:root{
  /* Фон/палитра 1-в-1 как на главной */
  --bg:#070A12;
  --bg2:#0b1220;
  --card1: rgba(13,23,38,.78);
  --card2: rgba(13,23,38,.40);
  --text:#e9f0ff;
  --muted:#a9b6cf;
  --shadow: 0 18px 55px rgba(0,0,0,.45);
  --line: rgba(255,255,255,.08);

  /* UI tabs */
  --nl-bg: rgba(11,12,16,.92);
  --nl-card: rgba(255,255,255,.06);
  --nl-card2: rgba(255,255,255,.10);
  --nl-bd: rgba(255,255,255,.12);
  --nl-txt: #fff;
  --nl-txt2: rgba(255,255,255,.72);

  --nl-border:rgba(255,255,255,.10);
  --nl-border2:rgba(255,255,255,.18);
  --nl-text:#fff;
  --nl-muted:rgba(255,255,255,.75);
  --nl-shadow: 0 10px 30px rgba(0,0,0,.35);
  --nl-side-w: 280px;
  --nl-side-w-collapsed: 76px;
  --nl-top-h: 52px;
}
:root[data-theme="light"]{
  --bg:#f3f6ff;
  --bg2:#e9f0ff;
  --card1: rgba(255,255,255,.85);
  --card2: rgba(255,255,255,.60);
  --text:#0b1220;
  --muted:#445067;
  --shadow: 0 16px 42px rgba(12,18,32,.15);
  --line: rgba(12,18,32,.10);

  --nl-bg: rgba(250,250,252,.92);
  --nl-card: rgba(0,0,0,.05);
  --nl-card2: rgba(0,0,0,.09);
  --nl-bd: rgba(0,0,0,.12);
  --nl-txt: #0b0c10;
  --nl-txt2: rgba(0,0,0,.65);

  --nl-border:rgba(0,0,0,.12);
  --nl-border2:rgba(0,0,0,.18);
  --nl-text:#0b0c10;
  --nl-muted:rgba(0,0,0,.65);
  --nl-shadow: 0 10px 30px rgba(0,0,0,.12);
}

/* Общий фон как на главной (для всех разделов) */
body{
  margin:0;
  min-height:100vh;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 15% 10%, rgba(139,92,246,.35), transparent 60%),
    radial-gradient(1000px 600px at 85% 20%, rgba(34,211,238,.22), transparent 60%),
    radial-gradient(900px 500px at 35% 90%, rgba(139,92,246,.16), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2) 60%) !important;
  position:relative;
}
body:before, body:after{
  content:"";
  position:fixed; inset:-30%;
  pointer-events:none;
  background:
    radial-gradient(closest-side, rgba(34,211,238,.10), transparent 70%),
    radial-gradient(closest-side, rgba(139,92,246,.10), transparent 70%);
  filter: blur(28px);
  opacity:.55;
  transform: translate3d(0,0,0);
  animation: nlFloatBG 14s ease-in-out infinite;
}
body:after{
  animation-duration: 18s;
  opacity:.35;
}
@keyframes nlFloatBG{
  0%{ transform: translate3d(-2%, -1%, 0) scale(1.0); }
  50%{ transform: translate3d(2%, 1%, 0) scale(1.03); }
  100%{ transform: translate3d(-2%, -1%, 0) scale(1.0); }
}

.nl-tabs-topbar{
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nl-top-h);
  display:flex;
  align-items:center;
  gap:10px;
  padding: 0 12px;
  background: var(--nl-bg,.80);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--nl-border);
  z-index: 9999;
}

.nl-tabs-burger,
.nl-tabs-collapse{
  width: 40px; height: 38px;
  display:inline-flex; align-items:center; justify-content:center;
  border-radius: 12px;
  border: 1px solid var(--nl-border);
  background: var(--nl-card);
  color: var(--nl-text);
  cursor: pointer;
  box-shadow: var(--nl-shadow);
  transition: transform .12s ease, background .15s ease, border-color .15s ease, filter .15s ease;
  will-change: transform;
}
.nl-tabs-burger:hover,
.nl-tabs-collapse:hover{ background: rgba(255,255,255,.06); transform: translateY(-1px) scale(1.02); }
.nl-tabs-burger:active,
.nl-tabs-collapse:active{ transform: translateY(0) scale(.98); filter: brightness(1.08); }

.nl-tabs-collapse{ display:none; }

.nl-tabs-crumb{
  flex: 1;
  color: var(--nl-muted);
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nl-tabs-topstatus{
  margin-left: auto;
  display:flex;
  align-items:center;
  gap:8px;
  padding: 7px 10px;
  border: 1px solid var(--nl-border);
  border-radius: 14px;
  background: rgba(255,255,255,.03);
  color: var(--nl-muted);
  font-size: 13px;
  box-shadow: var(--nl-shadow);
}
.nl-tabs-crumb b{ color: var(--nl-text); }

