*{box-sizing:border-box}body{margin:0;background:#f6f8fc;color:#172a46;font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}header{background:#fff;border-bottom:1px solid #dce4ef;padding:20px 24px}.header{max-width:1120px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:30px;font-weight:850;letter-spacing:-1.5px;color:#1556d3;text-decoration:none;direction:ltr}.brand span{color:#167462}a{color:#1556d3}.back{font-size:14px}main{max-width:1168px;margin:0 auto;padding:54px 24px 50px}.intro{max-width:760px}.eyebrow{color:#1556d3;font-size:12px;font-weight:750;letter-spacing:1.4px;margin:0 0 12px}h1{font-size:46px;line-height:1.16;letter-spacing:-1.5px;margin:0 0 22px}h2{font-size:18px;margin:0 0 7px;line-height:1.5}.lead{font-size:19px;color:#53647b;margin:0 0 28px;max-width:700px}.usage{border:1px solid #cce0d7;background:#edf7f1;border-radius:16px;padding:19px 24px;margin:0 0 32px}.usage h2{color:#236548}.usage p{color:#3f5c50;margin:0;font-size:14px}.library-bar{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:20px}.filters{display:flex;gap:7px;flex-wrap:wrap}.filters button{border:1px solid #cfdaeb;background:#fff;color:#344962;border-radius:9px;padding:10px 17px;font:600 14px/1.5 system-ui;cursor:pointer}.filters button[aria-pressed=true]{background:#1556d3;color:#fff;border-color:#1556d3}#count{margin:0;color:#61718a;font-size:13px}.library{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.material{min-width:0;background:#fff;border:1px solid #dce4ef;border-radius:16px;overflow:hidden}.thumbnail{position:relative;display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:4/3;border:0;background:#edf2f9;cursor:pointer;color:#1556d3;overflow:hidden}.thumbnail img{width:100%;height:100%;object-fit:contain}.play{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:#fff;box-shadow:0 5px 22px #172a4614;font-size:24px;direction:ltr}.video-poster+.play{position:absolute}.material-info{padding:19px}.material h2{font-size:17px;overflow-wrap:anywhere}.material p{font-size:13px;color:#61718a;margin:5px 0 16px}.card-actions{display:flex;gap:9px;flex-wrap:wrap}.download,.preview-button{display:inline-flex;justify-content:center;align-items:center;text-decoration:none;min-height:42px;padding:9px 14px;border:1px solid #c9d6e7;border-radius:8px;font:600 14px/1.5 system-ui;cursor:pointer}.download{gap:8px;background:#1556d3;color:#fff;border-color:#1556d3}.preview-button{background:#fff;color:#344962}.empty{grid-column:1/-1;border:1px dashed #b9c9dd;border-radius:16px;padding:45px 24px;text-align:center;background:#fff}.empty p{color:#53647b;margin:8px auto 0;max-width:520px}.footnote{font-size:13px;color:#61718a;margin:28px 0 0}dialog{border:0;border-radius:18px;padding:22px;max-width:850px;width:calc(100% - 32px);max-height:90dvh;box-shadow:0 15px 80px #172a4633}dialog::backdrop{background:#0d203bbb}.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}#close-preview{border:1px solid #c9d6e7;border-radius:8px;background:white;padding:8px 13px;font:600 14px system-ui;cursor:pointer}#preview-media{display:flex;align-items:center;justify-content:center;background:#f2f5fa;border-radius:10px;min-height:140px}#preview-media img,#preview-media video{display:block;max-width:100%;max-height:60dvh;object-fit:contain}#preview-footer{margin-top:17px;display:flex;gap:14px;align-items:center;flex-wrap:wrap}#preview-footer p{font-size:13px;color:#53647b;margin:0}button:focus-visible,a:focus-visible{outline:3px solid #8eb5ee;outline-offset:3px}html[lang=ar] h1{letter-spacing:0;line-height:1.4}html[lang=ar] .eyebrow{letter-spacing:0}html[lang=ar] .preview-button,html[lang=ar] .download{font-family:inherit}@media(max-width:850px){.library{grid-template-columns:repeat(2,minmax(0,1fr))}h1{font-size:39px}}@media(max-width:540px){main{padding:30px 17px 40px}.library{grid-template-columns:1fr;gap:17px}h1{font-size:32px}.lead{font-size:17px}.library-bar{align-items:flex-start;flex-direction:column;gap:12px}.usage{padding:17px}.filters button{padding:9px 14px}.header{gap:12px}.footnote{line-height:1.7}dialog{padding:17px}.card-actions>*{flex:1}}