.erp-shell{display:flex;flex-direction:column;min-height:100vh;background:var(--color-neutral-50)}[data-theme=dark] .erp-shell{background:var(--color-neutral-950)}.sidebar{position:fixed;top:56px;left:0;bottom:0;width:240px;background:var(--color-neutral-0, #ffffff);border-right:1px solid var(--color-neutral-200);padding:1rem 0;overflow-y:auto;display:flex;flex-direction:column;gap:.25rem;z-index:40;transition:transform .2s ease}[data-theme=dark] .sidebar{background:var(--color-neutral-900);border-right-color:var(--color-neutral-800)}.sidebar-section{padding:.5rem 1rem .25rem}.sidebar-section-label{font-size:.6875rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-neutral-400);margin-bottom:.25rem}.nav-item{display:flex;align-items:center;gap:.625rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;color:var(--color-neutral-600);text-decoration:none;border-radius:.375rem;margin:0 .5rem;cursor:pointer;transition:background .15s,color .15s}.nav-item:hover{background:var(--color-neutral-100);color:var(--color-neutral-900)}.nav-item.active{background:var(--color-primary-subtle, #EEF4FF);color:var(--color-primary);font-weight:600}[data-theme=dark] .nav-item{color:var(--color-neutral-400)}[data-theme=dark] .nav-item:hover{background:var(--color-neutral-800);color:var(--color-neutral-100)}[data-theme=dark] .nav-item.active{background:#1a46cc26;color:var(--color-primary-light, #D6E4FF)}.erp-content{margin-left:240px;margin-top:56px;padding:1.5rem;flex:1}.page-header{margin-bottom:1.5rem}.page-title{font-size:1.5rem;font-weight:700;color:var(--color-neutral-900);margin:0 0 .25rem}.page-subtitle{font-size:.875rem;color:var(--color-neutral-500);margin:0}[data-theme=dark] .page-title{color:var(--color-neutral-50)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:1.5rem}.timetable-container{background:var(--color-neutral-0, #ffffff);border:1px solid var(--color-neutral-200);border-radius:.75rem;overflow:hidden}[data-theme=dark] .timetable-container{background:var(--color-neutral-900);border-color:var(--color-neutral-800)}.timetable-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;border-bottom:1px solid var(--color-neutral-200)}[data-theme=dark] .timetable-header{border-bottom-color:var(--color-neutral-800)}.timetable-title{font-weight:600;font-size:1rem;color:var(--color-neutral-900)}[data-theme=dark] .timetable-title{color:var(--color-neutral-50)}.timetable-grid{overflow-x:auto}.timetable-table{width:100%;border-collapse:collapse;font-size:.8125rem}.timetable-table th{padding:.625rem .75rem;text-align:center;font-weight:600;color:var(--color-neutral-600);background:var(--color-neutral-50);border-bottom:1px solid var(--color-neutral-200)}[data-theme=dark] .timetable-table th{background:var(--color-neutral-800);color:var(--color-neutral-300);border-bottom-color:var(--color-neutral-700)}.timetable-table td{padding:.5rem .75rem;border:1px solid var(--color-neutral-100);min-width:120px;vertical-align:top}[data-theme=dark] .timetable-table td{border-color:var(--color-neutral-800)}.time-slot-label{font-weight:600;color:var(--color-neutral-500);font-size:.75rem;white-space:nowrap}.session-cell{background:var(--color-primary-subtle, #EEF4FF);border-radius:.375rem;padding:.375rem .5rem}.session-cell .subject{font-weight:600;color:var(--color-primary);font-size:.8125rem}.session-cell .room{font-size:.6875rem;color:var(--color-neutral-500);margin-top:.125rem}.empty-cell{color:var(--color-neutral-300);text-align:center;font-size:.6875rem}.week-selector{display:flex;align-items:center;gap:.75rem;margin-bottom:1.25rem}.week-label{font-size:.875rem;font-weight:600;color:var(--color-neutral-700)}[data-theme=dark] .week-label{color:var(--color-neutral-300)}.week-select{padding:.375rem .75rem;border:1px solid var(--color-neutral-300);border-radius:.5rem;font-size:.875rem;background:var(--color-neutral-0, #fff);color:var(--color-neutral-900);cursor:pointer}[data-theme=dark] .week-select{background:var(--color-neutral-800);border-color:var(--color-neutral-700);color:var(--color-neutral-100)}.empty-state{text-align:center;padding:3rem 1.5rem}.empty-state-icon{font-size:2.5rem;margin-bottom:.75rem;opacity:.4}.empty-state-text{font-size:.9375rem;color:var(--color-neutral-500)}.auth-guard-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:1rem;background:var(--color-neutral-50)}[data-theme=dark] .auth-guard-loading{background:var(--color-neutral-950)}.auth-guard-spinner{width:40px;height:40px;border:3px