:root{
  --bg: #0b0f16;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.03);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.66);
  --border: rgba(255,255,255,.10);
  --shadow: 0 18px 60px rgba(0,0,0,.45);
  --primary: #7c3aed;
  --primary2: #a78bfa;
  --success: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;
  --codeBg: rgba(0,0,0,.32);
  --link: #a78bfa;
  --linkHover: #c4b5fd;
  --radius: 16px;
  --radius2: 12px;
  --sidebarW: 292px;
  --maxW: 1080px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

body.theme-light{
  --bg: #f6f7fb;
  --card: rgba(0,0,0,.05);
  --card2: rgba(0,0,0,.03);
  --text: rgba(0,0,0,.90);
  --muted: rgba(0,0,0,.62);
  --border: rgba(0,0,0,.10);
  --shadow: 0 18px 60px rgba(0,0,0,.12);
  --codeBg: rgba(0,0,0,.06);
  --link: #6d28d9;
  --linkHover: #5b21b6;
}

*{ box-sizing: border-box; }
html,body{ height: 100%; }
body{
  margin: 0;
  background: radial-gradient(1200px 700px at 70% -10%, rgba(124,58,237,.22), transparent 60%),
              radial-gradient(900px 500px at -10% 10%, rgba(167,139,250,.18), transparent 55%),
              var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
}

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

.topbar{
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: rgba(10,14,20,.72);
  backdrop-filter: blur(10px);
}
body.theme-light .topbar{ background: rgba(246,247,251,.78); }

.icon-btn{
  border: 1px solid var(--border);
  background: var(--card2);
  color: var(--text);
  border-radius: 12px;
  padding: 8px 10px;
  cursor: pointer;
}
.icon-btn:hover{ border-color: rgba(255,255,255,.18); }

.brand{
  font-weight: 900;
  letter-spacing: .2px;
  color: var(--text);
}
.brand .muted{ font-weight: 700; color: var(--muted); }
.topbar-spacer{ flex: 1; }

.topbar-search input{
  width: min(420px, 46vw);
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card2);
  color: var(--text);
  outline: none;
}
.topbar-search input:focus{
  border-color: rgba(167,139,250,.55);
  box-shadow: 0 0 0 4px rgba(124,58,237,.12);
}

.layout{
  display: grid;
  grid-template-columns: var(--sidebarW) 1fr;
  min-height: calc(100vh - 58px);
}

.sidebar{
  position: sticky;
  top: 58px;
  align-self: start;
  height: calc(100vh - 58px);
  overflow: auto;
  padding: 14px;
  border-right: 1px solid var(--border);
  background: rgba(0,0,0,.14);
}
body.theme-light .sidebar{ background: rgba(255,255,255,.48); }

.main{
  padding: 18px 16px 32px;
}

.doc{
  max-width: var(--maxW);
  margin: 0 auto;
}

.doc-header{
  padding: 18px 18px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card2);
  box-shadow: var(--shadow);
}
.doc-header h1{
  margin: 0 0 6px;
  font-size: clamp(22px, 2.3vw, 30px);
}
.doc-sub{
  color: var(--muted);
  font-size: 13px;
}

.doc-footer{
  margin-top: 22px;
  padding: 14px 16px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  background: var(--card2);
}

.nav-group{
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav-group:last-child{ border-bottom: none; }

.nav-title{
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 4px 6px 8px;
  font-weight: 900;
}

.nav-item{
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 9px 10px;
  margin: 4px 0;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--text);
}
.nav-item:hover{
  background: rgba(124,58,237,.10);
  border-color: rgba(167,139,250,.20);
  text-decoration: none;
}
.nav-item.active{
  background: rgba(124,58,237,.18);
  border-color: rgba(167,139,250,.35);
}
.nav-ico{ width: 22px; text-align: center; opacity: .95; }
.nav-txt{ font-weight: 750; font-size: 14px; }
.nav-sub{ display:block; color: var(--muted); font-size: 12px; margin-top: 1px; font-weight: 600; }

.card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card2);
  box-shadow: var(--shadow);
  padding: 16px 16px 14px;
}

