:2px solid transparent;
  cursor:pointer;transition:background .15s,border-color .15s,color .15s,transform .15s}
.btn svg{flex:none}
.btn-primary{background:var(--yellow);color:var(--ink)}
.btn-primary:hover{background:var(--yellow-dk)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost-light:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-ghost-dark{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost-dark:hover{background:var(--ink);color:#fff}

/* ---- Musterband + Kopfzeile -------------------------------------------- */
.musterband{background:var(--anthracite);color:var(--muted-d);text-align:center;
  font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;padding:7px 14px;
  border-bottom:1px solid var(--line-d)}
.musterband b{color:var(--yellow)}

.site-header{position:sticky;top:0;z-index:60;background:var(--anthracite);border-bottom:1px solid var(--line-d)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:62px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;
  font-size:1.15rem;letter-spacing:.02em;color:#fff}
.logo .spark{width:22px;height:22px;flex:none}
.logo b{color:var(--yellow);font-weight:700}
.nav{display:flex;align-items:center;gap:26px}
.nav a{font-family:var(--sans);font-size:.95rem;font-weight:500;color:var(--muted-d);transition:color .15s}
.nav a:hover{color:#fff}
.nav .nav-call{display:inline-flex;align-items:center;gap:7px;color:var(--yellow);font-weight:600}
.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:38px;background:none;border:1px solid var(--line-d);border-radius:var(--radius);cursor:pointer}
.nav-toggle span{display:block;height:2px;width:20px;margin:0 auto;background:#fff;transition:.2s}
.site-header.open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.open .nav-toggle span:nth-child(2){opacity:0}
.site-header.open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---- Abschnitte allgemein ---------------------------------------------- */
section{padding:56px 0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--sans);
  font-size:.74rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--yellow-dk)}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--yellow)}
.section-head{max-width:34em;margin-bottom:34px}
.section-head h2{font-size:clamp(1.8rem,6vw,2.6rem);margin-top:12px}
.section-head p{color:var(--muted);margin-top:12px}

/* ---- Hero --------------------------------------------------------------- */
.hero{background:var(--anthracite);color:#fff;padding:0}
.hero-grid{display:grid;grid-template-columns:1fr;gap:0}
.hero-text{padding:52px 20px 44px;max-width:var(--wrap);margin:0 auto;width:100%}
.hero-text .eyebrow{color:var(--yellow)}
.hero h1{font-size:clamp(2.2rem,9vw,3.9rem);margin:20px 0 16px;letter-spacing:-.02em}
.hero h1 mark{background:none;color:var(--yellow)}
.hero-sub{font-size:1.1rem;color:var(--muted-d);max-width:32em;margin-bottom:28px}
.hero-buttons{display:flex;flex-wrap:wrap;gap:12px}
.hero-media{position:relative;min-height:280px}
.hero-media img{width:100%;height:100%;min-height:280px;object-fit:cover;border-top:3px solid var(--yellow)}

/* ---- Einstieg ----------------------------------------------------------- */
.intro{background:var(--white)}
.intro .wrap{max-width:900px}
.intro-text{font-size:clamp(1.15rem,3.4vw,1.5rem);font-family:var(--display);font-weight:500;
  line-height:1.32;letter-spacing:-.01em;color:var(--ink)}
.intro-text b{color:var(--ink)}
.intro-sub{color:var(--muted);margin-top:16px;max-width:44em}

/* ---- Leistungen --------------------------------------------------------- */
.leistungen{background:var(--grey)}
.cards{display:grid;grid-template-columns:1fr;gap:16px}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;transition:border-color .15s,transform .15s,box-shadow .15s}
.card:hover{border-color:#c9ccd2;transform:translateY(-3px);box-shadow:0 18px 34px -24px rgba(23,25,28,.4)}
.card .ico{width:48px;height:48px;display:flex;align-items:center;justify-content:center;
  background:var(--anthracite);border-radius:var(--radius);color:var(--yellow);margin-bottom:16px}
.card h3{font-size:1.15rem;margin-bottom:7px}
.card p{color:var(--muted);font-size:.94rem}

/* ---- Störungsdienst-Balken --------------------------------------------- */
.stoerung{background:var(--yellow);color:var(--ink)}
.stoerung .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;
  gap:8px 18px;padding:18px 20px;text-align:center}
.stoerung .lbl{font-family:var(--display);font-weight:700;font-size:1.05rem;
  display:inline-flex;align-items:center;gap:10px}
.stoerung a{font-family:var(--display);font-weight:700;font-size:1.25rem;color:var(--ink);
  text-decoration:none;white-space:nowrap}
.stoerung a:hover{text-decoration:underline}
.stoerung .hint{font-size:.85rem;color:rgba(28,30,33,.75);width:100%}

/* ---- Bildabschnitt / Vorteile ------------------------------------------ */
.vorteile .wrap{display:grid;grid-template-columns:1fr;gap:30px;align-items:center}
.vorteile-img{border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line)}
.vorteile-img img{width:100%;height:100%;object-fit:cover}
.checks{display:grid;gap:14px;margin-top:8px}
.checks li{display:flex;gap:13px;align-items:flex-start}
.checks .tick{flex:none;width:28px;height:28px;border-radius:var(--radius);background:var(--yellow);
  color:var(--ink);display:flex;align-items:center;justify-content:center;margin-top:2px}
.checks b{font-family:var(--display);font-weight:600;font-size:1.05rem;display:block}
.checks span.txt{color:var(--muted);font-size:.93rem}

