/* ============================================================
   Regiobrixx — Landing Page
   Ruhig, editorial, viel Weißraum.
   ============================================================ */

:root{
  --paper:#FBFAF8;
  --paper-alt:#F4F2EE;
  --ink:#16161A;
  --ink-soft:#6E6C68;
  --ink-faint:#9C9A94;
  --rule:#E3E0DA;
  --rule-soft:#EDEBE6;

  --wrap:940px;
  --wrap-wide:1320px;
  --gutter:24px;

  --serif:"Instrument Serif",Georgia,"Times New Roman",serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;

  --space-section:clamp(88px,12vw,176px);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;scroll-padding-top:100px;-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block}
p{margin:0}
a{color:inherit}

h1,h2{
  font-family:var(--serif);font-weight:400;letter-spacing:-.015em;
  line-height:1.06;margin:0;text-wrap:balance;
}
h1{font-size:clamp(2.9rem,7.2vw,5.4rem)}
h2{font-size:clamp(2.1rem,4.6vw,3.4rem)}
h3{
  font-family:var(--sans);font-size:1.0rem;font-weight:500;
  letter-spacing:-.005em;line-height:1.45;margin:0;
}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.wrap-wide{width:100%;max-width:var(--wrap-wide);margin-inline:auto;padding-inline:var(--gutter)}

.sr-only,.skip:not(:focus){
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.skip:focus{
  position:fixed;z-index:200;top:14px;left:14px;background:var(--ink);color:var(--paper);
  padding:12px 20px;font-size:.9rem;
}
:focus-visible{outline:1px solid var(--ink);outline-offset:4px}

.kicker{
  font-size:.7rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;
  color:var(--ink-faint);margin:0 0 clamp(20px,3vw,32px);
}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:saturate(1.1) blur(10px);
  border-bottom:1px solid var(--rule-soft);
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:78px}

.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;flex:0 0 auto}
.mark{
  align-self:center;display:grid;grid-template-columns:1fr 1fr;gap:3px;
  width:15px;height:15px;flex:0 0 auto;
}
.mark i{display:block;border-radius:50%;background:var(--ink)}
.brand-name{font-family:var(--serif);font-size:1.3rem;letter-spacing:-.01em}
.brand-by{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint)}

.nav{margin-left:auto;display:flex;align-items:center;gap:32px}
.nav a{
  text-decoration:none;font-size:.9rem;color:var(--ink-soft);
  position:relative;padding:4px 0;transition:color .2s;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav a:hover{color:var(--ink)}
.nav a:hover::after{transform:scaleX(1)}
.nav .nav-cta{color:var(--ink)}
.nav .nav-cta::after{transform:scaleX(1);background:var(--rule)}
.nav .nav-cta:hover::after{background:var(--ink)}

.burger{
  display:none;margin-left:auto;width:36px;height:36px;border:0;background:none;
  cursor:pointer;padding:0;flex-direction:column;justify-content:center;gap:5px;align-items:flex-end;
}
.burger span{display:block;width:22px;height:1px;background:var(--ink);transition:transform .25s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(3px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){transform:translateY(-3px) rotate(-45deg)}

/* ============ BUTTONS / LINKS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-size:.9rem;font-weight:500;letter-spacing:.01em;
  text-decoration:none;cursor:pointer;
  background:var(--ink);color:var(--paper);border:1px solid var(--ink);
  padding:15px 32px;border-radius:999px;transition:background .22s,color .22s;
}
.btn:hover{background:transparent;color:var(--ink)}

