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50%)}.model-card-3d-icon{position:relative;z-index:1}.model-card-3d-icon .cube{width:60px;height:60px;position:relative;transform-style:preserve-3d;animation:cubeRotate 8s linear infinite}.model-card:hover .cube{animation-duration:3s}@keyframes cubeRotate{0%{transform:rotateX(0) rotateY(0)}25%{transform:rotateX(90deg) rotateY(90deg)}50%{transform:rotateX(180deg) rotateY(180deg)}75%{transform:rotateX(270deg) rotateY(270deg)}to{transform:rotateX(360deg) rotateY(360deg)}}.model-card-3d-icon .cube .face{position:absolute;width:60px;height:60px;border:2px solid rgba(53,61,240,.4);background:rgba(53,61,240,.05);border-radius:4px}.model-card-3d-icon .cube .face:nth-child(1){transform:rotateY(0) translateZ(30px)}.model-card-3d-icon .cube .face:nth-child(2){transform:rotateY(90deg) translateZ(30px)}.model-card-3d-icon .cube .face:nth-child(3){transform:rotateY(180deg) translateZ(30px)}.model-card-3d-icon .cube .face:nth-child(4){transform:rotateY(270deg) translateZ(30px)}.model-card-3d-icon .cube .face:nth-child(5){transform:rotateX(90deg) translateZ(30px)}.model-card-3d-icon .cube .face:nth-child(6){transform:rotateX(-90deg) translateZ(30px)}.model-card-category-badge{position:absolute;top:12px;left:12px;background:rgba(15,22,41,.85);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:4px 10px;border-radius:8px;font-size:.7rem;color:#5b63f5;font-weight:700;text-transform:uppercase;letter-spacing:.5px;border:1px solid rgba(53,61,240,.2);z-index:2}.model-card-format{position:absolute;top:12px;right:12px;background:rgba(15,22,41,.85);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:4px 10px;border-radius:8px;font-size:.7rem;color:#64748b;font-weight:700;text-transform:uppercase;border:1px solid #1e293b;z-index:2}.model-card-delete{position:absolute;bottom:12px;right:12px;background:rgba(15,22,41,.85);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(239,68,68,.3);border-radius:8px;padding:6px 8px;color:#ef4444;cursor:pointer;z-index:2;opacity:0;transform:scale(.8);transition:all .2s ease;display:flex;align-items:center;justify-content:center}.model-card:hover .model-card-delete{opacity:1;transform:scale(1)}.model-card-delete:hover{background:rgba(239,68,68,.2);border-color:#ef4444}.model-card-info{padding:20px}.model-card-name{font-size:1.1rem;font-weight:700;color:#e2e8f0;margin:0 0 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.model-card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px}.model-card-supplier{font-size:.85rem;color:#64748b;display:flex;align-items:center;gap:6px}.model-card-date{font-size:.8rem;color:#475569}.model-card-comments{display:flex;align-items:center;gap:5px;font-size:.8rem;color:#64748b;background:#0f1629;padding:4px 10px;border-radius:8px}.model-grid.list-view .model-card{display:flex;flex-direction:row}.model-grid.list-view .model-card-preview{width:200px;height:auto;min-height:120px;flex-shrink:0}.model-grid.list-view .model-card-info{flex:1}.model-empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 20px;text-align:center}.model-empty-icon{width:120px;height:120px;border-radius:50%;background:linear-gradient(135deg,rgba(53,61,240,.1),rgba(91,99,245,.05));display:flex;align-items:center;justify-content:center;margin-bottom:24px;border:2px solid rgba(53,61,240,.15)}.model-empty-icon svg{font-size:3rem;color:#353df0;opacity:.7}.model-empty-title{font-size:1.5rem;font-weight:700;color:#e2e8f0;margin:0 0 10px}.model-empty-text{font-size:1rem;color:#64748b;margin:0 0 30px;max-width:400px;line-height:1.5}.model-empty-upload{background:linear-gradient(135deg,#353DF0,#5b63f5);color:#fff;border:none;padding:14px 30px;border-radius:12px;font-size:1rem;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:10px;transition:all .3s ease;box-shadow:0 4px 20px #353df04d}.model-empty-upload:hover{background:linear-gradient(135deg,#5b63f5,#7b83f7);box-shadow:0 6px 30px #353df066;transform:translateY(-2px)}.model-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 20px;gap:20px}.model-spinner{width:50px;height:50px;border:3px solid #1e293b;border-top-color:#353df0;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.model-loading-text{color:#64748b;font-size:.95rem}@media (max-width: 768px){.model-gallery-header{flex-direction:column;align-items:flex-start}.model-search-input{width:100%}.model-grid{grid-template-columns:1fr}.model-categories{gap:6px}.model-category-tab{padding:8px 14px;font-size:.85rem}}.dashboard-container{min-height:100vh;background:#0a0e1a;background-image:linear-gradient(rgba(53,61,240,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(53,61,240,.02) 1px,transparent 1px);background-size:40px 40px;padding:20px;font-family:Segoe UI,Roboto,sans-serif}.dashboard-content{max-width:1200px;margin:0 auto;padding:40px 20px}.dashboard-header{margin-bottom:50px;background:#111827;border-radius:16px;padding:30px;border:1px solid #1e293b;box-shadow:0 4px 20px #0003}.header-content{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;flex-wrap:wrap;gap:20px}.logo-section{display:flex;align-items:center;gap:20px}.logo-icon{width:70px;height:70px;background:linear-gradient(135deg,#353DF0,#5b63f5);border-radius:15px;display:flex;align-items:center;justify-content:center;font-size:2.5rem;color:#fff;box-shadow:0 0 15px #353df026}.logo-text{display:flex;flex-direction:column}.dashboard-title{font-size:3.5rem;font-weight:900;color:#353df0;margin:0;letter-spacing:-1px}.company-tagline{font-size:1rem;color:#64748b;margin:5px 0 0;font-weight:500}.header-actions{display:flex;align-items:center;gap:20px}#google_translate_element select,.language-selector,.goog-te-combo{background-color:#0f1629!important;color:#cbd5e1!important;border:1px solid #1e293b!important;border-radius:8px!important;padding:10px 15px!important;font-weight:600!important;font-size:.9rem!important;cursor:pointer!important;outline:none!important;transition:all .3s ease!important}#google_translate_element select:hover,.language-selector:hover,.goog-te-combo:hover{border-color:#353df0!important}#google_translate_element select option,.language-selector option,.goog-te-combo option{background-color:#111827!important;color:#cbd5e1!important}.goog-logo-link{display:none!important}.goog-te-gadget{color:transparent!important}.header-stats{display:flex;justify-content:space-around;gap:20px;padding-top:20px;border-top:1px solid #1e293b;flex-wrap:wrap}.stat-item{display:flex;align-items:center;gap:15px;padding:15px 20px;background:#0f1629;border-radius:12px;flex:1;min-width:150px;transition:all .3s ease;border:1px solid #1e293b}.stat-item:hover{border-color:#353df0;transform:translateY(-2px)}.stat-icon{font-size:2rem;color:#353df0}.stat-content{display:flex;flex-direction:column}.stat-value{font-size:1.8rem;font-weight:800;color:#e2e8f0;line-height:1}.stat-label{font-size:.8rem;color:#64748b;text-transform:uppercase;letter-spacing:1px;margin-top:5px}.services-section{text-align:center;margin-bottom:40px}.section-title{font-size:2.5rem;font-weight:800;color:#e2e8f0;margin-bottom:15px}.section-description{font-size:1.1rem;color:#64748b;max-width:700px;margin:0 auto;line-height:1.6}.dashboard-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:25px;margin:0 auto 50px;max-width:800px}.dashboard-card{background:#111827;border-radius:16px;padding:30px;cursor:pointer;transition:all .3s ease;border:1px solid #1e293b;box-shadow:0 4px 15px #0003;display:flex;align-items:center;gap:20px;position:relative;overflow:hidden}.dashboard-card:before{display:none}.dashboard-card:hover{transform:translateY(-5px);box-shadow:0 0 20px #353df01a;border-color:#353df0}.dashboard-card.disabled{opacity:.5;cursor:not-allowed}.dashboard-card.disabled:hover{transform:none;box-shadow:0 4px 15px #0003;border-color:#1e293b}.card-icon{font-size:2.5rem;color:#353df0;min-width:70px;display:flex;justify-content:center;align-items:center;background:rgba(53,61,240,.08);border-radius:12px;padding:18px;border:1px solid rgba(53,61,240,.12)}.card-content{flex:1}.card-content h3{font-size:1.4rem;font-weight:700;color:#e2e8f0;margin:0 0 8px}.card-content p{font-size:.95rem;color:#64748b;margin:0 0 10px;line-height:1.4}.card-badge{display:inline-block;padding:4px 12px;background:rgba(53,61,240,.1);border:1px solid rgba(53,61,240,.2);border-radius:20px;font-size:.7rem;color:#5b63f5;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.card-arrow{font-size:1.5rem;color:#353df0;transition:transform .3s ease;min-width:30px;display:flex;justify-content:center;align-items:center;opacity:.5}.dashboard-card:hover .card-arrow{transform:translate(5px);opacity:1}.coming-soon{font-size:.9rem;color:#475569;font-style:italic}.dashboard-footer{text-align:center;margin-top:50px}.logout-button{background:transparent;color:#ef4444;border:1px solid rgba(239,68,68,.3);padding:14px 36px;border-radius:8px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .3s ease;text-transform:uppercase;letter-spacing:1px}.logout-button:hover{background:rgba(239,68,68,.08);border-color:#ef4444;transform:translateY(-2px)}.tutor-button{background:transparent;color:#353df0;border:1px solid rgba(53,61,240,.3);padding:14px 26px;border-radius:8px;cursor:pointer;font-weight:700;display:flex;align-items:center;gap:10px;font-size:1rem;transition:all .3s ease}.tutor-button:hover{background:rgba(53,61,240,.08);border-color:#353df0;transform:translateY(-2px)}.info-section{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:25px;margin:50px 0}.info-card{background:#111827;border-radius:12px;padding:25px;border:1px solid #1e293b;transition:all .3s ease;text-align:center}.info-card:hover{transform:translateY(-5px);border-color:#2d3a50}.info-icon{font-size:2.5rem;color:#353df0;margin-bottom:15px}.info-card h4{font-size:1.2rem;color:#e2e8f0;margin:0 0 10px;font-weight:700}.info-card p{font-size:.9rem;color:#64748b;line-height:1.6;margin:0}.company-footer{margin-top:60px;padding-top:30px;border-top:1px solid #1e293b;text-align:center}.footer-text{font-size:1rem;color:#64748b;margin:0 0 10px}.footer-text strong{color:#353df0;font-weight:700}.footer-copyright{font-size:.85rem;color:#475569;margin:0}@media (max-width: 768px){.dashboard-container{padding:10px}.dashboard-content{padding:20px 10px}.dashboard-header{padding:20px}.header-content{flex-direction:column;align-items:flex-start}.logo-section{width:100%}.dashboard-title{font-size:2.5rem}.company-tagline{font-size:.85rem}.header-stats{flex-direction:column}.stat-item{width:100%}.section-title{font-size:1.8rem}.section-description{font-size:.95rem}.dashboard-grid{grid-template-columns:1fr;gap:15px}.dashboard-card{padding:20px;flex-direction:column;text-align:center}.card-icon{font-size:2rem;min-width:60px;padding:15px}.card-content h3{font-size:1.2rem}.card-arrow{margin-top:10px}.info-section{grid-template-columns:1fr}.dashboard-footer{flex-direction:column}.tutor-button,.logout-button{width:100%;justify-content:center}}@media (max-width: 480px){.dashboard-title{font-size:2rem}.dashboard-card{padding:15px}.card-icon{font-size:1.8rem;min-width:50px;padding:12px}.logo-icon{width:55px;height:55px;font-size:2rem}.stat-item{padding:12px 15px;min-width:120px}.stat-value{font-size:1.4rem}.dashboard-header{padding:15px}.header-actions{width:100%;justify-content:center}.info-card{padding:20px}}@media (max-width: 360px){.dashboard-container{padding:5px}.dashboard-content{padding:15px 5px}.dashboard-title{font-size:1.5rem}.logo-icon{width:45px;height:45px;font-size:1.5rem}.section-title{font-size:1.4rem}.stat-item{min-width:100%}}.placeholder-card{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:60px 20px;background:#111827;border:1px solid #1e293b;border-radius:12px;text-align:center}.placeholder-card h3{color:#e2e8f0;margin:0;font-size:20px}.placeholder-card p{color:#94a3b8;margin:0;font-size:14px;max-width:400px}.sidebar-toggle--open{position:fixed;top:12px;left:12px;z-index:1100;background:#1e293b;border:1px solid #353DF0;color:#353df0;width:40px;height:40px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;transition:opacity .3s ease}.sidebar-toggle--open:hover{background:rgba(53,61,240,.15)}.sidebar{position:fixed;top:0;left:0;width:260px;height:100vh;background:#0f1629;border-right:1px solid #1e293b;display:flex;flex-direction:column;z-index:1200;transition:transform .3s ease;box-shadow:4px 0 20px #0006}.sidebar--collapsed{transform:translate(-100%)}.sidebar--open{transform:translate(0)}.sidebar-header{padding:16px 16px 12px;border-bottom:1px solid #1e293b}.sidebar-header-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.sidebar-logo{color:#353df0;font-size:22px;font-weight:900;letter-spacing:2px}.sidebar-close{background:transparent;border:none;color:#64748b;font-size:22px;cursor:pointer;padding:4px;border-radius:6px;display:flex;align-items:center}.sidebar-close:hover{color:#e2e8f0;background:rgba(255,255,255,.05)}.sidebar-user{display:flex;align-items:center;gap:10px;padding:8px 12px;background:rgba(53,61,240,.08);border-radius:8px}.sidebar-user-icon{font-size:22px;color:#353df0;flex-shrink:0}.sidebar-user-info{display:flex;flex-direction:column;overflow:hidden;min-width:0}.sidebar-user-name{color:#e2e8f0;font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-user-role{color:#94a3b8;font-size:11px;text-transform:uppercase;letter-spacing:.5px}.sidebar-nav{flex:1;padding:12px;overflow-y:auto;display:flex;flex-direction:column;gap:4px}.sidebar-nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;background:transparent;border:none;border-radius:8px;color:#94a3b8;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;width:100%;text-align:left}.sidebar-nav-item:hover{background:rgba(53,61,240,.08);color:#e2e8f0}.sidebar-nav-item.active{background:rgba(53,61,240,.15);color:#353df0;font-weight:600}.sidebar-nav-icon{font-size:18px;min-width:20px}.sidebar-footer{padding:12px;border-top:1px solid #1e293b}.sidebar-logout{display:flex;align-items:center;gap:12px;padding:10px 12px;background:transparent;border:1px solid rgba(239,68,68,.3);border-radius:8px;color:#f87171;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;width:100%}.sidebar-logout:hover{background:rgba(239,68,68,.1);border-color:#ef4444}.sidebar-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:1100;cursor:pointer}.App{text-align:center;min-height:100vh;background:var(--bg-color);color:var(--text-color)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font-family:inherit;cursor:pointer;border:none;outline:none}input,select,textarea{font-family:inherit;outline:none}a{text-decoration:none;color:inherit}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{display:inline-block;padding:12px 24px;border-radius:8px;font-weight:600;text-align:center;transition:all .3s ease;cursor:pointer;border:none;text-decoration:none}.btn-primary{background:var(--primary-color);color:#fff;font-weight:700}.btn-primary:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:var(--glow-primary)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-color);border:1px solid var(--border-color)}.btn-secondary:hover{background:#243049;transform:translateY(-2px)}.btn-danger{background:var(--error);color:#fff}.btn-danger:hover{background:#dc2626;transform:translateY(-2px)}.card{background:var(--card-bg);border-radius:12px;box-shadow:0 4px 20px #0000004d;padding:30px;margin-bottom:20px;border:1px solid var(--border-color)}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;color:var(--text-secondary);font-weight:600;font-size:.9rem}.form-input{width:100%;padding:12px 16px;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;transition:all .3s ease;background:var(--bg-tertiary);color:var(--text-color)}.form-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px var(--primary-dim)}.form-input::placeholder{color:var(--text-muted)}.error-message{background:rgba(239,68,68,.1);color:#f87171;padding:12px 16px;border-radius:8px;margin-bottom:15px;font-size:.9rem;text-align:center;border:1px solid rgba(239,68,68,.2)}.success-message{background:rgba(34,197,94,.1);color:#4ade80;padding:12px 16px;border-radius:8px;margin-bottom:15px;font-size:.9rem;text-align:center;border:1px solid rgba(34,197,94,.2)}.loading-spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--border-color);border-top:2px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.container{padding:0 15px}.card{padding:20px;margin-bottom:15px}}.app-layout{display:flex;min-height:100vh;background:#0a0e1a}.app-main{flex:1;min-height:100vh;background:#0a0e1a;width:100%}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:#0a0e1a;color:#94a3b8;gap:20px}.loading-spinner-large{width:40px;height:40px;border:3px solid #1e293b;border-top:3px solid #353DF0;border-radius:50%;animation:spin 1s linear infinite}@media (max-width: 768px){.app-main{margin-left:0;padding-top:60px}}@media (max-width: 480px){.card{padding:15px}.container{padding:0 10px}.btn{padding:12px 18px;font-size:.9rem}}