:root{
  --blue:#0b4f8a;
  --blue-dark:#083c6d;
  --cyan:#00a6d6;
  --ink:#172033;
  --muted:#5b667a;
  --bg:#f4f8fb;
  --card:#fff;
  --danger:#b42318;
  --ok:#157f3b;
  --yellow:#ffdf3d;
  --shadow:0 20px 45px rgba(18,35,65,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.55;
  font-size:18px;
}
a{color:inherit}
img{display:block;width:100%;height:auto;background:#dbe8f2}

/* ---------- FIXE NAVIGATION ---------- */
.sitenav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:14px clamp(16px,4vw,64px);
  background:rgba(8,60,109,.88);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  color:#fff;transition:padding .2s,background .2s,box-shadow .2s;
}
.sitenav strong a{color:#fff}
.sitenav strong{font-size:1.05rem;white-space:nowrap;transition:font-size .2s}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand-logo{
  width:38px;height:38px;flex:0 0 auto;background:#fff;border-radius:8px;padding:3px;
  transition:width .2s,height .2s;
}
.sitenav.scrolled .brand-logo{width:30px;height:30px}
.sitenav .links{display:flex;gap:8px;flex-wrap:wrap}
.sitenav a{
  padding:9px 15px;border-radius:999px;background:rgba(255,255,255,.16);
  text-decoration:none;font-weight:700;font-size:.98rem;transition:padding .2s,font-size .2s;
}
.sitenav a:hover{background:rgba(255,255,255,.34)}
.sitenav.scrolled{padding:7px clamp(16px,4vw,64px);background:rgba(8,60,109,.97);box-shadow:0 4px 16px rgba(0,0,0,.28)}
.sitenav.scrolled strong{font-size:.92rem}
.sitenav.scrolled a{padding:6px 12px;font-size:.85rem}

/* Anker nicht unter der fixen Leiste verstecken */
[id]{scroll-margin-top:84px}

/* ---------- HERO ---------- */
.hero{
  background:linear-gradient(135deg,#083c6d,#0e74b8 55%,#25b6d2);
  color:#fff;
  padding:96px clamp(16px,4vw,64px) 56px;
}
.hero-grid{
  max-width:1180px;margin:0 auto;
  display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;
}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:var(--cyan);margin:0 0 8px}
.hero .eyebrow{color:#bdf2ff}
h1{font-size:clamp(2rem,5vw,3.6rem);line-height:1.05;margin:0 0 20px}
h2{font-size:clamp(1.7rem,3.5vw,2.6rem);line-height:1.1;margin:0 0 18px}
h3{margin:0 0 10px;font-size:1.3rem}
.lead{font-size:clamp(1.1rem,2vw,1.4rem);max-width:760px}
.quick-card,.notice{
  background:rgba(255,255,255,.96);color:var(--ink);border-radius:22px;
  padding:18px 22px;box-shadow:var(--shadow);border-left:7px solid var(--cyan);margin-top:18px;
}
.badge{display:inline-block;background:var(--ok);color:#fff;border-radius:999px;padding:3px 12px;font-weight:800;font-size:.85rem;margin-bottom:6px}
.photo-card{background:var(--card);border-radius:28px;box-shadow:var(--shadow);color:var(--ink);overflow:hidden;margin:0}
.photo-card figcaption,figure figcaption{padding:12px 16px;color:var(--muted);font-size:.95rem}

/* ---------- LAYOUT ---------- */
.section,.chooser{max-width:1180px;margin:0 auto;padding:54px clamp(16px,3vw,28px)}
.accent{
  max-width:none;background:#eaf6fb;
  padding-left:max(clamp(16px,3vw,28px),calc((100vw - 1180px)/2));
  padding-right:max(clamp(16px,3vw,28px),calc((100vw - 1180px)/2));
}
.intro{font-size:1.1rem;color:var(--muted)}

/* ---------- CHOOSER ---------- */
.choice-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.choice{
  background:var(--card);border-radius:24px;box-shadow:var(--shadow);
  text-decoration:none;padding:24px;display:grid;gap:4px;border:3px solid transparent;transition:.15s;
}
.choice:hover{border-color:var(--cyan);transform:translateY(-3px)}
.choice span{font-size:2.4rem}
.choice strong{font-size:1.15rem}
.choice small{color:var(--muted)}
.choice.danger{border-color:#ffd7d3}
.choice.danger:hover{border-color:var(--danger)}

