:root{
  --bg: #0b0f17;
  --panel: rgba(255,255,255,0.04);
  --panel-2: rgba(255,255,255,0.06);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.68);
  --muted-2: rgba(255,255,255,0.54);
  --border: rgba(255,255,255,0.12);
  --border-2: rgba(255,255,255,0.16);
  --accent: #7dd3fc;
  --accent-2:#60a5fa;
  --danger:#fb7185;
  --shadow: 0 18px 48px rgba(0,0,0,0.55);
  --radius: 14px;
  --radius-sm: 10px;
  --max: 1080px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

*{ box-sizing: border-box; }
html, body{ min-height:100%; }
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(900px 700px at 20% -10%, rgba(96,165,250,0.20), transparent 60%),
    radial-gradient(700px 600px at 90% 0%, rgba(125,211,252,0.14), transparent 55%),
    radial-gradient(900px 900px at 40% 120%, rgba(251,113,133,0.10), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a{ color: var(--accent); text-decoration: none; }
a:hover{ text-decoration: underline; }

.skip-link{
  position:absolute;
  top:8px;
  left:8px;
  background: #111827;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  transform: translateY(-120%);
  transition: transform .18s ease;
  z-index: 50;
}
.skip-link:focus{ transform: translateY(0); }

.sr-only{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

.layout{
  display:flex;
  min-height:100vh;
}

/* Sidebar */
.sidebar{
  width: 312px;
  padding: 18px 16px 14px;
  border-right: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
}

.brand{
  position: relative;
  padding: 14px 12px 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius);
  box-shadow: 0 10px 22px rgba(0,0,0,0.22);
}
.brand__title{
  display:inline-block;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand__tag{
  margin-top: 4px;
  font-size: 12px;
  color: var(--muted);
}

.sidebar-toggle{
  display:none;
  position:absolute;
  right:10px;
  top:10px;
  height: 36px;
  width: 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.18);
  color: var(--text);
  cursor:pointer;
}
.sidebar-toggle:hover{ border-color: var(--border-2); }
.sidebar-toggle:focus{ outline: 2px solid rgba(125,211,252,0.45); outline-offset: 2px; }

.sidebar-search{
  padding: 12px 4px 10px;
}
.sidebar-search__input{
  width:100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.18);
  color: var(--text);
  padding: 10px 12px;
  font-size: 13px;
}
.sidebar-search__input:focus{
  outline: 2px solid rgba(125,211,252,0.40);
  outline-offset: 2px;
}

.nav{
  padding: 8px 4px 14px;
  display:flex;
  flex-direction:column;
  gap: 2px;
}
.nav__section{
  margin: 10px 0 6px;
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--muted-2);
  padding: 0 10px;
}
.nav__link{
  padding: 9px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 13px;
}
.nav__link:hover{
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
  text-decoration: none;
}
.nav__link.is-active{
  background: rgba(125,211,252,0.10);
  border-color: rgba(125,211,252,0.22);
  color: #e9f8ff;
}

/* Sidebar footer */
.sidebar-footer{
  margin-top: 10px;
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}
.sidebar-footer__section + .sidebar-footer__section{
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed rgba(255,255,255,0.14);
}
.sidebar-footer__title{
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-bottom: 8px;
}
.sidebar-links{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-direction:column;
  gap: 6px;
}
.sidebar-links a{
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}
.sidebar-links a:hover{
  color: var(--text);
  text-decoration:none;
}
.sidebar-footer__meta{
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted-2);
}

/* Content */
.content{
  flex:1;
  padding: 18px 20px 30px;
}
.content-header{
  max-width: var(--max);
  margin: 0 auto 12px;
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  box-shadow: var(--shadow);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 14px;
}
.content-header__title{
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: 18px;
}
.content-header__actions{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  color: var(--text);
  font-weight: 800;
  font-size: 13px;
  text-decoration:none;
}
.btn:hover{
  border-color: var(--border-2);
  background: rgba(255,255,255,0.04);
  text-decoration:none;
}
.btn--primary{
  background: rgba(96,165,250,0.16);
  border-color: rgba(96,165,250,0.26);
}
.btn--ghost{
  background: rgba(0,0,0,0.18);
}



