* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #302f2f;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;  
        }

        .container {
            max-width: 900px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(10px);
            overflow: hidden;
            padding: 20px;
        }
         
        .back-button {
            background: linear-gradient(45deg, #3498db, #2980b9);
            color:white; padding:12px 25px; border-radius:25px;
            text-decoration:none; margin-bottom:30px; display:inline-block;
        }

        .header {
            text-align: center;
            color: rgb(67, 64, 64);
        }

        .header h1 {
            font-size: 3em;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(29, 16, 44, 0.3);
        }

        .header p {
            font-size: 1.2em;
            opacity: 0.9;
        }

        .content {
            padding: 40px;
        }

        .section {
            margin-bottom: 40px;
            padding: 30px;
            background: rgba(251, 251, 251, 0.972);
            border-radius: 15px;
            border-left: 5px solid #2980b9;
            transition: transform 0.3s ease;
        }

        .section:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }

        .section h2 {
            color: #2c3e50;
            margin-bottom: 20px;
            font-size: 2em;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .icon {
            font-size: 1.2em;
        }

        .table-pronouns {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
        }

        .table-pronouns th, .table-pronouns td {
            border: 1px solid #ddd;
            padding: 12px;
            text-align: center;
        }

        .table-pronouns th {
            background: #3498db;
            color: white;
        }

        .examples-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 20px 0;
        }

        .example-card {
            background: linear-gradient(135deg, #f6f6f6 0%, #ffffff 100%);
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .example-card h4 {
            color: #2c3e50;
            margin-bottom: 10px;
        }

        .example-card p {
            margin: 5px 0;
            font-size: 1.1em;
        }

        .key-points {
            background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
            padding: 30px;
            border-radius: 15px;
            margin: 20px 0;
        }

        .key-points li {
            margin: 10px 0;
            padding: 10px;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 8px;
            border-left: 4px solid #ff6b6b;
            font-weight: 500;
        }

        .activity {
            background: linear-gradient(135deg, #d299c2 0%, #fef9d7 100%);
            padding: 30px;
            border-radius: 15px;
            margin: 20px 0;
        }

        .question {
            background: rgba(255, 255, 255, 0.7);
            padding: 15px;
            margin: 15px 0;
            border-radius: 8px;
            border-left: 4px solid #9b59b6;
        }

        .input-field {
            width: 100%;
            padding: 10px;
            margin: 10px 0;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 1em;
        }

        .check-btn {
            background: linear-gradient(135deg, #36d1dc 0%, #5b86e5 100%);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 25px;
            cursor: pointer;
            font-size: 1em;
            transition: transform 0.2s ease;
        }

        .check-btn:hover {
            transform: scale(1.05);
        }

        .result {
            margin: 10px 0;
            padding: 10px;
            border-radius: 5px;
            font-weight: bold;
        }

        .correct {
            background: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }

        .incorrect {
            background: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
        }