/* ============================================================
   Protemics — base.css
   Reset, Typografie, seitenuebergreifende Komponenten.
   Prinzip: 1px-Hairline-Raster statt Schatten/abgerundeter Cards.
   Referenz: protemics_design_spec.md §2–§5
   ============================================================ */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--graphite);
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
address{font-style:normal}
:focus-visible{
  outline:2px solid var(--signal);
  outline-offset:3px;
  border-radius:var(--radius);
}

/* ---------- layout ---------- */
.wrap{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--gutter);
}
section{padding:var(--sec-pad) 0}

/* ---------- typografie ---------- */
h1,h2,h3,h4{
  font-family:var(--font-display);
  letter-spacing:-.01em;
  margin:0;
  color:var(--graphite);
}
h1{font-size:var(--fs-h1);font-weight:800;line-height:1.02}
h2{font-size:var(--fs-h2);font-weight:800;line-height:1.05}
h3{font-size:var(--fs-h3);font-weight:700;line-height:1.15}
p{margin:0}

.eyebrow{
  display:block;
  font-family:var(--font-mono);
  font-size:var(--fs-eyebrow);
  font-weight:400;
  letter-spacing:var(--tr-eyebrow);
  text-transform:uppercase;
  color:var(--signal-dim);
}

/* Akzent-Regel Spec §1: auf dunkel --signal, auf hell --signal-dim.
   Zentral geregelt, damit im Markup keine Inline-Farben stehen. */
.hero .eyebrow,
.cta-band .eyebrow,
.highlight .eyebrow{color:var(--signal)}

.lede{
  font-size:var(--fs-lede);
  line-height:1.6;
  color:var(--mist);
}

.sec-head{max-width:640px;margin-bottom:44px}
.sec-head h2{margin-top:14px}
section.alt{background:var(--paper-2)}      /* abgesetzte helle Sektion */
.cta-band h2{margin-top:14px}
.sec-head p{margin-top:16px;color:var(--mist);line-height:1.6}

/* ---------- navigation ---------- */
nav{
  position:sticky;
  top:0;
  z-index:80;
  height:var(--nav-h);
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:saturate(160%) blur(12px);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--hair);
}
.nav-in{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:32px;
}
.brand-link{display:flex;align-items:center;flex:0 0 auto}
.brand-logo{height:32px;width:auto}

.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
  margin-left:auto;
}
.nav-links a{
  font-size:14px;
  font-weight:500;
  color:var(--mist);
  padding:6px 0;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.nav-links a:hover{color:var(--graphite)}
.nav-links a.active{
  color:var(--graphite);
  border-bottom-color:var(--signal-dim);
}

.nav-cta{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--graphite);
  border:1px solid var(--hair);
  border-radius:var(--radius);
  padding:9px 16px;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-cta:hover{border-color:var(--signal-dim);color:var(--signal-dim)}

.burger{
  display:none;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--graphite);
  border:1px solid var(--hair);
  border-radius:var(--radius);
  padding:8px 12px;
  cursor:pointer;
  margin-left:auto;
}

/* ---------- buttons ---------- */
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.btn-primary,.btn-ghost{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.03em;
  padding:13px 22px;
  border-radius:var(--radius);
  border:1px solid transparent;
  transition:transform .18s var(--ease),background .18s var(--ease),
             border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:var(--signal);
  color:#06222a;
  font-weight:500;
}
.btn-primary:hover{
  background:color-mix(in srgb,var(--signal) 82%,#fff);
  transform:translateY(-1px);
}
.btn-ghost{
  border-color:var(--hair);
  color:var(--graphite);
}
.btn-ghost:hover{border-color:var(--signal-dim);color:var(--signal-dim)}

/* auf dunklem Panel */
.hero .btn-ghost,.cta-band .btn-ghost,.highlight .btn-ghost{
  border-color:var(--hair-dark);
  color:#E7EDF0;
}
.hero .btn-ghost:hover,.cta-band .btn-ghost:hover,.highlight .btn-ghost:hover{
  border-color:var(--signal);
  color:var(--signal);
}

