/* ===== Scoped Design-System (Glassmorphism) ===== */
    .yb-bmi *,
    .yb-bmi *::before,
    .yb-bmi *::after { box-sizing: border-box; }

    .yb-bmi {
      --yb-card: rgba(255,255,255,.55);
      --yb-card-solid: #ffffff;
      --yb-ink: #14241f;
      --yb-muted: #51635d;
      --yb-line: rgba(20,50,40,.12);
      --yb-brand: #2e7d59;
      --yb-brand-dark: #1f5a40;
      --yb-radius: 22px;
      --yb-glass-border: rgba(255,255,255,.7);

      --c-under: #3b82f6;
      --c-normal: #22a06b;
      --c-over: #f0b429;
      --c-ob1: #f97316;
      --c-ob2: #ef4444;
      --c-ob3: #b91c1c;

      position: relative;
      overflow: hidden;
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      color: var(--yb-ink);
      line-height: 1.6;
      margin: 0 auto;
      padding: clamp(18px, 4vw, 40px);
      border-radius: 28px;
      background: linear-gradient(155deg, #e7f4ee 0%, #eef3ff 52%, #fdf2ea 100%);
    }
    /* dekorative, unscharfe Farb-Blobs für den Glas-Effekt */
    .yb-bmi::before,
    .yb-bmi::after {
      content: ""; position: absolute; border-radius: 50%;
      filter: blur(70px); opacity: .55; z-index: 0; pointer-events: none;
      animation: yb-float 14s ease-in-out infinite;
    }
    .yb-bmi::before { width: 340px; height: 340px; background: #41c59b; top: -90px; right: -70px; }
    .yb-bmi::after  { width: 300px; height: 300px; background: #82aaff; bottom: -80px; left: -50px; animation-delay: -7s; }
    @keyframes yb-float { 0%,100% { transform: translateY(0) } 50% { transform: translateY(22px) } }
    .yb-bmi > * { position: relative; z-index: 1; }

    .yb-bmi h1, .yb-bmi h2, .yb-bmi h3 { line-height: 1.25; color: var(--yb-ink); }
    .yb-bmi h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); margin: 0 0 .35em; }
    .yb-bmi h2 { font-size: clamp(1.3rem, 3vw, 1.7rem); margin: 1.8em 0 .5em; }
    .yb-bmi h3 { font-size: 1.15rem; margin: 1.4em 0 .4em; }
    .yb-bmi p  { margin: 0 0 1em; }
    .yb-bmi .yb-lead { font-size: 1.1rem; color: var(--yb-muted); max-width: 70ch; }

    /* ===== Glas-Rechnerkarte ===== */
    .yb-calc {
      background: var(--yb-card);
      -webkit-backdrop-filter: blur(20px) saturate(1.3);
      backdrop-filter: blur(20px) saturate(1.3);
      border: 1px solid var(--yb-glass-border);
      border-radius: var(--yb-radius);
      box-shadow: 0 20px 45px rgba(20,50,40,.14), inset 0 1px 0 rgba(255,255,255,.6);
      padding: clamp(18px, 3vw, 34px);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: clamp(18px, 3vw, 34px);
      margin: 1.4em 0 0;
    }

    .yb-field { margin-bottom: 16px; }
    .yb-field .yb-label { display: block; font-weight: 700; margin-bottom: 8px; font-size: .98rem; }

    /* Geschlecht-Toggle (Glas) */
    .yb-gender { display: flex; gap: 10px; }
    .yb-gender input { position: absolute; opacity: 0; pointer-events: none; }
    .yb-gender label {
      flex: 1; text-align: center; cursor: pointer;
      border: 1.5px solid var(--yb-line); border-radius: 12px;
      padding: 12px 8px; font-weight: 600; transition: .18s ease;
      background: rgba(255,255,255,.5);
    }
    .yb-gender label:hover { border-color: var(--yb-brand); }
    .yb-gender input:checked + label {
      border-color: var(--yb-brand); background: rgba(46,125,89,.14); color: var(--yb-brand-dark);
    }
    .yb-gender input:focus-visible + label { outline: 3px solid rgba(46,125,89,.35); outline-offset: 2px; }

