* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: #f5f6fa;
    color: #333;
}

/* HEADER */
.header {
    background: #2c3e50;
    color: white;
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

nav .btn {
    color: white;
    text-decoration: none;
    margin-left: 10px;
    padding: 6px 12px;
    border-radius: 4px;
    background: #34495e;
}

nav .btn:hover {
    background: #1abc9c;
}

nav .danger {
    background: #e74c3c;
}

/* CONTENT */
.container {
    padding: 20px;
}

/* BUTTON */
.btn-primary {
    background: #1abc9c;
    color: white;
    padding: 6px 10px;
    text-decoration: none;
    border-radius: 4px;
}

.btn-primary:hover {
    background: #16a085;
}

/* TABLE */
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    margin-top: 15px;
}

table th, table td {
    border: 1px solid #ddd;
    padding: 8px;
}

table th {
    background: #ecf0f1;
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 10px;
    background: #ddd;
    margin-top: 40px;
}