:root{--navy:#071829;--navy2:#0b263e;--blue:#087aa8;--cyan:#29c5e6;--ice:#eaf7fa;--ink:#112232;--muted:#5e7180;--line:#dbe4ea;--white:#fff;--orange:#ff8b3d;--shadow:0 20px 55px rgba(5,29,48,.12);--r:18px;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Helvetica Neue",sans-serif;color:var(--ink);background:#fff;line-height:1.65}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:1000;background:#fff;padding:10px}.topbar{background:#04111d;color:#b9d1df;font-size:.82rem}.topbar .wrap{display:flex;justify-content:space-between;padding:8px 0}.site-header{position:sticky;top:0;z-index:50;background:rgba(7,24,41,.96);backdrop-filter:blur(12px);box-shadow:0 1px 0 rgba(255,255,255,.09)}.nav{height:80px;display:flex;align-items:center;gap:34px}.brand{display:flex;align-items:center;gap:13px;color:#fff;font-weight:800;letter-spacing:.02em;margin-right:auto}.brand img{width:92px;height:48px;object-fit:contain;background:#fff;border-radius:9px;padding:4px}.brand small{display:block;color:#9bc0d1;font-size:.66rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase}.navlinks{display:flex;align-items:center;gap:22px;font-size:.93rem;color:#dbeaf1}.navlinks a:hover,.navlinks a[aria-current=page]{color:#48d4ee}.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:12px 20px;font-weight:700;border:1px solid transparent;cursor:pointer}.nav-cta,.btn-primary{background:var(--cyan);color:#041722}.btn-primary:hover{background:#68e0f1}.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}.btn-dark{background:var(--navy);color:#fff}.menu{display:none;color:#fff;background:none;border:0;font-size:1.6rem}.hero{min-height:760px;display:grid;align-items:center;color:#fff;position:relative;overflow:hidden;background:linear-gradient(90deg,rgba(3,17,29,.97) 0%,rgba(5,29,47,.86) 53%,rgba(4,24,38,.4)),url('../img/industrial.jpg') center/cover}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 55%,rgba(41,197,230,.13))}.hero .wrap{position:relative;z-index:1;padding:100px 0}.eyebrow{text-transform:uppercase;letter-spacing:.17em;color:var(--cyan);font-weight:800;font-size:.78rem}.hero h1,.page-hero h1{font-size:clamp(2.8rem,6vw,5.5rem);line-height:1.02;letter-spacing:-.045em;max-width:930px;margin:18px 0 24px}.hero h1 span{color:var(--cyan)}.hero p{font-size:1.18rem;color:#c9dce5;max-width:680px}.hero-actions{display:flex;gap:14px;margin-top:34px}.trustbar{background:#fff;border-bottom:1px solid var(--line)}.trustgrid{display:grid;grid-template-columns:repeat(4,1fr)}.trustgrid div{padding:26px;border-right:1px solid var(--line)}.trustgrid strong{display:block;font-size:1.3rem;color:var(--navy)}.trustgrid span{font-size:.84rem;color:var(--muted)}section{padding:96px 0}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:42px}.section-head h2,.split h2{font-size:clamp(2.1rem,4vw,3.6rem);line-height:1.08;letter-spacing:-.04em;margin:8px 0}.section-head p{max-width:570px;color:var(--muted)}.grid{display:grid;gap:22px}.services{grid-template-columns:repeat(3,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;box-shadow:0 0 0 transparent;transition:.25s}.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#b5d8e4}.code{display:inline-grid;place-items:center;width:50px;height:50px;border-radius:14px;background:var(--ice);color:var(--blue);font-weight:900;font-size:1.2rem}.card h3{margin:22px 0 8px;font-size:1.35rem}.card p{margin:0;color:var(--muted)}.card .more{display:inline-block;margin-top:20px;color:var(--blue);font-weight:700}.dark{background:var(--navy);color:#fff}.dark .section-head p,.dark .muted{color:#b5cbd6}.featured{display:grid;grid-template-columns:1.1fr .9fr;min-height:540px}.thermo-visual{position:relative;background:radial-gradient(circle at 70% 40%,#fff574 0 4%,#ff9e2b 10%,#dc3154 25%,#6a1e7e 48%,#102b63 70%,#081828 100%);overflow:hidden}.thermo-visual:before{content:"";position:absolute;inset:12%;border:2px solid rgba(255,255,255,.35);border-radius:24px;box-shadow:0 0 80px rgba(255,139,61,.55)}.featured-copy{padding:70px;display:flex;flex-direction:column;justify-content:center;background:#0b263e}.featured-copy h2{font-size:3rem;line-height:1.08;margin:12px 0}.checks{list-style:none;padding:0}.checks li{margin:10px 0}.checks li:before{content:"✓";color:var(--cyan);font-weight:900;margin-right:11px}.