/* 全域樣式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 淺色主題變數 */
    --bg-color: #ffffff;
    --text-color: #37352f;
    --text-secondary: #787774;
    --border-color: #e9e9e7;
    --border-hover: #d9d9d7;
    --card-bg: #ffffff;
    --card-hover: #f7f6f3;
    --shadow: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    /* 深色主題變數 */
    --bg-color: #1a1a1a;
    --text-color: #e8e6e3;
    --text-secondary: #a8a6a3;
    --border-color: #3d3d3d;
    --border-hover: #4d4d4d;
    --card-bg: #2d2d2d;
    --card-hover: #3d3d3d;
    --shadow: rgba(0, 0, 0, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft JhengHei', 'PingFang TC', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* 主題切換按鈕 */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-color);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--shadow);
}

.toggle-btn:hover {
    background: var(--card-hover);
    border-color: var(--border-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px var(--shadow);
}

.toggle-icon {
    font-size: 1.1rem;
}

.toggle-text {
    font-weight: 500;
}

/* 標題區域 */
header {
    text-align: center;
    margin-bottom: 60px;
}

header h1 {
    font-size: 2.8rem;
    color: var(--text-color);
    margin-bottom: 16px;
    font-weight: 700;
}

header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 麵包屑導航 */
.breadcrumb {
    margin-bottom: 20px;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.breadcrumb a:hover {
    color: var(--text-color);
    text-decoration: underline;
}

/* 主要內容區域 */
main {
    margin-bottom: 60px;
}

.notion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.notion-page {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 24px;
    transition: all 0.2s ease;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.notion-page:hover {
    box-shadow: 0 2px 8px var(--shadow);
    border-color: var(--border-hover);
    text-decoration: none;
    color: inherit;
    background: var(--card-hover);
}

.page-header {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.page-icon {
    font-size: 1.5rem;
    margin-right: 12px;
}

.page-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
}

.page-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.notion-block {
    display: flex;
    align-items: flex-start;
    padding: 6px 0;
    border-radius: 3px;
    transition: background-color 0.1s ease;
}

.notion-block:hover {
    background-color: var(--card-hover);
}

.block-icon {
    font-size: 1rem;
    margin-right: 8px;
    margin-top: 2px;
    min-width: 16px;
}

.block-content {
    flex: 1;
}

.block-title {
    font-size: 0.9rem;
    color: var(--text-color);
    font-weight: 500;
    margin-bottom: 2px;
}

.block-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* 頁尾 */
footer {
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }
    
    .theme-toggle {
        top: 15px;
        right: 15px;
    }
    
    .toggle-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .toggle-text {
        display: none;
    }
    
    header h1 {
        font-size: 2.2rem;
    }
    
    header p {
        font-size: 1rem;
    }
    
    .notion-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .notion-page {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .page-title {
        font-size: 1rem;
    }
    
    .block-title {
        font-size: 0.85rem;
    }
    
    .block-desc {
        font-size: 0.75rem;
    }
}