/* ====== Basis ====== */
:root{
  --text:#1f2937;
  --muted:#6b7280;
  --bg:#f7f7f7;
  --panel:#ffffff;
  --border:#e5e7eb;
  --link:#0b66c3;
  --link-hover:#084a8f;
  --shadow:0 2px 10px rgba(0,0,0,.06);
  --radius:10px;
}

*{ box-sizing: border-box; }

html,body{
  margin:0;
  padding:0;
  height:100%;
}

body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color:var(--text);
  background:var(--bg);
  display:flex;             /* Sticky-Footer-Layout */
  flex-direction:column;    /* Spaltenlayout */
}

a{ color:var(--link); text-decoration:none; }
a:hover{ color:var(--link-hover); }

/* ====== Header + Navigation ====== */
.site-header{
  background: var(--panel);
  border-bottom:1px solid var(--border);
  box-shadow: var(--shadow);
}

.container{
  max-width: 1100px;
  margin: 0 auto;
  padding: .8rem 1rem;
}

.header-inner{
  display: grid;
  grid-template-columns: 1fr;
  gap: .6rem;
  align-items: center;
  justify-items: center;
  position: relative;
}

/* Brand */
.brand{
  display: grid;
  justify-items: center;
  gap: .15rem;
  color: inherit;
}
.brand-title{ font-weight: 700; letter-spacing: .2px; }
.brand-sub{ font-size: .95rem; color: var(--muted); }

/* Nav – zentriert auf Desktop, Burger auf Mobil */
.nav{
  display: flex;
  gap: .25rem;
  padding: .25rem;
  background: #fafafa;
  border:1px solid var(--border);
  border-radius: 999px;
}
.nav a{
  padding: .5rem .85rem;
  border-radius: 999px;
  color: var(--link);
}
.nav a[aria-current="page"]{
  background:#eef4fb;
  color: var(--link-hover);
  font-weight: 600;
}
.nav a:hover{
  background:#eef4fb;
}

/* Burger Toggle */
.nav-toggle{ display:none; }
.nav-toggle-btn{
  display:none;
  width:42px; height:34px;
  position:absolute; right:1rem; top:1rem;
  cursor:pointer;
}
.nav-toggle-btn span{
  position:absolute; left:7px; right:7px; height:2px;
  background:#222; transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle-btn span:nth-child(1){ top:9px; }
.nav-toggle-btn span:nth-child(2){ top:16px; }
.nav-toggle-btn span:nth-child(3){ top:23px; }

/* ====== Content ====== */
.content{
  max-width: 900px;
  margin: 1.6rem auto 2.2rem;
  background: var(--panel);
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  /* kein flex-grow -> Box zieht nicht bis unten */
}

h1{
  text-align:center;
  font-size:1.6rem;
  margin: 0 0 1.25rem;
  font-weight: 650;
}

/* Liste */
.feature-list{
  list-style: none;
  padding:0;
  margin:0;
  display:grid;
  gap:.65rem;
  max-width: 720px;
  margin: .6rem auto 0;
}
.feature-list li{
  text-align: center;
  font-size:1.06rem;
  line-height:1.45;
  letter-spacing:.1px;
}

/* ====== Footer ====== */
footer{
  text-align:center;
  padding: 1.4rem 1rem;
  color: var(--muted);
  background: var(--panel);
  border-top:1px solid var(--border);
  margin-top:auto;          /* schiebt Footer an den unteren Rand */
}

/* ====== Responsive ====== */
@media (max-width: 860px){
  .nav-toggle-btn{ display:block; }
  .nav{
    position:absolute;
    top:60px; left:1rem; right:1rem;
    border-radius: 12px;
    padding:.35rem;
    display:grid;
    gap:.25rem;
    border:1px solid var(--border);
    background: var(--panel);
    box-shadow: var(--shadow);
    transform: translateY(-18px);
    opacity:0; pointer-events:none;
    transition: opacity .15s ease, transform .15s ease;
  }
  .nav a{
    border-radius:8px;
    padding:.8rem 1rem;
  }
  .nav-toggle:checked ~ .nav{
    transform: translateY(0);
    opacity:1; pointer-events:auto;
  }
  .nav-toggle:checked + .nav-toggle-btn span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
  .nav-toggle:checked + .nav-toggle-btn span:nth-child(2){ opacity:0; }
  .nav-toggle:checked + .nav-toggle-btn span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }
}

/* ====== Motion reduziert ====== */
@media (prefers-reduced-motion: reduce){
  *{ transition:none !important; }
}