/* ──────────────────────────────────────────────────────────────────────
 * jakubzemlicka.cz — article.css
 * Shared styling pro per-article blog stránky (/blog/<slug>/).
 * Matches design tokens z root index.html. Drží se dark theme + cyan accent.
 * ────────────────────────────────────────────────────────────────────── */

:root {
  --bg:          #080a0f;
  --bg2:         #0d1018;
  --bg3:         #131720;
  --cyan:        #22d3ee;
  --cyan-dim:    #0e7490;
  --cyan-glow:   rgba(34,211,238,0.12);
  --amber:       #ffa94d;
  --amber-hover: #ffc078;
  --green:       #4ade80;
  --text:        #f1f5f9;
  --text-muted:  #8899aa;
  --text-dim:    #64809f;
  --border:      rgba(255,255,255,0.06);
  --border2:     rgba(255,255,255,0.10);
  --mono:        'JetBrains Mono', monospace;
  --body:        'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--cyan); text-decoration: none; transition: color 0.2s; }
a:hover { color: #67e8f9; }

/* ── NAV ── */
body > nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 56px;
  background: rgba(8,10,15,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--mono);
  font-size: 15px; font-weight: 500;
  letter-spacing: 2px;
  color: var(--text); text-decoration: none;
}

.nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }

.nav-links a {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--text-muted); text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--text); }

.nav-lang {
  border: 1px solid var(--border2);
  padding: 6px 12px !important;
  border-radius: 2px;
  color: var(--text-dim) !important;
}
.nav-lang:hover { border-color: var(--cyan); color: var(--cyan) !important; }

.nav-cta {
  background: var(--amber) !important;
  color: var(--bg) !important;
  padding: 7px 18px !important;
  border-radius: 2px; font-weight: 500 !important;
  transition: background 0.2s !important;
}

.nav-cta:hover { background: var(--amber-hover) !important; }

.hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px;
  background: none; border: none;
}

.hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: all 0.25s;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed; top: 57px; left: 0; right: 0;
  background: rgba(8,10,15,0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 24px 24px 32px;
  flex-direction: column; gap: 0;
  z-index: 99;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  font-family: var(--mono); font-size: 13px;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--text-muted); text-decoration: none;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.mobile-menu a:hover { color: var(--cyan); }

.mobile-menu .nav-cta {
  margin-top: 20px;
  background: var(--amber) !important;
  color: var(--bg) !important;
  padding: 14px 24px !important;
  border-radius: 2px; text-align: center;
  border-bottom: none !important;
}

/* ── ARTICLE container ── */
.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 140px 24px 80px;
}

/* ── Breadcrumb ── */
.breadcrumb {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 32px;
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb .sep { color: var(--text-dim); }
.breadcrumb .current { color: var(--text); }

/* ── Article header ── */
.article-header { margin-bottom: 56px; }

.article-meta {
  display: flex; gap: 24px; flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11px;
  margin-bottom: 24px;
}

.article-meta .article-date { color: var(--text-dim); }
.article-meta .article-cat  { color: var(--cyan); letter-spacing: 2px; text-transform: uppercase; font-size: 10px; }
.article-meta .article-read { color: var(--text-dim); }

.article-title {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin-bottom: 24px;
  color: var(--text);
}

.article-perex {
  font-size: 19px;
  line-height: 1.65;
  color: var(--text-muted);
  font-weight: 400;
  border-left: 3px solid var(--cyan);
  padding: 4px 0 4px 20px;
  background: linear-gradient(90deg, var(--cyan-glow), transparent 60%);
}

/* ── Article body — prose ── */
.article-body { font-size: 16px; color: var(--text); line-height: 1.8; }

.article-body > * + * { margin-top: 1.1em; }

.article-body h2 {
  font-size: clamp(22px, 2.8vw, 28px);
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text);
  margin-top: 2.4em;
  line-height: 1.25;
  padding-top: 0.4em;
}

.article-body h3 {
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 600;
  color: var(--text);
  margin-top: 1.8em;
  line-height: 1.3;
}

.article-body p { color: var(--text); }
.article-body p strong { color: var(--text); font-weight: 600; }
.article-body p em { color: var(--text-muted); font-style: italic; }

.article-body a { color: var(--cyan); text-decoration: underline; text-decoration-color: var(--cyan-dim); text-underline-offset: 3px; }
.article-body a:hover { color: #67e8f9; text-decoration-color: var(--cyan); }

.article-body ul, .article-body ol { padding-left: 1.6em; }
.article-body li { margin-top: 0.4em; }
.article-body li::marker { color: var(--text-dim); }

.article-body blockquote {
  border-left: 2px solid var(--border2);
  padding: 8px 0 8px 20px;
  color: var(--text-muted);
  font-style: italic;
}

.article-body code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 3px;
  color: var(--text);
}

.article-body pre {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan);
  border-radius: 3px;
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.65;
}

.article-body pre code { background: transparent; border: none; padding: 0; }

.article-body hr {
  border: none;
  border-top: 1px solid var(--border2);
  margin: 2.5em 0;
}

/* ── Tables ── */
.article-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  margin-top: 1.5em;
}

.article-body table th,
.article-body table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.article-body table th {
  background: var(--bg3);
  color: var(--text);
  font-weight: 600;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.article-body table td { color: var(--text-muted); }
.article-body table tbody tr:last-child td { border-bottom: none; }
.article-body table tbody tr:hover td { background: rgba(255,255,255,0.02); }

