/* ===== Reset & Basics (Dark + Azure) ===== */
    *, *::before, *::after { box-sizing: border-box; }
    html, body { margin: 0; padding: 0; width: 100%; overflow-x: hidden; }
    html { scrollbar-gutter: stable both-edges; }
    :root{
      --container: 1180px;
      --gutter: 18px;

      /* Neue vertikale Abstände */
      --section-y: 72px;
      --section-y-lg: 96px;

      --bg: #0b0f14;
      --panel: #0f1621;
      --panel-2: #0c121a;
      --text: #e6edf3;
      --muted: #94a3b8;
      --border: rgba(255,255,255,0.08);
      --accent: #00B4FF;
      --accent-weak: rgba(0,180,255,.22);
      --radius: 18px;

      /* Header-Höhe für Blur/Progress */
      --header-h: 100px;
    }
    body { font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); }
    a { color: var(--accent); text-decoration: none; }
    a:hover { text-decoration: underline; }
    .wrap, .container { max-width: var(--container); margin-inline: auto; padding-inline: calc(var(--gutter) * 1.2); }

    /* Utility: großzügige Abschnittsabstände */
    section.wrap { padding-block: var(--section-y); }
    @media (min-width: 960px){
      section.wrap { padding-block: var(--section-y-lg); }
    }

    /* Anker-Offset für fixen Header */
    :where(section[id]){ scroll-margin-top: var(--header-h); }

    /* ===== Transparent Header over Hero ===== */
    .site-header {
      position: fixed; inset: 0 0 auto 0; z-index: 1000; width: 100%;
      height: var(--header-h);
      border-bottom: 1px solid transparent;
      background: transparent;
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
      transition: background .25s ease, border-color .25s ease, box-shadow .25s ease;
    }
    body.scrolled .site-header,
    .offcanvas.open ~ .site-header,
    body.menu-open .site-header {
      background: linear-gradient(180deg, rgba(0,180,255,.18), rgba(12,18,26,.86));
      border-bottom-color: var(--accent-weak);
      backdrop-filter: blur(6px);
      -webkit-backdrop-filter: blur(6px);
      box-shadow: 0 12px 24px rgba(0,0,0,.4), 0 6px 24px rgba(0,180,255,.12);
    }

    /* Header-Layout */
    .site-header .container{
      display: grid;
      grid-template-columns: 1fr auto 1fr; /* L | LOGO | R */
      align-items: center;
      gap: 24px;
      height: 100%;
      position: relative;
    }
    .brand{ grid-column: 2; justify-self: center; position: relative; z-index: 2; }
    .main-nav{ grid-column: 3; justify-self: end; position: relative; z-index: 2; }
    .menu-toggle{ grid-column: 3; justify-self: end; position: relative; z-index: 2; }

    .brand a{ display:inline-flex; align-items:center; }
    .brand img{
      padding-top: 10px;
      padding-bottom: 20px;
      height: 100px;
    }

    .main-nav ul { display: flex; gap: 22px; list-style: none; margin: 0; padding: 0; }
    .main-nav a { display: inline-block; padding: 12px 10px; border-radius: 12px; color: var(--text); }
    .main-nav a:hover { background: rgba(255,255,255,.08); text-decoration: none; }
    .main-nav a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
    .main-nav a.is-active{
      background: rgba(0,180,255,.12);
      box-shadow: 0 0 0 1px var(--accent-weak) inset;
      text-decoration: none;
    }

    .menu-toggle {
      display: none;
      border: 1px solid var(--border);
      background: rgba(12,18,26,.6);
      padding: 15px;
      border-radius: 12px;
      cursor: pointer;
      box-shadow: 0 8px 22px rgba(0,0,0,.45), 0 6px 18px var(--accent-weak);
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 5px;
    }
    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text);
      border-radius: 1px;
      transition: transform .25s ease, opacity .25s ease;
    }
    body.menu-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    body.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
    body.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    /* ===== Offcanvas (Mobile Menü) ===== */
    .offcanvas {
      position: fixed; inset: 0; width: 100%; background: var(--panel-2);
      transform: translateX(100%); transition: transform .25s ease; z-index: 1100;
      display: grid; grid-template-rows: auto 1fr;
    }
    .offcanvas.open { transform: translateX(0); }
    .offcanvas-inner { padding: 16px; display: grid; grid-template-rows: auto 1fr; }
    .off-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
    .off-nav ul { list-style: none; margin: 0; padding: 16px 0 0; display: grid; gap: 10px; }
    .off-nav a { display: block; padding: 12px 10px; border-radius: var(--radius); color: var(--accent); }
    .off-nav a:hover { background: rgba(0,180,255,.08); }
    .off-nav a.is-active{
      background: rgba(0,180,255,.12);
      box-shadow: 0 0 0 1px var(--accent-weak) inset;
      text-decoration: none;
    }
    .close { border: 1px solid var(--border); background: var(--panel); color: var(--text); padding: 10px 14px; border-radius: var(--radius); cursor: pointer; }
    .no-scroll { overflow: hidden; }