.link-arrow{
  display:inline-flex;align-items:center;gap:9px;text-decoration:none;
  font-size:.9rem;color:var(--ink);padding-bottom:3px;
  border-bottom:1px solid var(--rule);transition:border-color .22s;
}
.link-arrow::after{content:"→";transition:transform .25s ease}
.link-arrow:hover{border-bottom-color:var(--ink)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ============ PARALLAX ============ */
.parallax{
  position:relative;overflow:hidden;
  aspect-ratio:var(--ar,3/2);background:var(--paper-alt);
  --range:0px;--shift:0px;
}
.parallax img{
  position:absolute;top:50%;left:0;width:100%;
  height:calc(100% + var(--range) * 2);
  object-fit:cover;
  transform:translate3d(0,calc(-50% + var(--shift)),0);
}
.parallax[data-ratio="3/2"]{--ar:3/2}
.parallax[data-ratio="3/4"]{--ar:3/4}
.parallax[data-ratio="4/3"]{--ar:4/3}
.js-parallax .parallax{--range:clamp(18px,3.5vw,46px)}
.js-parallax .parallax img{will-change:transform}

/* ============ HERO ============ */
.hero{padding-top:clamp(72px,11vw,140px);padding-bottom:var(--space-section)}
.hero h1{margin-bottom:clamp(40px,6vw,64px)}
.hero-foot{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:clamp(28px,5vw,64px);
  align-items:end;padding-bottom:clamp(56px,8vw,96px);
}
.lead{font-size:1.06rem;color:var(--ink-soft);max-width:46ch}
.hero-actions{display:flex;align-items:center;gap:28px;flex-wrap:wrap}

.hero-figure{margin-bottom:clamp(48px,7vw,88px)}


.facts{
  list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--rule);border-block:1px solid var(--rule);
}
.facts li{background:var(--paper);padding:32px 0 32px 0}
.facts li+li{padding-left:clamp(24px,4vw,48px)}
.facts strong{
  display:block;font-family:var(--serif);font-weight:400;
  font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.1;letter-spacing:-.01em;
}
.facts span{display:block;margin-top:8px;font-size:.88rem;color:var(--ink-soft);line-height:1.5}

/* ============ SECTIONS ============ */
.section{padding-block:var(--space-section)}
.section-alt{background:var(--paper-alt)}

.sec-head{max-width:36ch;margin:0 auto clamp(56px,8vw,104px);text-align:center}
.sec-head-left{margin-inline:0;text-align:left;max-width:30ch}
.sec-head h2+.sec-sub{margin-top:clamp(20px,3vw,28px)}
.sec-sub{color:var(--ink-soft);font-size:1.02rem;max-width:52ch}
.sec-head:not(.sec-head-left) .sec-sub{margin-inline:auto}

/* ---- Trio ---- */
.trio{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(32px,5vw,64px);
}
.trio article{border-top:1px solid var(--rule);padding-top:26px}
.trio h3{margin-bottom:12px}
.trio p{color:var(--ink-soft);font-size:.96rem}

/* ---- Gallery ---- */
.gallery{
  display:grid;grid-template-columns:1fr 1fr;
  column-gap:clamp(24px,5vw,80px);row-gap:clamp(56px,8vw,120px);
}
.gallery figure{margin:0}
.gallery .offset{transform:translateY(clamp(32px,6vw,88px))}

.gallery figcaption{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--rule);
  font-size:.92rem;
}
.gallery figcaption em{font-style:normal;color:var(--ink-faint);font-size:.78rem;
  letter-spacing:.14em;text-transform:uppercase}

.aside-note{
  margin-top:clamp(96px,12vw,170px);max-width:46ch;color:var(--ink-soft);
  font-size:.96rem;padding-top:24px;border-top:1px solid var(--rule);
}

/* ---- Referenz ---- */
.reference{
  display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:clamp(40px,6vw,96px);align-items:center;
}
.reference-text h2+.sec-sub{margin-top:clamp(20px,3vw,28px)}
.reference-text .sec-sub+.sec-sub{margin-top:18px}
.reference-figures{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2.5vw,32px);
}
.reference-figures figure{margin:0}
.specs{
  display:flex;flex-wrap:wrap;gap:0;margin:clamp(28px,4vw,40px) 0 0;
  border-top:1px solid var(--rule);
}
.specs div{padding:16px clamp(20px,3vw,34px) 0 0}
.specs dt{
  font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);
}
.specs dd{margin:6px 0 0;font-family:var(--serif);font-size:1.25rem;line-height:1.1}

