.spinner{width:44px;height:44px;border:3px solid var(--gray-200);border-top-color:var(--primary);border-radius:var(--radius-full);animation:spin 0.8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:9999}.modal-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(15,10,31,0.7);backdrop-filter:blur(8px);z-index:1000;opacity:0;visibility:hidden;transition:all var(--transition-base)}.modal-backdrop.active{opacity:1;visibility:visible}.modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(0.9);background:var(--white);border-radius:var(--radius-2xl);box-shadow:0 25px 50px -12px rgba(0,0,0,0.25);width:90%;max-width:520px;max-height:90vh;overflow:auto;z-index:1001;opacity:0;visibility:hidden;transition:all var(--transition-base)}.modal.active{opacity:1;visibility:visible;transform:translate(-50%,-50%) scale(1)}.modal-header{padding:var(--spacing-xl);border-bottom:1px solid var(--gray-100);display:flex;align-items:center;justify-content:space-between}.modal-title{font-size:1.375rem;font-weight:700}.modal-close{width:36px;height:36px;border:none;background:var(--gray-100);border-radius:var(--radius-full);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);color:var(--gray-500)}.modal-close:hover{background:var(--gray-200);color:var(--gray-700)}.modal-body{padding:var(--spacing-xl)}.modal-footer{padding:var(--spacing-lg) var(--spacing-xl);border-top:1px solid var(--gray-100);display:flex;justify-content:flex-end;gap:var(--spacing-md);background:var(--gray-50)}.tabs{display:flex;gap:var(--spacing-xs);background:var(--gray-100);padding:var(--spacing-xs);border-radius:var(--radius-xl);margin-bottom:var(--spacing-xl)}.tab{padding:var(--spacing-md) var(--spacing-xl);font-weight:600;color:var(--gray-500);border:none;background:none;cursor:pointer;border-radius:var(--radius-lg);transition:all var(--transition-fast)}.tab:hover{color:var(--gray-700)}.tab.active{background:var(--white);color:var(--gray-900);box-shadow:var(--shadow-sm)}.tab-content{display:none}.tab-content.active{display:block;animation:fadeIn var(--transition-base) ease}.dropdown{position:relative}.dropdown-toggle{cursor:pointer}.dropdown-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:220px;background:var(--white);border-radius:var(--radius-xl);box-shadow:0 10px 40px rgba(0,0,0,0.15);padding:var(--spacing-sm);opacity:0;visibility:hidden;transform:translateY(-10px);transition:all var(--transition-fast);z-index:100;border:1px solid var(--gray-100)}.dropdown.active .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-item{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md) var(--spacing-lg);color:var(--gray-700);border-radius:var(--radius-lg);transition:all var(--transition-fast);font-weight:500}.dropdown-item:hover{background:var(--gray-50);color:var(--primary)}.dropdown-item i{width:20px;text-align:center;color:var(--gray-400)}.dropdown-item:hover i{color:var(--primary)}.dropdown-divider{height:1px;background:var(--gray-100);margin:var(--spacing-sm) 0}.tooltip{position:relative}.tooltip::after{content:attr(data-tooltip);position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);padding:var(--spacing-sm) var(--spacing-md);background:var(--gray-900);color:var(--white);font-size:0.8125rem;white-space:nowrap;border-radius:var(--radius-md);opacity:0;visibility:hidden;transition:all var(--transition-fast);pointer-events:none;font-weight:500}.tooltip:hover::after{opacity:1;visibility:visible;transform:translateX(-50%) translateY(-4px)}.progress{height:8px;background:var(--gray-100);border-radius:var(--radius-full);overflow:hidden}.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary-start),var(--accent-pink));border-radius:var(--radius-full);transition:width var(--transition-slow) ease;position:relative}.progress-bar::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(255,255,255,0.3) 50%,rgba(255,255,255,0) 100%);animation:shimmer 2s infinite}@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}.progress-labeled{display:flex;align-items:center;gap:var(--spacing-md)}.progress-labeled .progress{flex:1}.progress-label{font-size:0.875rem;font-weight:700;color:var(--gray-700);min-width:48px;text-align:right}.avatar{width:44px;height:44px;border-radius:var(--radius-full);overflow:hidden;background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));display:flex;align-items:center;justify-content:center;color:var(--white);font-weight:700;flex-shrink:0}.avatar img{width:100%;height:100%;object-fit:cover}.avatar-sm{width:36px;height:36px;font-size:0.8125rem}.avatar-lg{width:64px;height:64px;font-size:1.5rem}.avatar-xl{width:96px;height:96px;font-size:2rem}.avatar-group{display:flex}.avatar-group .avatar{margin-left:-12px;border:3px solid var(--white);box-shadow:0 2px 8px rgba(0,0,0,0.1)}.avatar-group .avatar:first-child{margin-left:0}.rating{display:flex;gap:2px}.rating-star{color:var(--gray-200);font-size:1rem;transition:color var(--transition-fast)}.rating-star.filled{color:var(--accent-yellow)}.rating-star.half{position:relative}.rating-star.half::before{content:'★';position:absolute;left:0;width:50%;overflow:hidden;color:var(--accent-yellow)}.rating-interactive .rating-star{cursor:pointer}.rating-interactive .rating-star:hover{color:var(--accent-yellow);transform:scale(1.1)}.empty-state{text-align:center;padding:var(--spacing-4xl) var(--spacing-xl)}.empty-state-icon{width:100px;height:100px;margin:0 auto var(--spacing-xl);background:linear-gradient(135deg,rgba(32,64,192,0.1),rgba(20,184,166,0.1));border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:2.5rem;color:var(--primary)}.empty-state-title{font-size:1.5rem;margin-bottom:var(--spacing-sm)}.empty-state-text{color:var(--gray-500);margin-bottom:var(--spacing-xl);font-size:1.0625rem}.search-box{position:relative}.search-input{width:100%;padding:var(--spacing-md) var(--spacing-xl);padding-left:52px;border:2px solid var(--gray-200);border-radius:var(--radius-full);font-size:1rem;transition:all var(--transition-fast);background:var(--white)}.search-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(32,64,192,0.1)}.search-icon{position:absolute;left:var(--spacing-lg);top:50%;transform:translateY(-50%);color:var(--gray-400);font-size:1rem}.table-container{overflow-x:auto;background:var(--white);border-radius:var(--radius-2xl);box-shadow:0 4px 20px rgba(0,0,0,0.06);border:1px solid