.nl-tabs-side{
  position: fixed;
  top: 0; left: 0;
  width: var(--nl-side-w);
  height: 100vh;
  background: rgba(255,255,255,.03);
  backdrop-filter: blur(12px);
  border-right: 1px solid var(--nl-border);
  z-index: 10000;
  transform: translateX(-102%);
  transition: transform .18s ease, width .18s ease;
  box-shadow: var(--nl-shadow);
  display:flex;
  flex-direction: column;
}

.nl-tabs-side.open{ transform: translateX(0); }

/* brand */
.nl-tabs-side .nl-tabs-brand{
  padding: 14px 14px 10px 14px;
  margin-top: calc(var(--nl-top-h) + 4px);
  display:flex;
  flex-direction: column;
  gap:10px;
}

.nl-tabs-logo{
  width: 148px;
  max-width: 100%;
  height: auto;
  display:block;
  filter: drop-shadow(0 10px 18px rgba(0,0,0,.35));
}

.nl-tabs-brandtext .t1{ color: var(--nl-text); font-weight: 800; font-size: 18px; line-height: 1; }
.nl-tabs-brandtext .t2{ color: var(--nl-muted); font-size: 12px; margin-top: 4px; }

.nl-tabs-online{
  display:flex;
  align-items:center;
  gap:8px;
  padding: 8px 10px;
  border: 1px solid var(--nl-border);
  border-radius: 14px;
  background: rgba(255,255,255,.03);
  color: var(--nl-muted);
  font-size: 13px;
}
.nl-tabs-dot{
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.28);
  box-shadow: 0 0 0 2px rgba(0,0,0,.25) inset;
}
.nl-tabs-dot.on{ background: #2ee59d; }
.nl-tabs-dot.off{ background: #ff5d5d; }

.nl-tabs-nav{
  padding: 10px 10px 14px 10px;
  display:flex;
  flex-direction: column;
  gap: 8px;
}

.nl-tabs-link{
  display:flex;
  align-items:center;
  gap:10px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--nl-border);
  background: rgba(255,255,255,.03);
  text-decoration: none;
  color: var(--nl-text);
  transition: background .15s ease, border-color .15s ease, transform .12s ease, filter .15s ease;
  will-change: transform;
}
.nl-tabs-link:hover{ background: rgba(255,255,255,.07); transform: translateY(-1px); }
.nl-tabs-link:active{ transform: translateY(0) scale(.99); filter: brightness(1.05); }
.nl-tabs-link.active{ background: rgba(255,255,255,.12); border-color: var(--nl-border2); }

.nl-tabs-ico{ width: 22px; text-align:center; }
.nl-tabs-ico svg{ width:18px; height:18px; display:block; margin:0 auto; opacity:.95; }
.nl-tabs-txt{ white-space: nowrap; overflow:hidden; text-overflow: ellipsis; }

.nl-tabs-footer{
  margin-top:auto;
  padding: 12px 14px;
  color: var(--nl-muted);
  border-top: 1px solid var(--nl-border);
}

.nl-tabs-overlay{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 9998;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
}

.nl-tabs-overlay.open{
  opacity: 1;
  pointer-events: auto;
}

/* Push page content down from topbar always */
body{ padding-top: var(--nl-top-h) !important; }

/* Desktop pinned */
@media (min-width: 1100px){
  .nl-tabs-side{ transform: translateX(0); }
  .nl-tabs-overlay{ display:none; }
  body{ padding-left: var(--nl-side-w) !important; }
  .nl-tabs-topbar{ left: var(--nl-side-w); }
  .nl-tabs-burger{ display:none; }
  .nl-tabs-collapse{ display:inline-flex; }
  .nl-tabs-side .nl-tabs-brand{ margin-top: 10px; }
}

/* Desktop collapsed mode */
@media (min-width: 1100px){
  html.nl-tabs-collapsed body{ padding-left: var(--nl-side-w-collapsed) !important; }
  html.nl-tabs-collapsed .nl-tabs-topbar{ left: var(--nl-side-w-collapsed); }
  html.nl-tabs-collapsed .nl-tabs-side{ width: var(--nl-side-w-collapsed); }

  html.nl-tabs-collapsed .nl-tabs-logo{ width: 44px; }
  html.nl-tabs-collapsed .nl-tabs-brandtext,
  html.nl-tabs-collapsed .nl-tabs-online,
  html.nl-tabs-collapsed .nl-tabs-footer{ display:none; }

  html.nl-tabs-collapsed .nl-tabs-link{
    justify-content:center;
    padding: 10px;
  }
  html.nl-tabs-collapsed .nl-tabs-ico{ width:auto; }
  html.nl-tabs-collapsed .nl-tabs-txt{ display:none; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce){
  .nl-tabs-side, .nl-tabs-overlay, .nl-tabs-link, .nl-tabs-burger, .nl-tabs-collapse{
    transition: none !important;
  }
}


