:root {
  --bg: #0f1218;
  --panel: #141924;
  --panel2: #101522;
  --border: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.88);
  --muted: rgba(255, 255, 255, 0.62);
  --muted2: rgba(255, 255, 255, 0.45);
  --accent: #4ea1ff;
  --accent2: #7a5cff;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  --radius: 14px;
  --sidebar-w: 320px;
  --code: rgba(255, 255, 255, 0.06);
  --codeborder: rgba(255, 255, 255, 0.1);
  --ok: #37d67a;
  --warn: #ffcc66;
}
* {
  box-sizing: border-box;
}
html,
body {
  min-height: 100%;
}
body {
  margin: 0;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Arial,
    "Apple Color Emoji",
    "Segoe UI Emoji";
  background:
    radial-gradient(
      1200px 900px at 15% 10%,
      rgba(78, 161, 255, 0.18),
      transparent 55%
    ),
    radial-gradient(
      1200px 900px at 80% 15%,
      rgba(122, 92, 255, 0.15),
      transparent 55%
    ),
    radial-gradient(
      1200px 900px at 40% 95%,
      rgba(55, 214, 122, 0.1),
      transparent 55%
    ),
    var(--bg);
  color: var(--text);
}
a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(
    180deg,
    rgba(20, 25, 36, 0.95),
    rgba(16, 21, 34, 0.92)
  );
  border-right: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.brand {
  padding: 18px 18px 14px 18px;
  border-bottom: 1px solid var(--border);
}
.brand .title {
  font-weight: 800;
  letter-spacing: 0.2px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(78, 161, 255, 0.14);
  border: 1px solid rgba(78, 161, 255, 0.25);
  color: rgba(255, 255, 255, 0.86);
}
.brand .subtitle {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.35;
}
.nav {
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.82);
  border: 1px solid transparent;
}
.nav a .ico {
  width: 18px;
  text-align: center;
  opacity: 0.9;
}
.nav a .lbl {
  font-weight: 650;
  font-size: 13.5px;
}
.nav a .hint {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted2);
}
.nav a:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.06);
  text-decoration: none;
}
.nav a.active {
  background: linear-gradient(
    90deg,
    rgba(78, 161, 255, 0.18),
    rgba(122, 92, 255, 0.12)
  );
  border-color: rgba(78, 161, 255, 0.28);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.22);
}
.sidebarFooter {
  margin-top: auto;
  padding: 14px 14px 18px 14px;
  border-top: 1px solid var(--border);
}
.sidebarFooter .small {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}
.social {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.social a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.82);
}
.social a:hover {
  background: rgba(255, 255, 255, 0.05);
  text-decoration: none;
}
.main {
  padding: 28px 28px 48px 28px;
}
.shell {
  max-width: 1060px;
  margin: 0 auto;
}
.contentCard {
  background: linear-gradient(
    180deg,
    rgba(20, 25, 36, 0.85),
    rgba(16, 21, 34, 0.75)
  );
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 22px;
}
.contentCard header {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}
.contentCard header .meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.contentCard header h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.2px;
}
.contentCard header p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}
.pillRow {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.pill {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(255, 255, 255, 0.03);
  color: rgba(255, 255, 255, 0.78);
}
hr.sep {
  border: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 16px 0;
}
article {
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.86);
}
article h2 {
  margin: 18px 0 8px 0;
  font-size: 18px;
}
article h3 {
  margin: 14px 0 6px 0;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
}
article p {
  margin: 10px 0;
  color: rgba(255, 255, 255, 0.84);
}
article ul {
  margin: 10px 0 10px 22px;
}
article li {
  margin: 7px 0;
  color: rgba(255, 255, 255, 0.82);
}
article code {
  background: var(--code);
  border: 1px solid var(--codeborder);
  padding: 2px 6px;
  border-radius: 8px;
  font-family:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    monospace;
  font-size: 0.95em;
}
pre {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 14px 14px;
  overflow: auto;
  margin: 12px 0;
}
pre code {
  background: transparent;
  border: 0;
  padding: 0;
  border-radius: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.86);
}
.callout {
  border-radius: 14px;
  padding: 12px 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  margin: 12px 0;
}
.callout.ok {
  border-color: rgba(55, 214, 122, 0.3);
  background: rgba(55, 214, 122, 0.06);
}
.callout.warn {
  border-color: rgba(255, 204, 102, 0.28);
  background: rgba(255, 204, 102, 0.07);
}
.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Videos */
.videoGrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 10px 0 18px 0;
}
.videoCard {
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.05),
    rgba(255, 255, 255, 0.03)
  );
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}
.videoCard.featured {
  grid-column: 1 / -1;
}
.videoFrame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: rgba(0, 0, 0, 0.25);
}
.videoFrame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.videoMeta {
  padding: 10px 12px 12px 12px;
}
.videoMeta b {
  display: block;
  margin-bottom: 4px;
}
@media (max-width: 860px) {
  .videoGrid {
    grid-template-columns: 1fr;
  }
  .videoCard.featured {
    grid-column: auto;
  }
}

@media (max-width: 980px) {
  :root {
    --sidebar-w: 280px;
  }
}
@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: relative;
    height: auto;
  }
  .main {
    padding: 18px 14px 36px 14px;
  }
  .shell {
    max-width: 920px;
  }
  .grid2 {
    grid-template-columns: 1fr;
  }
}


/* AdSense placements */
.ocAd{
  margin: 14px 0;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.ocAd--h{
  margin-top: 12px;
  margin-bottom: 12px;
}
.ocAd--v{
  margin-top: 14px;
}

/* Brand download button */
.brandDlBtn{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(78,161,255,.35);
  background: linear-gradient(180deg, rgba(78,161,255,.22), rgba(122,92,255,.14));
  color: rgba(255,255,255,.92);
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
  transition: transform .12s ease, filter .12s ease, border-color .12s ease;
}
.brandDlBtn:hover{
  transform: translateY(-1px);
  filter: brightness(1.05);
  border-color: rgba(78,161,255,.55);
}
.brandDlBtn:active{
  transform: translateY(0px);
}
.brandDlBtn__ico{
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.10);
}
.brandDlBtn__txt b{
  display:block;
  font-size: 14px;
  line-height: 1.15;
}
.brandDlBtn__sub{
  display:block;
  margin-top: 2px;
  font-size: 12px;
  color: rgba(255,255,255,.70);
}
.brandDlBtn__ext{
  margin-left: auto;
  color: rgba(255,255,255,.55);
}

/* On small screens the sidebar stacks; avoid an overly tall ad column */
@media (max-width: 980px){
  .ocAd--v{ display:none; }
}