"""
LifeFlow AI - Theme System
提供完整的主題和樣式管理，支援動態主題切換
"""


def get_enhanced_css() -> str:
    """
    改進的 CSS 系統：
    1. ✅ 修復色調功能 - 確保主題顏色正確應用
    2. ✅ 完整支援深淺模式切換
    3. ✅ 修復 Exit 按鈕樣式（Step 2）
    4. ✅ 調整 Setting 和 Doc 按鈕位置和大小
    """
    return """
    <style>
    :root {
        /* 品牌色 - 固定不變，保持品牌識別度 */
        --primary-color: #4A90E2;
        --secondary-color: #50C878;
        --accent-color: #F5A623;
        --primary-glow: rgba(74, 144, 226, 0.3);

        /* 功能色 */
        --success-color: #7ED321;
        --warning-color: #F5A623;
        --danger-color: #FF6B6B;
    }

    /* ============= 動畫效果 ============= */
    @keyframes pulse {
        0%, 100% { transform: scale(1); }
        50% { transform: scale(1.05); }
    }
    @keyframes breathing {
        0%, 100% { box-shadow: 0 0 10px var(--agent-glow, rgba(74, 144, 226, 0.3)); }
        50% { box-shadow: 0 0 25px var(--agent-glow, rgba(74, 144, 226, 0.6)), 0 0 40px var(--agent-glow, rgba(74, 144, 226, 0.3)); }
    }
    @keyframes slide-in-left {
        from { transform: translateX(-100%); opacity: 0; }
        to { transform: translateX(0); opacity: 1; }
    }
    @keyframes fade-in {
        from { opacity: 0; }
        to { opacity: 1; }
    }
    @keyframes blink {
        0%, 49% { opacity: 1; }
        50%, 100% { opacity: 0; }
    }

    /* ============= 全域設定 ============= */
    .gradio-container {
        background: var(--background-fill-primary) !important;
    }

    /* ============= 🔧 修復：Header 標題 ============= */
    .app-header {
        text-align: center;
        padding: 40px 20px 30px 20px;
        position: relative;
    }

    .app-header h1 {
        font-size: 64px !important;
        margin: 0 !important;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        font-weight: 700 !important;
    }

    .app-header p {
        font-size: 20px !important;
        color: var(--body-text-color);
        opacity: 0.8;
        margin-top: 10px !important;
    }

    /* ============= 🔧 修復：主題切換按鈕 ============= */
    #theme-toggle {
        position: fixed !important;
        top: 20px !important;
        right: 110px !important;
        z-index: 1000 !important;
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
        max-width: 40px !important;
        padding: 0 !important;
        font-size: 18px !important;
        border-radius: 10px !important;
        background: var(--background-fill-secondary) !important;
        border: 1.5px solid var(--border-color-primary) !important;
        box-shadow: 0 2px 6px rgba(0,0,0,0.1) !important;
        transition: all 0.3s ease !important;
        cursor: pointer !important;
    }

    #theme-toggle:hover {
        transform: translateY(-2px) !important;
        box-shadow: 0 4px 10px rgba(245, 166, 35, 0.3) !important;
        background: var(--accent-color) !important;
        color: white !important;
    }

    /* ============= 🔧 修復：Settings 按鈕 ============= */
    #settings-btn {
        position: fixed !important;
        top: 20px !important;
        right: 60px !important;
        z-index: 1000 !important;
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
        max-width: 40px !important;
        padding: 0 !important;
        font-size: 18px !important;
        border-radius: 10px !important;
        background: var(--background-fill-secondary) !important;
        border: 1.5px solid var(--border-color-primary) !important;
        box-shadow: 0 2px 6px rgba(0,0,0,0.1) !important;
        transition: all 0.3s ease !important;
        cursor: pointer !important;
    }

    #settings-btn:hover {
        transform: translateY(-2px) !important;
        box-shadow: 0 4px 10px rgba(74, 144, 226, 0.3) !important;
        background: var(--primary-color) !important;
        color: white !important;
    }

    /* ============= 🔧 修復：Doc 按鈕 ============= */
    #doc-btn {
        position: fixed !important;
        top: 20px !important;
        right: 10px !important;
        z-index: 1000 !important;
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
        max-width: 40px !important;
        padding: 0 !important;
        font-size: 18px !important;
        border-radius: 10px !important;
        background: var(--background-fill-secondary) !important;
        border: 1.5px solid var(--border-color-primary) !important;
        box-shadow: 0 2px 6px rgba(0,0,0,0.1) !important;
        transition: all 0.3s ease !important;
        cursor: pointer !important;
    }

    #doc-btn:hover {
        transform: translateY(-2px) !important;
        box-shadow: 0 4px 10px rgba(74, 144, 226, 0.3) !important;
        background: var(--primary-color) !important;
        color: white !important;
    }

