/* =======================
   Premium Neutral — clean, contrast, readable
======================= */
:root{
  --bg:#f6f7fb;
  --card:#ffffff;

  --text:#111827;
  --muted:#4B5563;
  --muted2:#6B7280;

  --accent:#111827;

  --border: rgba(17,24,39,.10);
  --border2: rgba(17,24,39,.14);

  --radius:24px;
  --radius-sm:18px;

  --shadow-base:
    0 1px 0 rgba(16,24,40,.06),
    0 10px 28px rgba(16,24,40,.06);

  --shadow-hover:
    0 1px 0 rgba(16,24,40,.06),
    0 18px 50px rgba(16,24,40,.12);

  --container: 1200px;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 120px;
}

html[data-theme="dark"]{
  --bg:#0B0D12;
  --card:#12151C;

  --text:#F9FAFB;
  --muted:#9CA3AF;
  --muted2:#6B7280;

  --border: rgba(255,255,255,.10);
  --border2: rgba(255,255,255,.14);

  --accent:#FFFFFF;

  --shadow-base:
    0 1px 0 rgba(0,0,0,.55),
    0 10px 30px rgba(0,0,0,.55);

  --shadow-hover:
    0 1px 0 rgba(0,0,0,.55),
    0 20px 60px rgba(0,0,0,.75);
}

/* Base */
*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
:root{scroll-padding-top:96px}

body{
  margin:0;
  padding-top:72px; /* fixed header offset */
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  font-size:18px;
}

a{color:inherit; text-decoration:none}

.container{
  width: min(100% - 48px, var(--container));
  margin: 0 auto;
}

/* =======================
   Header (fixed)
======================= */
.site-header{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;

  background: rgba(255,255,255,.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(17,24,39,.08);
}

html[data-theme="dark"] .site-header{
  background: rgba(11,13,18,.86);
  border-bottom: 1px solid rgba(255,255,255,.10);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
}

.brand{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.brand strong{font-size:14px; letter-spacing:.2px}
.brand span{font-size:12px; color:var(--muted)}

/* Desktop nav */
.navlinks{
  display:flex;
  align-items:center;
  gap:18px;
  font-size:14px;
  color:var(--muted);
}

.navlinks a{
  padding:8px 10px;
  border-radius:12px;
  position: relative;
}

.navlinks a:hover{
  background: rgba(17,24,39,.04);
  color: var(--text);
}

html[data-theme="dark"] .navlinks a:hover{
  background: rgba(255,255,255,.06);
}

/* Push desktop links to the right (before actions) */
.navlinks-desktop{
  margin-left:auto;
  margin-right:16px;
}

/* Header actions */
.nav-actions{
  display:inline-flex;
  align-items:center;
  gap:10px;
}

/* =======================
   Theme switch (no label)
======================= */
.theme-switch{
  width:56px;
  height:40px;
  border-radius:999px;
  border:1px solid var(--border);
  background:var(--card);
  cursor:pointer;

  display:inline-flex;
  align-items:center;
  justify-content:center;

  box-shadow: 0 1px 0 rgba(16,24,40,.04);
  transition: transform .18s ease, box-shadow .18s ease, border-color .22s ease, background-color .22s ease;
}

.theme-switch:hover{
  transform: translateY(-1px);
  box-shadow: var(--shadow-base);
  border-color: var(--border2);
}
.theme-switch:active{ transform: translateY(0); }
.theme-switch:focus-visible{
  outline:none;
  box-shadow: 0 0 0 4px rgba(43,91,234,.20), var(--shadow-base);
}

.theme-switch .switch-track{
  width:48px;
  height:24px;
  border-radius:999px;
  position:relative;

  background: rgba(17,24,39,.06);
  border: 1px solid rgba(17,24,39,.10);

  transition: background-color .22s ease, border-color .22s ease, box-shadow .22s ease;
}
html[data-theme="dark"] .theme-switch .switch-track{
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.16);
}

.theme-switch .switch-thumb{
  width:20px;
  height:20px;
  border-radius:999px;

  position:absolute;
  left:2px;
  top:50%;

  background: var(--bg);
  border: 1px solid var(--border);

  transform: translate3d(0,-50%,0);
  box-shadow: 0 6px 14px rgba(0,0,0,.12);

  transition:
    transform .28s cubic-bezier(.2,.85,.2,1.15),
    background-color .22s ease,
    border-color .22s ease,
    box-shadow .22s ease;
}
html[data-theme="dark"] .theme-switch .switch-thumb{
  transform: translate3d(24px,-50%,0);
  box-shadow: 0 10px 22px rgba(0,0,0,.35);
}

