:root{--sidebar-width:250px;--sidebar-bg:#0b0f19;--sidebar-bg-hover:#ffffff0d;--sidebar-active:#d9b3491f;--sidebar-accent:#d9b349;--sidebar-text:#94a3b8;--sidebar-text-hover:#f8fafc;--sidebar-icon:#64748b;--sidebar-icon-active:#eab308;--sidebar-active-indicator:#eab308;--primary:#6c5ce7;--primary-hover:#5a4bd1;--primary-light:#f0eeff;--card-shadow:0 1px 3px #0000000a, 0 1px 2px #0000000f;--card-shadow-hover:0 4px 12px #00000014, 0 2px 4px #0000000a;--border-light:#eaedf1;--text-muted:#8686a0;--text-dark:#1e1e2f;--radius:10px;--radius-sm:6px;--transition:all .2s ease}body .app-sidebar{width:var(--sidebar-width);transition:var(--transition);background:var(--sidebar-bg)!important;border-right:1px solid #ffffff0f!important}body .app-sidebar .side-menu{padding:.5rem 0}body .app-sidebar .side-menu .slide{margin:1px 0;padding:0 .75rem}body .app-sidebar .side-menu__item{border-radius:var(--radius-sm);align-items:center;gap:.75rem;padding:.65rem .85rem;font-size:.875rem;font-weight:450;text-decoration:none;display:flex;position:relative;color:var(--sidebar-text)!important;background:0 0!important;transition:all .25s cubic-bezier(.4,0,.2,1)!important}body .app-sidebar .side-menu__item:hover{color:var(--sidebar-text-hover)!important;background:var(--sidebar-bg-hover)!important;padding-left:1.15rem!important}body .app-sidebar .slide.active .side-menu__item,body .app-sidebar .side-menu__item.active{color:var(--sidebar-text-hover)!important;background:var(--sidebar-active)!important}body .app-sidebar .slide.active .side-menu__item:before,body .app-sidebar .side-menu__item.active:before{content:"";border-radius:0 4px 4px 0;width:4px;height:24px;position:absolute;top:50%;left:-.75rem;transform:translateY(-50%);background:var(--sidebar-active-indicator)!important}body .app-sidebar .side-menu__icon{flex-shrink:0;justify-content:center;align-items:center;width:1.35rem;height:1.35rem;font-size:1.1rem;display:inline-flex;color:var(--sidebar-icon)!important;transition:all .25s!important}body .app-sidebar .side-menu__item:hover .side-menu__icon{color:var(--sidebar-text-hover)!important}body .app-sidebar .slide.active .side-menu__icon,body .app-sidebar .side-menu__item.active .side-menu__icon{color:var(--sidebar-icon-active)!important;filter:drop-shadow(0 0 2px #eab3084d)!important}body .app-sidebar .side-menu__label{white-space:nowrap;font-size:.875rem;font-weight:450}body .app-sidebar__logo{margin-bottom:.25rem;padding:1rem 1.25rem;background:var(--sidebar-bg)!important;border-bottom:1px solid #ffffff0f!important}body .app-sidebar .header-brand{align-items:center;gap:.6rem;text-decoration:none;display:flex}body .app-sidebar .logo-icon{border-radius:var(--radius-sm);justify-content:center;align-items:center;width:2.1rem;height:2.1rem;font-size:1.15rem;display:inline-flex;color:#fff!important;background:linear-gradient(135deg,#f59e0b,#d97706)!important;box-shadow:0 2px 8px #d9b34940!important}body .app-sidebar .logo-text{color:#fff!important;letter-spacing:-.02em!important;font-size:1.25rem!important;font-weight:700!important}.app-header{border-bottom:1px solid var(--border-light);background:#fff}.header-brand .logo-text{color:var(--text-dark);font-size:1.1rem;font-weight:600}.card{border-radius:var(--radius);box-shadow:var(--card-shadow);transition:var(--transition);border:none}.card:hover{box-shadow:var(--card-shadow-hover)}.card-dashboard{border-radius:var(--radius);box-shadow:var(--card-shadow);border:none;transition:transform .2s,box-shadow .2s}.card-dashboard:hover{box-shadow:var(--card-shadow-hover);transform:translateY(-2px)}.stat-icon{border-radius:var(--radius-sm);justify-content:center;align-items:center;width:2.8rem;height:2.8rem;font-size:1.3rem;display:flex}.card .fs-3.fw-bold{font-size:1.75rem!important}.btn{border-radius:var(--radius-sm);transition:var(--transition);padding:.45rem 1rem;font-weight:500}.btn-primary{background:var(--primary);border-color:var(--primary)}.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 10px #6c5ce74d}.btn-outline-primary{color:var(--primary);border-color:var(--primary)}.btn-outline-primary:hover{background:var(--primary);border-color:var(--primary)}.btn-light{background:#f8f8fc;border-color:#eaedf1}.btn-sm{padding:.3rem .75rem;font-size:.8rem}.form-control,.form-select{border-radius:var(--radius-sm);transition:var(--transition);border:1px solid #d0d0e0;padding:.5rem .75rem;font-size:.875rem}.form-control:focus,.