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.photo{border-radius:var(--r);overflow:hidden;min-height:460px;background:url('../img/testing.jpg') center/cover;box-shadow:var(--shadow)}.stats{grid-template-columns:repeat(2,1fr);margin-top:28px}.stat{border-top:2px solid var(--cyan);padding-top:15px}.stat strong{font-size:2rem;display:block}.industries{grid-template-columns:repeat(5,1fr)}.industry{background:#f5f8fa;border-radius:14px;padding:24px;text-align:center;font-weight:700}.cta{background:linear-gradient(120deg,#087aa8,#0a3757);color:#fff;border-radius:24px;padding:55px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{font-size:2.3rem;line-height:1.15;margin:0}.page-hero{background:linear-gradient(110deg,#061827,#0b314d);color:#fff;padding:100px 0 80px;position:relative;overflow:hidden}.page-hero:after{content:"";position:absolute;width:450px;height:450px;border:1px solid rgba(41,197,230,.2);border-radius:50%;right:-100px;top:-170px}.page-hero h1{font-size:clamp(2.7rem,5vw,4.8rem);margin-bottom:18px}.page-hero p{max-width:720px;color:#bdd1db;font-size:1.1rem}.content{max-width:820px}.content h2{font-size:2rem;margin-top:48px}.content h3{margin-top:32px}.content p,.content li{color:#465c6a}.legal-note{background:#fff3cd;border-left:4px solid #e5a800;padding:18px;border-radius:8px}.downloads{grid-template-columns:repeat(2,1fr)}.download{display:flex;gap:18px;align-items:center}.download .code{flex:0 0 auto}.disabled{opacity:.65}.form-grid{grid-template-columns:1fr 1.25fr}.contact-panel{background:var(--navy);color:#fff;padding:40px;border-radius:var(--r)}.contact-panel p{color:#b8ced9}.form{padding:40px;border:1px solid var(--line);border-radius:var(--r)}.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field input,.field textarea,.field select{border:1px solid #bdcad2;border-radius:10px;padding:13px;background:#fff}.field textarea{min-height:140px}.fine{font-size:.78rem;color:var(--muted)}footer{background:#04111d;color:#d2e0e7;padding:65px 0 26px;margin-top:90px}.footergrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px}.footergrid h3{color:#fff}.footergrid a{display:block;margin:8px 0;color:#afc4cf}.subfooter{border-top:1px solid #233746;margin-top:45px;padding-top:22px;display:flex;justify-content:space-between;color:#829ba8;font-size:.82rem}.reveal{opacity:0;transform:translateY(16px);transition:.6s}.reveal.show{opacity:1;transform:none}@media(max-width:900px){.topbar{display:none}.nav{height:70px}.navlinks{display:none;position:absolute;top:70px;left:0;right:0;background:#071829;padding:24px;flex-direction:column;align-items:flex-start}.navlinks.open{display:flex}.menu{display:block}.nav .nav-cta{display:none}.hero{min-height:650px}.services,.industries{grid-template-columns:repeat(2,1fr)}.featured,.split,.form-grid{grid-template-columns:1fr}.thermo-visual{min-height:360px}.trustgrid{grid-template-columns:repeat(2,1fr)}.footergrid{grid-template-columns:1fr 1fr}.footergrid>div:first-child{grid-column:1/-1}}@media(max-width:600px){.wrap{width:min(100% - 28px,var(--max))}section{padding:68px 0}.hero .wrap{padding:70px 0}.hero-actions,.section-head,.cta{align-items:flex-start;flex-direction:column}.services,.industries,.downloads,.fields,.stats{grid-template-columns:1fr}.featured-copy{padding:40px 24px}.featured-copy h2{font-size:2.2rem}.cta{padding:36px 24px}.footergrid{grid-template-columns:1fr}.subfooter{flex-direction:column;gap:8px}.brand small{display:none}}

