@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap";:root{--bg-primary: #090d16;--bg-secondary: #0f172a;--bg-tertiary: #1e293b;--border-color: rgba(255, 255, 255, .08);--border-focus: #6366f1;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--primary: #4f46e5;--primary-hover: #4338ca;--primary-light: rgba(79, 70, 229, .15);--success: #10b981;--danger: #ef4444;--danger-hover: #dc2626;--font-display: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, .3), 0 8px 10px -6px rgba(0, 0, 0, .3);--glass-bg: rgba(15, 23, 42, .75);--glass-border: rgba(255, 255, 255, .06)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;overflow-x:hidden}button,.btn{font-family:var(--font-body);display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:10px;font-weight:600;font-size:.9rem;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);border:none}.btn-primary{background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;border:1px solid rgba(255,255,255,.1);box-shadow:0 4px 12px #4f46e540,inset 0 1px 1px #fff3;border-radius:12px;padding:12px 20px}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px #4f46e573,inset 0 1px 2px #ffffff4d;background:linear-gradient(135deg,#4f46e5,#4338ca)}.btn-primary:active{transform:translateY(1px);box-shadow:0 2px 8px #4f46e533,inset 0 1px 1px #0003}.btn-secondary{background-color:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:12px}.btn-secondary:hover{background-color:#ffffff0d;border-color:#ffffff26}.btn-danger{background-color:#ef444426;color:#f87171;border:1px solid rgba(239,68,68,.2);border-radius:12px}.btn-danger:hover{background-color:var(--danger);color:#fff}.btn-icon{padding:8px;border-radius:8px;background:transparent;color:var(--text-secondary)}.btn-icon:hover{background-color:#ffffff0f;color:var(--text-primary)}.login-container{position:relative;display:flex;align-items:center;justify-content:center;min-height:100vh;background-color:#050812;background-image:radial-gradient(circle at 0% 0%,rgba(79,70,229,.18) 0%,transparent 35%),radial-gradient(circle at 100% 100%,rgba(99,102,241,.12) 0%,transparent 40%),radial-gradient(circle at 50% 50%,#0d142680,#050812);padding:20px;overflow:hidden}.glow-sphere{position:absolute;border-radius:50%;filter:blur(100px);z-index:1;opacity:.5;pointer-events:none}.sphere-1{width:350px;height:350px;background:radial-gradient(circle,#6366f159,#4f46e500 70%);top:15%;left:20%;animation:floatSphere1 20s infinite alternate ease-in-out}.sphere-2{width:400px;height:400px;background:radial-gradient(circle,#4f46e540,#8b5cf600 70%);bottom:15%;right:20%;animation:floatSphere2 25s infinite alternate ease-in-out}@keyframes floatSphere1{0%{transform:translate(0) scale(1)}to{transform:translate(60px,-40px) scale(1.15)}}@keyframes floatSphere2{0%{transform:translate(0) scale(1)}to{transform:translate(-80px,50px) scale(.9)}}.login-card{position:relative;z-index:2;background:#0d1426a6;backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border:1px solid rgba(255,255,255,.08);border-radius:24px;width:100%;max-width:440px;padding:48px 40px;box-shadow:0 4px 30px #0006,inset 0 1px 1px #ffffff1a,0 0 40px -10px #6366f133;transition:border-color .4s ease,box-shadow .4s ease,transform .4s ease;animation:cardFadeIn .6s cubic-bezier(.16,1,.3,1)}.login-card:hover{border-color:#6366f140;box-shadow:0 10px 40px #00000080,inset 0 1px 2px #ffffff26,0 0 60px -5px #6366f159;transform:translateY(-2px)}@keyframes cardFadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-header{text-align:center;margin-bottom:36px;display:flex;flex-direction:column;align-items:center}.logo-icon-wrapper{display:flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,#6366f126,#4f46e50d);border:1px solid rgba(99,102,241,.25);margin-bottom:16px;color:#818cf8;box-shadow:0 8px 20px -6px #6366f166;transition:all .3s ease;animation:pulseLogo 3s infinite ease-in-out}.login-card:hover .logo-icon-wrapper{border-color:#6366f180;box-shadow:0 8px 24px -4px #6366f199;transform:scale(1.05) rotate(5deg);color:#a5b4fc}@keyframes pulseLogo{0%,to{transform:scale(1)}50%{transform:scale(1.04)}}.logo-svg{width:32px;height:32px;filter:drop-shadow(0 2px 8px rgba(99,102,241,.3))}.logo-text{font-family:var(--font-display);font-weight:800;font-size:2.8rem;background:linear-gradient(135deg,#e0e7ff,#818cf8,#4f46e5);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.04em;margin-bottom:8px;filter:drop-shadow(0 4px 12px rgba(79,70,229,.15))}.login-subtitle{color:var(--text-secondary);font-size:.9rem;font-weight:500;max-width:280px;line-height:1.4;letter-spacing:-.01em}.form-group{margin-bottom:20px}.form-label{display:block;font-size:.8rem;font-weight:700;color:var(--text-secondary);margin-bottom:8px;text-transform:uppercase;letter-spacing:.08em}.form-control{width:100%;padding:12px 16px;background-color:#090d168c;border:1px