/* michalasobczak.pl — single stylesheet, no framework */

@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url(fonts/inter-latin-wght-normal.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url(fonts/inter-latin-ext-wght-normal.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Inter"; font-style: italic; font-weight: 100 900; font-display: swap;
  src: url(fonts/inter-latin-wght-italic.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Inter"; font-style: italic; font-weight: 100 900; font-display: swap;
  src: url(fonts/inter-latin-ext-wght-italic.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 400; font-display: swap;
  src: url(fonts/jetbrains-mono-latin-400-normal.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 400; font-display: swap;
  src: url(fonts/jetbrains-mono-latin-ext-400-normal.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }

/* ---------- tokens ---------- */
:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --surface-2: #efede6;
  --text: #1b1d22;
  --text-2: #3d414b;
  --muted: #646a76;
  --border: #e2dfd6;
  --border-strong: #cfcbbf;
  --accent: #1c5ea8;          /* PCB blue */
  --accent-hover: #134a87;
  --accent-soft: #e4edf8;
  --on-accent: #ffffff;
  --gold: #a87d14;            /* edge-connector brass */
  --gold-soft: #f6edd4;
  --code-bg: #f3f1ea;
  --code-text: #23262d;
  --code-border: #e4e0d4;
  --mark: #fff0b3;
  --shadow: 0 1px 2px rgb(20 20 30 / .05), 0 4px 16px rgb(20 20 30 / .05);
  --hero-overlay: linear-gradient(100deg, rgb(10 14 24 / .92) 0%, rgb(10 14 24 / .78) 55%, rgb(10 14 24 / .55) 100%);

  /* syntax */
  --hl-comment: #7b8190; --hl-keyword: #a2348f; --hl-string: #2a7a3b; --hl-number: #b35a00;
  --hl-title: #1c5ea8; --hl-attr: #8a5a00; --hl-builtin: #0f7a84; --hl-meta: #6b5fb5; --hl-var: #b0333b;

  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --radius: 10px;
  --radius-sm: 6px;
  --wrap: 1180px;
  --narrow: 760px;
  --gutter: 16px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1117; --surface: #151922; --surface-2: #1b202b; --text: #e7e9ee; --text-2: #c4c8d1; --muted: #8e95a3;
    --border: #252b37; --border-strong: #343b4a; --accent: #7cb4f5; --accent-hover: #a5cbf8; --accent-soft: #172438; --on-accent: #0e1117;
    --gold: #e2b84f; --gold-soft: #2a2411; --code-bg: #12161e; --code-text: #dde1e8; --code-border: #232a36; --mark: #5a4a12;
    --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 6px 20px rgb(0 0 0 / .25);
    --hl-comment: #7d8697; --hl-keyword: #e48fd7; --hl-string: #8fd18c; --hl-number: #f2a65e;
    --hl-title: #7cb4f5; --hl-attr: #e2c06f; --hl-builtin: #6fd1d6; --hl-meta: #b3a7f0; --hl-var: #f08a8f;
  }
}
:root[data-theme="dark"] {
  --bg: #0e1117; --surface: #151922; --surface-2: #1b202b; --text: #e7e9ee; --text-2: #c4c8d1; --muted: #8e95a3;
  --border: #252b37; --border-strong: #343b4a; --accent: #7cb4f5; --accent-hover: #a5cbf8; --accent-soft: #172438; --on-accent: #0e1117;
  --gold: #e2b84f; --gold-soft: #2a2411; --code-bg: #12161e; --code-text: #dde1e8; --code-border: #232a36; --mark: #5a4a12;
  --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 6px 20px rgb(0 0 0 / .25);
  --hl-comment: #7d8697; --hl-keyword: #e48fd7; --hl-string: #8fd18c; --hl-number: #f2a65e;
  --hl-title: #7cb4f5; --hl-attr: #e2c06f; --hl-builtin: #6fd1d6; --hl-meta: #b3a7f0; --hl-var: #f08a8f;
  color-scheme: dark;
}
:root[data-theme="light"] { color-scheme: light; }

