*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  :root {
    --blue:        #378ADD;
    --blue-light:  #E0E0F0;
    --blue-mid:    #185FA5;
    --blue-dark:   #0C447C;
    --duck-dark:   #17222F;
    --duck-mid:    #243346;
    --duck-muted:  #607080;
    --duck-subtle: #EEF4FB;
    --duck-border: #D5E3F0;
    --green:       #3B6D11;
    --green-light: #EAF3DE;
    --red:         #A32D2D;
    --red-light:   #FCEBEB;
    --nav-h: 64px;
  }

  html { scroll-behavior: smooth; }

  body {
  font-family: system-ui, -apple-system, sans-serif;
    font-weight: 400;
    color: var(--duck-dark);
    background: #F7FAFD;
    line-height: 1.7;
  }

  /* NAV */
  nav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--nav-h);
    background: rgba(210,228,245,0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--duck-border);
    display: flex;
    align-items: center;
    padding: 0 clamp(1.5rem, 5vw, 4rem);
    gap: 2rem;
  }

  .nav-logo {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 700;
    font-size: 1.35rem;
    letter-spacing: -0.01em;
    color: var(--duck-dark);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
  }

  .nav-duck {
    width: 34px;
    height: 34px;
    background: var(--blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
  }

  .nav-links {
    display: flex;
    gap: 0.25rem;
    margin-left: auto;
    list-style: none;
  }

  .nav-links a {
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--duck-muted);
    padding: 0.4rem 0.85rem;
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
  }

  .nav-links a:hover {
    color: var(--duck-dark);
    background: var(--duck-subtle);
  }

  .nav-cta {
    background: var(--blue) !important;
    color: #fff !important;
    font-weight: 500 !important;
    padding: 0.4rem 1rem !important;
  }

  .nav-cta:hover { background: var(--blue-mid) !important; }

  /* HAMBURGER */
  .hamburger {
    display: none;
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 5px;
  }

  .hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--duck-dark);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
  }

  .mobile-menu {
    display: none;
    flex-direction: column;
    background: #F7FAFD;
    border-bottom: 1px solid var(--duck-border);
    padding: 0.75rem 1.5rem 1.25rem;
    gap: 0.25rem;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    z-index: 99;
  }

  .mobile-menu a {
    text-decoration: none;
    font-size: 0.95rem;
    color: var(--duck-muted);
    padding: 0.55rem 0;
    border-bottom: 1px solid var(--duck-border);
    transition: color 0.15s;
  }

  .mobile-menu a:last-child { border-bottom: none; }
  .mobile-menu a:hover { color: var(--duck-dark); }
  .mobile-menu.open { display: flex; }

  /* SECTIONS */
  section {
    padding: clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem);
    margin: 0 auto;
  }

  .section-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 0.75rem;
  }

  h1 {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 700;
    font-size: clamp(2.8rem, 6vw, 5rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--duck-dark);
  }

  h2 {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 700;
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--duck-dark);
    margin-bottom: 1.5rem;
  }

  h3 {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--duck-dark);
    margin-bottom: 0.5rem;
  }

  p { color: #3A5060; }

  /* HERO */
    #ueberblick {
    padding-top: clamp(5rem, 10vw, 9rem);
    padding-bottom: clamp(4rem, 8vw, 7rem);
    margin: 0 auto;
    padding-left: clamp(1.5rem, 5vw, 4rem);
    padding-right: clamp(1.5rem, 5vw, 4rem);
    scroll-margin-top: var(--nav-h);
  }

  .hero-top { margin-bottom: 2rem; }

  .hero-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--blue-light);
    color: var(--blue-dark);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.3rem 0.85rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
  }

  .hero-sub {
    font-size: 1.1rem;
    color: var(--duck-muted);
    margin-top: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 44ch;
    line-height: 1.65;
  }

  .hero-detail-wrap {
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 5vw, 4rem) 2.5rem;
  }

