/* ============================================================
   voice-agent-handwerk.de — L.E.N.A
   Design-System "Virtual Blue": dunkler Daten-Hero + helle,
   seriöse Content-Sektionen. Handgeschrieben, build-frei.
   ============================================================ */

:root{
  --bg:#eef2f8;            /* heller, kühler Canvas (seriös) */
  --bg-deep:#e4eaf3;
  --bg-ice:#e4eaf3;        /* atmosphärischer Sektions-BG (Kit-Pflicht) */
  --surface:#ffffff;
  --ink:#0b1b33;           /* tiefes Marineblau, Text */
  --ink-soft:#46566e;
  --ink-faint:#8694aa;
  --line:#d9e1ee;
  --line-soft:#e8edf5;
  --accent:#2563eb;        /* seriöses Royal-Blau (CTA/Akzent) */
  --accent-deep:#1d4ed8;   /* dunkler, Text/Hover auf hell */
  --accent-soft:#dde8fe;   /* Blau-Tint Fläche */
  --accent-lite:#5b8cf5;   /* Orb-Highlight, heller als accent (Kit-Pflicht) */
  --accent-glow:rgba(37,99,235,.4); /* Glow-Schein (Kit-Pflicht) */
  --on-accent:#ffffff;     /* Text auf accent-Flächen (Kit-Pflicht) */
  --cyan:#22d3ee;          /* Daten-Glow / virtuell */
  --cyan-soft:#7fe9f6;
  --dark:#07142b;          /* Hero / Bänder / Footer */
  --dark-2:#0c1f3f;
  --dark-3:#13294d;
  --on-dark:#e9f0fb;
  --on-dark-soft:#93a6c6;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 1px 2px rgba(11,27,51,.05),0 8px 30px -12px rgba(11,27,51,.18);
  --shadow-lg:0 2px 4px rgba(11,27,51,.06),0 30px 70px -28px rgba(11,27,51,.30);
  --glow:0 0 0 1px rgba(34,211,238,.25),0 0 40px -6px rgba(34,211,238,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1180px;
  --font-display:'Space Grotesk',Georgia,serif;
  --font-body:'Hanken Grotesk',-apple-system,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);background:var(--bg);color:var(--ink);
  font-size:clamp(16px,.5vw + 15px,18px);line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.05;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.accent{color:var(--accent-deep)}
.eyebrow{font-size:.78rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-deep);font-family:var(--font-display)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.55em;font-family:var(--font-body);font-weight:600;
  font-size:1rem;padding:.92em 1.5em;border-radius:999px;border:1.5px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease),color .25s;line-height:1}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 26px -10px rgba(37,99,235,.75)}
.btn-primary:hover{transform:translateY(-2px);background:var(--accent-deep);box-shadow:0 16px 34px -10px rgba(37,99,235,.7)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--on-dark);transform:translateY(-2px)}
.btn-lg{font-size:1.06rem;padding:1.05em 1.8em}
.btn svg{width:1.1em;height:1.1em;flex:none}

/* ---------- Header ---------- */
.site-head{position:fixed;top:0;left:0;right:0;z-index:60;transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.site-head .head-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.site-head .brand,.site-head .nav-links a{color:var(--on-dark)}        /* über dunklem Hero: hell */
.site-head.scrolled{background:rgba(238,242,248,.92);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.site-head.scrolled .brand,.site-head.scrolled .nav-links a{color:var(--ink)}
.brand{display:flex;align-items:center;gap:.55em;font-family:var(--font-display);font-weight:700;font-size:1.2rem;letter-spacing:.02em}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.25),0 0 12px rgba(34,211,238,.8)}
.nav-links{display:flex;align-items:center;gap:2rem}
.nav-links a{font-size:.96rem;font-weight:500;opacity:.85;transition:opacity .2s}
.nav-links a:hover{opacity:1}
.nav-cta{display:flex;align-items:center;gap:1rem}
.burger{display:none;background:none;border:none;cursor:pointer;width:42px;height:42px;color:var(--on-dark)}
.site-head.scrolled .burger{color:var(--ink)}
.burger svg{width:26px;height:26px}

