@import"https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap";:root{--font-sans: "Nunito", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--bg-app: #f1f5f9;--bg-gradient: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);--bg-card: #ffffff;--bg-card-hover: #ffffff;--bg-sidebar: #f8fafc;--bg-input: #ffffff;--btn-secondary-hover: #e2e8f0;--bg-todo-item: #ffffff;--bg-todo-item-hover: #f8fafc;--bg-chapter-header: #f1f5f9;--bg-chapter-header-hover: #e2e8f0;--bg-chapter-body: #ffffff;--bg-master-item: #f8fafc;--bg-master-item-hover: #f1f5f9;--primary: #4f46e5;--primary-hover: #4338ca;--primary-glow: rgba(79, 70, 229, .1);--success: #10b981;--success-hover: #059669;--success-glow: rgba(16, 185, 129, .08);--warning: #f59e0b;--danger: #ef4444;--danger-hover: #dc2626;--danger-glow: rgba(239, 68, 68, .08);--text-main: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--border-glass: #e2e8f0;--border-glass-active: #cbd5e1;--border-focus: #4f46e5;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .08), 0 2px 4px -2px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .05);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--transition-fast: .15s ease;--transition-normal: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--bg-app: #080b11;--bg-gradient: linear-gradient(135deg, #090e1a 0%, #05070c 100%);--bg-card: rgba(16, 22, 35, .7);--bg-card-hover: rgba(22, 31, 50, .85);--bg-sidebar: rgba(11, 16, 26, .6);--bg-input: rgba(0, 0, 0, .25);--btn-secondary-hover: rgba(255, 255, 255, .03);--bg-todo-item: rgba(16, 22, 35, .4);--bg-todo-item-hover: rgba(22, 31, 50, .5);--bg-chapter-header: rgba(22, 31, 50, .4);--bg-chapter-header-hover: rgba(22, 31, 50, .6);--bg-chapter-body: rgba(11, 16, 26, .3);--bg-master-item: rgba(255, 255, 255, .02);--bg-master-item-hover: rgba(255, 255, 255, .04);--primary: #5c62ec;--primary-hover: #484edf;--primary-glow: rgba(92, 98, 236, .35);--success: #10b981;--success-hover: #059669;--success-glow: rgba(16, 185, 129, .2);--warning: #f59e0b;--danger: #ef4444;--danger-hover: #dc2626;--danger-glow: rgba(239, 68, 68, .25);--text-main: #f3f4f6;--text-secondary: #9ca3af;--text-muted: #6b7280;--border-glass: rgba(255, 255, 255, .08);--border-glass-active: rgba(255, 255, 255, .15);--border-focus: rgba(92, 98, 236, .5);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 8px 24px rgba(0, 0, 0, .35);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .5)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-app);background-image:var(--bg-gradient);color:var(--text-main);min-height:100vh;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#0000001a}::-webkit-scrollbar-thumb{background:var(--border-glass-active);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--primary)}.app-container{min-height:100vh;display:flex;flex-direction:column}.glass-card{background:var(--bg-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-glass);border-radius:var(--radius-md);padding:1.5rem;box-shadow:var(--shadow-md);transition:transform var(--transition-normal),border-color var(--transition-normal),box-shadow var(--transition-normal)}.glass-card.hoverable:hover{transform:translateY(-2px);border-color:var(--border-glass-active);box-shadow:var(--shadow-lg);background:var(--bg-card-hover)}h1,h2,h3,h4,h5,h6{font-weight:700;letter-spacing:-.02em}.app-header{background:var(--bg-card);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-glass);position:sticky;top:0;z-index:100;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.brand{display:flex;align-items:center;gap:.75rem;text-decoration:none}.brand-icon{background:linear-gradient(135deg,var(--primary) 0%,#8b5cf6 100%);width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 4px 12px var(--primary-glow)}.brand-name{font-size:1.35rem;font-weight:800;background:linear-gradient(to right,var(--text-main),var(--primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.user-profile-menu{display:flex;align-items:center;gap:1rem}.user-badge{background:var(--border-glass-active);padding:.35rem .85rem;border-radius:9999px;font-size:.875rem;font-weight:500;display:flex;align-items:center;gap:.5rem}.form-group{margin-bottom:1.25rem}.form-label{display:block;font-size:.875rem;font-weight:500;color:var(--text-secondary);margin-bottom:.5rem}.form-control{width:100%;padding:.75rem 1rem;background:var(--bg-input);border:1px solid