    /* Zahlen-Eingabe + Einheit */
    .yb-num { display: flex; align-items: baseline; gap: 8px; }
    .yb-num input[type="number"] {
      width: 110px; font-size: 1.5rem; font-weight: 700; text-align: center;
      border: 1.5px solid var(--yb-line); border-radius: 12px; padding: 8px 6px; color: var(--yb-ink);
      background: rgba(255,255,255,.6); -moz-appearance: textfield;
    }
    .yb-num input::-webkit-outer-spin-button,
    .yb-num input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
    .yb-num input:focus { outline: none; border-color: var(--yb-brand); box-shadow: 0 0 0 3px rgba(46,125,89,.18); }
    .yb-unit { color: var(--yb-muted); font-weight: 600; }

    /* Slider */
    .yb-range { width: 100%; margin-top: 12px; -webkit-appearance: none; appearance: none;
      height: 6px; border-radius: 6px; background: rgba(20,50,40,.14); outline: none; }
    .yb-range::-webkit-slider-thumb {
      -webkit-appearance: none; appearance: none; width: 24px; height: 24px; border-radius: 50%;
      background: var(--yb-brand); border: 3px solid #fff; box-shadow: 0 2px 6px rgba(0,0,0,.25); cursor: pointer;
    }
    .yb-range::-moz-range-thumb {
      width: 24px; height: 24px; border-radius: 50%; background: var(--yb-brand);
      border: 3px solid #fff; box-shadow: 0 2px 6px rgba(0,0,0,.25); cursor: pointer;
    }

    /* ===== Ergebnis: Gauge ===== */
    .yb-result { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
    .yb-result h2 { margin: 0 0 6px; }
    .yb-gauge { position: relative; width: 100%; max-width: 300px; margin: 0 auto; }
    .yb-gauge svg { width: 100%; height: auto; display: block; overflow: visible; }
    .yb-gauge-arc { fill: none; stroke-linecap: butt; stroke-width: 20; }
    #yb-needle { transform-origin: 150px 150px; transition: transform .8s cubic-bezier(.34,1.4,.5,1); will-change: transform; }
    .yb-gauge-tick { fill: var(--yb-muted); font-size: 13px; font-weight: 600; }

    .yb-result-value { display: flex; align-items: baseline; gap: 12px; justify-content: center; margin-top: 4px; }
    .yb-bmi-number {
      font-size: clamp(2.8rem, 8vw, 3.6rem); font-weight: 800; line-height: 1;
      font-variant-numeric: tabular-nums; letter-spacing: -1px;
    }
    .yb-bmi-label {
      display: inline-block; padding: 6px 14px; border-radius: 999px;
      font-weight: 700; color: #fff; font-size: .95rem;
      box-shadow: 0 6px 16px rgba(0,0,0,.18); transition: background .4s ease;
    }
    .yb-result-text { color: var(--yb-muted); margin: 12px 0 0; max-width: 38ch; }

    /* ===== Inhalt / Glas-Elemente ===== */
    .yb-content { margin-top: 8px; }
    .yb-callout {
      background: rgba(255,255,255,.5); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
      border-left: 4px solid var(--yb-brand); border-radius: 12px; padding: 14px 18px; margin: 1.2em 0;
    }
    .yb-table-wrap { overflow-x: auto; }
    .yb-bmi table {
      width: 100%; border-collapse: collapse; margin: 1em 0; font-size: .95rem;
      background: rgba(255,255,255,.45); border-radius: 12px; overflow: hidden;
    }
    .yb-bmi th, .yb-bmi td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--yb-line); }
    .yb-bmi thead th { background: rgba(46,125,89,.12); color: var(--yb-brand-dark); font-weight: 700; }

    .yb-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 10px; margin: 1.2em 0; }
    .yb-cat { border-radius: 14px; padding: 12px 14px; color: #fff; box-shadow: 0 8px 18px rgba(0,0,0,.12); }
    .yb-cat b { display: block; font-size: .8rem; opacity: .9; }
    .yb-cat span { font-size: 1.05rem; font-weight: 700; }

