/* phase2 projekt GmbH – statische Website */
:root{
  --orange:#fb8b0d;
  --orange-dark:#d9740a;
  --text:#3b3735;
  --muted:#6b6663;
  --bg:#d9d9d9;
  --tile:#e4e4e4;
  --header:#edf1f8;
  --navy:#0e2638;
  --navy-2:#163449;
  --radius:14px;
  --font:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;font-size:16px;display:flex;flex-direction:column;min-height:100vh}
img{max-width:100%;height:auto;display:block}
a{color:var(--orange-dark)}
a:hover{color:var(--orange)}

/* Header */
.site-header{background:var(--header);border-bottom:1px solid #d5dbe6}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 20px}
.brand img{height:88px;width:auto}
.nav{display:flex;gap:6px;flex-wrap:wrap}
.nav a{color:#8a8582;text-decoration:none;font-weight:600;font-size:.88rem;letter-spacing:.02em;padding:10px 12px;border-top:3px solid transparent}
.nav a:hover{color:var(--text)}
.nav a[aria-current="page"]{color:var(--text);border-top-color:var(--orange)}
.nav-toggle{display:none;background:none;border:0;font-size:1.8rem;color:var(--text);cursor:pointer;padding:4px 8px}

.wrap{max-width:1140px;margin:0 auto}
main{flex:1;padding:48px 20px 64px}
h1,h2,h3{line-height:1.25;color:var(--text)}
h1{font-size:clamp(1.6rem,3vw,2.1rem);text-align:center;margin:0 0 36px}
h2{font-size:1.35rem;margin:32px 0 12px}
.lead{max-width:720px;margin:0 auto 32px;text-align:center;font-size:1.08rem}

/* Home-Hub */
.hub{display:grid;grid-template-columns:repeat(4,130px);grid-template-rows:repeat(4,130px);gap:22px;justify-content:center;margin:0 auto}
/* Kacheln – modern: hell, feine Kontur, Logos in Graustufen -> Farbe beim Hover */
.tile{position:relative;overflow:hidden;background:rgba(255,255,255,.88);backdrop-filter:blur(6px);
  border:1px solid rgba(20,30,45,.07);border-radius:22px;
  box-shadow:0 1px 2px rgba(16,24,40,.05),0 6px 16px rgba(16,24,40,.06);
  display:flex;align-items:center;justify-content:center;padding:18px;text-decoration:none;
  transition:transform .4s cubic-bezier(.2,.8,.2,1),box-shadow .4s,border-color .4s;
  animation:tileIn .6s cubic-bezier(.2,.8,.2,1) both}
.tile img{max-height:100%;object-fit:contain;filter:grayscale(1);opacity:.72;
  transition:filter .4s,opacity .4s,transform .4s cubic-bezier(.2,.8,.2,1)}
/* orange Akzentlinie unten */
.tile::before{content:"";position:absolute;left:18%;right:18%;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:var(--orange);transform:scaleX(0);transition:transform .4s cubic-bezier(.2,.8,.2,1)}
/* Firmenname beim Hover */
.tile[data-label]::after{content:attr(data-label);position:absolute;left:0;right:0;bottom:9px;text-align:center;
  font-size:.7rem;font-weight:600;letter-spacing:.04em;color:var(--muted);
  opacity:0;transform:translateY(6px);transition:opacity .3s,transform .3s}
.tile:hover,.tile:focus-visible{transform:translateY(-6px);border-color:rgba(251,139,13,.35);
  box-shadow:0 2px 4px rgba(16,24,40,.06),0 18px 36px rgba(16,24,40,.12);outline:none}
.tile:hover img,.tile:focus-visible img{filter:none;opacity:1;transform:scale(1.06) translateY(-6px)}
.tile:hover::before,.tile:focus-visible::before{transform:scaleX(1)}
.tile:hover::after,.tile:focus-visible::after{opacity:1;transform:none}
/* große Mittel-Kachel mit Verlaufsrahmen */
.tile.center{grid-column:2/4;grid-row:2/4;padding:34px;border:2px solid transparent;
  background:linear-gradient(#fff,#fff) padding-box,linear-gradient(135deg,var(--orange),#ffd8a8 45%,#e6e9ef) border-box;
  box-shadow:0 2px 6px rgba(16,24,40,.06),0 24px 48px rgba(16,24,40,.10)}
.tile.center img{filter:none;opacity:1}
.tile.center:hover img{transform:scale(1.04)}
/* gestaffeltes Einblenden */
@keyframes tileIn{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:none}}
.hub .tile:nth-child(1){animation-delay:.05s}.hub .tile:nth-child(2){animation-delay:.10s}
.hub .tile:nth-child(3){animation-delay:.15s}.hub .tile:nth-child(4){animation-delay:.20s}
.hub .tile:nth-child(5){animation-delay:.25s}.hub .tile:nth-child(6){animation-delay:0s}
.hub .tile:nth-child(7){animation-delay:.30s}.hub .tile:nth-child(8){animation-delay:.35s}
.hub .tile:nth-child(9){animation-delay:.40s}.hub .tile:nth-child(10){animation-delay:.45s}
.hub .tile:nth-child(11){animation-delay:.50s}.hub .tile:nth-child(12){animation-delay:.55s}
.hub .tile:nth-child(13){animation-delay:.60s}
/* Touch-Geräte: Logos farbig, Name immer sichtbar */
@media (hover:none){
  .tile img{filter:none;opacity:1}
  .tile[data-label]{padding-bottom:26px}
  .tile[data-label]::after{opacity:1;transform:none}
}
@media (prefers-reduced-motion:reduce){
  .tile,.tile img,.tile::before,.tile::after{animation:none;transition:none}
}
.hub-intro{max-width:640px;margin:48px auto 0;text-align:center}
.btn{display:inline-block;background:var(--orange);color:#fff;text-decoration:none;font-weight:600;padding:10px 26px;border-radius:999px;margin-top:8px}
.btn:hover{background:var(--orange-dark);color:#fff}

