:root {
  /* Flächen (dunkel) */
  --bg: #070a10;  --bg-2: #0b0f17;
  --panel: #111824; --panel-2: #151d2c; --panel-3: #1a2436;
  --line: #222d40; --line-2: #2c3a52;
  /* Text */
  --text: #eef3fb; --muted: #91a0b6; --muted-2: #6a7890;
  /* Marken-Akzente: Teal/Emerald + Amber */
  --accent: #15c8a3; --accent-2: #4fe6c4;
  --amber: #ffb13d;  --good: #2bd17e;
  --warn: #ffc857;   --bad: #ff6b6b;
  /* Verläufe */
  --grad-brand: linear-gradient(110deg, #ffb13d 0%, #2bd17e 46%, #00c2b8 100%);
  --grad-accent: linear-gradient(135deg, #00c2b8 0%, #2bd17e 100%);
  /* Form */
  --r-sm: 10px; --r-md: 14px; --r-lg: 20px; --r-pill: 999px;
  --maxw: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--text);
  background:
    radial-gradient(900px 520px at 80% -8%, rgba(255,177,61,.10), transparent 60%),
    radial-gradient(1100px 640px at 10% -4%, rgba(0,194,184,.18), transparent 55%),
    var(--bg);
  font: 16px/1.65 "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(7,10,16,.72); backdrop-filter: blur(14px) saturate(140%); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { font-weight: 800; font-size: 19px; letter-spacing: .3px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand .tag { font-size: 11px; color: var(--muted); border: 1px solid var(--line); padding: 2px 8px; border-radius: 20px; margin-left: 6px; vertical-align: middle; }
.navlinks { display: flex; align-items: center; gap: 22px; }
.navlinks a { color: var(--muted); font-weight: 500; }
.navlinks a:hover { color: var(--text); text-decoration: none; }
.btn { display: inline-block; background: var(--grad-accent); color: #042018; padding: 11px 20px; border-radius: var(--r-sm); font-weight: 700; border: none; cursor: pointer; box-shadow: 0 8px 22px -10px rgba(0,194,184,.7); transition: transform .15s, box-shadow .15s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -10px rgba(0,194,184,.85); text-decoration: none; }
.btn.ghost { background: transparent; border: 1px solid var(--line-2); color: var(--text); box-shadow: none; }
.btn.good { background: var(--grad-brand); color: #2a1500; }
.navtoggle { display: none; background: none; border: 1px solid var(--line); color: var(--text); border-radius: 8px; padding: 6px 10px; font-size: 18px; cursor: pointer; }

/* Hero */
.hero { padding: 80px 0 48px; text-align: center; }
.hero .eyebrow { color: var(--accent); font-weight: 700; letter-spacing: .5px; text-transform: uppercase; font-size: 13px; }
.hero h1 { font-size: clamp(32px, 6vw, 56px); line-height: 1.08; margin: 14px 0 16px; }
.hero h1 .grad { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 18px; color: var(--muted); max-width: 680px; margin: 0 auto 28px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Sections */
section.block { padding: 56px 0; border-top: 1px solid var(--line); }
section.block h2 { font-size: 28px; margin: 0 0 8px; }
section.block .sub { color: var(--muted); margin: 0 0 28px; }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 820px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.card .ico { font-size: 28px; }
.card h3 { margin: 10px 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.step { background: var(--panel-2); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.step .n { width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 800; margin-bottom: 10px; }

/* Article (guide/about/legal) */
.article { padding: 48px 0 64px; }
.article h1 { font-size: 34px; margin: 0 0 6px; }
.article > .wrap > p.intro { color: var(--muted); font-size: 17px; margin-top: 0; }
.article h2 { font-size: 22px; margin: 34px 0 10px; border-top: 1px solid var(--line); padding-top: 22px; }
.article h3 { font-size: 17px; margin: 20px 0 6px; }
.article p, .article li { color: #cfd6e6; }
.article ul { padding-left: 20px; }
.article table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
.article th, .article td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; }
.article th { background: var(--panel-2); }
.toc { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; }
.toc ul { margin: 6px 0 0; }
.note { background: rgba(79,140,255,.08); border: 1px solid var(--accent); border-radius: 10px; padding: 12px 16px; color: #cfe0ff; font-size: 14px; }
.warnbox { background: rgba(255,200,87,.08); border: 1px solid var(--warn); border-radius: 10px; padding: 12px 16px; color: #ffe6ad; font-size: 14px; }

/* FAQ */
.faq details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 4px 18px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--accent); font-weight: 800; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 14px; color: var(--muted); }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer a { color: var(--muted); }
footer .flinks { display: flex; gap: 18px; flex-wrap: wrap; }

@media (max-width: 720px) {
  .navlinks { position: absolute; top: 62px; left: 0; right: 0; background: var(--panel); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; padding: 8px 0; display: none; }
  .navlinks.open { display: flex; }
  .navlinks a { padding: 12px 20px; }
  .navlinks .btn { margin: 8px 20px; text-align: center; }
  .navtoggle { display: inline-block; }
}