var(--border-glass);border-radius:var(--radius-sm);color:var(--text-main);font-family:var(--font-sans);font-size:.95rem;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}select.form-control{-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23475569'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center;background-size:1.25rem;padding-right:2.5rem}[data-theme=dark] select.form-control{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E")}select.form-control option,select option,option{font-size:16px!important;background-color:var(--bg-card)!important;color:var(--text-main)!important}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.25rem;font-size:.95rem;font-weight:600;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;font-family:var(--font-sans);transition:all var(--transition-fast)}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px var(--primary-glow)}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-secondary{background:var(--border-glass-active);color:var(--text-main);border:1px solid var(--border-glass)}.btn-secondary:hover{background:var(--btn-secondary-hover)}.btn-danger{background:var(--danger);color:#fff;box-shadow:0 4px 14px var(--danger-glow)}.btn-danger:hover{background:var(--danger-hover);transform:translateY(-1px)}.btn-success{background:var(--success);color:#fff;box-shadow:0 4px 14px var(--success-glow)}.btn-success:hover{background:var(--success-hover);transform:translateY(-1px)}.btn-icon{padding:.5rem;border-radius:var(--radius-sm)}.login-wrapper{flex:1;display:flex;align-items:center;justify-content:center;padding:2rem;background:radial-gradient(circle at top right,rgba(92,98,236,.15),transparent 50%)}.login-card{width:100%;max-width:440px;animation:scaleIn var(--transition-slow)}.login-header{text-align:center;margin-bottom:2rem}.login-logo{display:inline-flex;background:linear-gradient(135deg,var(--primary) 0%,#8b5cf6 100%);width:60px;height:60px;border-radius:16px;align-items:center;justify-content:center;color:#fff;font-size:1.75rem;box-shadow:0 8px 24px var(--primary-glow);margin-bottom:1rem}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#040508bf;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1.5rem;animation:fadeIn var(--transition-normal)}.modal-content{width:100%;max-width:550px;max-height:90vh;overflow-y:auto;border:1px solid var(--border-glass-active);animation:slideUp var(--transition-normal)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border-glass)}.modal-footer{display:flex;justify-content:flex-end;gap:.75rem;margin-top:2rem;padding-top:1rem;border-top:1px solid var(--border-glass)}.dashboard-grid{flex:1;display:grid;grid-template-columns:280px 1fr;min-height:calc(100vh - 73px)}.dashboard-sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border-glass);padding:1.5rem 1rem;display:flex;flex-direction:column;gap:.5rem}.sidebar-link{display:flex;align-items:center;gap:.85rem;padding:.85rem 1rem;border-radius:var(--radius-sm);color:var(--text-secondary);text-decoration:none;font-weight:500;transition:all var(--transition-fast);cursor:pointer;background:transparent;border:none;width:100%;text-align:left}.sidebar-link:hover{color:var(--text-main);background:var(--btn-secondary-hover)}.sidebar-link.active{color:#fff;background:var(--primary);box-shadow:0 4px 12px var(--primary-glow)}.dashboard-main{padding:2rem;overflow-y:auto;max-height:calc(100vh - 73px)}.tab-container{display:flex;border-bottom:1px solid var(--border-glass);margin-bottom:1.5rem;gap:1rem}.tab-btn{background:transparent;border:none;color:var(--text-secondary);padding:.75rem 1rem;font-family:var(--font-sans);font-weight:600;font-size:1rem;cursor:pointer;position:relative;transition:color var(--transition-fast)}.tab-btn:hover{color:var(--text-main)}.tab-btn.active{color:var(--primary)}.tab-btn.active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:var(--primary);border-radius:9999px;box-shadow:0 0 8px var(--primary)}.badge-status{padding:.25rem .65rem;border-radius:6px;font-size:.75rem;font-weight:600;text-transform:uppercase}.badge-status.registered{background:#f59e0b26;color:var(--warning)}.badge-status.done{background:#10b98126;color:var(--success)}.todo-list{display:flex;flex-direction:column;gap:.75rem}.todo-item{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-radius:var(--radius-sm);background:var(--bg-todo-item);border:1px solid var(--border-glass);transition:all var(--transition-fast);animation:slideIn