/* ═══════════════════════════════════════════════
   VOLT ENERGIE — Shared Stylesheet
   Mobile-first, responsive
   ═══════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --black:  #090909;
  --white:  #f3f2ed;
  --yellow: #f5c400;
  --yd:     #c9a200;
  --g1:     #131313;
  --g2:     #1c1c1c;
  --g3:     #262626;
  --muted:  rgba(243,242,237,.45);
  --ym:     rgba(245,196,0,.08);
  --border: rgba(245,196,0,.12);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--black);color:var(--white);font-family:'DM Sans',sans-serif;font-weight:300;overflow-x:hidden;line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* ── BUTTONS ── */
.btn{display:inline-block;padding:14px 34px;font-size:12px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;border-radius:2px;border:none;cursor:pointer;transition:all .22s;text-decoration:none}
.btn-y{background:var(--yellow);color:var(--black)}
.btn-y:hover{background:var(--yd)}
.btn-g{background:transparent;color:var(--white);border:1px solid rgba(255,255,255,.15)}
.btn-g:hover{border-color:var(--yellow);color:var(--yellow)}
.btn-blk{background:var(--black);color:var(--yellow)}

/* ── NAV ── */
nav{position:fixed;top:0;left:0;right:0;z-index:300;display:flex;justify-content:space-between;align-items:center;padding:16px 56px;background:rgba(9,9,9,.96);backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}
.logo{font-family:'Bebas Neue',sans-serif;font-size:24px;letter-spacing:5px;color:var(--yellow);z-index:301;position:relative}
.logo span{color:var(--white)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{color:var(--white);font-size:11px;letter-spacing:1.8px;text-transform:uppercase;opacity:.55;transition:opacity .2s,color .2s;padding:6px 12px;border-radius:2px}
.nav-links a:hover{opacity:1;color:var(--yellow)}
.nav-links a.active{opacity:1;color:var(--yellow)}
.nav-links .ncta{background:var(--yellow);color:var(--black);opacity:1;font-weight:600;padding:8px 18px}
.nav-links .ncta:hover{background:var(--yd)}

/* Hamburger button */
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;cursor:pointer;padding:6px;z-index:301;position:relative;background:none;border:none}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--white);border-radius:2px;transition:all .3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── DIVIDER ── */
.div{height:1px;margin:0 56px;background:linear-gradient(90deg,transparent,rgba(245,196,0,.18),transparent)}

/* ── PAGE HERO (inner pages) ── */
.page-hero{min-height:70vh;display:flex;flex-direction:column;justify-content:center;padding:130px 56px 80px;position:relative;overflow:hidden}
.page-label{font-size:10px;letter-spacing:3px;text-transform:uppercase;color:var(--yellow);margin-bottom:14px}
.page-h1{font-family:'Bebas Neue',sans-serif;font-size:clamp(44px,7vw,88px);letter-spacing:1px;line-height:.95;margin-bottom:20px}
.page-sub{font-size:15px;color:var(--muted);line-height:1.75;max-width:580px}

/* ── SECTION BASE ── */
section{padding:80px 56px}
.section-label{font-size:10px;letter-spacing:3px;text-transform:uppercase;color:var(--yellow);margin-bottom:13px}
.section-title{font-family:'Bebas Neue',sans-serif;font-size:clamp(34px,4.5vw,56px);letter-spacing:1px;line-height:1;margin-bottom:48px}
/* legacy aliases */
.stag{font-size:10px;letter-spacing:3px;text-transform:uppercase;color:var(--yellow);margin-bottom:13px}
.stitle{font-family:'Bebas Neue',sans-serif;font-size:clamp(34px,4.5vw,56px);letter-spacing:1px;line-height:1;margin-bottom:48px}
.scenter{text-align:center}
.scenter .stitle,.scenter .section-title{margin-left:auto;margin-right:auto}

/* ── RECHNER BANNER ── */
.rechner-banner{background:rgba(245,196,0,0.07);border-top:1px solid rgba(245,196,0,0.15);border-bottom:1px solid rgba(245,196,0,0.15);padding:20px 56px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.rechner-banner-cta{display:inline-block;background:var(--yellow);color:#090909;padding:12px 28px;border-radius:2px;font-size:10px;font-weight:700;letter-spacing:2px;text-transform:uppercase;text-decoration:none;white-space:nowrap;flex-shrink:0}
.rechner-banner-cta:hover{background:var(--yd)}