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 84px; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 1rem/1.6 var(--font); font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, video, iframe { max-width: 100%; }
img { height: auto; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: var(--accent-hover); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
svg { width: 1.1em; height: 1.1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.wrap.narrow { max-width: calc(var(--narrow) + 2 * var(--gutter)); }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.mono { font-family: var(--mono); font-size: .85rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--surface); padding: 8px 14px; border-radius: var(--radius-sm); }
.skip:focus { left: 8px; }
.eyebrow { font-size: .78rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--gold); margin: 0 0 .6rem; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: grid; grid-template-columns: 1fr auto; grid-template-areas: "brand actions" "nav nav"; align-items: center; column-gap: 12px; }
.brand { grid-area: brand; display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); padding: 10px 0; min-width: 0; }
.mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 8px; flex: none;
  background: linear-gradient(135deg, #16385f, #1c5ea8); color: #f4d98c;
  font: 700 .8rem/1 var(--font); letter-spacing: .02em;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / .12);
}
.brand-text { display: flex; flex-direction: column; min-width: 0; }
.brand-name { font-weight: 700; font-size: 1rem; letter-spacing: -.01em; }
.brand-tag { font-size: .72rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 559px) { .brand-tag { display: none; } }
.header-actions { grid-area: actions; display: flex; gap: 4px; }
.icon-btn {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 8px; border: 0; padding: 0;
  background: transparent; color: var(--text-2); cursor: pointer; font-size: 1.05rem;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.theme-toggle .i-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .i-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .i-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .i-moon { display: none; }
}
.main-nav { grid-area: nav; margin-inline: calc(-1 * var(--gutter)); overflow-x: auto; scrollbar-width: none; border-top: 1px solid var(--border); }
.main-nav::-webkit-scrollbar { display: none; }
.main-nav ul { display: flex; gap: 2px; list-style: none; margin: 0; padding: 6px var(--gutter); }
.main-nav a {
  display: block; white-space: nowrap; padding: 6px 11px; border-radius: 999px;
  color: var(--text-2); text-decoration: none; font-size: .9rem; font-weight: 500;
}
.main-nav a:hover { background: var(--surface-2); color: var(--text); }
.main-nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); }

@media (min-width: 960px) {
  .header-inner { grid-template-columns: auto 1fr auto; grid-template-areas: "brand nav actions"; column-gap: 24px; }
  .main-nav { margin: 0; border: 0; justify-self: center; }
  .main-nav ul { padding: 0; }
  .brand-tag { display: none; }
}

/* ---------- hero ---------- */
.hero {
  position: relative; color: #f1f3f7; isolation: isolate;
  background-color: #0e1117; background-position: center; background-size: cover; background-repeat: no-repeat;
  border-bottom: 1px solid var(--border);
}
.hero-inner { padding-block: 44px 40px; }
.hero .eyebrow { color: #e9c766; }
.hero-title { margin: 0; font-size: clamp(2.1rem, 6.4vw, 3.6rem); line-height: 1.04; letter-spacing: -.035em; font-weight: 800; }
.hero-lead { max-width: 640px; margin: 14px 0 0; font-size: clamp(1rem, 2.4vw, 1.15rem); color: #c9d0dc; line-height: 1.55; }
.hero-links { display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0 0; }
.btn.ghost-dark { background: rgb(255 255 255 / .08); border-color: rgb(255 255 255 / .28); color: #f1f3f7; }
.btn.ghost-dark:hover { background: rgb(255 255 255 / .16); color: #fff; }
.hero .btn:not(.ghost-dark) { background: #e9c766; border-color: #e9c766; color: #14171d; }
.hero .btn:not(.ghost-dark):hover { background: #f4d98c; }
@media (min-width: 768px) { .hero-inner { padding-block: 72px 64px; } }