.grid2{
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px;
  margin-top: 14px;
}
@media (max-width: 980px){
  .layout{ grid-template-columns: 1fr; }
  .sidebar{
    position: fixed;
    top: 58px;
    left: 0;
    width: min(92vw, 340px);
    height: calc(100vh - 58px);
    transform: translateX(-105%);
    transition: transform .2s ease;
    z-index: 50;
    border-right: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  body.sidebar-open .sidebar{ transform: translateX(0); }
  .overlay{
    position: fixed;
    inset: 58px 0 0 0;
    background: rgba(0,0,0,.40);
    z-index: 40;
  }
  body.sidebar-open .overlay{ display:block; }
  .grid2{ grid-template-columns: 1fr; }
}

.hero{
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 14px;
  align-items: stretch;
  margin-bottom: 14px;
}
@media (max-width: 980px){
  .hero{ grid-template-columns: 1fr; }
}

.hero h1{ margin: 0 0 6px; font-size: clamp(24px, 3.2vw, 40px); }
.hero-sub{ margin: 0; color: var(--muted); font-size: 14px; }
.hero-actions{ margin-top: 14px; display:flex; gap: 10px; flex-wrap: wrap; }

.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card2);
  color: var(--text);
  font-weight: 800;
}
.btn:hover{ text-decoration: none; border-color: rgba(167,139,250,.35); background: rgba(124,58,237,.10); }
.btn.primary{ background: rgba(124,58,237,.22); border-color: rgba(167,139,250,.45); }
.btn.primary:hover{ background: rgba(124,58,237,.28); }

.hero-card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card2);
  box-shadow: var(--shadow);
  padding: 16px;
}
.kpi-title{ font-weight: 900; margin-bottom: 8px; }
.checklist{ margin: 0; padding-left: 18px; color: var(--muted); }
.checklist li{ margin: 7px 0; }
.muted{ color: var(--muted); }

hr{
  border: none;
  border-top: 1px solid var(--border);
  margin: 18px 0;
}

.doc h2{ margin: 18px 0 8px; font-size: 18px; }
.doc h3{ margin: 16px 0 8px; font-size: 16px; }
.doc p{ margin: 10px 0; color: var(--text); }
.doc ul, .doc ol{ margin: 10px 0; padding-left: 20px; }
.doc li{ margin: 6px 0; }
.callout{
  margin: 14px 0;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(124,58,237,.10);
}
.callout.warn{ background: rgba(245,158,11,.10); border-color: rgba(245,158,11,.22); }
.callout.danger{ background: rgba(239,68,68,.10); border-color: rgba(239,68,68,.22); }
.callout .title{ font-weight: 900; margin-bottom: 4px; }

code, pre{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
code{
  padding: 2px 6px;
  border-radius: 8px;
  background: var(--codeBg);
  border: 1px solid var(--border);
}
pre{
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--codeBg);
  border: 1px solid var(--border);
  overflow: auto;
}

.table{
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.table th, .table td{
  padding: 10px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
.table th{ background: rgba(255,255,255,.04); font-size: 13px; letter-spacing: .02em; }
.table tr:last-child td{ border-bottom: none; }

.badge{
  display:inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card2);
  color: var(--muted);
  font-weight: 800;
  font-size: 12px;
}
.badge.ok{ color: rgba(16,185,129,.95); border-color: rgba(16,185,129,.35); background: rgba(16,185,129,.08); }
.badge.warn{ color: rgba(245,158,11,.95); border-color: rgba(245,158,11,.35); background: rgba(245,158,11,.08); }
.badge.bad{ color: rgba(239,68,68,.95); border-color: rgba(239,68,68,.35); background: rgba(239,68,68,.08); }

/* Promo highlight (Home) */
.promo-card{
  position: relative;
  overflow: hidden;
  border-color: rgba(167,139,250,.42);
  background: linear-gradient(180deg, rgba(124,58,237,.14), rgba(0,0,0,.00));
}
.promo-card::before{
  content:"";
  position:absolute;
  inset:-40px -60px auto -60px;
  height: 160px;
  background: radial-gradient(closest-side, rgba(167,139,250,.35), transparent 70%);
  filter: blur(10px);
  pointer-events:none;
}
.download-card{
  border-color: rgba(255,255,255,.14);
}
.promo-top{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 10px;
}
.badge.promo-badge{
  color: rgba(255,255,255,.92);
  border-color: rgba(167,139,250,.55);
  background: rgba(124,58,237,.22);
}
.promo-title{
  margin: 8px 0 8px;
}
.price-row{
  display:flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin: 10px 0 6px;
}
.old-price{
  font-weight: 900;
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  text-decoration-color: rgba(239,68,68,.55);
}
.new-price{
  font-weight: 1000;
  letter-spacing: .2px;
  font-size: clamp(26px, 3.2vw, 38px);
}
.price-suffix{
  font-weight: 900;
  color: rgba(16,185,129,.92);
  border: 1px solid rgba(16,185,129,.32);
  background: rgba(16,185,129,.08);
  padding: 4px 10px;
  border-radius: 999px;
}
.promo-actions{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 12px 0 6px;
}
.promo-actions .btn{
  white-space: nowrap;
}

