/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

/* BODY */
body {
    background: linear-gradient(to right, #f8fbff, #e6f0ff);
    color: #333;
}

/* NAVBAR */
nav {
    display: flex;
    justify-content: center;
    background: #ffffff;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

nav a {
    margin: 0 15px;
    text-decoration: none;
    color: #333;
    font-weight: 600;
    position: relative;
    transition: 0.3s;
}

/* underline animation */
nav a::after {
    content: '';
    width: 0;
    height: 2px;
    background: #0077ff;
    position: absolute;
    left: 0;
    bottom: -5px;
    transition: 0.3s;
}

nav a:hover::after {
    width: 100%;
}

nav a:hover {
    color: #0077ff;
}

/* PAGE HEADER */
.page-header {
    text-align: center;
    padding: 60px 20px;
}

.page-header h1 {
    font-size: 36px;
    color: #222;
}

.page-header p {
    color: #555;
    margin-top: 10px;
}

/* SECTION */
.section {
    padding: 50px 20px;
}

/* CARDS */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-8px);
}

/* BUTTON */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #0077ff;
    color: white;
    border-radius: 8px;
    text-decoration: none;
    margin-top: 10px;
    transition: 0.3s;
}

.btn:hover {
    background: #0056cc;
}

/* CONTACT FORM */
form {
    max-width: 500px;
    margin: auto;
}

input, textarea {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 8px;
    border: 1px solid #ccc;
}

textarea {
    resize: none;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 20px;
    background: white;
    margin-top: 40px;
    color: #777;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    nav {
        flex-wrap: wrap;
    }

    nav a {
        margin: 10px;
    }

    .page-header h1 {
        font-size: 28px;
    }
}