var(--gray-100)}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:var(--spacing-md) var(--spacing-lg);text-align:left}.table th{background:var(--gray-50);font-weight:700;color:var(--gray-600);font-size:0.75rem;text-transform:uppercase;letter-spacing:0.05em}.table tbody tr{border-bottom:1px solid var(--gray-100);transition:background var(--transition-fast)}.table tbody tr:hover{background:rgba(32,64,192,0.02)}.table tbody tr:last-child{border-bottom:none}.admin-users-page{max-width:min(1680px,100%)}.admin-users-page .dashboard{grid-template-columns:minmax(240px,260px) minmax(0,1fr)}.admin-users-page .dashboard-content,.admin-users-filter-card,.admin-users-table-card,.admin-users-table-body{min-width:0;max-width:100%}.admin-users-table-body{padding:0}.admin-users-table-scroll{width:100%;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}.admin-users-table{width:100%;min-width:900px;table-layout:fixed}.admin-users-table th:nth-child(1),.admin-users-table td:nth-child(1){width:20%}.admin-users-table th:nth-child(2),.admin-users-table td:nth-child(2){width:32%}.admin-users-table th:nth-child(3),.admin-users-table td:nth-child(3),.admin-users-table th:nth-child(4),.admin-users-table td:nth-child(4),.admin-users-table th:nth-child(5),.admin-users-table td:nth-child(5),.admin-users-table th:nth-child(6),.admin-users-table td:nth-child(6){width:12%}.admin-user-email{font-size:0.875rem;overflow-wrap:anywhere;word-break:break-word}.admin-user-date{font-size:0.875rem;white-space:nowrap}.admin-user-actions{flex-wrap:nowrap;white-space:nowrap}.admin-user-actions .btn-sm{width:2.25rem;min-width:2.25rem;height:2.25rem;padding:0;display:inline-flex;align-items:center;justify-content:center}@media (max-width:1280px){.admin-users-page .admin-filters-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:end}.admin-users-page .admin-filters-row .form-group{min-width:0!important}}@media (max-width:1024px){.admin-users-page .dashboard{grid-template-columns:1fr}}@media (max-width:640px){.admin-users-page .admin-filters-row{grid-template-columns:1fr}.admin-users-table{min-width:760px}}.pagination{display:flex;align-items:center;justify-content:center;gap:var(--spacing-xs);margin-top:var(--spacing-2xl)}.pagination-item{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);color:var(--gray-600);font-weight:600;transition:all var(--transition-fast);background:var(--white);border:1px solid var(--gray-200)}.pagination-item:hover{background:var(--gray-50);color:var(--gray-900);border-color:var(--gray-300)}.pagination-item.active{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white);border-color:transparent;box-shadow:0 4px 15px rgba(32,64,192,0.3)}.pagination-item.disabled{opacity:0.4;pointer-events:none}.tag-input{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border:2px solid var(--gray-200);border-radius:var(--radius-xl);min-height:54px;cursor:text;transition:all var(--transition-fast);background:var(--white)}.tag-input:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(32,64,192,0.1)}.tag-input input{border:none;outline:none;flex:1;min-width:140px;padding:var(--spacing-sm);font-size:1rem;font-family:var(--font-body)}.tag{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-md);background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white);border-radius:var(--radius-full);font-size:0.875rem;font-weight:600}.tag-remove{width:18px;height:18px;border:none;background:rgba(255,255,255,0.3);border-radius:var(--radius-full);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:0.75rem;color:var(--white);transition:background var(--transition-fast)}.tag-remove:hover{background:rgba(255,255,255,0.5)}.time-slots{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-sm)}.time-slot{padding:var(--spacing-md);border:2px solid var(--gray-200);border-radius:var(--radius-xl);text-align:center;cursor:pointer;transition:all var(--transition-fast);font-weight:600;background:var(--white)}.time-slot:hover{border-color:var(--primary);background:rgba(32,64,192,0.05)}.time-slot.selected{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));border-color:transparent;color:var(--white);box-shadow:0 4px 15px rgba(32,64,192,0.3)}.time-slot.disabled{opacity:0.4;cursor:not-allowed}.feature-card{padding:var(--spacing-2xl);text-align:center}.feature-icon{width:72px;height:72px;margin:0 auto var(--spacing-lg);border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;font-size:1.75rem}.feature-icon.purple{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white)}.feature-icon.cyan{background:linear-gradient(135deg,var(--accent-cyan),var(--accent-green));color:var(--white)}.feature-icon.orange{background:linear-gradient(135deg,var(--accent-orange),var(--accent-yellow));color:var(--white)}.feature-icon.pink{background:linear-gradient(135deg,var(--accent-pink),#F43F5E);color:var(--white)}.feature-title{font-size:1.25rem;margin-bottom:var(--spacing-sm)}.feature-text{color:var(--gray-500);font-size:1rem;line-height:1.7}.instrument-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-lg)}@media (max-width:1024px){.instrument-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width:768px){.instrument-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:480px){.instrument-grid{grid-template-columns:1fr}}.instrument-card{background:var(--white);border:2px solid var(--gray-100);border-radius:var(--radius-2xl);padding:var(--spacing-xl);text-align:center;cursor:pointer;transition:all var(--transition-base);text-decoration:none;display:block}.instrument-card:hover{border-color:var(--primary);transform:translateY(-6px);box-shadow:0 20px 40px rgba(32,64,192,0.15)}.instrument-card.selected{border-color:var(--primary);background:linear-gradient(135deg,rgba(32,64,192,0.05),rgba(20,184,166,0.05))}.instrument-icon{font-size:3rem;margin-bottom:var(--spacing-md);display:block}.instrument-name{font-weight:700;color:var(--gray-900);font-size:1.0625rem;margin-bottom:var(--spacing-xs)}.instrument-count{font-size:0.875rem;color:var(--gray-500)}.lesson-card{background:var(--white);border-radius:var(--radius-2xl);overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,0.06);display:flex;border:1px solid