.site-header {
    position: relative;
    z-index: 2;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 20px;
    border-bottom: 1px solid #303030;
    background: #1a1a1a;
    color: #f5f5f5;
}

.site-brand {
    flex-shrink: 0;
    color: inherit;
    font-size: 21px;
    font-weight: 700;
    text-decoration: none;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 7px;
    margin-left: auto;
}

.site-nav a,
.back-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 9px 13px;
    border: 1px solid transparent;
    border-radius: 7px;
    background: #303030;
    color: #fff;
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    text-decoration: none;
    cursor: pointer;
}

.site-nav a:hover,
.back-button:hover {
    background: #454545;
}

.site-nav a[aria-current="page"] {
    border-color: #b99bd1;
    background: #4a365a;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.site-header :focus-visible,
body :not(.secret-button):focus-visible {
    outline: 3px solid #c8a6e8;
    outline-offset: 3px;
}

button:disabled {
    cursor: wait;
    opacity: 0.6;
}

@media (max-width: 700px) {
    .site-header {
        flex-wrap: wrap;
        padding: 12px;
    }

    .site-brand {
        margin-right: auto;
    }

    .site-nav {
        order: 3;
        justify-content: flex-start;
        width: 100%;
        margin-left: 0;
    }

    .site-nav a,
    .back-button {
        min-height: 42px;
        padding: 9px 11px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}