/* ============================================================
 * Babel Arcaea Code — Prism shared Arcaea layer
 * Aligned with sakurairo-arcaea-blog-skill visual tokens.
 * ============================================================ */

:root {
    --bac-code-font: "FiraCode Nerd Font", "Fira Code", "JetBrains Mono", Consolas, monospace;
    --bac-code-radius: 10px;
    --bac-code-blur: blur(12px) saturate(130%);
    --bac-code-shadow: 0 12px 36px rgba(0, 0, 0, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

pre[class*="language-"],
.arcaea-article-content pre[class*="language-"] {
    position: relative;
    margin: 2rem 0 !important;
    padding: 1.35rem 1.5rem !important;
    overflow: auto;
    border-radius: var(--bac-code-radius) !important;
    font-family: var(--bac-code-font) !important;
    font-size: 15px !important;
    line-height: 1.7 !important;
    text-shadow: none !important;
    tab-size: 4;
    -webkit-backdrop-filter: var(--bac-code-blur);
    backdrop-filter: var(--bac-code-blur);
    box-shadow: var(--bac-code-shadow) !important;
}

code[class*="language-"],
pre[class*="language-"] code,
.arcaea-article-content pre code[class*="language-"] {
    font-family: var(--bac-code-font) !important;
    font-size: inherit !important;
    line-height: inherit !important;
    text-shadow: none !important;
    background: transparent !important;
    white-space: pre;
}

:not(pre)>code[class*="language-"] {
    border-radius: 4px;
    padding: 0.2em 0.4em;
    font-family: var(--bac-code-font) !important;
    font-size: 0.9em;
}

pre.line-numbers,
.arcaea-article-content pre.line-numbers,
.arcaea-article-content pre[class*="language-"].line-numbers {
    padding-left: 4.1em !important;
}

.line-numbers .line-numbers-rows {
    top: 1.35rem;
    left: 0;
    width: 3.2em;
    border-right-width: 1px;
    border-right-style: solid;
    border-right-color: rgba(160,220,255,0.24) !important;
    font-family: var(--bac-code-font) !important;
    line-height: 1.7 !important;
}

.line-numbers .line-numbers-rows > span {
    color: rgba(200,210,230,0.42) !important;
    display: block;
    pointer-events: none;
}

/* Use Prism's native CSS counter, not attr(data-line-number).
   The line-numbers plugin creates <span> elements; line numbers are
   rendered via ::before { content: counter(linenumber) }. */
pre.line-numbers {
    counter-reset: linenumber 0 !important;
}
.line-numbers .line-numbers-rows > span::before {
    color: inherit !important;
    content: counter(linenumber) !important;
    counter-increment: linenumber !important;
    display: block;
    text-align: right;
    padding-right: 0.8em;
}

div.code-toolbar {
    position: relative;
}

div.code-toolbar>.toolbar {
    top: 0.55rem;
    right: 0.65rem;
    opacity: 1;
}

div.code-toolbar>.toolbar>.toolbar-item {
    margin-left: 0.35rem;
}

div.code-toolbar>.toolbar button,
div.code-toolbar>.toolbar a,
div.code-toolbar>.toolbar>.toolbar-item>span {
    border-radius: 999px !important;
    padding: 0.28rem 0.62rem !important;
    font-family: var(--bac-code-font) !important;
    font-size: 12px !important;
    line-height: 1.2 !important;
    box-shadow: none !important;
    -webkit-transition: opacity 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

pre[class*="language-"] mark,
pre[class*="language-"] .line-highlight {
    margin-top: 1.35rem;
    border-radius: 6px;
}

.command-line-prompt {
    border-right-width: 1px;
    margin-right: 1em;
}

.token.tab:not(:empty)::before,
.token.cr::before,
.token.lf::before,
.token.space::before {
    opacity: 0.45;
}

pre[class*="language-"]::-webkit-scrollbar {
    height: 10px;
    width: 10px;
}

pre[class*="language-"]::-webkit-scrollbar-thumb {
    border-radius: 999px;
    border: 2px solid transparent;
    background-clip: content-box;
}

@media (prefers-reduced-motion: reduce) {

    pre[class*="language-"],
    div.code-toolbar>.toolbar button,
    div.code-toolbar>.toolbar a,
    div.code-toolbar>.toolbar span {
        transition: none !important;
        animation: none !important;
    }
}