/* ---- Steps ---- */
.steps,.perks{list-style:none;margin:0;padding:0}
.steps li,.perks li{
  display:grid;grid-template-columns:72px minmax(0,19ch) minmax(0,1fr);
  gap:clamp(20px,4vw,48px);align-items:baseline;
  padding:clamp(26px,3.4vw,38px) 0;border-top:1px solid var(--rule);
}
.steps li:last-child,.perks li:last-child{border-bottom:1px solid var(--rule)}
.num{font-family:var(--serif);font-size:1.05rem;color:var(--ink-faint)}
.steps p,.perks p{color:var(--ink-soft);font-size:.96rem;max-width:56ch}

/* ---- Plans ---- */
.plans{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--rule);margin-bottom:clamp(72px,10vw,128px);
}
.plan{
  position:relative;
  padding:calc(clamp(36px,4.5vw,52px) + 18px) clamp(20px,3vw,40px) clamp(36px,4.5vw,52px) 0;
  display:flex;flex-direction:column;align-items:flex-start;gap:0;
}
.plan+.plan{border-left:1px solid var(--rule);padding-left:clamp(28px,3.5vw,48px)}
.plan-tag{
  position:absolute;top:22px;left:0;font-size:.64rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-faint);
}
.plan+.plan .plan-tag{left:clamp(28px,3.5vw,48px)}
.plan h3{font-family:var(--serif);font-size:2.2rem;font-weight:400;line-height:1}
.plan-for{margin-top:14px;font-size:.94rem;min-height:3em}
.plan-scope{margin-top:22px;font-size:.92rem;color:var(--ink-soft);line-height:1.65}
.plan-ask{
  margin-top:auto;padding-top:34px;font-size:.7rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-faint);
}
.plan .link-arrow{margin-top:18px}

/* ---- Matrix ---- */
.table-scroll{overflow-x:auto}
.matrix{width:100%;border-collapse:collapse;min-width:560px;font-size:.92rem}
.matrix th,.matrix td{padding:18px 12px;text-align:left;border-bottom:1px solid var(--rule-soft);vertical-align:middle}
.matrix thead th{
  border-bottom:1px solid var(--rule);font-weight:500;color:var(--ink-faint);
  font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;padding-bottom:16px;
}
.matrix thead th:not(:first-child),.matrix td{text-align:center;width:96px}
.matrix tbody th{font-weight:400;color:var(--ink);padding-left:0}
.matrix i{display:inline-block;width:6px;height:6px;border-radius:50%}
.matrix i.on{background:var(--ink)}
.matrix i.off{background:none;box-shadow:inset 0 0 0 1px var(--rule)}
.opt{font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint)}

/* ---- Margins ---- */
.margins{margin-top:clamp(72px,10vw,120px);padding-top:clamp(40px,5vw,60px);border-top:1px solid var(--rule)}
.margins-row{
  display:grid;grid-template-columns:auto auto minmax(0,1fr);
  gap:clamp(32px,6vw,80px);align-items:start;
}
.margins-row strong{
  display:block;font-family:var(--serif);font-weight:400;
  font-size:clamp(2.4rem,5vw,3.6rem);line-height:1;letter-spacing:-.02em;
}
.margins-row span{display:block;margin-top:10px;font-size:.86rem;color:var(--ink-soft)}
.margins-note{font-size:.9rem;color:var(--ink-soft);max-width:44ch}

/* ---- Split (Vertrieb / Über uns / Kontakt) ---- */
.split{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:clamp(40px,7vw,110px);align-items:start;
}
.split .sec-head{margin-bottom:0}

.rows{list-style:none;margin:0;padding:0}
.rows li{
  padding:22px 0;border-top:1px solid var(--rule);font-size:.98rem;color:var(--ink-soft);
}
.rows li:last-child{border-bottom:1px solid var(--rule)}

.about-body{display:grid;gap:28px;font-size:1.02rem;color:var(--ink-soft);max-width:54ch}
.about-start{padding-top:26px;border-top:1px solid var(--rule);color:var(--ink);font-size:.98rem}
.about-start .kicker{display:block;margin-bottom:10px}

