body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f5f7fa;
}

header1 {
    background-color: #2c3e50;
    color: white;
    padding: 2rem 1rem;
    text-align: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease;
    border-top: 4px solid #3498db;
}

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

.cta {
    text-align: center;
    padding: 3rem 0;
    background-color: #f1f9ff;
    border-radius: 8px;
}

/*.btn {
    display: inline-block;
    background-color: #e74c3c;
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    transition: background-color 0.3s;
}*/

.btn:hover {
    background-color: dodgerblue;
}

.tagline-chat {
    font-size: 1.4rem;
    color: #ecf0f1;
    margin-top: 0.5rem;
}

.highlight {
    color: #3498db;
}

.logo-chat {
    font-size: 2.5rem;
    font-weight: bold;
    letter-spacing: -1px;
}

.i-letter {
    color: #3498db;
}

.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.testimonial {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    font-style: italic;
    position: relative;
}

.testimonial-author {
    font-style: normal;
    font-weight: bold;
    margin-top: 1rem;
}

footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 1.5rem;
    font-size: 0.9rem;
}
.chat-button {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
}