/* ── Author bio ── */
.article-author {
  display: flex; gap: 24px; align-items: flex-start;
  margin: 80px 0 56px;
  padding: 28px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan);
  border-radius: 3px;
}

.article-author .author-photo {
  width: 72px; height: 72px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(20%) contrast(1.05);
  flex-shrink: 0;
}

.article-author .author-name {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 8px;
}

.article-author p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.article-author p a { color: var(--cyan); }

/* ── Article CTA box ── */
.article-cta {
  margin: 56px 0;
  padding: 40px 32px;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-left: 3px solid var(--cyan);
  text-align: left;
  position: relative;
  overflow: hidden;
}

.article-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 0% 50%, var(--cyan-glow), transparent);
  pointer-events: none;
}

.article-cta h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
  position: relative;
}

.article-cta p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 24px;
  position: relative;
}

.article-cta .btn-cyan { position: relative; }

.btn-cyan {
  display: inline-block;
  background: var(--amber); color: var(--bg);
  font-family: var(--mono); font-size: 12px;
  font-weight: 500; letter-spacing: 1px;
  padding: 14px 32px; border-radius: 2px;
  text-decoration: none; border: none; cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-cyan:hover { background: var(--amber-hover); color: var(--bg); transform: translateY(-2px); }

/* ── Related articles ── */
.related { margin-top: 80px; }

.related-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.related-card {
  background: var(--bg);
  padding: 28px 24px;
  display: flex; flex-direction: column; gap: 12px;
  transition: background 0.2s;
  text-decoration: none;
}

.related-card:hover { background: var(--bg3); }

.related-meta { display: flex; justify-content: space-between; }
.related-date { font-family: var(--mono); font-size: 11px; color: var(--text-dim); }
.related-cat  { font-family: var(--mono); font-size: 10px; color: var(--cyan); letter-spacing: 2px; }
.related-card-title { font-size: 16px; font-weight: 600; color: var(--text); line-height: 1.3; }
.related-card-perex { font-size: 13px; color: var(--text-muted); line-height: 1.65; }
.related-cta { font-family: var(--mono); font-size: 11px; color: var(--cyan); margin-top: auto; }

/* ── BLOG INDEX (rozcestník /blog/) ── */
.blog-listing { max-width: 1080px; }
.blog-listing .article-header { margin-bottom: 44px; }

.listing-eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 2px;
  text-transform: uppercase; color: var(--cyan);
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 18px;
}
.listing-eyebrow::before { content: ''; width: 20px; height: 1px; background: var(--cyan); }
.accent { color: var(--cyan); }

.blog-featured {
  display: flex; flex-direction: column; gap: 14px;
  background: var(--bg2);
  border: 1px solid var(--border); border-left: 2px solid var(--cyan);
  padding: 40px 36px;
  text-decoration: none;
  transition: background 0.2s;
  margin-bottom: 24px;
}
.blog-featured:hover { background: var(--bg3); }
.blog-featured-label {
  font-family: var(--mono); font-size: 10px; letter-spacing: 2px;
  text-transform: uppercase; color: var(--bg);
  background: var(--cyan);
  padding: 3px 8px; border-radius: 2px;
}
.blog-featured .blog-list-title { font-size: 28px; }

.blog-list {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.blog-list-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 28px 26px;
  display: flex; flex-direction: column; gap: 14px;
  transition: background 0.2s, border-color 0.2s;
  text-decoration: none;
}
.blog-list-card:hover { background: var(--bg3); border-color: rgba(34,211,238,0.3); }
.blog-list-meta { display: flex; align-items: center; gap: 12px 20px; flex-wrap: wrap; font-family: var(--mono); font-size: 11px; }
.blog-list-date { color: var(--text-dim); white-space: nowrap; }
.blog-list-cat  { color: var(--cyan); letter-spacing: 2px; text-transform: uppercase; font-size: 10px; }
.blog-list-read { color: var(--text-dim); margin-left: auto; white-space: nowrap; }
.blog-list-title { font-size: 22px; font-weight: 600; color: var(--text); line-height: 1.3; }
.blog-list-perex { font-size: 15px; color: var(--text-muted); line-height: 1.7; }
.blog-list-cta { font-family: var(--mono); font-size: 11px; color: var(--cyan); }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 22px 56px;
  display: flex; justify-content: space-between; align-items: center;
}

footer p, footer a {
  font-family: var(--mono); font-size: 11px;
  color: var(--text-dim); text-decoration: none; letter-spacing: 1px;
}

footer a:hover { color: var(--cyan); }

/* ── MOBILE ── */
@media (max-width: 900px) {
  body > nav { padding: 16px 20px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .article { padding: 110px 20px 60px; }
  .article-header { margin-bottom: 40px; }
  .article-meta { gap: 16px; }

  .article-author { padding: 20px; gap: 16px; }
  .article-author .author-photo { width: 56px; height: 56px; }

  .article-cta { padding: 28px 20px; }

  .related-grid { grid-template-columns: 1fr; }

  .blog-list { grid-template-columns: 1fr; }
  .blog-list-card { padding: 24px 20px; }
  .blog-list-title { font-size: 19px; }
  .blog-featured { padding: 28px 22px; }
  .blog-featured .blog-list-title { font-size: 22px; }

  footer { padding: 18px 20px; flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 540px) {
  .article-body { font-size: 15px; }
  .article-perex { font-size: 17px; padding-left: 16px; }
  .article-body table { font-size: 13px; }
  .article-body table th, .article-body table td { padding: 10px 12px; }
}