:root{--bg-dark: #0f172a;--bg-card: rgba(30, 41, 59, .7);--primary: #6366f1;--primary-hover: #4f46e5;--text-main: #f8fafc;--text-muted: #94a3b8;--glass-border: rgba(255, 255, 255, .1);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .37);font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:var(--text-main);background-color:var(--bg-dark)}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at top left,#1e293b,#0f172a)}#root{width:100%;height:100vh;display:flex;flex-direction:column;overflow:hidden}.desktop-only{display:none!important}.mobile-only{display:flex!important}@media(min-width:768px){.desktop-only{display:flex!important}.mobile-only{display:none!important}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#0f172a80}::-webkit-scrollbar-thumb{background:#6366f14d;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#6366f180}.glass-panel{background:var(--bg-card);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:16px}.btn-primary{background:var(--primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:12px;font-weight:600;cursor:pointer;transition:all .2s ease}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px #6366f14d}input{background:#0f172a99;border:1px solid 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#0006}.fab:active{transform:scale(.95)}.fab-bottom-right{bottom:24px;right:24px}.fab-top-left{top:80px;left:16px}.drawer-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:999;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.drawer{position:fixed;background:var(--bg-dark);box-shadow:0 -4px 24px #00000080;z-index:1000;transition:transform .3s cubic-bezier(.4,0,.2,1)}.drawer-bottom{bottom:0;left:0;right:0;max-height:70vh;border-top-left-radius:24px;border-top-right-radius:24px;transform:translateY(100%)}.drawer-bottom.open{transform:translateY(0)}.drawer-left{top:0;bottom:0;left:0;width:280px;max-width:85vw;transform:translate(-100%)}.drawer-left.open{transform:translate(0)}.drawer-handle{width:40px;height:4px;background:var(--text-muted);border-radius:2px;margin:12px auto 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var(--glass-border);padding:2rem;border-radius:16px;position:relative;overflow:hidden}.science-card:before{content:'"';position:absolute;top:-10px;right:20px;font-size:8rem;color:#ffffff0d;font-family:serif}.science-quote{font-size:1.1rem;font-style:italic;margin-bottom:1.5rem;color:var(--text-main)}.science-author{font-size:.9rem;color:var(--primary);font-weight:600;text-transform:uppercase;letter-spacing:1px}.features-section{padding:6rem 2rem;max-width:1200px;margin:0 auto}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.feature-card{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:20px;padding:2.5rem;transition:transform .3s ease,box-shadow .3s ease}.feature-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px -10px #00000080;border-color:var(--primary)}.feature-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;background:#ffffff0d}.feature-title{font-size:1.5rem;margin-bottom:1rem;font-weight:600}.feature-desc{color:var(--text-muted);line-height:1.6}.landing-footer{padding:4rem 2rem;text-align:center;border-top:1px solid var(--glass-border);background:#0f172acc}.footer-brand{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;background:linear-gradient(to right,#818cf8,#c084fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.hero-title{font-size:2.5rem}.science-grid,.features-grid{grid-template-columns:1fr}}.toast-container{position:fixed;bottom:2rem;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:.5rem;z-index:9999;pointer-events:none}.toast{display:flex;align-items:center;gap:.75rem;padding:.75rem 1.25rem;background:#1e293be6;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.1);border-radius:50px;color:#fff;font-size:.95rem;font-weight:500;box-shadow:0 8px 24px #0000004d;pointer-events:auto;animation:toast-in .3s cubic-bezier(.16,1,.3,1);min-width:300px;max-width:90vw}.toast.success{border-left:4px solid #10b981}.toast.error{border-left:4px solid #ef4444}.toast.info{border-left:4px solid #3b82f6}.toast-icon{display:flex;align-items:center;justify-content:center}.toast.success .toast-icon{color:#10b981}.toast.error .toast-icon{color:#ef4444}.toast.info .toast-icon{color:#3b82f6}@keyframes toast-in{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.dashboard-container{padding:2rem 2rem 4rem;display:flex;flex-direction:column;gap:2rem;max-width:1600px;margin:0 auto}.dashboard-header h1{font-size:2rem;margin-bottom:.5rem;background:linear-gradient(to right,#fff,#a5b4fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.dashboard-section-pomodoro{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}.dashboard-section-pomodoro>a{display:block;min-width:0;text-decoration:none;color:inherit}.pomodoro-stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-top:1rem}.dashboard-section-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:1.5rem}.dashboard-notes-list,.dashboard-tasks-list{display:flex;flex-direction:column;gap:.75rem;flex:1;min-width:0;overflow-y:auto;overflow-x:hidden;padding-right:.5rem}.dashboard-section-stats{display:grid;grid-template-columns:2fr 1fr;gap:1.5rem}@media(max-width:1024px){.dashboard-section-pomodoro{grid-template-columns:repeat(2,1fr)}.dashboard-section-stats{grid-template-columns:1fr}.dashboard-activity-chart{min-height:350px}}@media(max-width:640px){.dashboard-container{padding:1rem 1rem 5rem;gap:1.5rem}.dashboard-section-pomodoro{display:flex;flex-direction:column;gap:1rem}.dashboard-section-content{grid-template-columns:1fr}.dashboard-section-stats{display:flex;flex-direction:column;gap:1rem}}.todo-container{max-width:1400px;margin:0 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var(--glass-border);font-weight:600;display:flex;align-items:center;gap:.5rem;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px;flex-shrink:0}.quadrant-content{flex:1;overflow-y:auto;overflow-x:hidden;padding:1rem;display:flex;flex-direction:column;gap:.75rem;min-height:0}.quadrant-urgent-important .quadrant-header{color:#ef4444;background:#ef44441a}.quadrant-not-urgent-important .quadrant-header{color:#f59e0b;background:#f59e0b1a}.quadrant-urgent-not-important .quadrant-header{color:#3b82f6;background:#3b82f61a}.quadrant-not-urgent-not-important .quadrant-header{color:#10b981;background:#10b9811a}.todo-item{display:flex;align-items:flex-start;gap:.75rem;padding:.75rem;background:#ffffff0d;border-radius:8px;border:1px solid var(--glass-border);transition:all .2s}.todo-item:hover{background:#ffffff14;transform:translateY(-1px)}.todo-item.dragging{background:#6366f133;box-shadow:0 10px 20px #0003;border-color:var(--primary)}.todo-checkbox{cursor:pointer;color:var(--text-muted);margin-top:2px}.todo-checkbox.completed{color:var(--primary)}.todo-content{flex:1;cursor:pointer;min-width:0}.todo-text{font-size:.95rem;color:var(--text-main);line-height:1.4;word-break:break-word}.todo-text.completed{text-decoration:line-through;color:var(--text-muted)}.todo-meta{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:.4rem}.todo-meta-item{display:flex;align-items:center;gap:.25rem;font-size:.75rem;color:var(--text-muted)}.todo-delete-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px;opacity:0;transition:opacity .2s}.todo-item:hover .todo-delete-btn{opacity:1}.todo-delete-btn:hover{color:#ef4444}@media(max-width:1024px){.matrix-grid{grid-template-columns:1fr;grid-template-rows:auto;display:flex;flex-direction:column}.matrix-quadrant{min-height:300px}.todo-container{height:auto;min-height:100%}.todo-panel{height:auto}}.confirmation-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9999;animation:fade-in .2s ease-out}.confirmation-modal{background:#1e293bf2;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:1.5rem;width:90%;max-width:400px;box-shadow:0 20px 40px #0006;animation:scale-in .2s cubic-bezier(.16,1,.3,1)}.confirmation-header{margin-bottom:1rem}.confirmation-header h3{margin:0;font-size:1.25rem;color:#fff}.confirmation-body{margin-bottom:1.5rem;color:var(--text-muted);font-size:.95rem;line-height:1.5}.confirmation-footer{display:flex;justify-content:flex-end;gap:.75rem}.btn-confirm,.btn-cancel-modal{padding:.6rem 