:root {
    color-scheme: light;

    --bg:         #ffffff;
    --fg:         #111111;
    --muted:      #666666;
    --faint:      #999999;
    --rule:       #cccccc;
    --rule-soft:  #e8e8e8;
    --code-bg:    #f4f4f4;
    --link:       #0000ee;
    --link-visit: #551a8b;

    --accent:     #a03c00;
    --search:     #ffe08a;
    --search-fg:  #111111;

    --topbar-h: calc(3em + 1px);
    --col: 54em;
    --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Monaco,
        "Cascadia Mono", "DejaVu Sans Mono", "Liberation Mono",
        Consolas, monospace;

    --icon-lens: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round'%3E%3Ccircle cx='10.5' cy='10.5' r='6.5'/%3E%3Cpath d='M15.2 15.2L21 21'/%3E%3C/svg%3E") center/contain no-repeat;
    --icon-cross: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M5 5l14 14M19 5L5 19'/%3E%3C/svg%3E") center/contain no-repeat;
}

:root[data-theme="dark"] {
    color-scheme: dark;

    --bg:         #101010;
    --fg:         #e6e6e6;
    --muted:      #a2a2a2;
    --faint:      #767676;
    --rule:       #3a3a3a;
    --rule-soft:  #262626;
    --code-bg:    #1b1b1b;
    --link:       #8cb4ff;
    --link-visit: #c3a1f0;

    --accent:     #ff9552;
    --search:     #b58900;
    --search-fg:  #101010;
}

*,
*::before,
*::after { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
    font-family: var(--mono);
    font-size: 15px;
    line-height: 1.55;
    margin: 0;
    color: var(--fg);
    background: var(--bg);
    -webkit-text-size-adjust: 100%;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--bg);
    border-bottom: 1px solid var(--rule);
}

.topbar-inner {
    max-width: var(--col);
    margin: 0 auto;
    padding: 0 1.2em;
    height: 3em;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5em;
}

.brand {
    font-size: 1.05em;
    font-weight: 700;
    color: var(--fg);
    text-decoration: none;
    white-space: nowrap;
}

.brand-mark {
    color: var(--faint);
    margin-right: 0.15em;
    font-weight: 400;
}

.brand:hover { text-decoration: underline; }

.topnav {
    display: flex;
    align-items: center;
    gap: 1.1em;
    font-size: 0.85em;
}

.topnav a { color: var(--muted); }
.topnav a:visited { color: var(--muted); }

main {
    max-width: var(--col);
    margin: 0 auto;
    padding: 2em 1.2em 4em;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin: 2em 0 0.6em;
}

h1 { font-size: 1.25em; }
h2 { font-size: 1.1em; }
h3 { font-size: 1em; }
h4, h5, h6 { font-size: 0.95em; color: var(--muted); }

.post > article > *:first-child { margin-top: 0; }

p { margin: 0 0 1.1em; }

a {
    color: var(--link);
    text-underline-offset: 2px;
}

a:visited { color: var(--link-visit); }

ul, ol {
    margin: 0 0 1.1em;
    padding-left: 1.4em;
}

li { margin: 0.2em 0; }

pre, code {
    font-family: var(--mono);
    font-size: 0.9em;
}

code { background: var(--code-bg); }

pre {
    background: var(--code-bg);
    margin: 0 0 1.3em;
    padding: 0.8em 0.9em;
    line-height: 1.45;
    overflow-x: auto;
}

pre code { background: none; }

blockquote {
    margin: 0 0 1.1em;
    padding-left: 0.9em;
    border-left: 2px solid var(--rule);
    color: var(--muted);
}

img { max-width: 100%; }

hr {
    border: none;
    border-top: 1px solid var(--rule);
    margin: 2.2em 0;
}

.search-wrap {
    position: sticky;
    top: var(--topbar-h);
    z-index: 5;

    margin: 0 0 1.6em;
    padding: 0.8em 0 0.7em;
    background: var(--bg);
    border-bottom: 1px solid var(--rule-soft);
}

.search-box {
    position: relative;
    max-width: 34em;
    margin: 0 auto;
}

#searchbar {
    display: block;
    width: 100%;
    -webkit-appearance: none;
    appearance: none;

    font-family: inherit;
    font-size: 1em;
    line-height: 1.6;
    color: var(--fg);

    padding: 0.35em 2.3em 0.35em 0.7em;

    background: var(--bg);
    border: 1px solid var(--rule);
    border-radius: 0;
    outline: none;
}

