:root {
    --background-page: #f4f4f9;
    --text-color: #333;
    --border-color: #ccc;
    --primary-color: #4CAF50;
    --primary-color-hover: #45a049;
    --white-color: #ffffff;
}

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: 85%;
    max-width: 700px;
    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: 26px;
    color: var(--text-color);
}

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

th, td {
    padding: 14px; /* Increased padding */
    text-align: center;
    border: 1px solid var(--border-color); /* Cell border */
}

th {
    background-color: var(--primary-color);
    color: var(--white-color);
    font-weight: bold;
}

td {
    border-bottom: 1px solid var(--border-color);
}

td a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

.icon {
    cursor: pointer;
    width: 30px;
    height: 30px;
    transition: transform 0.3s ease;
}

.icon:hover {
    transform: scale(1.2);
}

.add-button {
    display: inline-block;
    margin-top: 25px;
    padding: 12px 25px;
    font-size: 18px;
    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; /* Smooth hover color change */
}

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