/* ---- Form ---- */
.form{display:grid;gap:30px;max-width:540px}
.form label{
  display:grid;gap:10px;font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-faint);
}
.form input,.form select,.form textarea{
  font-family:var(--sans);font-size:1rem;font-weight:400;letter-spacing:normal;
  text-transform:none;color:var(--ink);
  padding:10px 0;border:0;border-bottom:1px solid var(--rule);border-radius:0;
  background:transparent;width:100%;transition:border-color .2s;
}
.form input::placeholder,.form textarea::placeholder{color:var(--ink-faint)}
.form input:focus,.form select:focus,.form textarea:focus{border-bottom-color:var(--ink);outline:none}
.form select{appearance:none;cursor:pointer;
  background-image:linear-gradient(45deg,transparent 50%,var(--ink-soft) 50%),linear-gradient(135deg,var(--ink-soft) 50%,transparent 50%);
  background-position:calc(100% - 9px) 19px,calc(100% - 4px) 19px;background-size:5px 5px;background-repeat:no-repeat}
.form textarea{resize:vertical;min-height:64px;line-height:1.7}
.form .btn{justify-self:start;margin-top:6px}
.field-count{
  font-size:.72rem;letter-spacing:normal;text-transform:none;
  color:var(--ink-faint);text-align:right;
}
.form-hint{font-size:.82rem;color:var(--ink-faint);line-height:1.6}
.form-hint.is-error{color:var(--ink)}
.form-hint a{color:inherit}

/* ============ RECHTSSEITEN ============ */
.legal{padding-block:clamp(56px,7vw,104px) clamp(72px,9vw,128px)}
.legal .wrap{max-width:720px}
.legal h1{
  font-family:var(--serif);font-weight:400;letter-spacing:-.015em;line-height:1.06;
  font-size:clamp(2.4rem,5vw,3.4rem);margin:0;
}
.legal-intro{
  margin-top:clamp(24px,3vw,32px);font-size:1.06rem;color:var(--ink-soft);max-width:54ch;
}
.legal section{
  margin-top:clamp(40px,5vw,64px);padding-top:clamp(28px,3.5vw,38px);
  border-top:1px solid var(--rule);
}
.legal h2{
  font-family:var(--sans);font-size:1rem;font-weight:500;letter-spacing:-.005em;
  line-height:1.45;margin:0 0 16px;
}
.legal p{color:var(--ink-soft);font-size:.98rem;max-width:62ch}
.legal p+p{margin-top:16px}
.legal a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;
  text-decoration-color:var(--rule);transition:text-decoration-color .2s}
.legal a:hover{text-decoration-color:var(--ink)}
.legal .address{color:var(--ink);line-height:1.8}

.legal-list{margin:0;display:grid;gap:12px}
.legal-list div{display:grid;grid-template-columns:120px minmax(0,1fr);gap:16px;align-items:baseline}
.legal-list dt{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint)}
.legal-list dd{margin:0;font-size:.98rem}

.legal-bullets{margin:0;padding-left:20px;color:var(--ink-soft);font-size:.98rem;max-width:62ch}
.legal-bullets li{margin-top:8px}
.legal-bullets li:first-child{margin-top:0}

/* Die Rechtsseiten tragen keinen Burger, also bleibt ihre Navigation
   auf jeder Breite sichtbar statt ins Overlay zu klappen. */
.nav-legal a[aria-current="page"]{color:var(--ink)}
.nav-legal a[aria-current="page"]::after{transform:scaleX(1);background:var(--rule)}

