:root{--ink:#25362f;--muted:#738078;--line:#e5e9e5;--green:#24543f}*{box-sizing:border-box}body{color:var(--ink);background:#fafbf9;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px}button,input,select{font:inherit;color:inherit}button,a{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline-offset:3px;outline:3px solid #86ad97}h1,h2,p{margin:0}.site-header{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;gap:20px;min-height:76px;padding:18px max(24px,50vw - 580px);display:flex}.brand{align-items:center;gap:12px;font-size:18px;font-weight:650;display:flex}.brand img{object-fit:contain;display:block}.brand strong{color:var(--muted);margin-left:4px;font-weight:400}.signout{color:var(--muted);background:0 0;border:0;padding:8px 0;font-size:13px}.library{max-width:1208px;margin:auto;padding:42px 24px 60px}.library-heading{align-items:center;gap:12px;margin-bottom:22px;display:flex}h1{letter-spacing:-.8px;font-size:27px;font-weight:650}.library-heading>span{color:var(--muted);font-size:12px}.filters{gap:12px;margin-bottom:26px;display:flex}.filters input,.filters select{background:#fff;border:1px solid #dce2dc;border-radius:7px;min-width:0;padding:12px 14px;font-size:13px}.filters input{flex:1}.filters select{width:240px}.filters input::placeholder{color:#949d95}.video-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));align-items:start;gap:24px;display:grid}.video-card{border:1px solid var(--line);background:#fff;border-radius:10px;max-width:420px;overflow:hidden}.card-preview{aspect-ratio:4/3;border:0;border-bottom:1px solid var(--line);background:#f5f7f3;width:100%;padding:0;display:block;position:relative}.card-preview img{object-fit:contain;width:100%;height:100%;display:block}.duration{color:#fff;background:#182d22d9;border-radius:4px;padding:4px 7px;font-size:11px;position:absolute;bottom:12px;right:12px}.card-play{color:#fff;background:#224d3ad9;border-radius:50%;place-items:center;width:42px;height:42px;font-size:14px;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.card-body{padding:19px}.card-course{color:var(--muted);font-size:11px;line-height:1.6}.card-body h2{letter-spacing:-.2px;margin:8px 0;font-size:18px;line-height:1.5}.card-body h2 button{text-align:left;font-size:inherit;font-weight:600;line-height:inherit;background:0 0;border:0;padding:0}.card-meta{color:var(--muted);font-size:11px;line-height:1.7}.platforms{flex-wrap:wrap;align-items:center;gap:6px;margin:18px 0;font-size:11px;display:flex}.platforms>span{color:var(--muted);margin-right:3px}.platforms strong{color:#4a6851;background:#f0f4ed;border-radius:4px;padding:5px 8px;font-size:11px;font-weight:500}.card-actions{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:10px;padding-top:16px;display:flex}.card-actions button{background:0 0;border:0;padding:7px 0;font-size:12px}.card-actions a{background:var(--green);color:#fff;border-radius:5px;padding:9px 12px;font-size:12px}.empty-state{text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:8px;padding:65px 20px}.empty-state a{color:var(--green);margin-top:15px;text-decoration:underline;display:inline-block}.modal-backdrop{z-index:20;background:#17271f99;justify-content:center;align-items:flex-start;padding:32px 20px;display:flex;position:fixed;inset:0;overflow-y:auto}.detail-modal{background:#fff;border-radius:12px;width:1040px;max-width:100%;overflow:hidden;box-shadow:0 20px 80px #14271f33}.detail-top{border-bottom:1px solid var(--line);color:var(--muted);justify-content:space-between;align-items:center;gap:20px;padding:16px 24px;font-size:12px;display:flex}.close-button{background:#f3f5f1;border:0;border-radius:50%;flex-shrink:0;width:32px;height:32px;font-size:23px;line-height:1}.detail-grid{grid-template-columns:1.12fr 1fr;gap:30px;padding:26px;display:grid}.detail-preview video,.poster-button{width:100%;aspect-ratio:var(--media-aspect,1);object-fit:contain;border:1px solid var(--line);background:#f5f7f3;border-radius:7px;max-height:70vh;display:block;overflow:hidden}.poster-button{padding:0;position:relative}.poster-button img{object-fit:contain;width:100%;height:100%;display:block}.play-circle{color:#fff;background:#224d3ae8;border-radius:50%;place-items:center;width:58px;height:58px;font-size:20px;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.preview-meta{color:var(--muted);margin-top:12px;font-size:11px;line-height:1.7}.detail-content