/* Standard = Dark */
:root {
  --bg: #0b0c10;
  --panel: #111217;
  --panel-2: #161821;
  --text: #e8eaf0;
  --muted: #a8acb8;
  --brand: #7c5cff;
  --brand-2: #4bd0ff;
  --ring: 0 0 0 3px rgba(124, 92, 255, .25);
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
  color-scheme: dark; /* nur dark hier */
}

/* Light-Override wird per JS-Klasse aktiviert */
html.light {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --panel-2: #f2f4f8;
  --text: #12131a;
  --muted: #5a5e6e;
  --brand: #5b44e3;
  --brand-2: #0ea5e9;
  --shadow: 0 10px 30px rgba(10, 12, 20, .08);
  color-scheme: light;
}


* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 75px; /* Höhe deiner Nav-Leiste */
}
body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(124,92,255,.15), transparent 60%),
    radial-gradient(900px 500px at 10% 10%, rgba(75,208,255,.12), transparent 50%),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
  letter-spacing: .1px; /* + Lesbarkeit */
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; border-radius: calc(var(--radius) - 6px); }

/* Typo-Feinschliff */
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.015em; }
.prose { max-width: 65ch; }

/* Layout */
.container { width: min(1200px, 92vw); margin: 0 auto; }
.grid { display: grid; gap: 1.4rem; } /* etwas mehr Luft */
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(10px);
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
  box-shadow: 0 2px 12px rgba(0,0,0,.05);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: .9rem 0; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 700; letter-spacing: .3px; }
.logo { width: 28px; height: 28px; background: linear-gradient(135deg, var(--brand), var(--brand-2)); border-radius: 8px; box-shadow: var(--shadow); }
.nav-links { display: flex; gap: 1rem; align-items: center; }
.nav a { padding: .5rem .8rem; border-radius: 999px; opacity: .95; font-weight: 500; }
.nav a:hover { background: color-mix(in oklab, var(--text) 10%, transparent); opacity: 1; }
.theme-toggle {
  border: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
  background: var(--panel);
  border-radius: 999px; padding: .45rem .8rem; cursor: pointer;
  transition: background .2s ease, border-color .2s ease, transform .15s ease;
}
.theme-toggle:hover {
  background: color-mix(in oklab, var(--brand) 10%, var(--panel));
  border-color: color-mix(in oklab, var(--brand) 25%, var(--panel));
  transform: translateY(-1px);
}

/* Hero */
.hero { padding: 7rem 0 5rem; position: relative; } /* mehr Raum */
.hero h1 { font-size: clamp(2.2rem, 4vw, 3.6rem); line-height: 1.1; margin: 0 0 .8rem; letter-spacing: -0.02em; font-weight: 800; }
.hero p { font-size: clamp(1rem, 1.6vw, 1.125rem); color: var(--muted); margin: 0 0 1.5rem; }
.cta {
  display: inline-flex; align-items: center; gap: .6rem;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: white; padding: 1rem 1.2rem; border-radius: 12px; font-weight: 600; box-shadow: var(--shadow);
  transform: translateY(0); transition: transform .15s ease, filter .2s ease;
}
.cta:hover { transform: translateY(-2px); filter: brightness(1.06); }
.subtle {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 1rem; border: 1px solid color-mix(in oklab, var(--text) 15%, transparent); border-radius: 12px;
  transition: background .2s ease, transform .15s ease;
}
.subtle:hover { transform: translateY(-1px); }

/* Sections */
section { padding: 4rem 0; } /* mehr Abstand */
.section-title { font-size: clamp(1.6rem, 2.6vw, 2.2rem); margin: 0 0 .6rem; font-weight: 700; }
.section-sub { color: var(--muted); margin: 0 0 1.5rem; font-size: clamp(1rem, 1.4vw, 1.125rem); }

/* Visuelle Trennung */
section + section { position: relative; }
section + section::before {
  content:""; position:absolute; inset:auto 0 100% 0; height:1px;
  background: color-mix(in oklab, var(--text) 10%, transparent); opacity:.6;
}
/* Alternative abgesetzte Sektion */
section.alt {
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 92%, transparent),
    color-mix(in oklab, var(--panel-2) 96%, transparent));
  border-top: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
}

/* Cards */
.card {
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--panel) 92%, transparent),
    color-mix(in oklab, var(--panel-2) 100%, transparent));
  border: 1px solid color-mix(in oklab, var(--text) 12%, transparent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.2rem 1.2rem 1rem;
  transition: transform .18s ease, box-shadow .18s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(0,0,0,.18); }
.card img { aspect-ratio: 16 / 9; object-fit: cover; }

.chip {
  display: inline-block; padding: .35rem .6rem;
  border: 1px solid color-mix(in oklab, var(--text) 15%, transparent);
  border-radius: 999px; font-size: .82rem; opacity: .9;
  background: color-mix(in oklab, var(--text) 6%, transparent); /* dezente Füllung */
}

/* Footer */
footer { border-top: 1px solid color-mix(in oklab, var(--text) 12%, transparent); padding: 2rem 0; color: var(--muted); }

/* Forms */
.input, .textarea {
  width: 100%;
  background: var(--panel);
  border: 1px solid color-mix(in oklab, var(--text) 15%, transparent);
  border-radius: 12px;
  padding: .9rem 1rem;
  color: var(--text);
  outline: none;
  transition: box-shadow .15s ease, border-color .2s ease;
}
.input:focus, .textarea:focus { box-shadow: var(--ring); border-color: color-mix(in oklab, var(--brand) 40%, transparent); }
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--panel);
  border: 1px solid color-mix(in oklab, var(--text) 15%, transparent);
  padding: .8rem 1rem; border-radius: 12px; cursor: pointer;
  transition: transform .15s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: white; border: none; }

/* Utilities */
.muted { color: var(--muted); }
.center { text-align: center; }
.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-3{margin-top:1rem}.mt-4{margin-top:1.5rem}

/* Hero-Bild auf großen Screens etwas größer/proportioniert */
@media (min-width: 1024px){
  .hero .card { padding: .8rem; }
  .hero img { aspect-ratio: 4 / 3; }
}