/* Doc typography */
.doc{
  max-width: var(--max);
  margin: 14px auto 0;
  padding: 18px 18px 8px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  box-shadow: var(--shadow);
}
.doc h1{ font-size: 34px; margin: 2px 0 10px; letter-spacing:-0.03em; }
.doc h2{ font-size: 22px; margin: 24px 0 10px; letter-spacing:-0.02em; }
.doc h3{ font-size: 16px; margin: 18px 0 8px; letter-spacing:-0.01em; }
.doc p{ margin: 10px 0; color: var(--text); }
.doc .lead{ font-size: 15px; color: var(--muted); margin-top: 6px; }
.doc .note{
  border-left: 3px solid rgba(125,211,252,0.45);
  background: rgba(125,211,252,0.08);
  padding: 12px 12px;
  border-radius: 12px;
  margin: 14px 0;
  color: var(--muted);
}
.doc .warn{
  border-left: 3px solid rgba(251,113,133,0.50);
  background: rgba(251,113,133,0.10);
  padding: 12px 12px;
  border-radius: 12px;
  margin: 14px 0;
  color: var(--muted);
}
.doc ul, .doc ol{
  margin: 8px 0 10px 18px;
  color: var(--text);
}
.doc li{ margin: 6px 0; }

.kbd{
  display:inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.22);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
}

.card-grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 12px;
  margin: 14px 0 8px;
}
.card{
  grid-column: span 6;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  border-radius: var(--radius);
  padding: 14px;
}
.card h3{ margin-top:0; }
.card p{ color: var(--muted); }

@media (max-width: 980px){
  .sidebar{ width: 290px; }
  .card{ grid-column: span 12; }
}
@media (max-width: 860px){
  .layout{ flex-direction: column; }
  .sidebar{
    width: auto;
    height: auto;
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .sidebar-toggle{ display:block; }
  .nav, .sidebar-footer{
    display: none;
  }
  .sidebar.is-open .nav,
  .sidebar.is-open .sidebar-footer{
    display: block;
  }
  .content{ padding: 16px 14px 28px; }
}

/* Code blocks */
pre{
  position: relative;
  overflow:auto;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(0,0,0,0.26);
  padding: 14px 14px;
  margin: 14px 0;
  box-shadow: 0 18px 44px rgba(0,0,0,0.35);
}
code{
  font-family: var(--mono);
  font-size: 12.5px;
  color: rgba(255,255,255,0.90);
}
.copy-btn{
  position:absolute;
  top: 10px;
  right: 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 7px 10px;
  font-weight: 800;
  font-size: 12px;
  cursor:pointer;
}
.copy-btn:hover{
  border-color: rgba(255,255,255,0.22);
  background: rgba(255,255,255,0.06);
}
.copy-btn:focus{
  outline: 2px solid rgba(125,211,252,0.40);
  outline-offset: 2px;
}

/* Footer */
.footer{
  max-width: var(--max);
  margin: 18px auto 0;
  color: var(--muted-2);
  font-size: 12px;
}
.footer__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 10px;
  padding: 10px 2px;
  border-top: 1px solid rgba(255,255,255,0.10);
}
.footer a{ color: var(--muted); }
.footer a:hover{ color: var(--text); text-decoration:none; }
.muted{ color: var(--muted); }


/* Responsive YouTube embeds */
.video-embed{
  position: relative;
  padding-top: 56.25%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #000;
}
.video-embed iframe{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}


/* Responsive video embeds */
.video{
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(0,0,0,0.25);
  box-shadow: 0 18px 44px rgba(0,0,0,0.35);
}
.video iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
}

.ad{
  max-width: var(--max);
  margin: 12px auto 0;
  padding: 0;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.10);
  background: transparent;
}
/* Give AdSense a stable, measurable box without transforms/filters */
.ad--responsive{
  width: 100%;
  min-height: 92px;
  overflow: visible;
}
.ad .adsbygoogle{
  display: block !important;
  width: 100% !important;
  height: auto;
}

.pillRow{
  max-width: var(--max);
  margin: 10px auto 0;
  display:flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pill{
  display:inline-flex;
  align-items:center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: -0.01em;
}