/* ============================================================
   telefon-anlage.com – Elegantes B2B-Design
   Navy / Weiß / Akzentblau · keine externen Fonts/CDNs (DSGVO)
   ============================================================ */

:root{
  --navy:#0b1a30;
  --navy-2:#10233f;
  --navy-3:#16304f;
  --ink:#152238;
  --muted:#5d6b80;
  --muted-light:#93a5c0;
  --line:#e3e8ef;
  --line-dark:rgba(255,255,255,.1);
  --paper:#f5f7fa;
  --white:#ffffff;
  --blue:#2f6fe4;
  --blue-dark:#2358bd;
  --blue-soft:#e9f0fc;
  --gold:#c8a961;
  --green:#1d9d64;
  --green-soft:#e7f6ef;
  --red:#c0392b;
  --red-soft:#fdeeec;
  --radius:14px;
  --maxw:1140px;
  --shadow:0 2px 6px rgba(11,26,48,.06),0 16px 40px rgba(11,26,48,.10);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--white);color:var(--ink);line-height:1.65}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:100;background:rgba(11,26,48,.96);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-dark);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.08rem;color:#fff;letter-spacing:.01em}
.logo-badge{
  width:38px;height:38px;border-radius:9px;background:var(--blue);
  display:grid;place-items:center;color:#fff;flex-shrink:0;
}
.logo span em{font-style:normal;color:var(--muted-light)}
.nav-links{display:flex;gap:32px;align-items:center}
.nav-links a{color:var(--muted-light);font-weight:600;font-size:.94rem;transition:color .2s}
.nav-links a:hover{color:#fff}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:9px;border:0;cursor:pointer;
  font-family:var(--font);font-weight:700;font-size:1rem;letter-spacing:.01em;
  transition:background .18s,border-color .18s,color .18s,transform .1s;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark)}
.btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-outline:hover{border-color:#fff}
.btn-big{padding:17px 38px;font-size:1.06rem}
.btn-nav{padding:11px 22px;font-size:.92rem}

/* ---------- Hero (dunkel) ---------- */
.hero{
  background:
    radial-gradient(900px 480px at 80% -10%,rgba(47,111,228,.28) 0%,transparent 60%),
    linear-gradient(180deg,var(--navy) 0%,var(--navy-2) 100%);
  color:#fff;padding:96px 0 150px;position:relative;
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--gold);font-weight:700;font-size:.82rem;
  text-transform:uppercase;letter-spacing:.16em;margin-bottom:22px;
}
.hero-eyebrow::before{content:"";width:32px;height:1px;background:var(--gold)}
.hero h1{
  font-size:clamp(2.2rem,4.8vw,3.4rem);font-weight:800;line-height:1.14;
  letter-spacing:-.02em;margin-bottom:22px;
}
.hero p.sub{font-size:clamp(1.02rem,1.8vw,1.18rem);color:var(--muted-light);max-width:560px;margin-bottom:36px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.hero-note{color:var(--muted-light);font-size:.88rem}

/* Hero-Panel (CSS-Mockup) */
.panel{
  background:rgba(255,255,255,.055);border:1px solid var(--line-dark);
  border-radius:18px;padding:26px;backdrop-filter:blur(6px);
  box-shadow:0 30px 70px rgba(0,0,0,.35);
}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.panel-head b{font-size:.95rem;font-weight:700;color:#fff}
.panel-live{
  display:inline-flex;align-items:center;gap:7px;font-size:.75rem;font-weight:700;
  color:#7fd4a8;background:rgba(29,157,100,.16);padding:5px 12px;border-radius:999px;
}
.panel-live i{width:7px;height:7px;border-radius:50%;background:#7fd4a8;font-style:normal}
.panel-row{
  display:flex;align-items:center;gap:14px;padding:13px 12px;border-radius:11px;
  border:1px solid transparent;
}
.panel-row + .panel-row{margin-top:6px}
.panel-row.active{background:rgba(47,111,228,.14);border-color:rgba(47,111,228,.35)}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;font-weight:700;font-size:.82rem;color:#fff;
}
.av-1{background:#2f6fe4}.av-2{background:#7c5cd6}.av-3{background:#1d9d64}.av-4{background:#c8a961}
.panel-row .who{flex:1;min-width:0}
.panel-row .who b{display:block;font-size:.88rem;color:#fff;font-weight:600}
.panel-row .who span{font-size:.76rem;color:var(--muted-light)}
.pill{font-size:.72rem;font-weight:700;padding:4px 11px;border-radius:999px;white-space:nowrap}
.pill-call{background:rgba(29,157,100,.18);color:#7fd4a8}
.pill-hold{background:rgba(200,169,97,.16);color:#e3c98d}
.pill-off{background:rgba(255,255,255,.08);color:var(--muted-light)}
.panel-foot{
  display:flex;justify-content:space-between;margin-top:20px;padding-top:18px;
  border-top:1px solid var(--line-dark);
}
.panel-foot div{text-align:center;flex:1}
.panel-foot b{display:block;font-size:1.25rem;font-weight:800;color:#fff}
.panel-foot span{font-size:.72rem;color:var(--muted-light);text-transform:uppercase;letter-spacing:.08em}

