/* ==========================================================================
   PA/TEC — Landing Page Stylesheet
   Single Source of Truth fürs CI. Alle Farben/Tokens stehen im :root.
   Reihenfolge: Tokens · Base · Atmosphäre · Nav · Hero · Sections ·
   Services · Approach · Contact · Footer · Motion · A11y.
   Fonts werden separat über assets/css/fonts.css (self-hosted) geladen.
   ========================================================================== */

:root{
  --bg:#0a0b0d;
  --bg-elev:#111316;
  --bg-card:#0f1115;
  --ink:#e9ebef;
  --muted:#878d97;
  --faint:#565c66;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --accent:#4f7dff;
  --accent-bright:#6f97ff;
  --glow:rgba(79,125,255,.45);
  --display:'Chakra Petch',sans-serif;
  --body:'IBM Plex Sans',sans-serif;
  --mono:'IBM Plex Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);font-family:var(--body);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}

/* atmosphere */
.bg-layer{position:fixed;inset:0;z-index:0;pointer-events:none}
.bg-grid{
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 70% 0%,#000 0%,transparent 70%);
  opacity:.5;
}
.bg-glow{
  background:radial-gradient(600px 400px at 78% -5%,var(--glow),transparent 60%);
  opacity:.5;
}
.bg-noise{
  opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px;position:relative;z-index:2}

/* nav */
nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(12px);
  background:linear-gradient(180deg,rgba(10,11,13,.9),rgba(10,11,13,.55));
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:1px;text-decoration:none;color:var(--ink);display:flex;align-items:center}
.logo .sl{color:var(--accent);margin:0 1px;display:inline-block;transform:skewX(-12deg);text-shadow:0 0 18px var(--glow)}
.nav-links{display:flex;gap:34px;align-items:center}
.nav-links a{color:var(--muted);text-decoration:none;font-size:13px;font-family:var(--mono);letter-spacing:.3px;transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.status{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;color:var(--muted)}
.dot{width:7px;height:7px;border-radius:50%;background:#3ddc84;box-shadow:0 0 10px #3ddc84;animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
@media(max-width:720px){.nav-links a:not(.status){display:none}}

/* hero */
header{padding:120px 0 110px;position:relative}
.eyebrow{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:1px;margin-bottom:26px;opacity:0;animation:fade .8s ease .1s forwards}
.eyebrow .path{color:var(--faint)}
h1{
  font-family:var(--display);font-weight:700;font-size:clamp(44px,8vw,92px);
  line-height:1.02;letter-spacing:-1px;margin-bottom:28px;
}
h1 .line{display:block;overflow:hidden}
h1 .line span{display:inline-block;transform:translateY(110%);opacity:0;animation:rise .8s cubic-bezier(.2,.7,.2,1) forwards}
h1 .line:nth-child(1) span{animation-delay:.2s}
h1 .line:nth-child(2) span{animation-delay:.32s}
h1 .line:nth-child(3) span{animation-delay:.44s}
h1 em{font-style:normal;color:var(--accent);position:relative}
h1 em .sl{transform:skewX(-12deg);display:inline-block;text-shadow:0 0 28px var(--glow)}
.lede{font-size:clamp(16px,2vw,19px);color:var(--muted);max-width:560px;margin-bottom:40px;opacity:0;animation:fade .9s ease .7s forwards}
.lede strong{color:var(--ink);font-weight:500}
.cta-row{display:flex;gap:16px;flex-wrap:wrap;opacity:0;animation:fade .9s ease .9s forwards}
.btn{
  font-family:var(--mono);font-size:14px;text-decoration:none;padding:14px 26px;
  border-radius:2px;transition:all .2s;display:inline-flex;align-items:center;gap:10px;
}
.btn-primary{background:var(--accent);color:#05060a;font-weight:500}
.btn-primary:hover{background:var(--accent-bright);box-shadow:0 0 30px var(--glow);transform:translateY(-1px)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

.hero-mark{
  position:absolute;right:-20px;top:90px;font-family:var(--display);font-weight:700;
  font-size:clamp(120px,22vw,300px);color:transparent;
  -webkit-text-stroke:1px rgba(255,255,255,.05);line-height:1;z-index:0;
  user-select:none;pointer-events:none;
}
.hero-mark .sl{-webkit-text-stroke:1px var(--glow);transform:skewX(-12deg);display:inline-block}
@media(max-width:720px){
  header{padding:64px 0 72px}
  .hero-mark{font-size:clamp(48px,17vw,110px);top:46px;right:-25vw;opacity:.5}
}