/* ---------- hero (dunkles Front-Panel) ---------- */
.hero{
  position:relative;
  background:var(--ink-900);
  color:#E7EDF0;
  padding:72px 0 0;
  overflow:hidden;
  border-bottom:1px solid var(--ink-700);
}
.hero-grid-bg{
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(120% 90% at 50% 0%,#000 35%,transparent 85%);
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%,#000 35%,transparent 85%);
}
.hero .wrap{position:relative}
.hero-in{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
  padding-bottom:64px;
}
.hero h1{color:#F2F6F8;margin-top:20px}
.hero h1 .em{color:var(--signal)}
.hero .lede{color:var(--ink-text);max-width:46ch;margin-top:24px}

/* ---------- spec-strip ---------- */
.specs{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--hair-dark);
  border-top:1px solid var(--hair-dark);
}
.spec{
  background:var(--ink-900);
  padding:26px 24px 30px;
}
.spec .v{
  font-family:var(--font-display);
  font-weight:700;
  font-size:20px;
  letter-spacing:-.01em;
  color:#F2F6F8;
}
.spec .l{
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:var(--fs-label);
  letter-spacing:var(--tr-label);
  text-transform:uppercase;
  color:var(--ink-text-2);
}

/* ---------- mono-tags & more-links ---------- */
.tag{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:var(--fs-label);
  letter-spacing:var(--tr-label);
  text-transform:uppercase;
  color:var(--signal-dim);
}
.more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.03em;
  color:var(--signal-dim);
}
.more .arr{transition:transform .2s var(--ease)}
.more:hover .arr{transform:translateX(4px)}

/* ---------- product-cells (Startseite + Produktseite) ---------- */
.prods{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--hair);
  border:1px solid var(--hair);
}
.prod{
  background:var(--paper);
  padding:30px 28px 26px;
  display:flex;
  flex-direction:column;
  gap:12px;
  min-height:172px;
  transition:background .2s var(--ease);
}
.prod:hover{background:var(--paper-2)}
.prod .pn{
  font-family:var(--font-mono);
  font-size:var(--fs-label);
  letter-spacing:var(--tr-label);
  text-transform:uppercase;
  color:var(--mist);
}
.prod h3{margin-top:auto}
.prod .arr{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--signal-dim);
  transition:transform .2s var(--ease);
}
.prod:hover .arr{transform:translateX(4px)}

/* ---------- CTA-Band ---------- */
section.cta-band{
  background:var(--ink-900);
  color:#E7EDF0;
  text-align:center;
}
.cta-band h2{color:#F2F6F8}
.cta-band p{
  margin:16px auto 0;
  max-width:56ch;
  color:var(--ink-text);
}
.cta-band .hero-actions{justify-content:center}

/* ---------- footer ---------- */
footer{
  background:var(--ink-800);
  color:var(--ink-text);
  padding:72px 0 26px;
  border-top:1px solid var(--ink-700);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:44px;
}
.foot-brand .brand-logo{height:38px;margin-bottom:22px}
.foot-brand address{
  font-size:14px;
  line-height:1.8;
  color:var(--ink-text-2);
}
footer h4{
  font-family:var(--font-mono);
  font-size:var(--fs-label);
  font-weight:500;
  letter-spacing:var(--tr-label);
  text-transform:uppercase;
  color:#8FA3AF;
  margin-bottom:16px;
}
.foot-grid a{
  display:block;
  font-size:14.5px;
  padding:5px 0;
  color:var(--ink-text);
  transition:color .18s var(--ease);
}
.foot-grid a:hover{color:var(--signal)}
.foot-bot{
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  margin-top:56px;
  padding-top:22px;
  border-top:1px solid var(--ink-700);
  font-family:var(--font-mono);
  font-size:var(--fs-label);
  letter-spacing:.06em;
  color:var(--ink-text-2);
}

/* ---------- scroll-reveal ---------- */
.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:860px){
  .nav-links,.nav-cta{display:none}
  .burger{display:inline-block}
  .hero{padding-top:48px}
  .hero-in{grid-template-columns:1fr;gap:44px;padding-bottom:44px}
  .hero .lede{max-width:none}
  .specs{grid-template-columns:repeat(2,1fr)}
  .prods{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:520px){
  .specs{grid-template-columns:1fr}
  .prods{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none}
}