/* =========================================================
   Artem Blyzniuk — Creative Director
   Dark editorial redesign. Static HTML/CSS/vanilla JS.
   Design principles adapted from reference audit:
   near-black surface, muted-first text, image-as-card,
   one accent, single reveal primitive, micro-hovers.
   ========================================================= */

/* ---------- Tokens ---------- */
:root{
  --bg:        #0b0b0c;
  --bg-soft:   #101012;
  --card:      #151517;
  --border:    rgba(255,255,255,.08);
  --border-2:  rgba(255,255,255,.16);
  --text:      #f2f1ee;
  --text-2:    #b4b2ac;
  --text-3:    #85837d;
  --accent:    #ff5a1f;
  --accent-soft: #ff7a45;
  --r-md:      18px;
  --r-sm:      12px;
  --maxw:      1240px;
  --font-d:'Unbounded',system-ui,sans-serif;
  --font-b:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-m:'IBM Plex Mono',ui-monospace,monospace;
  --ease: cubic-bezier(.22,1,.36,1);
}

/* ---------- Reset / base ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-b);
  background:var(--bg);
  color:var(--text);
  font-size:16px;line-height:1.6;letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:clip;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{list-style:none}
dl,dt,dd{margin:0}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

html{scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.2);border-radius:999px;border:3px solid transparent;background-clip:padding-box}

.skip{
  position:fixed;top:-48px;left:16px;z-index:200;
  background:var(--accent);color:#fff;padding:10px 18px;border-radius:8px;
  font-weight:600;transition:top .2s var(--ease);
}
.skip:focus{top:12px}

/* ---------- Layout primitives ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(20px,5vw,40px)}
.section{padding-block:clamp(56px,8vw,104px)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-m);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--text-3);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}
.eyebrow--c{justify-content:center}
.eyebrow--c::after{content:"";width:22px;height:1px;background:var(--accent)}

.section-head{margin-bottom:clamp(36px,5vw,64px);max-width:720px}
.section-head h2,.contact h2{
  font-family:var(--font-d);font-weight:600;
  font-size:clamp(24px,3.6vw,44px);line-height:1.12;letter-spacing:-.01em;
  margin:16px 0 14px;
}
h2 em,h1 em{font-style:normal;color:var(--accent)}
.lead{color:var(--text-3);font-size:clamp(15px,1.6vw,17.5px);max-width:640px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 24px;border-radius:999px;font-weight:600;font-size:15px;
  transition:transform .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-soft)}
.btn-line{border:1px solid var(--border-2);color:var(--text)}
.btn-line:hover{border-color:rgba(255,255,255,.34)}

/* ---------- Header ---------- */
.topbar{
  position:fixed;inset:14px 0 auto;z-index:100;
  display:flex;justify-content:center;padding-inline:16px;
  pointer-events:none;
}
.pill{
  pointer-events:auto;
  display:flex;align-items:center;gap:clamp(10px,2vw,22px);
  padding:8px 8px 8px 18px;border-radius:999px;
  border:1px solid transparent;
  transition:background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.topbar.is-scrolled .pill{
  background:rgba(16,16,18,.72);
  border-color:var(--border);
  backdrop-filter:blur(18px) saturate(1.3);
  -webkit-backdrop-filter:blur(18px) saturate(1.3);
  box-shadow:0 18px 40px -20px rgba(0,0,0,.6);
}
.logo{font-family:var(--font-d);font-weight:700;font-size:17px;letter-spacing:.02em}
.logo span{color:var(--accent)}
.pill-links{display:flex;gap:clamp(8px,1.6vw,18px)}
.pill-links a{
  font-size:13.5px;color:var(--text-2);padding:8px 4px;
  transition:color .25s var(--ease);
}
.pill-links a:hover{color:var(--text)}
.lang{display:flex;border:1px solid var(--border-2);border-radius:999px;overflow:hidden}
.lang button{
  font-family:var(--font-m);font-size:11.5px;padding:7px 12px;color:var(--text-3);
  transition:color .25s,background .25s;
}
.lang button.on{background:var(--text);color:var(--bg);font-weight:500}
.pill-cta{
  background:var(--accent);color:#fff;font-weight:600;font-size:13.5px;
  padding:10px 18px;border-radius:999px;transition:background .3s var(--ease);
}
.pill-cta:hover{background:var(--accent-soft)}