    .yb-faq details {
      border: 1px solid var(--yb-glass-border); border-radius: 14px; padding: 4px 16px; margin-bottom: 10px;
      background: rgba(255,255,255,.5); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
    }
    .yb-faq summary {
      cursor: pointer; font-weight: 700; padding: 12px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px;
    }
    .yb-faq summary::-webkit-details-marker { display: none; }
    .yb-faq summary::after { content: "+"; font-size: 1.4rem; color: var(--yb-brand); line-height: 1; }
    .yb-faq details[open] summary::after { content: "–"; }
    .yb-faq details > div { padding: 0 0 14px; color: var(--yb-muted); }

    .yb-cta { text-align: center; margin: 2em 0 0; }
    .yb-btn {
      display: inline-block; background: var(--yb-brand); color: #fff; text-decoration: none;
      font-weight: 700; padding: 14px 28px; border-radius: 12px; transition: .18s ease;
      box-shadow: 0 10px 22px rgba(46,125,89,.32);
    }
    .yb-btn:hover { background: var(--yb-brand-dark); transform: translateY(-1px); }

    /* ===== Bella-Figura Werbe-Block ===== */
    .yb-promo {
      position: relative; overflow: hidden; margin: 2.6em 0 0;
      border-radius: 22px; padding: clamp(22px, 3.5vw, 42px); color: #fff;
      background: linear-gradient(135deg, #2e7d59 0%, #1f5a40 100%);
      box-shadow: 0 26px 54px rgba(31,90,64,.32);
      border: 1px solid rgba(255,255,255,.18);
      display: grid; grid-template-columns: 1.35fr .9fr; gap: clamp(18px, 3vw, 34px); align-items: center;
    }
    .yb-promo.no-figure { grid-template-columns: 1fr; }
    .yb-promo-figure {
      background: #fff; border-radius: 16px; padding: 16px;
      box-shadow: 0 14px 30px rgba(0,0,0,.18);
      display: flex; align-items: center; justify-content: center;
    }
    .yb-promo-figure img { display: block; width: 100%; height: auto; max-height: 340px; object-fit: contain; }
    .yb-promo.no-figure .yb-promo-figure { display: none; }

    /* visuell ausgeblendet, aber für Crawler/Screenreader im DOM */
    .yb-visually-hidden {
      position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
      overflow: hidden; clip: rect(0,0,0,0); clip-path: inset(50%); white-space: nowrap; border: 0;
    }
    .yb-promo::after {
      content: ""; position: absolute; width: 300px; height: 300px; border-radius: 50%;
      background: rgba(255,255,255,.12); top: -130px; right: -90px; filter: blur(12px); pointer-events: none;
    }
    .yb-promo > * { position: relative; z-index: 1; }
    .yb-promo-badge {
      display: inline-block; background: rgba(255,255,255,.2); color: #fff;
      font-size: .76rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
      padding: 6px 13px; border-radius: 999px; margin-bottom: 10px;
    }
    .yb-promo h2 { color: #fff !important; margin: .1em 0 .35em; }
    .yb-promo p { color: rgba(255,255,255,.92); max-width: 62ch; }
    .yb-promo-list {
      list-style: none; padding: 0; margin: 1.1em 0 1.5em;
      display: grid; grid-template-columns: 1fr; gap: 8px;
    }
    .yb-promo-list li { padding-left: 28px; position: relative; color: #fff; font-weight: 600; }
    .yb-promo-list li::before {
      content: "✓"; position: absolute; left: 0; top: 0; font-weight: 800; color: #bff0d8;
    }
    .yb-promo-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: .3em; }
    .yb-promo .yb-btn { background: #fff; color: var(--yb-brand-dark); box-shadow: 0 12px 24px rgba(0,0,0,.2); }
    .yb-promo .yb-btn:hover { background: #eef7f2; color: var(--yb-brand-dark); }
    .yb-btn-ghost {
      display: inline-block; color: #fff; text-decoration: none; font-weight: 700;
      padding: 14px 24px; border-radius: 12px; border: 1.5px solid rgba(255,255,255,.65); transition: .18s ease;
    }
    .yb-btn-ghost:hover { background: rgba(255,255,255,.14); transform: translateY(-1px); }
    .yb-promo-note { font-size: .82rem; color: rgba(255,255,255,.8); margin: 1.3em 0 0; }

