:root {
  --paper: #FFFFFF;
  --paper-soft: #F7F7F5;
  --ink: #171717;
  --ink-soft: #78776F;
  --line: #E8E6E0;
  --pixel: #3B6FD6;
}

* { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

header.site-header {
  padding: 48px 0 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.wordmark {
  font-family: 'Press Start 2P', monospace;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.5px;
  display: inline-block;
}

.site-tagline {
  margin: 14px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

/* --- dvousloupcový layout: tag cloud vlevo, obsah vpravo --- */
.layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  align-items: start;
}

@media (max-width: 720px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { order: 1; }
  .main-content { order: 2; }
}

.sidebar {
  position: sticky;
  top: 32px;
}

.tag-cloud-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin: 0 0 14px;
  font-weight: 600;
}

.search-form {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 3px;
  margin-bottom: 28px;
  overflow: hidden;
}

.search-form input {
  flex: 1;
  border: none;
  padding: 8px 10px;
  font-family: inherit;
  font-size: 13px;
  color: var(--ink);
  min-width: 0;
  outline: none;
  background: transparent;
}

.search-form input::placeholder {
  color: var(--ink-soft);
}

.search-form button {
  border: none;
  background: transparent;
  color: var(--ink-soft);
  padding: 0 10px;
  height: 34px;
  cursor: pointer;
  display: flex;
  align-items: center;
}

.search-form button:hover {
  color: var(--pixel);
}

.tag-cloud ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tag-cloud a {
  color: var(--ink);
  text-decoration: none;
  line-height: 1.3;
  transition: color .15s ease;
}

.tag-cloud a:hover,
.tag-cloud a.active {
  color: var(--pixel);
}

.tag-cloud .tag-count {
  color: var(--ink-soft);
  font-size: 11px;
}

h1.page-title {
  font-size: 28px;
  font-weight: 500;
  margin: 0 0 28px;
  letter-spacing: -0.01em;
}

nav.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 36px;
}

nav.tag-filter a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px 6px 8px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 13px;
  transition: border-color .15s ease, color .15s ease;
}

nav.tag-filter a:hover {
  border-color: var(--pixel);
  color: var(--ink);
}

nav.tag-filter a.active {
  border-color: var(--pixel);
  color: var(--ink);
}

nav.tag-filter a.active svg .pxl-accent { fill: var(--pixel); }

nav.tag-filter svg {
  display: block;
  shape-rendering: crispEdges;
}

.filter-note {
  color: var(--ink-soft);
  font-size: 13px;
  margin: -24px 0 28px;
}

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

ul.articles li {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
}

ul.articles li a.title {
  color: var(--ink);
  text-decoration: none;
  font-size: 18px;
  font-weight: 500;
}

ul.articles li a.title:hover {
  color: var(--pixel);
}

.article-excerpt {
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.6;
}

.article-excerpt p { margin: 0; }

.article-meta {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 13px;
}

.article-meta svg {
  shape-rendering: crispEdges;
  flex-shrink: 0;
}

.empty-state {
  color: var(--ink-soft);
  font-size: 14px;
  padding: 20px 0;
}

article.single h1 {
  font-size: 30px;
  font-weight: 500;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

article.single .article-meta {
  margin-bottom: 32px;
}

article.single .body-text {
  font-size: 16px;
  line-height: 1.75;
}

article.single .body-text p { margin: 0 0 20px; }

/* --- standardní velikost obrázků v článku + rozklik --- */
.body-text img {
  display: block;
  max-width: 100%;
  max-height: 420px;
  width: auto;
  height: auto;
  border-radius: 3px;
  border: 1px solid var(--line);
  margin: 0 0 20px;
  cursor: zoom-in;
}

/* --- lightbox overlay --- */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(23, 23, 23, 0.9);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 40px;
  cursor: zoom-out;
}

.lightbox-overlay.is-open { display: flex; }

.lightbox-overlay img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 3px;
}

.back-link {
  display: inline-block;
  margin-top: 40px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
}

.back-link:hover { color: var(--pixel); }

footer.site-footer {
  margin-top: 64px;
  padding: 28px 0 60px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 12px;
}