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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .dictionary-container {
            background: white;
            border-radius: 15px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            width: 100%;
            max-width: 600px;
            overflow: hidden;
        }

        .header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 30px;
            text-align: center;
        }

        .header h1 {
            font-size: 2.5em;
            margin-bottom: 10px;
            font-weight: 300;
        }

        .header p {
            opacity: 0.9;
            font-size: 1.1em;
        }

        .main-content {
            padding: 40px;
        }

        .input-group {
            margin-bottom: 30px;
        }

        .input-group label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
            color: #333;
            font-size: 1.1em;
        }

        .input-container {
            position: relative;
            display: flex;
            gap: 10px;
        }

        #termInput {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 16px;
            transition: all 0.3s ease;
            background: #f9f9f9;
        }

        #termInput:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
            background: white;
        }

        #lookupBtn {
            padding: 15px 25px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            min-width: 120px;
        }

        #lookupBtn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
        }

        #lookupBtn:active {
            transform: translateY(0);
        }

        #lookupBtn:disabled {
            background: #ccc;
            cursor: not-allowed;
            transform: none;
        }

        .result-container {
            background: #f8f9fa;
            border-radius: 10px;
            padding: 25px;
            margin-top: 20px;
            border-left: 4px solid #667eea;
            min-height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .result-container.hidden {
            display: none;
        }

        .result-container.loading {
            background: #f0f0f0;
        }

        .result-text {
            font-size: 1.1em;
            line-height: 1.6;
            color: #333;
        }

        .result-text strong {
            color: #667eea;
        }

        .loading-spinner {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid #f3f3f3;
            border-top: 3px solid #667eea;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-right: 10px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .error-message {
            color: #e74c3c;
            background: #ffeaea;
            border-left-color: #e74c3c;
        }

        .sample-terms {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }

        .sample-terms h3 {
            color: #333;
            margin-bottom: 15px;
            font-size: 1.1em;
        }

        .term-tags {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .term-tag {
            background: #e8f0fe;
            color: #667eea;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.9em;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid #d0e1ff;
        }

        .term-tag:hover {
            background: #667eea;
            color: white;
        }

        @media (max-width: 768px) {
            .dictionary-container {
                margin: 10px;
            }
            
            .input-container {
                flex-direction: column;
            }
            
            #lookupBtn {
                width: 100%;
            }
        }