solid var(--color-neutral-200);border-top-color:var(--color-primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.topbar{position:fixed;top:0;left:0;right:0;height:56px;z-index:50;display:flex;align-items:center;padding:0 1.25rem;gap:.75rem;background:var(--color-neutral-0, #ffffff);border-bottom:1px solid var(--color-neutral-200);background-clip:padding-box}[data-theme=dark] .topbar{background:var(--color-neutral-900);border-bottom-color:var(--color-neutral-800)}.topbar-brand{display:flex;align-items:center;gap:.5rem;text-decoration:none}.topbar-logo{width:30px;height:30px;border-radius:8px;background:var(--color-primary);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:.8125rem}.topbar-app-name{font-weight:700;font-size:1rem;color:var(--color-neutral-900)}[data-theme=dark] .topbar-app-name{color:var(--color-neutral-50)}.topbar-spacer{flex:1}.topbar-actions{display:flex;align-items:center;gap:.5rem}.topbar-action-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:.5rem;border:none;background:transparent;color:var(--color-neutral-500);cursor:pointer;transition:background .15s,color .15s}.topbar-action-btn:hover{background:var(--color-neutral-100);color:var(--color-neutral-800)}[data-theme=dark] .topbar-action-btn:hover{background:var(--color-neutral-800);color:var(--color-neutral-200)}.topbar-user{position:relative;display:flex;align-items:center;gap:.5rem;cursor:pointer;padding:.25rem .5rem;border-radius:.5rem;transition:background .15s}.topbar-user:hover{background:var(--color-neutral-100)}[data-theme=dark] .topbar-user:hover{background:var(--color-neutral-800)}.topbar-user-avatar{width:32px;height:32px;border-radius:50%;background:var(--color-primary);color:#fff;font-weight:700;font-size:.8125rem;display:flex;align-items:center;justify-content:center}.topbar-user-name{font-size:.875rem;font-weight:600;color:var(--color-neutral-700)}[data-theme=dark] .topbar-user-name{color:var(--color-neutral-300)}.topbar-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:200px;background:var(--color-neutral-0, #ffffff);border:1px solid var(--color-neutral-200);border-radius:.75rem;box-shadow:0 8px 24px #0000001f;overflow:hidden;z-index:100}[data-theme=dark] .topbar-dropdown{background:var(--color-neutral-800);border-color:var(--color-neutral-700)}.topbar-dropdown-header{padding:.75rem 1rem;border-bottom:1px solid var(--color-neutral-100)}[data-theme=dark] .topbar-dropdown-header{border-bottom-color:var(--color-neutral-700)}.topbar-dropdown-item{display:flex;align-items:center;gap:.625rem;padding:.625rem 1rem;font-size:.875rem;color:var(--color-neutral-700);text-decoration:none;cursor:pointer;border:none;background:transparent;width:100%;transition:background .12s}.topbar-dropdown-item:hover{background:var(--color-neutral-50);color:var(--color-neutral-900)}[data-theme=dark] .topbar-dropdown-item{color:var(--color-neutral-300)}[data-theme=dark] .topbar-dropdown-item:hover{background:var(--color-neutral-700);color:var(--color-neutral-100)}.topbar-dropdown-item.danger{color:var(--color-error, #dc2626)}.topbar-dropdown-divider{border:none;border-top:1px solid var(--color-neutral-100);margin:0}[data-theme=dark] .topbar-dropdown-divider{border-top-color:var(--color-neutral-700)}.stat-card{display:flex;align-items:center;gap:1rem;padding:1.25rem;background:var(--color-neutral-0, #ffffff);border:1px solid var(--color-neutral-200);border-radius:.75rem}[data-theme=dark] .stat-card{background:var(--color-neutral-900);border-color:var(--color-neutral-800)}.stat-card-icon{width:44px;height:44px;border-radius:.625rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}.icon-primary{background:var(--color-primary-subtle, #EEF4FF);color:var(--color-primary)}.icon-success{background:#dcfce7;color:#16a34a}.icon-accent{background:#fef3c7;color:#d97706}.icon-secondary{background:#f3e8ff;color:#9333ea}[data-theme=dark] .icon-success{background:#16a34a26}[data-theme=dark] .icon-accent{background:#d9770626}[data-theme=dark] .icon-secondary{background:#9333ea26}.card{background:var(--color-neutral-0, #ffffff);border:1px solid var(--color-neutral-200);border-radius:.75rem;overflow:hidden}[data-theme=dark] .card{background:var(--color-neutral-900);border-color:var(--color-neutral-800)}.card-header{padding:.875rem 