/* ── GRID BACKGROUNDS ── */
.hero-grid-bg{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(245,196,0,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(245,196,0,.025) 1px,transparent 1px);background-size:55px 55px}
.glow-right{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 50% 55% at 78% 42%,rgba(245,196,0,.09) 0%,transparent 65%)}

/* ── CARDS ── */
.card{background:var(--g1);border:1px solid var(--border);border-radius:3px;padding:32px;transition:border-color .3s,background .3s}
.card:hover{border-color:var(--yellow);background:var(--g2)}
.card-icon{width:48px;height:48px;background:var(--ym);border-radius:2px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px}
.card h3{font-size:16px;font-weight:600;margin-bottom:10px}
.card p{font-size:13px;line-height:1.85;color:var(--muted)}

/* ── FAQ ── */
.faq-item{border-bottom:1px solid rgba(255,255,255,.06);padding:20px 0}
.faq-item:first-child{border-top:1px solid rgba(255,255,255,.06)}
.faq-q{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-size:15px;font-weight:500}
.faq-q span{color:var(--yellow);font-size:20px;transition:transform .3s;flex-shrink:0;margin-left:16px}
.faq-a{font-size:13.5px;line-height:1.85;color:var(--muted);max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s}
.faq-item.open .faq-a{max-height:400px;padding-top:14px}
.faq-item.open .faq-q span{transform:rotate(45deg)}

/* ── STATS BAR ── */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);background:var(--g1);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stat-cell{padding:28px 16px;text-align:center;border-right:1px solid rgba(255,255,255,.05)}
.stat-cell:last-child{border-right:none}
.stat-num{font-family:'Bebas Neue',sans-serif;font-size:40px;color:var(--yellow);line-height:1}
.stat-lbl{font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);margin-top:4px}

/* ── REGION PILLS ── */
.region-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.pill{display:inline-block;padding:6px 16px;border:1px solid rgba(245,196,0,.2);border-radius:100px;font-size:11px;letter-spacing:1px;color:var(--yellow);background:var(--ym)}

/* ── LEGAL STRIP ── */
.legal-strip{background:var(--g2);padding:16px 56px;border-top:1px solid rgba(255,255,255,.04)}
.legal-strip p{font-size:10.5px;color:rgba(243,242,237,.22);line-height:1.7;max-width:900px;margin:0 auto;text-align:center}

/* ── CTA BANNER ── */
.cta-banner{background:var(--yellow);color:var(--black);padding:80px 56px;position:relative;overflow:hidden}
.cta-banner::after{content:'⚡';position:absolute;right:40px;top:50%;transform:translateY(-50%);font-size:240px;opacity:.05;pointer-events:none;line-height:1}
.cta-banner .stag,.cta-banner .section-label{color:rgba(0,0,0,.35)}
.cta-banner .stitle,.cta-banner .section-title{color:var(--black);margin-bottom:14px}
.cta-sub{font-size:15px;color:rgba(0,0,0,.5);line-height:1.75;margin-bottom:32px;max-width:520px}
.trust-row{display:flex;gap:20px;flex-wrap:wrap;margin-top:22px}
.trust-item{display:flex;align-items:center;gap:6px;font-size:11px;color:rgba(0,0,0,.45)}
.trust-item::before{content:'✓';font-weight:700;color:var(--black)}

/* ── FOOTER ── */
footer{background:var(--g1);padding:56px 56px 28px;border-top:1px solid rgba(255,255,255,.04)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:40px}
.footer-logo{font-family:'Bebas Neue',sans-serif;font-size:26px;letter-spacing:4px;color:var(--yellow);margin-bottom:12px}
.footer-logo span{color:var(--white)}
.footer-desc{font-size:12.5px;line-height:1.8;color:rgba(243,242,237,.3);max-width:220px}
.footer-col h4{font-size:9.5px;letter-spacing:2.5px;text-transform:uppercase;color:var(--yellow);margin-bottom:16px}
.footer-col a{display:block;font-size:12.5px;color:rgba(243,242,237,.38);margin-bottom:9px;transition:color .2s}
.footer-col a:hover{color:var(--white)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.05);padding-top:20px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.footer-bottom p{font-size:10.5px;color:rgba(243,242,237,.2)}

/* ── ANIMATIONS ── */
@keyframes fu{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}
.anim{animation:fu .7s ease both}
.anim-1{animation-delay:.08s}
.anim-2{animation-delay:.16s}
.anim-3{animation-delay:.24s}

