* {
    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;
}

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

.header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.main-content {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.converter-container {
    width: 100%;
}

.input-section, .output-section {
    margin-bottom: 30px;
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: #333;
}

textarea {
    width: 100%;
    min-height: 120px;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 16px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    resize: vertical;
    outline: none;
}

textarea:focus {
    border-color: #667eea;
}

#outputText {
    background-color: #f8f9fa;
}

.conversion-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 30px 0;
}

.conversion-buttons button {
    padding: 15px 20px;
    border: none;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.conversion-buttons button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.output-actions {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.output-actions button {
    padding: 12px 25px;
    border: none;
    background: #667eea;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.output-actions button:hover {
    background: #5a6fd8;
}

footer {
    text-align: center;
    color: white;
    margin-top: 30px;
    padding: 20px;
}

@media (max-width: 768px) {
    .conversion-buttons {
        grid-template-columns: 1fr 1fr;
    }
    
    .output-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .output-actions button {
        width: 200px;
    }
}