    /* ============= 🔧 修復：Exit 按鈕樣式 (Step 2 - 頂部獨立) ============= */
    #exit-button {
        width: 100% !important;
        height: 50px !important;
        font-size: 16px !important;
        font-weight: 600 !important;
        border-radius: 10px !important;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
        color: white !important;
        border: none !important;
        box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3) !important;
        transition: all 0.3s ease !important;
        margin-bottom: 15px !important;
        cursor: pointer;
    }

    #exit-button:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(102, 126, 234, 0.5) !important;
    }

    /* ============= 🔧 新增：Exit 按鈕樣式 (內聯版本 - 與 Ready to plan 並排) ============= */
    #exit-button-inline {
        height: 50px !important;
        font-size: 15px !important;
        font-weight: 600 !important;
        border-radius: 10px !important;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
        color: white !important;
        border: none !important;
        box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3) !important;
        transition: all 0.3s ease !important;
        cursor: pointer;
    }

    #exit-button-inline:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(102, 126, 234, 0.5) !important;
    }

    /* ============= 串流輸出框 ============= */
    .stream-container {
        background: var(--background-fill-secondary);
        border-radius: 10px;
        padding: 15px;
        min-height: 150px;
        max-height: 300px;
        overflow-y: auto;
        margin: 15px 0;
        border: 1px solid var(--border-color-primary);
        font-family: 'Monaco', 'Courier New', monospace;
        font-size: 13px;
        line-height: 1.6;
    }
    .stream-text {
        color: var(--body-text-color);
        white-space: pre-wrap;
        word-wrap: break-word;
    }
    .stream-cursor {
        display: inline-block;
        width: 8px;
        height: 16px;
        background: var(--primary-color);
        animation: blink 1s infinite;
        margin-left: 2px;
    }

    /* ============= Agent 卡片 ============= */
    .agent-card {
        background: var(--background-fill-secondary);
        border-radius: 12px;
        padding: 15px;
        margin: 10px 0;
        border-left: 4px solid var(--agent-color, var(--primary-color));
        transition: all 0.3s ease;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    .agent-card:hover {
        transform: translateX(5px);
        box-shadow: 0 4px 12px var(--agent-glow, rgba(74, 144, 226, 0.2));
    }
    .agent-card.active {
        animation: breathing 2s infinite;
        border-left-width: 6px;
    }
    .agent-header {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 8px;
    }
    .agent-avatar {
        font-size: 28px;
        filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
    }
    .agent-info h3 {
        margin: 0;
        font-size: 16px;
        color: var(--body-text-color);
    }
    .agent-role {
        font-size: 12px;
        color: var(--body-text-color);
        opacity: 0.7;
    }
    .agent-status {
        display: inline-block;
        padding: 4px 12px;
        border-radius: 12px;
        font-size: 11px;
        font-weight: 600;
        margin-top: 8px;
    }
    .status-idle {
        background: rgba(128, 128, 128, 0.2);
        color: var(--body-text-color);
    }
    .status-working {
        background: var(--primary-glow);
        color: var(--primary-color);
        animation: pulse 1.5s infinite;
    }
    .status-complete {
        background: rgba(126, 211, 33, 0.2);
        color: var(--success-color);
    }
    .agent-message {
        margin-top: 8px;
        padding: 8px;
        background: var(--background-fill-primary);
        border-radius: 6px;
        font-size: 13px;
        color: var(--body-text-color);
        opacity: 0.9;
    }

    /* ============= Task 卡片 ============= */
    .task-card {
        background: var(--background-fill-secondary);
        border-radius: 10px;
        padding: 16px;
        margin: 12px 0;
        border-left: 4px solid var(--task-priority-color, #999);
        box-shadow: 0 2px 6px rgba(0,0,0,0.08);
        transition: all 0.3s ease;
    }
    .task-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    }
    .task-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 10px;
    }
    .task-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--body-text-color);
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .task-icon {
        font-size: 24px;
    }
    .priority-badge {
        padding: 4px 12px;
        border-radius: 12px;
        font-size: 11px;
        font-weight: 700;
        text-transform: uppercase;
    }
    .priority-high {
        background: rgba(255, 107, 107, 0.2);
        color: #FF6B6B;
    }
    .priority-medium {
        background: rgba(245, 166, 35, 0.2);
        color: #F5A623;
    }
    .priority-low {
        background: rgba(126, 211, 33, 0.2);
        color: #7ED321;
    }
    .task-details {
        display: flex;
        gap: 20px;
        font-size: 13px;
        color: var(--body-text-color);
        opacity: 0.8;
        margin-top: 10px;
    }
    .task-detail-item {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    /* ============= Summary Card ============= */
    .summary-card {
        background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
        border-radius: 12px;
        padding: 20px;
        color: white;
        margin: 15px 0;
        box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
    }
    .summary-stats {
        display: flex;
        justify-content: space-around;
        margin-top: 15px;
    }
    .stat-item {
        text-align: center;
    }
    .stat-value {
        font-size: 28px;
        font-weight: bold;
        display: block;
    }
    .stat-label {
        font-size: 12px;
        opacity: 0.9;
        margin-top: 5px;
    }

