/* General Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f9;
    color: #333;
}

/* Header */
header {
    background: #0077cc;
    color: white;
    padding: 1rem 0;
    text-align: center;
}

header h1 {
    margin-bottom: 0.5rem;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

nav ul li {
    margin: 0.5rem 1rem;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #ffdd57;
}

/* Main Content */
main {
    padding: 2rem;
    max-width: 1000px;
    margin: auto;
}

.intro {
    text-align: center;
    margin-bottom: 3rem;
}

.button {
    display: inline-block;
    background: #0077cc;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    margin-top: 1rem;
    transition: background 0.3s;
}

.button:hover {
    background: #005fa3;
}

/* Features Section */
.features h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.cards {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}

.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    padding: 1.5rem;
    flex: 1 1 250px;
    text-align: center;
}

.card h3 {
    color: #0077cc;
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background: #333;