:root {
            --bg-color-light: #f4f7f9;
            --text-color-light: #eb8f8f;
            --card-bg-light: #fff;
            --button-bg-light: #FDAAAA;
            --button-text-light: #fff;
            --border-color-light: #fca1a1;
            --shadow-color-light: rgba(0, 0, 0, 0.1);
            --header-bg-light: #fff;
            --header-text-light: #FDAAAA;
        }

        [data-theme="dark"] {
            --bg-color-light: #121212;
            --text-color-light: #bb86fc;
            --card-bg-light: #1e1e1e;
            --button-bg-light: #bb86fc;
            --button-text-light: #fff;
            --border-color-light: #444;
            --shadow-color-light: rgba(255, 255, 255, 0.1);
            --header-bg-light: #1e1e1e;
            --header-text-light: #bb86fc;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: var(--bg-color-light);
            color: var(--text-color-light);
            transition: background-color 0.3s, color 0.3s;
        }

        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
        }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
            background-color: var(--header-bg-light);
            box-shadow: 0 2px 4px var(--shadow-color-light);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        header h1 {
            margin: 0;
            font-size: 24px;
            color: var(--header-text-light);
        }

        .mode-toggle {
            cursor: pointer;
            font-size: 24px;
        }

        .section {
            background-color: var(--card-bg-light);
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 4px 8px var(--shadow-color-light);
            margin-bottom: 20px;
        }

        .test-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .test-card {
            border: 1px solid var(--border-color-light);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            transition: transform 0.2s;
        }

        .test-card:hover {
            transform: translateY(-5px);
        }

        .test-card h3 {
            margin-top: 0;
            font-size: 18px;
        }

        .test-card p {
            font-size: 14px;
            color: #777;
        }
        
        [data-theme="dark"] .test-card p {
            color: #ccc;
        }

        .test-button {
            background-color: var(--button-bg-light);
            color: var(--button-text-light);
            border: none;
            padding: 10px 20px;
            border-radius: 20px;
            cursor: pointer;
            text-decoration: none;
            font-weight: bold;
            transition: background-color 0.3s;
        }

        .test-button:hover {
            opacity: 0.9;
        }

        .crisis-support {
            text-align: center;
            padding: 20px;
            background-color: #ff5722;
            color: white;
            border-radius: 12px;
        }

        .crisis-support a {
            color: white;
            font-weight: bold;
            text-decoration: none;
        }

        .test-info {
            margin-top: 20px;
        }

        .test-info h4 {
            margin-top: 15px;
            color: var(--header-text-light);
        }

        @media (max-width: 600px) {
            .test-grid {
                grid-template-columns: 1fr;
            }
        }