/* ---------- Stats (überlappend) ---------- */
.stats-wrap{margin-top:-64px;position:relative;z-index:5;padding-bottom:0}
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
}
.stat{padding:30px 20px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:1.85rem;font-weight:800;color:var(--navy);letter-spacing:-.02em}
.stat span{color:var(--muted);font-size:.9rem;font-weight:500}

/* ---------- Sections ---------- */
section{padding:96px 0}
.section-alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{background:linear-gradient(180deg,var(--navy-2),var(--navy));color:#fff}
.section-head{max-width:700px;margin:0 auto 56px;text-align:center}
.section-head.left{text-align:left;margin:0 0 48px}
.kicker{
  display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:.8rem;
  text-transform:uppercase;letter-spacing:.16em;color:var(--blue);margin-bottom:14px;
}
.section-dark .kicker{color:var(--gold)}
h2{font-size:clamp(1.75rem,3.6vw,2.5rem);font-weight:800;letter-spacing:-.02em;line-height:1.15;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:1.08rem}
.section-dark .section-head p{color:var(--muted-light)}

/* ---------- Feature-Grid ---------- */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 28px;transition:box-shadow .22s,transform .22s,border-color .22s;
}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#d3dce8}
.card .icon{
  width:48px;height:48px;border-radius:11px;background:var(--navy);color:#fff;
  display:grid;place-items:center;margin-bottom:20px;
}
.card h3{font-size:1.13rem;font-weight:700;margin-bottom:9px}
.card p{color:var(--muted);font-size:.96rem}

/* ---------- Vergleich (dunkle Sektion) ---------- */
.versus{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.vs-col{border-radius:var(--radius);padding:36px 30px}
.vs-old{background:rgba(255,255,255,.045);border:1px solid var(--line-dark)}
.vs-new{background:var(--white);color:var(--ink);box-shadow:0 24px 60px rgba(0,0,0,.35)}
.vs-col h3{font-size:1.15rem;font-weight:800;margin-bottom:20px}
.vs-old h3{color:var(--muted-light)}
.vs-new h3{color:var(--navy)}
.vs-col ul{list-style:none}
.vs-col li{padding:8px 0;display:flex;gap:12px;align-items:flex-start;font-size:.97rem}
.vs-old li{color:var(--muted-light)}
.vs-new li{color:var(--ink)}
.vs-x{color:#e08a7e;font-weight:800;flex-shrink:0}
.vs-new .vs-check{color:var(--green);font-weight:800;flex-shrink:0}
.vs-check{color:var(--green);font-weight:800;flex-shrink:0}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 28px;position:relative;
}
.step-num{
  position:absolute;top:34px;right:28px;font-size:2.6rem;font-weight:800;
  color:var(--blue-soft);line-height:1;
}
.step h3{font-size:1.13rem;font-weight:700;margin-bottom:9px;position:relative}
.step p{color:var(--muted);font-size:.96rem;position:relative}
.step-icon{
  width:48px;height:48px;border-radius:11px;background:var(--blue-soft);color:var(--blue);
  display:grid;place-items:center;margin-bottom:20px;
}

/* ---------- FAQ ---------- */
.faq{max-width:780px;margin:0 auto}
details{background:var(--white);border:1px solid var(--line);border-radius:12px;margin-bottom:12px}
details[open]{border-color:#c8d3e1;box-shadow:var(--shadow)}
summary{
  cursor:pointer;padding:19px 24px;font-weight:700;font-size:1.02rem;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px;
}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.4rem;font-weight:300;color:var(--blue);flex-shrink:0;transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details .answer{padding:0 24px 21px;color:var(--muted)}