1.25rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s;border:none;font-size:.9rem}.btn-cancel-modal{background:#ffffff0d;color:var(--text-muted)}.btn-cancel-modal:hover{background:#ffffff1a;color:#fff}.btn-confirm{background:var(--primary);color:#fff}.btn-confirm:hover{filter:brightness(1.1)}.btn-confirm.dangerous{background:#ef4444}.btn-confirm.dangerous:hover{background:#dc2626}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes scale-in{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.task-modal-overlay{position:fixed;inset:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000}.task-modal{width:100%;max-width:500px;background:#0f172a;border-radius:16px;border:1px solid rgba(255,255,255,.1);box-shadow:0 20px 50px #00000080;padding:1.5rem;margin:1rem;color:#f8fafc}.task-modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.task-modal-header h2{margin:0;font-size:1.25rem;font-weight:600}.task-modal-close{background:none;border:none;color:#94a3b8;cursor:pointer;padding:4px;transition:color .2s}.task-modal-close:hover{color:#f8fafc}.task-input-group{margin-bottom:1.25rem}.task-input-label{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem;color:#94a3b8;font-size:.9rem}.task-input{width:100%;background:#1e293b80;border:1px solid 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.2s}.task-checkbox:checked{background:#6366f1;border-color:#6366f1}.task-checkbox:checked:after{content:"✓";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:.8rem;font-weight:700}.task-modal-footer{display:flex;justify-content:flex-end;gap:1rem}.btn-cancel{background:transparent;border:none;color:#94a3b8;padding:.75rem 1.5rem;border-radius:8px;cursor:pointer;font-weight:500;transition:color .2s}.btn-cancel:hover{color:#f8fafc}.btn-save{background:#6366f1;border:none;color:#fff;padding:.75rem 1.5rem;border-radius:8px;cursor:pointer;font-weight:600;transition:background .2s}.btn-save:hover{background:#4f46e5}.btn-delete{background:#ef44441a;border:none;color:#ef4444;padding:.75rem 1.5rem;border-radius:8px;cursor:pointer;font-weight:600;margin-right:auto;transition:background .2s}.btn-delete:hover{background:#ef444433}.bookshelf-container{height:100%;display:flex;flex-direction:column;padding:2rem;overflow-y:auto;background:radial-gradient(circle at top right,rgba(99,102,241,.05),transparent 40%)}.bookshelf-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:3rem;gap:2rem;flex-wrap:wrap}.bookshelf-header h2{font-size:2.5rem;font-weight:800;margin:0 0 .5rem;background:linear-gradient(135deg,#fff,#94a3b8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.subtitle{color:var(--text-muted);margin:0;font-size:1rem}.btn-add-book{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 2rem;min-width:160px;background:var(--primary);color:#fff;border:none;border-radius:50px;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 4px 12px #6366f14d}.btn-add-book:hover{transform:translateY(-2px);box-shadow:0 6px 16px #6366f166}.shelf-section{margin-bottom:3rem}.section-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem;padding-bottom:.5rem;border-bottom:1px solid var(--glass-border)}.section-icon{color:var(--primary)}.section-header h3{margin:0;font-size:1.2rem;font-weight:600;color:var(--text-main)}.books-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(112px,1fr));gap:2rem}.book-card-shelf{position:relative;cursor:pointer;group:hover}.book-cover-wrapper{position:relative;width:100%;aspect-ratio:2/3;border-radius:8px;overflow:hidden;box-shadow:0 8px 24px #0000004d;transition:transform .3s ease,box-shadow .3s ease;margin-bottom:1rem}.book-card-shelf:hover .book-cover-wrapper{transform:translateY(-8px);box-shadow:0 12px 32px #00000080}.book-cover-wrapper img{width:100%;height:100%;object-fit:cover}.book-overlay{position:absolute;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.book-card-shelf:hover .book-overlay{opacity:1}.btn-play{background:#fff3;border:1px solid rgba(255,255,255,.4);border-radius:50%;width:56px;height:56px;display:flex;align-items:center;justify-content:center;color:#fff;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transform:scale(.8);transition:transform .2s}.book-card-shelf:hover .btn-play{transform:scale(1)}.book-details h4{margin:0 0 .25rem;font-size:.95rem;font-weight:600;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--text-main)}.book-details