.theme-switch:hover .switch-track{
  box-shadow: inset 0 0 0 999px rgba(43,91,234,.04);
}
html[data-theme="dark"] .theme-switch:hover .switch-track{
  box-shadow: inset 0 0 0 999px rgba(255,255,255,.05);
}

/* =======================
   Hamburger button + X animation
======================= */
.menu-toggle{
  width:40px;
  height:40px;
  border-radius:999px;
  border:1px solid var(--border);
  background:var(--card);
  color:var(--text);
  cursor:pointer;

  display:grid;
  place-items:center;

  transition: transform .18s ease, box-shadow .18s ease, border-color .22s ease, background-color .22s ease;
}
.menu-toggle:hover{
  transform: translateY(-1px);
  box-shadow: var(--shadow-base);
  border-color: var(--border2);
}
.menu-toggle:active{ transform: translateY(0); }

.menu-toggle .burger{
  width:18px;
  height:2px;
  background: var(--text);
  border-radius:999px;
  position:relative;
  display:inline-block;

  transition: background-color .18s ease;
}
.menu-toggle .burger::before,
.menu-toggle .burger::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background: var(--text);
  border-radius:999px;

  transition: transform .18s ease, top .18s ease, opacity .18s ease;
}
.menu-toggle .burger::before{ top:-6px; }
.menu-toggle .burger::after{ top: 6px; }

/* Open state */
.menu-toggle.is-open .burger{ background-color: transparent; }
.menu-toggle.is-open .burger::before{ top:0; transform: rotate(45deg); }
.menu-toggle.is-open .burger::after{  top:0; transform: rotate(-45deg); }

/* =======================
   Mobile menu (panel + animation)
======================= */
.mobile-menu{
  margin: 10px 0 14px;
  padding: 12px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow-base);

  transform-origin: top;
  transform: translateY(-6px);
  opacity: 0;
  pointer-events: none;
  max-height: 0;
  overflow: hidden;

  transition: opacity .18s ease, transform .18s ease, max-height .24s ease;
}

.mobile-menu.is-open{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  max-height: 420px;
}

.mobile-links{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.mobile-link{
  padding: 12px 12px;
  border-radius: 14px;
  color: var(--text);
  font-size: 15px;
}
.mobile-link:hover{ background: rgba(17,24,39,.04); }
html[data-theme="dark"] .mobile-link:hover{ background: rgba(255,255,255,.06); }

/* Responsive header behavior */
.menu-toggle{ display:none; } /* desktop default */
@media (max-width: 820px){
  .navlinks-desktop{ display:none; }
  .menu-toggle{ display:grid; }
  .brand span{ display:none; } /* optional */
}

/* =======================
   Main layout
======================= */
main{padding: var(--space-6) 0 var(--space-8)}
.section{padding: var(--space-7) 0}

.section-title{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:20px;
  margin-bottom: var(--space-4);
}
.section-title h2{
  margin:0;
  font-size:30px;
  letter-spacing:-.3px;
}
.section-title p{
  margin:0;
  color:var(--muted);
  font-size:15px;
}

/* Hero */
.hero{ padding: var(--space-7) 0 var(--space-6); }
.hero-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: var(--space-5);
  align-items:start;
}

h1{
  margin:0 0 10px;
  font-size:48px;
  line-height:1.15;
  letter-spacing:-.7px;
  font-weight:700;
}

.subtitle{
  margin:0 0 var(--space-4);
  font-size:18px;
  color:var(--muted);
  max-width:68ch;
}

.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin: 0 0 var(--space-5);
}

/* =======================
   Pills (hero meta)
======================= */
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;

  padding: 8px 12px;
  border-radius: 999px;

  background: rgb(255, 255, 255);


  color: rgb(17 24 39);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: .1px;

  box-shadow: 0 1px 0 rgba(16,24,40,.04);
  backdrop-filter: blur(6px);

  user-select: none;
  white-space: nowrap;
}

/* Dark theme */
html[data-theme="dark"] .pill{
  background: rgba(34, 39, 51, 0.72);
  border-color: rgba(255,255,255,.14);
  color: rgba(249,250,251,.80);
  box-shadow: 0 1px 0 rgba(0,0,0,.40);
}

