/* ==========================================================================
   My Brain Attic — starter theme
   --------------------------------------------------------------------------
   Direction: a warm, paper-and-ink reading theme for a personal technical
   notebook ("experience, practice, and grimoire"). Serif for prose, system
   sans for UI chrome, one brass accent, hairline rules instead of boxes.

   Structure:
     01. Design tokens
     02. Dark scheme
     03. Reset & base
     04. Layout shell
     05. Site header
     06. Home page (hero + post list)
     07. Article header
     08. Prose (headings, lists, links)
     09. Block styles: quotes, code, images, tables
     10. Table of contents
     11. Site footer
     12. Utilities & focus
     13. Responsive
     14. Print
   ========================================================================== */

/* 01. Design tokens ------------------------------------------------------- */
:root {
  color-scheme: light;

  /* Surfaces & ink */
  --paper: #f7f2e8;
  --paper-tint: #f1e9db;
  --surface: #fffdf7;
  --ink: #221e19;
  --ink-soft: #4b433a;
  --ink-muted: #6f6558;
  --rule: #ded3bf;
  --rule-strong: #c6b698;

  /* Accent */
  --accent: #8a4f1c;
  --accent-ink: #6d3d13;
  --accent-wash: rgba(138, 79, 28, 0.09);

  /* Code */
  --code-bg: #241f19;
  --code-ink: #f2e9d8;
  --code-rule: #3b332a;
  --code-accent: #e0b072;

  /* Type */
  --font-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino,
    Georgia, "Times New Roman", serif;
  --font-body: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino,
    Georgia, "Times New Roman", serif;
  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: clamp(1.15rem, 0.95rem + 0.5vw, 1.3125rem);
  --step-2: clamp(1.35rem, 1.05rem + 0.9vw, 1.625rem);
  --step-3: clamp(1.7rem, 1.25rem + 1.5vw, 2.25rem);
  --step-4: clamp(2.1rem, 1.4rem + 2.6vw, 3.25rem);

  /* Layout */
  --measure: 68ch;
  --gutter: clamp(1.15rem, 4vw, 2.75rem);
  --radius: 5px;
  --radius-lg: 8px;
  --space-1: 0.5rem;
  --space-2: 0.85rem;
  --space-3: 1.4rem;
  --space-4: 2.2rem;
  --space-5: 3.4rem;

  --shadow-card: 0 1px 2px rgba(34, 30, 25, 0.05), 0 10px 26px -18px rgba(34, 30, 25, 0.45);
  --shadow-header: 0 10px 22px -20px rgba(34, 30, 25, 0.75);
}

/* 02. Dark scheme --------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;

    --paper: #17140f;
    --paper-tint: #1e1a14;
    --surface: #221d16;
    --ink: #ece3d3;
    --ink-soft: #cabfab;
    --ink-muted: #988d7c;
    --rule: #362f26;
    --rule-strong: #4a4033;

    --accent: #dda35d;
    --accent-ink: #f0c48c;
    --accent-wash: rgba(221, 163, 93, 0.12);

    --code-bg: #100e0b;
    --code-ink: #ece3d3;
    --code-rule: #2c251d;
    --code-accent: #dda35d;

    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.4), 0 14px 30px -20px rgba(0, 0, 0, 0.9);
    --shadow-header: 0 10px 22px -18px rgba(0, 0, 0, 1);
  }
}

/* 03. Reset & base ------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  background-color: var(--paper);
  background-image: radial-gradient(
    120% 90% at 50% -20%,
    var(--paper-tint) 0%,
    var(--paper) 62%
  );
  background-repeat: no-repeat;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
svg,
video {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent-ink);
  text-decoration-color: var(--rule-strong);
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

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

/* 04. Layout shell ------------------------------------------------------- */
.site {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.wrapper {
  width: 100%;
  max-width: calc(var(--measure) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-content {
  flex: 1 1 auto;
  padding-block: clamp(2rem, 5vw, 3.5rem) clamp(2.5rem, 6vw, 4.5rem);
}

.content-area,
.site-main {
  min-width: 0;
}


/* 05. Site header ------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--rule);
  background: var(--paper-tint);
  box-shadow: var(--shadow-header);
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2) var(--space-3);
  padding-block: var(--space-2);
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  text-decoration: none;
}

.site-brand:hover {
  color: var(--ink);
}

.site-brand__mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--rule-strong);
  background: var(--surface);
  padding: 2px;
  object-fit: contain;
  flex: none;
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-title {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.site-tagline {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-ui);
  font-size: var(--step--1);
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-block: 0.25rem;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--accent-ink);
  border-bottom-color: var(--accent);
}

/* 06. Home page --------------------------------------------------------- */
/* Optional patterns, currently unused in markup but kept for reuse:
   .home-hero__eyebrow, .home-hero__note, .section-label. */
.home-hero {
  padding-block: clamp(1rem, 4vw, 2rem) clamp(1.5rem, 5vw, 3rem);
  border-bottom: 1px solid var(--rule);
}

