/* Self-hosted fonts (no request to Google's servers, so visitor IPs are
   never transmitted to Google just for loading a typeface) */
@font-face{
  font-family:'Space Grotesk';
  font-style:normal;
  font-weight:400 700;
  font-display:swap;
  src:url('fonts/space-grotesk-variable.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Sans';
  font-style:normal;
  font-weight:400 600;
  font-display:swap;
  src:url('fonts/ibm-plex-sans-variable.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal;
  font-weight:400;
  font-display:swap;
  src:url('fonts/ibm-plex-mono-400.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal;
  font-weight:500;
  font-display:swap;
  src:url('fonts/ibm-plex-mono-500.woff2') format('woff2');
}

:root{
  --ink:#16232e;        /* Tiefblau */
  --steel:#33526c;      /* Stahlblau */
  --sage:#537d67;       /* Salbeigrün – Logo-Grün */
  --sage-light:#a7c4ac; /* Hellgrün, Flächen */
  --sage-pale:#e7efe6;  /* Grün-Hauch für Flächen */
  --stone:#f2f1ec;      /* Steingrau, Seitenhintergrund */
  --paper:#fbfbf8;
  --graphite:#454b50;   /* Fließtext */
  --line:#d7d8d1;
  --radius:2px;
  --maxw:1200px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--stone);
  color:var(--graphite);
  font-family:'IBM Plex Sans', sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Space Grotesk', sans-serif;
  color:var(--ink);
  margin:0 0 .5em 0;
  letter-spacing:-.01em;
}
a{color:inherit;}
img,svg{display:block;max-width:100%;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.72rem;
  color:var(--sage);
  font-weight:500;
  display:flex;align-items:center;gap:10px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;background:var(--sage);
  display:inline-block;
}
section{position:relative;}
::selection{background:var(--sage-light);color:var(--ink);}

/* ---------- Buttons ---------- */
.btn{
  font-family:'IBM Plex Sans', sans-serif;
  font-weight:600;
  font-size:.95rem;
  letter-spacing:.01em;
  padding:15px 28px;
  border-radius:var(--radius);
  border:1.5px solid transparent;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  transition:transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
}
.btn-primary{background:var(--sage);color:#fff;}
.btn-primary:hover{background:#456b58;transform:translateY(-2px);}
.btn-ghost{border-color:rgba(22,35,46,.25);color:var(--ink);background:transparent;}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px);}
.btn-on-dark{border-color:rgba(255,255,255,.35);color:#fff;}
.btn-on-dark:hover{border-color:#fff;transform:translateY(-2px);}
.btn svg{width:16px;height:16px;flex-shrink:0;}

/* ---------- Header ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(251,251,248,.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:80px;
}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;}
.logo svg{width:34px;height:34px;}
.logo-text{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.15rem;color:var(--ink);line-height:1;}
.logo-text span{display:block;font-family:'IBM Plex Mono',monospace;font-weight:400;font-size:.62rem;letter-spacing:.16em;color:var(--sage);margin-top:4px;}
nav.main-nav{display:flex;align-items:center;gap:40px;}
nav.main-nav ul{list-style:none;display:flex;gap:34px;margin:0;padding:0;}
nav.main-nav a{text-decoration:none;color:var(--ink);font-size:.92rem;font-weight:500;position:relative;}
nav.main-nav a::after{
  content:"";position:absolute;left:0;bottom:-6px;width:0;height:1.5px;background:var(--sage);
  transition:width .25s ease;
}
nav.main-nav a:hover::after{width:100%;}
.nav-cta{display:flex;align-items:center;gap:22px;}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;}
.burger span{width:24px;height:2px;background:var(--ink);display:block;transition:.25s;}

/* ---------- Page header (sub-pages) ---------- */
.page-hero{padding:160px 0 70px;background:var(--stone);
  background-image:repeating-linear-gradient(0deg, rgba(22,35,46,.05) 0 1px, transparent 1px 64px),
                    repeating-linear-gradient(90deg, rgba(22,35,46,.05) 0 1px, transparent 1px 64px);
}
.page-hero h1{font-size:clamp(2rem,4vw,2.8rem);margin-top:14px;}
.page-hero p{color:var(--steel);max-width:56ch;}

/* ---------- Hero ---------- */
.hero{
  padding:150px 0 90px;
  overflow:hidden;
  background:
    linear-gradient(var(--stone),var(--stone)),
    repeating-linear-gradient(0deg, rgba(22,35,46,.05) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(22,35,46,.05) 0 1px, transparent 1px 64px);
}
.hero .wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.hero h1{
  font-size:clamp(2.4rem,4.6vw,3.7rem);
  line-height:1.06;
  margin:18px 0 22px;
}
.hero h1 em{
  font-style:normal;color:var(--sage);
}
.hero p.lead{
  font-size:1.08rem;color:var(--graphite);max-width:46ch;margin:0 0 34px;
}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;}
.hero-art{position:relative;height:520px;}
.hero-art svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible;}