/* section scaffolding */
section{padding:84px 0;position:relative}
.sec-label{
  font-family:var(--mono);font-size:13px;color:var(--faint);letter-spacing:.5px;
  margin-bottom:14px;display:flex;align-items:center;gap:10px;
}
.sec-label .n{color:var(--accent)}
.sec-title{font-family:var(--display);font-weight:600;font-size:clamp(28px,4vw,42px);letter-spacing:-.5px;margin-bottom:14px}
.sec-intro{color:var(--muted);max-width:520px;margin-bottom:48px}

/* services */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:4px;overflow:hidden}
@media(max-width:720px){.grid{grid-template-columns:1fr}}
.card{background:var(--bg-card);padding:34px 30px;position:relative;transition:background .25s;overflow:hidden}
.card:last-child:nth-child(odd){grid-column:1/-1}
.card::before{content:"";position:absolute;left:0;top:0;height:100%;width:2px;background:var(--accent);transform:scaleY(0);transform-origin:top;transition:transform .3s}
.card:hover{background:#13161b}
.card:hover::before{transform:scaleY(1)}
.card .path{font-family:var(--mono);font-size:13px;color:var(--accent);margin-bottom:18px;letter-spacing:.3px}
.card h3{font-family:var(--display);font-weight:600;font-size:20px;margin-bottom:10px;letter-spacing:.2px}
.card p{color:var(--muted);font-size:15px}
.card .idx{position:absolute;right:26px;top:28px;font-family:var(--mono);font-size:12px;color:var(--faint)}

/* approach */
.approach{border-top:1px solid var(--line)}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
@media(max-width:720px){.pillars{grid-template-columns:1fr;gap:30px}}
.pillar .bar{height:2px;width:40px;background:var(--accent);margin-bottom:20px;box-shadow:0 0 12px var(--glow)}
.pillar h4{font-family:var(--display);font-weight:600;font-size:18px;margin-bottom:10px}
.pillar p{color:var(--muted);font-size:15px}

/* contact */
.contact{border-top:1px solid var(--line);text-align:left}
.contact-box{
  border:1px solid var(--line-strong);border-radius:4px;padding:clamp(34px,5vw,60px);
  background:linear-gradient(135deg,#0e1015,#0b0c0f);position:relative;overflow:hidden;
}
.contact-box::after{content:"/";position:absolute;right:-30px;bottom:-80px;font-family:var(--display);font-weight:700;font-size:340px;color:rgba(79,125,255,.06);transform:skewX(-12deg)}
.contact-box h2{font-family:var(--display);font-weight:700;font-size:clamp(26px,4vw,40px);letter-spacing:-.5px;margin-bottom:16px;position:relative}
.contact-box p{color:var(--muted);max-width:440px;margin-bottom:32px;position:relative}
.mail{font-family:var(--mono);font-size:clamp(16px,2.4vw,22px);color:var(--ink);text-decoration:none;border-bottom:1px solid var(--accent);padding-bottom:4px;transition:color .2s;position:relative}
.mail:hover{color:var(--accent)}

/* footer */
footer{border-top:1px solid var(--line);padding:38px 0;margin-top:30px}
.foot-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:18px}
.foot-inner .logo{font-size:18px}
.foot-meta{font-family:var(--mono);font-size:12px;color:var(--faint);line-height:1.9;margin-top:10px}
.foot-links{display:flex;gap:24px}
.foot-links a{font-family:var(--mono);font-size:12px;color:var(--muted);text-decoration:none}
.foot-links a:hover{color:var(--accent)}

/* load animation */
.reveal{animation:rise .7s cubic-bezier(.2,.7,.2,1) forwards}
@keyframes rise{to{transform:translateY(0);opacity:1}}
.fade{animation:fade .8s ease forwards}
@keyframes fade{to{opacity:1}}

/* a11y: Bewegungsreduktion respektieren — Default-Look bleibt unberührt,
   greift nur wenn der Nutzer "reduzierte Bewegung" im OS aktiviert hat. */
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important}
  .eyebrow,.lede,.cta-row,h1 .line span{opacity:1;transform:none}
}