    /* ===== Hero ===== */
    .hero {
      min-height: 20px;
      display: grid; align-items: end;
      background:
        radial-gradient(1000px 300px at 20% 0%, rgba(0,180,255,.14), transparent 60%),
        radial-gradient(1000px 400px at 80% 0%, rgba(0,180,255,.10), transparent 60%),
        linear-gradient(180deg, rgba(11,15,20,1) 0%, rgba(11,15,20,.35) 35%, rgba(11,15,20,0) 100%),
        var(--bg);
      padding: 140px 0 72px;
      box-shadow: 0 10px 34px rgba(0,0,0,.45), 0 14px 38px rgba(0,180,255,.22);
    }
    .hero .wrap { max-width: 980px; }
    .hero h1 {
      color: var(--text);
      font-size: clamp(32px, 6.2vw, 60px);
      line-height: 1.1;
      margin: 12px 0 18px;
      letter-spacing: .2px;
    }
    .hero h1 .accent { color: var(--accent); text-shadow: 0 0 24px rgba(0,180,255,.35); }
    .hero .intro {
      max-width: 52ch;
      color: #d1d9e0;
      font-size: clamp(17px, 2vw, 19px);
      line-height: 1.75;
      margin-top: 8px;
      margin-bottom: 18px;
    }

    /* CTA */
    .cta { display: inline-block; background: var(--accent); color: #00131a; padding: 14px 18px; border-radius: var(--radius); border: none; cursor: pointer; font-weight: 700;
      box-shadow: 0 10px 26px rgba(0,180,255,.35), 0 12px 28px rgba(0,0,0,.45);
      transition: transform .2s ease, filter .2s ease;
    }
    .cta:hover { filter: brightness(1.05); transform: translateY(-1px); text-decoration: none; }
    .cta.secondary {
      background: rgba(0,180,255,.06);
      color: var(--accent);
      border: 1px solid rgba(0,180,255,.38);
      box-shadow: 0 8px 22px rgba(0,0,0,.45), 0 6px 18px var(--accent-weak);
    }
    .cta.secondary:hover{ filter: brightness(1.05); transform: translateY(-1px); text-decoration: none; }
    .cta-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; margin-top: 18px; }

    /* Sections & Cards */
    h2, h3, h4 { margin: 0 0 12px; color: var(--accent); }
    .wrap > h3 { margin-top: 4px; margin-bottom: 14px; letter-spacing: .2px; }
    .wrap > p.sub { margin-top: 4px; margin-bottom: 24px; color: var(--muted); }
    .muted{ color: var(--muted); font-size: .95em; }

    .list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
    .dot { display: inline-block; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; margin-right: 8px; vertical-align: 2px; box-shadow: 0 0 12px rgba(0,180,255,.6); }
    .list li { display: grid; grid-template-columns: 16px 1fr; align-items: start; gap: 10px; }

    .cards { display: grid; grid-template-columns: 1fr; gap: 18px; justify-items: center; }
    @media (min-width: 980px) { .cards { grid-template-columns: repeat(3, 1fr); gap: 22px; } }
    .cards > a.card{ display: block; width: min(920px, 100%); }

    .card {
      background:
        linear-gradient(var(--panel), var(--panel)) padding-box,
        linear-gradient(135deg, rgba(0,180,255,.28), rgba(255,255,255,.06)) border-box;
      border: 1px solid transparent;
      border-radius: var(--radius);
      padding: 18px;
      box-shadow: 0 8px 22px rgba(0,0,0,.42), 0 10px 26px var(--accent-weak), 0 1px 0 rgba(255,255,255,.05) inset;
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .card:hover{ transform: translateY(-2px); }

    footer { border-top: 1px solid var(--border); margin-top: 34px; background: var(--panel-2); }
    .footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 18px var(--gutter); max-width: var(--container); margin: 0 auto; }
    .foot-links { display: flex; gap: 14px; flex-wrap: wrap; }