/* Leistungen-Karten */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:24px}
.card{border-radius:var(--radius);padding:28px 24px;color:#fff;text-decoration:none;display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;min-height:300px;transition:transform .2s,box-shadow .2s;box-shadow:0 6px 18px rgba(0,0,0,.12)}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 26px rgba(0,0,0,.18);color:#fff}
.card.orange{background:var(--orange)}
.card.grey{background:#9b9b9b}
.card h3{color:#fff;margin:0;font-size:1.25rem}
.card img{height:90px;width:auto;margin:6px 0}
.card p{margin:0;font-size:.98rem}
.card .more{margin-top:auto;font-weight:600;font-size:.9rem;opacity:.95}

/* Inhaltsseiten */
.content{max-width:820px;margin:0 auto;background:#efefef;border-radius:var(--radius);padding:36px clamp(20px,5vw,48px);box-shadow:0 4px 16px rgba(0,0,0,.06)}
.content h1{text-align:left;margin-bottom:20px}
.content ul{padding-left:1.2em}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:24px 0}
.gallery img{border-radius:10px;width:100%;object-fit:cover}
.partners{display:flex;gap:32px;align-items:center;flex-wrap:wrap;margin-top:12px}
.partners img{height:70px;width:auto}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-top:8px}
.contact-box{background:#fff;border-radius:12px;padding:22px}
.contact-box h2{margin-top:0}
.big-link{font-size:1.15rem;font-weight:600;text-decoration:none}

/* Footer */
.site-footer{background:linear-gradient(180deg,var(--navy-2),var(--navy));color:#c9d4dd;font-size:.92rem}
.site-footer .wrap{padding:28px 20px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;text-align:center}
.site-footer a{color:#fff;text-decoration:none}
.site-footer a:hover{color:var(--orange)}
.footer-links{text-align:center;padding:0 20px 24px}
.footer-links a{margin:0 8px}

