:root{--ink:#171719;--muted:#6e6a66;--red:#a61116;--bg:#f6f3ef;--paper:#fff;--line:#ded8d1;--dark:#171417}
    *{box-sizing:border-box}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,Manrope,Arial,sans-serif;line-height:1.55}
    a{color:var(--red)}
    .page{min-height:100vh}
    .reference-hero{background:#171417;color:#fff;padding:64px 24px 72px}
    .reference-hero__inner{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:42px;align-items:end}
    .breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px;color:#f0c5bd;font-size:14px}
    .breadcrumbs a{color:#f0c5bd;text-decoration:none}
    .eyebrow{margin:0 0 18px;color:#ffcdc5;font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.12em}
    h1,.hero-title{margin:0;font-size:clamp(38px,5vw,74px);line-height:1.02;letter-spacing:0;font-weight:800}
    .hero-title--split span{display:block}
    .hero-title--split span+span{margin-top:10px;max-width:920px;font-size:clamp(28px,3.4vw,50px);line-height:1.08}
    .lead{margin:24px 0 0;max-width:760px;color:#e6dfdc;font-size:clamp(18px,2.1vw,24px)}
    .hero-card{border-left:4px solid var(--red);background:#252228;padding:24px}
    .hero-card strong{display:block;font-size:42px;line-height:1}
    .hero-card span{display:block;margin-top:8px;color:#ded8d1}
    .layout{max-width:1180px;margin:0 auto;padding:42px 24px 76px;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start}
    .content-card{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:34px}
    .content-card h2,.content-card h3{line-height:1.15;margin:30px 0 14px}
    .content-card h2:first-child,.content-card h3:first-child{margin-top:0}
    .content-card p{margin:0 0 16px}
    .reference-body{font-size:18px}
    .reference-body strong{color:#111;font-weight:850}
    .reference-body ul,.reference-body ol{padding-left:24px;margin:12px 0 18px}
    .reference-body li{margin:8px 0}
    .mktu-class-ref{font-weight:850;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
    .mktu-source-table{margin:22px 0 0}
    .mktu-source-table__scroll{overflow:auto;border:1px solid var(--line);border-radius:8px;background:#fff}
    .mktu-source-table table{width:100%;border-collapse:collapse;min-width:720px}
    .mktu-source-table th,.mktu-source-table td{padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
    .mktu-source-table th{background:#f1ebe6;color:#171417;font-size:14px;font-weight:850}
    .mktu-source-table td{font-size:15px}
    .mktu-source-table tr:last-child td{border-bottom:0}
    .class-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:24px}
    .class-card{display:grid;gap:7px;min-height:110px;padding:16px;border:1px solid var(--line);border-radius:8px;background:#fff;text-decoration:none;color:var(--ink)}
    .class-card:hover{border-color:var(--red);box-shadow:0 10px 24px rgba(40,28,24,.08)}
    .class-card[aria-current="page"]{background:#171417;color:#fff;border-color:#171417}
    .class-card strong{font-size:18px;color:inherit}
    .class-card span{color:var(--muted);font-size:14px}
    .class-card[aria-current="page"] span{color:#d8d0cc}
    .side{position:sticky;top:92px;display:grid;gap:18px}
    .side-box{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px}
    .side-box h2{margin:0 0 12px;font-size:18px}
    .side-nav{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
    .side-nav a{display:flex;align-items:center;justify-content:center;min-height:38px;border:1px solid var(--line);border-radius:6px;color:var(--ink);text-decoration:none;font-weight:800}
    .side-nav a[aria-current="page"]{background:var(--red);border-color:var(--red);color:#fff}
    .pager{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
    .pager a{display:inline-flex;align-items:center;min-height:42px;padding:0 14px;border:1px solid var(--line);border-radius:6px;background:#fff;text-decoration:none;color:var(--ink);font-weight:800}
    .cta{margin-top:28px;background:#171417;color:#fff;border-radius:8px;padding:28px}
    .cta h2{margin:0 0 10px;font-size:28px}
    .cta p{margin:0;color:#ddd4cf}
    .lead-form{display:grid;gap:14px;margin-top:20px}
    .lead-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .lead-form label{display:grid;gap:6px;color:#f1ece7;font-size:13px;font-weight:700}
    .lead-form input,.lead-form textarea{width:100%;border:1px solid rgba(255,255,255,.18);border-radius:6px;background:#fff;color:#171719;padding:12px 13px;font:inherit;line-height:1.35}
