/* ============================================================
   UNTERNEHMENSFIREWALL.DE — modernisiertes Redesign
   Nah am Original (statischer Hero, Bildkacheln, Gründe-Raster,
   roter Fragen-Streifen, große Preistabelle) — voll responsiv.
   Markenfarbe: ROT. BICOS-Blau (#0b5394) nur bei bicos.de-Bezug.
   Schrift: Open Sans, lokal (DSGVO-konform, gleiche Dateien wie bicos.de).
   ============================================================ */

@font-face{font-family:"Open Sans";font-style:normal;font-weight:400;font-display:swap;src:url("fonts/open-sans-v44-latin-regular.woff2") format("woff2")}
@font-face{font-family:"Open Sans";font-style:italic;font-weight:400;font-display:swap;src:url("fonts/open-sans-v44-latin-italic.woff2") format("woff2")}
@font-face{font-family:"Open Sans";font-style:normal;font-weight:500;font-display:swap;src:url("fonts/open-sans-v44-latin-500.woff2") format("woff2")}
@font-face{font-family:"Open Sans";font-style:normal;font-weight:600;font-display:swap;src:url("fonts/open-sans-v44-latin-600.woff2") format("woff2")}
@font-face{font-family:"Open Sans";font-style:normal;font-weight:700;font-display:swap;src:url("fonts/open-sans-v44-latin-700.woff2") format("woff2")}

:root{
  --rot:#c8102e; --rot-dunkel:#9a0b22; --rot-hell:#fbebee; --rot-glow:rgba(200,16,46,.30);
  --bicos:#0b5394; --bicos-dunkel:#073b6b; --bicos-hell:#e8f1f9;
  --tinte:#1c2126; --tinte-2:#4a4f55; --anthrazit:#20262c; --anthrazit-2:#2b333a;
  --papier:#ffffff; --papier-2:#f4f6f8; --linie:#e2e6ea;
  --hell:#f3f5f7; --hell-2:#9aa5b0;
  --font:"Open Sans","Segoe UI",Arial,Helvetica,sans-serif;
  --wrap:1160px; --radius:8px; --schatten:0 8px 26px rgba(20,26,32,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
body{margin:0;font-family:var(--font);font-size:1rem;line-height:1.65;color:var(--tinte);background:var(--papier);-webkit-text-size-adjust:100%}
/* Wasserzeichen: sehr helles graues BICOS-Logo, fest mittig hinter dem Inhalt.
   Als eigenes Element .wasserzeichen (siehe HTML) – robust in allen Browsern
   und unabhängig von der Seiten-URL. */
.wasserzeichen{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);
  width:clamp(280px,42vw,600px);aspect-ratio:553 / 196;z-index:0;pointer-events:none;opacity:.18;
  user-select:none;
  background:url("../bilder/logo-wasserzeichen-grau.png") center / contain no-repeat}
.wasserzeichen img{width:100%;height:auto;display:block;opacity:0}
/* Inhalt liegt über dem Wasserzeichen */
.site-header,main,.site-footer{position:relative;z-index:1}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--rot)} a:hover{color:var(--rot-dunkel)}
:focus-visible{outline:3px solid var(--rot);outline-offset:2px;border-radius:4px}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:1.25rem}

h1,h2,h3{margin:0 0 .5em;line-height:1.15;font-weight:700}
h2{font-size:clamp(1.5rem,3.4vw,2.15rem)}
h3{font-size:1.2rem}
.eyebrow{font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;color:var(--rot);font-weight:700;margin:0 0 .7rem}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--anthrazit);border-bottom:3px solid var(--rot);color:var(--hell)}
.site-header .wrap{display:flex;align-items:center;gap:1rem;min-height:66px}
.brand{display:flex;align-items:center;gap:.65rem;color:#fff;text-decoration:none;font-size:1.15rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em}
.brand img{width:34px;height:34px}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--anthrazit-2);color:var(--hell);border-radius:6px;padding:.45rem .6rem;font-size:1.1rem;line-height:1;cursor:pointer}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:.25rem}
.main-nav a{color:var(--hell-2);text-decoration:none;font-weight:500;font-size:.95rem;padding:.5rem .75rem;border-radius:6px}
.main-nav a:hover,.main-nav a[aria-current=page]{color:#fff;background:var(--anthrazit-2)}
.main-nav .nav-cta{color:#fff;background:var(--rot);font-weight:600}
.main-nav .nav-cta:hover{background:var(--rot-dunkel)}
@media (max-width:820px){
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;background:var(--anthrazit);border-bottom:3px solid var(--rot);padding:.75rem 1.25rem 1.25rem;gap:.35rem}
  .main-nav.open{display:flex}
  .main-nav a{padding:.8rem .7rem;font-size:1.05rem}
}