/* ---------- Hero (dunkel, virtuell) ---------- */
.hero{position:relative;background:var(--dark);color:var(--on-dark);overflow:hidden;
  padding:calc(74px + clamp(28px,5vw,72px)) 0 clamp(48px,7vw,96px)}
.hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(120% 90% at 78% 30%,rgba(34,211,238,.22),transparent 55%),
             radial-gradient(80% 70% at 12% 90%,rgba(37,99,235,.28),transparent 60%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:linear-gradient(rgba(125,233,246,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(125,233,246,.06) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(circle at 70% 40%,#000,transparent 80%)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(28px,4vw,60px);align-items:center}
.hero-kicker{display:inline-flex;align-items:center;gap:.6em;background:rgba(255,255,255,.06);border:1px solid rgba(125,233,246,.3);
  padding:.5em 1em;border-radius:999px;font-size:.82rem;font-weight:600;color:var(--cyan-soft);margin-bottom:1.5rem;font-family:var(--font-display);letter-spacing:.04em}
.hero-kicker .pulse{width:8px;height:8px;border-radius:50%;background:var(--cyan);position:relative}
.hero-kicker .pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1.5px solid var(--cyan);animation:pulse 2.2s var(--ease) infinite}
@keyframes pulse{0%{transform:scale(.6);opacity:.9}100%{transform:scale(1.8);opacity:0}}
.hero h1{font-size:clamp(2.4rem,5.2vw,4rem);margin-bottom:1.2rem;color:#fff;letter-spacing:-.025em}
.hero h1 .hl{color:var(--cyan);text-shadow:0 0 28px rgba(34,211,238,.55)}
.hero p.lead{font-size:clamp(1.08rem,1.4vw,1.26rem);color:var(--on-dark-soft);max-width:34ch;margin-bottom:2rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.9rem;align-items:center}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.hero .btn-ghost:hover{background:#fff;color:var(--dark)}
.hero-trust{margin-top:1.9rem;display:flex;flex-wrap:wrap;gap:1.3rem;font-size:.9rem;color:var(--on-dark-soft)}
.hero-trust span{display:flex;align-items:center;gap:.45em}
.hero-trust svg{width:1.1em;height:1.1em;color:var(--cyan)}

/* LENA-Bild */
.hero-frame{position:relative}
.hero-frame .photo{position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-lg),var(--glow);aspect-ratio:4/5;background:linear-gradient(160deg,#0c1f3f,#07142b)}
.hero-frame .photo img{width:100%;height:100%;object-fit:cover;object-position:center top}
.hero-frame .photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(7,20,43,.55))}
.lena-chip{position:absolute;left:-20px;bottom:30px;background:rgba(12,31,63,.86);backdrop-filter:blur(10px);
  border:1px solid rgba(125,233,246,.35);border-radius:16px;padding:.85rem 1.05rem;box-shadow:var(--shadow-lg);
  display:flex;align-items:center;gap:.75rem;max-width:255px;color:var(--on-dark)}
.lena-chip .ring{width:40px;height:40px;border-radius:50%;background:rgba(34,211,238,.15);display:grid;place-items:center;color:var(--cyan);flex:none;box-shadow:0 0 14px rgba(34,211,238,.4)}
.lena-chip .ring svg{width:19px;height:19px}
.lena-chip b{display:block;font-family:var(--font-display);font-size:.98rem;line-height:1.15;color:#fff}
.lena-chip small{color:var(--on-dark-soft);font-size:.8rem}
.hero-badge{position:absolute;right:-10px;top:24px;background:rgba(34,211,238,.12);border:1px solid rgba(125,233,246,.4);
  backdrop-filter:blur(8px);border-radius:14px;padding:.65rem .95rem;text-align:center;color:var(--cyan-soft)}
.hero-badge b{font-family:var(--font-display);font-size:1.4rem;display:block;color:#fff}
.hero-badge small{font-size:.68rem;letter-spacing:.08em}

/* ---------- Sektionen ---------- */
section{position:relative}
.sec{padding:clamp(56px,8vw,108px) 0}
.sec-head{max-width:64ch;margin-bottom:clamp(32px,4vw,56px)}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-head h2{font-size:clamp(2rem,3.6vw,3rem);margin:.6rem 0 1rem}
.sec-head p{font-size:1.1rem;color:var(--ink-soft)}

/* Szenario-Karten */
.scenarios{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem}
.scn{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.8rem;
  position:relative;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s}
.scn::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--cyan));transition:width .4s var(--ease)}
.scn:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#bcd0f0}
.scn:hover::before{width:100%}
.scn .tag{font-size:.74rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--accent-deep);font-family:var(--font-display)}
.scn h3{font-size:1.28rem;margin:.7rem 0 .6rem}
.scn p{color:var(--ink-soft);font-size:.98rem}
.scn .ico{width:46px;height:46px;border-radius:12px;background:var(--accent-soft);display:grid;place-items:center;color:var(--accent-deep);margin-bottom:1.1rem}
.scn .ico svg{width:23px;height:23px}