/* Genuine RöFi imagery */
.hero{background-image:linear-gradient(90deg,rgba(3,17,29,.97),rgba(5,29,47,.82) 53%,rgba(4,24,38,.32)),url('../img/hero.webp')}.photo{background-image:url('../img/workshop.webp')}.service-photo{height:190px;border-radius:13px;margin:-14px -14px 22px;object-fit:cover;width:calc(100% + 28px)}.gallery{grid-template-columns:repeat(4,1fr)}.gallery img{width:100%;height:260px;object-fit:cover;border-radius:14px}.address{padding:18px 0;border-top:1px solid rgba(255,255,255,.15)}.address strong{display:block;color:#fff}.address span{color:#b8ced9}.download:not(.disabled):hover .code{background:var(--cyan);color:#061827}@media(max-width:900px){.gallery{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.gallery{grid-template-columns:1fr}}


/* Transparent logo */
.brand img{width:150px;height:62px;object-fit:contain;background:transparent;border-radius:0;padding:0}.brand>span{display:none}@media(max-width:600px){.brand img{width:120px;height:54px}}

.thermo-gallery{grid-template-columns:repeat(2,1fr)}.thermo-gallery figure{margin:0;background:#071829;border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}.thermo-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover}.thermo-gallery figcaption{padding:14px 18px;color:#d8e8ef;font-size:.9rem}@media(max-width:700px){.thermo-gallery{grid-template-columns:1fr}}

/* Enlarged logo */
.nav{height:104px}.brand img{width:230px;height:88px}.navlinks{gap:18px}.footergrid .brand img{width:260px;height:104px}@media(max-width:1050px){.brand img{width:190px;height:76px}.nav{height:92px}.navlinks{gap:13px;font-size:.86rem}}@media(max-width:900px){.nav{height:86px}.brand img{width:185px;height:74px}.navlinks{top:86px}}@media(max-width:600px){.brand img{width:165px;height:68px}.nav{height:80px}.navlinks{top:80px}}

/* Large readable cropped logo */
.nav{height:132px}.brand img{width:350px;height:112px}.footergrid .brand img{width:380px;height:126px}@media(max-width:1100px){.nav{height:112px}.brand img{width:285px;height:94px}.navlinks{gap:11px;font-size:.82rem}}@media(max-width:900px){.nav{height:104px}.brand img{width:290px;height:92px}.navlinks{top:104px}}@media(max-width:600px){.nav{height:92px}.brand img{width:245px;height:78px}.navlinks{top:92px}}

/* High-contrast transparent logo */
.site-header{background:#020b13}.brand img{filter:brightness(1.45) saturate(1.18) contrast(1.15) drop-shadow(0 0 1px rgba(255,255,255,.95)) drop-shadow(0 0 7px rgba(52,205,255,.48))}.footergrid .brand img{filter:brightness(1.5) saturate(1.2) contrast(1.18) drop-shadow(0 0 1px rgba(255,255,255,.95)) drop-shadow(0 0 8px rgba(52,205,255,.5))}