/* ---------- home ---------- */
.home-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 40px; padding-block: 28px 64px; }
@media (min-width: 1100px) { .home-layout { grid-template-columns: minmax(0, 1fr) 300px; gap: 56px; padding-top: 36px; } }
.finder { padding: 4px 0 12px; margin-bottom: 8px; }
.search {
  display: flex; align-items: center; gap: 10px; padding: 0 12px 0 14px; height: 48px;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius);
  color: var(--muted); box-shadow: var(--shadow);
}
.search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--text); font: inherit; font-size: 1rem; outline: none; height: 100%; }
.search input::-webkit-search-cancel-button { cursor: pointer; }
.kbd-hint { font: 500 .75rem var(--mono); border: 1px solid var(--border-strong); border-radius: 5px; padding: 1px 6px; color: var(--muted); }
@media (hover: none) { .kbd-hint { display: none; } }
.chips { display: flex; gap: 6px; margin-top: 12px; overflow-x: auto; scrollbar-width: none; margin-inline: calc(-1 * var(--gutter)); padding-inline: var(--gutter); }
.chips::-webkit-scrollbar { display: none; }
@media (min-width: 768px) { .chips { flex-wrap: wrap; overflow: visible; margin-inline: 0; padding-inline: 0; } }
.chip {
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  padding: 5px 12px; border-radius: 999px; border: 1px solid var(--border-strong);
  background: var(--surface); color: var(--text-2); font-size: .85rem; font-weight: 500; text-decoration: none; cursor: pointer;
}
.chip span { color: var(--muted); font-variant-numeric: tabular-nums; font-size: .78rem; }
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--text); border-color: var(--text); color: var(--bg); }
.chip[aria-pressed="true"] span { color: inherit; opacity: .7; }
.chip.small { font-size: .78rem; padding: 3px 10px; }
.finder-status { margin: 8px 0 0; font-size: .85rem; color: var(--muted); min-height: 1.2em; }
.finder-status:empty { display: none; }
.finder-status .clear { margin-left: 6px; font: inherit; font-weight: 550; color: var(--accent); background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline; text-underline-offset: .18em; }
.all-tags { margin-top: 14px; }
.all-tags summary { cursor: pointer; font-size: .88rem; font-weight: 500; color: var(--accent); }
.all-tags .tag-cloud { margin-top: 12px; }
.empty { padding: 40px 0; text-align: center; color: var(--muted); }

.group + .group { margin-top: 36px; }
.group-h { display: flex; align-items: baseline; gap: 10px; margin: 0 0 4px; font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.group-h a { color: inherit; text-decoration: none; }
.group-h a:hover { color: var(--accent); }
.group-h .count, .archive .count { font-weight: 500; letter-spacing: 0; color: var(--muted); opacity: .8; }
.post-list { list-style: none; margin: 0; padding: 0; }
.card article { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px; align-items: start; padding: 18px 0; border-bottom: 1px solid var(--border); }
.card:first-child article { border-top: 1px solid var(--border); }
.related .card:first-child article { border-top: 0; }
.card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: .8rem; color: var(--muted); }
.card-meta .cat { color: var(--gold); font-weight: 600; text-decoration: none; text-transform: uppercase; letter-spacing: .06em; font-size: .72rem; }
.card-meta .cat:hover { text-decoration: underline; }
.card-title { margin: 5px 0 0; font-size: 1.1rem; line-height: 1.35; letter-spacing: -.012em; font-weight: 650; }
.card-title a { color: var(--text); text-decoration: none; }
.card-title a:hover { color: var(--accent); }
.card-title a::after { content: ""; position: absolute; inset: 0; } /* whole card clickable */
.card article { position: relative; }
.card-meta a { position: relative; z-index: 1; }
.card-excerpt { margin: 6px 0 0; color: var(--text-2); font-size: .92rem; line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-thumb { display: block; width: 84px; aspect-ratio: 1; border-radius: var(--radius-sm); overflow: hidden; background: var(--surface-2); border: 1px solid var(--border); }
.card-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s ease; }
.card:hover .card-thumb img { transform: scale(1.04); }
.card:hover .card-title a { color: var(--accent); }
@media (min-width: 560px) {
  .card-thumb { width: 168px; aspect-ratio: 16 / 10; }
  .card-excerpt { -webkit-line-clamp: 3; }
  .card article { gap: 24px; padding: 22px 0; }
  .card-title { font-size: 1.2rem; }
}
.lang-badge { display: inline-block; font: 600 .66rem/1 var(--font); letter-spacing: .06em; padding: 3px 6px; border-radius: 4px; background: var(--gold-soft); color: var(--gold); }

