.auth-container{min-height:80vh;display:flex;align-items:center;justify-content:center;padding:2rem}.auth-card{background:var(--surface);padding:2.5rem;border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:450px;border:1px solid var(--border)}.auth-card h2{text-align:center;margin-bottom:.5rem;color:var(--primary)}.auth-card p{text-align:center;color:var(--text-muted);margin-bottom:2rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;font-size:.9rem}.auth-btn{width:100%;padding:.8rem;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-weight:600;cursor:pointer;transition:background .2s;margin-top:1rem}.auth-btn:hover{background:var(--primary-hover)}.auth-footer{margin-top:1.5rem;text-align:center;font-size:.9rem;color:var(--text-muted)}.auth-footer a{color:var(--primary);font-weight:600}.error-msg{background:#fee2e2;color:#991b1b;padding:.75rem;border-radius:var(--radius);margin-bottom:1.5rem;font-size:.9rem;text-align:center}.navbar{background:var(--surface);border-bottom:1px solid var(--border);padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.navbar-brand a{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.navbar-links{display:flex;align-items:center;gap:2rem}.nav-link{display:flex;align-items:center;gap:.5rem;font-weight:500;color:var(--text-muted);transition:color .2s}.nav-link:hover{color:var(--primary)}.user-menu{display:flex;align-items:center;gap:1.5rem;padding-left:1.5rem;border-left:1px solid var(--border)}.user-name{display:flex;align-items:center;gap:.5rem;font-weight:600;font-size:.9rem}.logout-btn{background:none;border:none;cursor:pointer;color:var(--text-muted);transition:color .2s;display:flex;align-items:center}.logout-btn:hover{color:var(--danger)}.hero{text-align:center;padding:6rem 1rem;background:radial-gradient(circle at center,rgba(99,102,241,.1) 0%,transparent 70%)}.hero h1{font-size:3.5rem;margin-bottom:1.5rem;color:var(--text-main)}.hero p{font-size:1.25rem;color:var(--text-muted);margin-bottom:2rem;max-width:600px;margin-left:auto;margin-right:auto}.gradient-text{background:linear-gradient(135deg,var(--primary),var(--secondary));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-bottom:4rem}.feature-card{background:var(--surface);padding:2rem;border-radius:var(--radius);border:1px solid var(--border);transition:transform .3s}.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.icon-wrapper{width:50px;height:50px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;color:#fff}.bg-indigo{background:var(--primary)}.bg-pink{background:var(--secondary)}.bg-emerald{background:var(--success)}.feature-card h3{margin-bottom:.5rem;font-size:1.25rem}.feature-card p{color:var(--text-muted);margin-bottom:1.5rem}.feature-card a{color:var(--primary);font-weight:500}.appunti-page{padding-top:2rem}.filters-bar{display:flex;gap:1rem;margin-bottom:2rem;background:var(--surface);padding:1rem;border-radius:var(--radius);border:1px solid var(--border)}.search-box{flex:1;position:relative}.search-box input{padding-left:2.5rem}.search-icon{position:absolute;left:.75rem;top:50%;transform:translateY(-50%);color:var(--text-muted)}.filters-bar select{width:200px}.appunti-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.appunto-card{display:flex;flex-direction:column;height:100%}.card-content{flex:1;display:flex;flex-direction:column}.cat-badge{display:inline-block;background:#e0e7ff;color:#4338ca;padding:.2rem .6rem;border-radius:6px;font-size:.75rem;width:fit-content;margin:.5rem 0}.author{font-size:.875rem;color:var(--text-muted);font-weight:500}.desc{margin-top:.5rem;font-size:.9rem;color:var(--text-main);flex:1}.card-actions{margin-top:1.5rem;display:flex;gap:1rem;border-top:1px solid var(--border);padding-top:1rem}.btn-icon{display:inline-flex;align-items:center;gap:.4rem;font-size:.9rem;font-weight:500;cursor:pointer;border:none;background:transparent;transition:color .2s}.preview{color:var(--secondary)}.download{color:var(--primary)}.download:hover{color:var(--primary-hover)}.delete{color:var(--text-muted);margin-left:auto}.delete:hover{color:var(--danger)}.modal-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#00000073;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:2000}@keyframes scaleIn{0%{opacity:0;transform:scale(.9) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}.preview-modal{width:90%;max-width:1100px;height:85vh;background:var(--surface);border-radius:24px;position:relative;overflow:hidden;display:flex;flex-direction:column;animation:scaleIn .35s cubic-bezier(.34,1.56,.64,1);box-shadow:var(--shadow-lg)}.modal-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#0006;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:2rem}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.preview-modal{width:95%;max-width:1100px;height:85vh;background:var(--surface);border-radius:24px;position:relative;overflow:hidden;display:flex;flex-direction:column;animation:scaleIn .3s cubic-bezier(.34,1.56,.64,1)}.close-btn{position:absolute;top:1.5rem;right:1.5rem;background:var(--border);border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:10}.preview-layout{display:flex;height:100%}.document-container{flex:2;padding:2rem;display:flex;flex-direction:column;border-right:1px solid var(--border)}.iframe-wrapper{flex:1;background:#f8fafc;border-radius:12px;overflow:hidden;border:1px solid var(--border)}.iframe-wrapper iframe{width:100%;height:100%}.comment-sidebar{flex:1;padding:2rem;display:flex;flex-direction:column;background:#fbfdfc}.comments-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:1rem}.comment-item{background:#fff;padding:1rem;border-radius:12px;border:1px solid var(--border)}.role-badge{font-size:.7rem;padding:.2rem .5rem;border-radius:6px}.role-badge.professore{background:#fee2e2;color:#b91c1c}.role-badge.studente{background:#dcfce7;color:#15803d}.comment-input{margin-top:1.5rem;display:flex;gap:.5rem;padding:.5rem;border-radius:12px;border:1px solid var(--primary)}.comment-input input{flex:1;border:none;padding:1rem}.comment-input button{background:var(--primary);color:#fff;border:none;width:40px;height:40px;border-radius:8px;cursor:pointer}@media(max-width:992px){.preview-layout{flex-direction:column}.document-container{border-right:none;border-bottom:1px solid var(--border)}}.dashboard-page{padding-top:2rem}.dashboard-grid{display:grid;grid-template-columns:2fr 1fr;gap:2rem}@media(max-width:768px){.dashboard-grid{grid-template-columns:1fr}}.upload-card{background:#fff}.full-width{width:100%;margin-top:1rem}.msg-badge{background:#dcfce7;color:#166534;padding:.5rem;border-radius:8px;margin-bottom:1rem;text-align:center}.evaluation-form-card{max-width:800px;margin:0 auto}.form-row{display:flex;gap:1rem}.form-row .form-group{flex:1}.checkbox-group label{display:flex;align-items:center;gap:.5rem;cursor:pointer;font-weight:500}.user-table{width:100%;border-collapse:collapse;margin-top:1rem}.user-table th,.user-table td{text-align:left;padding:1rem;border-bottom:1px solid var(--border)}.user-table th{font-weight:600;color:var(--text-muted)}.eval-layout{display:grid;grid-template-columns:350px 1fr;height:calc(100vh - 70px);overflow:hidden}.eval-sidebar{background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column}.sidebar-header{padding:1.5rem;border-bottom:1px solid var(--border)}.sidebar-header h3{margin-bottom:1rem;color:var(--primary)}.search-bar{display:flex;align-items:center;gap:.5rem;background:var(--background);padding:.5rem 1rem;border-radius:20px;border:1px solid var(--border)}.search-bar input{border:none;background:none;outline:none;width:100%}.student-list{flex:1;overflow-y:auto}.student-item{display:flex;align-items:center;padding:1rem 1.5rem;gap:1rem;cursor:pointer;transition:all .2s;border-bottom:1px solid var(--border)}.student-item:hover{background:#6366f10d}.student-item.active{background:#6366f11a;border-left:4px solid var(--primary)}.student-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}.student-info{flex:1;display:flex;flex-direction:column}.student-info .name{font-weight:600}.student-info .email{font-size:.8rem;color:var(--text-muted)}.eval-content{padding:2rem;overflow-y:auto;background:var(--background)}.select-prompt{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-muted);text-align:center}.details-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.profile-summary{display:flex;align-items:center;gap:1.5rem}.profile-icon{color:var(--primary)}.btn-edit-profile,.btn-add-eval{background:var(--primary);color:#fff;border:none;padding:.6rem 1.2rem;border-radius:var(--radius);display:flex;align-items:center;gap:.5rem;cursor:pointer}.evaluations-section{margin-top:2rem}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.eval-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1rem;box-shadow:var(--shadow-sm)}.eval-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;font-size:.9rem}.eval-actions button{background:none;border:none;cursor:pointer;color:var(--text-muted);margin-left:.5rem}.eval-actions button:hover{color:var(--primary)}.eval-actions button.delete:hover{color:var(--danger)}.eval-stats{display:flex;gap:2rem;margin-bottom:1rem}.stat span{font-size:.8rem;color:var(--text-muted)}.stat strong{display:block;color:var(--primary)}.eval-tag{display:inline-block;background:#e0e7ff;color:#4338ca;padding:.2rem .6rem;border-radius:12px;font-size:.75rem;font-weight:600}.eval-note{margin-top:1rem;font-size:.95rem;color:var(--text-secondary);line-height:1.5}.empty-state{text-align:center;padding:3rem;color:var(--text-muted);background:var(--surface);border-radius:var(--radius);border:1px dashed