:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --background-color: #f0f0f0;
    --text-color: #333;
    --table-header-bg: #007bff;
    --table-header-text: white;
    --card-bg: white;
    --card-shadow: rgba(0, 0, 0, 0.1);
}

body {
    font-family: Arial, sans-serif;
    background: var(--background-color);
    color: var(--text-color);
    text-align: center;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

h1 {
    margin-top: 20px;
    font-size: 36px;
    color: var(--primary-color);
    font-weight: bold;
}

h2, h3 {
    font-size: 28px;
    color: var(--text-color);
    margin-top: 10px;
}

.container {
    margin: 50px auto;
    max-width: 600px;
    background: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px var(--card-shadow);
    text-align: center;
}

.container * {
    margin-bottom: 15px;
}

form input {
    width: 100%;
    max-width: 500px;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: border-color 0.3s, box-shadow 0.3s;
}

form input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 5px var(--primary-color);
    outline: none;
}

form button {
    width: 100%;
    max-width: 500px;
    margin-top: 20px;
    padding: 15px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s, transform 0.2s;
}

form button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

form button:focus {
    outline: 2px solid var(--primary-color);
}

button {
    display: inline-block;
    padding: 10px 20px;
    margin: 10px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s, transform 0.2s;
}

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

button:active {
    transform: scale(0.95);
}

button:focus {
    outline: 2px solid var(--primary-color);
}

table {
    margin: 20px auto;
    border-collapse: collapse;
    width: 100%;
    max-width: 800px;
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 10px var(--card-shadow);
}

th, td {
    padding: 15px;
    text-align: left;
    border: none;
}

th {
    background-color: var(--table-header-bg);
    color: var(--table-header-text);
    font-size: 16px;
    text-align: center;
}

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

tr:hover td {
    background-color: #f7f7f7;
    cursor: pointer;
}