:root {
    --primary-color: #afafaf;
    --accent-color: #0074d9;
    --bg-color: #2e2d2d;
    --white: #ffffff;
    --light-gray: #848991;
    --border-color: #727070;
    --text-color: #ffffff;
    --black: #000000;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
}

header {
    background-color: var(--bg-color);
    color: var(--text-color);
    text-align: center;
    padding: 20px;
    /*box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);*/
}

main {
    max-width: 900px;
    margin: 40px auto;
    padding: 30px;
    background-color: var(--bg-color);
    /*border-radius: 10px;*/
    /*box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);*/
    text-align: center;
}

form {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}

form label {
    font-weight: 600;
}

form select,
form button {
    padding: 10px;
    font-size: 16px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

form button {
    background-color: var(--accent-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

form button:hover {
    background-color: #005fa3;
}

table {
    width: 100%;
    border-collapse: collapse;
    display: none;
}

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

th {
    background-color: var(--light-gray);
}

tr:nth-child(even) {
    background-color: #505050;
}

.loading-message {
    text-align: center;
    color: #777;
    font-style: italic;
    padding: 20px 0;
}

footer {
    text-align: center;
}
a {
    color: var(--text-color);
}