@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg: #0A0A0B;--surface: #15151A;--primary: #7C5CFA;--primary-dark: #6447E0;--accent: #8B5CF6;--text: #FAFAFA;--text-muted: #9CA3AF;--border: #27272A;--success: #22C55E;--warning: #F59E0B;--danger: #EF4444;--radius: 12px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--toast-color: var(--success);--primary-rgb: 124, 92, 250;--accent-rgb: 139, 92, 246;--text-muted-rgb: 156, 163, 175;--danger-rgb: 239, 68, 68}body{margin:0;padding:0;box-sizing:border-box;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6;font-size:15px}#root{display:flex;justify-content:center;align-items:flex-start;min-height:100vh;padding:20px}.app-container{background:var(--bg);border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:600px;display:flex;flex-direction:column;overflow:hidden;position:relative;border:1px solid var(--border)}.app-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:10}.app-title{font-size:1.2rem;font-weight:700;margin:0;display:flex;align-items:center;gap:8px;color:var(--primary)}.app-icon{color:var(--accent)}.header-right{display:flex;align-items:center;gap:15px}.sync-status{display:flex;align-items:center;gap:5px;font-size:.75rem;padding:4px 8px;border-radius:6px;color:var(--text-muted);background:rgba(var(--text-muted-rgb),.1)}.sync-status.syncing{color:var(--primary);background:rgba(var(--primary-rgb),.1)}.sync-status.error{color:var(--danger);background:rgba(var(--danger-rgb),.1)}.points-display{display:flex;align-items:center;gap:5px;font-size:.9rem;font-weight:600;color:var(--accent)}.star-icon{color:var(--warning)}.toast-message{position:absolute;top:60px;left:50%;transform:translate(-50%);background:var(--toast-color);color:var(--text);padding:10px 15px;border-radius:var(--radius);box-shadow:var(--shadow);z-index:100;font-size:.9rem;display:flex;align-items:center;gap:8px}.app-main{padding:20px;flex-grow:1;display:flex;flex-direction:column;justify-content:center;align-items:center}.start-screen,.input-screen,.plan-screen,.working-screen,.done-screen{width:100%;max-width:500px;text-align:center;padding:20px 0}h2{font-size:1.5rem;color:var(--primary);margin-bottom:20px;display:flex;align-items:center;justify-content:center;gap:10px}h3{font-size:1.1rem;color:var(--text);margin-top:30px;margin-bottom:15px;text-align:left;width:100%}p{color:var(--text-muted);margin-bottom:15px}.high-score{font-size:1rem;font-weight:500;color:var(--accent);display:flex;align-items:center;justify-content:center;gap:5px;margin-bottom:30px}.start-icon,.done-icon{color:var(--primary);margin-bottom:20px}.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 25px;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;border:none}.primary-button{background:var(--primary);color:var(--text);box-shadow:0 4px 10px rgba(var(--primary-rgb),.3)}.primary-button:hover{background:var(--primary-dark)}.primary-button:disabled{background:var(--border);color:var(--text-muted);cursor:not-allowed;box-shadow:none}.secondary-button{background:var(--surface);color:var(--primary);border:1px solid var(--border)}.secondary-button:hover{background:var(--border);color:var(--primary)}.homework-form{background:var(--surface);padding:20px;border-radius:var(--radius);margin-bottom:30px;text-align:left;box-shadow:var(--shadow);border:1px solid var(--border)}.form-group{margin-bottom:15px}.form-group label{display:block;font-size:.9rem;color:var(--text-muted);margin-bottom:8px;font-weight:500}.form-group input,.form-group textarea,.form-group select{width:calc(100% - 20px);padding:10px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:.95rem;transition:border-color .2s ease}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--primary);outline:none}.form-group textarea{min-height:80px;resize:vertical}.add-homework-button{width:100%;margin-top:10px}.homework-list{list-style:none;padding:0;margin:0;width:100%}.homework-item{background:var(--surface);padding:15px;border-radius:var(--radius);margin-bottom:10px;display:flex;justify-content:space-between;align-items:center;border:1px solid var(--border);box-shadow:var(--shadow)}.homework-details{flex-grow:1;text-align:left}.homework-subject{font-size:.8rem;font-weight:600;color:var(--primary);background:rgba(var(--primary-rgb),.15);padding:4px 8px;border-radius:6px;margin-bottom:5px;display:inline-block}.homework-description{font-size:1rem;font-weight:500;color:var(--text);margin:5px 