@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";
:root{--primary:#6366f1;--primary-hover:#4f46e5;--bg-color:#f8fafc;--card-bg:#ffffffb3;--text-main:#0f172a;--text-muted:#64748b;--border-color:#e2e8f0cc;--glass-shadow:0 4px 30px #0000000d;--glass-border:1px solid #ffffff4d}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,sans-serif}body{background:var(--bg-color);color:var(--text-main);background-image:radial-gradient(at 0 0,#100f1500 0,#0000 50%),radial-gradient(at 50% 0,#2f3e6a0d 0,#0000 50%),radial-gradient(at 100% 0,#7227410d 0,#0000 50%);flex-direction:column;min-height:100vh;display:flex}.layout-wrapper{flex-direction:column;align-items:center;width:100%;min-height:100vh;display:flex}.main-header{-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);width:100%;box-shadow:var(--glass-shadow);text-align:center;z-index:10;background:#fffc;padding:1rem 2rem;position:sticky;top:0}.main-header h1{background:linear-gradient(135deg, var(--primary), #ec4899);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.5rem;font-weight:800}.main-content{flex:1;width:100%;max-width:1000px;padding:2rem 1.5rem}.page-container{flex-direction:column;gap:3rem;display:flex}.section-title{color:var(--text-main);margin-bottom:1.5rem;font-size:1.75rem;font-weight:700;display:inline-block;position:relative}.section-title:after{content:"";background:var(--primary);border-radius:2px;width:40%;height:4px;position:absolute;bottom:-6px;left:0}.glass-card{background:var(--card-bg);-webkit-backdrop-filter:blur(16px);border:var(--glass-border);box-shadow:var(--glass-shadow);border-radius:1.5rem;padding:2rem;transition:transform .3s,box-shadow .3s}.glass-card:hover{transform:translateY(-4px);box-shadow:0 10px 40px #00000014}.form-group{margin-bottom:1.5rem}.form-label{color:var(--text-muted);margin-bottom:.5rem;font-size:.875rem;font-weight:600;display:block}.form-input{border:1px solid var(--border-color);width:100%;color:var(--text-main);background:#fff;border-radius:.75rem;padding:.875rem 1rem;font-size:1rem;transition:all .2s}.form-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #6366f133}.file-input{width:100%;color:var(--text-muted);font-size:.875rem}.file-input::file-selector-button{color:var(--primary);cursor:pointer;background:#e0e7ff;border:none;border-radius:.5rem;margin-right:1rem;padding:.6rem 1.2rem;font-weight:600;transition:background .2s}.file-input::file-selector-button:hover{background:#c7d2fe}.btn-primary{background:linear-gradient(135deg, var(--primary), #818cf8);color:#fff;cursor:pointer;border:none;border-radius:.75rem;width:100%;padding:1rem 1.5rem;font-size:1rem;font-weight:700;transition:all .3s;box-shadow:0 4px 14px #6366f14d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #6366f166}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{cursor:not-allowed;box-shadow:none;background:#a5b4fc;transform:none}.btn-secondary{border:1px solid var(--border-color);color:var(--text-main);cursor:pointer;background:#fff;border-radius:2rem;padding:.75rem 1.5rem;font-size:.95rem;font-weight:600;transition:all .2s;box-shadow:0 2px 8px #00000005}.btn-secondary:hover{background:#f1f5f9;border-color:#cbd5e1}.loading-state{text-align:center;color:var(--text-muted);padding:3rem;font-weight:500;animation:2s infinite pulse}@keyframes pulse{0%{opacity:.6}50%{opacity:1}to{opacity:.6}}.course-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;display:grid}.course-card{border:1px solid var(--border-color);background:#fff;border-radius:1rem;flex-direction:column;transition:all .3s;display:flex;overflow:hidden}.course-card:hover{border-color:#cbd5e1;transform:translateY(-5px);box-shadow:0 12px 24px #0000001a}.course-thumb{background:#f1f5f9;width:100%;height:180px;position:relative;overflow:hidden}.course-thumb img{object-fit:cover;width:100%;height:100%;transition:transform .5s}.course-card:hover .course-thumb img{transform:scale(1.05)}.course-thumb-placeholder{color:#94a3b8;background:linear-gradient(135deg,#f8fafc,#f1f5f9);justify-content:center;align-items:center;width:100%;height:100%;font-size:.875rem;font-weight:500;display:flex}.course-info{flex-direction:column;flex:1;padding:1.25rem;display:flex}.course-title{color:var(--text-main);margin-bottom:.5rem;font-size:1.125rem;font-weight:700;line-height:1.4}.course-meta{color:var(--text-muted);justify-content:space-between;align-items:center;margin-top:auto;font-size:.875rem;display:flex}.course-badge{color:var(--primary);background:#f1f5f9;border-radius:1rem;padding:.25rem .75rem;font-size:.75rem;font-weight:600}.empty-state{text-align:center;border:2px dashed var(--border-color);color:var(--text-muted);background:#ffffff80;border-radius:1.5rem;padding:4rem 2rem}.load-more-container{justify-content:center;margin-top:3rem;display:flex}