/* Layout: outer 041A0A + pattern; middle strip 09160C; page scrolls as one, no inset scroll */

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

:root {
  --bg-outer: #09160C;
  --bg-strip: #041A0A;
  --text-active: #CCDD46;
  --text-primary: #D9D9D9;
  --text-muted: #596351;
  --tags-color: #7C9A64;
  --divider: #D9D9D987;
  --divider-muted: #596351;
  --font-pixel: 'PxPlus IBM VGA 8x16', monospace;
  --font-mondwest: 'PP Mondwest', sans-serif;
  --font-urbanist: 'Urbanist', sans-serif;
  --font-albert: 'Albert Sans', sans-serif;
  --header-height: 2rem;
}

/* Skip link: visible on focus for keyboard and screen reader users */
.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--bg-strip);
  color: var(--text-primary);
  font-family: var(--font-pixel);
  font-size: 16px;
  text-decoration: none;
  clip-path: inset(50%);
  margin: -1px;
  overflow: hidden;
}
.skip-link:focus {
  clip-path: none;
  margin: 0;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-outer);
  color: var(--text-primary);
}

/* Pixel pattern on outer background only */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 8px 8px;
  pointer-events: none;
  z-index: 0;
}

/* Middle green strip: grows with content, page scrolls as one */
.site-strip {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 950px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 2.5rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-strip);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  flex-shrink: 0;
  background: var(--bg-strip);
  border-bottom: 1px solid var(--divider);
}

.header-inner {
  padding: 4rem 0 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.blog-title {
  margin: 0;
  font-size: 1rem;
  font-weight: normal;
}

.blog-title a {
  display: block;
  text-decoration: none;
  line-height: 0;
}

.blog-title img {
  display: block;
  height: 4rem;
  width: auto;
  object-fit: contain;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav {
  display: flex;
  gap: 0.5rem 1rem;
  flex-wrap: wrap;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-pixel);
  font-size: 16px;
}

.nav-link:hover {
  color: var(--text-active);
}

/* Active nav link (current section) */
.page-home .nav-link[href="index.html"] {
  color: var(--text-active);
}

.article-intro .nav-link[href="intro.html"] {
  color: var(--text-active);
}

.article-list-filters-btn {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  font-size: 16px;
}

.article-list-filters-btn:hover {
  color: var(--text-active);
}

.article-list-active-filters {
  margin: 0 0 0.5rem;
  font-family: var(--font-pixel);
  font-size: 14px;
  color: var(--text-muted);
}

.article-list-clear-filters {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: var(--text-muted);
  cursor: pointer;
  margin-left: 0.25rem;
}

.article-list-clear-filters:hover {
  color: var(--text-active);
}

/* Main: grows with content; padding-top so content doesn’t sit under sticky header */
.main {
  flex: 1 1 auto;
  padding: var(--header-height) 0 1rem;
}

.main-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  position: relative;
}

/* LHS: sticky when page scrolls */
.article-detail-panel {
  position: sticky;
  top: 0;
  gap:10px;
  display:flex;
  flex-direction:column;
  align-self: start;
}

.article-detail-figure {
  margin: 0;
  width: 100%;
  background: var(--text-muted);
  overflow: hidden;
}

.article-detail-figure[hidden] {
  display: none;
}

.article-detail-image-link {
  display: block;
  width: 100%;
  height: 100%;
}

.article-detail-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.article-detail-image[hidden] {
  display: none;
}

.article-detail-categories {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.5em;
  color: var(--tags-color);
  font-family: var(--font-pixel);
  font-size: 16px;
}

.article-detail-categories li {
  margin: 0;
}

.article-detail-title {
  margin: 0 0 0.25em;
  color: var(--text-primary);
  font-family: var(--font-urbanist);
  font-weight: bold;
  font-size: 20px;
}

.article-detail-excerpt {
  margin: 0;
  flex: 1;
  color: var(--text-primary);
  font-family: var(--font-albert);
  font-size: 14px;
}

.article-detail-read-more.link {
  text-decoration: underline;
  color: var(--text-primary);
  font-family: var(--font-pixel);
  font-size: 16px;
}

.article-detail-read-more.link:hover {
  color: var(--text-active);
}

/* RHS: article list */
.article-list-section {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.article-list-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0;
  padding-bottom: 0.5rem;
  color: var(--text-primary);
  font-family: var(--font-pixel);
  font-size: 16px;
}