.home-side { display: grid; gap: 18px; align-content: start; }
@media (min-width: 700px) and (max-width: 1099px) { .home-side { grid-template-columns: 1fr 1fr; } }
.side-box { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.side-h { margin: 0 0 12px; font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.side-box p { margin: 10px 0 0; }
.side-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.side-links a { text-decoration: none; }
.side-links a:hover { text-decoration: underline; }
.more { display: inline-flex; align-items: center; gap: 4px; font-size: .88rem; font-weight: 500; text-decoration: none; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; }
.tag-cloud a {
  display: inline-flex; gap: 5px; align-items: baseline; padding: 3px 9px; border-radius: 6px;
  background: var(--surface-2); color: var(--text-2); font-size: .82rem; text-decoration: none;
}
.tag-cloud a span { color: var(--muted); font-size: .72rem; font-variant-numeric: tabular-nums; }
.tag-cloud a:hover { background: var(--accent-soft); color: var(--accent); }
.tag-cloud.big { gap: 8px; }
.tag-cloud.big a { font-size: .95rem; padding: 6px 12px; background: var(--surface); border: 1px solid var(--border); }

/* ---------- list pages ---------- */
.list-page { padding-block: 28px 72px; max-width: calc(880px + 2 * var(--gutter)); }
.list-header { margin-bottom: 28px; }
.list-header h1 { margin: 8px 0 6px; font-size: clamp(1.9rem, 5vw, 2.6rem); letter-spacing: -.03em; line-height: 1.1; }
.list-header .lead { font-size: 1.1rem; color: var(--text-2); margin: 8px 0; }
.list-header .muted { margin: 4px 0 0; }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; font-size: .85rem; color: var(--muted); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.archive section { margin-bottom: 26px; }
.archive h2 { font-size: 1rem; margin: 0 0 8px; display: flex; gap: 10px; align-items: baseline; }
.archive h2 a { color: var(--text); text-decoration: none; }
.archive ul { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--border); }
.archive li { display: flex; gap: 14px; padding: 5px 0 5px 14px; }
.archive time { font: .8rem/1.7 var(--mono); color: var(--muted); flex: none; }
.archive li a { color: var(--text-2); text-decoration: none; }
.archive li a:hover { color: var(--accent); text-decoration: underline; }

/* ---------- post ---------- */
.post-header { padding-top: 28px; }
.post-title { margin: 12px 0 0; font-size: clamp(1.85rem, 5.2vw, 2.85rem); line-height: 1.12; letter-spacing: -.032em; font-weight: 780; text-wrap: balance; }
.post-meta { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: 16px; font-size: .88rem; color: var(--muted); align-items: center; }
.post-meta a { color: var(--text-2); text-decoration: none; font-weight: 500; }
.post-cats { display: flex; gap: 6px; flex-wrap: wrap; margin: 14px 0 0; }
.hero-wrap { max-width: calc(1060px + 2 * var(--gutter)); margin-top: 28px; }
.post-hero { margin: 0; }
.post-hero img { display: block; width: 100%; max-height: 560px; object-fit: cover; border-radius: var(--radius); }
.post-hero.portrait { text-align: center; }
.post-hero.portrait img { display: inline-block; width: auto; max-width: min(100%, 360px); max-height: none; object-fit: contain; box-shadow: var(--shadow); border-radius: var(--radius-sm); }

.post-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; max-width: calc(var(--narrow) + 2 * var(--gutter)); padding-top: 8px; }
.toc { margin: 24px 0 0; }
.toc details { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.toc summary { cursor: pointer; padding: 12px 16px; font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); list-style: none; display: flex; justify-content: space-between; }
.toc summary::-webkit-details-marker { display: none; }
.toc summary::after { content: "+"; font-size: 1rem; line-height: 1; }
.toc details[open] summary::after { content: "–"; }
.toc ol { list-style: none; margin: 0; padding: 0 16px 14px; display: grid; gap: 2px; }
.toc li a { display: block; padding: 4px 0 4px 10px; border-left: 2px solid transparent; color: var(--text-2); text-decoration: none; font-size: .88rem; line-height: 1.4; }
.toc li.l3 a { padding-left: 22px; font-size: .84rem; color: var(--muted); }
.toc li a:hover { color: var(--accent); }
.toc li a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 550; }