solid rgba(255,255,255,.08);border-radius:12px;color:var(--text-primary);font-family:var(--font-body);font-size:.95rem;transition:all .25s cubic-bezier(.4,0,.2,1)}.form-control:focus{outline:none;border-color:#6366f1;box-shadow:0 0 0 4px #6366f126;background-color:#090d16cc}.form-error{color:#f87171;font-size:.85rem;margin-top:6px}.error-banner{background-color:#ef44441a;border:1px solid rgba(239,68,68,.2);color:#f87171;padding:12px 16px;border-radius:10px;margin-bottom:20px;font-size:.9rem;display:flex;align-items:center;gap:8px}.app-layout{display:flex;flex-direction:column;min-height:100vh}.top-bar{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;background-color:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--glass-border);position:sticky;top:0;z-index:100;gap:24px}.top-bar-left{display:flex;align-items:center;gap:32px;flex-grow:1;max-width:800px}.brand{display:flex;align-items:center;gap:8px;text-decoration:none}.brand-text{font-family:var(--font-display);font-weight:800;font-size:1.8rem;background:linear-gradient(135deg,#a5b4fc,#6366f1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.04em}.search-box-wrapper{position:relative;flex-grow:1}.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);pointer-events:none}.search-control{padding-left:44px}.top-bar-right{display:flex;align-items:center;gap:20px}.user-profile{display:flex;align-items:center;gap:12px;background-color:#ffffff08;padding:6px 14px 6px 8px;border-radius:30px;border:1px solid var(--border-color)}.user-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#a5b4fc);display:flex;align-items:center;justify-content:center;font-weight:700;color:#090d16;font-family:var(--font-display);font-size:.9rem}.user-info{display:flex;flex-direction:column}.user-role-badge{font-size:.65rem;font-weight:800;color:#818cf8;text-transform:uppercase;letter-spacing:.05em}.user-email{font-size:.8rem;color:var(--text-secondary)}.main-container{display:flex;flex-grow:1}.sidebar{width:280px;border-right:1px solid var(--border-color);background-color:#0f172a66;padding:32px 24px;display:flex;flex-direction:column;gap:24px;flex-shrink:0}.sidebar-title{font-family:var(--font-display);font-size:1.15rem;font-weight:700;letter-spacing:-.01em;color:var(--text-primary);display:flex;align-items:center;justify-content:space-between}.filter-reset-link{font-size:.8rem;color:var(--text-muted);text-decoration:none;cursor:pointer;font-weight:500;transition:color .2s}.filter-reset-link:hover{color:var(--primary-hover)}.content-area{flex-grow:1;padding:32px;display:flex;flex-direction:column;gap:24px}.content-header{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.active-chips-container{display:flex;align-items:center;gap:8px;flex-wrap:wrap;flex-grow:1}.filter-chip{display:inline-flex;align-items:center;gap:6px;background-color:var(--primary-light);color:#a5b4fc;padding:6px 12px;border-radius:20px;font-size:.8rem;font-weight:600;border:1px solid rgba(99,102,241,.2)}.filter-chip-remove{background:transparent;border:none;color:#c7d2fe;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;padding:0;border-radius:50%;width:16px;height:16px}.filter-chip-remove:hover{background-color:#ffffff1a;color:#fff}.sort-wrapper{display:flex;align-items:center;gap:10px}.sort-label{font-size:.85rem;color:var(--text-secondary);font-weight:500}.sort-select{padding:8px 12px;background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);font-family:var(--font-body);font-size:.85rem;cursor:pointer}.sort-select:focus{outline:none;border-color:var(--border-focus)}.lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}.lesson-card{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:16px;overflow:hidden;box-shadow:0 4px 6px -1px #0000001a;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;height:100%;position:relative}.lesson-card:hover{transform:translateY(-4px);border-color:#ffffff26;box-shadow:var(--shadow-lg)}.card-thumbnail-wrapper{aspect-ratio:16 / 10;background:linear-gradient(135deg,#4f46e533,#6366f10d);display:flex;align-items:center;justify-content:center;position:relative;cursor:pointer}.card-thumbnail-placeholder{font-family:var(--font-display);font-weight:800;font-size:2.2rem;color:#6366f140;letter-spacing:-.05em;-webkit-user-select:none;user-select:none}.card-action-overlay{position:absolute;top:12px;right:12px;display:flex;gap:8px;z-index:10;opacity:0;transform:translateY(-4px);transition:all .2s ease}.lesson-card:hover .card-action-overlay{opacity:1;transform:translateY(0)}.card-action-btn{background-color:#0f172ad9;border:1px solid rgba(255,255,255,.1);padding:6px;border-radius:8px;cursor:pointer;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;transition:all .2s}.card-action-btn:hover{color:#fff}.card-action-btn.edit:hover{background-color:var(--primary);border-color:var(--primary)}.card-action-btn.delete:hover{background-color:var(--danger);border-color:var(--danger)}.