/* ---------- Hero (statisch, wie Original) ---------- */
.hero{position:relative;background:var(--anthrazit);color:#fff;overflow:hidden;text-align:center}
.hero::before{content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 50% -20%,var(--rot-glow),transparent 60%),
    linear-gradient(160deg,#171c21 0%,#20262c 55%,#2a1417 100%);
}
.hero .grid-bg{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 88%);
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 88%)}
.hero .wrap{position:relative;padding-block:clamp(3.5rem,9vw,6rem)}
.hero .shield{width:64px;height:64px;color:var(--rot);margin:0 auto 1.4rem}
.hero h1{font-size:clamp(2rem,6vw,3.6rem);text-transform:uppercase;letter-spacing:.02em;margin-bottom:.5rem}
.hero h1 span{color:var(--rot)}
.hero .sub{font-size:clamp(1.05rem,2.4vw,1.4rem);color:var(--hell-2);font-weight:500;margin:0 auto 2rem;max-width:40rem}
.hero .actions{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center}

.btn{display:inline-block;font:inherit;font-weight:600;text-decoration:none;text-align:center;padding:.85rem 1.7rem;border-radius:var(--radius);border:2px solid transparent;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.btn-primary{background:var(--rot);color:#fff}
.btn-primary:hover{background:var(--rot-dunkel);color:#fff}
.btn-ghost{border-color:var(--hell-2);color:#fff;background:transparent}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-outline{border-color:var(--rot);color:var(--rot);background:transparent}
.btn-outline:hover{background:var(--rot-hell);color:var(--rot-dunkel)}

/* ---------- Schutz-Kacheln (3 Bildkacheln) ---------- */
.section{padding-block:clamp(3rem,7vw,4.75rem)}
.section.alt{background:var(--papier-2)}
.section-head{max-width:48rem;margin:0 auto 2.25rem;text-align:center}
.section-head.left{margin-inline:0;text-align:left}
.lead{font-size:1.08rem;color:var(--tinte-2)}

.schutz{display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.schutz-karte{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--schatten);background:var(--anthrazit);min-height:230px;display:flex;align-items:flex-end;color:#fff}
.schutz-karte .bild{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02);transition:transform .5s}
.schutz-karte:hover .bild{transform:scale(1.08)}
.schutz-karte::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(20,10,12,.88) 0%,rgba(20,10,12,.35) 55%,rgba(20,10,12,.15) 100%)}
.schutz-karte .txt{position:relative;z-index:2;padding:1.4rem 1.5rem;width:100%}
.schutz-karte .icon{width:34px;height:34px;color:var(--rot);margin-bottom:.5rem}
.schutz-karte h3{margin:0;font-size:1.25rem;text-transform:uppercase;letter-spacing:.02em}
.schutz-karte .bar{position:absolute;left:0;bottom:0;height:4px;width:100%;background:var(--rot);z-index:3}

/* ---------- Intro-Absatz ---------- */
.intro .section-head{max-width:none}
.intro h2{max-width:none}
.intro p{font-size:1.1rem;color:var(--tinte-2);max-width:none;text-align:left}

