/* Farben / Variablen */
:root{
  --logo-color: #022947;
  --accent: #035ca0;
  --bg: linear-gradient(180deg,#071427 0%, #091827 60%);
  --surface: rgba(255,255,255,0.03);
  --card: #0f1720;
  --text: #eef6fb;
  --muted: #98a8b6;
  --radius: 12px;
  --max-w: 1200px;
  --glass: rgba(255,255,255,0.03);
}

/* Reset & Basics */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight: 600; /* war 500 */
  letter-spacing: -0.01em;
  color:var(--text);
  background: var(--bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.55;
}
.container{max-width:var(--max-w);margin:0 auto;padding:0 22px}

/* Header */
header{
  position:fixed;
  left:0; right:0; top:0;
  backdrop-filter: blur(8px);
  background: linear-gradient(180deg, rgba(6,10,14,0.45), rgba(6,10,14,0.25));
  border-bottom: 1px solid rgba(255,255,255,0.02);
  z-index:1200;
}
.nav-row{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  text-decoration:none;
  font-family:"Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight: 800;
  letter-spacing: 0.05em;
  color:var(--logo-color);
  font-size:1.2rem;
  text-transform:uppercase;
  padding:6px 6px;
}
.menu-toggle{
  display:none;
  background:transparent;
  border:1px solid rgba(255,255,255,0.04);
  color:var(--text);
  padding:8px 10px;
  border-radius:10px;
}
nav ul{
  list-style:none;
  display:flex;
  gap:18px;
}
nav a{
  color:var(--text);
  text-decoration:none;
  padding:8px 10px;
  border-radius:8px;
  font-weight:500;
  transition:all .18s;
}
nav a:hover{color:var(--accent)}
nav a.active{font-weight:700;color:var(--accent);text-decoration:underline}

/* Mobile */
@media (max-width:820px){
  .menu-toggle{display:inline-block}
  nav{position:fixed;right:18px;top:70px}
  nav ul{display:none;flex-direction:column;padding:12px;background:rgba(8,10,12,0.9);border-radius:12px;min-width:190px}
  nav ul.open{display:flex}
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 96px;

  background-image:
    linear-gradient(rgba(2, 6, 12, 0.12), rgba(2, 6, 12, 0.85)),
    url('background.png');
  background-repeat: no-repeat, repeat;
  background-size: cover, auto;
  background-position: center, 0 0;
}
/* HERO inner */
.hero-inner{max-width:980px;padding:44px 20px;text-align:center}

/* Logo */
.hero-logo{width: clamp(220px, 38%, 480px);height:auto;margin-top:-60px;filter:drop-shadow(0 12px 30px rgba(0,0,0,0.6))}
.hero-grid{width:100%;max-width:960px;margin:0 auto;display:grid;gap:10px}
.hero-row{display:grid;grid-template-columns:33.333% 33.333% 33.333%;align-items:center;justify-items:center;column-gap:12px;width:100%}
.hero-row > .col{min-width:0;box-sizing:border-box}
.hero-top .col{font-weight:700;font-size:clamp(1.6rem,2.2vw,2.4rem);line-height:1.05;color:var(--text);white-space:nowrap;text-align:center;letter-spacing:-0.02em}
.hero-top .col-2::before{content:"· ";opacity:.95;padding-right:6px}
.hero-top .col-2::after{content:" ·";opacity:.95;padding-left:6px}
.hero-bottom .col{text-align:center}
.hero-bottom .col-1 .badge{display:inline-block;background:rgba(255,255,255,0.05);padding:8px 14px;border-radius:999px;font-weight:700;color:var(--muted);font-size:0.95rem}

.hero-bottom .col-3{text-align:right;padding-left:8px}
.hero-bottom .col-3 .subtitle{margin:0;color:var(--muted);font-weight:600;font-size:1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;width:100%}

/* CTA Buttons */
.cta{margin-top:18px;display:flex;gap:12px;justify-content:center}
.btn{display:inline-block;padding:12px 22px;border-radius:999px;font-weight:700;text-decoration:none}
.btn-primary{background:linear-gradient(90deg,#022947,#03487c);color:#eef6fb}
.btn-ghost{background:transparent;border:2px solid rgba(255,255,255,0.06);color:var(--muted)}

@media (max-width:760px){
  .hero-row{grid-template-columns:1fr}
  .hero-top .col{white-space:normal;font-size:1.4rem}
  .hero-bottom .col-3{text-align:center}
  .hero-bottom .col-3 .subtitle{white-space:normal;text-overflow:clip}
  .hero-bottom .col-1 .badge{margin:0 auto}
}

/* Logo auf Startseite */
.hero-logo{
  width: clamp(220px, 38%, 480px);
  height:auto;
  filter:drop-shadow(0 12px 30px rgba(0,0,0,0.6));
  transition:transform .35s cubic-bezier(.2,.9,.2,1), filter .35s;
  margin-top:-60px;
}
.hero-logo:hover{
  transform:translateY(-6px) scale(1.03);
  filter:drop-shadow(0 18px 42px rgba(0,0,0,0.7));
}