/* Theme button */
.nl-tabs-footer{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.nl-tabs-themebtn{
  display:flex;
  align-items:center;
  gap:10px;
  justify-content:flex-start;
  width:100%;
  padding:10px 10px;
  border-radius:12px;
  border:1px solid var(--nl-bd);
  background: var(--nl-card);
  color: var(--nl-txt);
  cursor:pointer;
  transition: transform .08s ease, background .15s ease, border-color .15s ease;
}
.nl-tabs-themebtn:hover{ background: var(--nl-card2); transform: translateY(-1px); }
.nl-tabs-themebtn:active{ transform: translateY(0px) scale(.99); }
.nl-tabs-themebtn .i{ display:inline-flex; width:18px; height:18px; }
.nl-tabs-themebtn .i svg{ width:18px; height:18px; display:block; }

.nl-tabs-footcopy{ opacity:.75; font-size:12px; color: var(--nl-txt2); }

/* Прелоадер 1-в-1 как на главной (для всех страниц кроме главной, где уже есть #preloader) */
#nl-preloader{
  position:fixed; inset:0; z-index:9999;
  background:linear-gradient(180deg, var(--bg), var(--bg2));
  display:none; align-items:center; justify-content:center;
}
#nl-preloader.show{ display:flex; }
#nl-preloader .box{
  display:flex; flex-direction:column; gap:10px; align-items:center;
  padding:18px 20px;
  border-radius:22px;
  border:1px solid var(--line);
  background:linear-gradient(180deg, var(--card1), var(--card2));
  box-shadow: var(--shadow);
}
#nl-preloader .img{
  width:64px;height:64px;border-radius:20px;overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
}
:root[data-theme="light"] #nl-preloader .img{ border-color: rgba(12,18,32,.10); }
#nl-preloader .img img{width:100%;height:100%;object-fit:cover;display:block}
#nl-preloader .bar{
  width:160px;height:8px;border-radius:99px;
  background:rgba(255,255,255,.10);overflow:hidden;
}
:root[data-theme="light"] #nl-preloader .bar{ background: rgba(12,18,32,.10); }
#nl-preloader .bar i{
  display:block;height:100%;width:40%;
  background:linear-gradient(90deg, rgba(34,211,238,.8), rgba(139,92,246,.8));
  border-radius:99px;
  animation: nlLoadbar 1.2s ease-in-out infinite;
}
@keyframes nlLoadbar{
  0%{ transform: translateX(-60%); }
  50%{ transform: translateX(70%); }
  100%{ transform: translateX(220%); }
}


/* ===== Mobile optimizations & stability ===== */
@media (max-width: 900px){
  /* Avoid heavy effects on phones (less jank) */
  body:before, body:after{ display:none !important; }
  .nl-tabs-topbar{ backdrop-filter: blur(10px) saturate(120%) !important; -webkit-backdrop-filter: blur(10px) saturate(120%) !important; }
  .nl-tabs-side{ backdrop-filter: blur(14px) saturate(125%) !important; -webkit-backdrop-filter: blur(14px) saturate(125%) !important; height: 100dvh; }
  .nl-tabs-topstatus{ box-shadow:none !important; }
  .nl-tabs-burger, .nl-tabs-collapse{ box-shadow:none !important; }
  .nl-tabs-link{ box-shadow:none !important; }
  #nl-preloader .box{ box-shadow:none !important; }

  /* Make overlay always cover and prevent layout "push" bugs */
  .nl-tabs-overlay{ background: rgba(0,0,0,.55); }

  /* When menu is open on phone: lock background scroll */
  html.nl-tabs-open, html.nl-tabs-open body{
    overflow:hidden !important;
    height:100% !important;
    touch-action:none;
  }

  /* A bit smaller sidebar for narrow screens */
  :root{ --nl-side-w: 270px; }
}



.nl-tabs-side{
  padding-bottom: env(safe-area-inset-bottom);
}



/* Hide scrollbar (scroll works) */
.nl-tabs-nav{overflow-y:auto; scrollbar-width:none;}
.nl-tabs-nav::-webkit-scrollbar{width:0;height:0;}


/* Auth button in topbar */
.nl-tabs-auth{margin-left:10px;padding:8px 12px;border-radius:14px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.08);color:var(--nl-text);text-decoration:none;font-weight:800;font-size:13px;white-space:nowrap;box-shadow:var(--nl-shadow)}
.nl-tabs-auth:hover{background:rgba(255,255,255,.12)}