.article-list-heading {
  margin: 0;
  font-size:16px;
  font-weight:400;
}

.article-list-filters {
  font-size: 16px;
}

.article-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--divider);
}

.article-list-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--divider-muted);
}

.article-list-item-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex: 1;
  min-width: 0;
}

.article-list-item-card {
  display: none;
}

.article-list-item:last-child {
  border-bottom: none;
}

.article-list-item.active {
  border-bottom-color: var(--divider);
}

.article-list-item.active .article-list-item-title,
.article-list-item.active .article-list-item-title a,
.article-list-item.active .article-list-item-date {
  color: var(--text-primary);
}

.article-list-item .article-list-item-title,
.article-list-item .article-list-item-title a,
.article-list-item .article-list-item-date {
  color: var(--text-muted);
}

.article-list-item:hover .article-list-item-title a,
.article-list-item:hover .article-list-item-date {
  color: var(--text-primary);
}

.article-list-item-title {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-family: var(--font-mondwest);
  font-weight: bold;
  font-size: 20px;
}

.article-list-item-title a {
  text-decoration: none;
}

.article-list-item-date {
  flex-shrink: 0;
  font-family: var(--font-pixel);
  font-size: 16px;
}

/* ========== Single breakpoint: under 950px ========== */
@media (max-width: 950px) {
  :root {
    --header-height: 5rem;
  }

  .site-strip {
    max-width: none;
    width: 100%;
    min-height: 100vh;
    height: auto;
    overflow: visible;
    padding: 0 1.25rem;
  }

  .site-header {
    padding-bottom: 0.5rem;
  }

  .header-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.25rem 0 1rem;
    gap: 1rem;
  }

  .blog-title {
    display: block;
  }

  .blog-title a {
    margin: 0 auto;
  }

  .header-right {
    flex-direction: column;
    align-items: center;
  }

  .nav-link[data-trigger="search"],
  .nav-link[data-trigger="options"] {
    display: none;
  }

  .blog-title img {
    height: 3rem;
  }

  .nav {
    justify-content: center;
  }

  .main {
    overflow: visible;
    flex: 1 1 auto;
    padding: 2rem 0 1rem;
  }

  .main-inner {
    display: block;
    grid-template-columns: none;
  }

  .article-detail-panel {
    display: none !important;
  }

  .article-list-section {
    width: 100%;
  }

  .article-list-header {
    flex-wrap: wrap;
    justify-content: space-between;
    padding-bottom: 0.75rem;
  }

  .article-list {
    border-top: 1px solid var(--divider);
  }

  .article-list-item {
    display: block;
    padding: 0;
    border-bottom: 1px solid var(--divider);
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
  }

  .article-list-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .article-list-item-row {
    display: none;
  }

  .article-list-item-card {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .article-list-item-figure {
    margin: 0 0 0.5rem;
    width: 100%;
    max-width: 100%;
    aspect-ratio: 3 / 2;
    background: var(--text-muted);
    overflow: hidden;
  }

  .article-list-item-figure a {
    display: block;
    width: 100%;
    height: 100%;
    line-height: 0;
  }

  .article-list-item-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .article-list-item-categories {
    list-style: none;
    margin: 0 0 0.35rem;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0 0.5em;
    color: var(--tags-color);
    font-family: var(--font-pixel);
    font-size: 16px;
  }

  .article-list-item-categories li {
    margin: 0;
  }

  .article-list-item-card-title {
    margin: 0 0 0.35em;
    font-family: var(--font-urbanist);
    font-weight: bold;
    font-size: 1.25rem;
  }

  .article-list-item-card-title a {
    color: var(--text-primary);
    text-decoration: none;
  }

  .article-list-item-card-title a:hover {
    color: var(--text-active);
  }

  .article-list-item-excerpt {
    margin: 0 0 0.5rem;
    font-family: var(--font-albert);
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1.5;
  }

  .article-list-item-read-more {
    font-family: var(--font-pixel);
    font-size: 16px;
    text-decoration: underline;
    color: var(--text-primary);
  }

  .article-list-item-read-more:hover {
    color: var(--text-active);
  }

  .footer-inner {
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: center;
    text-align: center;
    gap: 0.75rem;
  }

  .footer-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0 1rem;
  }

  .footer-credit {
    margin: 0.5rem 0 0;
  }

  /* Search overlay: tighter on mobile */
  .overlay {
    padding: 1rem;
    align-items: flex-start;
    padding-top: 2rem;
  }

  .search-overlay .search-overlay-content,
  .settings-overlay .settings-content {
    max-width: 100%;
    padding: 1.25rem;
  }