@media (max-width:760px){
  .brand img{height:64px}
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:92px;background:var(--header);flex-direction:column;padding:8px 20px 16px;border-bottom:1px solid #d5dbe6;z-index:10}
  .nav.open{display:flex}
  .nav a{border-top:0;border-left:3px solid transparent}
  .nav a[aria-current="page"]{border-left-color:var(--orange)}
  .site-header{position:relative}
  .hub{grid-template-columns:repeat(3,1fr);grid-template-rows:none;gap:14px;max-width:420px}
  .hub .tile{aspect-ratio:1}
  .tile.center{grid-column:1/-1;grid-row:1;aspect-ratio:auto;padding:24px}
  .tile.center img{max-height:180px}
  .site-footer .wrap{grid-template-columns:1fr}
}
@media (max-width:760px){.hub>span:empty{display:none}}
/* tiQa-Logo hat weiße Schrift -> auf heller Kachel abdunkeln (Kachelfarbe bleibt einheitlich) */
.tile.dark img,.tile.dark:hover img,.tile.dark:focus-visible img{filter:brightness(.35);opacity:1}

/* ================= Startseite-Variante "Satelliten" ================= */
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.orbit-wrap{--S:700px;display:flex;justify-content:center;padding:10px 0;
  background:radial-gradient(circle at center,rgba(255,255,255,.55) 0,rgba(255,255,255,0) 55%)}
.orbit-system{position:relative;width:var(--S);height:var(--S)}
.ring{position:absolute;left:50%;top:50%;border-radius:50%;border:1px dashed rgba(59,55,53,.22);
  animation:orbit 120s linear infinite}
.ring-outer{--D:calc(var(--S)*.86);--sat:calc(var(--S)*.135);--T:120s}
.ring-inner{--D:calc(var(--S)*.54);--sat:calc(var(--S)*.12);--T:80s;animation-direction:reverse}
.ring{width:var(--D);height:var(--D);margin:calc(var(--D)/-2) 0 0 calc(var(--D)/-2);animation-duration:var(--T)}
@keyframes orbit{to{rotate:360deg}}
.sat{position:absolute;left:50%;top:50%;width:var(--sat);height:var(--sat);
  margin:calc(var(--sat)/-2) 0 0 calc(var(--sat)/-2);
  transform:rotate(var(--a)) translate(calc(var(--D)/2)) rotate(calc(var(--a)*-1));text-decoration:none;z-index:2}
/* Gegenrotation, damit die Logos immer aufrecht bleiben */
.sat-body{display:flex;align-items:center;justify-content:center;width:100%;height:100%;border-radius:50%;
  background:#fff;border:1px solid rgba(20,30,45,.08);padding:11%;position:relative;
  box-shadow:0 2px 4px rgba(16,24,40,.06),0 10px 24px rgba(16,24,40,.10);
  animation:orbit var(--T) linear infinite reverse;
  transition:box-shadow .35s,border-color .35s,scale .35s cubic-bezier(.2,.8,.2,1)}
.ring-inner .sat-body{animation-direction:normal}
.sat img{max-height:100%;object-fit:contain;filter:grayscale(1);opacity:.75;transition:filter .35s,opacity .35s}
.sat.dark img,.sat.dark:hover img{filter:brightness(.35);opacity:1}
.sat-label{position:absolute;top:calc(100% + 8px);left:50%;translate:-50% 0;white-space:nowrap;
  font-size:.72rem;font-weight:600;color:var(--text);background:#fff;padding:3px 10px;border-radius:999px;
  box-shadow:0 4px 12px rgba(16,24,40,.12);opacity:0;transition:opacity .25s;pointer-events:none}
.sat:hover .sat-body,.sat:focus-visible .sat-body{scale:1.14;border-color:var(--orange);
  box-shadow:0 0 0 4px rgba(251,139,13,.18),0 16px 32px rgba(16,24,40,.16)}
.sat:hover img,.sat:focus-visible img{filter:none;opacity:1}
.sat:hover .sat-label,.sat:focus-visible .sat-label{opacity:1}
.sat:hover,.sat:focus-visible{z-index:5;outline:none}
/* Beim Darüberfahren hält das System an */
.orbit-system:hover .ring,.orbit-system:hover .sat-body,
.orbit-system:focus-within .ring,.orbit-system:focus-within .sat-body{animation-play-state:paused}
/* Zentrum */
.sun{position:absolute;left:50%;top:50%;width:calc(var(--S)*.3);height:calc(var(--S)*.3);translate:-50% -50%;
  border-radius:50%;display:flex;align-items:center;justify-content:center;padding:calc(var(--S)*.045);z-index:3;
  border:2px solid transparent;
  background:linear-gradient(#fff,#fff) padding-box,linear-gradient(135deg,var(--orange),#ffd8a8 50%,#e6e9ef) border-box;
  box-shadow:0 20px 50px rgba(16,24,40,.14);animation:pulse 4s ease-in-out infinite}
.sun img{transition:scale .35s}
.sun:hover img{scale:1.05}
@keyframes pulse{0%,100%{box-shadow:0 20px 50px rgba(16,24,40,.14),0 0 0 0 rgba(251,139,13,.25)}
  50%{box-shadow:0 20px 50px rgba(16,24,40,.14),0 0 0 18px rgba(251,139,13,0)}}
@media (max-width:760px){
  .orbit-wrap{--S:min(94vw,420px)}
  .sat-label{display:none}
  .sat img{filter:none;opacity:1}
}
@media (hover:none){.sat img{filter:none;opacity:1}}
@media (prefers-reduced-motion:reduce){.ring,.sat-body,.sun{animation:none}}

