*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;background:linear-gradient(135deg,#ba4949,#d66565);min-height:100vh;color:#fff;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}button{border:none;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s ease;font-family:inherit}button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0003}button:active{transform:translateY(0)}input[type=text],textarea{border:none;border-radius:6px;padding:12px;font-family:inherit;background:#ffffffe6;color:#333}input[type=text]:focus,textarea:focus{outline:none;box-shadow:0 0 0 3px #ffffff4d}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.1)}.header-left{display:flex;align-items:center}.logo{display:flex;align-items:center;gap:8px;font-size:24px;font-weight:700;color:#fff}.logo-icon{background:#fff;color:#ba4949;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700}.logo-text{margin-left:4px}.header-right{display:flex;align-items:center;gap:8px}.header-btn{background:#fff3;color:#fff;padding:8px 16px;border-radius:6px;font-size:14px;font-weight:500;transition:all .2s ease;border:1px solid rgba(255,255,255,.3)}.header-btn:hover{background:#ffffff4d;transform:translateY(-1px)}.menu-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;font-size:20px;padding:0}@media (max-width: 768px){.header{padding:12px 16px}.header-btn{padding:6px 12px;font-size:13px}.header-btn:not(.menu-btn){display:none}.logo{font-size:20px}.logo-icon{width:28px;height:28px;font-size:16px}}.timer-container{display:flex;flex-direction:column;align-items:center;padding:40px 20px;max-width:500px;margin:0 auto;flex:1;justify-content:center}.timer-card{background:#ffffff1a;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:40px;box-shadow:0 8px 32px #0003;border:1px solid rgba(255,255,255,.2);width:100%;max-width:480px}.mode-tabs{display:flex;gap:4px;margin-bottom:40px;background:#0003;border-radius:12px;padding:4px}.mode-tab{flex:1;padding:12px 16px;background:transparent;color:#ffffffb3;border-radius:8px;font-size:14px;font-weight:600;transition:all .2s ease;text-align:center}.mode-tab.active{background:#fff3;color:#fff;box-shadow:0 2px 8px #0003}.mode-tab:hover:not(.active){background:#ffffff1a;color:#ffffffe6}.timer-display{text-align:center;margin-bottom:40px}.time-text{font-size:120px;font-weight:300;color:#fff;font-family:Arial,monospace;line-height:1;margin-bottom:20px;text-shadow:0 2px 10px rgba(0,0,0,.3)}.progress-bar{width:100%;height:4px;background:#fff3;border-radius:2px;overflow:hidden}.progress-fill{height:100%;background:#fff;border-radius:2px;transition:width 1s ease}.timer-controls{display:flex;flex-direction:column;align-items:center;gap:20px}.start-button{background:#fff;color:#ba4949;padding:18px 48px;border-radius:12px;font-size:22px;font-weight:700;letter-spacing:2px;box-shadow:0 4px 20px #0003;transition:all .2s ease;min-width:200px}.start-button:hover{transform:translateY(-2px);box-shadow:0 6px 25px #0000004d}.start-button:active{transform:translateY(0)}.secondary-controls{display:flex;gap:16px}.control-btn{background:#fff3;color:#fff;padding:10px 20px;border-radius:8px;font-size:14px;font-weight:500;transition:all .2s ease;border:1px solid rgba(255,255,255,.3)}.control-btn:hover{background:#ffffff4d;transform:translateY(-1px)}.session-info{margin-top:40px;text-align:center;color:#fff}.session-number{font-size:48px;font-weight:300;margin-bottom:8px;opacity:.9}.session-message{font-size:20px;font-weight:400;opacity:.8}@media (max-width: 768px){.timer-container{padding:20px 16px}.timer-card{padding:30px 20px}.time-text{font-size:80px}.start-button{padding:16px 40px;font-size:20px;min-width:180px}.session-number{font-size:36px}.session-message{font-size:18px}.mode-tab{padding:10px 12px;font-size:13px}}@media (max-width: 480px){.time-text{font-size:64px}.start-button{padding:14px 32px;font-size:18px;min-width:160px}.session-number{font-size:28px}.session-message{font-size:16px}}.music-controls{display:flex;align-items:center;justify-content:center;gap:1rem;margin-top:1.5rem;padding:1rem;background:#ffffff1a;border-radius:12px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.music-btn{background:#fff3;border:2px solid rgba(255,255,255,.3);border-radius:50%;width:50px;height:50px;font-size:1.2rem;color:#fff;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center}.music-btn:hover{background:#ffffff4d;border-color:#ffffff80;transform:scale(1.05)}.music-btn.playing{background:#ffffff4d;border-color:#fff9;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 #fff6}70%{box-shadow:0 0 0 10px #fff0}to{box-shadow:0 0 #fff0}}.volume-control{display:flex;align-items:center;gap:.5rem}.volume-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:80px;height:6px;background:#ffffff4d;border-radius:3px;outline:none;cursor:pointer}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:16px;height:16px;background:#fff;border-radius:50%;cursor:pointer;transition:all .3s ease}.volume-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.volume-slider::-moz-range-thumb{width:16px;height:16px;background:#fff;border-radius:50%;cursor:pointer;border:none;transition:all .3s ease}.volume-slider::-moz-range-thumb:hover{transform:scale(1.2)}.tasks-container{max-width:600px;margin:0 auto;padding:20px;color:#fff}.tasks-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid rgba(255,255,255,.3)}.tasks-header h2{font-size:28px;font-weight:600;margin:0}.menu-button{background:#fff3;color:#fff;width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:20px;transition:all .2s ease;border:1px solid rgba(255,255,255,.3)}.menu-button:hover{background:#ffffff4d}.add-task{margin-bottom:30px}.add-task-button{width:100%;padding:20px;background:transparent;border:2px dashed rgba(255,255,255,.5);border-radius:12px;color:#ffffffb3;font-size:16px;font-weight:500;transition:all .2s ease;cursor:pointer}.add-task-button:hover{border-color:#fffc;color:#fff;background:#ffffff1a}.task-list{display:flex;flex-direction:column;gap:12px}.task-item{display:flex;align-items:center;gap:12px;padding:16px;background:#ffffff1a;border-radius:12px;transition:all .2s ease;border:1px solid rgba(255,255,255,.2)}.task-item:hover{background:#ffffff26;transform:translateY(-1px)}.task-item.completed{opacity:.6}.task-checkbox{background:transparent;border:2px solid rgba(255,255,255,.5);border-radius:50%;width:24px;height:24px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;transition:all .2s ease;flex-shrink:0}.task-checkbox:hover{border-color:#fff;background:#ffffff1a}.task-item.completed .task-checkbox{background:#fff;color:#ba4949;border-color:#fff}.checkbox-icon{line-height:1}.task-text{flex:1;font-size:16px;cursor:pointer;padding:4px 0}.task-item.completed .task-text{text-decoration:line-through;opacity:.7}.task-delete{background:transparent;color:#ffffff80;border:none;width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:20px;transition:all .2s ease;flex-shrink:0}.task-delete:hover{background:#fff3;color:#fff}.task-edit{flex:1}.task-edit-input{width:100%;padding:8px 12px;background:#ffffffe6;color:#333;border:none;border-radius:6px;font-size:16px;font-family:inherit}.task-edit-input:focus{outline:none;box-shadow:0 0 0 3px #ffffff4d}.completed-section{display:flex;justify-content:space-between;align-items:center;margin:30px 0 15px;padding-top:20px;border-top:1px solid rgba(255,255,255,.2)}.completed-section h3{font-size:18px;font-weight:500;margin:0;color:#fffc}.clear-completed{background:#fff3;color:#fff;padding:6px 12px;border-radius:6px;font-size:14px;transition:all .2s ease;border:1px solid rgba(255,255,255,.3)}.clear-completed:hover{background:#ffffff4d}.empty-state{text-align:center;padding:60px 20px;color:#fff9}.empty-icon{font-size:48px;margin-bottom:16px}.empty-state p{font-size:18px;margin:0}.add-task-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-content{background:#fff;border-radius:12px;padding:30px;width:100%;max-width:500px;box-shadow:0 20px 40px #0000004d}.task-input{width:100%;padding:16px;border:2px solid #e1e5e9;border-radius:8px;font-size:16px;font-family:inherit;margin-bottom:20px;color:#333}.task-input:focus{outline:none;border-color:#ba4949}.modal-actions{display:flex;gap:12px;justify-content:flex-end}.save-btn{background:#ba4949;color:#fff;padding:12px 24px;border-radius:8px;font-weight:600;transition:all .2s ease}.save-btn:hover{background:#a03d3d;transform:translateY(-1px)}.cancel-btn{background:#f5f5f5;color:#666;padding:12px 24px;border-radius:8px;font-weight:600;transition:all .2s ease}.cancel-btn:hover{background:#e0e0e0;transform:translateY(-1px)}@media (max-width: 768px){.tasks-container{padding:16px}.tasks-header h2{font-size:24px}.task-item{padding:12px}.task-text{font-size:15px}.modal-content{padding:20px;margin:0 16px}}.app{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;display:flex;flex-direction:column;max-width:1200px;margin:0 auto;width:100%;padding:0 20px}@media (max-width: 768px){.main-content{padding:0 16px}}
