/* Hack The Tower — style-v1.css (dark GitHub "Style D") */

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: #0d1117;
  color: #c9d1d9;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.65;
  font-size: 17px;
}

img { max-width: 100%; height: auto; display: block; }

a { color: #2ea043; text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color: #e6edf3;
  line-height: 1.3;
  font-weight: 700;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  background: #161b22;
  border-bottom: 1px solid #30363d;
  position: relative;
}
.header-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 20px;
  padding-bottom: 12px;
}
.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.site-logo { width: 200px; }
.site-logo img { max-width: 100%; height: auto; }
.site-title, .site-tagline { display: none; }

.nav-menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px;
}
.nav-menu a {
  color: #c9d1d9;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 14px;
  font-weight: 500;
}
.nav-menu a:hover { color: #2ea043; text-decoration: none; }
.nav-menu a.active { color: #2ea043; }

/* Hamburger (right side) */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #c9d1d9;
  margin: 5px 0;
  transition: all .3s;
}
.menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ---------- Hero (Style 8 — category pills) ---------- */
.hero {
  border-bottom: 1px solid #30363d;
  padding: 64px 0 56px;
  text-align: center;
}
.hero h1 {
  font-size: 40px;
  margin: 0 0 16px;
}
.hero p {
  max-width: 640px;
  margin: 0 auto 28px;
  color: #c9d1d9;
  font-size: 19px;
}
.cat-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.cat-pills a {
  border: 1px solid #2ea043;
  color: #2ea043;
  border-radius: 6px;
  padding: 8px 16px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 14px;
  font-weight: 500;
  transition: all .2s;
}
.cat-pills a:hover {
  background: #2ea043;
  color: #0d1117;
  text-decoration: none;
}

/* ---------- Cards ---------- */
.section-head {
  margin: 48px 0 20px;
  font-size: 22px;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.card-image {
  width: 100%;
  min-width: 0;
  overflow: hidden;
}
.card-image img { width: 100%; height: auto; display: block; }
.card-body { padding: 18px 20px 22px; }
.card .cat-tag {
  display: inline-block;
  color: #2ea043;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 8px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card h3 a { color: #e6edf3; }
.card h3 a:hover { color: #2ea043; text-decoration: none; }
.card .meta { font-size: 13px; color: #8b949e; margin: 0; }
.card .excerpt { margin: 10px 0 0; font-size: 15px; color: #c9d1d9; }

/* Featured */
.featured {
  display: grid;
  grid-template-columns: minmax(0,1.1fr) minmax(0,1fr);
  gap: 28px;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
  overflow: hidden;
  margin-top: 40px;
}
.featured .card-image { min-width: 0; }
.featured-body { padding: 32px 32px 32px 0; align-self: center; min-width: 0; }
.featured-body .cat-tag {
  display: inline-block;
  color: #2ea043;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 10px;
}
.featured-body h2 { font-size: 28px; margin: 0 0 12px; }
.featured-body h2 a { color: #e6edf3; }
.featured-body h2 a:hover { color: #2ea043; text-decoration: none; }
.featured-body .meta { font-size: 13px; color: #8b949e; margin: 0 0 12px; }
.featured-body p { margin: 0; }

/* ---------- Article ---------- */
.article { padding: 48px 24px 64px; }
.article-inner { max-width: 700px; margin: 0 auto; }
.article .cat-tag {
  display: inline-block;
  color: #2ea043;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 10px;
}
.article h1 { font-size: 34px; margin: 0 0 14px; }
.article .post-meta {
  font-size: 14px;
  color: #8b949e;
  margin-bottom: 28px;
}
.article-image {
  width: 100%;
  border: 1px solid #30363d;
  border-radius: 6px;
  margin-bottom: 32px;
}
.article-image img { width: 100%; height: auto; display: block; }

.article-content { font-size: 17px; }
.article-content h2 {
  font-size: 23px;
  margin: 36px 0 14px;
}
.article-content p { margin: 0 0 20px; }
.article-content a {
  color: #2ea043;
  text-decoration: underline;
  text-decoration-color: rgba(46,160,67,0.4);
  text-underline-offset: 3px;
}
.article-content a:hover { text-decoration-color: #2ea043; }

/* Related posts */
.related {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 64px;
}
.related h2 { font-size: 22px; margin: 0 0 20px; }
.related .card-grid { grid-template-columns: repeat(2, 1fr); }

/* ---------- Standard pages ---------- */
.page { padding: 48px 24px 64px; }
.page-inner { max-width: 700px; margin: 0 auto; }
.page h1 { font-size: 34px; margin: 0 0 8px; }
.page .page-sub { color: #8b949e; margin: 0 0 28px; }
.page h2 { font-size: 22px; margin: 32px 0 12px; }
.page p { margin: 0 0 18px; }
.page a { text-decoration: underline; text-decoration-color: rgba(46,160,67,0.4); text-underline-offset: 3px; }

/* ---------- Category page ---------- */
.cat-header { padding: 48px 24px 8px; text-align: center; }
.cat-header h1 { font-size: 34px; margin: 0 0 10px; }
.cat-header p { color: #8b949e; max-width: 600px; margin: 0 auto; }
.cat-list { padding: 32px 24px 64px; }

/* ---------- Footer ---------- */
.site-footer {
  background: #161b22;
  border-top: 1px solid #30363d;
  margin-top: 64px;
  padding: 48px 0 40px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: start;
}
.footer-logo img { width: 80px; height: auto; margin-bottom: 14px; }
.footer-about p { color: #8b949e; font-size: 15px; margin: 0; max-width: 380px; }
.footer-col h4 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #e6edf3;
  margin: 0 0 14px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: #c9d1d9; font-size: 15px; }
.footer-col a:hover { color: #2ea043; text-decoration: none; }
.footer-bottom {
  border-top: 1px solid #30363d;
  margin-top: 36px;
  padding-top: 20px;
  color: #8b949e;
  font-size: 13px;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .menu-toggle { display: block; position: absolute; right: 24px; top: 26px; }
  .nav-menu { display: none; flex-direction: column; width: 100%; gap: 0; padding: 12px 0; }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 10px 0; border-bottom: 1px solid #30363d; }
  .site-header { position: relative; }

  .card-grid { grid-template-columns: 1fr; }
  .related .card-grid { grid-template-columns: 1fr; }
  .featured { grid-template-columns: 1fr; }
  .featured-body { padding: 0 24px 28px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .hero h1 { font-size: 32px; }
}