:root,[data-theme="light"]  {
  --color-primary: #006AF9;
  --color-secondary: #14C8C8;
  --color-background: #f5f5f7;
  --color-surface: #ffffff;
  --color-surface-transparent: #ffffffbb;  
  --color-surface-green: #caffca;
  --color-on-primary: #ffffff;
  --color-on-secondary: #ffffff;
  --color-on-surface: #444444;
  --color-on-background: #444444;
  --color-gray2: #ddd;
  --color-gray: #bbb;
  --color-on-gray: #444444;
/*  --color-active: #00ff00;
  --color-on-active: #000000;*/
  --color-error: #d91818;
  --color-on-error: #ffffff;
  --color-link: var(--color-primary);
  --border-radius: 20px;
  --content-width: min(1000px, calc(100vw - 40px));
  --header-height: 60px;
  font-size:17px;
/*  --logo: url();
  --noimage: url(/public/media/img/noimage.)*/
}

[data-theme="dark"]{
  --color-primary: #2D66F6;
  --color-link: #66a4fb;
  --color-secondary: #087878;
  --color-background: #272822;
  --color-surface: #353434;
  --color-surface-transparent: #353434aa;
  --color-surface-green: #225c21;
  --color-on-primary: #d5d5d5;
  --color-on-secondary: #d5d5d5;
  --color-on-surface: #d4d3d3;
  --color-on-background: #cccccc;
  --color-gray2: #555;
  --color-gray: #888888;
  --color-on-gray: #ffffff;
}

.color-primary {  background-color: var(--color-primary);  color: var(--color-on-primary);}
.color-secondary {  background-color: var(--color-secondary);  color: var(--color-on-secondary);}
.color-surface {  background-color: var(--color-surface);  color: var(--color-on-surface);}
h1,h2,h3,h4,h5,h6 {margin:1rem 0; }
h1, .h1 {font-size: 1.5rem; font-weight:bold;}
h2, .h2 {font-size: 1.25rem; font-weight:bold;}
h3, .h3 {font-size: 1.1rem; font-weight:bold;}


body {
  transition: background 0.5s, color 0.5s;
  background-color: var(--color-background);
  color: var(--color-on-background);
  font-family: "Roboto", Helvetica;
  font-size: 17px;
  margin:0;
  padding:0;
  max-width:100%;
}
@media (max-width:500px) {
  body{font-size:14px;}
}
*:focus{outline:none}
* {box-sizing: border-box;}
input,button,textarea {font-size:inherit; color:inherit; font-family: inherit;}
img {max-width:100%;}
iframe {display:block;} /* убирает отступ снизу */

header {
  padding: 10px max(calc(50vw - 600px), 10px);
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--header-height);
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(28px) saturate(160%) brightness(0.8);
  -webkit-backdrop-filter: blur(28px) saturate(160%) brightness(0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 32px rgba(0,0,0,0.40);
  isolation: isolate;
}
header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    108deg,
    rgba(255,255,255,0.18) 0%,
    rgba(255,255,255,0.04) 40%,
    rgba(255,255,255,0.10) 100%
  );
  pointer-events: none;
  z-index: -1;
}
a {color:var(--color-link); text-decoration:none;}
header a {color: rgba(255,255,255,0.9);}
.maincontainer {padding: 5rem max(calc(50vw - 600px), 10px); padding-bottom:20rem; display:flex; gap:1rem; min-height:calc(100dvh - var(--header-height)); will-change: background-position; }
footer { display:none; }
content {flex:1; max-width:min(800px,100vw); width:min(800px,100vw); margin: 0 auto; }
aside {width:calc(400px - 1rem); display:block;}
/*s-element-aside {position:sticky; top:74px;}*/
hr { margin:1rem auto; width:50%; display:block; height: 1px; border: 0;border-bottom:1px solid var(--color-gray);}

.logo {font-size:1.8rem; font-weight:bold; color:inherit; text-decoration:none; flex-shrink:0;}
.logo img {height: 50px; width:150px; object-fit: contain;  transform: translateY(3px)}
@media(max-width:500px) {
  .logo img {width:120px;}
}
header {display:flex; width:100%; justify-content: space-between;}
s-user-headerwidget , .s-headerwidget-stats {
  display : flex;
  gap: 0.5rem;
  align-items: center;
  justify-content: flex-end;
  /*flex-shrink: 0;*/
  /*width: 170px;*/
}

s-element-mainmenu {}
s-user-avatar {flex-shrink:0}
header .mainnav {display:none;}