    .lead-form textarea{resize:vertical;min-height:92px}
    .lead-form button{justify-self:start;border:0;background:var(--red);color:#fff;border-radius:6px;padding:12px 16px;font:inherit;font-weight:800;cursor:pointer}
    .lead-form-status{min-height:22px;margin:0;color:#e5e2dc;font-size:14px}
    .search-note{border-left:4px solid var(--red);background:#f1ebe6;padding:18px 20px;border-radius:6px;margin-top:22px}
    .mktu-teaser{margin:0 0 24px;padding:24px;border:1px solid var(--line);border-radius:8px;background:#f8f5f1;display:flex;gap:20px;align-items:center;justify-content:space-between}
    .mktu-teaser h2{margin:0 0 8px;font-size:26px}
    .mktu-teaser p{margin:0;max-width:720px;color:#554f4b}
    .mktu-teaser a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:6px;background:var(--red);color:#fff;text-decoration:none;font-weight:800;white-space:nowrap}
    .mktu-navigator{display:grid;gap:16px}
    .mktu-navigator__intro h2{margin:0;font-size:clamp(28px,3vw,42px);line-height:1.08;max-width:820px}
    .mktu-navigator__intro p:not(.eyebrow-light){max-width:760px;margin:10px 0 0;color:#554f4b;font-size:16px}
    .eyebrow-light{margin:0 0 8px;color:var(--red);font-size:12px;font-weight:850;letter-spacing:.12em;text-transform:uppercase}
    .mktu-search-panel{display:grid;gap:8px}
    .mktu-search-panel label{font-weight:850}
    .mktu-search-panel input{width:100%;min-height:50px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:0 16px;font:inherit;font-size:17px;color:var(--ink);outline:none}
    .mktu-search-panel input:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(166,17,22,.12)}
    .mktu-state-row,.mktu-chip-row,.class-tag-links__chips{display:flex;flex-wrap:wrap;gap:9px;align-items:center}
    .mktu-state-row{min-height:34px;color:#6a625e;font-size:14px}
    .mktu-chip,.class-tag-links__chips a{border:1px solid var(--line);border-radius:999px;background:#fff;color:#312c2a;min-height:32px;padding:0 10px;font:inherit;font-size:13px;font-weight:750;cursor:pointer;text-decoration:none}
    .mktu-chip:hover,.class-tag-links__chips a:hover{border-color:var(--red);color:var(--red)}
    .mktu-chip.is-active{background:#171417;border-color:#171417;color:#fff}
    .mktu-tag-section{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .mktu-tag-section.is-focused{grid-template-columns:1fr}
    .mktu-tag-group[hidden]{display:none}
    .mktu-tag-group.is-wide{grid-column:1/-1}
    .mktu-tag-section h3,.mktu-results-head h3{margin:0 0 8px;font-size:17px}
    .mktu-more{margin-top:10px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--red);min-height:32px;padding:0 10px;font:inherit;font-size:13px;font-weight:850;cursor:pointer}
    .mktu-results-head{display:flex;justify-content:space-between;gap:16px;align-items:end;border-top:1px solid var(--line);padding-top:16px}
    .mktu-results-head span{color:#6a625e}
    .mktu-result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .mktu-result-card{position:relative;border:1px solid var(--line);border-radius:8px;background:#fff;padding:16px;display:grid;gap:10px;cursor:pointer}
    .mktu-result-card:hover{border-color:#c6b8ad;box-shadow:0 10px 24px rgba(40,28,24,.06)}
    .mktu-result-card:focus-visible{outline:3px solid rgba(166,17,22,.18);outline-offset:2px}
    .mktu-result-card.is-selected{border-color:var(--red);box-shadow:0 10px 28px rgba(166,17,22,.09)}
    .mktu-result-code{position:absolute;top:14px;right:14px;display:flex;align-items:center;justify-content:center;width:40px;height:34px;border-radius:8px;background:#171417;color:#fff;font-size:18px;line-height:1}
    .mktu-result-card__top{padding-right:50px}
    .mktu-result-card h4{margin:0;font-size:18px;line-height:1.15}
    .mktu-result-card p{margin:6px 0 0;color:#5d5652;font-size:14px;line-height:1.45}
    .mktu-result-tags{display:flex;flex-wrap:wrap;gap:6px}
    .mktu-result-tags span{border-radius:999px;background:#f1ebe6;color:#7d1216;padding:4px 8px;font-size:12px;font-weight:800}
    .mktu-result-reasons ul{margin:0;padding-left:18px;color:#312c2a;font-size:13px}
    .mktu-result-reasons li{margin:3px 0}
    .mktu-result-actions{display:flex;gap:8px;align-items:center;margin-top:2px}
    .mktu-result-actions a,.mktu-result-actions button{display:inline-flex;align-items:center;justify-content:center;min-height:34px;border-radius:6px;font:inherit;font-size:13px;font-weight:850;text-decoration:none}
