/* ==========================================================================
   CBeSt EDV-Beratung — Design Tokens
   Konzept: "Network Operations" — ruhiges, dunkles Leitwarten-Blau mit
   signalhaftem Cyan-Akzent. Das Signaturelement ist die live wirkende
   Netzwerkkarte im Hero, deren Verbindungen wie Datenpakete pulsieren.
   ========================================================================== */

:root{
  --ink: #060b18;
  --ink-2: #0a1226;
  --panel: #0d1730;
  --panel-2: #12213f;
  --line: rgba(207, 224, 255, 0.10);
  --line-strong: rgba(207, 224, 255, 0.20);
  --text: #eaf1ff;
  --muted: #90a0c2;
  --muted-2: #5c6a8c;
  --blue: #3e7bfa;
  --blue-soft: #274d9c;
  --cyan: #49e0d4;
  --amber: #ffb24c;
  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 1180px;
  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", monospace;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Sprachumschaltung: Blöcke je nach html[data-lang] ein-/ausblenden */
html[data-lang="de"] [lang="en"]{ display: none !important; }
html[data-lang="en"] [lang="de"]{ display: none !important; }

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4{ font-family: var(--font-display); margin: 0; font-weight: 600; letter-spacing: -0.01em; }
p{ margin: 0; }

.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before{
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(73,224,212,0.18);
}

/* ---------------------------------- Nav ---------------------------------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6,11,24,0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand{
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--text);
}
.brand .dot{ color: var(--cyan); }
.brand small{
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.nav-links{
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav-links a{
  font-size: 14.5px;
  color: var(--muted);
  transition: color .15s ease;
}
.nav-links a:hover{ color: var(--text); }
.nav-right{ display: flex; align-items: center; gap: 18px; }

.lang-toggle{
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 12px;
}
.lang-toggle button{
  background: none;
  border: none;
  color: var(--muted);
  padding: 6px 12px;
  cursor: pointer;
  letter-spacing: 0.04em;
}
.lang-toggle button.active{
  background: var(--blue);
  color: #fff;
}

.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}
.btn-primary{
  background: linear-gradient(135deg, var(--blue), #5f97ff);
  color: #fff;
  box-shadow: 0 8px 24px -8px rgba(62,123,250,0.65);
}
.btn-primary:hover{ transform: translateY(-1px); box-shadow: 0 10px 28px -6px rgba(62,123,250,0.8); }
.btn-ghost{
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text);
}
.btn-ghost:hover{ border-color: var(--cyan); color: var(--cyan); }

.nav-toggle{
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content: "";
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  position: relative;
}
.nav-toggle span::before{ position: absolute; top: -6px; }
.nav-toggle span::after{ position: absolute; top: 6px; }

/* ---------------------------------- Hero ---------------------------------- */
.hero{
  position: relative;
  padding: 84px 0 60px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero::before{
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 620px;
  background: radial-gradient(60% 60% at 30% 20%, rgba(62,123,250,0.20), transparent 70%),
              radial-gradient(45% 45% at 85% 10%, rgba(73,224,212,0.14), transparent 70%);
  pointer-events: none;
}
.hero-grid{
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}
.hero h1{
  font-size: clamp(32px, 4.4vw, 52px);
  line-height: 1.08;
  margin: 18px 0 20px;
  color: var(--text);
}
.hero h1 .accent{ color: var(--cyan); }
.hero p.lead{
  font-size: 17.5px;
  color: var(--muted);
  max-width: 52ch;
  margin-bottom: 30px;
}
.hero-ctas{ display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }

.pill-row{ display: flex; gap: 10px; flex-wrap: wrap; }
.pill{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.02);
}

/* Netzwerkkarte (Signaturelement) */
.netmap{
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 480px;
  margin: 0 auto;
}
.netmap svg{ width: 100%; height: 100%; overflow: visible; }
.netmap .link{
  fill: none;
  stroke: url(#linkGradient);
  stroke-width: 1.4;
  stroke-dasharray: 3 6;
  opacity: 0.55;
}
.netmap .pulse{
  fill: var(--cyan);
  filter: drop-shadow(0 0 6px rgba(73,224,212,0.9));
}
.netmap .node-core{
  fill: var(--panel-2);
  stroke: var(--blue);
  stroke-width: 1.6;
}
.netmap .node-satellite{
  fill: var(--panel);
  stroke: var(--line-strong);
  stroke-width: 1.2;
}
.netmap text{
  font-family: var(--font-mono);
  fill: var(--muted);
  font-size: 9.5px;
  letter-spacing: 0.02em;
}
.netmap .core-label{
  font-family: var(--font-display);
  fill: var(--text);
  font-size: 12px;
  font-weight: 700;
}