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex-grow:1;cursor:pointer}.card-title{font-family:var(--font-display);font-size:1.1rem;font-weight:600;line-height:1.4;color:var(--text-primary);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;height:3em}.card-topic{font-size:.8rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}.tag{font-size:.7rem;font-weight:700;padding:4px 8px;border-radius:6px;text-transform:uppercase;letter-spacing:.02em}.tag-class{background-color:#ffffff0d;color:var(--text-secondary);border:1px solid var(--border-color)}.tag-subject{background-color:#6366f11a;color:#a5b4fc}.tag-syllabus{background-color:#10b9811a;color:#a7f3d0}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 20px;text-align:center;color:var(--text-secondary);background-color:#ffffff03;border:2px dashed var(--border-color);border-radius:20px;gap:16px;max-width:480px;margin:40px auto}.empty-icon{font-size:3rem;color:var(--text-muted)}.modal-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background-color:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease-out}.modal-content{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:20px;width:100%;max-width:520px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;animation:scaleUp .3s cubic-bezier(.34,1.56,.64,1);max-height:90vh;overflow:hidden}.modal-header{padding:24px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.modal-title{font-family:var(--font-display);font-size:1.3rem;font-weight:700}.modal-body{padding:24px;overflow-y:auto;display:flex;flex-direction:column;gap:16px}.modal-footer{padding:20px 24px;border-top:1px solid var(--border-color);display:flex;justify-content:flex-end;gap:12px;background-color:#ffffff03}.file-drop-zone{border:2px dashed var(--border-color);border-radius:12px;padding:30px 20px;text-align:center;cursor:pointer;transition:all .2s;background-color:#ffffff03;display:flex;flex-direction:column;align-items:center;gap:10px}.file-drop-zone:hover,.file-drop-zone.active{border-color:var(--border-focus);background-color:#6366f108}.file-drop-icon{font-size:2.2rem;color:var(--text-muted)}.file-name-label{font-size:.9rem;font-weight:600;color:#a5b4fc}.file-input{display:none}.lists-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;min-height:380px}.list-col{background-color:#00000026;border:1px solid var(--border-color);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:12px}.list-col-header{font-size:.85rem;font-weight:700;text-transform:uppercase;color:var(--text-secondary);letter-spacing:.05em;padding-bottom:8px;border-bottom:1px solid var(--border-color)}.list-items-wrapper{flex-grow:1;overflow-y:auto;display:flex;flex-direction:column;gap:6px;max-height:260px;padding-right:4px}.list-item-row{display:flex;align-items:center;justify-content:space-between;background-color:#ffffff08;padding:8px 12px;border-radius:8px;font-size:.85rem;border:1px solid transparent;transition:all .2s}.list-item-row:hover{background-color:#ffffff0d;border-color:#ffffff0d}.list-item-delete{background:transparent;border:none;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;padding:2px}.list-item-delete:hover{color:#ef4444}.list-append-form{display:flex;gap:8px;margin-top:auto}.list-append-form .form-control{padding:8px 12px;font-size:.85rem}.list-append-form button{padding:8px 12px;border-radius:8px;font-size:.85rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleUp{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media (max-width: 900px){.lists-grid{grid-template-columns:1fr;max-height:400px;overflow-y:auto}.main-container{flex-direction:column}.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border-color)}}.creator-mode-wrapper{display:flex;align-items:center;gap:10px;background-color:#ffffff05;padding:6px 14px;border-radius:20px;border:1px solid var(--border-color);transition:all .2s ease}.creator-mode-wrapper:hover{background-color:#ffffff0a;border-color:#ffffff1f}.creator-mode-label{font-family:var(--font-body);font-size:.85rem;font-weight:600;color:var(--text-secondary);-webkit-user-select:none;user-select:none}.switch{position:relative;display:inline-block;width:44px;height:24px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--bg-tertiary);transition:.3s cubic-bezier(.4,0,.2,1);border:1px solid var(--border-color)}.slider:before{position:absolute;content:"";height:16px;width:16px;left:3px;bottom:3px;background-color:var(--text-secondary);transition:.3s cubic-bezier(.4,0,.2,1)}input:checked+.slider{background-color:var(--primary-light);border-color:var(--primary)}input:checked+.slider:before{transform:translate(20px);background-color:#6366f1}.slider.round{border-radius:24px}.slider.round:before{border-radius:50%}