/* ══════════════════════════════════════
   RESPONSIVE — Tablet  ≤ 960px
   ══════════════════════════════════════ */
@media(max-width:960px){
  /* Nav */
  nav{padding:14px 20px}
  .hamburger{display:flex}
  .nav-links{display:none}
  section,.cta-banner,footer,.legal-strip{padding-left:20px;padding-right:20px}
  .div{margin:0 20px}

  /* Hero */
  .page-hero{padding:100px 20px 60px;min-height:60vh}

  /* Rechner banner */
  .rechner-banner{padding:16px 20px;flex-direction:column;align-items:flex-start;gap:12px}
  .rechner-banner-cta{width:100%;text-align:center}

  /* Stats */
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .stat-cell:nth-child(2){border-right:none}

  /* CTA banner */
  .cta-banner{padding:56px 20px}
  .cta-banner::after{display:none}

  /* Footer */
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

/* ══════════════════════════════════════
   RESPONSIVE — Mobile  ≤ 600px
   ══════════════════════════════════════ */
@media(max-width:600px){
  /* Section padding */
  section{padding:56px 16px}
  .cta-banner{padding:48px 16px}
  footer{padding:48px 16px 24px}
  .legal-strip{padding:14px 16px}
  .div{margin:0 16px}

  /* Page hero */
  .page-hero{padding:90px 16px 48px;min-height:auto}
  .page-h1{font-size:clamp(38px,11vw,60px)}
  .page-sub{font-size:14px}

  /* Section titles */
  .stitle,.section-title{font-size:clamp(30px,9vw,44px);margin-bottom:32px}

  /* Cards */
  .card{padding:24px}

  /* Stats bar */
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .stat-num{font-size:32px}

  /* Footer */
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col:last-child{display:none}
  .footer-desc{max-width:100%}
  .footer-bottom{flex-direction:column;text-align:center;gap:6px}

  /* Trust items */
  .trust-row{flex-direction:column;gap:10px}
  .cta-sub{font-size:14px}

  /* Pills */
  .region-pills{gap:6px}
  .pill{font-size:10px;padding:5px 12px}
}

/* ── HAMBURGER ── */
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px;background:none;border:none}
.hamburger span{display:block;width:24px;height:2px;background:var(--white);transition:all .3s;border-radius:2px}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.mobile-menu{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(9,9,9,.98);z-index:299;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:80px 24px 40px}
.mobile-menu.open{display:flex;animation:mfade .2s ease}
@keyframes mfade{from{opacity:0}to{opacity:1}}
.mobile-menu a{font-family:'Bebas Neue',sans-serif;font-size:34px;letter-spacing:3px;color:var(--white);text-align:center;transition:color .2s;padding:8px 0}
.mobile-menu a:hover,.mobile-menu a.active{color:var(--yellow)}
.mobile-menu .m-cta{background:var(--yellow);color:var(--black);padding:14px 40px;border-radius:2px;font-size:15px;font-family:'DM Sans',sans-serif;font-weight:700;letter-spacing:2px;margin-top:14px}

/* ── COOKIE BANNER ── */
#cookie-banner{position:fixed;bottom:0;left:0;right:0;z-index:9999;background:#131313;border-top:1px solid rgba(245,196,0,0.2);padding:20px 56px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;transform:translateY(100%);transition:transform 0.4s ease;box-shadow:0 -8px 32px rgba(0,0,0,0.5)}
#cookie-banner.show{transform:translateY(0)}
#cookie-banner p{font-size:13px;color:rgba(243,242,237,0.55);line-height:1.65;font-family:'DM Sans',sans-serif;max-width:680px;margin:0}
#cookie-banner a{color:#f5c400;text-decoration:none}
.cookie-btns{display:flex;gap:10px;flex-shrink:0}
.cbtn-accept{background:#f5c400;color:#090909;border:none;padding:11px 24px;font-size:11px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;border-radius:2px;cursor:pointer;font-family:'DM Sans',sans-serif;white-space:nowrap}
.cbtn-accept:hover{background:#c9a200}
.cbtn-decline{background:transparent;color:rgba(243,242,237,0.45);border:1px solid rgba(255,255,255,0.1);padding:11px 20px;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;border-radius:2px;cursor:pointer;font-family:'DM Sans',sans-serif;white-space:nowrap}
@media(max-width:700px){#cookie-banner{padding:20px;flex-direction:column}.cookie-btns{width:100%}.cbtn-accept,.cbtn-decline{flex:1;text-align:center}}

