/* U-Mutation GmbH – Stylesheet
   Bewusst ohne externe Schriftarten/CDNs: keine Datenübertragung an Dritte (DSGVO). */

:root {
  --bg: #fbfbfa;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5b6170;
  --line: #e4e5e9;
  --accent: #0f766e;
  --accent-strong: #0b5c56;
  --accent-soft: #e6f4f2;
  --brand: #0f766e;
  --brand-strong: #0b5c56;
  --radius: 14px;
  --max: 1120px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a20;
    --text: #eceef2;
    --muted: #a3a9b6;
    --line: #2a2f38;
    --accent: #2dd4bf;
    --accent-strong: #5eead4;
    --accent-soft: #12302d;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
a { color: var(--accent); }
a:hover { color: var(--accent-strong); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--brand); color: #fff; padding: .6rem 1rem; z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 1rem; }
.logo { display: inline-flex; align-items: center; gap: .55rem; font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; letter-spacing: -.01em; }
.logo svg { width: 28px; height: 28px; }
.nav { display: flex; gap: 1.5rem; }
.nav a { color: var(--muted); text-decoration: none; font-size: .95rem; }
.nav a:hover { color: var(--text); }
@media (max-width: 720px) { .nav { display: none; } }

/* Buttons */
.btn {
  display: inline-block; padding: .8rem 1.35rem; border-radius: 999px;
  font-weight: 600; font-size: .98rem; text-decoration: none; border: 1px solid transparent;
  cursor: pointer; font-family: inherit;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-strong); color: #fff; }
.btn-ghost { border-color: var(--line); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--muted); color: var(--text); }

/* Hero */
.hero { padding: 6rem 0 5rem; }
.eyebrow { display: inline-block; font-size: .82rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; }
.hero h1 { font-size: clamp(2.2rem, 5.5vw, 3.8rem); line-height: 1.08; letter-spacing: -.025em; margin: 0 0 1.25rem; max-width: 16ch; }
.hero p.lead { font-size: 1.2rem; color: var(--muted); max-width: 58ch; margin: 0 0 2rem; }
.hero .actions { display: flex; flex-wrap: wrap; gap: .75rem; }

/* Sections */
section { padding: 4.5rem 0; }
section + section { border-top: 1px solid var(--line); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); letter-spacing: -.02em; line-height: 1.2; margin: 0 0 .75rem; }
.section-intro { color: var(--muted); max-width: 60ch; margin: 0 0 2.5rem; }

.grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.75rem; }
.card h3 { margin: .9rem 0 .5rem; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); font-size: 1rem; }
.icon { width: 44px; height: 44px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.icon svg { width: 22px; height: 22px; }

.steps { list-style: none; padding: 0; margin: 0; counter-reset: s; display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.steps li { counter-increment: s; padding-top: 1rem; border-top: 2px solid var(--accent); }
.steps li::before { content: "0" counter(s); font-weight: 700; color: var(--accent); font-size: .9rem; }
.steps h3 { margin: .35rem 0 .35rem; font-size: 1.08rem; }
.steps p { margin: 0; color: var(--muted); font-size: 1rem; }

.split { display: grid; gap: 3rem; grid-template-columns: 1fr 1fr; align-items: start; }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; gap: 2rem; } }
.facts { list-style: none; padding: 0; margin: 0; }
.facts li { padding: .9rem 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 1rem; }
.facts li span:first-child { color: var(--muted); }

/* Form */
form { display: grid; gap: 1rem; }
label { font-weight: 600; font-size: .95rem; display: block; margin-bottom: .35rem; }
.req { color: var(--accent); }
input[type=text], input[type=email], textarea {
  width: 100%; padding: .75rem .9rem; font: inherit; font-size: 1rem;
  border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--text);
}
input:focus, textarea:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }
textarea { min-height: 150px; resize: vertical; }
.hint { font-size: .88rem; color: var(--muted); margin: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Legal pages */
.legal { padding: 4rem 0 5rem; }
.legal .container { max-width: 800px; }
.legal h1 { font-size: clamp(2rem, 4vw, 2.6rem); letter-spacing: -.02em; margin: 0 0 2rem; }
.legal h2 { font-size: 1.35rem; margin: 2.5rem 0 .6rem; }
.legal h3 { font-size: 1.08rem; margin: 1.6rem 0 .4rem; }
.legal p, .legal li { color: var(--text); }
.legal address { font-style: normal; }
.placeholder { background: #fff3c4; color: #5c4400; padding: 0 .25em; border-radius: 4px; }
@media (prefers-color-scheme: dark) { .placeholder { background: #4a3a06; color: #ffe08a; } }
.note { background: var(--accent-soft); border-radius: var(--radius); padding: 1rem 1.25rem; font-size: .95rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 2.5rem 0; font-size: .92rem; color: var(--muted); }
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.site-footer nav { display: flex; gap: 1.25rem; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--text); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Produkt-Highlight */
.product { background: var(--surface); }
.product-head { display: grid; grid-template-columns: 1.4fr 1fr; gap: 3rem; align-items: start; margin-bottom: 2.5rem; }
@media (max-width: 820px) { .product-head { grid-template-columns: 1fr; gap: 2rem; } }
.product h2 { font-size: clamp(2rem, 4.5vw, 3rem); margin-bottom: .5rem; }
.product-claim { font-size: 1.3rem; font-weight: 600; line-height: 1.35; margin: 0 0 1rem; }
.product .actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.75rem 0 .75rem; }
.assistants { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; background: var(--bg); }
.assistants-title { font-size: .82rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin: 0 0 .75rem; }
.assistants ul { list-style: none; padding: 0; margin: 0 0 1.5rem; display: flex; flex-wrap: wrap; gap: .5rem; }
.assistants ul:last-child { margin-bottom: 0; }
.assistants li { border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: .3rem .8rem; font-size: .92rem; }
.verdicts li { display: inline-flex; align-items: center; gap: .45rem; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot-rec { background: #16a34a; } .dot-men { background: #d97706; } .dot-abs { background: #9ca3af; }
.feature-grid .card h3 { margin-top: 0; }

/* Sprachumschalter */
.site-header .nav { margin-left: auto; }
.lang-switch { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px; flex-shrink: 0; }
.lang-switch a { padding: .25rem .65rem; border-radius: 999px; font-size: .82rem; font-weight: 600; color: var(--muted); text-decoration: none; }
.lang-switch a:hover { color: var(--text); }
.lang-switch a[aria-current] { background: var(--brand); color: #fff; }