var(--gray-100)}.lesson-card-date{width:90px;background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-lg)}.lesson-card-day{font-size:2rem;font-weight:700;line-height:1}.lesson-card-month{font-size:0.75rem;text-transform:uppercase;letter-spacing:0.1em;opacity:0.9}.lesson-card-content{flex:1;padding:var(--spacing-lg)}.lesson-card-time{font-weight:700;color:var(--gray-900);margin-bottom:var(--spacing-xs);font-size:1.0625rem}.lesson-card-teacher{color:var(--gray-500);font-size:0.9375rem}.lesson-card-instrument{display:inline-flex;align-items:center;gap:var(--spacing-xs);margin-top:var(--spacing-sm);padding:var(--spacing-xs) var(--spacing-md);background:var(--gray-100);border-radius:var(--radius-full);font-size:0.8125rem;color:var(--gray-600);font-weight:500}.lesson-card-actions{display:flex;align-items:center;padding:var(--spacing-lg);gap:var(--spacing-sm)}.plan-card{background:var(--white);border-radius:var(--radius-2xl);overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,0.06);border:1px solid var(--gray-100)}.plan-card-header{background:linear-gradient(135deg,var(--primary-start),var(--accent-cyan));color:var(--white);padding:var(--spacing-xl)}.plan-card-title{font-size:1.25rem;margin-bottom:var(--spacing-xs);font-weight:700}.plan-card-meta{font-size:0.9375rem;opacity:0.9}.plan-card-body{padding:var(--spacing-xl)}.plan-card-progress{margin-bottom:var(--spacing-lg)}.plan-card-week{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md) 0;border-bottom:1px solid var(--gray-100)}.plan-card-week:last-child{border-bottom:none}.plan-card-week-number{width:36px;height:36px;background:var(--gray-100);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.9375rem;color:var(--gray-500);flex-shrink:0}.plan-card-week-number.current{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white);box-shadow:0 4px 10px rgba(32,64,192,0.3)}.plan-card-week-number.completed{background:var(--success);color:var(--white)}.plan-card-week-focus{flex:1;font-size:1rem}.toast-container{position:fixed;top:var(--spacing-xl);right:var(--spacing-xl);z-index:9999;display:flex;flex-direction:column;gap:var(--spacing-md)}.toast{background:var(--white);border-radius:var(--radius-xl);box-shadow:0 10px 40px rgba(0,0,0,0.15);padding:var(--spacing-lg);display:flex;align-items:flex-start;gap:var(--spacing-md);min-width:340px;max-width:420px;animation:toastIn var(--transition-base) ease;border:1px solid var(--gray-100)}@keyframes toastIn{from{opacity:0;transform:translateX(100%) scale(0.9)}to{opacity:1;transform:translateX(0) scale(1)}}.toast-icon{width:32px;height:32px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;flex-shrink:0}.toast.success .toast-icon{background:linear-gradient(135deg,var(--success),#059669);color:var(--white)}.toast.error .toast-icon{background:linear-gradient(135deg,var(--danger),#DC2626);color:var(--white)}.toast.warning .toast-icon{background:linear-gradient(135deg,var(--warning),#D97706);color:var(--white)}.toast.info .toast-icon{background:linear-gradient(135deg,var(--info),#0284C7);color:var(--white)}.toast-content{flex:1}.toast-title{font-weight:700;font-size:1rem;margin-bottom:var(--spacing-xs)}.toast-message{font-size:0.9375rem;color:var(--gray-500);line-height:1.6}.toast-close{background:none;border:none;cursor:pointer;color:var(--gray-400);padding:var(--spacing-xs);transition:color var(--transition-fast)}.toast-close:hover{color:var(--gray-600)}.calendar{background:var(--white);border-radius:var(--radius-2xl);overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,0.06);border:1px solid var(--gray-100)}.calendar-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-xl);background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white)}.calendar-title{font-size:1.25rem;font-weight:700}.calendar-nav{display:flex;gap:var(--spacing-sm)}.calendar-nav button{width:36px;height:36px;border:none;background:rgba(255,255,255,0.2);border-radius:var(--radius-full);color:var(--white);cursor:pointer;transition:background var(--transition-fast)}.calendar-nav button:hover{background:rgba(255,255,255,0.3)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr)}.calendar-day-name{padding:var(--spacing-md);text-align:center;font-weight:700;color:var(--gray-500);font-size:0.75rem;text-transform:uppercase;letter-spacing:0.05em;background:var(--gray-50)}.calendar-day{padding:var(--spacing-md);text-align:center;border:1px solid var(--gray-100);cursor:pointer;transition:all var(--transition-fast);font-weight:500}.calendar-day:hover{background:var(--gray-50)}.calendar-day.today{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white);font-weight:700}.calendar-day.selected{background:var(--primary);color:var(--white)}.calendar-day.other-month{color:var(--gray-300)}.calendar-day.has-event::after{content:'';display:block;width:6px;height:6px;background:var(--accent-cyan);border-radius:var(--radius-full);margin:var(--spacing-xs) auto 0}.cookie-banner{position:fixed;bottom:0;left:0;right:0;background:var(--white);box-shadow:0 -4px 30px rgba(0,0,0,0.15);z-index:9999;padding:var(--spacing-lg) 0;border-top:1px solid var(--gray-200);animation:slideUp 0.4s ease}@keyframes slideUp{from{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.cookie-banner-content{max-width:1200px;margin:0 auto;padding:0 var(--spacing-xl);display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-xl);flex-wrap:wrap}.cookie-text{flex:1;min-width:300px}.cookie-text h4{display:flex;align-items:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm);font-size:1.1rem;color:var(--gray-900)}.cookie-text h4 i{color:var(--accent-gold)}.cookie-text p{color:var(--gray-700);font-size:0.9375rem;line-height:1.6;margin:0}.cookie-text a{color:var(--primary);font-weight:600;text-decoration:underline;text-underline-offset:0.18em}.cookie-text a:hover{color:var(--primary-dark)}.cookie-buttons{display:flex;gap:var(--spacing-sm);flex-wrap:wrap;align-items:stretch}.cookie-buttons .btn{min-height:3.25rem;padding-inline:1.6rem;font-weight:700;letter-spacing:0.01em;border-width:1px;box-shadow:0 8px 18px rgba(15,23,42,0.08)}.cookie-buttons .btn-primary{background:linear-gradient(135deg,#1d4ed8 0%,#0891b2 100%);border-color:#1e40af;color:#f8fafc;box-shadow:0 12px 24px rgba(29,78,216,0.24)}.cookie-buttons .btn-primary:hover:not(:disabled){background:linear-gradient(135deg,#1e40af 0%,#0e7490 100%);border-color:#1e3a8a;color:#ffffff;box-shadow:0 16px 30px rgba(29,78,216,0.28)}.cookie-buttons .btn-outline{background:#ecfeff;border-color:#67e8f9;color:#0f172a}.cookie-buttons .btn-outline:hover:not(:disabled){background:#cffafe;border-color:#22d3ee;color:#082f49;box-shadow:0 14px 28px