/* 🧱 theme-brutal.css: Brutalist minimal — zero dependencies, zero CDN, zero JS */

:root {
  /* Colors */
  --ink: #000000;
  --paper: #ffffff;
  --slab: #f2f2f2;
  --inverse-ink: #ffffff;
  --inverse-paper: #000000;

  /* Typography — system stacks only */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  /* Layout */
  --max-width: 760px;
  --rule: 4px;
  --spacing: 1rem;
}

/* Invert the slab with the page when the OS asks for dark. No JS, no
   duplication — the whole theme is two color tokens. */
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ffffff;
    --paper: #000000;
    --slab: #1a1a1a;
    --inverse-ink: #000000;
    --inverse-paper: #ffffff;
  }
}

/* Terminal palettes — explicit color overrides, opt-in via frontmatter:
   `palette: mac|unix|pwsh` with template theme-brutal.html. Declared after
   the dark-mode block so a chosen palette always wins over the ambient
   scheme. Every rule is pure token swap; the brutalist mechanics (inverted
   code blocks, inverted strong, ink-on-paper tables) keep working. */
.palette-mac {
  /* macOS Terminal "Basic" — graphite on flat white */
  --ink: #3a3a3c;
  --paper: #ffffff;
  --slab: #f2f2f7;
  --inverse-ink: #f5f5f7;
  --inverse-paper: #1d1d1f;
}

.palette-unix {
  /* Classic xterm green on black */
  --ink: #9dff9d;
  --paper: #0b0b0b;
  --slab: #10210f;
  --inverse-ink: #33ff66;
  --inverse-paper: #111811;
}

.palette-pwsh {
  /* PowerShell default: Windows Terminal blue title bar */
  --ink: #f7f7f8;
  --paper: #012456;
  --slab: #0a316e;
  --inverse-ink: #012456;
  --inverse-paper: #e8eef8;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

::selection {
  background: var(--ink);
  color: var(--paper);
}

a:focus-visible,
button:focus-visible,
:focus-visible {
  outline: var(--rule) solid var(--ink);
  outline-offset: 2px;
}

.brutal-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing);
}

/* Top label strip */
.brutal-overline {
  border-top: var(--rule) solid var(--ink);
  border-bottom: var(--rule) solid var(--ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  padding: 0.5rem 0;
  text-transform: uppercase;
}

/* Header slab */
.brutal-header {
  border-bottom: calc(var(--rule) * 2) solid var(--ink);
  margin-bottom: calc(var(--spacing) * 2);
  padding-bottom: var(--spacing);
}

.brutal-title {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.02;
  margin: 0 0 var(--spacing);
}

.brutal-deck {
  border-left: calc(var(--rule) * 2) solid var(--ink);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 var(--spacing);
  padding-left: var(--spacing);
}

.brutal-date {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.12em;
  margin: 0;
  text-transform: uppercase;
}

/* Body content */
.brutal-body {
  font-size: 1.125rem;
}

.brutal-body h1,
.brutal-body h2,
.brutal-body h3,
.brutal-body h4,
.brutal-body h5,
.brutal-body h6 {
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: calc(var(--spacing) * 2.5) 0 var(--spacing);
}

.brutal-body h2 {
  border-bottom: 2px solid var(--ink);
  font-size: 2rem;
  padding-bottom: calc(var(--spacing) / 2);
}

.brutal-body h3 {
  font-size: 1.5rem;
}

.brutal-body h4 {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  text-transform: uppercase;
}

.brutal-body h5,
.brutal-body h6 {
  font-family: var(--font-mono);
  font-size: 1rem;
}

.brutal-body p {
  margin: 0 0 calc(var(--spacing) * 1.5);
}

.brutal-body a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.brutal-body a:hover {
  background: var(--ink);
  color: var(--paper);
}

.brutal-body strong {
  background: var(--ink);
  color: var(--paper);
  font-weight: 700;
  padding: 0 0.25em;
}

