.breadcrumb-shell{max-width:1080px;margin:18px auto -6px;padding:0 4px;position:relative;z-index:5}.breadcrumb-shell ol{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.breadcrumb-shell li{display:flex;align-items:center;gap:8px;color:#8a9996;font-size:12px;font-weight:800}.breadcrumb-shell li:not(:last-child):after{content:"/";color:#b7c5c2}.breadcrumb-shell button,.breadcrumb-shell span{border:1px solid #dfe9e6;background:#ffffffd9;color:#52625f;border-radius:999px;padding:8px 12px;text-decoration:none;box-shadow:0 5px 14px #12383708}.breadcrumb-shell button{cursor:pointer;transition:transform .16s,border-color .16s,color .16s}.breadcrumb-shell button:hover{transform:translateY(-1px);border-color:#99e7d8;color:var(--teal);background:#fff}.breadcrumb-shell span[aria-current=page]{background:#ccfbf1;color:#0f766e;border-color:#99e7d8}[dir=rtl] .breadcrumb-shell ol{direction:rtl}[dir=rtl] .breadcrumb-shell li:not(:last-child):after{content:"\\"}.exercise-card{cursor:pointer;transition:transform .18s,box-shadow .18s,border-color .18s}.exercise-card:focus-visible,.exercise-card:hover{transform:translateY(-3px);box-shadow:0 18px 38px #0d948816;border-color:#bceee5;outline:none}.exercise-card footer button{transition:transform .18s,background .18s}.exercise-card:hover footer button{transform:translateX(2px);background:#ccfbf1}.exercise-detail-page{background:radial-gradient(circle at 15% 0,#ccfbf1 0,transparent 26%),var(--surface)}.exercise-detail-hero{max-width:1080px;margin:24px auto 0;border-radius:28px;color:#fff;padding:30px 42px 44px;position:relative;overflow:hidden}.exercise-detail-hero.teal{background:linear-gradient(135deg,var(--teal),var(--teal2))}.exercise-detail-hero.blue{background:linear-gradient(135deg,var(--blue),var(--blue2))}.exercise-detail-hero:after{content:"";position:absolute;width:280px;height:280px;border-radius:50%;right:-115px;top:-145px;border:1px solid #ffffff24;box-shadow:0 0 0 42px #ffffff09,0 0 0 86px #ffffff05}.exercise-detail-hero>*{position:relative;z-index:1}.exercise-detail-back{border:1px solid #ffffff45;background:#ffffff22;color:#fff;border-radius:999px;padding:9px 14px;display:inline-flex;align-items:center;gap:8px;font-weight:800;margin-bottom:28px}.exercise-detail-hero h1{font-size:44px;letter-spacing:-.05em;margin:9px 0 3px}.exercise-detail-hero p{margin:0;color:#ffffffd4}.exercise-detail-shell{max-width:1080px;margin:-26px auto 0;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);grid-gap:22px;gap:22px;align-items:start;position:relative;z-index:2}.exercise-detail-card,.exercise-video-card{background:#fff;border:1px solid #e3efec;border-radius:28px;box-shadow:0 24px 70px #12383712;overflow:hidden}.exercise-video-card{min-height:420px;background:#102a2a;display:grid;place-items:center}.exercise-video-card iframe,.exercise-video-card video{width:100%;height:420px;border:0;display:block;background:#102a2a}.exercise-video-placeholder{color:#ccfbf1;display:grid;justify-items:center;grid-gap:13px;gap:13px;font-weight:800}.exercise-video-placeholder svg{width:60px;height:60px}.exercise-detail-card{padding:28px}.exercise-detail-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:18px}.exercise-detail-meta span{display:inline-flex;align-items:center;gap:6px;background:#f0fdfa;color:#66736f;border-radius:999px;padding:8px 12px;font-size:12px;font-weight:800}.detail-difficulty.level-1{background:#dcfce7!important;color:#15803d!important}.detail-difficulty.level-2{background:#ffedd5!important;color:#c2410c!important}.detail-difficulty.level-3{background:#fee2e2!important;color:#b91c1c!important}.exercise-detail-card h2{font-size:32px;line-height:1.1;margin:0 0 6px}.exercise-detail-subtitle{color:var(--muted);font-weight:700;margin:0 0 18px}.exercise-detail-description{color:#53615e;line-height:1.85;white-space:pre-line;margin:0 0 22px}.exercise-detail-section{border-top:1px solid #edf3f1;padding-top:18px;margin-top:18px}.exercise-detail-section strong{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:#64748b;margin-bottom:10px}.exercise-detail-tags{display:flex;gap:8px;flex-wrap:wrap}.exercise-detail-tags span{border:1px solid #dfeae7;background:#f8fbfa;border-radius:999px;padding:7px 11px;font-size:12px;font-weight:800;color:#263633;text-transform:capitalize}.exercise-safety-note{display:flex;gap:10px;background:#e8faf7;color:#0f766e;border-radius:18px;padding:14px;margin:22px 0}.exercise-safety-note p{margin:0;color:#53615e;line-height:1.6}.complete-exercise-button{width:100%;border:0;border-radius:18px;background:linear-gradient(135deg,var(--teal),var(--teal2));color:#fff;padding:16px 18px;display:flex;align-items:center;justify-content:center;gap:9px;font-weight:900;font-size:15px;box-shadow:0 12px 30px #0d948826}.complete-exercise-button.done{background:#16a34a}@media(max-width:900px){.exercise-detail-hero,.exercise-detail-shell{margin-left:16px;margin-right:16px}.exercise-detail-shell{grid-template-columns:1fr}.exercise-video-card,.exercise-video-card iframe,.exercise-video-card video{min-height:300px;height:300px}}@media(max-width:560px){.exercise-detail-hero{padding:24px}.exercise-detail-hero h1{font-size:32px}.exercise-detail-card{padding:22px}.exercise-detail-card h2{font-size:27px}.exercise-video-card,.exercise-video-card iframe,.exercise-video-card video{min-height:240px;height:240px}}