    /* ===== E-E-A-T: Trust-/Autorenleiste ===== */
    .yb-meta {
      display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: center;
      margin: 0 0 1.4em; padding: 12px 18px; border-radius: 14px; font-size: .9rem;
      background: rgba(255,255,255,.5); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
      border: 1px solid var(--yb-glass-border);
    }
    .yb-meta-item { display: flex; align-items: center; gap: 8px; color: var(--yb-muted); }
    .yb-meta-item strong { color: var(--yb-ink); }
    .yb-meta-item a { color: var(--yb-brand-dark); font-weight: 600; text-decoration: none; }
    .yb-meta-item a:hover { text-decoration: underline; }
    .yb-meta-ic {
      width: 26px; height: 26px; flex: none; display: grid; place-items: center; border-radius: 50%;
      background: rgba(46,125,89,.15); color: var(--yb-brand-dark); font-weight: 800; font-size: .85rem;
    }

    /* ===== E-E-A-T: Quellen & Disclaimer ===== */
    .yb-sources { margin-top: 2.6em; border-top: 1px solid var(--yb-line); padding-top: 1.2em; font-size: .92rem; color: var(--yb-muted); }
    .yb-sources h2 { font-size: 1.2rem; margin: .2em 0 .5em; }
    .yb-sources ul { margin: .4em 0 1.1em; padding-left: 1.2em; }
    .yb-sources li { margin-bottom: .45em; }
    .yb-sources a { color: var(--yb-brand-dark); }
    .yb-disclaimer {
      background: rgba(240,180,41,.14); border-left: 4px solid #f0b429; border-radius: 10px;
      padding: 12px 16px; color: var(--yb-ink); margin: 0;
    }

    /* ===== Hero-Bild ===== */
    .yb-hero-img {
      margin: 0 0 1.4em; border-radius: 18px; overflow: hidden;
      box-shadow: 0 18px 40px rgba(20,50,40,.16); border: 1px solid var(--yb-glass-border);
    }
    .yb-hero-img img { display: block; width: 100%; height: auto; max-height: 300px; object-fit: cover; }
    @media (max-width: 720px) { .yb-hero-img img { max-height: 180px; } }

    .yb-sources { font-size: .85rem; color: var(--yb-muted); margin-top: 2em; border-top: 1px solid var(--yb-line); padding-top: 1em; }
    .yb-sources a { color: var(--yb-brand-dark); }

    /* ===== Responsive / Above-the-fold ===== */
    @media (min-width: 721px) {
      .yb-result { position: sticky; top: 16px; align-self: start; }
    }
    @media (max-width: 720px) {
      .yb-calc { grid-template-columns: 1fr; gap: 14px; padding: 16px; }
      .yb-field { margin-bottom: 14px; }
      .yb-num input[type="number"] { font-size: 1.4rem; }
      .yb-result {
        order: -1; position: sticky; top: 0; z-index: 5;
        background: rgba(255,255,255,.65); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
        border-radius: 16px; padding: 10px 8px 12px; margin: -4px 0 6px;
        border: 1px solid var(--yb-glass-border);
      }
      .yb-result h2 { font-size: .95rem; color: var(--yb-muted); margin: 0; }
      .yb-gauge { max-width: 210px; }
      .yb-bmi-number { font-size: 2.4rem; }
      .yb-result-text { display: none; }
      .yb-promo { grid-template-columns: 1fr; }
      .yb-promo-figure { max-width: 260px; margin: 0 auto; }
      .yb-promo-figure img { max-height: 260px; }
    }

    @media (prefers-reduced-motion: reduce) {
      .yb-bmi::before, .yb-bmi::after { animation: none; }
      #yb-needle, .yb-bmi-label, .yb-gender label, .yb-btn { transition: none; }
    }