    .mktu-result-cta{padding:0 12px;border:0;background:var(--red);color:#fff;cursor:pointer}
    .mktu-icon-action{width:34px;padding:0;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
    .mktu-icon-action:hover{border-color:var(--red);color:var(--red)}
    .mktu-selected-empty{margin:0;color:#6a625e;font-size:14px}
    .mktu-selected-classes{display:grid;gap:8px}
    .mktu-selected-class{width:100%;display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);padding:10px;text-align:left;font:inherit;cursor:pointer}
    .mktu-selected-class:hover{border-color:var(--red)}
    .mktu-selected-class strong{display:flex;align-items:center;justify-content:center;width:34px;height:30px;border-radius:7px;background:#171417;color:#fff;font-size:15px;line-height:1}
    .mktu-selected-class span{font-size:13px;font-weight:800;line-height:1.25}
    .mktu-selected-class em{font-style:normal;color:#8b837e;font-size:12px}
    .mktu-registration-cta{display:flex;align-items:center;justify-content:center;min-height:42px;margin-top:14px;border-radius:6px;background:var(--red);color:#fff;text-decoration:none;font-weight:850}
    .mktu-registration-cta[hidden]{display:none}
    .mktu-empty{border:1px dashed var(--line);border-radius:8px;padding:20px;background:#f8f5f1}
    .class-tag-links{margin-top:28px;border-top:1px solid var(--line);padding-top:24px;display:grid;gap:16px}
    .class-tag-links h2{margin:0 0 8px;font-size:24px}
    .class-tag-links p{margin:0;color:#5d5652}

    .shell-topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line,#ded8d1)}
    .shell-topbar__inner{max-width:1180px;margin:0 auto;min-height:72px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .shell-brand{display:inline-flex;align-items:center;gap:9px;color:var(--ink,#171719);font-weight:900;letter-spacing:.08em;text-transform:uppercase;font-size:15px;text-decoration:none;white-space:nowrap}
    .shell-brand::before{content:"";display:block;width:22px;height:22px;background:linear-gradient(135deg,var(--red,#a61116) 0 49%,transparent 50%),#171417;border-radius:4px}
    .shell-nav{display:flex;align-items:center;gap:18px;min-width:0;color:#4d4e52;font-size:14px}
    .shell-nav a{display:inline-flex;align-items:center;color:inherit;text-decoration:none;white-space:nowrap}
    .shell-nav a[aria-current="page"]{color:var(--red,#a61116);font-weight:800}
    .shell-action{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 13px;border-radius:6px;background:var(--red,#a61116);color:#fff!important;font-weight:800}
    .shell-footer{background:#161417;color:#fff;padding:52px 24px}
    .shell-footer__inner{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.25fr repeat(4,minmax(0,1fr));gap:32px}
    .shell-footer__brand strong{display:block;font-size:18px;text-transform:uppercase;letter-spacing:.08em}
    .shell-footer__brand p,.shell-footer__cta p{margin:12px 0 0;color:#cfc8c5;font-size:14px;line-height:1.55}
    .shell-footer h3{margin:0 0 12px;color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.08em}
    .shell-footer a{display:block;color:#d9d4d0;text-decoration:none;font-size:14px;line-height:1.35;margin-bottom:9px}
    .shell-footer a:hover{color:#fff}
    .shell-footer__cta a{display:inline-flex;margin-top:14px;margin-bottom:0;padding:10px 13px;border-radius:6px;background:var(--red,#a61116);color:#fff;font-weight:800}
    @media (max-width:920px){
      .shell-topbar{position:static}
      .shell-topbar__inner{min-height:0;padding:16px 18px;align-items:flex-start;flex-direction:column}
      .shell-nav{width:100%;flex-wrap:wrap;gap:12px}
      .shell-action{width:100%;max-width:320px}
      .shell-footer__inner{grid-template-columns:1fr;gap:24px}
    }

    @media (max-width:980px){
      .reference-hero__inner,.layout{grid-template-columns:1fr}
      .side{position:static}
      .class-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .mktu-tag-section,.mktu-result-grid{grid-template-columns:1fr}
      .mktu-teaser{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:620px){
      .reference-hero{padding:42px 18px 54px}
      .layout{padding:28px 14px 58px}
      .content-card{padding:22px}
      .class-grid{grid-template-columns:1fr}
      .lead-form-grid{grid-template-columns:1fr}
      .side-nav{grid-template-columns:repeat(3,1fr)}
    }