body {
    font-family: 'Open Sans', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f2f5;
    transition: background-color 0.5s;
}
header {
    background-color: #0077b6;
    color: #fff;
    padding: 20px;
    text-align: center;
    animation: fadeInDown 1s ease-in-out;
}
nav {
    background-color: #023e8a;
    text-align: center;
    padding: 10px;
}
nav a {
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    transition: background-color 0.3s, color 0.3s;
}
nav a:hover {
    background-color: #0077b6;
    color: #ffd60a;
    border-radius: 5px;
}
.hero {
    background: linear-gradient(135deg, #48cae4, #0096c7);
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.6);
    font-size: 2rem;
    animation: fadeIn 2s ease-in-out;
}
.features {
    padding: 60px 0;
    background-color: #fff;
    animation: slideUp 1s ease-out;
}
.feature-box {
    padding: 20px;
    text-align: center;
    transition: transform 0.3s;
}
.feature-box:hover {
    transform: translateY(-10px);
}
.feature-box i {
    font-size: 50px;
    margin-bottom: 20px;
    color: #0096c7;
    transition: color 0.3s;
}
.feature-box:hover i {
    color: #0077b6;
}
.contact {
    background-color: #caf0f8;
    padding: 60px 0;
    animation: fadeInUp 1s ease-in-out;
}
footer {
    background-color: #03045e;
    color: #fff;
    text-align: center;
    padding: 20px;
    animation: fadeIn 1s ease-in-out;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}