#searchbar::placeholder { color: var(--faint); }

#searchbar:focus { border-color: var(--muted); }

.search-icon {
    position: absolute;
    right: 0.75em;
    top: 50%;
    transform: translateY(-50%);

    width: 1em;
    height: 1em;
    pointer-events: none;

    background-color: var(--faint);
    -webkit-mask: var(--icon-lens);
    mask: var(--icon-lens);
}

#searchbar:focus ~ .search-icon { background-color: var(--muted); }

#searchbar::-webkit-search-cancel-button {
    -webkit-appearance: none;
    width: 0.75em;
    height: 0.75em;
    cursor: pointer;

    background-color: var(--faint);
    -webkit-mask: var(--icon-cross);
    mask: var(--icon-cross);
}

.tag {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;

    color: var(--faint);
    background: none;
    border: 0;
    padding: 0;

    cursor: pointer;
    white-space: nowrap;
    transition: color .12s ease;
}

.tag:hover {
    color: var(--fg);
    text-decoration: underline;
}

.tag.is-on {
    color: var(--accent);
    text-decoration: underline;
}

.tagbar {
    text-align: center;
    margin: 0.7em auto 0;
    font-size: 0.85em;
    line-height: 1.7;
}

.tagbar-label {
    color: var(--faint);
    margin-right: 0.6em;
}

.tag-clear {
    font-family: inherit;
    font-size: inherit;
    color: var(--accent);
    background: none;
    border: 0;
    padding: 0;
    margin-left: 0.9em;
    cursor: pointer;
}

.tag-clear::before {
    content: "×";
    margin-right: 0.25em;
}

.tag-clear:hover { text-decoration: underline; }

.sep {
    color: var(--rule);
    margin: 0 0.5em;
}

#list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.post-item {
    position: relative;

    display: grid;
    grid-template-columns: max-content 1fr;
    column-gap: 1.4em;

    margin: 0 0 1.1em;
    padding: 0.3em 0.5em 0.35em 0.7em;

    border-left: 2px solid transparent;

    scroll-margin-top: calc(var(--topbar-h) + 4.2em);
}

.post-item:hover { background: var(--code-bg); }

.post-item.is-active {
    background: var(--code-bg);
    border-left-color: var(--fg);
}

.post-date {
    font-size: 0.85em;
    color: var(--faint);
    font-variant-numeric: tabular-nums;
    padding-top: 0.2em;
}

.post-link,
.post-link:visited,
.post-link:hover,
.post-link:focus {
    display: block;
    text-decoration: none;
    color: inherit;
}

.post-link { min-width: 0; }

.post-link::after {
    content: "";
    position: absolute;
    inset: 0;
}

.post-title {
    font-size: 1.05em;
    font-weight: 600;
    margin: 0;
    line-height: 1.35;
}

.post-desc {
    display: block;
    max-width: 58ch;
    margin-top: 0.15em;
    padding-left: 1.2em;

    font-size: 0.95em;
    font-weight: 400;
    color: var(--muted);
    line-height: 1.5;
    overflow-wrap: break-word;
}

.post-meta {
    grid-column: 2;
    position: relative;
    z-index: 1;

    display: flex;
    align-items: center;
    flex-wrap: wrap;

    margin-top: 0.4em;
    font-size: 0.85em;
}

@media (max-width: 34em) {
    .post-item { grid-template-columns: 1fr; }

    .post-meta { grid-column: 1; }

    .post-date { padding-top: 0; }

    .post-desc { padding-left: 0; }
}

.empty {
    font-size: 0.85em;
    color: var(--faint);
    padding: 1.2em 0.7em;
    margin: 0;
}

.hints {
    font-size: 0.75em;
    color: var(--faint);
    text-align: center;
    margin: 2em 0 0;
    padding: 0.7em 0 0;
    border-top: 1px solid var(--rule-soft);
}

.hints kbd {
    font-family: inherit;
    font-size: 1em;
    color: var(--muted);
    background: var(--bg);
    border: 1px solid var(--rule);
    border-radius: 0;
    padding: 0 0.3em;
}

@media (hover: none) and (pointer: coarse) {
    .hints { display: none; }
}

.post-head {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    margin: 0;
}

.post-head h1 { margin: 0; }

.post-head time {
    font-size: 0.85em;
    color: var(--faint);
    font-variant-numeric: tabular-nums;
}

.post-rule {
    margin: 1.1em 0 1.6em;
    border-top-color: var(--rule-soft);
}

.post-footer {
    margin-top: 3em;
    padding-top: 1em;
    border-top: 1px solid var(--rule);
    font-size: 0.85em;
}