/* ---- Ablauf ------------------------------------------------------------- */
.ablauf{background:var(--anthracite);color:#fff}
.ablauf .section-head h2{color:#fff}
.ablauf .eyebrow{color:var(--yellow)}
.steps{display:grid;grid-template-columns:1fr;gap:20px;list-style:none}
.step{background:var(--anthracite-2);border:1px solid var(--line-d);border-radius:var(--radius);padding:26px 22px}
.step .no{font-family:var(--display);font-weight:700;font-size:1.6rem;color:var(--yellow);
  width:52px;height:52px;border:2px solid var(--yellow);border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.step h3{font-size:1.15rem;margin-bottom:7px;color:#fff}
.step p{color:var(--muted-d);font-size:.94rem}

/* ---- Kontakt ------------------------------------------------------------ */
.kontakt{background:var(--grey)}
.kontakt .wrap{display:grid;grid-template-columns:1fr;gap:30px;align-items:start}
.kontakt form{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px}
.field{margin-bottom:15px}
.field label{display:block;font-family:var(--display);font-weight:600;font-size:.85rem;margin-bottom:6px}
.field input,.field textarea{width:100%;font-family:var(--sans);font-size:.96rem;color:var(--ink);
  background:var(--grey);border:1px solid var(--line);border-radius:var(--radius);padding:12px 13px;transition:border-color .15s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--yellow-dk);background:#fff}
.field textarea{min-height:120px;resize:vertical}
form .btn-primary{width:100%}
.form-note{font-size:.78rem;color:var(--muted);background:var(--grey);border:1px dashed #c8ccd2;
  border-radius:var(--radius);padding:10px 13px;margin-bottom:16px}
.form-danke{display:none;background:var(--anthracite);color:#fff;border-radius:var(--radius);padding:22px}
.form-danke b{font-family:var(--display);font-size:1.15rem;display:block;margin-bottom:6px}
.form-danke p{color:var(--muted-d);font-size:.92rem}
.form-danke.on{display:block}
form.sent .form-body{display:none}

.kinfo .krow{display:flex;gap:13px;align-items:flex-start;margin-bottom:18px}
.kinfo .krow .ico{flex:none;width:42px;height:42px;border-radius:var(--radius);background:var(--anthracite);
  color:var(--yellow);display:flex;align-items:center;justify-content:center}
.kinfo .krow b{font-family:var(--display);font-weight:600;font-size:1rem;display:block}
.kinfo .krow span.txt{color:var(--muted);font-size:.93rem}
.kinfo .krow a{color:var(--ink)}
.kinfo .krow a:hover{color:var(--yellow-dk)}
.oeff{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-top:6px}
.oeff h3{font-size:1.05rem;margin-bottom:12px}
.oeff .orow{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-bottom:1px solid var(--line);font-size:.92rem}
.oeff .orow:last-child{border-bottom:none}
.oeff .orow span:last-child{font-family:var(--display);font-weight:600;color:var(--ink)}

/* ---- Footer ------------------------------------------------------------- */
.site-footer{background:var(--anthracite);color:var(--muted-d);padding:44px 0 26px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:22px;margin-bottom:26px}
.foot-brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:1.1rem;color:#fff}
.foot-brand b{color:var(--yellow)}
.foot-col h4{font-family:var(--display);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:#fff;margin-bottom:10px}
.foot-col p,.foot-col a{font-size:.9rem;line-height:1.9;display:block}
.foot-col a:hover{color:#fff}
.foot-bottom{border-top:1px solid var(--line-d);padding-top:18px;font-size:.8rem;
  display:flex;flex-wrap:wrap;gap:8px 16px;justify-content:space-between}
.foot-bottom a{text-decoration:underline}
.foot-bottom a:hover{color:#fff}
.foot-legal{display:flex;gap:16px;flex-wrap:wrap}

/* =========================================================================
   MOBIL ZUERST → ab hier größere Viewports
   ========================================================================= */
/* Menü auf dem Handy einklappbar */
@media(max-width:820px){
  .nav{position:fixed;inset:62px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--anthracite);border-bottom:1px solid var(--line-d);
    padding:8px 20px 18px;transform:translateY(-140%);transition:transform .25s;z-index:55}
  .site-header.open .nav{transform:translateY(0)}
  .nav a{padding:13px 4px;border-bottom:1px solid var(--line-d);font-size:1rem}
  .nav .nav-call{border-bottom:none;padding-top:16px}
}
@media(min-width:821px){
  .nav-toggle{display:none}
}
@media(min-width:720px){
  section{padding:76px 0}
  .wrap{padding:0 32px}
  .cards{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(3,1fr)}
  .vorteile .wrap{grid-template-columns:1fr 1fr;gap:44px}
  .kontakt .wrap{grid-template-columns:1.1fr .9fr;gap:44px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr}
  .hero-text{padding:92px 32px 84px}
}
@media(min-width:960px){
  .hero .wrap-none{max-width:none}
  .hero-grid{grid-template-columns:1.05fr .95fr;min-height:540px}
  .hero-text{display:flex;flex-direction:column;justify-content:center;padding:90px 48px 90px 0}
  .hero-inner{max-width:600px;margin-left:auto;padding-left:32px}
  .hero-media img{min-height:540px}
  .cards{grid-template-columns:repeat(3,1fr)}
}