/* UnityPro Course UI */
:root{--upc-border:#e6e7ea;--upc-muted:#6b7280;}
.up-course-layout{display:grid;grid-template-columns:minmax(0,280px) 1fr;gap:24px}
@media(max-width:980px){.up-course-layout{grid-template-columns:1fr}}
.up-sidebar{background:#fff;border:1px solid var(--upc-border);border-radius:14px;box-shadow:0 1px 2px rgba(0,0,0,.03);padding:16px;position:sticky;top:84px;height:fit-content}
.up-main{background:#fff;border:1px solid var(--upc-border);border-radius:14px;box-shadow:0 1px 2px rgba(0,0,0,.03);padding:0;overflow:hidden}
.up-head{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--upc-border)}
.up-bc{font-size:14px;color:var(--upc-muted)}
.up-toggle{margin-left:auto;display:flex;align-items:center;gap:8px}
.up-toggle input{appearance:none;width:38px;height:22px;border-radius:22px;border:1px solid var(--upc-border);position:relative;outline:0;background:#f3f4f6;cursor:pointer}
.up-toggle input:after{content:'';position:absolute;left:2px;top:2px;width:18px;height:18px;border-radius:50%;background:#fff;border:1px solid var(--upc-border);transition:left .2s}
.up-toggle input:checked{background:#10b981;border-color:#10b981}
.up-toggle input:checked:after{left:18px}
.up-progress{height:3px;background:#edf0f4;border-radius:99px;overflow:hidden;margin:0 18px}
.up-progress>span{display:block;height:100%;width:var(--pct,0%);background:#374151}
.up-in{padding:18px}
.up-hero img{display:block;width:100%;border-radius:10px}
.up-title{font-size:38px;line-height:1.15;margin:18px 0 10px}
.up-body{color:#111827;font-size:18px;line-height:1.75}
.up-mod{font-size:12px;letter-spacing:.08em;color:#111827;margin:16px 0 8px}
.up-list{display:flex;flex-direction:column;gap:4px}
.up-link{padding:9px 12px;border-radius:8px;color:#111827;text-decoration:none;display:flex;gap:8px}
.up-link:hover{background:#f5f6f8}
.up-link.active{background:#eef2ff;color:#1f2937}
.up-prevnext{display:flex;justify-content:space-between;align-items:center;padding:12px 0;margin-top:10px}


/* CTA Buttons */
.up-cta{margin:14px 0 10px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 18px;border-radius:999px;text-decoration:none;border:1px solid var(--upc-border)}
.btn-primary{background:#111827;color:#fff;border-color:#111827}
.btn-primary:hover{opacity:.92}