  .search-overlay-header {
    margin-bottom: 1rem;
  }

  .search-input {
    font-size: 16px;
    padding: 0.6rem 0.75rem;
  }

  .search-overlay-label {
    margin-bottom: 0.35rem;
  }

  .search-categories-list {
    gap: 0.35rem;
  }

  .search-category-btn {
    padding: 0.3rem 0.6rem;
    font-size: 13px;
  }

  .article-list-active-filters {
    font-size: 13px;
    margin-bottom: 0.35rem;
  }

  .article-list-filters-btn {
    font-size: 14px;
  }
}

/* Footer: only strip width, 1px divider above */
.site-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--divider);
}

.footer-inner {
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-pixel);
  font-size: 16px;
}

.footer-row {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0 1rem;
}

.footer-row .footer-link {
  white-space: nowrap;
}

.footer-link {
  text-decoration: none;
  color: var(--text-muted);
}

.footer-link:hover {
  color: var(--text-active);
}

.footer-credit {
  margin: 0 1rem;
}

.excerpt { }
.link { }
.category { }

/* ========== Search overlay (Spotlight-style) ========== */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.overlay[hidden] {
  display: none;
}

.overlay-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  cursor: pointer;
}

.search-overlay .search-overlay-content {
  position: relative;
  width: 100%;
  max-width: 600px;
  background: var(--bg-strip);
  border: 1px solid var(--divider);
  padding: 2rem;
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.5);
}

.search-overlay-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.search-input {
  flex: 1;
  padding: 0.75rem 1rem;
  font-family: var(--font-pixel);
  font-size: 18px;
  color: var(--text-primary);
  background: var(--bg-outer);
  border: 1px solid var(--divider);
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  border-color: var(--text-active);
}

.search-overlay-close {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  font-size: 1.5rem;
  line-height: 1;
  background: transparent;
  border: 1px solid var(--divider);
  color: var(--text-primary);
  cursor: pointer;
  font-family: var(--font-pixel);
}

.search-overlay-close:hover {
  color: var(--text-active);
  border-color: var(--text-active);
}

.search-overlay-label {
  margin: 0 0 0.5rem;
  font-family: var(--font-pixel);
  font-size: 14px;
  color: var(--text-muted);
}

.search-categories-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.search-category-btn {
  padding: 0.35rem 0.75rem;
  font-family: var(--font-pixel);
  font-size: 14px;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--divider-muted);
  cursor: pointer;
}

.search-category-btn:hover,
.search-category-btn.active {
  color: var(--text-active);
  border-color: var(--text-active);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========== Settings overlay (Spotlight-style) ========== */
.settings-overlay .settings-content {
  position: relative;
  width: 100%;
  max-width: 600px;
  background: var(--bg-strip);
  border: 1px solid var(--divider);
  padding: 2rem;
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.5);
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.settings-title {
  margin: 0;
  font-family: var(--font-pixel);
  font-size: 18px;
  font-weight: normal;
}

.settings-body {
  padding: 0;
}

.settings-body .search-overlay-label {
  margin-bottom: 0.5rem;
}

.settings-divider {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  margin: 1rem 0;
}

.settings-inline-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.settings-inline-btn {
  padding: 0.35rem 0.75rem;
  font-family: var(--font-pixel);
  font-size: 14px;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--divider-muted);
  cursor: pointer;
}

.settings-inline-btn:hover,
.settings-inline-btn.active {
  color: var(--text-active);
  border-color: var(--text-active);
}

.settings-plain-desc {
  margin: 0 0 0.5rem;
  font-family: var(--font-albert);
  font-size: 14px;
  color: var(--text-muted);
}

.settings-plain-link {
  font-family: var(--font-pixel);
  font-size: 14px;
  color: var(--text-primary);
  text-decoration: underline;
}

.settings-plain-link:hover {
  color: var(--text-active);
}

/* ========== Font size ========== */
.font-size-large {
  font-size: 112.5%;
}

.font-size-larger {
  font-size: 125%;
}

/* ========== Black & White theme ========== */
.theme-bw {
  --bg-outer: #0a0a0a;
  --bg-strip: #111111;
  --text-active: #ffffff;
  --text-primary: #e0e0e0;
  --text-muted: #888888;
  --tags-color: #aaaaaa;
  --divider: #e0e0e080;
  --divider-muted: #666666;
}

.theme-bw .prose blockquote {
  border-left-color: var(--text-active);
  background: rgba(255, 255, 255, 0.06);
}