/* unsere-eeg.at — eco-NG EEG/BEG-Service. Brand: blue #0070C0 -> #29ABE2, solar accent #F5A623 */
:root{
  --blue-900:#003a63; --blue-700:#0070c0; --blue-500:#1f95d8; --blue-400:#29abe2;
  --sky-50:#eef7fd; --sky-100:#dceffa;
  --sun:#f5a623; --sun-soft:#fff4e5;
  --ink:#12212e; --muted:#5a6b78; --line:#e3ebf1; --bg:#ffffff; --bg-soft:#f6fafd;
  --grad:linear-gradient(120deg,#0070c0 0%,#29abe2 100%);
  --grad-soft:linear-gradient(120deg,#eef7fd 0%,#f6fafd 100%);
  --shadow:0 10px 40px -18px rgba(0,58,99,.35);
  --shadow-sm:0 4px 18px -10px rgba(0,58,99,.3);
  --r:16px; --r-sm:10px; --wrap:1140px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;font-size:17px}
img{max-width:100%;display:block}
a{color:var(--blue-700);text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
section{padding:92px 0}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;color:var(--ink);font-weight:800}
h1{font-size:clamp(2.1rem,5vw,3.5rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.5rem)}
h3{font-size:1.22rem;font-weight:700}
p{color:var(--muted)}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-700);background:var(--sky-100);padding:6px 14px;border-radius:999px;margin-bottom:18px}
.lead{font-size:1.16rem;color:var(--muted);max-width:60ch}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:1rem;border-radius:999px;padding:14px 26px;cursor:pointer;border:1.5px solid transparent;transition:transform .15s ease,box-shadow .15s ease,background .15s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:#fff;color:var(--blue-700);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue-400);color:var(--blue-900)}
.btn-sun{background:var(--sun);color:#3a2600}
.btn-sun:hover{transform:translateY(-2px);filter:brightness(1.03)}
.btn-lg{padding:16px 30px;font-size:1.06rem}

/* header */
header.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.brand img{height:38px;width:auto}
.brand small{display:block;font-size:.62rem;letter-spacing:.16em;color:var(--muted);font-weight:600;text-transform:uppercase;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{color:var(--ink);font-weight:600;font-size:.98rem}
.nav-links a:hover{color:var(--blue-700)}
.nav-cta{display:flex;align-items:center;gap:14px}
.burger{display:none;background:none;border:0;cursor:pointer;font-size:1.6rem;color:var(--ink)}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--grad-soft);padding:84px 0 76px}
.hero::before{content:"";position:absolute;top:-160px;right:-140px;width:520px;height:520px;background:radial-gradient(circle,rgba(41,171,226,.28),transparent 62%);pointer-events:none}
.hero::after{content:"";position:absolute;bottom:-180px;left:-120px;width:460px;height:460px;background:radial-gradient(circle,rgba(245,166,35,.16),transparent 60%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .lead{margin:22px 0 30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;font-size:.9rem;color:var(--muted)}
.hero-trust b{color:var(--ink)}
.hero-trust .dot{width:6px;height:6px;border-radius:50%;background:var(--blue-400);display:inline-block;margin-right:8px}

/* hero card / visual */
.hero-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:26px}
.hero-card .hc-top{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.hc-badge{width:46px;height:46px;border-radius:12px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:1.4rem}
.hc-stat{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:6px}
.hc-stat div{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:14px}
.hc-stat b{display:block;font-size:1.5rem;color:var(--blue-700);letter-spacing:-.02em}
.hc-stat span{font-size:.82rem;color:var(--muted)}
.hc-list{list-style:none;margin-top:18px;display:grid;gap:11px}
.hc-list li{display:flex;gap:10px;align-items:flex-start;font-size:.96rem;color:var(--ink)}
.hc-list .ck{color:#fff;background:var(--blue-500);border-radius:50%;width:20px;height:20px;display:grid;place-items:center;font-size:.72rem;flex:0 0 20px;margin-top:2px}

/* explainer band */
.band{background:var(--blue-900);color:#dbeaf4}
.band h2{color:#fff}
.band p{color:#b8d0e2}
.band .wrap{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.band ul{list-style:none;display:grid;gap:14px;margin-top:6px}
.band li{display:flex;gap:12px;align-items:flex-start}
.band li b{color:#fff}
.band .ck{color:var(--blue-900);background:var(--sun);border-radius:50%;width:24px;height:24px;display:grid;place-items:center;font-size:.8rem;font-weight:800;flex:0 0 24px;margin-top:3px}

/* cards / grids */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .ic{width:52px;height:52px;border-radius:14px;background:var(--sky-100);color:var(--blue-700);display:grid;place-items:center;font-size:1.5rem;margin-bottom:18px}
.card.pillar .ic{background:var(--grad);color:#fff}
.card ul{list-style:none;margin-top:14px;display:grid;gap:10px}
.card ul li{display:flex;gap:10px;align-items:flex-start;color:var(--ink);font-size:.97rem}
.card ul .ck{color:var(--blue-600,#1f95d8);flex:0 0 18px;font-weight:800}
.tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:999px;background:var(--sun-soft);color:#a9600a;margin-bottom:12px}