0}.homework-meta{display:flex;gap:15px;font-size:.8rem;color:var(--text-muted)}.homework-meta span{display:flex;align-items:center;gap:5px}.delete-button{background:none;border:none;color:var(--danger);cursor:pointer;padding:5px;border-radius:50%;display:flex;align-items:center;justify-content:center}.delete-button:hover{background:rgba(var(--danger-rgb),.1)}.empty-state{color:var(--text-muted);font-style:italic;margin-top:20px}.generate-plan-button{margin-top:20px;width:100%}.loading-message{display:flex;flex-direction:column;align-items:center;gap:15px;margin-top:50px;color:var(--primary)}.spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.daily-plan-list{list-style:none;padding:0;margin:0;width:100%}.plan-item{background:var(--surface);padding:15px;border-radius:var(--radius);margin-bottom:10px;display:flex;align-items:center;gap:15px;border:1px solid var(--border);box-shadow:var(--shadow);text-align:left}.plan-item.completed{opacity:.7;background:var(--border)}.plan-time{font-size:.85rem;font-weight:600;color:var(--text-muted);width:80px;flex-shrink:0}.plan-details{flex-grow:1}.plan-subject{font-size:.8rem;font-weight:600;color:var(--primary);background:rgba(var(--primary-rgb),.15);padding:4px 8px;border-radius:6px;margin-bottom:5px;display:inline-block}.plan-description{font-size:.95rem;color:var(--text);margin:5px 0 0}.plan-done-icon{color:var(--success);flex-shrink:0}.pomodoro-timer-card{background:linear-gradient(135deg,var(--primary),var(--accent));padding:30px;border-radius:var(--radius);margin-bottom:30px;display:flex;flex-direction:column;align-items:center;gap:20px;color:var(--text);box-shadow:0 8px 20px rgba(var(--primary-rgb),.4);width:100%;max-width:300px}.timer-icon{color:var(--text)}.timer-display{font-size:3.5rem;font-weight:700;letter-spacing:2px;text-shadow:0 2px 5px rgba(0,0,0,.2)}.timer-controls{display:flex;gap:20px}.control-button{background:#fff3;border:none;border-radius:50%;width:50px;height:50px;display:flex;align-items:center;justify-content:center;color:var(--text);cursor:pointer}.control-button:hover{background:#ffffff4d}.current-task-card{background:var(--surface);padding:20px;border-radius:var(--radius);margin-bottom:30px;text-align:left;border:1px solid var(--border);box-shadow:var(--shadow);width:100%}.current-task-card h3{margin-top:0;margin-bottom:10px;color:var(--primary);text-align:center}.current-task-subject{font-size:.9rem;font-weight:600;color:var(--accent);background:rgba(var(--accent-rgb),.15);padding:5px 10px;border-radius:8px;margin-bottom:8px;display:inline-block}.current-task-description{font-size:1.1rem;font-weight:500;color:var(--text);margin:10px 0}.current-task-time{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--text-muted);margin-bottom:20px}.complete-task-button{width:100%}.progress-section{width:100%;text-align:left;margin-top:20px}.progress-bar-container{width:100%;background:var(--border);height:10px;border-radius:5px;overflow:hidden;margin-top:10px}.progress-bar-fill{height:100%;background:linear-gradient(to right,var(--primary),var(--accent));border-radius:5px;transition:width .5s ease-out}.progress-text{font-size:.9rem;color:var(--text-muted);margin-top:8px;display:block;text-align:right}.done-screen{display:flex;flex-direction:column;align-items:center;gap:20px}.total-points-display{font-size:1.5rem;font-weight:700;color:var(--accent);display:flex;align-items:center;gap:10px}.encouragement-text{font-size:1rem;color:var(--text);margin-bottom:30px}.stats-section{background:var(--surface);padding:20px;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);width:100%;max-width:400px;margin-bottom:30px}.stats-section h3{text-align:center;margin-bottom:20px;color:var(--primary)}.pie-chart-wrapper{display:flex;justify-content:center;align-items:center;width:100%;height:250px;margin-bottom:20px}.pie-chart-legend{display:flex;flex-direction:column;align-items:flex-start;margin-left:20px;max-height:250px;overflow-y:auto;padding-right:10px}.legend-item{display:flex;align-items:center;margin-bottom:5px;font-size:.85rem;color:var(--text-muted)}.legend-color-box{width:12px;height:12px;border-radius:3px;margin-right:8px;border:1px solid rgba(255,255,255,.1);flex-shrink:0}.legend-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.done-actions{width:100%;max-width:300px}