.hero-bg{border-radius:var(--r);color:#000;background:linear-gradient(135deg,#0f172a 0%,#1e3a8a 55%,#1d4ed8 100%);margin-bottom:0;padding:72px 56px;position:relative;overflow:hidden}.hero-bg:before{content:"";background:radial-gradient(circle,#ffffff0f 0%,#0000 70%);border-radius:50%;width:500px;height:500px;position:absolute;top:-150px;right:-100px}.hero-bg:after{content:"";background:radial-gradient(circle,#d9770626 0%,#0000 70%);border-radius:50%;width:300px;height:300px;position:absolute;bottom:-80px;left:40px}.hero-bg .hero-title{color:#fff}.hero-bg .hero-title span{background:linear-gradient(90deg,#fbbf24,#f59e0b);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.features-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;display:grid}.feat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);padding:28px 22px;transition:transform .2s,box-shadow .2s,border-color 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#00000029;--r:14px;--r-sm:8px;--r-xs:4px;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.6}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg)}a{color:var(--primary);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-light)}button{cursor:pointer;font-family:inherit}img{max-width:100%}h1,h2,h3,h4,h5{color:var(--text);line-height:1.25}.app-container{flex-direction:column;min-height:100vh;display:flex}.content-wrapper{flex:1;width:100%;max-width:1320px;margin:0 auto;padding:40px 28px}.role-bar{color:#94a3b8;background:#0f172a;border-bottom:1px solid #1e293b;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:6px 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.18s;display:flex}.sidebar-item:hover,.sidebar-item.active{color:var(--primary);background:#eff6ff}.course-player-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow-md);grid-template-columns:1fr 320px;display:grid;overflow:hidden}.video-section{padding:24px}.video-placeholder{background:var(--bg-deep);aspect-ratio:16/9;border-radius:var(--r-sm);justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.play-overlay{color:#fff;cursor:pointer;background:#0f172aa6;flex-direction:column;justify-content:center;align-items:center;gap:10px;font-size:.85rem;transition:background .2s;display:flex;position:absolute;inset:0}.play-overlay:hover{background:#0f172a80}.modules-list{border-left:1px solid var(--border);background:#f8fafc;max-height:580px;padding:16px;overflow-y:auto}.module-header{color:#334155;z-index:1;background:#e9eef8;border-radius:6px;margin-bottom:6px;padding:10px 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var(--border);border-radius:var(--r-sm);cursor:pointer;align-items:center;gap:12px;margin-top:9px;padding:11px 15px;font-size:.9rem;transition:all .18s;display:flex}.option-item:hover{background:#f8fafc;border-color:#94a3b8}.option-item.selected{border-color:var(--primary);background:#eff6ff;font-weight:600}.certificate-preview-container{border-radius:var(--r-sm);text-align:center;max-width:780px;box-shadow:var(--shadow-xl);background:#fff;border:10px double #d97706;margin:0 auto;padding:48px 40px;font-family:Georgia,Times New Roman,serif}.certificate-title{color:var(--primary);letter-spacing:-.01em;margin-bottom:8px;font-size:2.2rem;font-weight:700}.certificate-subtitle{color:var(--text-muted);margin-bottom:24px;font-size:1.05rem;font-style:italic}.certificate-name{color:#0f172a;border-bottom:2px solid #0f172a;margin:12px 0 28px;padding-bottom:4px;font-size:2rem;font-weight:700;display:inline-block}.table-container{-webkit-overflow-scrolling:touch;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);overflow-x:auto}.data-table{border-collapse:collapse;width:100%}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--border);padding:13px 16px;font-size:.875rem}.data-table th{color:#475569;text-transform:uppercase;letter-spacing:.05em;background:#f1f5f9;font-size:.75rem;font-weight:700}.data-table tr:last-child td{border-bottom:none}.data-table tbody tr:hover{background:#fafbff}.checkout-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow-sm);margin-top:24px;padding:24px}.checkout-card h3{color:var(--text);margin:0 0 16px;font-size:1.15rem;font-weight:700}.section-title{text-align:center;letter-spacing:-.02em;margin-bottom:10px;font-size:2rem;font-weight:800}.section-sub{text-align:center;color:var(--text-muted);margin-bottom:36px;font-size:1rem}.journey-step{align-items:flex-start;gap:20px;padding-bottom:28px;display:flex;position:relative}.journey-step:not(:last-child):after{content:"";background:linear-gradient(to bottom, var(--primary), #c7d6f5);width:2px;position:absolute;top:36px;bottom:0;left:17px}.step-circle{background:var(--primary);color:#fff;z-index:1;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:.95rem;font-weight:800;display:flex;box-shadow:0 0 0 5px #dde9ff}.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-sm);margin-bottom:10px;transition:box-shadow 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.2s;position:relative}.testimonial-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.testimonial-card:before{content:"“";color:#dde9ff;font-family:Georgia,serif;font-size:4rem;line-height:1;position:absolute;top:16px;right:22px}.stars{color:var(--accent);gap:3px;margin-bottom:14px;display:flex}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#f1f5f9}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--primary)}.text-muted{color:var(--text-muted)}.text-center{text-align:center}.mt-sm{margin-top:12px}.mt-md{margin-top:24px}.mt-lg{margin-top:48px}.mt-xl{margin-top:64px}.gap-sm{gap:10px}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}@media (width<=768px){.nav-links>span{display:none}.hero-title{font-size:2.2rem}.content-wrapper{padding:24px 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#e2e8f0;border-radius:12px;transition:all .25s cubic-bezier(.16,1,.3,1);display:flex;position:relative;overflow:hidden;box-shadow:0 4px 16px #0f172a0a}.assignment-card:hover{border-color:#cbd5e1;transform:translateY(-2px);box-shadow:0 10px 28px #0f172a14}.assignment-card-accent{border-radius:12px 0 0 12px;flex-shrink:0;width:6px}.assignment-card-accent.pending{background:linear-gradient(#94a3b8,#64748b)}.assignment-card-accent.review{background:linear-gradient(#3b82f6,#2563eb)}.assignment-card-accent.approved{background:linear-gradient(#10b981,#059669)}.assignment-card-accent.rejected{background:linear-gradient(#ef4444,#dc2626)}.assignment-card-body{flex:1;min-width:0;padding:24px 28px}.assignment-card-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:12px;display:flex}.assignment-card-title{color:#0f172a;margin:0;font-size:1.15rem;font-weight:700;line-height:1.35}.assignment-card-meta{color:#64748b;flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 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