/* ---------------------------------- Sections ---------------------------------- */
section{ padding: 84px 0; }
.section-head{
  max-width: 640px;
  margin-bottom: 46px;
}
.section-head h2{
  font-size: clamp(24px, 3vw, 34px);
  margin: 14px 0 12px;
}
.section-head p{ color: var(--muted); font-size: 16px; }

.divider{
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
  border: none;
  margin: 0;
}

/* Warum-Karten */
.why-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.why-card{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: border-color .18s ease, transform .18s ease;
}
.why-card:hover{ border-color: var(--line-strong); transform: translateY(-3px); }
.why-icon{
  width: 38px; height: 38px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(62,123,250,0.14);
  color: var(--cyan);
  margin-bottom: 16px;
}
.why-card h3{ font-size: 16.5px; margin-bottom: 8px; }
.why-card p{ color: var(--muted); font-size: 14.5px; }

/* Leistungen */
.services{ background: var(--ink-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.service-list{ display: flex; flex-direction: column; gap: 14px; }
.service-card{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 26px;
}
.service-card .svc-head{ }
.service-card .svc-tag{
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--cyan);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.service-card h3{ font-size: 21px; margin: 8px 0 10px; }
.service-card .svc-intro{ color: var(--muted); font-size: 14.5px; }
.svc-bullets{ display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; align-content: start; }
.svc-bullets li{
  font-size: 14.5px;
  color: var(--text);
  padding-left: 18px;
  position: relative;
}
.svc-bullets li::before{
  content: "";
  position: absolute; left: 0; top: 8px;
  width: 7px; height: 7px;
  border-radius: 2px;
  background: var(--blue);
  transform: rotate(45deg);
}

.tag-strip{
  margin-top: 30px;
  display: flex; flex-wrap: wrap; gap: 10px;
}

/* Über mich */
.about{ display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 48px; align-items: center; }
.about-photo{
  aspect-ratio: 4/5;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line-strong);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.about-photo .initials{
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 700;
  color: var(--blue-soft);
}
.about-photo::after{
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(60% 60% at 70% 20%, rgba(73,224,212,0.12), transparent 60%);
}
.about h3{ font-size: 15px; color: var(--muted); font-weight: 500; margin-bottom: 6px; }
.about h2{ font-size: clamp(24px,3vw,32px); margin-bottom: 18px; }
.about p{ color: var(--muted); font-size: 16px; margin-bottom: 14px; }
.about .signature{ color: var(--text); font-family: var(--font-mono); font-size: 13px; margin-top: 22px; }

/* Kontakt */
.contact{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 56px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  position: relative;
  overflow: hidden;
}
.contact::before{
  content:"";
  position:absolute; inset: -30% -10% auto auto;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(62,123,250,0.22), transparent 65%);
  pointer-events: none;
}
.contact h2{ font-size: clamp(24px,3vw,32px); margin-bottom: 14px; }
.contact p.lead{ color: var(--muted); max-width: 44ch; }
.contact-cards{ display: flex; flex-direction: column; gap: 14px; }
.contact-card{
  display: flex; align-items: center; gap: 14px;
  background: var(--panel-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}
.contact-card .ico{
  width: 34px; height: 34px;
  border-radius: 9px;
  background: rgba(73,224,212,0.14);
  color: var(--cyan);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-card .label{ font-family: var(--font-mono); font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.contact-card .value{ font-size: 15px; color: var(--text); }

/* Footer */
footer{
  border-top: 1px solid var(--line);
  padding: 34px 0;
}
.footer-row{
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px;
}
.footer-row .copy{ color: var(--muted-2); font-size: 13px; }
.footer-links{ display: flex; gap: 20px; }
.footer-links a{ color: var(--muted); font-size: 13.5px; }
.footer-links a:hover{ color: var(--cyan); }

/* ---------------------------------- Responsive ---------------------------------- */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .netmap{ max-width: 360px; margin-top: 20px; }
  .why-grid{ grid-template-columns: repeat(2, 1fr); }
  .service-card{ grid-template-columns: 1fr; }
  .svc-bullets{ grid-template-columns: 1fr; }
  .about{ grid-template-columns: 1fr; }
  .about-photo{ max-width: 280px; }
  .contact{ grid-template-columns: 1fr; padding: 36px 24px; }
}
@media (max-width: 720px){
  .nav-links{
    position: fixed; inset: 64px 16px auto 16px;
    background: var(--panel);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    flex-direction: column;
    align-items: flex-start;
    padding: 18px;
    gap: 14px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all .18s ease;
  }
  .nav-links.open{ transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-toggle{ display: inline-flex; align-items: center; justify-content: center; }
  .why-grid{ grid-template-columns: 1fr; }
}