    /* Scroll Progress */
    .scroll-progress {
      position: absolute;
      top: 0; right: 0;
      height: var(--header-h);
      width: 100%;
      transform: scaleX(var(--scroll, 0));
      transform-origin: right center;
      background: linear-gradient(90deg, rgba(0,180,255,.1), rgba(0,180,255,.15));
      box-shadow: 0 0 12px rgba(0,0,0,.8), 0 0 12px rgba(0,180,255,.4) inset;
      z-index: 1;
      border-radius: 0 0 2px 2px;
      pointer-events: none;
    }

    /* Responsive nav visibility */
    @media (max-width: 900px) {
      .main-nav { display: none; }
      .menu-toggle { display: inline-flex; }
      .menu-toggle { transform: translateY(-6px); }
      section.wrap { padding-block: calc(var(--section-y) * 0.9); }
      .hero { padding: 56px 0 20px; min-height: 680px;}
    }

    /* ===== Desktop: Dropdown "Rechtliches" ===== */
    .main-nav li { position: relative; }
    .main-nav .has-sub > a::after{
      content:"▾"; font-size:.9em; margin-left:6px; opacity:.8;
    }
    .main-nav .submenu{
      position:absolute; top:100%; right:0;
      background: var(--panel-2);
      border:1px solid var(--border);
      border-radius: 12px;
      padding:8px;
      box-shadow: 0 12px 24px rgba(0,0,0,.4), 0 6px 24px rgba(0,180,255,.12);
      display:none; min-width: 200px;
    }
    .main-nav .submenu a{
      display:block; padding:10px 12px; border-radius:10px; white-space:nowrap;
      color: var(--text);
    }
    .main-nav li:hover > .submenu,
    .main-nav li:focus-within > .submenu{ display:block; }

    /* ===== Cookie Banner (DSGVO/TTDSG Opt-In) ===== */
    .cookie-backdrop{
      position: fixed; inset: 0;
      background: rgba(0,0,0,.55);
      backdrop-filter: blur(4px);
      -webkit-backdrop-filter: blur(4px);
      z-index: 2000;
      display: none;
    }
    .cookie-banner{
      position: fixed;
      left: 50%;
      bottom: 18px;
      transform: translateX(-50%);
      z-index: 2001;
      width: min(920px, calc(100% - 24px));
      display: none;
    }
    .cookie-card{
      background:
        linear-gradient(var(--panel), var(--panel)) padding-box,
        linear-gradient(135deg, rgba(0,180,255,.28), rgba(255,255,255,.06)) border-box;
      border: 1px solid transparent;
      border-radius: var(--radius);
      padding: 16px;
      box-shadow: 0 18px 48px rgba(0,0,0,.55), 0 10px 26px var(--accent-weak);
    }
    .cookie-actions{
      display:flex;
      gap:10px;
      flex-wrap: wrap;
      align-items:center;
      margin-top: 12px;
    }
    .cookie-mini{ color: var(--muted); font-size: 13px; }
    .cookie-settings{
      margin-top: 12px;
      padding-top: 12px;
      border-top: 1px solid var(--border);
      display: none;
    }
    .cookie-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap: 10px;
    }
    @media (min-width: 820px){
      .cookie-grid{ grid-template-columns: 1fr 1fr; }
    }
    .cookie-option{
      border: 1px solid var(--border);
      background: rgba(12,18,26,.4);
      border-radius: 14px;
      padding: 12px;
    }
    .cookie-option label{
      display:flex; align-items:center; gap:10px;
      margin:0;
      color: var(--text);
      font-size: 15px;
    }
    .cookie-option small{
      display:block;
      color: var(--muted);
      margin-top: 6px;
      line-height: 1.45;
    }
    .cookie-option input[type="checkbox"]{
      width: 18px; height: 18px;
    }
    .cookie-option input[disabled]{ opacity: .7; }