.post-footer a { color: var(--muted); }

::selection {
    background: var(--accent);
    color: var(--bg);
}

::highlight(vim-search) {
    background: var(--search);
    color: var(--search-fg);
}

/*
* the cursor is a box laid over one character, inverting whatever is
* underneath it — which is how a block cursor looks in a terminal, and
* keeps it legible on the page background, on code and on a selection.
* */
.vim-cursor {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 8;

    pointer-events: none;
    -webkit-backdrop-filter: invert(1);
    backdrop-filter: invert(1);
}

@supports not ((backdrop-filter: invert(1)) or (-webkit-backdrop-filter: invert(1))) {
    .vim-cursor {
        background: var(--accent);
        opacity: 0.4;
    }
}

.vim-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;

    background: var(--bg);
    border-top: 1px solid var(--rule);
    font-size: 0.8em;
    line-height: 1.9;
}

.vim-bar-inner {
    display: flex;
    align-items: center;
    gap: 0.9em;

    height: 2.2em;
    padding: 0 1em;

    line-height: 1;
    white-space: nowrap;
}

/* the command line takes the whole bar, the way vim's does */
.vim-bar.is-cmd .vim-file,
.vim-bar.is-cmd .vim-hint,
.vim-bar.is-cmd .vim-msg { display: none; }

.vim-file { color: var(--muted); }

.vim-hint { color: var(--faint); }

.vim-hint kbd {
    font-family: inherit;
    font-size: 1em;
    color: var(--muted);
    border: 1px solid var(--rule);
    padding: 0 0.3em;
}

.vim-msg { color: var(--fg); }
.vim-msg:empty { display: none; }
.vim-msg.is-error { color: var(--accent); }
.vim-msg.is-warn { color: var(--muted); }
.vim-msg.is-mode { font-weight: 700; }

.vim-cmdline {
    display: flex;
    align-items: center;
    gap: 0.1em;
    flex: 1;
    min-width: 0;
}

.vim-cmd {
    flex: 1;
    min-width: 0;
    -webkit-appearance: none;
    appearance: none;

    /* the shorthand, so the input cannot fall back to the UA font */
    font: inherit;
    color: var(--fg);
    caret-color: var(--fg);

    background: none;
    border: 0;
    outline: none;
    padding: 0;
    margin: 0;
    height: 1.6em;
}

.vim-ruler {
    display: flex;
    gap: 1.4em;
    margin-left: auto;

    color: var(--muted);
    font-variant-numeric: tabular-nums;
}

.vim-show {
    min-width: 3em;
    text-align: right;
    color: var(--faint);
}

.vim-pos { min-width: 5em; }

.vim-pct {
    min-width: 2.5em;
    text-align: right;
}

.vim-help {
    position: fixed;
    inset: 0;
    z-index: 30;

    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2em 1.2em;

    background: color-mix(in srgb, var(--bg) 82%, transparent);
}

.vim-help-panel {
    max-width: var(--col);
    max-height: 100%;
    overflow-y: auto;

    padding: 1.3em 1.5em;
    background: var(--bg);
    border: 1px solid var(--rule);
}

.vim-help-title {
    margin: 0 0 0.9em;
    font-size: 1em;
}

.vim-help-title::before {
    content: "~ ";
    color: var(--faint);
    font-weight: 400;
}

.vim-help-box {
    columns: 2;
    column-gap: 2.4em;
    font-size: 0.85em;
}

.vim-help-box section {
    break-inside: avoid;
    margin: 0 0 1.1em;
}

.vim-help-box h3 {
    margin: 0 0 0.35em;
    font-size: 1em;
    font-weight: 400;
    color: var(--faint);
}

.vim-help-box dl {
    display: grid;
    grid-template-columns: max-content 1fr;
    column-gap: 1.2em;
    row-gap: 0.2em;
    margin: 0;
}

.vim-help-box dt {
    display: flex;
    gap: 0.3em;
}

.vim-help-box dd {
    margin: 0;
    color: var(--muted);
}

.vim-help-box kbd {
    font-family: inherit;
    font-size: 1em;
    color: var(--fg);
    border: 1px solid var(--rule);
    padding: 0 0.3em;
}

.vim-help-foot {
    margin: 0.6em 0 0;
    padding-top: 0.7em;
    border-top: 1px solid var(--rule-soft);

    font-size: 0.75em;
    color: var(--faint);
}

@media (max-width: 34em) {
    .vim-help-box { columns: 1; }
}

@media (hover: none) and (pointer: coarse) {
    .vim-cursor,
    .vim-bar,
    .vim-help { display: none !important; }
}