body {
    font-family: Arial, sans-serif;
    background: linear-gradient(120deg, #89f7fe, #66a6ff);
    min-height: 100vh;
}

.container {
    background: white;
    width: 80%;
    margin: 40px auto;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

h1 {
    text-align: center;
    color: #333;
}

.subtitle {
    text-align: center;
    color: #555;
    margin-bottom: 20px;
}

.form {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
}

input, select {
    padding: 10px;
    width: 180px;
}

button {
    padding: 10px 20px;
    background: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background: #45a049;
}

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

th {
    background: #4CAF50;
    color: white;
    padding: 10px;
}

td {
    padding: 10px;
    text-align: center;
    border-bottom: 1px solid #ddd;
}

.present {
    color: green;
    font-weight: bold;
}

.absent {
    color: red;
    font-weight: bold;
}
.delete-btn {
    background: #ff4d4d;
    padding: 5px 10px;
    font-size: 12px;
}

.delete-btn:hover {
    background: #cc0000;
}