    /* ===== Blog ===== */
    .post{ max-width: 920px; margin-inline: auto; }
    .post-head{ display: grid; gap: 8px; margin-bottom: 10px; }
    .post-meta{
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
      color: var(--muted);
      font-size: 14px;
    }
    .meta-sep{ opacity: .8; }
    .post-toc{
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 14px 0 18px;
      padding: 10px 12px;
      border: 1px solid var(--border);
      border-radius: 14px;
      background: rgba(12,18,26,.4);
    }
    .post-toc a{
      display: inline-flex;
      padding: 6px 10px;
      border-radius: 12px;
      background: rgba(255,255,255,.05);
      color: var(--text);
      text-decoration: none;
    }
    .post-toc a:hover{ background: rgba(255,255,255,.08); text-decoration: none; }
    .post-figure{ margin: 14px 0 18px; }
    .post-figure img{
      width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: 0 8px 22px rgba(0,0,0,.4), 0 10px 26px var(--accent-weak), 0 1px 0 rgba(255,255,255,.05) inset;
    }
    .img-ph{
      border: 1px dashed var(--border);
      border-radius: var(--radius);
      background: rgba(0,180,255,.06);
      min-height: 180px;
      display: grid;
      place-items: center;
      text-align: center;
      color: var(--muted);
      box-shadow: 0 8px 22px rgba(0,0,0,.4), 0 10px 26px var(--accent-weak), 0 1px 0 rgba(255,255,255,.05) inset;
      padding: 18px;
    }
    figcaption{ margin-top: 8px; color: var(--muted); font-size: 14px; }
    code{ font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: .95em; }

    /* ===== Registry UI ===== */
    .registry-grid{
      display: grid;
      grid-template-columns: 1fr;
      gap: 18px;
      margin-bottom: 18px;
    }
    @media (min-width: 980px){
      .registry-grid{ grid-template-columns: 1fr 2fr; }
    }
    .registry-form{
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
      margin-top: 10px;
    }
    .registry-form input,
    .registry-form select{
      padding: 12px 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      font: inherit;
      background: #0e1520;
      color: var(--text);
      box-shadow: 0 6px 18px rgba(0,0,0,.45) inset;
      outline: none;
      min-width: 220px;
    }
    .registry-form select{ min-width: 170px; }
    .registry-form input:focus,
    .registry-form select:focus{ outline: 2px solid var(--accent); outline-offset: 2px; }
    .registry-actions{ display:flex; gap:10px; flex-wrap:wrap; }
    .registry-result{ margin-top: 10px; }

    .registry-shell{
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 18px;
      background: rgba(12,18,26,.35);
      box-shadow: 0 8px 22px rgba(0,0,0,.35), 0 10px 26px var(--accent-weak), 0 1px 0 rgba(255,255,255,.04) inset;
    }
    /* Weniger Abstand zwischen Registry und Beiträgen */
    section#registry.wrap{ padding-bottom: 28px; }
    section#posts.wrap{ padding-top: 28px; padding-bottom: 28px; }
    section.post-detail.wrap{ padding-top: 28px; }

    /* ===== Modal ===== */
    .modal-backdrop{
      position: fixed; inset: 0;
      background: rgba(0,0,0,.62);
      backdrop-filter: blur(6px);
      -webkit-backdrop-filter: blur(6px);
      z-index: 2300;
      display: none;
      padding: 18px;
      align-items: center;
      justify-content: center;
    }
    .modal-backdrop.open{ display: flex; }
    .modal{
      width: min(720px, 100%);
      border-radius: var(--radius);
      background:
        linear-gradient(var(--panel), var(--panel)) padding-box,
        linear-gradient(135deg, rgba(0,180,255,.28), rgba(255,255,255,.06)) border-box;
      border: 1px solid transparent;
      box-shadow: 0 18px 55px rgba(0,0,0,.65), 0 10px 26px var(--accent-weak);
      padding: 18px;
    }
    .modal textarea{
      width: 100%;
      min-height: 140px;
      padding: 12px 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      font: inherit;
      background: #0e1520;
      color: var(--text);
      box-shadow: 0 6px 18px rgba(0,0,0,.45) inset;
      outline: none;
      resize: vertical;
    }
    .modal textarea:focus{ outline: 2px solid var(--accent); outline-offset: 2px; }
    .modal-actions{ display:flex; gap:10px; flex-wrap:wrap; justify-content: flex-end; margin-top: 12px; }
    .modal-meta{ display:flex; align-items:center; justify-content: space-between; gap: 10px; margin-top: 8px; }
    .modal-meta small{ color: var(--muted); }