/* marvinopper.com — statischer Neubau. Designsprache angelehnt an airmastery.de
   (Inter, Blau #306FD5 + Hellblau-Sektionen, Grün-Akzent), Marke bleibt marvinopper. */
:root{
  --blue:#306FD5; --blue-2:#5599ff; --blue-d:#1f4fa3; --green:#24cc9a;
  --ink:#111827; --muted:#5c5c5c; --muted-2:#8B97B8;
  --bg:#ffffff; --bg-soft:#F0F4FF; --line:#e6ecf7; --card:#ffffff;
  --radius:16px; --maxw:1120px; --shadow:0 10px 30px rgba(17,24,39,.08);
  --shadow-lg:0 20px 60px rgba(31,79,163,.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:'Inter',-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.center{text-align:center}
h1,h2,h3{line-height:1.15;margin:0 0 .5em;font-weight:800;letter-spacing:-.02em}
h1{font-size:clamp(2rem,5vw,3.2rem)}
h2{font-size:clamp(1.5rem,3.6vw,2.4rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em;color:var(--muted)}
.eyebrow{color:var(--blue);font-weight:700;letter-spacing:.14em;text-transform:uppercase;font-size:.8rem;margin-bottom:.7em}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:.5em;justify-content:center;
  background:linear-gradient(135deg,var(--blue-2),var(--blue));color:#fff;text-decoration:none;
  font-weight:700;font-size:1.02rem;padding:15px 30px;border-radius:999px;border:0;cursor:pointer;
  box-shadow:0 8px 22px rgba(48,111,213,.35);transition:transform .15s ease,box-shadow .15s ease;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(48,111,213,.45)}
.btn--lg{padding:18px 38px;font-size:1.12rem}
.btn--ghost{background:#fff;color:var(--blue);border:1.5px solid var(--line);box-shadow:none}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em;text-decoration:none}
.brand img{height:30px;width:auto}
.brand span{font-size:1.05rem}
.site-header .btn{padding:11px 20px;font-size:.92rem}
@media(max-width:600px){.site-header .btn{padding:9px 15px;font-size:.82rem}.brand span{font-size:.95rem}}

/* Sections */
section{padding:76px 0}
.soft{background:var(--bg-soft)}
.hero{padding:64px 0 40px;background:radial-gradient(1200px 500px at 50% -10%,#e8f0ff 0%,#fff 60%)}
.hero h1{max-width:15ch;margin-inline:auto}
.hero .lead{font-size:1.2rem;max-width:60ch;margin:0 auto 1.6em;color:var(--muted)}
.sub{max-width:62ch;margin:0 auto 1.4em}

/* Video (responsive 16:9) */
.video{position:relative;width:100%;padding-top:56.25%;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);background:#0b1220}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-wrap{max-width:860px;margin:0 auto}

/* Cards / grids */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:1fr 1fr}
@media(max-width:860px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.pill-ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#eaf1ff,#dbe8ff);color:var(--blue);font-size:1.4rem;margin-bottom:14px}
.value-list{display:grid;gap:16px;max-width:820px;margin:26px auto 0}
.value-list .row{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow)}
.value-list .check{color:var(--green);font-weight:900;font-size:1.2rem;flex:0 0 auto;margin-top:1px}
.value-list b{color:var(--ink)}

/* Testimonials */
.tcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.tcard .video{border-radius:0;box-shadow:none}
.tcard .body{padding:22px 24px}
.tcard .name{font-weight:800;color:var(--blue);margin-bottom:.4em}
.tcard blockquote{margin:0;color:var(--muted);font-size:.98rem}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:900px;margin:0 auto}
@media(max-width:860px){.steps{grid-template-columns:1fr}}
.step{text-align:center;padding:26px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.step .num{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;margin:0 auto 14px;background:linear-gradient(135deg,var(--blue-2),var(--blue));color:#fff;font-weight:800;font-size:1.3rem}

/* About */
.about{display:grid;grid-template-columns:320px 1fr;gap:40px;align-items:center;max-width:960px;margin:0 auto}
.about img{border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%}
@media(max-width:760px){.about{grid-template-columns:1fr;text-align:center}.about img{max-width:340px;margin:0 auto}}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;box-shadow:var(--shadow);overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:20px 24px;font-weight:700;color:var(--ink);display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue);font-size:1.5rem;font-weight:700;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 24px 22px;color:var(--muted)}

/* Quote block */
.quote{max-width:820px;margin:0 auto;background:linear-gradient(135deg,#0f1b34,#1f3f7d);color:#eaf1ff;border-radius:var(--radius);padding:40px;box-shadow:var(--shadow-lg)}
.quote p{color:#dbe6ff;font-size:1.15rem;font-style:italic}
.quote .who{color:#9fc0ff;font-weight:700;font-style:normal;margin-top:1em}

/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--blue),var(--blue-d));color:#fff;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#dbe6ff}

/* Footer */
.site-footer{background:#0b1220;color:#9fb0cc;padding:40px 0;text-align:center;font-size:.92rem}
.site-footer a{color:#cdd9ee;text-decoration:none;margin:0 10px}
.site-footer a:hover{color:#fff}
.site-footer .fbrand{color:#fff;font-weight:800;margin-bottom:8px}

/* Legal pages */
.legal{max-width:820px;margin:0 auto;padding:56px 0}
.legal h1{margin-bottom:.6em}
.legal h2{font-size:1.3rem;margin-top:1.6em;color:var(--blue)}
.legal p{color:#374151}
.legal ul{color:#374151;padding-left:1.2em}
.legal .back{display:inline-block;margin-bottom:24px;color:var(--blue);text-decoration:none;font-weight:600}