rgba(8,145,178,0.16)}.cookie-buttons .btn-ghost{background:#f8fafc;border-color:#cbd5e1;color:#334155}.cookie-buttons .btn-ghost:hover:not(:disabled){background:#eef2ff;border-color:#94a3b8;color:#0f172a}.cookie-buttons .btn:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(34,211,238,0.22),0 12px 24px rgba(15,23,42,0.16)}#cookie-settings-modal{position:fixed;top:0;left:0;right:0;bottom:0;z-index:10000}.cookie-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:10000;display:none}.cookie-modal-overlay.active{display:block}.cookie-modal-backdrop{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(15,10,31,0.7);backdrop-filter:blur(8px)}.cookie-modal-content{position:relative;z-index:1;max-width:600px;margin:10% auto;animation:modalSlideIn 0.3s ease}.icon-warning{color:var(--warning)}.icon-primary{color:var(--primary)}.cookie-modal-body{padding:var(--spacing-xl)}.cookie-modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg)}.cookie-modal-title{margin:0}.cookie-modal-close{padding:var(--spacing-xs)}.cookie-option{padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-md)}.cookie-option-last{margin-bottom:var(--spacing-lg)}.cookie-option-row{display:flex;justify-content:space-between;align-items:center}.cookie-option-description{margin:0;font-size:0.875rem}.cookie-toggle{width:20px;height:20px;accent-color:var(--accent-cyan)}.cookie-modal-actions{display:flex;gap:var(--spacing-md);justify-content:flex-end}@keyframes modalSlideIn{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}#cookie-settings-modal .modal-backdrop{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(15,10,31,0.7);backdrop-filter:blur(8px)}.feature-icon.coral{background:linear-gradient(135deg,var(--accent-coral,#FF6B6B),#e74c3c);color:var(--white)}.feature-icon.gold{background:linear-gradient(135deg,var(--accent-gold,#F59E0B),#f39c12);color:var(--white)}.feature-icon.teal{background:linear-gradient(135deg,var(--accent-teal,#14B8A6),#16a085);color:var(--white)}@media (max-width:768px){.cookie-banner-content{flex-direction:column;text-align:center}.cookie-buttons{width:100%;justify-content:center}.cookie-buttons .btn{flex:1;min-width:120px}}.collab-ai-wizard{background:var(--white);border-radius:var(--radius-2xl);box-shadow:0 25px 50px -12px rgba(0,0,0,0.25);overflow:hidden;display:flex;flex-direction:column;max-height:80vh;min-height:400px}.collab-ai-header{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white);padding:var(--spacing-lg) var(--spacing-xl);display:flex;align-items:center;justify-content:space-between}.collab-ai-title{font-size:1.125rem;font-weight:700;margin:0;display:flex;align-items:center;gap:var(--spacing-sm)}.collab-ai-title i{font-size:1.25rem}.collab-ai-close{width:36px;height:36px;border:none;background:rgba(255,255,255,0.2);border-radius:var(--radius-full);color:var(--white);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background var(--transition-fast)}.collab-ai-close:hover{background:rgba(255,255,255,0.3)}.collab-ai-mode-selector{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-sm);padding:var(--spacing-md);background:var(--gray-50);border-bottom:1px solid var(--gray-100)}.collab-ai-mode-btn{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-md);border:2px solid var(--gray-200);background:var(--white);border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-fast);text-align:center}.collab-ai-mode-btn i{font-size:1.25rem;color:var(--gray-400)}.collab-ai-mode-btn span{font-weight:600;color:var(--gray-700);font-size:0.9375rem}.collab-ai-mode-btn small{font-size:0.75rem;color:var(--gray-500)}.collab-ai-mode-btn:hover{border-color:var(--primary);background:rgba(32,64,192,0.05)}.collab-ai-mode-btn.active{border-color:var(--primary);background:linear-gradient(135deg,rgba(32,64,192,0.1),rgba(20,184,166,0.1))}.collab-ai-mode-btn.active i{color:var(--primary)}.collab-ai-mode-btn.active span{color:var(--primary)}.collab-ai-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.collab-ai-conversation{flex:1;overflow-y:auto;padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-md)}.collab-ai-message{display:flex;gap:var(--spacing-md);max-width:90%;animation:collabFadeIn 0.3s ease}@keyframes collabFadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.collab-ai-message.user{align-self:flex-end;flex-direction:row-reverse}.collab-ai-message-avatar{width:36px;height:36px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:0.9375rem}.collab-ai-message.assistant .collab-ai-message-avatar{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white)}.collab-ai-message.user .collab-ai-message-avatar{background:var(--gray-200);color:var(--gray-600)}.collab-ai-message-content{padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-xl);font-size:0.9375rem;line-height:1.6}.collab-ai-message.assistant .collab-ai-message-content{background:var(--gray-100);color:var(--gray-800);border-bottom-left-radius:var(--radius-sm)}.collab-ai-message.user .collab-ai-message-content{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white);border-bottom-right-radius:var(--radius-sm)}.collab-ai-input-area{padding:var(--spacing-md) var(--spacing-lg);border-top:1px solid var(--gray-100);background:var(--gray-50)}.collab-ai-choices{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.collab-ai-choice-btn{padding:var(--spacing-sm) var(--spacing-lg);border:2px solid var(--gray-200);background:var(--white);border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-fast);font-weight:500;font-size:0.9375rem;color:var(--gray-700)}.collab-ai-choice-btn:hover{border-color:var(--primary);background:rgba(32,64,192,0.05);color:var(--primary)}.collab-ai-choice-btn.collab-ai-custom-btn{border-style:dashed;color:var(--gray-500)}.collab-ai-choice-btn.collab-ai-custom-btn:hover{color:var(--primary)}.collab-ai-custom-input{display:flex;gap:var(--spacing-sm);margin-top:var(--spacing-md)}.collab-ai-custom-input input{flex:1}.collab-ai-text-input{display:flex;gap:var(--spacing-sm);align-items:flex-end}.collab-ai-text-input textarea{flex:1;resize:none}.collab-ai-text-input button{flex-shrink:0;width:44px;height:44px;padding:0;display:flex;align-items:center;justify-content:center}.collab-ai-footer{padding:var(--spacing-md) var(--spacing-xl);border-top:1px solid