* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        .container {
            background: white;
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            max-width: 500px;
            width: 100%;
        }
        h1 {
            text-align: center;
            color: #333;
            margin-bottom: 30px;
            font-size: 28px;
        }
        .tabs {
            display: flex;
            gap: 10px;
            margin-bottom: 30px;
        }
        .tab {
            flex: 1;
            padding: 12px;
            border: none;
            background: #f0f0f0;
            border-radius: 8px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .tab.active {
            background: #667eea;
            color: white;
        }
        .tab:hover:not(.active) {
            background: #e0e0e0;
        }
        .tab:focus {
            outline: 2px solid #667eea;
            outline-offset: 2px;
        }
        .timer-display {
            text-align: center;
            margin: 40px 0;
        }
        .time {
            font-size: 80px;
            font-weight: 700;
            color: #333;
            font-variant-numeric: tabular-nums;
        }
        .session-label {
            font-size: 18px;
            color: #666;
            margin-bottom: 10px;
        }
        .task-label-section {
            margin: 20px 0;
            text-align: center;
        }
        .task-input {
            width: 100%;
            padding: 12px;
            border: 2px solid #e5e7eb;
            border-radius: 8px;
            font-size: 14px;
            text-align: center;
        }
        .task-input:focus {
            outline: none;
            border-color: #667eea;
        }
        .controls {
            display: flex;
            gap: 15px;
            justify-content: center;
            margin-bottom: 30px;
        }
        .btn {
            padding: 15px 30px;
            border: none;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
        }
        .btn:focus {
            outline: 2px solid #333;
            outline-offset: 2px;
        }
        .btn-start {
            background: #10b981;
            color: white;
        }
        .btn-start:hover {
            background: #059669;
        }
        .btn-pause {
            background: #f59e0b;
            color: white;
        }
        .btn-pause:hover {
            background: #d97706;
        }
        .btn-reset {
            background: #ef4444;
            color: white;
        }
        .btn-reset:hover {
            background: #dc2626;
        }
        .settings {
            background: #f9fafb;
            padding: 20px;
            border-radius: 10px;
        }
        .setting-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }
        .setting-row:last-child {
            margin-bottom: 0;
        }
        .setting-label {
            font-size: 14px;
            color: #666;
            font-weight: 600;
        }
        .setting-input {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .setting-input input[type="number"] {
            width: 60px;
            padding: 8px;
            border: 2px solid #e5e7eb;
            border-radius: 6px;
            font-size: 14px;
            text-align: center;
        }
        .setting-input input[type="number"]:focus {
            outline: none;
            border-color: #667eea;
        }
        .toggle-switch {
            position: relative;
            width: 50px;
            height: 26px;
        }
        .toggle-switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }
        .toggle-slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #ccc;
            transition: 0.3s;
            border-radius: 26px;
        }
        .toggle-slider:before {
            position: absolute;
            content: "";
            height: 18px;
            width: 18px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: 0.3s;
            border-radius: 50%;
        }
        input:checked + .toggle-slider {
            background-color: #10b981;
        }
        input:checked + .toggle-slider:before {
            transform: translateX(24px);
        }
        input:focus + .toggle-slider {
            box-shadow: 0 0 0 2px #667eea;
        }
        .stats {
            margin-top: 30px;
            padding: 20px;
            background: #f9fafb;
            border-radius: 10px;
        }
        .stats-title {
            font-size: 16px;
            font-weight: 600;
            color: #333;
            margin-bottom: 15px;
            text-align: center;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 20px;
        }
        .stat-card {
            background: white;
            padding: 15px;
            border-radius: 8px;
            text-align: center;
        }
        .stat-label {
            font-size: 12px;
            color: #666;
            margin-bottom: 5px;
        }
        .stat-value {
            font-size: 24px;
            font-weight: 700;
            color: #667eea;
        }
        .history-chart {
            background: white;
            padding: 15px;
            border-radius: 8px;
            margin-top: 15px;
        }
        .chart-title {
            font-size: 12px;
            color: #666;
            margin-bottom: 10px;
            text-align: center;
        }
        .chart-bars {
            display: flex;
            align-items: flex-end;
            justify-content: space-around;
            height: 80px;
            gap: 5px;
        }
        .chart-bar-container {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .chart-bar {