/* Logo-Loop: Linien zeichnen sich, Flächen "bebauen" sich, dann Reset */
.logo-line{
  fill:none;stroke:var(--ink);stroke-width:7;
  stroke-linejoin:round;stroke-linecap:round;
  stroke-dasharray:1000;stroke-dashoffset:1000;
  opacity:0;
  animation:buildLine 9s cubic-bezier(.65,0,.35,1) infinite;
}
.logo-fill{
  fill:var(--sage);opacity:0;
  animation:buildFill 9s ease infinite;
}
@keyframes buildLine{
  0%{stroke-dashoffset:1000;opacity:0;}
  4%{opacity:1;}
  38%{stroke-dashoffset:0;opacity:1;}
  82%{stroke-dashoffset:0;opacity:1;}
  93%{opacity:0;stroke-dashoffset:0;}
  100%{opacity:0;stroke-dashoffset:1000;}
}
@keyframes buildFill{
  0%,44%{opacity:0;}
  60%{opacity:.62;}
  82%{opacity:.62;}
  93%,100%{opacity:0;}
}
@media (prefers-reduced-motion:reduce){
  .logo-line{animation:none;stroke-dashoffset:0;opacity:1;}
  .logo-fill{animation:none;opacity:.55;}
}

.trust-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--paper);
}
.trust-strip .wrap{
  display:flex;flex-wrap:wrap;justify-content:center;align-items:center;
  gap:14px;
  padding:22px 32px;font-family:'IBM Plex Mono',monospace;font-size:.76rem;
  letter-spacing:.05em;color:var(--steel);text-transform:uppercase;text-align:center;
}
.trust-strip .wrap .dot{
  width:4px;height:4px;border-radius:50%;background:var(--sage-light);flex-shrink:0;
}

/* ---------- Section shell ---------- */
.section{padding:120px 0;}
.section-head{
  max-width:640px;margin:0 auto 64px;text-align:left;
}
.section-head h2{font-size:clamp(1.9rem,3vw,2.6rem);margin-top:14px;}
.section-head p{color:var(--steel);font-size:1.02rem;max-width:52ch;}
.section.on-dark{background:var(--ink);color:#cdd6dc;}
.section.on-dark h2, .section.on-dark h3{color:#fff;}
.section.on-dark .section-head p{color:#9fb0bc;}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto;}

/* ---------- Leistungen: Accordion ---------- */
.accordion-list{
  display:flex;flex-direction:column;gap:1px;
  background:var(--line);border:1px solid var(--line);
}
.acc-item{background:var(--paper);}
.acc-item summary{
  list-style:none;cursor:pointer;
  padding:26px 34px;display:flex;align-items:center;gap:22px;
  transition:background .25s ease;
}
.acc-item summary:hover{background:#fff;}
.acc-item summary::-webkit-details-marker{display:none;}
.acc-item .icon{width:38px;height:38px;flex-shrink:0;}
.acc-item .icon svg{width:100%;height:100%;stroke:var(--sage);}
.acc-item summary .head-text{flex:1;}
.acc-item summary h3{font-size:1.08rem;margin:0 0 4px;}
.acc-item summary .sub{font-size:.86rem;color:var(--steel);}
.acc-item .plus{width:20px;height:20px;position:relative;flex-shrink:0;}
.acc-item .plus::before,.acc-item .plus::after{
  content:"";position:absolute;background:var(--sage);
}
.acc-item .plus::before{width:100%;height:1.5px;top:50%;left:0;transform:translateY(-50%);}
.acc-item .plus::after{height:100%;width:1.5px;left:50%;top:0;transform:translateX(-50%);transition:transform .25s ease;}
.acc-item[open] .plus::after{transform:translateX(-50%) scaleY(0);}
.acc-item .acc-body{padding:0 34px 32px 94px;}
.acc-body ul{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:9px 28px;}
.acc-body li{position:relative;padding-left:17px;font-size:.92rem;color:var(--graphite);}
.acc-body li::before{
  content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;background:var(--sage);border-radius:50%;
}

/* ---------- Feature band (Alles aus einer Hand) ---------- */
.feature-band{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:start;}
.feature-band p.lead{color:#cdd6dc;font-size:1.03rem;max-width:44ch;}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 36px;margin:0;padding:0;list-style:none;}
.feature-list li{display:flex;gap:12px;align-items:flex-start;font-size:.94rem;color:#cdd6dc;}
.feature-list li svg{flex-shrink:0;margin-top:2px;width:17px;height:17px;stroke:var(--sage-light);}

