body {
    font-family: Arial, sans-serif;
    background-color: #181a1b;
    color: #e0e0e0;
    margin: 0;
    padding: 0;
}

header {
    background-color: #222;
    color: #fafafa;
    padding: 1em;
    text-align: center;
}

main {
    padding: 2em;
}

.card {
    background-color: #23272a;
    color: #e0e0e0;
    padding: 1.5em;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    max-width: 600px;
    margin: auto;
}

a {
    color: #4aa3ff;
    text-decoration: none;
}

.lang-switch {
    display: flex;
    flex-direction: column;
    gap: 10px;
    justify-content: flex-end;
}

.header-title {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 0 10px;

}

button {
    margin: 0 5px;
    padding: 0.5em 1em;
    cursor: pointer;
    background-color: #23272a;
    color: #e0e0e0;
    border: 1px solid #444;
    border-radius: 4px;
    transition: background 0.2s;
}

button:hover {
    background-color: #2c3136;
}

.page-header {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 1em;
    background-color: #222;
    color: #fafafa;
}

.site-footer {
    background: #181a1b;
    color: #b0b0b0;
    text-align: center;
    padding: 2em 0 1em 0;
    margin-top: 2em;
    border-top: 1px solid #23272a;
    font-size: 0.95em;
}

.footer-validation {
    margin-bottom: 0.5em;
    display: flex;
    justify-content: center;
    gap: 1em;
}

.footer-validation img {
    vertical-align: middle;
    border-radius: 4px;
    background: #23272a;
    padding: 2px 4px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.footer-copy {
    display: block;
    margin-top: 0.5em;
    font-size: 1em;
    letter-spacing: 0.03em;
}