body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f4f6f8;
}

/* HEADER */
header {
    background: #0f4c5c;
    color: white;
    padding: 20px;
    text-align: center;
}

/* CONTAINER */
.container {
    width: 90%;
    margin: auto;
    padding: 20px;
}

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

/* CARD */
.card {
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    transition: 0.2s;
}

.card:hover {
    transform: scale(1.02);
}

/* BUTTON */
.btn {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 12px;
    background: #0f4c5c;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

.btn:hover {
    background: #136a7a;
}

/* TABLE */
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

table th, table td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: left;
}

table th {
    background: #0f4c5c;
    color: white;
}

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