var(--border)}.profile-edit-form,.eval-form{padding:2rem;margin-bottom:2rem;border-radius:var(--radius)}.range-group{display:flex;flex-direction:column;gap:.5rem}.settings-page{padding:2rem;display:flex;justify-content:center}.settings-container{display:flex;width:100%;max-width:900px;min-height:500px;overflow:hidden}.settings-sidebar{flex:1;background:#0d94880d;padding:2rem 1rem;display:flex;flex-direction:column;gap:.5rem;border-right:1px solid var(--border)}.settings-sidebar button{display:flex;align-items:center;gap:.75rem;padding:.85rem 1rem;border:none;background:transparent;border-radius:var(--radius);color:var(--text-muted);font-weight:500;cursor:pointer;transition:all .2s;text-align:left}.settings-sidebar button:hover{background:#0d94881a;color:var(--primary)}.settings-sidebar button.active{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}.settings-sidebar button.logout-btn{margin-top:auto;border-top:1px solid var(--border);padding-top:1rem;margin-top:1rem;color:var(--danger)}.settings-sidebar button.logout-btn:hover{background:#ef44441a;color:var(--danger)}.settings-content{flex:3;padding:2.5rem;background:var(--surface)}.settings-content h2{margin-bottom:1.5rem;font-size:1.5rem;color:var(--text-main)}.input-group{margin-bottom:1.5rem}.input-group label{display:block;margin-bottom:.5rem;font-size:.9rem;font-weight:500;color:var(--text-muted)}.verification-status{margin-bottom:1.5rem;display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.verified{color:var(--success);font-weight:600;display:flex;align-items:center;gap:.3rem}.unverified{color:#f59e0b;font-weight:600;display:flex;align-items:center;gap:.3rem}.btn-secondary-sm{padding:.5rem 1rem;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-secondary-sm:hover{background:#0f766e;transform:translateY(-1px)}.status-msg{padding:1rem;border-radius:var(--radius);margin-bottom:1.5rem;display:flex;align-items:center;gap:.75rem;font-weight:500}.status-msg.success{background:#dcfce7;color:#15803d}.status-msg.error{background:#fee2e2;color:#b91c1c}.setup-2fa{text-align:center;background:#f8fafc;padding:2rem;border-radius:var(--radius);border:1px dashed var(--border)}.setup-2fa img{margin:1.5rem 0;border:4px solid white;border-radius:12px;box-shadow:var(--shadow-sm)}.secret-text{font-size:.85rem;color:var(--text-muted);margin-bottom:1.5rem}.verify-2fa{display:flex;gap:.5rem;justify-content:center}.verify-2fa input{max-width:250px;text-align:center;font-size:1.25rem;letter-spacing:2px}.active-2fa{display:flex;flex-direction:column;align-items:center;gap:2rem;padding:3rem;background:#f0fdf4;border-radius:var(--radius)}.status-badge.active{background:#fff;padding:.75rem 1.5rem;border-radius:50px;color:var(--success);font-weight:700;box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:.5rem}.btn-danger-outline{background:transparent;border:2px solid var(--danger);color:var(--danger);padding:.75rem 1.5rem;border-radius:var(--radius);font-weight:600;cursor:pointer;transition:all .2s}.btn-danger-outline:hover{background:var(--danger);color:#fff}@media(max-width:768px){.settings-container{flex-direction:column}.settings-sidebar{flex-direction:row;border-right:none;border-bottom:1px solid var(--border);overflow-x:auto}}:root{--primary: #0d9488;--primary-hover: #0f766e;--secondary: #8b5cf6;--background: #f0fdf4;--surface: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--success: #10b981;--danger: #ef4444;--radius: 16px;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 10px 15px -3px rgba(13, 148, 136, .1);--shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, .1);--font-sans: "Outfit", "Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--background);color:var(--text-main);line-height:1.6}a{text-decoration:none;color:inherit}.container{max-width:1200px;margin:0 auto;padding:0 2rem}h1,h2,h3{font-weight:700;line-height:1.2}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:var(--radius);font-weight:500;cursor:pointer;transition:all .2s;border:none;outline:none}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;box-shadow:0 4px 12px #0d948833}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 17px -3px #0d94884d;filter:brightness(1.1)}.glass-card{background:#fff9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.4);box-shadow:var(--shadow-md)}.card{background:var(--surface);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:all .3s cubic-bezier(.4,0,.2,1)}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}input,select,textarea{width:100%;padding:.75rem;border-radius:var(--radius);border:1px solid var(--border);font-family:inherit;font-size:1rem;transition:border-color .2s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #6366f11a}.page-header{margin:2rem 0;display:flex;justify-content:space-between;align-items:center}.badge{padding:.25rem .75rem;border-radius:999px;font-size:.875rem;font-weight:500}.badge-admin{background:#fee2e2;color:#991b1b}.badge-prof{background:#e0e7ff;color:#3730a3}.badge-student{background:#dcfce7;color:#166534}