/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;box-shadow:var(--shadow-sm)}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:-18px;left:24px;width:40px;height:40px;border-radius:12px;background:var(--grad);color:#fff;font-weight:800;display:grid;place-items:center;box-shadow:var(--shadow-sm)}
.step h3{margin-top:14px}

/* references */
.ref{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.ref .top{padding:22px 24px;background:var(--grad-soft);border-bottom:1px solid var(--line)}
.ref .kind{font-size:.74rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--blue-700)}
.ref .top h3{margin-top:6px}
.ref .body{padding:22px 24px;flex:1}
.ref .body p{font-size:.96rem}
.ref .foot{padding:16px 24px;border-top:1px solid var(--line);font-size:.9rem;font-weight:600}
.ref .live{color:#1a8f4a}.ref .live::before{content:"●";margin-right:7px;font-size:.7rem;vertical-align:middle}

/* stats strip */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stats .n{font-size:2.4rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.03em}
.stats .l{color:var(--muted);font-size:.95rem;margin-top:4px}

/* faq */
.faq{max-width:820px;margin:0 auto;display:grid;gap:14px}
.qa{border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;overflow:hidden}
.qa summary{cursor:pointer;list-style:none;padding:20px 22px;font-weight:700;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:16px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";font-size:1.5rem;color:var(--blue-700);font-weight:400;transition:transform .2s}
.qa[open] summary::after{transform:rotate(45deg)}
.qa .a{padding:0 22px 20px;color:var(--muted)}

/* contact */
.contact{background:var(--grad-soft)}
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:start}
.contact-side .card{padding:26px}
.contact-side .line{display:flex;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.contact-side .line:last-child{border:0}
.contact-side .ic{width:44px;height:44px;flex:0 0 44px;margin:0;font-size:1.25rem}
.contact-side .line b{display:block;color:var(--ink)}
.contact-side .line span{font-size:.9rem;color:var(--muted)}
form.lead-form{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:6px;color:var(--ink)}
.field input,.field textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:var(--r-sm);font:inherit;font-size:.98rem;color:var(--ink);background:#fdfefe;transition:border .15s,box-shadow .15s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue-400);box-shadow:0 0 0 3px var(--sky-100)}
.field textarea{min-height:120px;resize:vertical}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-size:.82rem;color:var(--muted);margin-top:6px}
.form-msg{padding:14px 16px;border-radius:var(--r-sm);font-size:.95rem;font-weight:600;margin-bottom:16px;display:none}
.form-msg.ok{display:block;background:#e7f7ee;color:#136c3a;border:1px solid #b7e6ca}
.form-msg.err{display:block;background:#fdecec;color:#9c2020;border:1px solid #f3c2c2}
.altcha-box{margin:6px 0 18px;font-size:.86rem;color:var(--muted);display:flex;align-items:center;gap:10px}
.altcha-box .chk{width:22px;height:22px;border-radius:6px;border:1.5px solid var(--line);display:grid;place-items:center;color:#fff;font-size:.75rem;transition:background .2s,border .2s}
.altcha-box.solved .chk{background:#1a8f4a;border-color:#1a8f4a}
.altcha-box.solving .chk{border-color:var(--blue-400)}
.spin{width:15px;height:15px;border:2px solid var(--sky-100);border-top-color:var(--blue-500);border-radius:50%;animation:sp .7s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* footer */
footer{background:#08192a;color:#9fb4c6;font-size:.95rem}
footer .wrap{padding-top:64px;padding-bottom:34px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
footer h4{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
footer a{color:#9fb4c6}
footer a:hover{color:#fff}
footer ul{list-style:none;display:grid;gap:10px}
.foot-brand img{height:40px;margin-bottom:14px}
.foot-brand p{color:#7d95a8;font-size:.9rem;max-width:34ch}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:22px;color:#6f889b;font-size:.86rem}
.foot-bottom a{color:#9fb4c6}

/* legal pages */
.legal{max-width:820px;margin:0 auto}
.legal h1{margin-bottom:8px}
.legal h2{font-size:1.3rem;margin:34px 0 10px}
.legal p,.legal li{color:var(--muted);margin-bottom:10px}
.legal ul{padding-left:20px}
.legal .back{display:inline-block;margin-bottom:26px;font-weight:600}

/* responsive */
@media(max-width:900px){
  section{padding:66px 0}
  .hero-grid,.band .wrap,.grid-2,.contact-grid{grid-template-columns:1fr}
  .grid-3,.grid-4,.steps,.stats{grid-template-columns:1fr 1fr}
  .hero-card{order:-1}
  .foot-grid{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:8px 22px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .burger{display:block}
  .nav-cta .btn:not(.burger){display:none}
}
@media(max-width:560px){
  .grid-3,.grid-4,.steps,.stats,.row2,.hc-stat{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
}