/* ---------- Gründe ---------- */
.gruende{display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grund{background:var(--papier);border:1px solid var(--linie);border-left:4px solid var(--rot);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--schatten)}
.grund h3{color:var(--tinte);font-size:1.12rem;text-transform:uppercase;letter-spacing:.01em}
.grund p{margin:0;color:var(--tinte-2)}
/* einziger bicos-Bezug im Gründe-Raster → blau */
.grund.grund-bicos{border-left-color:var(--bicos)}
.bicos-chip{display:inline-block;background:var(--bicos);color:#fff;font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:.18rem .5rem;border-radius:4px;margin-bottom:.55rem}
a.bicos-link{color:var(--bicos);font-weight:600}
a.bicos-link:hover{color:var(--bicos-dunkel)}

/* ---------- Fragen-Streifen (rot) ---------- */
.fragen{background:linear-gradient(120deg,var(--rot-dunkel),var(--rot));color:#fff;text-align:center}
.fragen .wrap{padding-block:clamp(2.5rem,6vw,3.5rem)}
.fragen h2{color:#fff;text-transform:uppercase}
.fragen h2 span{display:block;font-weight:400;font-size:.62em;letter-spacing:.02em;margin-top:.2rem;color:rgba(255,255,255,.9)}
.fragen .btn{background:#fff;color:var(--rot);font-weight:700;margin-top:1.25rem}
.fragen .btn:hover{background:var(--anthrazit);color:#fff}

/* ---------- Preise: Vergleichstabelle ---------- */
.preise-intro{max-width:52rem;margin:0 auto 2rem;text-align:center}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

.vergleich-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--schatten);-webkit-overflow-scrolling:touch}
.vergleich{width:100%;border-collapse:collapse;background:var(--papier);min-width:720px}
.vergleich th,.vergleich td{padding:.7rem 1rem;text-align:center;border-bottom:1px solid var(--linie);font-size:.92rem;vertical-align:middle}

/* Kopfzeile mit Paketnamen */
.vergleich thead th{background:var(--anthrazit);color:#fff;font-size:1.05rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;border-bottom:none;position:relative}
.vergleich thead th.leist-kopf{background:var(--anthrazit-2);text-align:left;font-size:.78rem;letter-spacing:.08em;color:var(--hell-2)}
.vergleich thead th.top{background:var(--rot)}
.vergleich thead .flag{display:inline-block;background:#fff;color:var(--rot);font-size:.58rem;font-weight:700;letter-spacing:.1em;padding:.15rem .4rem;border-radius:3px;vertical-align:middle;margin-left:.4rem}

/* Leistungszeilen: Bezeichnung links, Häkchen in den Spalten */
.vergleich tbody th[scope=row]{text-align:left;font-weight:400;color:var(--tinte);width:38%;min-width:230px}
.vergleich td.ok{position:relative}
.vergleich td.ok::before{content:"";display:inline-block;width:1.25rem;height:1.25rem;border-radius:50%;background:var(--rot);
  -webkit-mask:no-repeat center/.8rem url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E");
  mask:no-repeat center/.8rem url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E")}
.vergleich td.nein{color:transparent}

/* hervorgehobene Business-Spalte */
.vergleich td.top{background:var(--rot-hell)}
.vergleich tbody th[scope=row]{background:var(--papier)}

/* Preisblock */
.vergleich .preis-block th[scope=row]{font-weight:600;color:var(--tinte);width:38%}
.vergleich .preis-block td{font-weight:700;white-space:nowrap}
.vergleich .preis-titel th,.vergleich .preis-titel td{background:var(--papier-2);text-transform:uppercase;font-size:.75rem;letter-spacing:.06em;color:var(--tinte-2);font-weight:700}
.vergleich .preis-titel td.top{background:var(--rot-hell);color:var(--rot-dunkel)}
.vergleich .einrichtung th,.vergleich .einrichtung td{font-size:.85rem;color:var(--tinte-2);font-weight:400}
.vergleich .einrichtung td{font-weight:600}

/* Button-Zeile */
.vergleich tfoot td{border-bottom:none;padding:1.1rem 1rem 1.4rem}
.vergleich tfoot td.top{background:var(--rot-hell)}
.vergleich tfoot .btn{width:100%;padding:.7rem 1rem;font-size:.92rem}
.vergleich tfoot td.leist-kopf{background:var(--papier)}