/* ---------- Ablauf (Prozess) ---------- */
.process{
  display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative;
}
.process::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.25), transparent);
}
.step{position:relative;}
.step-num{
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1.6rem;
  color:var(--sage-light);
  background:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border:1.5px solid rgba(167,196,172,.4);border-radius:50%;
  margin-bottom:22px;
}
.step h3{font-size:1.05rem;margin-bottom:8px;}
.step p{font-size:.92rem;color:#9fb0bc;margin:0;}

/* ---------- Ueber mich / Parallax band ---------- */
.about{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center;
}
.about-figure{
  position:relative;height:420px;border:1px solid var(--line);background:var(--paper);
  overflow:hidden;
}
.about-figure .layer{position:absolute;inset:0;}
.grid-bg{
  background-image:repeating-linear-gradient(0deg, rgba(22,35,46,.06) 0 1px, transparent 1px 40px),
                    repeating-linear-gradient(90deg, rgba(22,35,46,.06) 0 1px, transparent 1px 40px);
}
.about p.lead{font-size:1.05rem;color:var(--ink);max-width:50ch;}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;}
.stat{border-top:1.5px solid var(--sage);padding-top:14px;}
.stat b{font-family:'Space Grotesk',sans-serif;font-size:1.9rem;color:var(--ink);display:block;}
.stat span{font-size:.82rem;color:var(--steel);}

.credentials{margin-top:36px;border-top:1px solid var(--line);}
.credentials dl{display:grid;grid-template-columns:auto 1fr;gap:12px 22px;margin:0;padding:24px 0 0;}
.credentials dt{
  font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.05em;
  text-transform:uppercase;color:var(--sage);white-space:nowrap;padding-top:2px;
}
.credentials dd{margin:0;font-size:.95rem;color:var(--ink);}

/* ---------- Kontakt ---------- */
.contact-section{background:var(--paper);border-top:1px solid var(--line);}
.contact-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;
}
.tasks{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 36px;}
.task-chip{
  font-family:'IBM Plex Mono',monospace;font-size:.78rem;letter-spacing:.03em;
  padding:9px 16px;border:1px solid var(--line);border-radius:20px;background:#fff;
  cursor:pointer;color:var(--steel);transition:.2s;
}
.task-chip:hover, .task-chip.active{
  border-color:var(--sage);color:var(--sage);background:var(--sage-pale);
}
.contact-info{display:flex;flex-direction:column;gap:18px;margin-bottom:10px;}
.contact-info-item{display:flex;gap:14px;align-items:flex-start;}
.contact-info-item .ico{
  width:38px;height:38px;flex-shrink:0;border:1px solid var(--line);border-radius:50%;
  display:flex;align-items:center;justify-content:center;background:#fff;
}
.contact-info-item .ico svg{width:17px;height:17px;stroke:var(--sage);}
.contact-info-item h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--steel);
  font-family:'IBM Plex Mono',monospace;font-weight:500;margin:0 0 4px;}
.contact-info-item p, .contact-info-item a{margin:0;font-size:.98rem;color:var(--ink);text-decoration:none;}
.contact-info-item a:hover{color:var(--sage);}

.contact-card{
  background:var(--ink);color:#fff;padding:48px;border-radius:4px;
}
.contact-card h3{color:#fff;font-size:1.3rem;margin-bottom:6px;}
.contact-card p.small{color:#9fb0bc;font-size:.9rem;margin-bottom:30px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:.78rem;letter-spacing:.04em;color:#9fb0bc;margin-bottom:7px;font-family:'IBM Plex Mono',monospace;text-transform:uppercase;}
.field input, .field select, .field textarea{
  width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);
  color:#fff;padding:13px 14px;border-radius:2px;font-family:'IBM Plex Sans',sans-serif;font-size:.95rem;
}
.field select option{background:var(--ink);color:#fff;}
.field input::placeholder, .field textarea::placeholder{color:#7c8b96;}

/* Custom dropdown (Tätigkeit) — native <select> popups ignore CSS
   background on several desktop browsers, so this is fully CSS-driven
   and renders identically on every platform. */
.custom-select{position:relative;}
.custom-select-trigger{
  width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);
  color:#fff;padding:13px 14px;border-radius:2px;font-family:'IBM Plex Sans',sans-serif;font-size:.95rem;
  display:flex;align-items:center;justify-content:space-between;gap:10px;cursor:pointer;text-align:left;
}
.custom-select-trigger:focus-visible{outline:2px solid var(--sage);outline-offset:2px;}
.custom-select-caret{width:14px;height:14px;flex-shrink:0;stroke:#9fb0bc;transition:transform .2s ease;}
.custom-select.open .custom-select-caret{transform:rotate(180deg);}
.custom-select-list{
  position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:20;
  background:var(--ink);border:1px solid rgba(255,255,255,.2);border-radius:2px;
  list-style:none;margin:0;padding:6px;max-height:240px;overflow-y:auto;
  display:none;box-shadow:0 14px 30px rgba(0,0,0,.35);
}
.custom-select.open .custom-select-list{display:block;}
.custom-select-list li{
  padding:10px 12px;border-radius:2px;color:#fff;font-size:.95rem;cursor:pointer;
}
.custom-select-list li:hover, .custom-select-list li.active{background:rgba(255,255,255,.1);}
.custom-select-list li.selected{color:var(--sage-light);}
.field textarea{resize:vertical;min-height:100px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-note{font-size:.82rem;color:#7c8b96;margin-top:14px;}
.success{
  display:none;background:rgba(83,125,103,.18);border:1px solid var(--sage);
  color:#dcefe1;padding:16px 18px;border-radius:2px;font-size:.9rem;margin-bottom:18px;
}
.success.show{display:block;}