.home-hero__eyebrow {
  margin: 0 0 var(--space-2);
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.home-hero__title {
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0;
  text-wrap: balance;
}

.home-hero__lede {
  margin: var(--space-3) 0 0;
  max-width: 48ch;
  font-size: var(--step-1);
  line-height: 1.55;
  color: var(--ink-soft);
}

.home-hero__note {
  margin: var(--space-3) 0 0;
  max-width: 54ch;
  font-family: var(--font-ui);
  font-size: var(--step--1);
  line-height: 1.5;
  color: var(--ink-muted);
  border-left: 2px solid var(--rule-strong);
  padding-left: var(--space-2);
}

.section-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-4) 0 var(--space-2);
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.section-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.post-list__item + .post-list__item {
  border-top: 1px solid var(--rule);
}

.post-card {
  display: block;
  padding-block: var(--space-4);
  color: var(--ink);
  text-decoration: none;
}

.post-card:hover {
  color: var(--ink);
}

.post-card__date {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.post-card__title {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: var(--space-1) 0 0;
  text-wrap: balance;
}

.post-card:hover .post-card__title {
  color: var(--accent-ink);
}

.post-card__excerpt {
  margin: var(--space-1) 0 0;
  max-width: 56ch;
  color: var(--ink-soft);
}

.post-card__more {
  display: inline-block;
  margin-top: var(--space-2);
  font-family: var(--font-ui);
  font-size: var(--step--1);
  color: var(--accent-ink);
}

.post-card__arrow {
  display: inline-block;
  transition: transform 150ms ease;
}

.post-card:hover .post-card__arrow {
  transform: translateX(0.25rem);
}

/* 07. Article header ---------------------------------------------------- */
.singular-content-wrap {
  min-width: 0;
}

.entry-header {
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--rule);
}

.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.entry-meta {
  margin-top: var(--space-2);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.entry-meta a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--rule-strong);
}

.entry-meta a:hover {
  color: var(--accent-ink);
  border-bottom-color: var(--accent);
}

/* 08. Prose ------------------------------------------------------------- */
.entry-content {
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--ink);
}

.entry-content > * {
  margin-block: 0;
  max-width: var(--measure);
}

.entry-content > * + * {
  margin-block-start: 1.15em;
}

.entry-content h2,
.entry-content h3,
.entry-content h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.012em;
  color: var(--ink);
  text-wrap: balance;
}

.entry-content h2 {
  font-size: var(--step-2);
  margin-block-start: 2.2em;
}

.entry-content h3 {
  font-size: var(--step-1);
  margin-block-start: 1.9em;
}

.entry-content h4 {
  font-family: var(--font-ui);
  font-size: var(--step-0);
  letter-spacing: 0.02em;
  margin-block-start: 1.7em;
}

.entry-content h2 + *,
.entry-content h3 + *,
.entry-content h4 + * {
  margin-block-start: 0.6em;
}

.entry-content p {
  text-wrap: pretty;
}

.entry-content strong {
  color: var(--ink);
  font-weight: 700;
}

.entry-content a {
  color: var(--accent-ink);
  text-decoration: underline;
  text-decoration-color: var(--rule-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.entry-content a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

.entry-content ul,
.entry-content ol {
  padding-inline-start: 1.4em;
}

.entry-content li + li {
  margin-block-start: 0.4em;
}

.entry-content li::marker {
  color: var(--ink-muted);
}

.entry-content hr,
.entry-content .wp-block-separator {
  max-width: 7rem;
  margin-inline: auto;
  margin-block: var(--space-5);
  border: 0;
  border-top: 1px solid var(--rule-strong);
}

/* Quotes */
.entry-content blockquote {
  margin-inline: 0;
  padding-inline-start: var(--space-3);
  border-inline-start: 2px solid var(--rule-strong);
  color: var(--ink-soft);
  font-style: italic;
}

.entry-content blockquote cite {
  display: block;
  margin-top: var(--space-2);
  font-family: var(--font-ui);
  font-size: var(--step--1);
  font-style: normal;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.entry-content .wp-block-pullquote {
  margin-block: var(--space-5);
  padding-block: var(--space-3);
  border-block: 1px solid var(--rule);
  font-size: var(--step-1);
  line-height: 1.5;
  text-align: left;
}

.entry-content .wp-block-pullquote blockquote {
  border: 0;
  padding: 0;
  margin: 0;
}

.entry-content .wp-block-pullquote blockquote p {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--ink);
  max-width: 40ch;
}

.entry-content .wp-block-pullquote blockquote p::before {
  content: "\201C";
  margin-right: 0.06em;
  font-size: 1.4em;
  line-height: 0;
  color: var(--accent);
}

/* Code */
.entry-content code,
.entry-content kbd,
.entry-content samp {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

