/* ==========================================================================
   Muzzug Web — raw / brutalist, dark sage palette (primalnordic.com)
   No cards, no radius, no shadows. Monospace, hard rules, hard hovers.
   ========================================================================== */

:root {
  --color-bg: #4a5643;
  --color-bg-soft: #414c3b;
  --color-surface: #3a4435;
  --color-text: #f4f2e8;
  --color-text-muted: rgba(244, 242, 232, 0.62);
  --color-accent: #d8e6c4;
  --color-accent-fill: #707d68;
  --color-border: rgba(244, 242, 232, 0.35);

  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
  --content-width: 46rem;
  --wide-width: 64rem;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-y: scroll;
  scrollbar-gutter: stable;
}

body {
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-text);
}

h2 {
  margin: 3rem 0 1.1rem;
  font-size: 1.4rem;
  text-transform: uppercase;
}

h3 { margin: 2.25rem 0 0.85rem; font-size: 1.1rem; }

p { margin: 0 0 1.25rem; }

ul, ol { margin: 0 0 1.25rem 1.25rem; }

/* `height: auto` je tu kvůli width/height atributům na <img> - ty drží místo
   proti poskakování layoutu (CLS), ale bez tohohle by při zúžení deformovaly
   poměr stran. */
img, video { max-width: 100%; height: auto; }

/* ---- Skip to content ---- */

.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 100;
  transform: translateY(-100%);
  padding: 0.75rem 1.25rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-mono);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: transform 0.15s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---- Header ---- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-text);
}

.header-inner {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem 2rem;
}

.header-nav-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.75rem;
}

nav.main-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
}

nav.main-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.1s linear, border-color 0.1s linear;
}

nav.main-nav a:hover {
  color: var(--color-text);
  border-bottom-color: var(--color-text-muted);
}

nav.main-nav a.active {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transform: translateY(-2px);
}

/* ---- Mobile hamburger menu (CSS-only, checkbox hack) ---- */

.nav-toggle-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  z-index: 101;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.lang-switcher a {
  display: inline-flex;
  align-items: center;
  line-height: 1;
  font-size: 1.15rem;
  text-decoration: none;
  transition: transform 0.1s linear;
}

.lang-switcher a:hover {
  transform: scale(1.15);
}

.rss-link {
  display: inline-flex;
  align-items: center;
  margin-left: 0.4rem;
}

.rss-link:hover {
  transform: scale(1.15);
}

.icon-rss {
  display: block;
}

.search-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-text-muted);
}

.search-link:hover {
  color: var(--color-accent);
}

.search-kbd {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1;
  color: var(--color-text-muted);
}

@media (max-width: 640px) {
  .search-kbd {
    display: none;
  }
}

/* ---- Main content ---- */

main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

/* ---- Code blocks (Zola/Giallo syntax highlighting) ---- */

pre {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

:not(pre) > code {
  background: var(--color-bg-soft);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  font-size: 0.85em;
}

/* Required by Zola's syntax highlighter (Giallo) for correct layout */
.giallo-l {
  display: inline-block;
  min-height: 1lh;
  width: 100%;
}