/* ---------- Lead-Bereich (dunkel) ---------- */
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.cta-inner h2{color:#fff;margin-bottom:16px}
.cta-inner .promise{color:var(--muted-light);font-size:1.05rem;margin-bottom:28px}
.trust{list-style:none}
.trust li{padding:7px 0;display:flex;gap:12px;font-weight:600;font-size:.97rem;color:#e8edf5}
.trust .vs-check{color:#7fd4a8}
.cta-contactline{
  margin-top:34px;padding-top:26px;border-top:1px solid var(--line-dark);
  color:var(--muted-light);font-size:.92rem;
}

.form-card{background:var(--white);border-radius:var(--radius);padding:36px;box-shadow:0 24px 60px rgba(0,0,0,.35)}
.form-card h3{font-size:1.25rem;font-weight:800;margin-bottom:22px;color:var(--navy)}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:15px}
label{display:block;font-weight:600;font-size:.86rem;margin-bottom:6px;color:var(--ink)}
input,select,textarea{
  width:100%;padding:13px 15px;border-radius:8px;
  border:1px solid #c6d0dd;background:#fff;color:var(--ink);
  font-family:var(--font);font-size:1rem;transition:border-color .15s,box-shadow .15s;
}
input::placeholder{color:#9aa8ba}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,111,228,.16);
}
.form-note{font-size:.79rem;color:var(--muted);margin-top:13px}
.form-note a{text-decoration:underline}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}

/* ---------- Meldungen ---------- */
.alert{padding:15px 19px;border-radius:10px;font-weight:600;margin-bottom:18px;font-size:.96rem}
.alert-err{background:var(--red-soft);border:1px solid #eecac5;color:var(--red)}
.success-card{
  background:var(--white);border-radius:var(--radius);
  padding:52px 36px;text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.35);
}
.success-icon{
  width:66px;height:66px;border-radius:50%;background:var(--green-soft);color:var(--green);
  display:grid;place-items:center;margin:0 auto 22px;
}
.success-card h3{font-size:1.4rem;font-weight:800;margin-bottom:10px;color:var(--navy)}
.success-card p{color:var(--muted);max-width:400px;margin:0 auto}

/* ---------- Footer (dunkel) ---------- */
footer{background:var(--navy);color:var(--muted-light);padding:56px 0 40px;border-top:1px solid var(--line-dark)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;margin-bottom:40px}
.foot-brand p{font-size:.92rem;max-width:340px;margin-top:14px}
.foot h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:16px;font-weight:700}
.foot ul{list-style:none}
.foot li{margin-bottom:10px}
.foot a{color:var(--muted-light);font-size:.93rem;font-weight:500;transition:color .2s}
.foot a:hover{color:#fff}
.foot-bottom{
  border-top:1px solid var(--line-dark);padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:.85rem;
}

/* ---------- Rechtsseiten ---------- */
.legal{max-width:800px;margin:0 auto;padding:64px 24px 88px}
.legal h1{font-size:clamp(1.9rem,4.5vw,2.6rem);font-weight:800;margin-bottom:32px;letter-spacing:-.02em;color:var(--navy)}
.legal h2{font-size:1.3rem;margin:34px 0 10px;color:var(--navy)}
.legal h3{font-size:1.08rem;margin:24px 0 8px;font-weight:700}
.legal p,.legal li{color:var(--muted);margin-bottom:12px}
.legal ul{padding-left:22px}
.legal a{color:var(--blue);text-decoration:underline}
.legal .backlink{display:inline-block;margin-bottom:28px;color:var(--muted);font-weight:600;text-decoration:none}
.legal .backlink:hover{color:var(--ink)}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .grid,.steps{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .cta-inner{grid-template-columns:1fr;gap:40px}
  .versus{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .nav-links a:not(.btn){display:none}
  .grid,.steps{grid-template-columns:1fr}
  form .row{grid-template-columns:1fr}
  section{padding:64px 0}
  .hero{padding:64px 0 120px}
  .form-card{padding:26px 20px}
  .foot-grid{grid-template-columns:1fr;gap:32px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}