/* ---------- STEPS & METHODS ---------- */
.steps{display:grid;gap:28px;align-items:stretch}
.steps.two{grid-template-columns:repeat(2,1fr)}
.steps.three{grid-template-columns:repeat(3,1fr)}
.step,.method{
  background:var(--card);border-radius:24px;box-shadow:var(--shadow);
  padding:24px;
}
.step{margin-bottom:0}
.method{margin-bottom:22px}
.number{
  display:inline-grid;place-items:center;min-width:42px;height:42px;border-radius:999px;
  background:var(--blue);color:#fff;font-weight:900;margin-bottom:12px;padding:0 12px;font-size:1.1rem;
}
.number.ok{background:var(--ok)}
.method h3{color:var(--blue)}
.method ol,.step ol{padding-left:22px}
.method ol li,.step ol li{margin:8px 0}
kbd{background:#172033;color:#fff;border-radius:8px;padding:3px 9px;font-weight:800;white-space:nowrap}
.geraet{display:inline-block;background:#e6f0ff;color:var(--blue-dark);font-weight:800;padding:2px 12px;border-radius:8px}

.success{background:#e8f7ee;border:2px solid var(--ok);border-radius:14px;padding:12px 16px;margin-top:14px;font-weight:700;color:#0d5b2e}
.success::before{content:"✅ "}

/* ---------- GALLERY & MARKERS ---------- */
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:18px;align-items:start}
.gallery.one{grid-template-columns:1fr;max-width:520px}
figure{margin:0;overflow:hidden;border-radius:18px;background:#fff;border:1px solid #d8e4ee}
.annotated{position:relative}

.hotspot{position:absolute;width:0;height:0;pointer-events:none}
.hotspot .ring{
  position:absolute;width:56px;height:56px;border:5px solid var(--danger);border-radius:50%;
  transform:translate(-50%,-50%);box-shadow:0 0 0 4px rgba(180,35,24,.3);
  animation:puls 1.3s infinite;
}
.hotspot .ring.small{width:40px;height:40px}
@keyframes puls{
  0%{box-shadow:0 0 0 0 rgba(180,35,24,.55)}
  70%{box-shadow:0 0 0 16px rgba(180,35,24,0)}
  100%{box-shadow:0 0 0 0 rgba(180,35,24,0)}
}
.hotspot .tip{
  position:absolute;top:36px;left:50%;transform:translateX(-50%);
  white-space:nowrap;background:var(--yellow);color:#1b1600;border:2px solid #111;
  border-radius:999px;padding:6px 12px;font-weight:800;font-size:.9rem;
  box-shadow:0 6px 16px rgba(0,0,0,.25);
}
.hotspot .tip.up{top:auto;bottom:36px}
.hotspot .tip.left{top:50%;left:auto;right:36px;transform:translateY(-50%)}
.hotspot .tip.right{top:50%;left:36px;transform:translateY(-50%)}

.caption{font-size:.95rem;color:var(--muted);margin:8px 2px 0}
.hier{color:var(--danger);font-weight:800}

/* ---------- HINTS & ANCHORS ---------- */
.hint{background:#fffbe6;border:1px solid var(--yellow);border-radius:12px;padding:12px 16px;font-size:.98rem;margin-top:14px}
.notice{border-left-color:#ffb020;margin-bottom:30px}
.jump{
  display:inline-block;background:#e6f0ff;color:var(--blue-dark);font-weight:800;
  text-decoration:none;padding:12px 16px;border-radius:12px;border:2px solid var(--blue);margin-top:16px;
}
.jump:hover{background:var(--blue);color:#fff}
@keyframes flash{0%,100%{box-shadow:var(--shadow)}30%{box-shadow:0 0 0 5px var(--yellow)}}
.flash{animation:flash 1.2s ease 1}

/* ---------- TROUBLESHOOTING ---------- */
.danger-zone{background:#fff7f5;border-radius:32px;margin:0 auto 40px;border:3px solid #ffd2cc}
.danger-zone h2{color:var(--danger)}
details{background:#fff;border:1px solid #ffd2cc;border-radius:14px;margin:12px 0;padding:0 18px}
details summary{cursor:pointer;font-weight:800;padding:16px 0;font-size:1.1rem;color:var(--danger)}
details[open] summary{border-bottom:1px solid #ffe3df;margin-bottom:12px}