.brutal-body em {
  font-style: italic;
}

.brutal-body ul,
.brutal-body ol {
  margin: 0 0 calc(var(--spacing) * 1.5);
  padding-left: 1.75em;
}

.brutal-body li {
  margin-bottom: 0.5rem;
}

.brutal-body ul li::marker {
  content: "▮ ";
  font-weight: 900;
}

.brutal-body blockquote {
  background: var(--slab);
  border: var(--rule) solid var(--ink);
  font-weight: 600;
  margin: 0 0 calc(var(--spacing) * 1.5);
  padding: var(--spacing);
}

.brutal-body blockquote p {
  margin: 0 0 var(--spacing);
}

.brutal-body blockquote p:last-child {
  margin-bottom: 0;
}

.brutal-body pre {
  background: var(--inverse-paper);
  border: var(--rule) solid var(--ink);
  color: var(--inverse-ink);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0 0 calc(var(--spacing) * 1.5);
  overflow-x: auto;
  padding: var(--spacing);
}

.brutal-body code {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0.1em 0.35em;
}

.brutal-body pre code {
  background: none;
  color: inherit;
  font-size: 1em;
  padding: 0;
}

.brutal-body table {
  border-collapse: collapse;
  font-size: 0.9375rem;
  margin: 0 0 calc(var(--spacing) * 1.5);
  width: 100%;
}

.brutal-body th,
.brutal-body td {
  border: 2px solid var(--ink);
  padding: 0.5rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.brutal-body th {
  background: var(--ink);
  color: var(--paper);
  font-weight: 800;
  text-transform: uppercase;
}

.brutal-body tbody tr:nth-child(even) {
  background: var(--slab);
}

.brutal-body hr {
  border: none;
  border-top: calc(var(--rule) * 2) solid var(--ink);
  margin: calc(var(--spacing) * 2) 0;
}

.brutal-body img {
  border: var(--rule) solid var(--ink);
  display: block;
  height: auto;
  margin: 0 0 calc(var(--spacing) * 1.5);
  max-width: 100%;
}

.brutal-body sup {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

/* Footer bar */
.brutal-footer {
  border-top: calc(var(--rule) * 2) solid var(--ink);
  display: flex;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  gap: var(--spacing);
  justify-content: space-between;
  letter-spacing: 0.15em;
  margin-top: calc(var(--spacing) * 3);
  padding-top: var(--spacing);
  text-transform: uppercase;
}

/* Preview gallery — tile wall for comparing themes side by side */
.preview-grid {
  display: grid;
  gap: calc(var(--spacing) * 1.5);
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  margin: 0 0 calc(var(--spacing) * 1.5);
}

.preview-tile {
  border: var(--rule) solid var(--ink);
  margin: 0;
}

.preview-tile iframe {
  background: #fff;
  border: 0;
  display: block;
  height: 560px;
  width: 100%;
}

.preview-tile figcaption {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 0.35rem 0.6rem;
  text-transform: uppercase;
}

/* Print: drop the slab shading and keep the ink */
@media print {
  .brutal-overline,
  .brutal-footer {
    border-color: #000;
  }

  .brutal-body a {
    color: #000;
  }

  .brutal-body pre {
    background: #fff;
    border-color: #000;
    color: #000;
  }
}

/* Narrow viewports: let wide tables scroll instead of blowing out the
   ink-on-paper column. Tables keep their slab borders while scrolling. */
table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
}

/* Long inline code wraps instead of blowing out narrow viewports.
   Scoped away from pre > code so code fences keep horizontal scrolling. */
:not(pre) > code {
  overflow-wrap: anywhere;
}

/* Honor GFM column alignment from the renderer (align attributes);
   blanket cell text-align would otherwise flatten centered/right columns. */
th[align="center"],
td[align="center"] {
  text-align: center;
}

th[align="right"],
td[align="right"] {
  text-align: right;
}