/* Vibe Learning course styles — intentionally scoped so they cannot override the main site. */
#courseApp{--vl-panel:#fff;--vl-soft:#f7f9fc;--vl-text:#1f2937;--vl-muted:#5f6b7a;--vl-blue:#1769e0;--vl-teal:#087f8c;--vl-green:#277a4b;--vl-line:#dce3eb;--vl-danger:#b4233b;box-sizing:border-box;width:100%;display:grid;grid-template-columns:260px minmax(0,1fr);min-height:700px;border:1px solid var(--vl-line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 10px 35px rgba(28,44,64,.06);color:var(--vl-text)}
#courseApp *,#courseApp *:before,#courseApp *:after{box-sizing:border-box}
#courseApp button,#courseApp input,#courseApp textarea,#courseApp select{font:inherit}
#courseApp .course-sidebar{border-right:1px solid var(--vl-line);padding:24px 16px;background:#f8fafc;min-width:0}
#courseApp .side-title{font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;color:var(--vl-blue);font-weight:800;margin:0 8px 12px}
#courseApp .lesson-link{display:flex;gap:9px;padding:10px;border-radius:9px;color:#4d5c6d;text-decoration:none;margin:3px 0;font-size:.94rem;line-height:1.4}
#courseApp .lesson-link:hover,#courseApp .lesson-link.active{background:#eaf2ff;color:#153e75}
#courseApp .lesson-link.done:before{content:'✓';color:var(--vl-green);font-weight:900}
#courseApp .lesson-link:not(.done):before{content:'○';color:#8492a4}
#courseApp .course-main{padding:38px 44px 64px;min-width:0;max-width:100%;background:#fff;color:var(--vl-text)}
#courseApp .course-main h1,#courseApp .course-main h2,#courseApp .course-main h3{color:#162233;font-family:inherit}
#courseApp .hero{padding:32px 0 24px;background:none;border:0;min-height:0}
#courseApp .eyebrow{color:var(--vl-blue);font-weight:800;text-transform:uppercase;letter-spacing:.13em;font-size:.78rem;margin:0 0 8px}
#courseApp .hero h1,#courseApp .lesson h1{font-size:clamp(2.15rem,5vw,4.1rem);line-height:1.02;margin:12px 0 18px;letter-spacing:-.04em}
#courseApp .hero h1 span{color:var(--vl-blue)}
#courseApp .lede{font-size:1.15rem;line-height:1.65;color:#526172;max-width:760px}
#courseApp .actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}
#courseApp .btn{border:0;border-radius:9px;background:var(--vl-blue);color:#fff!important;padding:11px 16px;font-weight:800;cursor:pointer;text-decoration:none;display:inline-block;line-height:1.4}
#courseApp .btn:hover{filter:brightness(.94);text-decoration:none}
#courseApp .btn.secondary{background:#eef4ff;color:#174f9d!important;border:1px solid #cbdcf5}
#courseApp .ghost{border:1px solid #cfd8e3;background:#fff;color:#314154!important;padding:9px 12px;border-radius:9px;cursor:pointer;text-decoration:none;line-height:1.4}
#courseApp .danger{color:var(--vl-danger)!important;margin:20px 8px;background:#fff}
#courseApp .grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:0}
#courseApp .card,#courseApp .exercise,#courseApp .tip,#courseApp .promptbox,#courseApp .reflection,#courseApp .quiz{background:#fff;border:1px solid var(--vl-line);border-radius:14px;padding:20px;box-shadow:0 4px 16px rgba(28,44,64,.035);color:var(--vl-text)}
#courseApp .card h3{margin-top:0}
#courseApp .metric{font-size:2rem;font-weight:900;color:var(--vl-blue)}
#courseApp .progressbar{height:10px;background:#e8edf3;border-radius:99px;overflow:hidden}
#courseApp .progressbar span{display:block;height:100%;background:linear-gradient(90deg,#1769e0,#14a0aa);width:0}
#courseApp .lesson-head{border-bottom:1px solid var(--vl-line);padding-bottom:22px}
#courseApp .lesson h2{font-size:1.55rem;margin-top:34px;margin-bottom:12px}
#courseApp .lesson h3{color:#26394e}
#courseApp .lesson p,#courseApp .lesson li{color:#3f4d5d;line-height:1.7}
#courseApp .objectives{border-left:4px solid var(--vl-blue);padding:10px 18px;background:#f4f8ff;color:#26384d}
#courseApp .tip{border-color:#b9ddc8;background:#f4fbf6}
#courseApp .tip strong{color:#236840}
#courseApp .promptbox{border-color:#c8d8ef;background:#f7faff}
#courseApp .promptbox strong{color:#174f9d}
#courseApp .promptbox pre{white-space:pre-wrap;overflow-wrap:anywhere;color:#243244;background:#fff;padding:14px;border:1px solid #dbe5f1;border-radius:9px;overflow:auto;font-size:.92rem}
#courseApp .exercise{margin:20px 0;border-color:#bcdfe3;background:#f8fcfc}
#courseApp .exercise label,#courseApp .reflection label{display:block;font-weight:700;margin:10px 0 6px;color:#243244}
#courseApp textarea,#courseApp input[type=text]{display:block;width:100%;max-width:100%;background:#fff;color:#172230;border:1px solid #bdc8d5;border-radius:8px;padding:12px;min-height:44px}
#courseApp textarea:focus,#courseApp input[type=text]:focus{outline:3px solid #d9e8ff;border-color:#1769e0}
#courseApp textarea{min-height:110px;resize:vertical}
#courseApp .save-note{font-size:.85rem;color:var(--vl-muted)}
#courseApp .choice{display:block;width:100%;text-align:left;color:#26384d;padding:10px 12px;margin:7px 0;background:#fff;border:1px solid #d6dee8;border-radius:9px;cursor:pointer}
#courseApp .choice:hover{background:#f7f9fc}
#courseApp .choice.correct{border-color:#7bc59a;background:#f0faf4}
#courseApp .choice.wrong{border-color:#e4a5af;background:#fff5f6}
#courseApp .feedback{margin-top:10px;font-weight:700;color:#344355}
#courseApp .lesson-actions{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:38px}
#courseApp .badge{display:inline-block;padding:5px 9px;border-radius:99px;background:#eaf2ff;color:#17549f;font-size:.8rem;font-weight:800}
#courseApp .lesson-visual{width:100%;max-width:100%;margin:24px 0 30px;overflow:hidden}
#courseApp .lesson-visual img,#courseApp .lesson img{display:block;width:100%;max-width:100%;height:auto;object-fit:contain;border-radius:14px;border:1px solid #e1e7ee}
#courseApp .course-mobile-bar{display:none}
@media(max-width:900px){#courseApp{display:block;border-radius:14px}#courseApp .course-mobile-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--vl-line);background:#fff}#courseApp .course-menu-btn{background:#fff;border:1px solid #cfd8e3;border-radius:8px;padding:7px 10px;color:#26384d}#courseApp .course-sidebar{display:none;border-right:0;border-bottom:1px solid var(--vl-line)}#courseApp.course-open .course-sidebar{display:block}#courseApp .course-main{padding:28px 20px 50px}#courseApp .grid{grid-template-columns:1fr}#courseApp .hero{padding-top:20px}}
@media(max-width:560px){#courseApp .course-main{padding:24px 16px 44px}#courseApp .hero h1,#courseApp .lesson h1{font-size:2.25rem}#courseApp .lesson-actions{flex-wrap:wrap}#courseApp .lesson-actions>*{flex:1 1 auto;text-align:center}#courseApp .lesson-visual img{border-radius:10px}}