:root{
  --navy:#003E5A;--dark:#002F45;--blue:#0B6380;--orange:#F5A51A;
  --light:#F4F7F8;--cream:#FFF2D9;--text:#253640;--muted:#6F7D84;--line:#D7E0E3;
  --white:#fff;--max:1180px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--white);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(calc(100% - 44px),var(--max));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.navbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand img{height:48px;width:auto}
.navlinks{display:flex;align-items:center;gap:28px;color:var(--muted);font-size:.94rem;font-weight:650}
.navlinks a:hover,.navlinks a[aria-current="page"]{color:var(--navy)}
.nav-cta{color:var(--navy)!important;border-bottom:3px solid var(--orange);padding-bottom:4px}
.kicker{margin:0 0 14px;color:var(--blue);font-size:.75rem;font-weight:850;letter-spacing:.16em;text-transform:uppercase}
h1,h2,h3{margin-top:0;color:var(--navy);letter-spacing:-.045em}
h1{font-size:clamp(3.2rem,7vw,6.25rem);line-height:.94;margin-bottom:24px}
h2{font-size:clamp(2.25rem,4.6vw,3.85rem);line-height:1;margin-bottom:18px}
h3{font-size:1.45rem;line-height:1.18;margin-bottom:10px}
p{margin-top:0}
.lead{max-width:790px;color:var(--muted);font-size:clamp(1.08rem,2vw,1.3rem);line-height:1.65}
.orange-rule{width:210px;height:3px;background:var(--orange);margin:24px 0 29px}
.button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.button{min-height:50px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--navy);background:var(--navy);color:white;font-weight:760;transition:.16s ease}
.button:hover{background:var(--dark);transform:translateY(-1px)}
.button.alt{background:transparent;color:var(--navy)}
.button.alt:hover{background:var(--light)}
.button.orange{background:var(--orange);border-color:var(--orange);color:var(--dark)}
.button.orange:hover{background:#E9990B}
.section{padding:90px 0}
.section.soft{background:var(--light)}
.section.cream{background:var(--cream)}
.section.dark{background:var(--navy);color:#fff}
.section.dark h2,.section.dark h3{color:#fff}
.section.dark .kicker{color:var(--orange)}
.section-head{max-width:820px;margin-bottom:46px}
.hero-home{padding:104px 0 96px}
.hero-grid,.product-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:center}
.hero-panel{min-height:420px;padding:42px;background:var(--navy);border-bottom:7px solid var(--orange);color:#fff;display:flex;flex-direction:column;justify-content:flex-end}
.hero-panel .mini{margin-bottom:auto;color:var(--orange);font-size:.74rem;font-weight:850;letter-spacing:.14em}
.hero-panel strong{font-size:clamp(1.8rem,3vw,2.8rem);line-height:1.08;letter-spacing:-.045em}
.hero-panel p{margin:16px 0 0;color:rgba(255,255,255,.7);line-height:1.6}
.solution-list{border-top:1px solid var(--line)}
.solution-row{display:grid;grid-template-columns:190px 1fr 40px;gap:28px;align-items:center;padding:32px 0;border-bottom:1px solid var(--line)}
.solution-row .label{color:var(--orange);font-size:.8rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase}
.solution-row h3{margin-bottom:7px;font-size:clamp(1.7rem,3vw,2.4rem)}
.solution-row p{max-width:760px;margin:0;color:var(--muted);line-height:1.6}
.solution-row .go{font-size:1.8rem;color:var(--navy)}
.solution-row:hover h3,.solution-row:hover .go{color:var(--blue)}
.columns-3{display:grid;grid-template-columns:repeat(3,1fr);gap:38px}
.plain-item{padding-top:18px;border-top:3px solid var(--orange)}
.plain-item .number{margin-bottom:18px;color:var(--orange);font-weight:850;letter-spacing:.1em}
.plain-item p{color:var(--muted);line-height:1.6}
.cta-band{padding:68px 0;background:var(--navy);color:#fff}
.cta-grid{display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band .kicker{color:var(--orange)}
.cta-band p{max-width:720px;margin:0;color:rgba(255,255,255,.72)}
.cta-band .button{background:#fff;border-color:#fff;color:var(--navy)}
.product-hero{padding:92px 0 78px}
.product-grid{grid-template-columns:1.07fr .93fr}
.product-name{margin-bottom:12px;color:var(--orange);font-size:1.32rem;font-weight:850}
.product-hero h1{font-size:clamp(3.5rem,6.5vw,5.9rem)}