/* ---------- PDF / DRUCK-CTA ---------- */
.pdf-cta{padding-top:10px;padding-bottom:30px}
.pdf-box{
  background:var(--card);border-radius:24px;box-shadow:var(--shadow);
  border-left:7px solid var(--cyan);padding:28px clamp(20px,3vw,34px);text-align:center;
}
.pdf-box h2{font-size:clamp(1.4rem,3vw,2rem);margin-bottom:12px}
.pdf-box p{max-width:680px;margin:0 auto 14px;color:var(--muted)}
.pdf-btn{
  display:inline-block;cursor:pointer;border:none;
  background:linear-gradient(135deg,#0e74b8,#25b6d2);color:#fff;
  font-weight:800;font-size:1.15rem;padding:16px 28px;border-radius:999px;
  box-shadow:0 12px 28px rgba(14,116,184,.35);transition:transform .15s,box-shadow .15s;
}
.pdf-btn:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(14,116,184,.45)}
.pdf-hint{font-size:.95rem;margin-top:6px!important}

footer{text-align:center;padding:34px;color:var(--muted)}
footer a{font-weight:800;color:var(--blue)}

.missing-image{
  display:grid;place-items:center;min-height:220px;padding:26px;text-align:center;
  background:repeating-linear-gradient(45deg,#dbe8f2,#dbe8f2 12px,#eef5fa 12px,#eef5fa 24px);
  color:#40516b;font-weight:800;
}

@media (max-width:900px){
  .hero-grid,.steps.two,.steps.three,.choice-grid,.gallery{grid-template-columns:1fr}
  .sitenav{justify-content:center;gap:8px;padding:10px 14px}
  .sitenav strong{flex-basis:100%;text-align:center}
  .sitenav a{font-size:.85rem;padding:6px 11px}
  .hero{padding-top:150px}
  [id]{scroll-margin-top:140px}
  .section,.chooser{padding-top:40px}
  .hotspot .tip{font-size:.8rem;padding:5px 9px}
}

/* ---------- DRUCK / PDF (A4) ---------- */
@media print{
  @page{size:A4;margin:14mm}
  html{scroll-behavior:auto}
  body{
    background:#fff;color:#000;font-size:11pt;line-height:1.4;
    -webkit-print-color-adjust:exact;print-color-adjust:exact;
  }
  /* Bildschirm-Elemente ausblenden */
  .sitenav,.chooser,.pdf-cta,.no-print,footer a,.jump,.hotspot{display:none!important}
  /* Anker-Versatz für fixe Leiste zurücksetzen */
  [id]{scroll-margin-top:0}

  .hero{padding:0 0 14px;background:none!important;color:#000}
  .hero-grid{display:block;max-width:none}
  .hero .eyebrow{color:#0b4f8a}
  h1{font-size:22pt;margin:0 0 8px}
  h2{font-size:16pt;margin:0 0 8px;color:#0b4f8a}
  h3{font-size:12.5pt}
  .lead{font-size:11pt}
  .quick-card,.notice{box-shadow:none;border:1px solid #999;margin-top:10px;break-inside:avoid}

  .section,.accent{
    max-width:none;padding:10px 0;background:none!important;break-inside:avoid;
  }
  .steps{gap:12px}
  .steps.two,.steps.three{grid-template-columns:1fr 1fr}
  .step,.method{
    box-shadow:none;border:1px solid #bbb;padding:12px;break-inside:avoid;page-break-inside:avoid;
  }
  .number{background:#0b4f8a!important;min-width:30px;height:30px;font-size:.95rem;margin-bottom:8px}
  .number.ok{background:#157f3b!important}

  .gallery,.gallery.one{grid-template-columns:1fr 1fr;gap:10px;max-width:none}
  figure{border:1px solid #ccc;break-inside:avoid}
  img{max-height:70mm;object-fit:contain}
  .success{box-shadow:none;border:1px solid #157f3b;break-inside:avoid}
  .hint{break-inside:avoid}

  /* Hilfe-Abschnitte vollständig anzeigen */
  details{border:1px solid #bbb;break-inside:avoid}
  details summary{color:#000;list-style:none}
  details[open] summary{border-bottom:1px solid #ccc}

  /* Neue Seite vor den großen Abschnitten für saubere Aufteilung */
  #windows,#android,#apple,#hilfe{break-before:page;page-break-before:always}

  a[href^="#"]{color:#000;text-decoration:none}
}