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #6c5ce71f}.form-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:.3rem;font-size:.8rem;font-weight:500}.form-range::-webkit-slider-thumb{background:var(--primary)}.calendar-day{text-decoration:none}.calendar-day .day-number{font-size:.85rem;font-weight:500}.study-cal-cell{transition:all .15s}.study-cal-cell:hover:not(.pe-none){background:#f0f0f8;border-radius:6px}.progress{background:#f0f0f5;border-radius:3px;height:6px}.progress-bar{border-radius:3px}.mini-progress{border-radius:3px;height:6px}.status-badge{border-radius:999px;align-items:center;padding:.2rem .6rem;font-size:.7rem;font-weight:500;display:inline-flex}.status-not_started{color:#8686a0;background:#f0f0f5}.status-reading{color:#0369a1;background:#e0f2fe}.status-understood{color:#065f46;background:#d1fae5}.status-practiced{color:#92400e;background:#fef3c7}.status-mastered{color:#5b21b6;background:#ede9fe}.heatmap-grid{grid-template-columns:repeat(17,1fr);gap:3px;display:grid}.heatmap-cell{aspect-ratio:1;background:#f0f0f5;border-radius:3px}.heatmap-cell.level-1{background:#c6f6d5}.heatmap-cell.level-2{background:#9ae6b4}.heatmap-cell.level-3{background:#68d391}.heatmap-cell.level-4{background:#38a169}body .mobile-bottom-nav{z-index:999;justify-content:space-around;align-items:center;padding:.4rem 0;display:flex;position:fixed;bottom:0;left:0;right:0;-webkit-backdrop-filter:blur(12px)!important;background:#ffffffd9!important;border-top:1px solid #0000000f!important;box-shadow:0 -4px 20px #0000000a!important}body .mobile-bottom-nav .mobile-nav-item{border-radius:var(--radius-sm);flex-direction:column;align-items:center;gap:.15rem;padding:.35rem .75rem;font-size:.65rem;font-weight:500;text-decoration:none;display:flex;position:relative;color:#64748b!important;transition:all .2s!important}body .mobile-bottom-nav .mobile-nav-item i{font-size:1.25rem;transition:all .2s!important}body .mobile-bottom-nav .mobile-nav-item.active{color:#d9b349!important}body .mobile-bottom-nav .mobile-nav-item.active:before{content:"";border-radius:0 0 4px 4px;width:24px;height:3px;position:absolute;top:-.4rem;left:50%;transform:translate(-50%);background:#d9b349!important;box-shadow:0 1px 6px #d9b34966!important}body .mobile-bottom-nav .mobile-nav-item:hover{color:#eab308!important}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;padding:1rem 0;display:flex}.page-header .page-title h4{color:var(--text-dark);margin:0;font-size:1.25rem;font-weight:600}.alert{border-radius:var(--radius-sm);border:none}.mood-picker .mood-btn{border-radius:var(--radius-sm);cursor:pointer;width:2.4rem;height:2.4rem;transition:var(--transition);background:#f8f8fc;border:2px solid #0000;justify-content:center;align-items:center;font-size:1.2rem;display:inline-flex}.mood-picker .mood-btn:hover,.mood-picker .mood-btn.selected{border-color:var(--primary);background:var(--primary-light)}.kanban-column{min-height:200px}@media (width<=991.98px){.app-content{padding-bottom:5rem}}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}a,button,.btn,.card,input,select,textarea{transition:var(--transition)}.avatar{border-radius:var(--radius-sm)}.avatar-md{width:2.5rem;height:2.5rem}.dropdown-menu{border-radius:var(--radius-sm);box-shadow:var(--card-shadow-hover);border:1px solid var(--border-light);padding:.35rem}.dropdown-item{transition:var(--transition);border-radius:4px;padding:.45rem .75rem;font-size:.85rem}.dropdown-item:hover{background:var(--primary-light);color:var(--primary)}.badge{border-radius:999px;padding:.25em .65em;font-weight:500}.table{font-size:.875rem}.table thead th{text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);border-bottom:2px solid var(--border-light);font-size:.75rem;font-weight:600}[title]{cursor:help}.footer{font-size:.8rem}@media (width<=991.98px){body .app-sidebar{z-index:1040!important;box-shadow:none!important;transition:left .3s cubic-bezier(.4,0,.2,1)!important;position:fixed!important;top:0!important;bottom:0!important;left:-250px!important}body.sidenav-toggled .app-sidebar{left:0!important;box-shadow:0 0 25px #0000004d!important}body .app-sidebar__overlay{-webkit-backdrop-filter:blur(4px)!important;z-index:1030!important;opacity:0!important;background:#0b0f1999!important;transition:opacity .3s ease-in-out!important;display:none!important;position:fixed!important;inset:0!important}body.sidenav-toggled .app-sidebar__overlay{opacity:1!important;display:block!important}body .app-content{margin-left:0!important;padding-top:74px!important}}