var(--gray-100);background:var(--white)}.collab-ai-progress{height:4px;background:var(--gray-200);border-radius:var(--radius-full);margin-bottom:var(--spacing-md);overflow:hidden}.collab-ai-progress-bar{height:100%;background:linear-gradient(90deg,var(--primary-start),var(--accent-pink));border-radius:var(--radius-full);transition:width 0.5s ease;width:0%}.collab-ai-actions{display:flex;justify-content:flex-end;gap:var(--spacing-sm)}.collab-ai-typing{display:flex;gap:4px;padding:var(--spacing-md) var(--spacing-lg)}.collab-ai-typing span{width:8px;height:8px;background:var(--gray-400);border-radius:var(--radius-full);animation:typingBounce 1.4s infinite ease-in-out both}.collab-ai-typing span:nth-child(1){animation-delay:-0.32s}.collab-ai-typing span:nth-child(2){animation-delay:-0.16s}@keyframes typingBounce{0%,80%,100%{transform:scale(0.6);opacity:0.5}40%{transform:scale(1);opacity:1}}.collab-ai-result{background:var(--gray-50);border-radius:var(--radius-xl);padding:var(--spacing-lg);margin-top:var(--spacing-md);animation:collabFadeIn 0.3s ease}.collab-ai-result-header{display:flex;align-items:center;gap:var(--spacing-sm);color:var(--success);font-weight:600;margin-bottom:var(--spacing-md)}.collab-ai-result-header i{font-size:1.25rem}.collab-ai-result-content{background:var(--white);border-radius:var(--radius-lg);padding:var(--spacing-lg);margin-bottom:var(--spacing-md);border:1px solid var(--gray-200);max-height:200px;overflow-y:auto}.collab-ai-result-content p{margin:0 0 var(--spacing-sm) 0;line-height:1.7}.collab-ai-result-content ul{margin:0;padding-left:var(--spacing-lg)}.collab-ai-result-content li{margin-bottom:var(--spacing-xs)}.collab-ai-result-actions{display:flex;gap:var(--spacing-sm);justify-content:flex-end}.collab-ai-error{display:flex;align-items:center;gap:var(--spacing-sm);background:rgba(239,68,68,0.1);color:var(--danger);padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-lg);font-size:0.9375rem;animation:collabFadeIn 0.3s ease}.collab-ai-resume-dialog{padding:var(--spacing-lg)}.collab-ai-resume-actions{display:flex;gap:var(--spacing-sm);margin-top:var(--spacing-md)}.preview-learning-plan,.preview-lesson-prep,.preview-warmup,.preview-tips{font-size:0.9375rem}.preview-overview{margin-bottom:var(--spacing-md);font-style:italic}.preview-weeks{border-left:3px solid var(--primary);padding-left:var(--spacing-md)}.preview-week{margin-bottom:var(--spacing-md)}.preview-week:last-child{margin-bottom:0}.preview-more{color:var(--gray-500);font-style:italic;margin-top:var(--spacing-sm)}.preview-section{margin-bottom:var(--spacing-sm)}.collab-ai-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(15,10,31,0.7);backdrop-filter:blur(8px);z-index:1000;display:flex;align-items:center;justify-content:center;padding:var(--spacing-xl);opacity:0;visibility:hidden;transition:all var(--transition-base)}.collab-ai-modal.active{opacity:1;visibility:visible}.collab-ai-modal .collab-ai-wizard{width:100%;max-width:600px;transform:scale(0.9);transition:transform var(--transition-base)}.collab-ai-modal.active .collab-ai-wizard{transform:scale(1)}@media (max-width:768px){.collab-ai-mode-selector{grid-template-columns:1fr}.collab-ai-modal{padding:var(--spacing-md)}.collab-ai-wizard{max-height:90vh}.collab-ai-choices{flex-direction:column}.collab-ai-choice-btn{width:100%;text-align:center}}.beta-feedback-btn{position:fixed;bottom:88px;right:24px;z-index:900;display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);background:linear-gradient(135deg,rgba(13,148,136,0.18) 0%,rgba(34,211,238,0.12) 100%);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);color:var(--text-primary);border:1px solid rgba(13,148,136,0.3);border-radius:var(--radius-full);font-weight:600;font-size:0.9375rem;cursor:pointer;box-shadow:0 4px 16px rgba(0,0,0,0.15),inset 0 1px 0 rgba(255,255,255,0.1);transition:all var(--transition-base)}.beta-feedback-btn:hover{transform:translateY(-2px) scale(1.02);background:linear-gradient(135deg,rgba(13,148,136,0.28) 0%,rgba(34,211,238,0.2) 100%);border-color:rgba(13,148,136,0.45);box-shadow:0 8px 24px rgba(13,148,136,0.12),inset 0 1px 0 rgba(255,255,255,0.15)}.beta-feedback-btn:active{transform:translateY(0) scale(0.98)}.beta-feedback-btn i{font-size:1.125rem}.scroll-top-btn{position:fixed;right:24px;bottom:156px;z-index:899;width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--glass-bg),rgba(51,65,85,0.72));backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:var(--text-secondary);border:1px solid var(--glass-border);border-radius:var(--radius-full);font-size:1rem;cursor:pointer;box-shadow:0 4px 15px rgba(0,0,0,0.3);transition:all var(--transition-base);opacity:0;pointer-events:none}.scroll-top-btn.visible{opacity:1;pointer-events:auto}.scroll-top-btn:hover{transform:translateY(-3px);background:linear-gradient(135deg,var(--primary),var(--accent-petrol));color:var(--white);border-color:transparent;box-shadow:0 8px 25px rgba(30,64,175,0.4)}.feedback-modal{max-width:680px;max-height:85vh;display:flex;flex-direction:column}.feedback-modal .modal-header{flex-shrink:0}.feedback-modal .modal-body{flex:1;overflow-y:auto;overflow-x:hidden;min-height:300px;max-height:calc(85vh - 160px)}.feedback-modal .modal-footer{flex-shrink:0}.feedback-intro{color:var(--text-muted);font-size:0.9375rem;margin-bottom:var(--spacing-lg);padding:var(--spacing-md);background:linear-gradient(135deg,rgba(var(--primary-rgb,99,102,241),0.08) 0%,rgba(var(--primary-rgb,99,102,241),0.02) 100%);border-radius:var(--radius-lg);border-left:3px solid var(--primary)}.feedback-form .form-group{margin-bottom:var(--spacing-lg)}.feedback-form .form-label{font-weight:600;color:var(--gray-700);margin-bottom:var(--spacing-sm);display:block}.feedback-form .form-hint{color:var(--text-muted);font-size:0.8125rem;margin-top:var(--spacing-xs);display:block}.feedback-form textarea.form-control{resize:vertical;min-height:120px}.feedback-success{text-align:center;padding:var(--spacing-xl)}.feedback-success .success-icon{width:72px;height:72px;margin:0 auto var(--spacing-lg);background:linear-gradient(135deg,#10b981 0%,#059669 100%);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;animation:successPop 0.4s cubic-bezier(0.175,0.885,0.32,1.275)}.feedback-success .success-icon i{font-size:2rem;color:var(--white)}.feedback-success h4{color:var(--gray-900);margin-bottom:var(--spacing-sm)}.feedback-success p{color:var(--text-muted);margin-bottom:var(--spacing-xs)}.feedback-issue-info{font-size:0.875rem;color:var(--primary);font-weight:500}@keyframes