body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f7fa;
    color: #222;
}

/* TOP BAR */
.topbar {
    background: #1f2937;
    color: white;
    padding: 15px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: bold;
    font-size: 18px;
}

.nav a {
    color: #ccc;
    margin-left: 15px;
    text-decoration: none;
}

.nav a:hover {
    color: white;
}

/* HERO */
.hero {
    text-align: center;
    padding: 70px 20px;
    background: white;
}

.hero h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

.hero p {
    color: #666;
}

.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background: #2563eb;
    color: white;
    text-decoration: none;
    border-radius: 6px;
}

/* CARDS */
.card {
    background: white;
    margin: 20px auto;
    padding: 20px;
    width: 80%;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* GRID */
.grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 15px;
}

.box {
    background: #f3f4f6;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.link:hover {
    background: #e5e7eb;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 20px;
    color: #777;
}