:root{
  --bg:#0d0d0d;
  --fg:#e6e6e6;
  --dim:#777;
  --border:#1f1f1f;
}

*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  max-width:960px;
  margin:0 auto;
  padding:48px 32px 96px;
  background:var(--bg);
  color:var(--fg);
  font:15px/1.7 system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
  animation:fade-in .5s ease both;
}
.page{
  transform-origin:top;
  transition:transform .3s ease;
  will-change:transform;
}
body:not(.landscape) .page{
  transform:scale(0.75);
}
body.landscape .page{
  transform:none;
}

@keyframes fade-in{from{opacity:0;}}

a{color:inherit;text-decoration:none;}
a:hover{opacity:.8;}

header{
  margin-bottom:48px;
  display:flex;
  align-items:baseline;
  gap:16px;
  flex-wrap:wrap;
  position:relative;
}

.logo{
  font-weight:700;
  letter-spacing:.02em;
  font-size:1.1rem;
}

.meta{color:var(--dim);}

nav{
  margin-left:auto;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

nav a{
  color:var(--dim);
  text-decoration:none;
  font-size:.85rem;
  text-transform:uppercase;
  letter-spacing:.06em;
}

nav a:hover{color:var(--fg);}

h1{
  font-size:1.4rem;
  margin:40px 0 8px;
}

h2{
  font-size:1rem;
  margin:40px 0 12px;
}

h3{
  font-size:.85rem;
  font-weight:600;
  margin:20px 0 8px;
  color:var(--dim);
  text-transform:uppercase;
  letter-spacing:.06em;
}

h4{
  font-size:.85rem;
  font-weight:600;
  margin:20px 0 8px;
  color:var(--dim);
}

p{margin:12px 0;color:#cfcfcf;}
p a{color:var(--dim);}

ul,ol{margin:12px 0;padding-left:24px;color:#cfcfcf;}
li{margin:4px 0;}

code{
  font:13px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;
}

pre{
  margin:0 0 16px;
  padding:16px;
  border:1px solid var(--border);
  overflow:auto;
  white-space:pre;
  font:13px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;
}

pre code{
  background:none;
  padding:0;
}

blockquote{
  margin:16px 0;
  padding:12px 16px;
  border-left:3px solid var(--border);
  color:var(--dim);
}

blockquote p{margin:0;color:var(--dim);}

hr{
  border:none;
  border-top:1px solid var(--border);
  margin:32px 0;
}

table{
  width:100%;
  border-collapse:collapse;
  margin:16px 0;
  font-size:.9rem;
}

th,td{
  padding:8px 12px;
  border:1px solid var(--border);
  text-align:left;
}

th{
  color:var(--dim);
  text-transform:uppercase;
  letter-spacing:.04em;
  font-size:.8rem;
}

footer{
  margin-top:64px;
  padding-top:24px;
  border-top:1px solid var(--border);
  color:var(--dim);
  font-size:.85rem;
  line-height:2;
}

footer a{color:var(--dim);margin:0 6px;}
footer > div + div{margin-top:.5em;}
footer > div:first-child{display:flex;justify-content:space-between;}

.slider{
  display:inline-flex;
  flex-direction:column;
  cursor:pointer;
  overflow:hidden;
  vertical-align:middle;
  height:1.2em;
  line-height:1.2em;
}

.slider-icon, .slider-text{
  flex-shrink:0;
  transition:transform .25s ease .1s;
}

.slider-text{
  white-space:nowrap;
  font-size:13px;
}

.slider-text a{color:var(--dim);text-decoration:none;}

.slider:hover .slider-icon{
  transform:translateY(-100%);
}

.slider:hover .slider-text{
  transform:translateY(-100%);
}

.dropdown{position:relative;display:inline-block;cursor:pointer;vertical-align:middle;}
.dropdown-menu{display:none;position:absolute;bottom:100%;left:50%;transform:translateX(-50%);background:var(--bg);border:1px solid var(--border);border-radius:4px;padding:4px 0;white-space:nowrap;z-index:10;margin-bottom:6px;}
.dropdown-menu::after{content:'';position:absolute;top:100%;left:50%;transform:translateX(-50%);width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid var(--border);}
@media(max-width:480px){.dropdown-menu{left:auto;right:0;transform:none;}.dropdown-menu::after{left:auto;right:10px;transform:none;}}
.dropdown.open .dropdown-menu{display:block;}
.dropdown-menu a{display:block;padding:4px 16px;color:var(--dim);text-decoration:none;font-size:13px;margin:0;}
.dropdown-menu a:hover{color:var(--fg);background:var(--border);}
#layout-toggle{position:fixed;top:12px;right:12px;cursor:pointer;color:var(--dim);user-select:none;line-height:1;padding:4px;opacity:.5;transition:transform .3s ease,opacity .15s;z-index:100;display:inline-block;will-change:transform,opacity;}
#layout-toggle svg{display:block;width:16px;height:16px;}
#layout-toggle:hover{opacity:1;}
body:not(.landscape) #layout-toggle{transform:rotate(90deg);}
body.landscape #layout-toggle{transform:rotate(0deg);}
.bottom-glow{position:fixed;bottom:0;left:0;right:0;height:60px;background:linear-gradient(to top, rgba(119,119,119,.15), transparent);opacity:0;pointer-events:none;z-index:98;transition:opacity .6s ease;will-change:opacity;}
.bottom-glow.show{opacity:1;}
.layout-hint{position:fixed;top:12px;right:40px;color:var(--dim);font-size:11px;line-height:1;padding:4px 8px;border:1px solid var(--border);border-radius:4px;background:var(--bg);opacity:0;transition:opacity .5s ease;pointer-events:none;white-space:nowrap;z-index:100;will-change:opacity;}
.layout-hint.show{opacity:.8;}
.layout-hint::after{content:'';position:absolute;top:50%;left:100%;transform:translateY(-50%);width:0;height:0;border-top:4px solid transparent;border-bottom:4px solid transparent;border-left:4px solid var(--border);}
.dropdown-trigger{color:var(--dim);margin:0 6px;}
.dropdown-trigger:hover{opacity:.8;}

strong{color:var(--fg);}

img{max-width:100%;}

.content{margin-top:32px;}

.section-list{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:12px;
  margin:24px 0;
}

.section-card{
  border:1px solid var(--border);
  padding:16px;
  text-decoration:none;
  color:var(--fg);
}

.section-card:hover{
  opacity:.8;
}

.section-card h3{
  margin:0 0 4px;
  font-size:.85rem;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--dim);
}

.section-card span{
  font-size:.9rem;
  color:var(--dim);
}