@media (min-width: 1180px) {
  .post-layout.has-toc { max-width: var(--wrap); grid-template-columns: minmax(0, var(--narrow)) 260px; justify-content: center; column-gap: 64px; }
  .post-layout.has-toc .toc { grid-column: 2; grid-row: 1; margin-top: 36px; }
  .post-layout.has-toc .toc details { position: sticky; top: 84px; max-height: calc(100vh - 110px); overflow: auto; background: transparent; border: 0; }
  .post-layout.has-toc .toc summary { pointer-events: none; padding: 0 0 10px; }
  .post-layout.has-toc .toc summary::after { content: none; }
  .post-layout.has-toc .toc ol { padding: 0; border-left: 1px solid var(--border); }
  .post-layout.has-toc .toc li a { margin-left: -1px; }
  .post-layout.has-toc .prose { grid-column: 1; grid-row: 1; }
  /* keep header/footer aligned with the (left-shifted) text column */
  .has-toc-page .post-header, .has-toc-page .post-footer, .has-toc-page .post-nav, .has-toc-page .related { max-width: calc(var(--narrow) + 260px + 64px + 2 * var(--gutter)); }
  .has-toc-page .post-header > *, .has-toc-page .post-footer > *, .has-toc-page .related > * { max-width: var(--narrow); }
  .has-toc-page .post-nav { grid-template-columns: repeat(2, minmax(0, calc(var(--narrow) / 2 - 6px))); }
}

/* prose */
.prose { font-size: 1.0625rem; line-height: 1.75; color: var(--text); overflow-wrap: break-word; padding-top: 12px; }
@media (min-width: 768px) { .prose { font-size: 1.125rem; } }
.prose > * { margin-block: 0; }
.prose > * + * { margin-top: 1.15em; }
.prose h2, .prose h3, .prose h4 { line-height: 1.25; letter-spacing: -.02em; font-weight: 700; position: relative; scroll-margin-top: 84px; }
.prose h2 { font-size: 1.5em; margin-top: 2em; }
.prose h3 { font-size: 1.22em; margin-top: 1.7em; }
.prose h4 { font-size: 1.05em; margin-top: 1.5em; }
.prose h2 + *, .prose h3 + *, .prose h4 + * { margin-top: .7em; }
.prose .anchor { color: var(--border-strong); text-decoration: none; font-weight: 400; opacity: 0; transition: opacity .15s; }
.prose h2:hover .anchor, .prose h3:hover .anchor, .prose .anchor:focus { opacity: 1; }
.prose .anchor:hover { color: var(--accent); }
.prose strong { font-weight: 650; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: .35em; }
.prose li::marker { color: var(--muted); }
.prose a.ext::after { content: "↗"; font-size: .75em; margin-left: .12em; color: var(--muted); text-decoration: none; display: inline-block; }
.prose hr { border: 0; border-top: 1px solid var(--border); margin-block: 2.4em; }
.prose mark { background: var(--mark); color: inherit; padding: 0 .15em; border-radius: 2px; }

.prose :not(pre) > code {
  font-family: var(--mono); font-size: .84em; padding: .14em .38em; border-radius: 5px;
  background: var(--code-bg); border: 1px solid var(--code-border); color: var(--code-text); overflow-wrap: anywhere;
}
.prose blockquote { margin-inline: 0; padding: .2em 0 .2em 1.2em; border-left: 3px solid var(--gold); color: var(--text-2); }
.prose blockquote > * + * { margin-top: .8em; }
.prose blockquote > :first-child { margin-top: 0; }
.prose blockquote cite { display: block; font-style: normal; font-size: .88em; color: var(--muted); margin-top: .6em; }
.prose blockquote.pullquote {
  border: 0; padding: 1.4em 0; text-align: center; font-size: 1.22em; line-height: 1.5; font-weight: 500; letter-spacing: -.01em;
  color: var(--text); border-block: 1px solid var(--border); margin-block: 2em;
}
.prose blockquote.pullquote p { margin: 0; }
.prose .verse { font-family: var(--mono); font-size: .9em; background: var(--gold-soft); border-radius: var(--radius-sm); padding: .9em 1.1em; white-space: pre-wrap; }