@media (max-width:1000px) {
  html { overflow-x: hidden; }
  .s-headerwidget-stats { display: none; }

  aside {
    display: block;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(500px, 100vw);
    overflow-y: auto;
    z-index: 9;
    background: var(--color-background);
    padding: 1rem;
    padding-top: calc(var(--header-height) + 0.75rem);
    transform: translateX(min(500px, 100vw));
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  body.menu-open aside {
    transform: translateX(0);
  }

  .maincontainer {
    transition: margin-left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding-left:0;
    padding-right:0;
  }
  body.menu-open .maincontainer {
    margin-left: calc(-1 * min(500px, 100vw));
  }
}

@media (min-width:500px) and (max-width:1000px) {
  body.menu-open::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 8;
    background: rgba(0,0,0,0.35);
    backdrop-filter: blur(6px);
    transition: all 0.4s ease;
  }
}

.paper{
  padding:1rem; 
  margin-bottom:1rem;
  display:block;
  box-shadow:0 18px 42px rgba(15, 23, 42, .07);
  background: var(--color-surface);
  color: var(--color-on-surface);
  border-radius: var(--border-radius);
  display:flex;
  flex-direction: column;
  gap:0.5rem;
  max-width:max(100%,100vw);
  word-break: break-word;
}
.paper.transparent {  background: var(--color-surface-transparent); }
.paper.error {color:var(--color-on-error); background-color: var(--color-error);}
.floatlist {  display:flex;  flex-direction: column;  gap:0.5rem;}


.flowsettings {
  background:var(--color-surface); margin: 1rem -1rem -1rem -1rem; 
  border-bottom-right-radius: var(--border-radius);
  border-bottom-left-radius: var(--border-radius);
  max-height:0;
  transition: max-height ease-in-out 0.5s;
  overflow:hidden;
}
.flowsettings.open {max-height:400px; }
.flowsettingstoggle {
  position:absolute;
  left:50%;
  bottom:-1rem;
  transform: translate(-50%,50%);
  width:150px;
  padding:0.1rem;
  text-align:center;
  background:var(--color-gray);
  color: var(--color-on-gray);
  border-radius: var(--border-radius);
  font-size:0.8rem;
  cursor:pointer;
}
.flowsettingstoggle::before{content:"▼ "; font-size:0.5rem;}
.flowsettingstoggle::after{content:" ▼"; font-size:0.5rem;}
.flowsettings.open + .flowsettingstoggle::before{content:"▲ "; font-size:0.5rem;}
.flowsettings.open + .flowsettingstoggle::after{content:" ▲"; font-size:0.5rem;}




.postcontent .spoiler{  position:relative; color: transparent;   text-shadow: 0 0 8px var(--color-on-surface);   cursor: pointer; }
.postcontent .spoiler:before {  content: 'spoiler';   color:var(--color-on-surface); text-shadow: none; position: absolute;  top: 50%;  left: 50%;  transform: translate(-50%, -50%);  white-space: nowrap; font-size:0.8rem; }
.postcontent .spoiler * {color:inherit;}

blockquote {padding: 1px 1rem; background: var(--color-surface-green); border-radius: var(--border-radius); margin:1rem 0; font-style: italic;}
pre {padding:1rem; color: var(--color-on-background); background: var(--color-background); border-radius: var(--border-radius); margin: 1rem 0;
  display: block;              /* чтобы был как блочный pre */
  white-space: pre;       /* сохраняет переносы строк и пробелы */
  font-family: monospace;      /* моноширинный шрифт */
  line-height: 1.3;
  overflow-x: auto;
  padding: 1em;
  border-radius: var(--border-radius);
}
pre code {display: block; direction:ltr;}
code {font-family: monospace; padding:2px 3px; margin:0 1px; color: var(--color-on-background); background: var(--color-background);  direction:ltr; unicode-bidi: isolate;}

.katex-display {  background-color: var(--color-background); padding:1rem; border-radius: var(--border-radius); direction:ltr;   unicode-bidi: isolate;}
.katex { background-color: var(--color-background); padding:3px 5px ; margin-left:3px; margin-right:3px; border-radius: var(--border-radius); direction:ltr;   unicode-bidi: isolate;}