/* Optional: clickable pill */
.pill.is-link{
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .22s ease, background-color .22s ease;
}

.pill.is-link:hover{
  transform: translateY(-1px);
  border-color: rgba(43,91,234,.20);
  box-shadow: var(--shadow-base);
}

html[data-theme="dark"] .pill.is-link:hover{
  border-color: rgba(255,255,255,.20);
  box-shadow: var(--shadow-base);
}

/* Optional: pill with dot (status) */
.pill .dot{
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(17,24,39,.55);
}

html[data-theme="dark"] .pill .dot{
  background: rgba(249,250,251,.55);
}


/* Buttons */
.actions{display:flex; gap:12px; flex-wrap:wrap}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 16px;
  border-radius:14px;
  border:1px solid var(--border2);
  background: var(--card);
  font-size:15px;
  color: var(--text);
  cursor:pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}

.btn:not(.primary):hover{
  transform: translateY(-1px);
  box-shadow: var(--shadow-base);
  background: rgba(17,24,39,.04);
}
html[data-theme="dark"] .btn:not(.primary):hover{
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.18);
}

.btn.primary{
  background: var(--accent);
  color: var(--bg);
  border-color: transparent;
}
.btn.primary:hover{
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

/* Cards */
.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-base);
}

.card-pad{padding: var(--space-4)}
.small{font-size:15px; color:var(--muted)}
.lead{font-size:18px; color:var(--muted); margin:0}

.grid-2{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

/* Media blocks */
.media{
  border-radius: var(--radius);
  overflow:hidden;
  border: 1px solid rgba(17,24,39,.10);
  background:#fff;
  box-shadow: 0 1px 0 rgba(16,24,40,.04);
}
.media img{ width:100%; height:auto; display:block; }
.media svg{ display:block; width:100%; height:auto; }

/* Case cards on main */
.case-card{
  padding:16px;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  will-change: transform;
}

/* =======================
   Case card hover → image reveal
======================= */
.case-card:hover .case-thumb img{
  filter: 
    grayscale(0%)
    brightness(1)
    contrast(1);

  transform: scale(1.02);
}



/* =======================
   Case preview image — default state
======================= */
.case-thumb{
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.case-thumb img{
  display: block;
  width: 100%;
  height: auto;

  filter:
    grayscale(100%)
    brightness(0.78)
    contrast(1.05);

  transition:
    filter .35s ease,
    transform .35s ease;
}

/* Hover */
.case-card:hover .case-thumb img{
  filter:
    grayscale(0%)
    brightness(1)
    contrast(1);

  transform: scale(1.02);
}



.case-title{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
}
.case-title h3{
  margin:0;
  font-size:20px;
  letter-spacing:-.2px;
}
.case-title .arrow{color: var(--muted2)}

.tags{display:flex; gap:8px; flex-wrap:wrap}
/* =======================
   Tags (pill) — light / dark
======================= */
.tag{
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 999px;

  background: rgba(17,24,39,.04);
  border: 1px solid rgba(17,24,39,.14);
  color: var(--muted);

  transition:
    background-color .18s ease,
    border-color .18s ease,
    color .18s ease;
}

/* Dark theme */
html[data-theme="dark"] .tag{
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.18);
  color: var(--muted);
}


/* Active nav link underline */
.navlinks a::after{
  content:"";
  position:absolute;
  left:10px;
  right:10px;
  bottom:-6px;
  height:2px;
  border-radius:2px;
  background: var(--accent);
  opacity:0;
  transform: scaleX(.6);
  transition: opacity .18s ease, transform .18s ease;
}
.navlinks a:hover::after{
  opacity:.35;
  transform: scaleX(1);
}
.navlinks a.active::after{
  opacity:1;
  transform: scaleX(1);
}

/* Case pages */
.case-hero{ padding: var(--space-6) 0 var(--space-5); }
.case-hero h1{font-size:40px}

.case-meta{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin:12px 0 0;
}
/* =======================
   KV (case meta) — high contrast in dark hero
======================= */
.kv{
  display: inline-flex;
  align-items: center;
  gap: 8px;

  padding: 10px 14px;
  border-radius: 999px;

  background: rgba(255,255,255,.90);   /* light theme default */
  border: 1px solid rgba(17,24,39,.12);

  backdrop-filter: blur(2px);
}

/* text */
.kv b{
  font-size: 13px;
  font-weight: 600;
  color: rgba(17,24,39,.55);
}