  .hero-detail {
    font-size: 1.05rem;
    color: #3A5060;
    line-height: 1.7;
    border-left: 3px solid var(--blue);
    padding-left: 1.1rem;
  }

  .hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

  .btn-primary {
    background: var(--blue);
    color: #fff;
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.15s;
  }

  .btn-primary:hover { background: var(--blue-mid); }

  .btn-outline {
    background: transparent;
    color: var(--duck-dark);
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 400;
    text-decoration: none;
    border: 1px solid var(--duck-border);
    transition: background 0.15s;
  }

  .btn-outline:hover { background: var(--duck-subtle); }

  /* Hero visual */
  .hero-visual {
    background: var(--duck-subtle);
    border: 1px solid var(--duck-border);
    border-radius: 16px;
    padding: 1.75rem;
    font-size: 0.82rem;
  }

  .hv-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--duck-border);
  }

  .hv-row:last-child { border-bottom: none; }
  .hv-label { color: var(--duck-muted); }
  .hv-val { font-weight: 500; color: var(--duck-dark); }

  .hv-badge {
    font-size: 0.72rem;
    padding: 0.2rem 0.6rem;
    border-radius: 100px;
    font-weight: 500;
  }

  .badge-green { background: var(--green-light); color: var(--green); }
  .badge-red   { background: var(--red-light);   color: var(--red); }
  .badge-blue  { background: var(--blue-light);  color: var(--blue-dark); }

  .hv-title {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--duck-muted);
    margin-bottom: 1rem;
  }

  .hv-chart {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 70px;
    margin: 1rem 0;
  }

  .hv-bar { flex: 1; background: var(--blue-light); border-radius: 4px 4px 0 0; }
  .hv-bar.active { background: var(--blue); }

  /* DIVIDER */
  .full-divider {
    border: none;
    border-top: 1px solid var(--duck-border);
    margin: 0 auto;
  }

  /* FEATURES KARTEN */
  #features { scroll-margin-top: var(--nav-h); }

  .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
  }

  .feature-card {
    background: white;
    border: 1px solid var(--duck-border);
    border-radius: 14px;
    padding: 1.75rem;
    transition: border-color 0.15s;
  }

  .feature-card:hover { border-color: var(--blue); }

  .feature-icon {
    width: 42px;
    height: 42px;
    background: var(--blue-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 1rem;
  }

  .feature-card p {
    font-size: 0.9rem;
    color: var(--duck-muted);
    margin-top: 0.4rem;
    line-height: 1.6;
  }

  /* FEATURE DETAIL */
  #feature-detail { scroll-margin-top: var(--nav-h); }

  .detail-intro {
    max-width: 55ch;
    color: var(--duck-muted);
    margin-bottom: 2.5rem;
  }

  .detail-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--duck-border);
    border-radius: 14px;
    overflow: hidden;
    background: white;
  }

  .detail-item {
    border-bottom: 1px solid var(--duck-border);
  }

  .detail-item:last-child { border-bottom: none; }

  .detail-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    user-select: none;
    transition: background 0.12s;
  }

  .detail-header:hover { background: var(--duck-subtle); }

  .detail-icon {
    width: 36px;
    height: 36px;
    background: var(--blue-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    flex-shrink: 0;
  }

  .detail-title {
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--duck-dark);
    flex: 1;
  }

  .detail-arrow {
    font-size: 0.75rem;
    color: var(--duck-muted);
    transition: transform 0.2s;
    flex-shrink: 0;
  }

  .detail-item.open .detail-arrow { transform: rotate(180deg); }

  .detail-body {
    display: none;
    padding: 0 1.5rem 1.5rem 4.1rem;
  }

  .detail-item.open .detail-body { display: block; }

  .detail-body ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-top: 0.25rem;
  }

  .detail-body ul li {
    font-size: 0.9rem;
    color: #3A5060;
    padding-left: 1.25rem;
    position: relative;
    line-height: 1.55;
  }