p{margin:0;font-size:.8rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.book-actions-menu{position:absolute;top:.5rem;right:.5rem;display:flex;flex-direction:column;gap:.5rem;opacity:0;transition:opacity .2s;z-index:2}.book-card-shelf:hover .book-actions-menu{opacity:1}.action-icon{width:32px;height:32px;border-radius:50%;background:#1e293be6;border:1px solid var(--glass-border);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s}.action-icon:hover{background:var(--primary)}.action-icon.delete:hover{background:#ef4444}.badge-completed{position:absolute;top:.5rem;left:.5rem;background:#10b981;color:#fff;padding:.25rem;border-radius:4px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px #0003}.modal-overlay{position:fixed;inset:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;padding:2rem}.search-modal{background:#1e293b;width:100%;max-width:800px;height:80vh;border-radius:16px;border:1px solid var(--glass-border);display:flex;flex-direction:column;overflow:hidden;box-shadow:0 24px 48px #00000080}.modal-header{padding:1.5rem;border-bottom:1px solid var(--glass-border);display:flex;justify-content:space-between;align-items:center}.modal-header h3{margin:0;font-size:1.2rem}.close-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:.5rem;border-radius:50%}.close-btn:hover{background:#ffffff1a;color:#fff}.modal-body{flex:1;display:flex;flex-direction:column;overflow:hidden}.search-form{padding:1.5rem;position:relative;display:flex;align-items:center}.search-form input{width:100%;padding:1rem 3rem;background:#0003;border:1px solid var(--glass-border);border-radius:12px;color:#fff;font-size:1.1rem}.search-form input:focus{outline:none;border-color:var(--primary)}.search-form .search-icon{position:absolute;left:2.5rem;color:var(--text-muted)}.clear-search{position:absolute;right:2.5rem;background:none;border:none;color:var(--text-muted);cursor:pointer}.search-results-container{flex:1;overflow-y:auto;padding:0 1.5rem 1.5rem}.search-results-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(98px,1fr));gap:1rem}.search-result-card{background:#ffffff08;border-radius:8px;padding:.75rem;cursor:pointer;transition:all .2s;position:relative}.search-result-card:hover{background:#ffffff14}.search-result-card.added{opacity:.6;cursor:default}.search-result-card img{width:100%;aspect-ratio:2/3;object-fit:cover;border-radius:4px;margin-bottom:.5rem}.result-info h4{margin:0 0 .25rem;font-size:.9rem;line-height:1.2;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.result-info p{margin:0;font-size:.75rem;color:var(--text-muted)}.badge-added{display:inline-flex;align-items:center;gap:.25rem;font-size:.7rem;color:#10b981;margin-top:.5rem;font-weight:600}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem;color:var(--text-muted);gap:1rem;text-align:center;background:#ffffff05;border-radius:12px;border:2px dashed var(--glass-border)}.btn-primary-outline{padding:.75rem 1.5rem;background:transparent;border:1px solid var(--primary);color:var(--primary);border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s}.btn-primary-outline:hover{background:#6366f11a}.pomodoro-container{height:100%;display:flex;flex-direction:column;gap:1.5rem}.pomodoro-tabs{padding:1rem;display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}@media(max-width:640px){.pomodoro-tabs{gap:.5rem;padding:.75rem;overflow-x:auto;justify-content:flex-start;flex-wrap:nowrap;-webkit-overflow-scrolling:touch}.pomodoro-tabs::-webkit-scrollbar{display:none}}.pomodoro-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;position:relative;overflow:auto}@media(max-width:640px){.pomodoro-content{padding:1rem}}.pomodoro-grid{width:100%;display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem;align-items:start}@media(max-width:768px){.pomodoro-grid{grid-template-columns:1fr;gap:1.5rem}}.timer-display{font-size:5rem;font-weight:700;margin-bottom:3rem;font-variant-numeric:tabular-nums}@media(max-width:480px){.timer-display{font-size:3.5rem;margin-bottom:2rem}}.tab-button{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:12px;border:none;cursor:pointer;transition:all .2s;font-weight:500;white-space:nowrap}@media(max-width:640px){.tab-button{padding:.5rem 1rem;font-size:.9rem}}