/* Thermography contrast and encoding-safe check marks */
.featured-copy{color:#fff}.featured-copy h2{color:#fff}.featured-copy p,.featured-copy .muted,.featured-copy li{color:#c7dce6}.checks li{position:relative;padding-left:27px}.checks li:before{content:"";position:absolute;left:3px;top:.43em;width:9px;height:5px;border-left:3px solid var(--cyan);border-bottom:3px solid var(--cyan);transform:rotate(-45deg);margin:0}

/* Image-based industry cards with strong contrast */
.dark .industry{position:relative;isolation:isolate;overflow:hidden;min-height:170px;display:flex;align-items:flex-end;justify-content:flex-start;padding:24px;color:#fff;background:#0b263e;border:1px solid rgba(255,255,255,.18);box-shadow:0 14px 35px rgba(0,0,0,.22);text-align:left;font-size:1.05rem;letter-spacing:.01em;animation:industryIn .65s ease both}
.dark .industry:before{content:"";position:absolute;inset:0;z-index:-2;background-position:center;background-size:cover;transition:transform .55s ease,filter .55s ease;filter:saturate(.82) contrast(1.08)}
.dark .industry:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(3,15,26,.08) 18%,rgba(3,15,26,.94) 100%)}
.dark .industry:hover{transform:translateY(-7px);border-color:rgba(41,197,230,.75)}
.dark .industry:hover:before{transform:scale(1.08);filter:saturate(1.08) contrast(1.12)}
.dark .industry:nth-child(1):before{background-image:url('../img/hero.webp')}
.dark .industry:nth-child(2):before{background-image:url('../img/workshop.webp')}
.dark .industry:nth-child(3):before{background-image:url('../img/mt.webp')}
.dark .industry:nth-child(4):before{background-image:url('../img/weld.webp')}
.dark .industry:nth-child(5):before{background-image:url('../img/thermo-building-2.webp')}
.dark .industry:nth-child(2){animation-delay:.08s}.dark .industry:nth-child(3){animation-delay:.16s}.dark .industry:nth-child(4){animation-delay:.24s}.dark .industry:nth-child(5){animation-delay:.32s}
.dark .section-head p{color:#d4e5ed}
@keyframes industryIn{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){.dark .industry{animation:none}.dark .industry:before{transition:none}}
@media(max-width:900px){.industries{grid-template-columns:repeat(2,1fr)}.dark .industry{min-height:190px}}
@media(max-width:600px){.industries{grid-template-columns:1fr}.dark .industry{min-height:210px}}

/* Task-specific industry pictograms */
.dark .industry{min-height:250px;align-items:flex-end;padding:24px 22px;background:linear-gradient(145deg,#061725,#0b2a42);border-color:rgba(41,197,230,.24);font-size:1.08rem}
.dark .industry:before{inset:14px 14px 52px;background-size:contain;background-repeat:no-repeat;background-position:center;filter:none;transform:translateY(0);opacity:.96}
.dark .industry:after{background:linear-gradient(180deg,transparent 45%,rgba(2,12,21,.96) 90%)}
.dark .industry:hover:before{transform:translateY(-5px) scale(1.035);filter:drop-shadow(0 0 12px rgba(41,197,230,.28))}
.dark .industry:nth-child(1):before{background-image:url('../img/icon-anlagenbau.webp')}
.dark .industry:nth-child(2):before{background-image:url('../img/icon-maschinenbau.webp')}
.dark .industry:nth-child(3):before{background-image:url('../img/icon-giesserei.webp')}
.dark .industry:nth-child(4):before{background-image:url('../img/icon-zerspanung.webp')}
.dark .industry:nth-child(5):before{background-image:url('../img/icon-energie-netze.webp')}
.dark .industry:hover{background:linear-gradient(145deg,#082238,#0d3655);box-shadow:0 18px 42px rgba(0,0,0,.32),inset 0 0 0 1px rgba(41,197,230,.28)}