index.css

body {
    font-family: 'Trebuchet MS', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #282c34;
    color: white;
    padding: 10px 20px;
    box-shadow: 0 10px 18px rgba(0, 0, 0, 0.2);
}

header .logo img {
    height: 120px;
    width:120px;
    filter: invert(1);
}

header nav ul {
    display: flex;
    list-style: none;
    gap: 20px;
}

header nav ul li a {
    text-decoration: none;
    font-size: 16px;
    color: white;
    transition: color 1.3s ease;
}

header nav ul li a:hover {
    color: #50d890;
}

.auth-buttons button {
    padding: 10px 15px;
    background-color: #50d890;
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.auth-buttons button:hover {
    background-color: #45c27e;
}

.container {
    text-align: center;
    padding: 20px;
}

.hero {
    background-image: url('images/hero-bg.webp');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    color: white;
    padding: 50px 20px;
}

.hero .search-bar input {
    padding: 10px;
    font-size: 16px;
    width: 70%;
    border: 2px solid #50d890;
    border-radius: 5px;
    margin-right: 10px;
}
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: #282c34;
}

html {
    scroll-behavior: smooth;
}
.hero .search-bar button {
    padding: 10px;
    font-size: 16px;
    background-color: #50d890;
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
}

.featured-courses, .categories, .testimonials {
    padding: 20px;
    margin-top: 20px;
}

.courses-grid, .categories-grid {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; 
    margin-top: 20px;
}

.course-card, .category {
    background-color: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 200px;
    transition: transform 0.3s ease, background-color 0.3s ease; 
}

.course-card:hover, .category:hover {
    transform: scale(1.05); 
    background-color: #f0f9f6; 
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.course-card button {
    margin-top: 10px;
    padding: 8px 12px;
    background-color: #50d890;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease; 
}

.course-card button:hover {
    background-color: #45c27e; 
}

.courses-grid h3, .categories-grid .category {
    font-size: 18px;
    font-weight: bold;
    color: #333;
}

.courses-grid p {
    font-size: 14px;
    color: #666;
    margin: 10px 0;
}

.testimonials {
    padding: 20px;
    margin-top: 40px;
    background-color: #f9f9f9;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.testimonials h2 {
    font-size: 24px;
    margin-bottom: 20px;
    text-align: center;
    color: #333;
}

.testimonial {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background-color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.testimonial-profile {
    width: 50px;
    height: 50px;
    margin-right: 15px;
    background-color: #ccc;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.testimonial-profile .placeholder {
    width: 30px;
    height: 30px;
    background-color: #999;
    border-radius: 50%;
}

.testimonial p {
    font-size: 16px;
    color: #555;
    flex: 1;
}

.testimonial strong {
    font-weight: bold;
}

.testimonial:hover {
    background-color: #f1f1f1;
    cursor: pointer;
    transform: scale(1.02);
    transition: background-color 0.3s, transform 0.3s;
}


footer {
    background-color: #282c34;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 20px;
}

footer ul {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 15px;
}

footer ul li a {
    text-decoration: none;
    color: white;
    transition: color 0.3s ease;
}

footer ul li a:hover {
    color: #50d890;
}

.social-icons a img {
    width: 25px;
    margin: 0 5px;
    transition: transform 0.3s ease;
}

.social-icons a img:hover {
    transform: scale(1.2);
}