/*
 * Notepad Theme — Main Stylesheet
 * A personal notebook aesthetic: cream paper, ink typography, ruled lines.
 */

/* ─────────────────────────────────────────────
   CSS Custom Properties
──────────────────────────────────────────────── */

:root {
  --color-paper:       #FEFDF8;
  --color-paper-dark:  #F5F3EC;
  --color-ink:         #1D1C18;
  --color-ink-faded:   #7A6E5F;
  --color-red-ink:     #C8315A;
  --color-blue-ink:    #2B56A0;
  --color-ruled:       rgba(0, 0, 0, 0.065);
  --color-border:      #E4E0D4;

  --font-mono:   "Cascadia Mono", "Courier New", monospace;
  --font-body:   "Roboto", "Helvetica Neue", Arial, sans-serif;

  --weight-light:   300;
  --weight-regular: 400;

  --line-height-tight:   1.2;
  --line-height-snug:    1.45;
  --line-height-normal:  1.75;

  /* Ruled line grid — must match body line-height exactly.
     With font-size 1rem (16px) * 1.75 = 28px per line. */
  --lh: 1.75rem;

  --page-left: clamp(1.25rem, 5vw, 4rem);
  --page-right: 1.5rem;
  --content-max: 700px;

  --transition-fast: 180ms ease;
  --transition-nav: 260ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─────────────────────────────────────────────
   Reset & Base
──────────────────────────────────────────────── */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-weight: var(--weight-light);
  font-size: 1rem;
  line-height: var(--lh);
}

/* ─────────────────────────────────────────────
   Layout — Left-aligned, max 700px
──────────────────────────────────────────────── */

/* Constrained layout — scoped to .site-main only so the header is never affected */
@media (min-width: 600px) {
  .wp-site-blocks {
    padding-left: 0;
    padding-right: 0;
  }

  .site-main .is-layout-constrained > :where(:not(.alignleft):not(.alignright):not(.alignfull)),
  .site-main.is-layout-constrained > :where(:not(.alignleft):not(.alignright):not(.alignfull)) {
    max-width: var(--content-max) !important;
    margin-left: var(--page-left) !important;
    margin-right: var(--page-right) !important;
  }

  .site-main .wp-block-post-content.is-layout-constrained > :where(:not(.alignleft):not(.alignright):not(.alignfull)) {
    max-width: var(--content-max) !important;
    margin-left: var(--page-left) !important;
    margin-right: var(--page-right) !important;
  }
}

@media (max-width: 599px) {
  .site-main .is-layout-constrained > :where(:not(.alignleft):not(.alignright):not(.alignfull)),
  .site-main.is-layout-constrained > :where(:not(.alignleft):not(.alignright):not(.alignfull)) {
    max-width: 100% !important;
    margin-left: 1.25rem !important;
    margin-right: 1.25rem !important;
  }
}

/* Explicitly reset any FSE layout interference inside the header */
.site-header,
.site-header .wp-block-group,
.site-header .wp-block-post-title,
.site-header .wp-block-site-title,
.site-header .wp-block-query-title {
  max-width: none !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
  width: 100%;
}

/* Site-wide blocks container */
.wp-site-blocks {
  max-width: 100%;
  overflow-x: hidden;
}

/* ─────────────────────────────────────────────
   Header
──────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-paper);
  border-bottom: 1px solid var(--color-border);
  /* Use flex for reliable vertical centering */
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 4rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  padding-left: var(--page-left);
  padding-right: var(--page-right);
}

@media (max-width: 599px) {
  .site-header {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

/* Strip any margin the shortcode block wrapper adds */
.site-header .wp-block-shortcode {
  margin: 0 !important;
  padding: 0 !important;
}

/* Site Title */
.wp-block-site-title {
  margin: 0;
  padding: 0;
  line-height: 1;
}

/* The shortcode outputs a <p> — strip its default margin */
.site-header .wp-block-site-title p,
.site-header p.wp-block-site-title {
  margin: 0;
  padding: 0;
}

.wp-block-site-title a {
  font-family: var(--font-mono);
  font-weight: var(--weight-regular);
  font-size: 1.375rem;
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  transition: color var(--transition-fast);
  position: relative;
  user-select: none;
}

.wp-block-site-title a::after {
  content: '▾';
  font-size: 0.7em;
  color: var(--color-ink-faded);
  transition: transform var(--transition-nav), color var(--transition-fast);
  display: inline-block;
  margin-left: 0.15rem;
}

.site-header.nav-open .wp-block-site-title a::after {
  transform: rotate(-180deg);
  color: var(--color-red-ink);
}