.prose figure { margin-inline: 0; }
.prose figure.image { text-align: center; }
.prose figure.image img, .prose figure.image a { display: inline-block; vertical-align: top; border-radius: var(--radius-sm); }
.prose figure.image img { border: 1px solid var(--border); background: var(--surface); }
.prose figure.align-left { float: left; max-width: 50%; margin: .3em 1.4em 1em 0; }
.prose figure.align-right { float: right; max-width: 50%; margin: .3em 0 1em 1.4em; }
@media (max-width: 560px) { .prose figure.align-left, .prose figure.align-right { float: none; max-width: 100%; margin: 1.15em 0 0; } }
.prose figcaption { margin-top: .6em; font-size: .85rem; color: var(--muted); text-align: center; line-height: 1.5; }
.prose a.zoom { cursor: zoom-in; }
.prose figure.video video { display: block; width: 100%; height: auto; border-radius: var(--radius-sm); background: #000; }
.prose figure.video-embed iframe { display: block; width: 100%; aspect-ratio: 16 / 9; height: auto; border: 0; border-radius: var(--radius-sm); background: #000; }
@media (min-width: 1180px) {
  .prose figure.image:has(img[width]) { margin-inline: 0; }
}

.prose .link-card a, .prose .file-download a {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); text-decoration: none; color: var(--text); font-weight: 600; line-height: 1.4; box-shadow: var(--shadow);
}
.prose .link-card a::before { content: "→"; color: var(--accent); font-weight: 400; }
.prose .file-download a::before { content: "⤓"; color: var(--accent); font-size: 1.2em; }
.prose .link-card a:hover, .prose .file-download a:hover { border-color: var(--accent); color: var(--accent); }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.prose table { width: 100%; border-collapse: collapse; font-size: .9em; line-height: 1.5; font-variant-numeric: tabular-nums; }
.prose th, .prose td { padding: .6em .9em; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.prose th { background: var(--surface-2); font-weight: 650; white-space: nowrap; }
.prose tr:last-child td { border-bottom: 0; }
.prose caption { caption-side: bottom; padding: .6em; font-size: .85em; color: var(--muted); }

/* code */
.code-block { position: relative; border: 1px solid var(--code-border); border-radius: var(--radius); background: var(--code-bg); overflow: hidden; }
.prose > .code-block { margin-top: 1.3em; }
.code-head {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 0 6px 0 14px; height: 34px; border-bottom: 1px solid var(--code-border);
  font: 500 .72rem var(--font); letter-spacing: .06em; text-transform: uppercase; color: var(--muted);
}
.copy {
  font: 500 .74rem var(--font); color: var(--text-2); background: transparent; border: 1px solid transparent;
  border-radius: 6px; padding: 4px 10px; cursor: pointer; letter-spacing: .02em;
}
.copy:hover { background: var(--surface); border-color: var(--code-border); color: var(--text); }
.copy.done { color: var(--hl-string); }
.code-block pre, .prose pre.preformatted {
  margin: 0; padding: 14px 16px; overflow-x: auto; tab-size: 4;
  font: .82rem/1.65 var(--mono); color: var(--code-text); background: transparent;
  scrollbar-width: thin;
}
@media (min-width: 768px) { .code-block pre { font-size: .84rem; padding: 16px 18px; } }
.prose pre.preformatted { background: var(--code-bg); border: 1px solid var(--code-border); border-radius: var(--radius); white-space: pre-wrap; }
.code-block code { font: inherit; background: none; border: 0; padding: 0; white-space: pre; }
.code-block pre:focus-visible { outline-offset: -2px; }

.hljs-comment, .hljs-quote { color: var(--hl-comment); font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-doctag, .hljs-template-tag { color: var(--hl-keyword); }
.hljs-string, .hljs-regexp, .hljs-addition, .hljs-template-variable, .hljs-char { color: var(--hl-string); }
.hljs-number, .hljs-literal, .hljs-symbol, .hljs-bullet { color: var(--hl-number); }
.hljs-title, .hljs-section, .hljs-name, .hljs-selector-id, .hljs-selector-class, .hljs-title.function_ { color: var(--hl-title); }
.hljs-attr, .hljs-attribute, .hljs-property, .hljs-selector-attr, .hljs-selector-pseudo { color: var(--hl-attr); }
.hljs-built_in, .hljs-type, .hljs-title.class_ { color: var(--hl-builtin); }
.hljs-meta, .hljs-meta .hljs-keyword, .hljs-tag { color: var(--hl-meta); }
.hljs-variable, .hljs-params, .hljs-subst, .hljs-deletion { color: var(--hl-var); }
.hljs-deletion { background: color-mix(in srgb, var(--hl-var) 12%, transparent); }
.hljs-addition { background: color-mix(in srgb, var(--hl-string) 12%, transparent); }
.hljs-emphasis { font-style: italic; }
.hljs-strong { font-weight: 700; }