/* ══════════════════════════════════════
   MOBILE ENHANCEMENTS — Extra Polish
   ══════════════════════════════════════ */

/* Touch-friendly tap targets */
@media(max-width:768px){
  .btn{padding:16px 28px;font-size:13px;width:100%;text-align:center;display:block}
  .btn + .btn{margin-top:10px}
  
  /* Nav spacing */
  nav{padding:12px 16px}
  .logo{font-size:22px;letter-spacing:3px}
  
  /* Hero improvements */
  .page-hero{padding:90px 16px 50px}
  .page-h1{font-size:clamp(36px,10vw,56px);line-height:1}
  .page-sub{font-size:13.5px}
  
  /* Section titles */
  .section-title,.stitle{font-size:clamp(28px,8vw,42px);margin-bottom:28px}
  
  /* Cards */
  .card{padding:20px 18px}
  .card h3{font-size:15px}
  
  /* Stats single column on small phones */
  .stats-bar{grid-template-columns:1fr 1fr}
  .stat-num{font-size:30px}
  .stat-cell{padding:20px 10px}
  
  /* Rechner banner */
  .rechner-banner{padding:16px;gap:12px}
  .rechner-banner p{font-size:13px}
  
  /* FAQ */
  .faq-q{font-size:14px}
  
  /* Footer */
  .footer-grid{grid-template-columns:1fr;gap:24px}
  footer{padding:40px 16px 20px}
  .legal-strip{padding:12px 16px;flex-direction:column;gap:6px;text-align:center}
  .legal-strip a{display:inline-block;margin:0 6px}
  
  /* Table overflow */
  table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  
  /* Form inputs bigger touch targets */
  input,select,textarea{font-size:16px !important} /* prevent zoom on iOS */
  
  /* Process steps overflow */
  .steps,.sgrid,.tgrid,.rgrid{gap:8px}
}

@media(max-width:400px){
  .page-h1{font-size:clamp(32px,9vw,44px)}
  section{padding:48px 14px}
  .stats-bar{grid-template-columns:1fr 1fr}
  .stat-num{font-size:26px}
}

/* ── PERFORMANCE: preconnect hint in CSS ── */
/* Images lazy-load handled via HTML loading="lazy" */

/* ── Smooth scroll for all ── */
html{scroll-behavior:smooth}

/* ── Focus styles for accessibility ── */
a:focus-visible,button:focus-visible{outline:2px solid var(--yellow);outline-offset:3px;border-radius:2px}

/* ── MOBILE FIXES v2 ── */
@media(max-width:768px){
  /* Rechner banner stack on mobile */
  .rechner-banner{
    flex-direction:column;
    align-items:flex-start;
    gap:16px;
    padding:20px;
  }
  .rechner-banner a{
    width:100%;
    justify-content:center;
    text-align:center;
  }

  /* Hero section */
  .hero{
    grid-template-columns:1fr;
    padding:96px 16px 48px;
    min-height:auto;
    gap:32px;
  }
  .hactions{
    flex-direction:column;
  }
  .hactions a{
    width:100%;
    text-align:center;
  }

  /* Nav */
  .nav-links{display:none}
  .hamburger{display:flex}

  /* Grid fixes */
  .steps{grid-template-columns:1fr}
  .sgrid{grid-template-columns:1fr}
  .tgrid{grid-template-columns:1fr}
  .rgrid{grid-template-columns:1fr 1fr}
  .wgrid{grid-template-columns:1fr;gap:32px}
  .wvisual{position:static}

  /* CTA banner */
  .cta-banner{padding:48px 16px}
  .trust-row{flex-direction:column;gap:8px;align-items:flex-start}

  /* hstats */
  .hstats{grid-template-columns:1fr 1fr 1fr}
}

@media(max-width:480px){
  .rgrid{grid-template-columns:1fr}
  .hstats{grid-template-columns:1fr 1fr}
  section{padding:48px 16px}
  .stitle{font-size:clamp(26px,8vw,38px)}
}

/* ── SAFARI HAMBURGER FIX ── */
.hamburger {
  display: none;
  -webkit-appearance: none;
  appearance: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  z-index: 302;
  position: relative;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all 0.3s ease;
  border-radius: 2px;
  pointer-events: none;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 768px) {
  .hamburger { display: flex !important; }
  .nav-links { display: none !important; }
}

/* Mobile menu Safari fix */
.mobile-menu {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}