:root{
      --ink:#181719;
      --muted:#62646a;
      --soft:#f5f2ee;
      --soft-2:#ebe5df;
      --line:#ded8d1;
      --red:#a61116;
      --red-dark:#7d0d12;
      --night:#171417;
      --paper:#fff;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,Arial,sans-serif;line-height:1.5}
    a{color:inherit}

    .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}
    }

    .study-page{overflow:hidden}
    .section{padding:78px 24px}
    .section__inner{max-width:1180px;margin:0 auto}
    .eyebrow{margin:0 0 14px;color:var(--red);font-size:13px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}
    .section-title{margin:0;font-size:clamp(34px,5vw,64px);line-height:1.04;letter-spacing:0}
    .section-lead{max-width:760px;margin:18px 0 0;color:#4d4e53;font-size:19px;line-height:1.58}
    .hero{padding:38px 24px 30px;background:linear-gradient(122deg,#171417 0%,#1d1a1f 58%,#2c1418 100%);color:#fff}
    .hero__inner{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.44fr);gap:36px;align-items:end}
    .breadcrumbs{display:flex;gap:10px;align-items:center;margin-bottom:26px;color:#e9c7c3;font-size:14px}
    .breadcrumbs a{text-decoration:none;color:#fff;font-weight:800}
    .hero h1{margin:0;font-size:clamp(42px,5.6vw,72px);line-height:.99;letter-spacing:0;max-width:900px}
    .hero__lead{max-width:780px;margin:20px 0 0;color:#e7dfdc;font-size:20px;line-height:1.52}
    .hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 18px;border-radius:6px;font-weight:900;text-decoration:none}
    .btn--primary{background:var(--red);color:#fff}
    .btn--ghost{border:1px solid rgba(255,255,255,.42);color:#fff}
    .hero-card{padding:24px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-left:5px solid var(--red);border-radius:8px}
    .hero-card h2{margin:0;font-size:26px;line-height:1.12}
    .hero-card p{margin:12px 0 0;color:#d9d1cd}
    .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:22px}
    .hero-stats div{min-height:82px;padding:14px;background:#242127;border-radius:6px}
    .hero-stats strong{display:block;font-size:32px;line-height:1;color:#fff}
    .hero-stats span{display:block;margin-top:8px;color:#d0c8c4;font-size:13px;line-height:1.35}
    .quick-nav{background:#fff;border-bottom:1px solid var(--line)}
    .quick-nav__inner{max-width:1180px;margin:0 auto;padding:14px 24px;display:flex;gap:10px;overflow:auto}
    .quick-nav a{display:inline-flex;align-items:center;min-height:38px;padding:0 13px;border:1px solid var(--line);border-radius:999px;color:#4e5056;text-decoration:none;font-weight:800;white-space:nowrap}
    .quick-nav a:hover{border-color:var(--red);color:var(--red)}
    .courses{background:var(--soft)}
    .course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:32px}
    .course-card{min-height:330px;padding:28px;background:#fff;border:1px solid var(--line);border-radius:8px;display:flex;flex-direction:column}
    .course-card span,.event-card__meta span{color:var(--red);font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}
    .course-card h3{margin:18px 0 0;font-size:26px;line-height:1.13}
    .course-card p{margin:16px 0 0;color:#55575d}
    .course-card a,.event-card a,.corporate-action{margin-top:auto;display:inline-flex;align-items:center;color:var(--red);font-weight:900;text-decoration:none}
    .lesson-wrap{display:grid;grid-template-columns:minmax(0,.42fr) minmax(0,1fr);gap:28px;margin-top:34px;align-items:start}
    .lesson-note{padding:28px;background:var(--night);color:#fff;border-radius:8px;position:sticky;top:94px}
    .lesson-note h3{margin:0;font-size:30px;line-height:1.1}
    .lesson-note p{margin:16px 0 0;color:#d9d1cd}
    .lesson-note a{display:inline-flex;align-items:center;justify-content:center;min-height:46px;margin-top:22px;padding:0 16px;background:var(--red);color:#fff;border-radius:6px;text-decoration:none;font-weight:900}
    .lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .lesson-card{min-height:120px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:8px;text-decoration:none;display:grid;grid-template-columns:46px minmax(0,1fr);gap:16px;align-items:start}
    .lesson-card span{display:flex;align-items:center;justify-content:center;width:46px;height:46px;background:var(--night);border-radius:6px;color:#fff;font-weight:900}
    .lesson-card strong{font-size:19px;line-height:1.22}
    .lesson-card:hover{border-color:var(--red)}
    .events{background:var(--soft)}
    .event-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:32px}
    .event-card{min-height:340px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:8px;display:flex;flex-direction:column}
    .event-card__meta{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
    .event-card__meta small{color:#76787e;font-size:12px;text-align:right}
    .event-card h3{margin:20px 0 0;font-size:23px;line-height:1.15}
    .event-card p{margin:14px 0 0;color:#55575d;font-size:15px}
    .corporate{background:#fff}
    .corporate-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(320px,.52fr);gap:22px;margin-top:34px}
    .corporate-panel{padding:34px;background:var(--soft);border:1px solid var(--line);border-radius:8px}
    .corporate-panel h3{margin:0;font-size:32px;line-height:1.1}
    .corporate-panel ul{margin:22px 0 0;padding:0;list-style:none;display:grid;gap:12px}
    .corporate-panel li{padding-left:28px;position:relative;color:#44464c;font-size:18px}
    .corporate-panel li::before{content:"";position:absolute;left:0;top:.65em;width:13px;height:2px;background:var(--red)}
    .contact-card{padding:30px;background:var(--night);color:#fff;border-radius:8px}
    .contact-card h3{margin:0;font-size:30px;line-height:1.08}
    .contact-card p{margin:16px 0 0;color:#d9d1cd}
    .contact-lines{display:grid;gap:10px;margin-top:22px}
    .contact-lines a{color:#fff;text-decoration:none;font-weight:900}
    .contact-lines a:first-child{display:flex;align-items:center;justify-content:center;min-height:46px;background:var(--red);border-radius:6px}
    .source-note{margin:22px 0 0;color:#8a817c;font-size:13px}
    @media (max-width:1080px){
      .hero__inner,.lesson-wrap,.corporate-grid{grid-template-columns:1fr}
      .course-grid{grid-template-columns:1fr 1fr}
      .event-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .lesson-note{position:static}
    }
    @media (max-width:720px){
      .section{padding:54px 18px}
      .hero{padding:42px 18px 48px}
      .hero h1{font-size:42px;line-height:1.04}
      .hero__lead,.section-lead{font-size:18px}
      .breadcrumbs{margin-bottom:34px}
      .hero__actions{flex-direction:column}
      .btn{width:100%}
      .hero-stats,.course-grid,.lesson-grid,.event-grid{grid-template-columns:1fr}
      .quick-nav__inner{padding:12px 18px}
      .course-card,.event-card{min-height:0}
      .lesson-card{min-height:0}
      .corporate-panel,.contact-card{padding:24px}
    }