:root {
    --background-page: #f4f4f9;
    --text-color: #333;
    --border-color: #ccc;
    --primary-color: #4CAF50;
    --primary-color-hover: #45a049;
    --white-color: #ffffff;
    --feedback-color: #4CAF50;
    --feedback-background: rgba(76, 175, 80, 0.1);
    --delete-color: #f44336;
    --delete-color-hover: #e53935;
    --edit-color: #2196F3;
    --edit-color-hover: #1e88e5;
    --disabled-color: #bdbdbd;
}

body {
    font-family: Arial, sans-serif;
    background-color: var(--background-page);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.container {
    width: 90%;
    max-width: 900px;
    background-color: var(--white-color);
    padding: 25px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    text-align: center;
}

h1 {
    font-size: 28px;
    color: var(--text-color);
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    border: 1px solid var(--border-color);
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border: 1px solid var(--border-color);
    vertical-align: middle;
}

th {
    background-color: var(--primary-color);
    color: var(--white-color);
    font-weight: bold;
    text-transform: uppercase;
    text-align: center;
}

td {
    background-color: var(--white-color);
    text-align: center;
}

td a {
    display: inline-block;
    padding: 8px 15px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

td a.delete {
    background-color: var(--delete-color);
    color: var(--white-color);
}

td a.delete:hover {
    background-color: var(--delete-color-hover);
    transform: scale(1.05);
}

td a.edit {
    background-color: var(--edit-color);
    color: var(--white-color);
}

td a.edit:hover {
    background-color: var(--edit-color-hover);
    transform: scale(1.05);
}

.add-button {
    display: inline-block;
    margin-top: 25px;
    padding: 15px 30px;
    font-size: 16px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.add-button:hover {
    background-color: var(--primary-color-hover);
    transform: scale(1.05);
}

.feedback-message {
    margin-top: 20px;
    padding: 15px;
    color: var(--feedback-color);
    background-color: var(--feedback-background);
    border: 1px solid var(--feedback-color);
    border-radius: 5px;
    text-align: center;
    font-size: 14px;
}

tbody tr:nth-child(even) {
    background-color: #f9f9f9;
}

tbody tr:hover {
    background-color: #f1f1f1;
}

.pagination {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.pagination a.btn,
.pagination button.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: bold;
    text-transform: uppercase;
    text-decoration: none;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    color: var(--white-color);
    background-color: var(--primary-color);
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.pagination a.btn:hover {
    background-color: var(--primary-color-hover);
    transform: scale(1.05);
}

.pagination button.btn.disabled {
    background-color: var(--disabled-color);
    cursor: not-allowed;
    transform: none;
}

.error{
    color: var(--delete-color-hover);
}