var(--transition-normal)}.todo-item:hover{border-color:var(--border-glass-active);background:var(--bg-todo-item-hover)}.todo-item.done{border-color:#10b98140;background:#10b9810d}.todo-item-left{display:flex;align-items:center;gap:1rem;flex:1;min-width:0}.todo-checkbox-wrapper{position:relative;display:flex;align-items:center;justify-content:center;cursor:pointer}.todo-checkbox-hidden{opacity:0;position:absolute;width:0;height:0}.todo-checkbox-custom{width:22px;height:22px;border:2px solid var(--text-secondary);border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.todo-checkbox-hidden:checked+.todo-checkbox-custom{background:var(--success);border-color:var(--success);transform:scale(1.1);box-shadow:0 0 10px #10b98166}.todo-checkbox-custom svg{color:#fff;width:14px;height:14px;opacity:0;transform:scale(.5);transition:all var(--transition-fast)}.todo-checkbox-hidden:checked+.todo-checkbox-custom svg{opacity:1;transform:scale(1)}.todo-content{font-size:1rem;font-weight:500;color:var(--text-main);transition:all var(--transition-fast);white-space:normal;word-break:break-word;flex:1;min-width:0}.todo-item.done .todo-content{text-decoration:line-through;color:var(--text-secondary)}.chapter-accordion{margin-bottom:1rem;border:1px solid var(--border-glass);border-radius:var(--radius-sm);overflow:hidden}.chapter-header{background:var(--bg-chapter-header);padding:1rem;display:flex;justify-content:space-between;align-items:center;cursor:pointer;-webkit-user-select:none;user-select:none;font-weight:600}.chapter-header:hover{background:var(--bg-chapter-header-hover)}.chapter-body{padding:1rem;background:var(--bg-chapter-body);display:flex;flex-direction:column;gap:.5rem;border-top:1px solid var(--border-glass)}.master-todo-item{display:flex;align-items:center;gap:.75rem;padding:.75rem;border-radius:var(--radius-sm);background:var(--bg-master-item);border:1px solid transparent}.master-todo-item:hover{border-color:var(--border-glass);background:var(--bg-master-item-hover)}.students-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.student-card{display:flex;flex-direction:column;justify-content:space-between}.student-card-header{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}.student-avatar{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:0 4px 12px #3b82f640}.student-info-row{display:flex;justify-content:space-between;font-size:.875rem;padding:.35rem 0;border-bottom:1px dashed rgba(255,255,255,.05)}.student-info-row:last-child{border-bottom:none}.student-card-actions{display:flex;gap:.5rem;margin-top:1.5rem}.progress-ring-container{display:flex;flex-direction:column;align-items:center;gap:.5rem}.progress-stats-panel{display:flex;justify-content:space-around;gap:1.5rem;margin-bottom:2rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-15px)}to{opacity:1;transform:translate(0)}}@media (max-width: 900px){.dashboard-grid{grid-template-columns:1fr}.dashboard-sidebar{border-right:none;border-bottom:1px solid var(--border-glass);display:grid!important;grid-template-columns:1fr 1fr!important;gap:.5rem!important;padding:.75rem!important}.sidebar-link{white-space:normal!important;width:100%!important;text-align:center!important;justify-content:center!important;font-size:.85rem!important;padding:.6rem .5rem!important;flex-direction:column!important;gap:.35rem!important}.sidebar-label{display:none!important}}@media (max-width: 768px){.dashboard-main,.glass-card{padding:1rem!important}.responsive-monitoring{grid-template-columns:1fr!important;gap:1.5rem!important}.responsive-filter-bar{flex-direction:column!important;align-items:stretch!important}.responsive-filter-bar>div,.responsive-filter-bar .form-group{width:100%!important;flex:none!important}.responsive-filter-bar .btn{width:100%!important;height:40px!important}}.mobile-student-selector{display:none!important}@media (max-width: 768px){.desktop-student-list-sidebar{display:none!important}.mobile-student-selector{display:block!important}.desktop-only-table{display:none!important}.mobile-only-cards{display:flex!important;flex-direction:column;gap:1rem}.form-control,select,input,button{font-size:16px!important}}@media (max-width: 600px){.progress-stats-panel{flex-direction:column;align-items:center}.app-header{flex-direction:column;gap:.75rem;padding:1rem}.brand{justify-content:center;width:100%}.user-profile-menu{width:100%;justify-content:center;flex-wrap:wrap;gap:.5rem!important}.user-badge span{display:none}.user-badge{padding:.45rem .6rem!important}.tab-container{display:flex;width:100%}.tab-btn{flex:1;text-align:center;padding:.75rem .25rem!important;font-size:.85rem!important}table th:nth-child(5),table td:nth-child(5){display:none!important}}.dropdown-option-item:hover{background-color:var(--btn-secondary-hover)!important}