/* ---------- Impressum ---------- */
.legal{max-width:760px;}
.legal h2{font-size:1.4rem;margin-top:40px;}
.legal h2:first-child{margin-top:0;}
.legal p{color:var(--graphite);}
.legal dl{display:grid;grid-template-columns:auto 1fr;gap:8px 20px;margin:0 0 8px;}
.legal dt{color:var(--steel);font-family:'IBM Plex Mono',monospace;font-size:.82rem;white-space:nowrap;padding-top:2px;}
.legal dd{margin:0;}
.legal a{color:var(--sage);text-decoration:none;}
.legal a:hover{text-decoration:underline;}

/* ---------- Footer ---------- */
footer{background:var(--ink);color:#8fa0ac;padding:60px 0 30px;}
.footer-top{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-col h4{color:#fff;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;font-family:'IBM Plex Mono',monospace;font-weight:500;margin-bottom:16px;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;font-size:.9rem;}
.footer-col a{text-decoration:none;color:#8fa0ac;transition:.2s;}
.footer-col a:hover{color:var(--sage-light);}
.footer-col p{font-size:.9rem;margin:0 0 4px;}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  padding-top:24px;font-size:.78rem;font-family:'IBM Plex Mono',monospace;color:#5f717d;
}
.footer-bottom a{color:#5f717d;text-decoration:none;}
.footer-bottom a:hover{color:var(--sage-light);}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s ease, transform .8s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  nav.main-nav ul{display:none;}
  .burger{display:flex;}
  .hero .wrap{grid-template-columns:1fr;}
  .hero-art{height:360px;order:-1;}
  .process{grid-template-columns:repeat(2,1fr);row-gap:40px;}
  .process::before{display:none;}
  .about{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .feature-band{grid-template-columns:1fr;gap:32px;}
  .acc-item .acc-body{padding-left:34px;}
  .acc-body ul{grid-template-columns:1fr;}
}
@media (max-width:600px){
  .wrap{padding:0 20px;}
  .section{padding:80px 0;}
  .process{grid-template-columns:1fr;}
  .field-row{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr 1fr;}
  .contact-card{padding:30px 24px;}
  .trust-strip .wrap{flex-direction:column;gap:8px;}
  .trust-strip .wrap .dot{display:none;}
  .acc-item summary{padding:20px;gap:14px;}
  .acc-item .acc-body{padding:0 20px 26px 20px;}
  .feature-list{grid-template-columns:1fr;}
  .credentials dl{grid-template-columns:1fr;}
  .legal dl{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* ---------- Referenzen ---------- */
.project-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:4px;
  overflow:hidden;
}
.project-head{
  display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:20px;
  padding:30px 34px 24px;
}
.project-head h2{margin:10px 0 0;font-size:clamp(1.3rem,2.2vw,1.8rem);}
.project-head .role{
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--sage);background:var(--sage-pale);border:1px solid var(--sage-light);
  border-radius:20px;padding:7px 15px;white-space:nowrap;
}
.sheet{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--stone);padding:26px 34px 30px;
  display:flex;flex-direction:column;gap:22px;
}
.sheet-head{display:flex;flex-direction:column;gap:10px;}
.sheet-head p{margin:0;font-size:.9rem;color:var(--steel);max-width:76ch;}
.sheet-empty{background:var(--paper);}

/* ---------- Scroll-to-top button ---------- */
.scroll-top-btn{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:46px;height:46px;border-radius:50%;
  background:var(--ink);color:#fff;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(22,35,46,.28);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease, transform .25s ease, background .2s ease, visibility 0s linear .25s;
}
.scroll-top-btn.show{
  opacity:1;visibility:visible;transform:translateY(0);
  transition:opacity .25s ease, transform .25s ease, background .2s ease;
}
.scroll-top-btn:hover{background:var(--sage);}
.scroll-top-btn svg{width:18px;height:18px;flex-shrink:0;}
@media (max-width:600px){
  .scroll-top-btn{right:16px;bottom:16px;width:42px;height:42px;}
}