  .detail-body ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    background: var(--blue);
    border-radius: 50%;
  }

  .detail-body p {
    font-size: 0.9rem;
    color: var(--duck-muted);
    margin-bottom: 0.75rem;
    line-height: 1.6;
  }

  /* LIMITIERUNGEN */
  #limitierungen { scroll-margin-top: var(--nav-h); }

  .limit-intro {
    max-width: 55ch;
    color: var(--duck-muted);
    margin-bottom: 2.5rem;
  }

  .limit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr));
    gap: 1.25rem;
  }

  .limit-card {
    background: white;
    border: 1px solid var(--duck-border);
    border-radius: 14px;
    padding: 1.5rem 1.75rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
  }

  .limit-dot {
    width: 8px;
    height: 8px;
    background: var(--duck-muted);
    border-radius: 50%;
    margin-top: 0.55rem;
    flex-shrink: 0;
  }

  .limit-card h3 { font-size: 1rem; margin-bottom: 0.3rem; }
  .limit-card p  { font-size: 0.875rem; color: var(--duck-muted); line-height: 1.55; }

  /* KONTAKT */
  #kontakt { scroll-margin-top: var(--nav-h); }

  .contact-wrap {
    background: var(--duck-dark);
    border-radius: 20px;
    padding: clamp(2.5rem, 5vw, 4rem);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
  }

  .contact-left h2 { color: #F7FAFD; margin-bottom: 1rem; }
  .contact-left p  { color: #7A9AB5; font-size: 1rem; }

  .contact-form { display: flex; flex-direction: column; gap: 1rem; }

  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

  .contact-form input,
  .contact-form textarea {
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: #F7FAFD;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.15s;
    width: 100%;
  }

  .contact-form input::placeholder,
  .contact-form textarea::placeholder { color: #4A6880; }

  .contact-form input:focus,
  .contact-form textarea:focus { border-color: var(--blue); }

  .contact-form textarea { resize: vertical; min-height: 110px; }

  .btn-send {
    background: var(--blue);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 0.8rem 1.75rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    align-self: flex-start;
    transition: background 0.15s;
  }

  .btn-send:hover { background: var(--blue-mid); }

  /* FOOTER */
  footer {
    background: #D2E4F5;
    border-top: 1px solid var(--duck-border);
    padding: 3rem clamp(1.5rem, 5vw, 4rem);
  }

  .footer-inner {
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
  }

  .footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--duck-dark);
    margin-bottom: 0.75rem;
  }

  .footer-tagline { font-size: 0.85rem; color: var(--duck-muted); line-height: 1.55; }

  .impressum-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .impressum-col h4 {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--duck-muted);
    margin-bottom: 0.75rem;
  }

  .impressum-col p,
  .impressum-col a {
    font-size: 0.85rem;
    color: #3A5060;
    text-decoration: none;
    display: block;
    line-height: 1.8;
  }

  .impressum-col a:hover { color: var(--blue); }

  .footer-bottom {
    margin: 2rem auto 0;
    padding-top: 1.25rem;
    border-top: 1px solid var(--duck-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--duck-muted);
  }

  /* RESPONSIVE */
  @media (max-width: 768px) {
    .nav-links  { display: none; }
    .hamburger  { display: flex; }

    .hero-bottom { grid-template-columns: 1fr; }
    .hero-visual { display: none; }

    .contact-wrap { grid-template-columns: 1fr; gap: 2rem; }
    .form-row     { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
    .impressum-grid { grid-template-columns: 1fr 1fr; }

  /* neu hinzufügen: */
  .features-grid,
  .limit-grid,
  .impressum-grid {
    grid-template-columns: 1fr;
  }

  body { font-size: 16px; }
  h1   { font-size: 2.2rem; }
  h2   { font-size: 1.6rem; }

  }

  @media (max-width: 480px) {
    .impressum-grid { grid-template-columns: 1fr; }
  }