.scroll-hint{display:none;text-align:center;font-size:.82rem;color:var(--tinte-2);margin-top:.6rem}
@media (max-width:760px){.scroll-hint{display:block}}

.smallprint{font-size:.85rem;color:var(--tinte-2);margin-top:1.5rem;text-align:center}

/* ---------- BICOS-Band (blauer Bezug zur Hauptseite) ---------- */
.bicos-band{background:linear-gradient(120deg,var(--bicos-dunkel),var(--bicos) 60%,#1573c7);color:#fff}
.bicos-band .wrap{padding-block:1.5rem;display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1.5rem;justify-content:space-between}
.bicos-band p{margin:0;color:#dce9f6}
.bicos-band strong{color:#fff}
.bicos-band .btn{background:#fff;color:var(--bicos-dunkel);padding:.6rem 1.2rem}
.bicos-band .btn:hover{background:var(--bicos-hell);color:var(--bicos-dunkel)}

/* ---------- Innenseiten ---------- */
.page-head{background:var(--anthrazit);color:var(--hell);border-bottom:3px solid var(--rot)}
.page-head .wrap{padding-block:clamp(2.25rem,5vw,3.25rem)}
.breadcrumb{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--hell-2);margin:0 0 .5rem}
.breadcrumb a{color:var(--hell-2);text-decoration:none}
.breadcrumb a:hover{color:#fff}
.page-head h1{font-size:clamp(1.8rem,5vw,2.8rem);text-transform:uppercase;margin:0}
.prose{max-width:50rem}
.prose h2{font-size:1.4rem;margin-top:2.5rem;text-transform:uppercase;letter-spacing:.02em}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:1.75rem;font-size:1.08rem}
.prose p,.prose li{color:var(--tinte-2)}
.prose strong{color:var(--tinte)}

/* ---------- Formular ---------- */
.form-grid{max-width:44rem;display:grid;gap:1.1rem}
.field label{display:block;font-weight:600;margin-bottom:.35rem;font-size:.95rem}
.field .req{color:var(--rot);font-weight:400}
.field input,.field select,.field textarea{width:100%;font:inherit;color:var(--tinte);background:var(--papier);border:1px solid var(--linie);border-radius:8px;padding:.75rem .9rem}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--rot);box-shadow:0 0 0 3px var(--rot-glow)}
.field textarea{min-height:10rem;resize:vertical}
.field.hp,.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.captcha-field{background:var(--rot-hell);border:1px solid var(--linie);border-left:4px solid var(--rot);border-radius:8px;padding:1rem 1.1rem}
.captcha-field input{max-width:9rem}
.captcha-field strong{font-size:1.1em}
.form-status{padding:.9rem 1.1rem;border-radius:8px;margin-bottom:1.5rem;font-weight:600}
.form-status.ok{background:#e7f6ec;border:1px solid #34a853;color:#1e7e34}
.form-status.fehler{background:var(--rot-hell);border:1px solid var(--rot);color:var(--rot-dunkel)}
.form-note{font-size:.88rem;color:var(--tinte-2)}

/* ---------- Footer ---------- */
.site-footer{background:var(--anthrazit);color:var(--hell-2);font-size:.95rem}
.site-footer .wrap{padding-block:2.25rem;display:flex;flex-wrap:wrap;gap:1rem 2.5rem;align-items:center;justify-content:space-between}
.site-footer a{color:var(--hell-2);text-decoration:none}
.site-footer a:hover{color:#fff}
.site-footer a.bicos-link{color:#9fc1e0}
.site-footer a.bicos-link:hover{color:#fff}
.footer-nav{display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;list-style:none;margin:0;padding:0}
.footer-tel{font-family:var(--font)}
@media (max-width:600px){
  .site-footer .wrap{flex-direction:column;align-items:flex-start}
  .bicos-band .wrap{flex-direction:column;align-items:flex-start}
}