/* Rechner */
.calc-wrap{background:var(--dark);color:var(--on-dark);border-radius:var(--radius-lg);overflow:hidden;
  display:grid;grid-template-columns:1.1fr .9fr;box-shadow:var(--shadow-lg);position:relative}
.calc-wrap::before{content:"";position:absolute;inset:0;background:radial-gradient(70% 90% at 85% 20%,rgba(34,211,238,.16),transparent 60%);pointer-events:none}
.calc-l{padding:clamp(28px,4vw,52px);position:relative;z-index:1}
.calc-l h2{color:#fff;font-size:clamp(1.8rem,3vw,2.5rem);margin-bottom:.6rem}
.calc-l p{color:var(--on-dark-soft);margin-bottom:2rem;max-width:42ch}
.field{margin-bottom:1.5rem}
.field label{display:flex;justify-content:space-between;font-size:.92rem;font-weight:600;margin-bottom:.6rem;color:var(--on-dark)}
.field label b{font-family:var(--font-display);color:var(--cyan);font-size:1.05rem}
.field input[type=range]{width:100%;-webkit-appearance:none;appearance:none;height:6px;border-radius:3px;
  background:linear-gradient(90deg,var(--cyan) var(--p,40%),#1c3157 var(--p,40%));outline:none;cursor:pointer}
.field input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;
  background:#fff;border:3px solid var(--cyan);cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.4),0 0 12px rgba(34,211,238,.6)}
.field input[type=range]::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--cyan);cursor:pointer}
.calc-r{background:var(--dark-2);padding:clamp(28px,4vw,52px);display:flex;flex-direction:column;justify-content:center;gap:1.4rem;position:relative;z-index:1}
.calc-out .lbl{font-size:.84rem;color:var(--on-dark-soft);letter-spacing:.05em;text-transform:uppercase;font-weight:600;font-family:var(--font-display)}
.calc-out .big{font-family:var(--font-display);font-weight:700;font-size:clamp(2.4rem,5vw,3.4rem);color:var(--cyan);line-height:1;margin:.3rem 0;text-shadow:0 0 26px rgba(34,211,238,.45)}
.calc-out .sub{font-size:.92rem;color:var(--on-dark-soft)}
.calc-divider{height:1px;background:rgba(125,233,246,.16)}
.calc-verdict{font-size:1.02rem;color:var(--on-dark)}
.calc-verdict b{color:#fff;font-family:var(--font-display)}

/* Schritte */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;counter-reset:s}
.step{position:relative;padding-top:1.4rem}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--font-display);font-weight:700;
  font-size:3rem;color:var(--accent-soft);line-height:1;display:block;margin-bottom:.5rem}
.step h3{font-size:1.25rem;margin-bottom:.5rem}
.step p{color:var(--ink-soft);font-size:.98rem}
.step::after{content:"";position:absolute;top:2.3rem;left:3.4rem;right:-.75rem;height:2px;
  background:repeating-linear-gradient(90deg,var(--line) 0 7px,transparent 7px 13px)}
.steps .step:last-child::after{display:none}

/* Demo-Band */
.demoband{background:linear-gradient(120deg,var(--dark),var(--dark-3));color:var(--on-dark);border-radius:var(--radius-lg);
  padding:clamp(28px,4vw,48px);display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap;
  position:relative;overflow:hidden;border:1px solid rgba(125,233,246,.2)}
.demoband::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 100% at 90% 50%,rgba(34,211,238,.18),transparent 60%);pointer-events:none}
.demoband > *{position:relative;z-index:1}
.demoband h2{font-size:clamp(1.6rem,2.6vw,2.2rem);max-width:20ch;color:#fff}
.demoband p{color:var(--on-dark-soft);margin-top:.5rem}
.demoband .num{font-family:var(--font-display);font-weight:700;font-size:clamp(1.4rem,2.8vw,2rem);color:var(--cyan);
  display:flex;align-items:center;gap:.5em;white-space:nowrap;text-shadow:0 0 20px rgba(34,211,238,.4)}

