body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    color: #1a1a1a;
}

/* NAV */
nav {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    color: white;
}

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

nav a {
    color: white;
    text-decoration: none;
}

/* HERO */
.hero {
    background: linear-gradient(135deg, #0a2540, #1d4ed8);
    color: white;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.hero-content {
    margin: auto;
    text-align: center;
}

.hero h1 {
    font-size: 40px;
}

.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 25px;
    background: #22c55e;
    color: white;
    text-decoration: none;
    border-radius: 6px;
}

/* SECTIONS */
.section {
    padding: 60px 20px;
    text-align: center;
}

.dark {
    background: #f1f5f9;
}

/* CARDS */
.cards {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.card {
    background: white;
    padding: 20px;
    width: 250px;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0,0,0,0.1);
}

/* FORM */
form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 400px;
    margin: auto;
}

input, textarea {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
}

button {
    padding: 12px;
    background: #1d4ed8;
    color: white;
    border: none;
    border-radius: 6px;
}

/* FOOTER */
footer {
    background: #0a2540;
    color: white;
    text-align: center;
    padding: 20px;
}