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0}.sidebar-nav-item:hover{background:hsla(var(--p-hue),80%,50%,.05);color:var(--primary)}.sidebar-nav-item.active{background:var(--primary);color:white;box-shadow:0 8px 16px -4px hsla(var(--p-hue),80%,40%,.3)}.logout-card{display:flex;align-items:center;gap:1rem;padding:.875rem 1rem;width:100%;background:hsla(0,80%,50%,.05);color:var(--danger);border-radius:var(--radius-md);font-weight:700;transition:all .2s}.logout-card:hover{background:hsla(0,80%,50%,.1)}.main-viewport{height:100vh;overflow-y:auto;display:flex;flex-direction:column}.content-area{padding:0 2rem 2rem;max-width:1400px;margin:0 auto;width:100%}.loading-text{font-weight:700;color:var(--primary);animation:loadPulse 2s infinite}@keyframes 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h3{font-size:1.1rem;margin-bottom:.25rem;line-height:1.4}.dash-instructor{font-size:.85rem;color:var(--text-muted)}.dash-instructor,.progress-container{margin-bottom:1.5rem}.progress-header{display:flex;justify-content:space-between;font-size:.75rem;font-weight:700;margin-bottom:.5rem}.dash-progress-bar{height:6px;background:var(--surface-border);border-radius:99px;overflow:hidden}.dash-progress-fill{height:100%;background:var(--primary);border-radius:99px}.dash-loading-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));grid-gap:1.5rem;gap:1.5rem}.skeleton-card{height:380px;animation:loadPulse 2s infinite}.dash-course-footer{margin-top:0}.security-error-page{max-width:500px;margin:10vh auto;text-align:center;padding:3rem}.security-error-icon{font-size:4rem;margin-bottom:1.5rem}.security-reason-box{margin-top:2rem;background:hsla(0,84%,60%,.05);padding:1.5rem;border-radius:var(--radius-sm);text-align:left;color:var(--danger);border:1px solid hsla(0,84%,60%,.1)}.form-header{text-align:center;margin-bottom:2.5rem}.step-indicator{margin-top:1.5rem;gap:.5rem}.step-dot,.step-indicator{display:flex;align-items:center;justify-content:center}.step-dot{width:32px;height:32px;border-radius:50%;background:var(--surface-border);color:var(--text-muted);font-weight:700;font-size:.875rem;transition:all .3s ease}.step-dot.active{background:var(--primary);color:white;box-shadow:0 0 15px hsla(var(--p-hue),80%,50%,.3)}.step-line{width:40px;height:2px;background:var(--surface-border)}.form-step h3{margin-bottom:1.5rem;color:var(--primary);font-size:1.25rem}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:1.5rem;gap:1.5rem}.profile-header{position:relative;margin-bottom:5rem}.cover-wrap{height:180px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:var(--radius-md) var(--radius-md) 0 0}.cover-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(0,0,0,.2)}.cover-wrap:hover .cover-overlay{opacity:1}.profile-essentials{position:absolute;left:2rem;bottom:-4rem;display:flex;align-items:flex-end;gap:1.5rem}.avatar-wrap{position:relative}.profile-avatar{width:120px;height:120px;border-radius:50%;border:4px solid var(--surface-color);object-fit:cover;background:var(--surface-color)}.avatar-upload{position:absolute;bottom:0;right:0;background:var(--primary);color:white;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;border:2px solid white;transition:transform .2s}.avatar-upload:hover{transform:scale(1.1)}.profile-meta h1{font-size:1.75rem}.lock-banner,.profile-meta h1{display:flex;align-items:center;gap:.5rem}.lock-banner{background:hsla(25,90%,55%,.1);color:var(--secondary);padding:.75rem 1rem;border-radius:var(--radius-sm);border:1px solid hsla(25,90%,55%,.2);margin-bottom:2rem;font-size:.875rem}.read-only{background:hsla(var(--p-hue),20%,80%,.1);cursor:not-allowed;border:1px dashed var(--surface-border)}.upload-btn{background:rgba(255,255,255,.2);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:.5rem 1rem;border-radius:var(--radius-sm);color:white;font-weight:600;cursor:pointer;border:1px solid rgba(255,255,255,.3)}.form-actions{margin-top:2rem;border-top:1px solid var(--surface-border);padding-top:2rem;display:flex;justify-content:flex-end}.profile-page{max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:2rem;padding-top:1rem}.profile-container{padding:3rem}.blog-search-container{display:flex;flex-direction:column;gap:2.5rem}.blog-search-header{margin-bottom:2.5rem}.blog-search-flex{display:flex;gap:1rem;margin-top:1.5rem}.blog-results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));grid-gap:1.5rem;gap:1.5rem}.blog-result-item{padding:1.5rem}.player-container{padding:1.5rem;position:relative;overflow:hidden}.player-header{margin-bottom:1.5rem;display:flex;justify-content:space-between;align-items:flex-start}.drm-badge{background:rgba(16,185,129,.1);color:#10b981;padding:.25rem .75rem;border-radius:99px;font-size:.65rem;font-weight:800;display:flex;align-items:center;gap:.5rem;border:1px solid rgba(16,185,129,.2)}.drm-badge .dot{width:6px;height:6px;background:currentColor;border-radius:50%}.drm-badge .pulse{animation:playerPulse 2s infinite}@keyframes playerPulse{0%{opacity:.4}50%{opacity:1}to{opacity:.4}}.video-viewport{position:relative;padding-top:56.25%;background:#000;border-radius:var(--radius-sm);overflow:hidden;box-shadow:0 20px 50px -10px rgba(0,0,0,.5)}.yt-iframe{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.security-overlay{position:absolute;inset:0;z-index:50;cursor:not-allowed}.player-footer{margin-top:1rem;display:flex;justify-content:space-between;font-size:.65rem;color:var(--text-muted);opacity:.5}.drm-handshake{text-align:center;padding:4rem}.shield-loader{width:40px;height:40px;border:3px solid var(--primary);border-top:3px solid transparent;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 1.5rem}@keyframes spin{to{transform:rotate(1turn)}}.tiny{font-size:.7rem;opacity:.5;margin-top:.5rem}.reload-btn{margin-top:.75rem;border:none;border-radius:8px;padding:.55rem .9rem;background:#ef4444;color:#fff;cursor:pointer;font-weight:700}.trace-info{margin-top:1rem;font-size:.65rem;color:var(--text-muted);opacity:.6}.security-alert h3{color:var(--danger)}.logo-brand{font-size:1.5rem;font-weight:700;color:var(--text-main);letter-spacing:-.02em}.logo-brand small{font-size:.75rem;font-weight:400;color:var(--text-muted);margin-left:.2rem}.policy-container{max-width:800px;margin:4rem auto;padding:0 2rem}.policy-header{margin-bottom:3rem;text-align:center}.policy-header h1{font-size:2.5rem;margin-bottom:.5rem}.policy-content section{margin-bottom:2.5rem}.policy-content h2{font-size:1.5rem;margin-bottom:1rem;color:var(--text-main)}.policy-content p{color:var(--text-muted);line-height:1.6}@media (max-width:768px){.hero-h1{font-size:2.5rem}.footer-links{gap:1rem;text-align:center}.footer-links,.footer-top{flex-direction:column}}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:10000;display:flex;align-items:center;justify-content:center;padding:2rem}.course-modal-card{width:100%;max-width:900px;max-height:90vh;position:relative;background:var(--surface-color);border-radius:30px;overflow:hidden;padding:0;display:flex;flex-direction:column;box-shadow:var(--shadow-lg)}.modal-close-btn{position:absolute;top:1.5rem;right:1.5rem;width:40px;height:40px;border-radius:50%;background:rgba(0,0,0,.2);color:white;font-size:1.5rem;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:10;transition:background .2s;border:none}.modal-close-btn:hover{background:var(--danger)}.modal-scroll-area{overflow-y:auto;flex:1 1;padding:clamp(1.5rem,5vw,4rem)}.modal-header{display:grid;grid-template-columns:320px 1fr;grid-gap:2.5rem;gap:2.5rem;margin-bottom:3rem}.modal-thumb-wrap{position:relative;height:200px;border-radius:20px;overflow:hidden}.modal-thumb-wrap img{width:100%;height:100%;object-fit:cover}.modal-cat-badge{position:absolute;top:1rem;left:1rem;background:rgba(0,0,0,.7);color:white;padding:.4rem 1rem;border-radius:99px;font-size:.75rem;font-weight:800}.modal-title-wrap h2{font-size:2.5rem;line-height:1.1;margin-bottom:.5rem}.instructor{color:var(--text-muted);font-weight:600;margin-bottom:1.5rem}.modal-meta-row{display:flex;gap:2rem;font-weight:700;font-size:.9rem}.modal-content-grid{display:grid;grid-template-columns:1fr 300px;grid-gap:4rem;gap:4rem}.modal-section{margin-bottom:3rem}.modal-section h3{font-size:1.4rem;margin-bottom:1.5rem;color:var(--primary)}.modal-section p{line-height:1.7;color:var(--text-muted);font-size:1.05rem}.features-list,.modules-list{display:grid;grid-gap:1rem;gap:1rem;margin-bottom:2rem}.feature-item,.module-item{display:flex;gap:1rem;align-items:flex-start;font-weight:600;font-size:.95rem}.icon{flex-shrink:0}.pricing-box{padding:2.5rem;border-radius:24px;position:-webkit-sticky;position:sticky;top:0;background:var(--surface-color);border:1px solid var(--surface-border)}.price-label{font-size:.8rem;text-transform:uppercase;color:var(--text-muted)}.main-price,.price-label{font-weight:800;margin-bottom:.5rem}.main-price{font-size:2.5rem;color:var(--primary)}.payment-badge-modal{display:inline-block;background:hsla(var(--p-hue),80%,50%,.1);color:var(--primary);padding:.4rem 1rem;border-radius:8px;font-size:.75rem;font-weight:800;margin-bottom:2rem}.course-duration-info{display:flex;flex-direction:column;gap:.75rem;font-weight:700;font-size:.9rem;color:var(--text-muted)}@media (max-width:850px){.modal-content-grid,.modal-header{grid-template-columns:1fr}.pricing-box{position:static}}