* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; background-color: #f4f4f4; color: #333; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }


header { background: #fff; padding: 1rem 0; border-bottom: 1px solid #ddd; position: relative; z-index: 1000; }
header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: bold; color: #333; }
nav ul { list-style: none; display: flex; }
nav ul li { margin-left: 20px; }
nav a { text-decoration: none; color: #555; font-weight: bold; transition: color 0.3s ease; }
nav a:hover { color: #007bff; }

.hamburger-btn {
    display: none; 
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001; 
}
.hamburger-btn .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: #333;
    transition: all 0.3s ease-in-out;
}


.hamburger-btn.active .bar:nth-child(2) {
    opacity: 0;
}
.hamburger-btn.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.hamburger-btn.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}


.hero { background: #007bff; color: #fff; min-height: 60vh; display: flex; justify-content: center; align-items: center; text-align: center; padding: 2rem 0; }
.hero h1 { font-size: 3rem; margin-bottom: 1rem; }
.hero p { font-size: 1.2rem; margin-bottom: 2rem; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-button { display: inline-block; background: #fff; color: #007bff; padding: 12px 25px; text-decoration: none; border-radius: 5px; font-weight: bold; transition: background-color 0.3s ease, color 0.3s ease; }
.cta-button:hover { background-color: #f0f0f0; }
.testimonials { padding: 4rem 0; background-color: #f9f9f9; }
.testimonials h2 { text-align: center; margin-bottom: 2.5rem; font-size: 2rem; color: #333; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.testimonial-card { background: #fff; padding: 2rem; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.08); display: flex; flex-direction: column; justify-content: space-between; }
.testimonial-text { font-style: italic; color: #555; margin-bottom: 1.5rem; }
.testimonial-author { display: flex; align-items: center; gap: 15px; margin-top: auto; }
.testimonial-author img { width: 60px; height: 60px; border-radius: 50%; object-fit: cover; }
.author-info strong { display: block; color: #333; }
.author-info span { color: #777; font-size: 0.9rem; }
footer { background: #333; color: #fff; text-align: center; padding: 2rem 0; }
.social-links { margin-bottom: 1rem; }
.social-links a { color: #fff; text-decoration: none; margin: 0 10px; transition: color 0.3s ease; }
.social-links a:hover { color: #007bff; }

@media (max-width: 768px) {

    .hamburger-btn {
        display: block;
    }

  
    nav#nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(5px);
        display: flex;
        justify-content: center;
        align-items: center;
        transition: right 0.4s ease-in-out;
    }


    nav#nav-menu.active {
        right: 0; 
    }

    nav ul {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    nav ul li {
        margin-left: 0;
    }

    nav ul a {
        font-size: 1.5rem; 
    }


    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    .testimonial-grid { grid-template-columns: 1fr; }
}