/* ============ FOOTER ============ */
.site-footer{border-top:1px solid var(--rule);padding-block:clamp(48px,6vw,72px)}
.footer-inner{display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between}
.footer-nav{display:flex;flex-wrap:wrap;gap:28px}
.footer-nav a{text-decoration:none;font-size:.88rem;color:var(--ink-soft);transition:color .2s}
.footer-nav a:hover{color:var(--ink)}
.footer-legal{
  width:100%;padding-top:28px;border-top:1px solid var(--rule-soft);
  font-size:.78rem;color:var(--ink-faint);display:flex;flex-wrap:wrap;gap:6px 24px;
}
.footer-legal a{color:inherit;text-decoration:none}
.footer-legal a:hover{color:var(--ink)}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .9s ease,transform .9s cubic-bezier(.22,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
.gallery .offset.reveal{transform:translateY(calc(clamp(32px,6vw,88px) + 14px))}
.gallery .offset.reveal.in{transform:translateY(clamp(32px,6vw,88px))}

/* ============ RESPONSIVE ============ */
@media (max-width:900px){
  .hero-foot{grid-template-columns:1fr;align-items:start;gap:34px}
  .trio{grid-template-columns:1fr;gap:0}
  .trio article{padding-block:26px}
  .trio article+article{border-top:1px solid var(--rule)}
  .trio article:last-child{border-bottom:1px solid var(--rule)}
  .steps li,.perks li{grid-template-columns:48px minmax(0,1fr);row-gap:10px}
  .steps li h3,.perks li h3{grid-column:2}
  .steps li p,.perks li p{grid-column:2}
  .plans{grid-template-columns:1fr;border-top:0}
  .plan{border-top:1px solid var(--rule);padding-right:0;padding-block:54px 36px}
  .plan+.plan{border-left:0;padding-left:0}
  .plan-for{min-height:0}
  .plan-ask{padding-top:26px}
  .margins-row{grid-template-columns:1fr 1fr;row-gap:36px}
  .margins-note{grid-column:1/-1}
  .split{grid-template-columns:1fr;gap:48px}
  .reference{grid-template-columns:1fr;gap:clamp(36px,5vw,48px)}
  .gallery .offset,.gallery .offset.reveal.in{transform:none}
  .gallery .offset.reveal{transform:translateY(14px)}
}

@media (max-width:760px){
  .nav{
    position:fixed;inset:78px 0 auto;flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);border-bottom:1px solid var(--rule);padding:8px var(--gutter) 28px;
    transform:translateY(-130%);transition:transform .35s cubic-bezier(.22,.7,.3,1);
    max-height:calc(100dvh - 78px);overflow-y:auto;
  }
  .nav.open{transform:none}
  /* Marke und drei Links passen nebeneinander nicht aufs Handy,
     also bekommt die Navigation eine eigene Zeile. */
  .site-header:has(.nav-legal) .header-inner{
    flex-wrap:wrap;min-height:0;padding-block:16px;gap:12px 20px;
  }
  .nav-legal{
    position:static;transform:none;flex-direction:row;flex-wrap:wrap;
    width:100%;margin-left:0;gap:20px;
    background:none;border:0;padding:0;max-height:none;overflow:visible;
  }
  .nav-legal a{padding:2px 0;font-size:.88rem;border-bottom:0}
  .nav-legal a::after{display:none}
  .nav a{padding:18px 0;font-size:1.05rem;border-bottom:1px solid var(--rule-soft)}
  .nav a::after{display:none}
  .burger{display:flex}
  .facts{grid-template-columns:1fr;gap:0;background:none}
  .facts li{padding:24px 0;border-top:1px solid var(--rule-soft)}
  .facts li:first-child{border-top:0}
  .facts li+li{padding-left:0}
}

@media (max-width:620px){
  body{font-size:16px}

  .gallery{grid-template-columns:1fr;row-gap:48px}
  .hero-figure img{aspect-ratio:4/3}
  .margins-row{grid-template-columns:1fr}
  .specs div{padding-right:28px}
  .footer-inner{flex-direction:column;align-items:flex-start;gap:20px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js-parallax .parallax{--range:0px}
  .parallax img{transform:translate3d(0,-50%,0)}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  .gallery .offset.reveal{transform:translateY(clamp(32px,6vw,88px))}
}

@media print{
  .site-header,.burger,.form{display:none}
  .section-alt{background:none}
  .reveal{opacity:1;transform:none}
}