.kv span{
  font-size: 14px;
  font-weight: 500;
  color: rgba(17,24,39,.95);
}

/* =======================
   Dark theme
======================= */
html[data-theme="dark"] .kv{
  background: rgba(255,255,255,.12);   /* ↑ ключевое */
  border-color: rgba(255,255,255,.24);
}

html[data-theme="dark"] .kv b{
  color: rgba(249,250,251,.65);
}

html[data-theme="dark"] .kv span{
  color: #FFFFFF;
}


.hero-media{ margin-top: var(--space-4); }

.case-layout{
  display:grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-5);
  align-items:start;
}

.toc{
  position: sticky;
  top: 86px;
  padding: 18px;
  border-radius: var(--radius);
}
.toc h4{margin:0 0 10px; font-size:15px}
.toc a{
  display:block;
  padding: 9px 10px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 14px;
}
.toc a:hover{
  background: rgba(17,24,39,.04);
  color: var(--text);
}

.content section{padding: 0 0 var(--space-6)}
.content h2{
  margin:0 0 10px;
  font-size:24px;
  letter-spacing:-.2px;
}
.content p{
  margin: 0 0 14px;
  font-size:18px;
  color: var(--text);
}
.content ul{
  margin: 0 0 14px;
  padding-left: 18px;
  color: var(--text);
}
.content li{
  margin: 8px 0;
  font-size:18px;
}

.summary{ display:grid; gap:10px; }
.summary .row{ display:flex; gap:10px; align-items:flex-start; }
.summary .dot{
  width:8px; height:8px; border-radius:999px;
  background: var(--accent);
  margin-top: 8px;
  flex: 0 0 8px;
}

.callout{
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(17,24,39,.10);
  background: rgba(17,24,39,.03);
  color: var(--muted);
  font-size: 16px;
}

.case-nav{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding-top: var(--space-4);
  border-top: 1px solid rgba(17,24,39,.10);
}

/* Footer */
footer{
  padding: 48px 0;
  background: #0B0D12;
  color: #F9FAFB;
  border-top: 1px solid rgba(255,255,255,.10);
}
footer .small{ color: rgba(249,250,251,.72); }
footer a{ color:#F9FAFB; opacity:.82; }
footer a:hover{ opacity:1; text-decoration:underline; }
.footer-grid{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-grid .small{max-width:70ch}

/* Back to top button */
.back-to-top{
  position: fixed;
  right: 20px;
  bottom: 40px;
  z-index: 120;

  width: 44px;
  height: 44px;
  border-radius: 14px;

  border: 1px solid var(--border);

  display: grid;
  place-items: center;

  box-shadow: var(--shadow-base);
  cursor: pointer;

  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  transition:
    opacity .18s ease,
    transform .18s ease,
    box-shadow .18s ease,
    border-color .22s ease,
    background-color .22s ease,
    bottom .22s ease; /* важно для "подъёма" */
}
.back-to-top:hover{
  transform: translateY(6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border2);
}
.back-to-top:active{ transform: translateY(8px); }
.back-to-top:focus-visible{
  outline:none;
  box-shadow: 0 0 0 4px rgba(43,91,234,.20), var(--shadow-base);
}
.back-to-top.is-visible{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top svg{ width:18px; height:18px; display:block; }

/* Responsive */
@media (max-width: 980px){
  .hero-grid{grid-template-columns: 1fr}
  .case-layout{grid-template-columns: 1fr}
  .toc{position:relative; top:auto}
  h1{font-size:40px}
}
@media (max-width: 640px){
  body{font-size:17px}
  .grid-2, .grid-3{grid-template-columns: 1fr}
  h1{font-size:36px}
  .case-hero h1{font-size:34px}
}
/* =======================
   Back to top — theme contrast
======================= */

/* Light theme: dark button */
html[data-theme="light"] .back-to-top,
html:not([data-theme="dark"]) .back-to-top{
  background: #111827;          /* тёмная */
  color: #FFFFFF;               /* светлая иконка */
  border-color: rgba(17,24,39,.6);
}

/* Hover (light) */
html[data-theme="light"] .back-to-top:hover,
html:not([data-theme="dark"]) .back-to-top:hover{
  background: #000000;
}