.product-panel{min-height:440px;background:var(--navy);border-bottom:7px solid var(--orange);padding:42px;color:#fff;display:flex;flex-direction:column;justify-content:space-between}
.product-panel .mark{font-size:.74rem;color:var(--orange);font-weight:850;letter-spacing:.14em}
.product-panel .device{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.18)}
.product-panel .device div{background:var(--navy);padding:22px 18px}
.product-panel .device strong{display:block;color:var(--orange);font-size:1.75rem;margin-bottom:5px}
.product-panel .device span{color:rgba(255,255,255,.72);font-size:.86rem}
.metric-strip{background:var(--navy);color:#fff}
.metrics{display:grid;grid-template-columns:repeat(5,1fr)}
.metric{padding:31px 18px;border-right:1px solid rgba(255,255,255,.18)}
.metric:last-child{border-right:0}
.metric strong{display:block;color:var(--orange);font-size:clamp(1.5rem,3vw,2.25rem);margin-bottom:8px}
.metric span{color:rgba(255,255,255,.73);font-size:.88rem}
.story-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}
.story-card{background:var(--light);padding:38px;border-left:6px solid var(--orange)}
.story-card .timeline{display:flex;align-items:center;gap:0;margin-top:34px}
.story-card .tick{width:14px;height:14px;border-radius:50%;background:var(--navy)}
.story-card .line{height:2px;flex:1;background:var(--line);position:relative}
.story-card .line:after{content:"30 Tage ohne Messwerte";position:absolute;left:50%;top:13px;transform:translateX(-50%);white-space:nowrap;color:var(--muted);font-size:.82rem}
.big-statement{font-size:clamp(2.6rem,5vw,4.7rem);line-height:.98;letter-spacing:-.055em;color:var(--navy);margin:0 0 26px}
.big-statement span{color:var(--orange)}
.steps{display:grid;gap:12px;margin-top:26px}
.step{display:grid;grid-template-columns:34px 1fr;gap:12px}
.step b{color:var(--orange)}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px}
.compare-col{border-top:3px solid var(--orange);padding-top:22px}
.compare-col h3{font-size:1.75rem}
.compare-col p{color:var(--muted);line-height:1.6}
.chart{height:330px;position:relative;overflow:hidden;border:1px solid var(--line);background:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px),#fff;background-size:50px 50px}
.chart svg{position:absolute;inset:0;width:100%;height:100%}
.chart-note{margin-top:18px;color:var(--muted);line-height:1.6}
.feature-3{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.25)}
.feature-3 article{padding:32px 34px 10px 0}
.feature-3 article+article{padding-left:34px;border-left:1px solid rgba(255,255,255,.25)}
.feature-3 ul{margin:0;padding-left:1.1rem;color:rgba(255,255,255,.75)}
.feature-3 li{margin:8px 0}
.spec-columns{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.spec-list{margin:0;border-top:1px solid var(--line)}
.spec-row{display:grid;grid-template-columns:1fr 1.2fr;gap:28px;padding:15px 0;border-bottom:1px solid var(--line)}
.spec-row dt{color:var(--muted)}
.spec-row dd{margin:0;font-weight:650}
.download-box{padding:36px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;background:#fff;border-left:6px solid var(--orange)}
.download-box h3{margin-bottom:8px}
.download-box p{margin:0;color:var(--muted)}
.site-footer{padding:30px 0 42px;color:var(--muted);font-size:.9rem;border-top:1px solid var(--line)}
.footer-row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
@media(max-width:900px){
  .hero-grid,.product-grid,.story-grid,.compare-grid,.spec-columns{grid-template-columns:1fr}
  .columns-3,.feature-3{grid-template-columns:1fr}
  .feature-3 article+article{padding-left:0;border-left:0;border-top:1px solid rgba(255,255,255,.25)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .cta-grid,.download-box{grid-template-columns:1fr}
}
@media(max-width:680px){
  .container{width:min(calc(100% - 30px),var(--max))}
  .navlinks a:not(.nav-cta){display:none}
  .solution-row{grid-template-columns:1fr 30px}
  .solution-row .label{grid-column:1/-1}
  .metrics{grid-template-columns:1fr 1fr}
  .metric:nth-child(5){grid-column:1/-1}
  .spec-row{grid-template-columns:1fr;gap:4px}
  .section{padding:65px 0}
}