h2{letter-spacing:-.5px;margin:0 0 18px;font-size:23px;line-height:1.45}.detail-content .platforms{margin:0 0 24px}.primary-button,.secondary-button{border-radius:6px;justify-content:center;align-items:center;gap:10px;width:100%;padding:13px 16px;font-size:13px;display:flex}.primary-button{background:var(--green);color:#fff;border:1px solid var(--green)}.primary-button span{margin-left:auto}.secondary-button{background:#fff;border:1px solid #dce2dc;margin-top:10px}.extra-links{color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:14px;margin:17px 0 25px;font-size:11px;display:flex}.extra-links a:hover{text-decoration:underline}details{border-top:1px solid var(--line)}summary{cursor:pointer;color:#53685b;padding:16px 0;font-size:12px}.caption{white-space:pre-wrap;overflow-wrap:anywhere;color:#67776b;padding-bottom:20px;font-size:12px;line-height:1.8}.description{color:var(--muted);margin-bottom:16px;font-size:12px;line-height:1.8}.posting-list{margin:0 0 15px}.posting-row{text-align:left;background:#f7f9f5;border:0;border-radius:5px;align-items:center;gap:9px;width:100%;padding:12px;font-size:12px;display:flex}.posting-row+.posting-row{margin-top:5px}.posting-row small{color:var(--muted);margin-left:auto;font-size:10px}.checkbox{border:1px solid #bfcbbc;border-radius:4px;place-items:center;width:17px;height:17px;font-size:12px;display:grid}.checkbox.checked{background:var(--green);color:#fff;border-color:var(--green)}.part-navigation{justify-content:space-between;align-items:center;gap:8px;margin-top:16px;font-size:11px;display:flex}.part-navigation button{border:1px solid var(--line);background:#fff;border-radius:5px;padding:8px 10px;font-size:11px}.error{color:#ab4135;margin-top:16px;font-size:12px;line-height:1.7}.login-page{place-items:center;min-height:100vh;padding:30px 20px;display:grid}.login-card{border:1px solid var(--line);text-align:center;background:#fff;border-radius:12px;width:100%;max-width:400px;padding:42px 30px}.login-brand{justify-content:center;align-items:center;gap:10px;margin-bottom:28px;font-size:17px;font-weight:650;display:flex}.login-brand img{object-fit:contain}.login-card h1{letter-spacing:-.5px;margin-bottom:12px;font-size:24px}.login-card>p{color:var(--muted);font-size:13px;line-height:1.8}.google-button{background:#fff;border:1px solid #dce2dc;border-radius:6px;justify-content:center;align-items:center;gap:12px;width:100%;margin:28px 0 20px;padding:14px;font-size:13px;display:flex}.google-button:hover{background:#f7f9f5}.google-button svg{flex-shrink:0}.login-footnote{color:#939d95;font-size:10px}@media (max-width:700px){.site-header{min-height:66px;padding:16px 20px}.brand{gap:9px;font-size:16px}.brand img{width:29px;height:29px}.library{padding:28px 18px 45px}.library-heading{margin-bottom:18px}h1{font-size:24px}.filters{flex-wrap:wrap;gap:9px}.filters input{flex-basis:100%}.filters select{width:100%}.video-grid{grid-template-columns:1fr;gap:20px}.video-card{max-width:none}.modal-backdrop{padding:10px}.detail-top{gap:10px;padding:13px 16px;font-size:11px;line-height:1.7}.detail-grid{grid-template-columns:1fr;gap:24px;padding:17px}.detail-content h2{font-size:21px}.detail-content .platforms{margin-bottom:20px}.login-card{padding:34px 24px}}.header-links{color:var(--muted);align-items:center;gap:22px;font-size:13px;display:flex}.back-link{color:var(--muted);font-size:13px}.connections-page{max-width:720px;margin:auto;padding:38px 20px 60px}.connections-page h1{margin-bottom:25px}.connection-panel{border:1px solid var(--line);background:#fff;border-radius:9px;margin:18px 0;padding:23px}.connection-panel h2{margin-bottom:18px;font-size:17px}.connection-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:15px;padding:13px 0;font-size:13px;display:flex}.connection-row strong{text-align:right;font-size:12px;font-weight:500}.connected{color:#237143}.connection-note{color:var(--muted);margin:10px 0;font-size:12px;line-height:1.7}.connection-panel .primary-button{margin-top:20px}.device-login{padding:20px 0 0;font-size:13px;line-height:1.7}.device-login code{letter-spacing:3px;margin:12px 0;font-size:24px;display:block}.device-login a{color:var(--green);text-decoration:underline}.device-login p:last-child{color:var(--muted);margin-top:10px;font-size:11px}@media (max-width:700px){.header-links{gap:14px;font-size:12px}.header-links .signout{font-size:12px}.connection-panel{padding:18px}}