/* Čísla řádků v kódu. Zatím je nepoužívá žádný blok (zapínají se přes
   ```jazyk,linenos), ale až budou potřeba, ať mají styl připravený. */
.giallo-ln {
  display: inline-block;
  user-select: none;
  margin-right: 0.4em;
  padding: 0.4em;
  min-width: 3ch;
  text-align: right;
  opacity: 0.8;
}

article h1 {
  font-size: clamp(1.65rem, 4.5vw, 2.25rem);
  margin-bottom: 2rem;
  text-transform: uppercase;
}

article {
  line-height: 1.75;
}

.term-description {
  color: var(--color-text-muted);
  margin: 0.5rem 0 1.5rem;
}

.date-changed {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-weight: 300;
}

.search-input {
  display: block;
  width: 100%;
  margin: 1rem 0;
  padding: 0.6rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 0;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.search-status {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

article blockquote:has(img) {
  margin: 2rem 0;
  padding: 0;
  border: none;
  text-align: center;
}

article blockquote:has(img) img {
  display: block;
  margin: 0 auto 0.75rem;
}

article blockquote:has(img) p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.back-link:hover {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: -0.75rem 0 2rem;
}

.tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  padding: 0.15rem 0.5rem;
}

.tag::before { content: "#"; }

.centered {
  text-align: center;
}

.translation-available {
  margin-top: 3rem;
}

/* ---- Link graph (digital garden backlinks) ---- */

.link-graph {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 1.25rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border);
}

.link-graph-group h2 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.link-graph-group p {
  margin: 0;
}

.link-graph-group a {
  color: var(--color-text);
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
}

.link-graph-group a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* ---- Post navigation (previous/next) ---- */

.post-navigation {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  margin: 3rem 0 0;
  border-top: 3px solid var(--color-text);
  border-bottom: 3px solid var(--color-text);
}

.post-navigation > a {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem;
  border-left: 2px solid var(--color-text);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.8rem;
  transition: background-color 0.1s linear, color 0.1s linear;
}

.post-navigation > a:first-child {
  border-left: none;
}

.next-post {
  text-align: right;
  align-items: flex-end;
}

.post-navigation-title {
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.post-navigation > a:hover {
  background: var(--color-text);
  color: var(--color-bg);
}

.post-navigation > a:hover .post-navigation-title {
  color: var(--color-bg);
}

/* ---- Stats page ---- */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  margin: 2.5rem 0;
  border-top: 3px solid var(--color-text);
  border-bottom: 3px solid var(--color-text);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem 1rem;
  border-left: 2px solid var(--color-text);
}

.stat:first-child {
  border-left: none;
}

.stat-number {
  font-size: clamp(1.6rem, 4vw, 2rem);
  font-weight: 700;
}

.stat-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.9rem;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  margin: 0 0 2.5rem;
  border-top: 3px solid var(--color-text);
  border-bottom: 3px solid var(--color-text);
}

.category-cell {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-left: 2px solid var(--color-text);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.9rem;
  transition: background-color 0.1s linear, color 0.1s linear;
}

.category-cell:first-child {
  border-left: none;
}

.category-count {
  color: var(--color-text-muted);
  font-weight: 700;
}

.category-cell:hover {
  background: var(--color-text);
  color: var(--color-bg);
}

.category-cell:hover .category-count {
  color: var(--color-bg);
}

.stats-fun {
  margin: 0 0 1.25rem 1.25rem;
}

.stats-fun li {
  margin-bottom: 0.6rem;
  color: var(--color-text-muted);
}

.stats-fun strong {
  color: var(--color-text);
}

/* ---- Homepage ---- */

.homepage-intro {
  text-align: center;
}

.homepage-intro p {
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}

.author-avatar-homepage {
  display: block;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1.5rem;
}

.recent-posts {
  margin-top: 3rem;
}

/* ---- Tag/taxonomy list ---- */

.tag-list {
  margin-top: 2rem;
}

.tag-list-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  text-decoration: none;
}

.tag-list-item:first-child {
  border-top: 1px solid var(--color-border);
}

.tag-list-name {
  font-weight: 700;
}

.tag-list-count {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.tag-list-item:hover .tag-list-name {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- Blog listing ---- */

.posts {
  margin-top: 2.5rem;
  border-top: 2px solid var(--color-text);
}

.post {
  padding: 2rem 0;
  border-bottom: 2px solid var(--color-text);
}

.post .date {
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.6rem;
}

.post .date::before { content: "["; }
.post .date::after { content: "]"; }

.post .date a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.post .date a:hover {
  color: var(--color-text);
}

.post h2 {
  margin: 0 0 0.6rem;
  font-size: 1.3rem;
}

.post h2 a {
  color: var(--color-text);
  text-decoration: none;
}

.post h2 a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.post p {
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.post > a {
  display: inline-block;
  color: var(--color-accent);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.post > a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- Footer ---- */

footer {
  border-top: 2px solid var(--color-text);
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.footer-links {
  margin-top: 0.75rem;
}

.footer-links a {
  color: var(--color-text-muted);
  font-weight: 700;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- Responsive ---- */

@media (max-width: 640px) {
  .header-inner {
    flex-wrap: nowrap;
    align-items: center;
  }

  .menu-toggle {
    display: flex;
  }

  .header-nav-group {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }

  nav.main-nav {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }

  nav.main-nav a {
    font-size: 1.3rem;
  }

  .lang-switcher {
    gap: 1rem;
  }

  .lang-switcher a {
    font-size: 1.5rem;
  }

  #nav-toggle:checked ~ .header-nav-group {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  #nav-toggle:checked ~ .menu-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  #nav-toggle:checked ~ .menu-toggle span:nth-child(2) {
    opacity: 0;
  }

  #nav-toggle:checked ~ .menu-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  html:has(#nav-toggle:checked) {
    overflow: hidden;
  }

  main {
    padding: 3rem 1.25rem 4rem;
  }
}

/* ---- Language picker (xx default landing page) ---- */

.lang-picker {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3.5rem;
  padding: 2rem;
  text-align: center;
}

.lang-picker__flags {
  display: flex;
  gap: 3.5rem;
}

.lang-picker__flag {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  transition: transform 0.1s linear;
}

.lang-picker__flag:hover {
  transform: scale(1.08);
}

.lang-picker__flag .flag-emoji {
  font-size: 7rem;
  line-height: 1;
}

.lang-picker__flag .flag-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

@media (max-width: 480px) {
  .lang-picker__flags {
    flex-direction: column;
    gap: 2.5rem;
  }

  .lang-picker__flag .flag-emoji {
    font-size: 5.5rem;
  }
}

/* ==========================================================================
   Lightbox
   ========================================================================== */

article img.lightbox-trigger {
  cursor: zoom-in;
}

body.lightbox-open {
  overflow: hidden;
}

.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.85);
}

.lightbox-overlay[hidden] {
  display: none;
}

.lightbox-image {
  max-width: 100%;
  max-height: 85vh;
  cursor: zoom-out;
}

.lightbox-caption {
  color: var(--color-text);
  font-size: 0.9rem;
  text-align: center;
  max-width: var(--content-width);
}

.lightbox-caption[hidden] {
  display: none;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 2.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

.lightbox-close:hover {
  color: var(--color-accent);
}