.materials-page .site-main{padding-top:0;padding-bottom:3.5rem}.materials-hero{grid-template-columns:minmax(0,1.5fr) minmax(16rem,.65fr);align-items:center;gap:clamp(2rem,6vw,6rem);padding-block:clamp(3rem,7vw,5.5rem);display:grid}.materials-kicker{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;margin-bottom:.9rem;font-size:.72rem;font-weight:700}.materials-hero h1{max-width:17ch;margin-block:1.25rem;font-size:clamp(2.7rem,5.6vw,4.6rem)}.materials-intro{max-width:39rem;color:var(--text-secondary);margin:0;font-size:1rem}.materials-contents{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.materials-contents a{color:var(--accent);align-items:center;gap:1rem;padding:1.25rem;text-decoration:none;display:flex}.materials-contents a+a{border-top:1px solid var(--border)}.materials-contents a>span{flex:1;gap:.2rem;display:grid}.materials-contents strong{color:var(--text);font-size:.95rem;font-weight:600}.materials-contents a>span>span{color:var(--muted);font-size:.78rem}.materials-contents a:is(:hover,:focus-visible){background:color-mix(in srgb, var(--accent) 6%, var(--surface))}.materials-section{border-top:1px solid var(--border);padding-block:2rem 3rem;scroll-margin-top:1.5rem}.materials-section-heading{justify-content:space-between;align-items:flex-start;gap:1.25rem;display:flex}.materials-section-heading h2,.pdf-guide h2{margin-bottom:1rem;font-size:clamp(1.7rem,3.4vw,2.5rem)}.materials-section-heading p:last-child,.pdf-summary{max-width:46rem;color:var(--text-secondary);margin-bottom:.8rem;font-size:.95rem}.material-language{border:1px solid var(--border);border-radius:var(--radius-small);color:var(--accent);flex-shrink:0;padding:.35rem .65rem;font-size:.72rem}.material-description{max-width:48rem;color:var(--text-secondary);font-size:.87rem;line-height:1.8}.material-description p{margin-bottom:1rem}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;margin-top:1.5rem;display:grid}.video-lesson{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);min-width:0;overflow:hidden}.video-player{aspect-ratio:16/9;background:#0b0d11;width:100%;min-height:200px}.video-player iframe{border:0;width:100%;height:100%;min-height:200px;display:block}.video-lesson-caption{padding:1.15rem 1.25rem}.video-lesson-number{color:var(--accent);font:.7rem var(--font-mono);margin-bottom:.5rem}:lang(hy) .video-lesson-number{font-family:var(--font-sans)}.video-lesson h3{margin-bottom:.9rem;font-size:1rem;line-height:1.5}.video-lesson-caption a,.material-project-link{align-items:center;gap:.6rem;font-size:.78rem;font-weight:600;text-decoration:none;display:inline-flex}.video-lesson-caption a:is(:hover,:focus-visible),.material-project-link:is(:hover,:focus-visible){text-decoration:underline}.material-project-link{margin-top:1.4rem}.pdf-guide{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);grid-template-columns:minmax(10rem,.4fr) minmax(0,1.6fr);align-items:center;gap:clamp(1.5rem,4vw,3.5rem);padding:clamp(1.25rem,3.5vw,2.5rem);display:grid}.pdf-cover{border:1px solid color-mix(in srgb, var(--accent) 30%, var(--border));border-radius:var(--radius-small);min-height:16rem;color:var(--accent);background:linear-gradient(145deg, color-mix(in srgb, var(--accent) 10%, var(--surface)), var(--surface));flex-direction:column;justify-content:space-between;align-items:flex-start;gap:1.5rem;padding:1.8rem;display:flex}.pdf-cover>span:first-of-type{color:var(--text);font-size:2rem;font-weight:600}.pdf-cover>span:last-child{font:.75rem var(--font-mono)}.material-author{margin-bottom:.7rem;font-size:.87rem;font-weight:600}.material-meta{color:var(--muted);flex-wrap:wrap;gap:.4rem .8rem;margin:0 0 1.4rem;padding:0;font-size:.75rem;list-style:none;display:flex}.material-meta li+li{border-left:1px solid var(--border);padding-left:.8rem}.pdf-actions{flex-wrap:wrap;gap:.75rem;display:flex}.materials-more{color:var(--muted);margin:.5rem 0 0;font-size:.85rem}@media (width<=960px){.video-grid{grid-template-columns:1fr}}@media (width<=760px){.materials-hero{grid-template-columns:1fr;gap:2rem;padding-block:3rem}.materials-contents{width:100%;max-width:28rem}.materials-section-heading{flex-direction:column;gap:.35rem;margin-bottom:1rem}.pdf-guide{grid-template-columns:1fr}.pdf-cover{flex-direction:row;align-items:center;gap:1rem;min-height:0;padding:1.1rem}.pdf-cover>span:first-of-type{margin-right:auto;font-size:1.5rem}}@media (width<=400px){.materials-hero h1{font-size:2.35rem}.pdf-actions .button{width:100%}.pdf-cover>span:last-child{font-size:.65rem}}