.wp-block-site-title a:hover {
  color: var(--color-red-ink);
}

/* On inner pages the site-title text is swapped via JS — no nav-trigger block needed */

/* ─────────────────────────────────────────────
   Navigation — Dropdown from site title
──────────────────────────────────────────────── */

.site-navigation {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-nav), padding var(--transition-nav);
}

.site-header.nav-open .site-navigation {
  max-height: 600px;
  padding-top: 0.75rem;
  padding-bottom: 0.25rem;
}

/* Navigation block styles */
.site-navigation .wp-block-navigation {
  width: 100%;
}

.site-navigation .wp-block-navigation__container {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-navigation .wp-block-navigation-item {
  border-bottom: 1px solid var(--color-border);
}

.site-navigation .wp-block-navigation-item:last-child {
  border-bottom: none;
}

.site-navigation .wp-block-navigation-item__content {
  font-family: var(--font-mono);
  font-weight: var(--weight-regular);
  font-size: 0.9375rem;
  color: var(--color-ink-faded);
  text-decoration: none;
  display: block;
  padding: 0.55rem 0;
  letter-spacing: -0.01em;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.site-navigation .wp-block-navigation-item__content:hover,
.site-navigation .wp-block-navigation-item.current-menu-item .wp-block-navigation-item__content {
  color: var(--color-red-ink);
  padding-left: 0.6rem;
}

.site-navigation .wp-block-navigation-item.current-menu-item .wp-block-navigation-item__content::before {
  content: '→ ';
  font-size: 0.85em;
}

/* Hide the default Navigation block overlay / hamburger (we use our own toggle) */
.site-navigation .wp-block-navigation__responsive-container-open,
.site-navigation .wp-block-navigation__responsive-container-close {
  display: none !important;
}

/* If overlayMenu is "always", reveal the inner container always */
.site-navigation .wp-block-navigation__responsive-container {
  position: static !important;
  display: block !important;
  background: transparent !important;
  padding: 0 !important;
  width: auto !important;
  height: auto !important;
  min-height: 0 !important;
  overflow: visible !important;
}

.site-navigation .wp-block-navigation__responsive-container-content {
  padding: 0 !important;
}

/* ─────────────────────────────────────────────
   Main Content Area
──────────────────────────────────────────────── */

.site-main {
  /* padding-top = 2 × --lh so the very first line of text lands on a ruled line.
     Any integer multiple works; 2 gives comfortable breathing room below the header. */
  padding-top: calc(2 * var(--lh));
  padding-bottom: 4rem;
  min-height: 60vh;
  /* Ruled lines live here, not on body, so the grid starts exactly at the
     top of the content area and is always in phase with paragraph text. */
  /* Ruled lines: tile width = content column, x-offset = left text margin.
     repeat-y means the tile repeats vertically but NOT horizontally, so the
     line spans exactly the content width and starts flush with the text. */
  background-image: linear-gradient(
    transparent calc(var(--lh) - 1px),
    var(--color-ruled) calc(var(--lh) - 1px)
  );
  background-size: var(--content-max) var(--lh);
  background-position: var(--page-left) 0;
  background-repeat: repeat-y;
}

@media (max-width: 599px) {
  .site-main {
    background-size: calc(100% - 2.5rem) var(--lh);
    background-position: 1.25rem 0;
  }
}

/* ─────────────────────────────────────────────
   Post List (Index / Archive)
──────────────────────────────────────────────── */

.post-entry {
  padding-bottom: 2.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.post-entry:last-child {
  border-bottom: none;
}

/* Post title on index */
.post-entry .wp-block-post-title {
  margin-top: 0;
  margin-bottom: 0.35rem;
}

.post-entry .wp-block-post-title a {
  font-family: var(--font-mono);
  font-weight: var(--weight-regular);
  font-size: clamp(1.1rem, 2.5vw, 1.375rem);
  color: var(--color-ink);
  text-decoration: none;
  line-height: var(--line-height-snug);
  transition: color var(--transition-fast);
}

.post-entry .wp-block-post-title a:hover {
  color: var(--color-red-ink);
}

/* Post date */
.wp-block-post-date,
.post-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: var(--weight-regular);
  color: var(--color-red-ink);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
  display: block;
}

.wp-block-post-date time {
  font-family: var(--font-mono);
}

/* Post excerpt */
.wp-block-post-excerpt {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.wp-block-post-excerpt__excerpt {
  color: var(--color-ink);
  font-weight: var(--weight-light);
  line-height: var(--line-height-normal);
  margin: 0 0 0.5rem;
}

.wp-block-post-excerpt__more-link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: var(--weight-regular);
  color: var(--color-blue-ink);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
}