.entry-content :not(pre) > code {
  padding: 0.1em 0.35em;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--paper-tint);
  color: var(--ink);
  white-space: nowrap;
}

.entry-content pre,
.entry-content .wp-block-code {
  max-width: 100%;
  padding: var(--space-2) var(--space-3);
  background: var(--code-bg);
  color: var(--code-ink);
  border: 1px solid var(--code-rule);
  border-radius: var(--radius-lg);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.6;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  tab-size: 2;
}

.entry-content pre code,
.entry-content .wp-block-code code {
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
  font-size: inherit;
  white-space: pre;
}

/* Images */
.entry-content img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
}

.entry-content figure {
  margin: 0;
}

.entry-content .wp-block-image {
  margin-block: var(--space-4);
}

.entry-content .wp-block-image figure,
.entry-content .wp-block-image .aligncenter {
  margin-inline: auto;
  text-align: center;
}

.entry-content .wp-block-image figcaption,
.entry-content figcaption {
  margin-top: var(--space-1);
  font-family: var(--font-ui);
  font-size: var(--step--1);
  line-height: 1.45;
  color: var(--ink-muted);
}

/* Tables */
.entry-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--step--1);
}

.entry-content caption {
  caption-side: bottom;
  padding-top: var(--space-1);
  font-family: var(--font-ui);
  font-size: var(--step--1);
  color: var(--ink-muted);
  text-align: left;
}

.entry-content th,
.entry-content td {
  padding: 0.55em 0.7em;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}

.entry-content thead th {
  border-bottom: 1px solid var(--rule-strong);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.entry-content iframe,
.entry-content .twitter-tweet {
  max-width: 100%;
}

/* 10. Table of contents ------------------------------------------------- */
.entry-content .gutentoc {
  margin-block: var(--space-4) var(--space-5);
  padding: var(--space-3) var(--space-3) calc(var(--space-3) - 0.5rem);
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
}

.gutentoc-toc-wrap::before {
  content: "Contents";
  display: block;
  margin-bottom: var(--space-2);
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.entry-content .gutentoc-toc__list {
  list-style: none;
  margin: 0;
  padding-inline-start: 0;
  font-family: var(--font-ui);
  font-size: 0.95rem;
  line-height: 1.4;
}

.entry-content .gutentoc-toc__list .gutentoc-toc__list {
  margin-block: 0.15rem 0.45rem;
  padding-inline-start: 0.85rem;
  border-inline-start: 1px solid var(--rule);
  font-size: 0.9rem;
}

.entry-content .gutentoc-toc__list li {
  margin: 0;
}

.entry-content .gutentoc-toc__list a {
  display: inline-block;
  padding-block: 0.22rem;
  color: var(--ink-soft);
  text-decoration: none;
}

.entry-content .gutentoc-toc__list a:hover {
  color: var(--accent-ink);
  text-decoration: underline;
  text-decoration-color: currentColor;
}

/* 11. Site footer ------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--paper-tint);
  padding-block: var(--space-3);
  font-family: var(--font-ui);
  font-size: var(--step--1);
  color: var(--ink-muted);
}

.site-footer .wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  align-items: baseline;
  justify-content: space-between;
}

.site-footer a {
  color: var(--accent-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule-strong);
}

.site-footer a:hover {
  border-bottom-color: var(--accent);
}

/* 12. Utilities & focus ------------------------------------------------- */
.screen-reader-text {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.screen-reader-text:focus {
  position: static !important;
  display: block;
  width: auto;
  height: auto;
  margin: 0;
  padding: var(--space-2) var(--gutter);
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--surface);
  color: var(--accent-ink);
  font-family: var(--font-ui);
  font-size: var(--step--1);
  border-bottom: 1px solid var(--rule);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.wp-block-button__link {
  display: inline-block;
  padding: 0.55em 1.1em;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: var(--surface);
  font-family: var(--font-ui);
  font-size: var(--step--1);
  text-decoration: none;
}

.wp-block-button__link:hover {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
  color: var(--surface);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* 13. Responsive -------------------------------------------------------- */
@media (max-width: 34rem) {
  .site-tagline {
    display: none;
  }

  .site-nav {
    gap: var(--space-2);
  }

  .home-hero__title {
    font-size: clamp(2rem, 11vw, 2.6rem);
  }

  .post-card {
    padding-block: var(--space-3);
  }

  .entry-content .gutentoc {
    padding: var(--space-2);
  }
}

/* 14. Print ------------------------------------------------------------- */
@media print {
  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }

  .site-header,
  .site-footer,
  .gutentoc,
  .post-card__more {
    display: none;
  }

  .site-content {
    padding-block: 0;
  }

  .entry-content pre,
  .entry-content .wp-block-code {
    background: #f4f4f4;
    color: #000;
    border-color: #ccc;
    white-space: pre-wrap;
  }

  .entry-content a {
    color: #000;
  }
}