            width: 100%;
            background: #667eea;
            border-radius: 4px 4px 0 0;
            min-height: 2px;
            transition: height 0.3s;
        }
        .chart-day {
            font-size: 10px;
            color: #999;
            margin-top: 5px;
        }
        .progress-bar {
            width: 100%;
            height: 8px;
            background: #e5e7eb;
            border-radius: 10px;
            overflow: hidden;
            margin: 20px 0;
        }
        .progress-fill {
            height: 100%;
            background: #667eea;
            transition: width 0.3s;
            border-radius: 10px;
        }
        .notification {
            position: fixed;
            top: 20px;
            right: 20px;
            background: white;
            padding: 20px 24px;
            border-radius: 12px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.2);
            display: none;
            align-items: center;
            gap: 15px;
            z-index: 1000;
            animation: slideIn 0.3s ease-out;
        }
        @keyframes slideIn {
            from {
                transform: translateX(400px);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }
        .notification.show {
            display: flex;
        }
        .notification-icon {
            font-size: 32px;
        }
        .notification-content {
            flex: 1;
        }
        .notification-title {
            font-weight: 600;
            color: #333;
            margin-bottom: 4px;
        }
        .notification-message {
            font-size: 14px;
            color: #666;
        }
        .notification-close {
            background: none;
            border: none;
            font-size: 20px;
            cursor: pointer;
            color: #999;
            padding: 0;
            width: 24px;
            height: 24px;
        }
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 2000;
        }
        .modal.show {
            display: flex;
        }
        .modal-content {
            background: white;
            padding: 30px;
            border-radius: 16px;
            max-width: 400px;
            width: 90%;
            text-align: center;
        }
        .modal-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #333;
        }
        .modal-message {
            font-size: 14px;
            color: #666;
            margin-bottom: 25px;
        }
        .modal-buttons {
            display: flex;
            gap: 10px;
            justify-content: center;
        }
        .modal-btn {
            padding: 10px 24px;
            border: none;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
        }
        .modal-btn-primary {
            background: #667eea;
            color: white;
        }
        .modal-btn-secondary {
            background: #e5e7eb;
            color: #333;
        }
        .keyboard-shortcuts {
            margin-top: 20px;
            padding: 15px;
            background: #f9fafb;
            border-radius: 8px;
            font-size: 12px;
            color: #666;
        }
        .shortcuts-title {
            font-weight: 600;
            margin-bottom: 8px;
            color: #333;
        }
        .shortcut-item {
            display: flex;
            justify-content: space-between;
            margin-bottom: 4px;
        }
        .shortcut-key {
            background: white;
            padding: 2px 8px;
            border-radius: 4px;
            font-family: monospace;
            border: 1px solid #e5e7eb;
        }

#__wc_fb_btn{position:fixed;bottom:18px;right:18px;z-index:99999;background:#1a1a2e;border:1px solid rgba(255,255,255,0.12);border-radius:24px;padding:8px 14px;font-size:12px;color:#e2e8f0;cursor:pointer;font-family:system-ui,-apple-system,sans-serif;box-shadow:0 4px 16px rgba(0,0,0,0.3);display:flex;align-items:center;gap:6px;transition:all 0.2s;user-select:none}
#__wc_fb_btn:hover{background:#252540;border-color:rgba(255,255,255,0.2);transform:translateY(-1px)}
#__wc_fb_panel{position:fixed;bottom:64px;right:18px;z-index:99999;background:#0f1624;border:1px solid #1a2d45;border-radius:12px;padding:16px;width:260px;box-shadow:0 8px 32px rgba(0,0,0,0.5);display:none;font-family:system-ui,-apple-system,sans-serif}
#__wc_fb_panel.open{display:block}
.__wc_fb_title{font-size:13px;color:#e2e8f0;margin-bottom:12px;font-weight:500}
.__wc_fb_emojis{display:flex;justify-content:space-around;margin-bottom:12px}
.__wc_fb_emoji{font-size:26px;cursor:pointer;padding:6px;border-radius:8px;transition:all 0.15s;border:2px solid transparent}
.__wc_fb_emoji:hover{background:rgba(255,255,255,0.08);transform:scale(1.1)}
.__wc_fb_emoji.selected{border-color:rgba(196,168,74,0.6);background:rgba(196,168,74,0.08)}
.__wc_fb_prompt{font-size:11px;color:#4a6a90;margin-bottom:6px}
.__wc_fb_ta{width:100%;background:rgba(255,255,255,0.04);border:1px solid #1e2d45;border-radius:6px;padding:8px;color:#e2e8f0;font-size:11px;font-family:system-ui,-apple-system,sans-serif;resize:none;outline:none;box-sizing:border-box;line-height:1.5}
.__wc_fb_ta:focus{border-color:#2a4060}
.__wc_fb_actions{display:flex;gap:6px;margin-top:8px;justify-content:flex-end}
.__wc_fb_skip{font-size:11px;color:#2a4060;cursor:pointer;padding:4px 8px;background:transparent;border:none}
.__wc_fb_send{font-size:11px;color:#c4a84a;background:rgba(196,168,74,0.08);border:0.5px solid rgba(196,168,74,0.3);border-radius:4px;padding:5px 12px;cursor:pointer;font-family:system-ui}
.__wc_fb_send:hover{background:rgba(196,168,74,0.15)}
.__wc_fb_thanks{text-align:center;padding:8px 0;font-size:13px;color:#4ade80}