.wp-block-post-excerpt__more-link:hover {
  color: var(--color-red-ink);
}

/* ─────────────────────────────────────────────
   Single Post / Page
──────────────────────────────────────────────── */

/* Post header area */
.post-header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

/* Post/page title */
.wp-block-post-title {
  font-family: var(--font-mono);
  font-weight: var(--weight-regular);
  font-size: clamp(1.4rem, 4vw, 2.125rem);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--color-ink);
}

/* Post content typography */
.wp-block-post-content {
  font-weight: var(--weight-light);
}

.wp-block-post-content p {
  margin-top: 0;
  margin-bottom: 1.25rem;
  line-height: var(--line-height-normal);
}

.wp-block-post-content h2 {
  margin-top: 2.25rem;
  margin-bottom: 0.6rem;
  font-family: var(--font-mono);
  font-weight: var(--weight-regular);
  letter-spacing: -0.015em;
}

.wp-block-post-content h3 {
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-weight: var(--weight-regular);
}

/* Inline code */
.wp-block-post-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-paper-dark);
  padding: 0.15em 0.4em;
  border-radius: 2px;
  color: var(--color-red-ink);
}

/* Blockquote — looks like a margin annotation */
.wp-block-quote {
  margin: 1.75rem 0;
  padding: 0 0 0 1.25rem;
  border-left: 3px solid var(--color-red-ink);
}

.wp-block-quote p {
  font-style: italic;
  color: var(--color-ink-faded);
  font-weight: var(--weight-light);
}

.wp-block-quote cite {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-style: normal;
  color: var(--color-ink-faded);
}

/* Lists */
.wp-block-post-content ul,
.wp-block-post-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.wp-block-post-content li {
  margin-bottom: 0.4rem;
  line-height: var(--line-height-normal);
}

/* Images */
.wp-block-image {
  margin: 2rem 0;
}

.wp-block-image img {
  max-width: 100%;
  height: auto;
  display: block;
  /* Slight desaturation for that aged-photo notebook feel */
  filter: saturate(0.88);
  transition: filter var(--transition-fast);
}

.wp-block-image img:hover {
  filter: saturate(1);
}

.wp-block-image figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-ink-faded);
  margin-top: 0.5rem;
  font-style: italic;
}

/* ─────────────────────────────────────────────
   Separator
──────────────────────────────────────────────── */

.wp-block-separator {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2rem 0;
}

.wp-block-separator.is-style-wide {
  width: 100%;
}

.wp-block-separator.is-style-dots {
  border: none;
  text-align: left;
  font-family: var(--font-mono);
  color: var(--color-ink-faded);
  font-size: 1rem;
  letter-spacing: 0.5em;
}

.wp-block-separator.is-style-dots::before {
  content: '* * *';
}

/* ─────────────────────────────────────────────
   Pagination
──────────────────────────────────────────────── */

.wp-block-query-pagination {
  display: flex;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.wp-block-query-pagination-previous-arrow,
.wp-block-query-pagination-next-arrow {
  display: inline;
}

.wp-block-query-pagination a {
  color: var(--color-ink-faded);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-weight: var(--weight-regular);
}

.wp-block-query-pagination a:hover {
  color: var(--color-red-ink);
}

/* ─────────────────────────────────────────────
   Footer
──────────────────────────────────────────────── */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem var(--page-right) 2.5rem var(--page-left);
}

@media (max-width: 599px) {
  .site-footer {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

.site-footer .wp-block-site-title a,
.site-footer-credit {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-ink-faded);
  text-decoration: none;
}

.site-footer-credit {
  display: block;
  margin-top: 0.35rem;
}

/* ─────────────────────────────────────────────
   404 Page
──────────────────────────────────────────────── */

.error-404 .page-title {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 5vw, 3rem);
  color: var(--color-ink-faded);
  margin-bottom: 1rem;
}

/* ─────────────────────────────────────────────
   Accessibility
──────────────────────────────────────────────── */

:focus-visible {
  outline: 2px solid var(--color-red-ink);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-ink);
  color: var(--color-paper);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 0.5rem 1rem;
  z-index: 9999;
  text-decoration: none;
  transition: top 0s;
}

.skip-link:focus {
  top: 0.75rem;
}

/* ─────────────────────────────────────────────
   Selection
──────────────────────────────────────────────── */

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

/* ─────────────────────────────────────────────
   Scrollbar (webkit)
──────────────────────────────────────────────── */

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-paper);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-ink-faded);
}

/* ─────────────────────────────────────────────
   Print
──────────────────────────────────────────────── */

@media print {
  body {
    background-image: none;
    background: white;
  }

  .site-header,
  .site-footer,
  .site-navigation {
    display: none;
  }
}