successPop{0%{transform:scale(0);opacity:0}100%{transform:scale(1);opacity:1}}.feedback-error{padding:var(--spacing-lg);background:rgba(239,68,68,0.1);border-radius:var(--radius-lg);border:1px solid rgba(239,68,68,0.3);margin-top:var(--spacing-md)}.feedback-error .error-icon{width:48px;height:48px;margin:0 auto var(--spacing-md);background:#ef4444;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center}.feedback-error .error-icon i{font-size:1.5rem;color:var(--white)}.feedback-error p{color:#dc2626;text-align:center;margin:0;font-weight:500}.feedback-error small{color:#b91c1c;font-weight:400}@media (max-width:640px){.beta-feedback-btn{bottom:16px;right:16px;padding:var(--spacing-md)}.beta-feedback-label{display:none}.beta-feedback-btn i{font-size:1.25rem}.scroll-top-btn{right:16px;bottom:136px;width:44px;height:44px}.feedback-modal{width:95%;max-width:95%;max-height:90vh}.feedback-modal .modal-body{padding:var(--spacing-md);min-height:250px;max-height:calc(90vh - 140px)}}@media (min-width:641px) and (max-width:768px){.feedback-modal{max-width:600px;max-height:85vh}.feedback-modal .modal-body{max-height:calc(85vh - 150px)}}.screenshot-preview-container{margin-top:var(--spacing-md);border:2px solid var(--primary-light);border-radius:var(--radius-lg);overflow:hidden;background:var(--gray-50);animation:slideDown 0.3s ease}@keyframes slideDown{from{opacity:0;transform:translateY(-10px);max-height:0}to{opacity:1;transform:translateY(0);max-height:500px}}.screenshot-preview-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm) var(--spacing-md);background:linear-gradient(135deg,rgba(32,64,192,0.1),rgba(32,64,192,0.1));border-bottom:1px solid var(--gray-200);font-size:0.875rem;font-weight:600;color:var(--primary-dark)}.screenshot-preview-header span{display:flex;align-items:center;gap:var(--spacing-xs)}.screenshot-preview-header i{color:var(--primary)}.screenshot-preview-image{padding:var(--spacing-md);text-align:center;background:var(--white)}.screenshot-preview-image img{max-width:100%;max-height:200px;border-radius:var(--radius-md);box-shadow:0 4px 12px rgba(0,0,0,0.1);object-fit:contain}.screenshot-processing{display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-md);background:linear-gradient(135deg,rgba(32,64,192,0.05),rgba(32,64,192,0.05));color:var(--primary);font-size:0.875rem;font-weight:500}.screenshot-processing i{font-size:1rem}.screenshot-analysis{padding:var(--spacing-md);background:var(--white);border-top:1px solid var(--gray-200)}.screenshot-analysis-header{display:flex;align-items:center;gap:var(--spacing-xs);font-size:0.75rem;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:var(--spacing-sm)}#screenshot-analysis-text{font-size:0.875rem;color:var(--gray-700);line-height:1.6;white-space:pre-wrap;max-height:150px;overflow-y:auto}.ai-screenshot-hint{margin-top:var(--spacing-sm);font-size:0.8125rem;color:var(--amber-600);background:rgba(245,158,11,0.1);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);border-left:3px solid var(--amber-500)}.ai-screenshot-hint i{color:var(--amber-500)}@media (max-width:640px){.screenshot-preview-image img{max-height:150px}#screenshot-analysis-text{max-height:100px}}.feedback-mode-selection{text-align:center}.feedback-mode-buttons{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-md);margin-top:var(--spacing-lg)}.feedback-mode-btn{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-xl);border:2px solid var(--gray-200);background:var(--white);border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-fast);text-align:center}.feedback-mode-btn i{font-size:2rem;color:var(--primary);margin-bottom:var(--spacing-xs)}.feedback-mode-btn .mode-title{font-weight:700;color:var(--gray-900);font-size:1rem}.feedback-mode-btn .mode-desc{font-size:0.8125rem;color:var(--gray-500);line-height:1.4}.feedback-mode-btn:hover{border-color:var(--primary);background:rgba(32,64,192,0.05);transform:translateY(-2px);box-shadow:0 8px 20px rgba(32,64,192,0.15)}.ai-feedback-header,.simple-feedback-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--gray-100)}.ai-progress{font-size:0.875rem;color:var(--gray-500);font-weight:500}.ai-conversation{min-height:180px;max-height:none;overflow-y:visible;padding:var(--spacing-md);background:var(--gray-50);border-radius:var(--radius-lg);margin-bottom:var(--spacing-md)}.ai-message{display:flex;gap:var(--spacing-md);margin-bottom:var(--spacing-md);animation:aiFadeIn 0.3s ease}@keyframes aiFadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.ai-message.assistant{flex-direction:row}.ai-message.user{flex-direction:row-reverse}.ai-message-avatar{width:32px;height:32px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:0.875rem}.ai-message.assistant .ai-message-avatar{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white)}.ai-message.user .ai-message-avatar{background:var(--gray-200);color:var(--gray-600)}.ai-message-content{max-width:80%;padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-xl);font-size:0.9375rem;line-height:1.6}.ai-message.assistant .ai-message-content{background:var(--white);color:var(--gray-800);border-bottom-left-radius:var(--radius-sm);box-shadow:0 2px 8px rgba(0,0,0,0.06)}.ai-message.user .ai-message-content{background:linear-gradient(135deg,var(--primary-start),var(--accent-pink));color:var(--white);border-bottom-right-radius:var(--radius-sm)}.ai-choices{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);margin-top:var(--spacing-md)}.ai-choice-btn{padding:var(--spacing-sm) var(--spacing-lg);border:2px solid var(--gray-200);background:var(--white);border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-fast);font-weight:500;font-size:0.9375rem;color:var(--gray-700)}.ai-choice-btn:hover{border-color:var(--primary);background:rgba(32,64,192,0.05);color:var(--primary)}.ai-choice-btn.custom-choice{border-style:dashed;color:var(--gray-500)}.ai-choice-btn.custom-choice:hover{color:var(--primary)}.ai-choice-btn.preselected{border-color:var(--success);background:rgba(16,185,129,0.08);color:var(--success);position:relative}.ai-choice-btn.preselected small{font-size:0.7rem;opacity:0.8;display:block;margin-top:2px}.ai-choice-btn:disabled{opacity:0.5;cursor:not-allowed}.ai-description-input{margin-top:var(--spacing-lg)}.ai-description-input