    /* ============= 🔧 優化：Ready to Plan 按鈕樣式（內聯佈局） ============= */
    .ready-plan-button {
        height: 50px !important;
        font-size: 16px !important;
        font-weight: 700 !important;
        border-radius: 10px !important;
        background: linear-gradient(135deg, #50C878 0%, #7ED321 100%) !important;
        color: white !important;
        border: none !important;
        box-shadow: 0 3px 12px rgba(80, 200, 120, 0.4) !important;
        transition: all 0.3s ease !important;
        cursor: pointer;
    }

    .ready-plan-button:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 20px rgba(80, 200, 120, 0.6) !important;
        background: linear-gradient(135deg, #5DD68D 0%, #8FE63F 100%) !important;
    }

    .ready-plan-button:active {
        transform: translateY(0);
    }

    /* ============= Reasoning Timeline ============= */
    .reasoning-timeline {
        padding: 20px 0;
    }
    .reasoning-item {
        padding: 15px;
        margin: 10px 0;
        border-radius: 8px;
        background: var(--background-fill-secondary);
        border-left: 3px solid var(--agent-color, var(--primary-color));
        animation: fade-in 0.5s ease;
    }
    .reasoning-header {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 8px;
    }
    .reasoning-agent {
        font-weight: 600;
        color: var(--agent-color, var(--primary-color));
    }
    .reasoning-time {
        font-size: 11px;
        opacity: 0.6;
        margin-left: auto;
    }
    .reasoning-content {
        color: var(--body-text-color);
        opacity: 0.9;
        line-height: 1.6;
    }

    /* ============= Modal 樣式 ============= */
    .modal-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .modal-content {
        background: var(--background-fill-primary);
        border-radius: 16px;
        padding: 30px;
        max-width: 600px;
        width: 90%;
        max-height: 80vh;
        overflow-y: auto;
        box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    }

    /* ============= Responsive ============= */
    @media (max-width: 768px) {
        #top-controls {
            top: 10px;
            right: 10px;
        }
        #top-controls button {
            width: 40px !important;
            height: 40px !important;
            font-size: 18px !important;
        }
        .agent-card {
            padding: 12px;
        }
        .task-card {
            padding: 12px;
        }
    }

    /* ============= 滾動條美化 ============= */
    ::-webkit-scrollbar {
        width: 8px;
        height: 8px;
    }
    ::-webkit-scrollbar-track {
        background: var(--background-fill-secondary);
    }
    ::-webkit-scrollbar-thumb {
        background: var(--primary-color);
        border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: var(--secondary-color);
    }
    /* ============= 🔧 主題切換 - 深色模式樣式 ============= */
    .theme-dark {
        background: #1a1a1a !important;
    }

    .theme-dark .gradio-container {
        background: #1a1a1a !important;
    }

    .theme-dark [data-testid="block"] {
        background: #2d2d2d !important;
    }

    .theme-dark .gr-box,
    .theme-dark .gr-form,
    .theme-dark .gr-input,
    .theme-dark .gr-group {
        background: #2d2d2d !important;
        border-color: #444444 !important;
    }

    .theme-dark p,
    .theme-dark label,
    .theme-dark span,
    .theme-dark h1,
    .theme-dark h2,
    .theme-dark h3 {
        color: #e0e0e0 !important;
    }

    .theme-dark input,
    .theme-dark textarea {
        background: #3a3a3a !important;
        color: #e0e0e0 !important;
        border-color: #555555 !important;
    }

    .theme-dark button {
        background: #3a3a3a !important;
        color: #e0e0e0 !important;
        border-color: #555555 !important;
    }

    /* 保持品牌色按鈕的顏色 */
    .theme-dark #exit-button,
    .theme-dark #exit-button-inline,
    .theme-dark .ready-plan-button,
    .theme-dark #theme-toggle,
    .theme-dark #settings-btn,
    .theme-dark #doc-btn {
        /* 保持原有的漸變色 */
        filter: brightness(0.9);
    }
    </style>

    <script>
    // 主題切換功能 - 頁面載入時執行
    (function() {
        // 等待 Gradio 完全載入
        function initTheme() {
            const savedTheme = localStorage.getItem('lifeflow-theme');
            console.log('Initializing theme, saved:', savedTheme);

            if (savedTheme === 'dark') {
                const container = document.querySelector('.gradio-container');
                if (container) {
                    container.classList.add('theme-dark');
                    document.body.classList.add('theme-dark');
                    console.log('Dark theme applied on load');
                } else {
                    // 如果還沒找到容器，稍後再試
                    setTimeout(initTheme, 100);
                }
            }
        }

        // 頁面載入完成後執行
        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', initTheme);
        } else {
            initTheme();
        }

        // 也在 window load 時再次檢查
        window.addEventListener('load', initTheme);
    })();
    </script>
    """