/* Verbindungsleitungen Satellit -> Zentrum ("Datenleitung") */
.beam{position:absolute;left:50%;top:50%;height:2px;margin-top:-1px;z-index:-1;pointer-events:none;
  width:calc(var(--D)/2 - var(--sat)/2 - var(--S)*.15 + 6px);
  transform-origin:0 50%;transform:rotate(calc(var(--a) + 180deg)) translate(calc(var(--sat)/2 - 3px));
  background:repeating-linear-gradient(90deg,rgba(59,55,53,.28) 0 7px,transparent 7px 12px);
  transition:background .3s}
/* Datenpaket, das von der Mitte zum Satelliten läuft */
.beam::after{content:"";position:absolute;top:50%;left:100%;width:8px;height:8px;margin:-4px 0 0 -4px;border-radius:50%;
  background:var(--orange);box-shadow:0 0 8px 2px rgba(251,139,13,.6);
  animation:packet 3.2s linear infinite;animation-delay:var(--d,0s)}
@keyframes packet{0%{left:100%;opacity:0}10%{opacity:1}90%{opacity:1}100%{left:0;opacity:0}}
.sat:hover .beam,.sat:focus-visible .beam{background:repeating-linear-gradient(90deg,var(--orange) 0 7px,transparent 7px 12px)}
.sat:hover .beam::after,.sat:focus-visible .beam::after{animation-duration:1.2s}
.sat{isolation:isolate}
@media (prefers-reduced-motion:reduce){.beam::after{display:none}}

/* Kennzahlen-Leiste */
.stats{max-width:900px;margin:28px auto 0;display:grid;grid-template-columns:repeat(4,1fr);
  background:rgba(255,255,255,.9);border:1px solid rgba(20,30,45,.07);border-radius:22px;
  box-shadow:0 2px 4px rgba(16,24,40,.05),0 14px 32px rgba(16,24,40,.08);overflow:hidden}
.stat{display:flex;flex-direction:column;align-items:center;text-align:center;padding:24px 14px 22px;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:22%;bottom:22%;width:1px;background:rgba(59,55,53,.12)}
.stat-num{font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:800;line-height:1.1;color:var(--orange);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat-label{margin-top:6px;font-size:.82rem;font-weight:600;color:var(--muted);letter-spacing:.02em}
@media (max-width:760px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3)::before{display:none}
  .stat:nth-child(n+3){border-top:1px solid rgba(59,55,53,.1)}
}