1.25rem;border-bottom:1px solid var(--color-neutral-200);font-size:.9375rem;font-weight:600;color:var(--color-neutral-800)}[data-theme=dark] .card-header{border-bottom-color:var(--color-neutral-800);color:var(--color-neutral-100)}.card-body{padding:1.25rem}.badge{display:inline-flex;align-items:center;gap:.25rem;padding:.2rem .5rem;border-radius:999px;font-size:.6875rem;font-weight:600;line-height:1.4}.badge-secondary{background:var(--color-neutral-100);color:var(--color-neutral-600)}.badge-success{background:#dcfce7;color:#15803d}.badge-warning{background:#fef9c3;color:#854d0e}[data-theme=dark] .badge-secondary{background:var(--color-neutral-800);color:var(--color-neutral-300)}.btn{display:inline-flex;align-items:center;gap:.375rem;padding:.5rem 1rem;border-radius:.5rem;border:1px solid transparent;font-size:.875rem;font-weight:600;cursor:pointer;transition:background .15s,color .15s,border-color .15s;text-decoration:none;line-height:1.4}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-primary:hover:not(:disabled){filter:brightness(1.1)}.btn-outline{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}.btn-outline:hover:not(:disabled){background:var(--color-primary-subtle, #EEF4FF)}.btn-success{background:#16a34a;color:#fff;border-color:#16a34a}.btn-success:hover:not(:disabled){filter:brightness(1.1)}.btn-ghost{background:transparent;border-color:transparent;color:var(--color-neutral-600)}.btn-ghost:hover:not(:disabled){background:var(--color-neutral-100);color:var(--color-neutral-900)}[data-theme=dark] .btn-ghost:hover:not(:disabled){background:var(--color-neutral-800);color:var(--color-neutral-100)}.btn-sm{padding:.3125rem .625rem;font-size:.8125rem;border-radius:.4375rem}.form-group{display:flex;flex-direction:column;gap:.25rem;margin-bottom:.5rem}.form-label{font-size:.8125rem;font-weight:600;color:var(--color-neutral-700)}[data-theme=dark] .form-label{color:var(--color-neutral-300)}.form-input,.form-select{padding:.5rem .75rem;border:1px solid var(--color-neutral-300);border-radius:.5rem;font-size:.875rem;background:var(--color-neutral-0, #fff);color:var(--color-neutral-900);transition:border-color .15s;width:100%;box-sizing:border-box}.form-input:focus,.form-select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-subtle, #EEF4FF)}[data-theme=dark] .form-input,[data-theme=dark] .form-select{background:var(--color-neutral-800);border-color:var(--color-neutral-700);color:var(--color-neutral-100)}.alert{display:flex;align-items:flex-start;gap:.5rem;padding:.75rem 1rem;border-radius:.5rem;font-size:.875rem}.alert-danger{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}[data-theme=dark] .alert-danger{background:#b91c1c26;border-color:#b91c1c4d;color:#fca5a5}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:200;padding:1rem}.modal-card{background:var(--color-neutral-0, #ffffff);border-radius:.875rem;width:100%;max-width:520px;max-height:90vh;overflow-y:auto;padding:1.5rem;box-shadow:0 20px 48px #0000002e}[data-theme=dark] .modal-card{background:var(--color-neutral-900);border:1px solid var(--color-neutral-800)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.25rem}.modal-title{font-size:1.0625rem;font-weight:700;color:var(--color-neutral-900)}[data-theme=dark] .modal-title{color:var(--color-neutral-50)}.tab-bar{display:flex;gap:.25rem;border-bottom:2px solid var(--color-neutral-200);overflow-x:auto}[data-theme=dark] .tab-bar{border-bottom-color:var(--color-neutral-800)}.tab-btn{padding:.625rem 1rem;border:none;background:transparent;font-size:.875rem;font-weight:500;color:var(--color-neutral-500);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .15s,border-color .15s;white-space:nowrap}.tab-btn:hover{color:var(--color-neutral-800)}.tab-btn.active{color:var(--color-primary);border-bottom-color:var(--color-primary);font-weight:600}[data-theme=dark] .tab-btn{color:var(--color-neutral-400)}[data-theme=dark] .tab-btn:hover{color:var(--color-neutral-200)}.slot-delete-btn{position:absolute;top:2px;right:2px;display:none;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;border:none;background:#dc262626;color:#dc2626;cursor:pointer;padding:0}.session-cell:hover .slot-delete-btn{display:flex}@media(max-width:768px){.sidebar{transform:translate(-100%)}.erp-content{margin-left:0}}