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

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.main_container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

header {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1vh;
    background-color: #34495e;
    color: whitesmoke;
    padding: 1%;
}

nav {
    margin-top: 3vh;
    background-color: #34495e;
    color: white;
    padding: 15px 0;
    margin-bottom: 20px;
}

nav ul {
    margin-left: 20vw;
    margin-right: 20vw;
    list-style: none;
    text-align: center;
    display: flex;
    justify-content: space-around;
}

nav ul li a {
    text-decoration: none;
    color: white;
    padding: 9px 15px;
    border-radius: 2px;
}

nav ul li a:hover,
nav ul li a.active {
    background-color: #3498db;
}

.btn {
    font-weight: bold;
    padding: 15px 30px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.3s;
    width: fit-content;
}

.btn-success {
    text-decoration: none;
    border: none;
    background-color: #27ae60;
    color: white;
    border-radius: 5px;
    padding: 8px 10px;
}

.btn-success:hover {
    background-color: #229954;
}

.btn-danger {
    background-color: #e74c3c;
    color: white;
    padding: 8px 10px;
    border-radius: 5px;
    border: none;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-primary {
    background-color: #3498db;
    color: white;
    padding: 8px 10px;
    border-radius: 5px;
    border: none;
}

.btn-primary:hover {
    background-color: #2980b9;
}

footer {
    margin-bottom: 20px;
}

.table-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    overflow-x: auto;
    width: 60vw;
}

.table-container h2 {
    margin-bottom: 20px;
    color: #2c3e50;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table thead {
    background-color: #34495e;
    color: white;
}

table th,
table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

table tbody tr:hover {
    background-color: #f8f9fa;
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #3498db;
}

input{
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

input:focus{
    outline: none;
    border-color: #3498db;
}