textarea{resize:vertical;min-height:100px}.ai-loading{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-lg);background:var(--gray-50);border-radius:var(--radius-lg);color:var(--gray-600);font-weight:500}.ai-loading i{font-size:1.25rem;color:var(--primary)}.ai-feedback-preview{margin-top:var(--spacing-lg)}.ai-feedback-preview h4{display:flex;align-items:center;gap:var(--spacing-sm);color:var(--success);font-size:1rem;margin-bottom:var(--spacing-md)}.ai-feedback-preview h4 i{font-size:1.125rem}.ai-preview-content{background:var(--gray-50);border-radius:var(--radius-lg);padding:var(--spacing-lg);border:1px solid var(--gray-200)}.ai-preview-content h5{font-size:1rem;color:var(--gray-900);margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--gray-200)}.ai-preview-content .preview-section{margin-bottom:var(--spacing-md)}.ai-preview-content .preview-label{font-weight:600;color:var(--gray-600);font-size:0.8125rem;text-transform:uppercase;letter-spacing:0.05em;margin-bottom:var(--spacing-xs)}.ai-preview-content .preview-text{color:var(--gray-800);font-size:0.9375rem;line-height:1.6}.ai-preview-content .preview-steps{list-style:decimal;padding-left:var(--spacing-lg);margin:var(--spacing-sm) 0}.ai-preview-content .preview-steps li{margin-bottom:var(--spacing-xs);color:var(--gray-700)}.ai-custom-input-container{margin-top:var(--spacing-md);display:flex;gap:var(--spacing-sm);align-items:center;flex-wrap:wrap}.ai-custom-input-container input{flex:1;min-width:200px}.ai-custom-input-container .btn{display:flex;align-items:center;gap:var(--spacing-xs);white-space:nowrap}.ai-custom-input-container .btn-sm{padding:var(--spacing-sm) var(--spacing-md)}.ai-custom-submit{background:var(--primary);border-color:var(--primary)}.ai-custom-submit:hover{background:var(--primary-dark);border-color:var(--primary-dark)}@media (max-width:640px){.feedback-mode-buttons{grid-template-columns:1fr}.feedback-mode-btn{padding:var(--spacing-lg)}.ai-choices{flex-direction:column}.ai-choice-btn{width:100%;text-align:center}.ai-message-content{max-width:85%}}.ai-initial-description{margin-bottom:var(--spacing-lg)}.ai-description-input-area{margin-top:var(--spacing-md)}.ai-description-input-area textarea{resize:vertical;min-height:80px;border:2px solid var(--gray-200);border-radius:var(--radius-lg);transition:border-color var(--transition-fast)}.ai-description-input-area textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(32,64,192,0.1)}.classification-card{background:linear-gradient(135deg,rgba(32,64,192,0.08) 0%,rgba(20,184,166,0.05) 100%);border:1px solid rgba(32,64,192,0.2);border-radius:var(--radius-xl);padding:var(--spacing-lg);margin-bottom:var(--spacing-lg);animation:fadeSlideIn 0.4s ease}@keyframes fadeSlideIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.classification-header{display:flex;align-items:center;gap:var(--spacing-sm);color:var(--gray-600);font-size:0.875rem;margin-bottom:var(--spacing-sm)}.classification-header i{color:var(--primary)}.classification-type{margin-bottom:var(--spacing-md)}.type-badge{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-full);font-weight:700;font-size:1rem}.type-badge.type-bug{background:linear-gradient(135deg,#fee2e2 0%,#fecaca 100%);color:#dc2626;border:1px solid #fca5a5}.type-badge.type-feature{background:linear-gradient(135deg,#dbeafe 0%,#bfdbfe 100%);color:#2563eb;border:1px solid #93c5fd}.type-badge.type-improvement{background:linear-gradient(135deg,#eff6ff 0%,#dbeafe 100%);color:#2040c0;border:1px solid #93c5fd}.type-badge.type-usability{background:linear-gradient(135deg,#fef3c7 0%,#fde68a 100%);color:#d97706;border:1px solid #fcd34d}.classification-actions{display:flex;align-items:center;gap:var(--spacing-sm)}.classification-hint{font-size:0.8125rem;color:var(--gray-500)}.type-change-options{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:1px solid rgba(32,64,192,0.15);animation:fadeIn 0.3s ease}.type-option{padding:var(--spacing-sm) var(--spacing-md);border:2px solid var(--gray-200);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast);font-size:0.875rem;font-weight:500;background:var(--white)}.type-option:hover{border-color:var(--primary);background:rgba(32,64,192,0.05);transform:translateY(-1px)}.type-option[data-type="bug"]:hover{border-color:#dc2626;background:rgba(220,38,38,0.05)}.type-option[data-type="feature"]:hover{border-color:#2563eb;background:rgba(37,99,235,0.05)}.type-option[data-type="improvement"]:hover{border-color:#2040c0;background:rgba(32,64,192,0.05)}.type-option[data-type="usability"]:hover{border-color:#d97706;background:rgba(217,119,6,0.05)}.preview-edit-section{margin-top:var(--spacing-lg);padding:var(--spacing-lg);background:var(--white);border:2px dashed var(--gray-200);border-radius:var(--radius-lg);animation:fadeIn 0.3s ease}.preview-edit-section .form-label{font-weight:600;font-size:0.875rem;color:var(--gray-600)}.preview-edit-section input,.preview-edit-section textarea{border:2px solid var(--gray-200);border-radius:var(--radius-md)}.preview-edit-section input:focus,.preview-edit-section textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(32,64,192,0.1)}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@media (max-width:640px){.classification-card{padding:var(--spacing-md)}.type-change-options{flex-direction:column}.type-option{width:100%;text-align:center}.classification-actions{flex-direction:column;align-items:flex-start}}.learning-plan-card{max-width:700px;margin:0 auto;margin-bottom:var(--spacing-xl)}.learning-plan-card-body{padding:var(--spacing-xl)}.learning-plan-title{font-size:1.25rem;margin-bottom:var(--spacing-lg);text-align:center}.learning-plan-mode-grid{gap:var(--spacing-lg)}.mode-card{padding:var(--spacing-xl);text-align:center;cursor:pointer;transition:all var(--transition-fast)}.mode-card-primary{border:2px solid var(--primary);background:linear-gradient(135deg,rgba(32,64,192,0.05),rgba(20,184,166,0.05))}.mode-card-secondary{border:2px solid var(--gray-200)}.mode-card-icon{font-size:2.5rem;margin-bottom:var(--spacing-md)}.mode-card-title{margin-bottom:var(--spacing-sm)}.mode-card-desc{color:var(--gray-600);font-size:0.9375rem;margin:0}.duration-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-md)}.duration-card{padding:var(--spacing-md);cursor:pointer;text-align:center;transition:all var(--transition-fast)}.duration-card:hover{transform:translateY(-2px)}.duration-card-selected{border-color:var(--primary);background:rgba(107,70,193,0.05)}.duration-radio{display:none}@media (max-width:768px){.learning-plan-card{max-width:100%;margin-left:0;margin-right:0;border-radius:var(--radius-lg)}.learning-plan-card-body{padding:var(--spacing-md)}.learning-plan-title{font-size:1.125rem}.learning-plan-mode-grid{gap:var(--spacing-md)}.mode-card{padding:var(--spacing-md)}.mode-card-icon{font-size:2rem}.mode-card-title{font-size:1rem}.mode-card-desc{font-size:0.875rem}.duration-grid{grid-template-columns:repeat(2,1fr);gap:var(--spacing-sm)}.duration-card{padding:var(--spacing-sm)}}@media (max-width:480px){.learning-plan-card{border-radius:var(--radius-md)}.learning-plan-card-body{padding:var(--spacing-sm)}.learning-plan-title{font-size:1rem;margin-bottom:var(--spacing-md)}.learning-plan-mode-grid{grid-template-columns:1fr;gap:var(--spacing-sm)}.mode-card{padding:var(--spacing-md)}.mode-card-icon{font-size:1.75rem;margin-bottom:var(--spacing-sm)}.mode-card-title{font-size:0.9375rem;margin-bottom:var(--spacing-xs)}.mode-card-desc{font-size:0.8125rem;line-height:1.4}.duration-grid{grid-template-columns:repeat(2,1fr)}.duration-card{padding:var(--spacing-sm);font-size:0.875rem}.learning-plan-card .flex.gap-2{flex-direction:column;gap:var(--spacing-sm)}.learning-plan-card .flex.gap-2 .btn{width:100%;flex:none}#loading-overlay .alert{padding:var(--spacing-md)}#loading-overlay strong{font-size:0.9375rem}#loading-overlay p{font-size:0.8125rem}}.nav-messages-link{position:relative;display:inline-flex;align-items:center;gap:var(--spacing-xs)}.nav-messages-badge{position:absolute;top:-6px;right:-10px;min-width:18px;height:18px;padding:0 5px;font-size:0.6875rem;font-weight:700;color:var(--white);background:linear-gradient(135deg,var(--accent-coral,#FF6B6B),#e74c3c);border-radius:var(--radius-full);display:inline-flex;align-items:center;justify-content:center;animation:badgePulse 2s ease-in-out infinite;box-shadow:0 2px 8px rgba(231,76,60,0.4)}@keyframes badgePulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}.sidebar-nav-link{position:relative}.sidebar-messages-badge{position:absolute;right:var(--spacing-md);top:50%;transform:translateY(-50%);min-width:20px;height:20px;padding:0 6px;font-size:0.75rem;font-weight:700;color:var(--white);background:linear-gradient(135deg,var(--accent-coral,#FF6B6B),#e74c3c);border-radius:var(--radius-full);display:inline-flex;align-items:center;justify-content:center;animation:badgePulse 2s ease-in-out infinite}.floating-messages-btn{position:fixed;bottom:90px;right:24px;z-index:899;width:56px;height:56px;background:linear-gradient(135deg,var(--primary) 0%,var(--accent-pink) 100%);color:var(--white);border:none;border-radius:var(--radius-full);display:none;align-items:center;justify-content:center;font-size:1.5rem;cursor:pointer;box-shadow:0 4px 20px rgba(32,64,192,0.4),0 2px 8px rgba(0,0,0,0.15);transition:all var(--transition-base);text-decoration:none}.floating-messages-btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 6px 28px rgba(32,64,192,0.5),0 4px 12px rgba(0,0,0,0.2)}.floating-messages-btn:active{transform:translateY(0) scale(0.98)}.floating-messages-badge{position:absolute;top:-4px;right:-4px;min-width:22px;height:22px;padding:0 6px;font-size:0.75rem;font-weight:700;color:var(--white);background:linear-gradient(135deg,var(--accent-coral,#FF6B6B),#e74c3c);border-radius:var(--radius-full);display:none;align-items:center;justify-content:center;border:2px solid var(--white);box-shadow:0 2px 8px rgba(231,76,60,0.5)}@media (max-width:768px){.floating-messages-btn.authenticated{display:flex}}.recent-messages-widget{background:var(--white);border-radius:var(--radius-2xl);overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,0.06);border:1px solid var(--gray-100)}.recent-messages-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--gray-100);background:linear-gradient(135deg,rgba(32,64,192,0.05),rgba(20,184,166,0.03))}.recent-messages-header h3{font-size:1rem;margin:0;display:flex;align-items:center;gap:var(--spacing-sm)}.recent-messages-header h3 i{color:var(--primary)}.recent-message-item{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--gray-100);text-decoration:none;color:inherit;transition:background 0.2s}.recent-message-item:hover{background:var(--gray-50)}.recent-message-item:last-child{border-bottom:none}.recent-message-item.unread{background:rgba(32,64,192,0.05)}.recent-message-item.unread:hover{background:rgba(32,64,192,0.08)}.recent-message-content{flex:1;min-width:0}.recent-message-header{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:2px}.recent-message-sender{font-weight:600;font-size:0.9375rem;color:var(--gray-900)}.recent-message-time{font-size:0.75rem;color:var(--gray-500);flex-shrink:0}.recent-message-preview{margin:0;font-size:0.875rem;color:var(--gray-600);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.recent-message-item.unread .recent-message-sender{color:var(--primary)}.recent-message-item.unread .recent-message-preview{font-weight:500;color:var(--gray-800)}.recent-messages-empty{padding:var(--spacing-xl);text-align:center;color:var(--gray-500)}.recent-messages-empty i{font-size:2rem;color:var(--gray-300);margin-bottom:var(--spacing-sm);display:block}.message-teacher-btn{display:inline-flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);background:var(--white);border:2px solid var(--primary);color:var(--primary);border-radius:var(--radius-full);font-weight:600;font-size:0.9375rem;cursor:pointer;transition:all var(--transition-fast);text-decoration:none}.message-teacher-btn:hover{background:var(--primary);color:var(--white);transform:translateY(-2px);box-shadow:0 4px 15px rgba(32,64,192,0.3)}.message-teacher-btn i{font-size:1rem}.message-btn-inline{padding:var(--spacing-sm) var(--spacing-md);font-size:0.875rem;border-width:1px}.billing-recovery-alert{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:var(--spacing-md);padding-right:clamp(var(--spacing-lg),24vw,22rem)}.billing-recovery-alert>div{min-width:0}.billing-portal-form{margin:0;flex:0 0 auto}.billing-recovery-alert .billing-portal-form{grid-column:2;justify-self:start;margin-left:0}.billing-portal-form .btn{white-space:normal}@media (max-width:720px){.billing-recovery-alert{align-items:flex-start;grid-template-columns:auto minmax(0,1fr);padding-right:var(--spacing-lg)}.billing-portal-form,.billing-portal-form .btn{width:100%}.billing-recovery-alert .billing-portal-form{margin-left:0}}