/* Dark theme: light button */
html[data-theme="dark"] .back-to-top{
  background: #FFFFFF;          /* светлая */
  color: #0B0D12;               /* тёмная иконка */
  border-color: rgba(255,255,255,.6);
}

/* Hover (dark) */
html[data-theme="dark"] .back-to-top:hover{
  background: #E5E7EB;
}
/* =======================
   TOC — active item indicator
======================= */
.toc{
  position: sticky;
  top: 86px;
  padding: 18px;
  border-radius: var(--radius);
}

.toc h4{
  margin: 0 0 12px;
  font-size: 15px;
}

.toc a{
  position: relative;
  display: block;
  padding: 8px 12px 8px 20px; /* место под линию */
  border-radius: 10px;

  font-size: 14px;
  color: var(--muted);
  text-decoration: none;

  transition: color .16s ease, background-color .16s ease;
}

/* hover */
.toc a:hover{
  background: rgba(17,24,39,.04);
  color: var(--text);
}

html[data-theme="dark"] .toc a:hover{
  background: rgba(255,255,255,.06);
}

/* vertical line (hidden by default) */
.toc a::before{
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;

  background: var(--accent);
  opacity: 0;

  transition: opacity .16s ease;
}

/* ACTIVE */
.toc a.active{
  color: var(--text);
  background: rgba(43,91,234,.06);
}

html[data-theme="dark"] .toc a.active{
  background: rgba(255,255,255,.08);
}

.toc a.active::before{
  opacity: 1;
}
/* TOC: mobile fix — disable sticky */
@media (max-width: 980px){
  .toc{
    position: static !important; /* отключаем sticky */
    top: auto !important;
    z-index: auto !important;
    margin: 16px 0;
  }
}
/* =======================
   Components filter tabs + counters
======================= */

.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin: 14px 0 18px;
}

.filter-btn{
  appearance:none;
  border: 1px solid var(--border2);
  background: var(--card);
  color: var(--muted);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 14px;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease;
}

.filter-btn:hover{
  transform: translateY(-1px);
  box-shadow: var(--shadow-base);
  color: var(--text);
}

.filter-btn:focus-visible{
  outline: none;
  box-shadow: 0 0 0 4px rgba(43,91,234,.20), var(--shadow-base);
}

.filter-btn.is-active{
  background: var(--accent);
  border-color: transparent;
  color: var(--bg);
}

html[data-theme="dark"] .filter-btn.is-active{
  box-shadow: var(--shadow-base);
}

.filter-count{
  opacity: .72;
  margin-left: 6px;
  font-variant-numeric: tabular-nums;
}

.filter-btn.is-active .filter-count{
  opacity: .9;
}

/* =======================
   Component cards hover
======================= */

.component-item{
  transition:
    transform .22s cubic-bezier(.2,.8,.2,1),
    box-shadow .22s cubic-bezier(.2,.8,.2,1),
    border-color .22s ease;
  will-change: transform;
  transform-origin: center;
}

.component-item:hover{
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-hover);
  border-color: rgba(43,91,234,.16);
}

/* Optional: subtle image pop (very light) */
.component-item img{
  transition: transform .28s ease, filter .28s ease;
  will-change: transform;
}

.component-item:hover img{
  transform: scale(1.02);
}

/* Make sure caption stays crisp */
.component-item .media-caption{
  transition: color .18s ease;
}

.component-item:hover .media-caption{
  color: var(--text);
}


/* empty state spacing */
.component-empty{
  margin-top: 14px;
}
/* Caption under component image */
.media{
  position: relative;
}

.media-caption{
  text-align: center;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--muted);
  background: var(--card);
}
html[data-theme="dark"] .media-caption{
  color: var(--muted);
}

/* =========================
   Image lightbox
========================= */

.zoomable{
  cursor: zoom-in;
}

.lightbox{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.82);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 40px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease;
}

.lightbox.is-open{
  opacity: 1;
  pointer-events: auto;
}

.lightbox img{
  max-width: 100%;
  max-height: 100%;
  border-radius: 16px;
  box-shadow: 0 40px 120px rgba(0,0,0,.6);
  transform: scale(.96);
  transition: transform .22s ease;
}

.lightbox.is-open img{
  transform: scale(1);
}

.lightbox-close{
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 28px;
  color: white;
  background: transparent;
  border: none;
  cursor: pointer;
}