* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #1a2a6c, #b21f1f, #1a2a6c);
            color: #fff;
            min-height: 100vh;
            padding: 20px;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        header {
            text-align: center;
            padding: 30px 0;
        }
        
        h1 {
            font-size: 3.5rem;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }
        
        .subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 20px;
        }
        
        .calculator-container {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 20px;
        }
        
        .input-section {
            flex: 1;
            min-width: 300px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        
        .output-section {
            flex: 1;
            min-width: 300px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        
        .section-title {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: #ffd700;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .section-title i {
            font-size: 1.5rem;
        }
        
        .input-group {
            margin-bottom: 20px;
        }
        
        label {
            display: block;
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        
        input, select {
            width: 100%;
            padding: 12px 15px;
            border-radius: 8px;
            border: none;
            background: rgba(255, 255, 255, 0.15);
            color: white;
            font-size: 1.1rem;
        }
        
        input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        
        .btn-group {
            display: flex;
            gap: 15px;
            margin-top: 30px;
        }
        
        button {
            flex: 1;
            padding: 15px;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            color: white;
        }
        
        #calculate-btn {
            background: linear-gradient(to right, #00c853, #009624);
        }
        
        #clear-btn {
            background: linear-gradient(to right, #ff3d00, #c30000);
        }
        
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        
        .result-container {
            background: rgba(0, 0, 0, 0.2);
            border-radius: 10px;
            padding: 20px;
            min-height: 150px;
            margin-top: 20px;
        }
        
        .result-title {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: #4fc3f7;
        }
        
        .result {
            font-size: 1.8rem;
            margin-bottom: 20px;
            min-height: 50px;
            overflow-x: auto;
            white-space: nowrap;
            padding: 10px 0;
        }
        
        .steps-container {
            margin-top: 25px;
        }
        
        .step {
            background: rgba(255, 255, 255, 0.08);
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 10px;
            font-size: 1.1rem;
        }
        
        .step-title {
            font-weight: 600;
            color: #4fc3f7;
            margin-bottom: 5px;
        }
        
        .examples {
            margin-top: 30px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 10px;
            padding: 20px;
        }
        
        .examples h3 {
            margin-bottom: 15px;
            color: #ffd700;
        }
        
        .example-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 15px;
        }
        
        .example {
            background: rgba(255, 255, 255, 0.1);
            padding: 15px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .example:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-3px);
        }
        
        .example .function {
            font-weight: 600;
            margin-bottom: 5px;
        }
        
        .example .description {
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        footer {
            text-align: center;
            margin-top: 40px;
            padding: 20px;
            font-size: 1rem;
            opacity: 0.8;
        }
        
        @media (max-width: 768px) {
            .calculator-container {
                flex-direction: column;
            }
            
            h1 {
                font-size: 2.5rem;
            }
        }