/* post footer */
.post-footer { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); }
.post-tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0 0 18px; padding: 0; }
.post-tags a { font-size: .88rem; padding: 4px 10px; border-radius: 6px; background: var(--surface-2); color: var(--text-2); text-decoration: none; }
.post-tags a:hover { background: var(--accent-soft); color: var(--accent); }
.post-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: 8px;
  font: 550 .9rem var(--font); text-decoration: none; cursor: pointer;
  background: var(--accent); color: var(--on-accent); border: 1px solid var(--accent);
}
.btn:hover { background: var(--accent-hover); color: var(--on-accent); }
.btn.ghost { background: var(--surface); color: var(--text-2); border-color: var(--border-strong); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.license { margin: 18px 0 0; line-height: 1.55; overflow-wrap: anywhere; }

.post-nav { display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: 36px; }
@media (min-width: 640px) { .post-nav { grid-template-columns: 1fr 1fr; } }
.post-nav a { display: flex; flex-direction: column; gap: 4px; padding: 16px 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); text-decoration: none; color: var(--text); }
.post-nav a:hover { border-color: var(--accent); }
.post-nav .next { text-align: right; align-items: flex-end; }
.post-nav .dir { display: inline-flex; align-items: center; gap: 6px; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.post-nav .t { font-weight: 600; line-height: 1.35; }
.related { margin-top: 48px; padding-bottom: 72px; }
.related h2 { font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 0 0 4px; }
.page-post main { padding-bottom: 8px; }

/* 404 */
.notfound { padding-block: 80px 120px; }
.notfound h1 { font-size: clamp(2rem, 6vw, 3rem); margin: 0 0 10px; letter-spacing: -.03em; }
.notfound .lead { font-size: 1.1rem; color: var(--text-2); }
.notfound .btn { margin: 6px 8px 0 0; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); padding-block: 40px; font-size: .9rem; }
.footer-inner { display: grid; gap: 28px; grid-template-columns: 1fr 1fr; }
.footer-inner > div:first-child { grid-column: 1 / -1; }
@media (min-width: 900px) { .footer-inner { grid-template-columns: 2fr 1fr 1fr 1fr; } .footer-inner > div:first-child { grid-column: auto; } }
.footer-brand { font-weight: 700; margin: 0 0 4px; }
.site-footer p { margin: 0 0 6px; }
.footer-h { font-size: .74rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px !important; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.site-footer nav a { color: var(--text-2); text-decoration: none; }
.site-footer nav a:hover { color: var(--accent); text-decoration: underline; }

/* ---------- lightbox ---------- */
.lightbox { padding: 0; border: 0; background: transparent; max-width: 100vw; max-height: 100vh; width: 100vw; height: 100vh; margin: 0; }
.lightbox::backdrop { background: rgb(5 7 12 / .9); }
.lightbox[open] { display: grid; place-items: center; }
.lightbox img { max-width: calc(100vw - 32px); max-height: calc(100vh - 32px); object-fit: contain; border-radius: 4px; cursor: zoom-out; }
.lightbox-close { position: fixed; top: 12px; right: 12px; width: 44px; height: 44px; border-radius: 50%; border: 0; background: rgb(255 255 255 / .12); color: #fff; font-size: 1.6rem; line-height: 1; cursor: pointer; }
.lightbox-close:hover { background: rgb(255 255 255 / .24); }

/* ---------- motion / print ---------- */
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
@media print {
  .site-header, .site-footer, .toc, .post-nav, .related, .post-actions, .copy, .anchor, .finder, .home-side, .lightbox { display: none !important; }
  body { background: #fff; color: #000; }
  .prose a.ext::after { content: " (" attr(href) ")"; }
  .code-block { break-inside: avoid; }
}