/* Small screens: improve spacing and avoid overflow */
@media (max-width: 520px){
  .topbar-search input{ width: 54vw; }
  .btn{ width: 100%; justify-content: center; }
  .promo-actions .btn{ width: 100%; }
  .price-row{ gap: 8px; }
}

/* Gallery */
.gallery-grid{
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
  margin-top: 14px;
}
.gallery-item{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card2);
  box-shadow: var(--shadow);
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  text-align: left;
}
.gallery-item img{
  width: 100%;
  height: auto;
  display: block;
}
.gallery-meta{
  padding: 10px 12px 12px;
}
.gallery-title{
  font-weight: 900;
}
.gallery-sub{
  font-size: 12px;
}

@media (max-width: 980px){
  .gallery-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 560px){
  .gallery-grid{ grid-template-columns: 1fr; }
}

/* Lightbox */
.lightbox{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.72);
  z-index: 90;
  display: grid;
  place-items: center;
  padding: 16px;
}
.lightbox-figure{
  margin: 0;
  width: min(1100px, 96vw);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.28);
  box-shadow: var(--shadow);
}
.lightbox-figure img{
  display: block;
  width: 100%;
  height: auto;
}
.lightbox-cap{
  padding: 12px 14px 14px;
  color: rgba(255,255,255,.88);
}
.lightbox-close{
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 95;
}
.lightbox-nav{
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 95;
}
.lightbox-nav.left{ left: 12px; }
.lightbox-nav.right{ right: 12px; }

@media (max-width: 560px){
  .lightbox-nav{ top: auto; bottom: 16px; transform: none; }
  .lightbox-nav.left{ left: 12px; }
  .lightbox-nav.right{ right: 12px; }
  .lightbox-close{ top: 12px; right: 12px; }
}

/* --- Mobile/Web Responsive Clean (avoid clutter) --- */
.main .doc{
  max-width: 1120px;
  margin: 0 auto;
}
.doc{ padding-bottom: 40px; }

.hero{
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
  align-items: start;
}
.hero .card{ height: fit-content; }

hr{ opacity:.55; }

@media (max-width: 980px){
  .hero{ grid-template-columns: 1fr; }
  .main{ padding: 16px; }
  .doc-header h1{ font-size: clamp(26px, 4.2vw, 38px); }
}

@media (max-width: 860px){
  /* Reduce visual noise */
  .card{ box-shadow: none; }
  .topbar{ padding: 10px 12px; }
  .topbar-search{ display:none; }
  .layout{ grid-template-columns: 1fr; }
  .sidebar{
    position: fixed;
    top: 52px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    width: auto;
    max-width: 520px;
    border-radius: 18px;
    transform: translateX(-110%);
    transition: transform .18s ease;
    z-index: 80;
  }
  body.sidebar-open .sidebar{ transform: translateX(0); }
  .overlay{
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.62);
    z-index: 70;
  }
  body.sidebar-open .overlay{ display:block; }
}

@media (max-width: 520px){
  .main{ padding: 12px; }
  .doc{ padding: 0; }
  .doc-header{ padding: 14px 12px 10px; }
  .doc-header .doc-sub{ font-size: 12px; }
  .card{ padding: 14px; border-radius: 16px; }
  .callout{ padding: 12px; border-radius: 14px; }
  .btn{ font-size: 14px; padding: 10px 12px; }
  ul{ padding-left: 18px; }
  .price-suffix{ padding: 3px 9px; }
  .lightbox{ padding: 10px; }
}

/* Prevent overly wide content */
img, video, canvas, svg{ max-width: 100%; height: auto; }
pre{ overflow:auto; }

/* Overlay default hidden (mobile sidebar) */
.overlay{ display:none; }
body.sidebar-open .overlay{ display:block; }

@media (max-width: 980px){
  .hero .card ul{ columns: 2; column-gap: 22px; }
}
@media (max-width: 560px){
  .hero .card ul{ columns: 1; }
}