/* Haupttitel */
.hero-title {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1.15;
  margin: 24px auto 8px;
  letter-spacing: -0.015em;
  max-width: 760px;
  text-align: center;
  color: var(--text);
}

/* Subtitle */
.hero-row{
  display:flex;
  gap:16px;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  margin-bottom:18px;
}
.badge{
  background:rgba(255,255,255,0.05);
  padding:8px 14px;
  border-radius:999px;
  font-weight:700;
  color:var(--muted);
  font-size:0.92rem;
}
.subtitle{
  color:var(--muted);
  max-width:760px;
  margin:6px auto 0;
  font-weight:500;
  font-size:1.05rem;
}


/* CTA */
.cta{
  margin-top:18px;
  display:flex;
  gap:12px;
  justify-content:center;
  flex-wrap:wrap;
}
.btn{
  display:inline-block;
  padding:12px 22px;
  border-radius:999px;
  font-weight:700;
  text-decoration:none;
  transition:transform .18s, box-shadow .18s;
  box-shadow: 0 6px 18px rgba(2,6,23,0.45);
}
.btn-primary {
  background: linear-gradient(90deg, #022947, #03487c);
  color: #eef6fb;
}
.btn-ghost{
  background:transparent;
  border:2px solid rgba(255,255,255,0.06);
  color:var(--accent);
}
.btn-primary:hover{transform:translateY(-4px)}
.btn-ghost:hover{transform:translateY(-4px);background:rgba(255,255,255,0.02)}

/* Sections */
section{padding:80px 0;scroll-margin-top:92px}
section + section{padding-top:44px}

/* Headings */
h2{
  text-align:center;
  font-family:"Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight:700;
  font-size:1.9rem;
  letter-spacing:-0.01em;
  margin-bottom:12px;
}
.section-intro{
  text-align:center;
  color:var(--muted);
  max-width:760px;
  margin:0 auto 20px;
  line-height:1.6;
}

/* About */
.about-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
  margin-top:18px;
}
.card{
  background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  padding:20px;
  border-radius:12px;
  border-left:4px solid var(--logo-color);
}

/* XMPP */
.xmpp-list{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:12px;
  list-style:none;
  padding:0;
  margin-top:18px;
}
.xmpp-list li{
  padding:10px 12px;
  border-left:3px solid var(--logo-color);
  color:var(--text);
}

/* Features */
.features-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:18px;
  margin-top:18px;
}
.feature-card{
  background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  padding:18px;
  border-radius:12px;
  text-align:center;
  transition:transform .22s, box-shadow .22s;
}
.feature-card:hover{
  transform:translateY(-8px);
  box-shadow:0 18px 40px rgba(2,6,23,0.55);
}
.feature-card .icon{
  font-size:2.2rem;
  margin-bottom:8px;
}

/* Vergleichstabelle */
.compare{
  width:100%;
  border-collapse:collapse;
  margin-top:18px;
}
.compare th,.compare td{
  padding:12px;
  border-bottom:1px solid rgba(255,255,255,0.03);
  text-align:center;
}
.compare th{color:var(--muted);font-weight:600}
.check{color:var(--accent);font-weight:800}
.cross{color:#ff7b7b;font-weight:800}

/* Downloads */
.download-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:16px;
  margin-top:18px;
}
.download-card{
  display:block;
  padding:18px;
  border-radius:12px;
  background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  text-decoration:none;
  color:var(--text);
  transition:transform .18s, border-color .18s;
  border:2px solid transparent;
}
.download-card:hover{
  transform:translateY(-6px);
  border-color:rgba(255,255,255,0.03);
}
.free-note{
  color:var(--muted);
  font-weight:700;
  margin-top:12px;
  text-align:center;
}

/* Team */
.team-grid{
  display:flex;
  gap:28px;
  justify-content:center;
  flex-wrap:wrap;
  margin-top:18px;
}
.team-member{text-align:center}
.avatar{
  width:120px;
  height:120px;
  border-radius:50%;
  background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  border:3px solid var(--logo-color);
  margin:0 auto 12px;
}

/* Footer */
footer{
  padding:28px 0;
  background:transparent;
  color:var(--muted);
  text-align:center;
  margin-top:30px;
}
footer a{color:var(--muted);text-decoration:none}

/* Reveal */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s ease, transform .6s cubic-bezier(.2,.9,.2,1);
}
.reveal.in-view{opacity:1;transform:none}

/* Responsive */
@media (max-width:900px){
  .about-grid{grid-template-columns:1fr}
  .hero-logo{width:70%}
  .hero-title{font-size:1.8rem}
  nav ul{gap:12px}
}