* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background-color: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    width: 100%;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input:focus {
    outline: none;
    border-color: #007bff;
}

button {
    width: 100%;
    padding: 12px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

button:hover {
    background: #0056b3;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
}

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

th {
    background: #f8f9fa;
    color: #333;
    font-weight: 600;
}

.delete-btn {
    opacity: 0;
    color: #dc3545;
    cursor: pointer;
    font-weight: bold;
    transition: opacity 0.3s;
}

tr:hover .delete-btn {
    opacity: 1;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.modal-content p {
    margin-bottom: 20px;
    color: #333;
}

.modal-content button {
    width: auto;
    padding: 10px 20px;
    margin: 0 10px;
}

#cancelDelete {
    background: #6c757d;
}

#cancelDelete:hover {
    background: #5a6268;
}

/* Responsive Design */
@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 24px;
    }

    input, button {
        font-size: 14px;
    }

    th, td {
        font-size: 14px;
        padding: 10px;
    }
}