/* FAQ */
.faq{max-width:760px;margin-inline:auto}
.qa{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;padding:1.3rem 2.5rem 1.3rem 0;font-family:var(--font-display);
  font-weight:600;font-size:1.1rem;position:relative;transition:color .2s}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";position:absolute;right:.2rem;top:50%;transform:translateY(-50%);font-size:1.6rem;color:var(--accent-deep);transition:transform .3s var(--ease);font-family:var(--font-body)}
.qa[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.qa summary:hover{color:var(--accent-deep)}
.qa .a{padding:0 2.5rem 1.4rem 0;color:var(--ink-soft);font-size:1rem}

/* Schluss-CTA */
.endcta{text-align:center;background:var(--dark);color:var(--on-dark);border-radius:var(--radius-lg);
  padding:clamp(44px,6vw,80px) clamp(20px,4vw,48px);position:relative;overflow:hidden;border:1px solid rgba(125,233,246,.18)}
.endcta::before{content:"";position:absolute;inset:0;background:radial-gradient(70% 120% at 50% 0%,rgba(34,211,238,.18),transparent 55%);pointer-events:none}
.endcta > *{position:relative;z-index:1}
.endcta h2{color:#fff;font-size:clamp(2rem,4vw,3.1rem);max-width:22ch;margin:0 auto 1.2rem}
.endcta p{color:var(--on-dark-soft);max-width:48ch;margin:0 auto 2rem;font-size:1.1rem}
.endcta .btn-ghost{color:#fff;border-color:rgba(255,255,255,.4)}
.endcta .btn-ghost:hover{background:#fff;color:var(--dark)}

/* ---------- Footer ---------- */
.site-foot{background:var(--bg-deep);border-top:1px solid var(--line);padding:clamp(48px,6vw,72px) 0 2rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;margin-bottom:3rem}
.foot-brand .brand{margin-bottom:1rem;color:var(--ink)}
.foot-brand p{color:var(--ink-soft);font-size:.95rem;max-width:36ch}
.foot-col h4{font-family:var(--font-display);font-size:.8rem;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:1rem;font-weight:600}
.foot-col a,.foot-col span{display:block;color:var(--ink-soft);font-size:.96rem;margin-bottom:.6rem;transition:color .2s}
.foot-col a:hover{color:var(--accent-deep)}
.foot-bottom{border-top:1px solid var(--line);padding-top:1.6rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.88rem;color:var(--ink-faint)}
.foot-bottom .nd{color:var(--ink-soft)}
.foot-bottom .nd a{color:var(--accent-deep);font-weight:600}

/* ---------- Legal ---------- */
.legal-hero{padding:clamp(40px,6vw,72px) 0 1rem}
.legal-hero h1{font-size:clamp(2rem,4vw,3rem)}
.legal-hero p{color:var(--ink-soft);margin-top:.6rem}
.legal-body{max-width:820px;padding-bottom:clamp(56px,8vw,100px)}
.legal-body h2{font-size:1.5rem;margin:2.4rem 0 .8rem}
.legal-body h3{font-family:var(--font-body);font-weight:700;font-size:1.08rem;margin:1.6rem 0 .4rem}
.legal-body p,.legal-body li{color:var(--ink-soft);margin-bottom:.8rem}
.legal-body ul,.legal-body ol{padding-left:1.3rem;margin-bottom:1rem}
.legal-body strong{color:var(--ink)}
.legal-body a{color:var(--accent-deep);text-decoration:underline;text-underline-offset:2px}
.legal-note{background:var(--accent-soft);border:1px solid #c3d6fb;border-radius:var(--radius);padding:1.1rem 1.3rem;margin:1.5rem 0;font-size:.95rem}
/* Legal: fixed Header kompensieren + Header immer hell */
body.legal-page{padding-top:74px}
.legal-page .site-head{background:rgba(238,242,248,.92);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.legal-page .site-head .brand,.legal-page .site-head .nav-links a,.legal-page .site-head .burger{color:var(--ink)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:2.2rem}
  .hero-frame{max-width:420px;margin-inline:auto;order:-1}
  .scenarios,.steps{grid-template-columns:1fr}
  .step::after{display:none}
  .calc-wrap{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .nav-cta{margin-left:auto}
  .burger{display:grid;place-items:center;margin-left:.5rem}
  .nav-links.open{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;
    background:var(--surface);padding:1.5rem;gap:1.2rem;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg)}
  .nav-links.open a{color:var(--ink)!important}
}
@media(max-width:540px){
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
  .demoband{flex-direction:column;align-items:flex-start}
  .hero-badge{right:6px}
  .lena-chip{left:6px}
  .nav-cta .btn .lbl{display:none}
  .nav-cta .btn{gap:0;padding:.7em}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}