/* --- RS-50 echte Produktbilder --- */

.product-photo-panel {
  padding: 36px;
  background: #ffffff;
  overflow: hidden;
}

.product-photo-panel .mark {
  margin-bottom: 18px;
}

.product-photo {
  width: 100%;
  max-width: 520px;
  max-height: 580px;
  margin: 0 auto;
  object-fit: contain;
}

.timeseries-figure {
  margin: 0;
}

.timeseries-figure img {
  display: block;
  width: 100%;
  height: auto;
  background: #ffffff;
  border: 1px solid var(--line);
}

.timeseries-figure figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

@media (max-width: 900px) {
  .product-photo-panel {
    padding: 24px;
  }

  .product-photo {
    max-height: 480px;
  }
}


/* ==========================================================
   Mobile Navigation
   ========================================================== */

.mobile-menu {
  display: none;
  position: relative;
}

.mobile-menu summary {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--navy);
  cursor: pointer;
  font-weight: 650;
  user-select: none;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu summary::marker {
  display: none;
  content: "";
}

.hamburger {
  display: flex;
  flex-direction: column;
  width: 20px;
  gap: 4px;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .2s ease, opacity .2s ease;
}

.mobile-menu[open] .hamburger span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu[open] .hamburger span:nth-child(2) {
  opacity: 0;
}

.mobile-menu[open] .hamburger span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-menu-panel {
  position: absolute;
  z-index: 1000;
  top: calc(100% + 8px);
  right: 0;

  display: flex;
  flex-direction: column;

  width: min(330px, calc(100vw - 30px));
  padding: 8px;

  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;

  box-shadow:
    0 18px 45px rgba(0, 47, 69, .14);
}

.mobile-menu-panel a {
  display: flex;
  align-items: center;
  min-height: 46px;

  padding: 10px 13px;
  border-radius: 7px;

  color: var(--muted);
  font-weight: 650;
  text-decoration: none;
}

.mobile-menu-panel a:hover,
.mobile-menu-panel a[aria-current="page"] {
  color: var(--navy);
  background: rgba(0, 62, 90, .06);
}

.mobile-menu-panel .mobile-menu-contact {
  margin-top: 6px;
  justify-content: center;

  background: var(--navy);
  color: #fff;
}

.mobile-menu-panel .mobile-menu-contact:hover {
  background: var(--navy);
  color: #fff;
}


/* ==========================================================
   Mobile Layout
   ========================================================== */

@media (max-width: 680px) {

  .navbar {
    min-height: 68px;
    gap: 16px;
  }

  .navlinks {
    display: none;
  }

  .mobile-menu {
    display: block;
  }

  .hero-grid,
  .product-grid {
    gap: 34px;
  }

  h1 {
    font-size: clamp(2.2rem, 10vw, 3.15rem);
    line-height: 1.03;
  }

  h2 {
    font-size: clamp(1.85rem, 8vw, 2.6rem);
    line-height: 1.08;
  }

  .button-row {
    flex-direction: column;
    align-items: stretch;
  }

  .button-row .button {
    width: 100%;
    box-sizing: border-box;
    justify-content: center;
    text-align: center;
  }

  .hero-panel {
    padding: 24px;
  }

  .solution-row {
    gap: 12px;
  }

  .solution-row h3 {
    margin-top: 0;
  }

  .footer-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .legal-footer {
    line-height: 1.8;
  }
}


/* ==========================================================
   Navigation + Footer Fix 2026-08-17
   ========================================================== */

/* Mobile-Menü auf Desktop grundsätzlich unsichtbar */
details.mobile-menu {
  display: none !important;
}


/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
}

.footer-row {
  min-height: 86px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 30px;
}

.footer-copy {
  justify-self: start;
  color: var(--muted);
  font-size: .9rem;
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
}

.footer-links a {
  color: var(--muted);
  font-size: .9rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--navy);
}

.footer-mail {
  justify-self: end;
  color: var(--muted);
  font-size: .9rem;
  text-decoration: none;
}

.footer-mail:hover {
  color: var(--navy);
}


/* ---------- Mobile ---------- */

@media (max-width: 680px) {

  .navlinks {
    display: none !important;
  }

  details.mobile-menu {
    display: block !important;
  }

  .mobile-menu summary {
    list-style: none;
  }

  .mobile-menu summary::-webkit-details-marker {
    display: none;
  }

  .footer-row {
    min-height: auto;
    padding-top: 28px;
    padding-bottom: 28px;

    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .footer-links {
    justify-content: flex-start;
    gap: 18px;
  }

  .footer-mail {
    justify-self: auto;
  }

}