:root {
  --bg-main: #0d1117;
  --bg-card: #161b22;
  --bg-soft: #11161d;
  --text-main: #c9d1d9;
  --text-muted: #8b949e;
  --accent-primary: #58a6ff;
  --accent-code: #00ff41;
  --border-color: #30363d;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --font-sans: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent-primary); }
img { max-width: 100%; display: block; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 1.5rem; }

.site-header {
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
  background: linear-gradient(180deg, rgba(13,17,23,.98), rgba(13,17,23,.92));
  position: relative;
}
.header-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.1rem 0;
}
.header-brand-block { min-width: 0; }
.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  color: var(--accent-code);
  font-weight: 700;
  letter-spacing: .02em;
}
.site-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid rgba(0,255,65,.35);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(0,255,65,.08);
}
.site-logo-wordmark {
  white-space: nowrap;
}
.main-nav {
  min-width: 0;
  justify-self: center;
}
.nav-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
}
.nav-link {
  display: inline-block;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  padding-bottom: 0.2rem;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.nav-link:hover,
.nav-link.is-active {
  color: var(--text-main);
  border-bottom-color: var(--accent-primary);
}
.header-right-block {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  align-items: flex-end;
  min-width: 220px;
}
.search-form {
  display: flex;
  gap: 0.45rem;
  width: min(100%, 240px);
}
.search-form input[type="search"] {
  flex: 1;
  min-width: 0;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-soft);
  color: var(--text-main);
  font: inherit;
}
.search-form input[type="search"]::placeholder { color: var(--text-muted); }
.search-form button {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--accent-primary);
  cursor: pointer;
}
.search-form button:hover {
  border-color: var(--accent-primary);
}
.lang-list {
  display: flex;
  list-style: none;
  gap: 0.4rem;
  justify-content: flex-end;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
}
.lang-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  transition: all .18s ease;
}
.lang-list a:hover,
.lang-list a[aria-current="page"] {
  color: var(--text-main);
  border-color: var(--accent-primary);
  box-shadow: 0 0 14px rgba(88,166,255,.16);
}
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  cursor: pointer;
  width: 42px;
  height: 42px;
  padding: 0;
}
.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  position: relative;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  transition: all .2s ease;
  content: "";
}
.hamburger::before { position: absolute; top: -7px; }
.hamburger::after { position: absolute; top: 7px; }
body.menu-open .hamburger { background: transparent; }
body.menu-open .hamburger::before { transform: translateY(7px) rotate(45deg); }
body.menu-open .hamburger::after { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(100%, 380px);
  padding: 5.5rem 1.2rem 2rem;
  background: rgba(13,17,23,.98);
  border-left: 1px solid var(--border-color);
  transform: translateX(100%);
  transition: transform .22s ease;
  z-index: 1000;
  overflow-y: auto;
}
body.menu-open .mobile-menu { transform: translateX(0); }
.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.7rem;
}
.mobile-nav-list a {
  display: block;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  color: var(--text-main);
  font-family: var(--font-mono);
}
.mobile-extra {
  margin-top: 1.4rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border-color);
  display: grid;
  gap: 1rem;
}

.site-main { min-width: 0; }
.layout-wrapper,
.site-main--with-sidebar {
  display: grid;
  grid-template-columns: minmax(0, 2.3fr) minmax(280px, 0.9fr);
  gap: 2rem;
  align-items: start;
}
.content-area { min-width: 0; }
.sidebar {
  position: sticky;
  top: 1rem;
}
.sidebar-inner {
  display: grid;
  gap: 1rem;
}
.sidebar-block {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1rem;
}
.sidebar-block h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-code);
}
.sidebar-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.55rem;
}
.sidebar-manifesto p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.breadcrumb {
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: .82rem;
}
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
}
.breadcrumb-item:not(:last-child)::after {
  content: "›";
  color: var(--text-muted);
}
.breadcrumb a { color: var(--accent-primary); }
.breadcrumb span[aria-current="page"] { color: var(--text-main); }

.page-content {
  max-width: 820px;
  margin: 0 auto;
}
.page-content--wide {
  max-width: 100%;
}
.home-content {
  width: min(100%, 1120px);
  margin: 0 auto;
}
.home-listing,
.categories-hub-page {
  width: 100%;
}
.home-section-head,
.hub-header {
  margin-bottom: 1.25rem;
}
.sidebar-categories-dropdown {
  overflow: hidden;
}
.categories-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
  padding: .9rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--text-main);
  cursor: pointer;
}
.toggle-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .12rem;
  font-family: var(--font-mono);
}
.toggle-sub {
  color: var(--text-muted);
  font-size: .75rem;
}
.chev {
  width: 18px;
  height: 18px;
  color: var(--accent-primary);
  transition: transform .18s ease;
  flex-shrink: 0;
}
.categories-toggle[aria-expanded="true"] .chev {
  transform: rotate(180deg);
}
.categories-panel {
  margin-top: .8rem;
}
.cat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}
.cat-item a {
  display: block;
  padding: .6rem .75rem;
  border: 1px solid rgba(255,255,255,.05);
  border-radius: 8px;
  background: rgba(255,255,255,.02);
}
.cat-item a:hover {
  border-color: var(--accent-primary);
}
.cat-name {
  color: var(--text-main);
}
.category-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}
.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: transform .18s ease, border-color .18s ease;
}
.category-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-primary);
}
.category-card-link {
  display: block;
  padding: 1rem;
  height: 100%;
}
.category-card-icon {
  display: inline-flex;
  width: 2.4rem;
  height: 2.4rem;
  align-items: center;
  justify-content: center;
  margin-bottom: .75rem;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  font-size: 1.15rem;
}
.category-card-title {
  margin: 0 0 .45rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-main);
}
.category-card-desc {
  margin: 0;
  color: var(--text-muted);
  font-size: .95rem;
}

.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--border-color);
  padding: 2rem 0 3rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.6fr 0.8fr;
  gap: 2rem;
}
.site-footer h2, .footer-logo {
  font-family: var(--font-mono);
}
.footer-note { color: var(--text-muted); }
.footer-category-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}
.footer-category-columns ul,
.footer-legal ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.55rem;
}

.btn-primary,
.btn-secondary {
  padding: .72rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
}
.btn-primary {
  border-color: rgba(88,166,255,.4);
  color: var(--accent-primary);
}
.btn-secondary { color: var(--text-muted); }
.cookie-consent-container {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  padding: 1rem;
  background: rgba(13,17,23,.96);
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -10px 30px rgba(0,0,0,.25);
}
.cookie-content {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.cookie-content p {
  margin: 0;
  color: var(--text-muted);
}
.cookie-content a { color: var(--accent-primary); }
.cookie-buttons {
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
}

@media (max-width: 1100px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
  }
  .category-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .layout-wrapper,
  .site-main--with-sidebar,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
  }
}

@media (max-width: 820px) {
  .header-inner {
    grid-template-columns: auto auto;
  }
  .main-nav,
  .header-right-block {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
    justify-self: end;
  }
}

@media (max-width: 680px) {
  .container {
    padding: 0 1rem;
  }
  .cookie-content {
    flex-direction: column;
    align-items: flex-start;
  }
  .category-card-grid {
    grid-template-columns: 1fr;
  }
}