/* ---------- Hero ---------- */
.hero{position:relative;padding-top:clamp(140px,18vw,220px);padding-bottom:clamp(40px,6vw,72px);overflow:hidden}
.hero-glow{
  position:absolute;inset:-30% -10% auto -10%;height:70vh;pointer-events:none;
  background:radial-gradient(55% 70% at 68% 18%,rgba(255,90,31,.10),transparent 62%);
}
.hero h1{
  font-family:var(--font-d);font-weight:600;
  font-size:clamp(30px,5.6vw,68px);line-height:1.1;letter-spacing:-.01em;
  max-width:20ch;margin-top:22px;
}
.hero-sub{margin-top:clamp(22px,3vw,30px);max-width:56ch;color:var(--text-3);font-size:clamp(15.5px,1.7vw,18px)}
.hero-cta{margin-top:clamp(26px,4vw,38px);display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.avail{display:inline-flex;align-items:center;gap:9px;color:var(--text-3);font-size:13.5px;padding-left:6px}
.dot{width:8px;height:8px;border-radius:50%;background:#3ddc84;box-shadow:0 0 0 0 rgba(61,220,132,.5);animation:pulse 2.4s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(61,220,132,.45)}
  70%{box-shadow:0 0 0 9px rgba(61,220,132,0)}
  100%{box-shadow:0 0 0 0 rgba(61,220,132,0)}
}
.hero-stats{
  margin-top:clamp(44px,6vw,72px);
  display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,3vw,28px);
  border-top:1px solid var(--border);padding-top:clamp(22px,3vw,32px);
}
.hero-stats dt{font-family:var(--font-d);font-weight:600;font-size:clamp(20px,2.6vw,30px);letter-spacing:-.01em}
.hero-stats dd{margin-top:8px;color:var(--text-3);font-size:13px;line-height:1.45}

/* ---------- Brands marquee ---------- */
.brands{padding-block:clamp(28px,4vw,44px);border-block:1px solid var(--border);overflow:hidden}
.brands-lbl{font-family:var(--font-m);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--text-3);margin-bottom:18px}
.marquee{overflow:hidden;white-space:nowrap;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);}
.marquee-in{display:inline-flex;align-items:center;animation:marq 46s linear infinite;will-change:transform}
.marquee:hover .marquee-in{animation-play-state:paused}
.marquee-in span{
  font-family:var(--font-d);font-weight:500;font-size:clamp(15px,1.8vw,20px);
  color:var(--text-3);padding-right:18px;
}
.marquee-in i{font-style:normal;color:var(--accent);opacity:.6;padding-right:18px;font-size:12px}
@keyframes marq{to{transform:translateX(-50%)}}

/* ---------- Cases ---------- */
.case-list{display:flex;flex-direction:column;gap:clamp(56px,8vw,96px)}

.case-media{position:relative;border-radius:var(--r-md);overflow:hidden;background:var(--card)}
.case-media button{display:block;width:100%;padding:0;cursor:zoom-in}
.case-media img{width:100%;transition:transform .6s var(--ease)}
.case-media:hover img{transform:scale(1.02)}

/* image mask reveal (plays with .reveal -> .in) */
.rv-img{clip-path:inset(6% 3% 6% 3% round var(--r-md));transition:clip-path 1s var(--ease)}
.rv-img img{transform:scale(1.06)}
.reveal.in .rv-img,.rv-img.reveal.in{clip-path:inset(0 0 0 0 round var(--r-md))}
.reveal.in .rv-img img,.rv-img.reveal.in img{transform:scale(1)}
.reveal.in .case-media:hover img{transform:scale(1.02)}

.case--feature{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:clamp(28px,4.5vw,64px);align-items:center;
}
.case--flip .case-media{order:2}
.case--flip .case-info{order:1}

.case-meta{display:flex;align-items:baseline;gap:16px;margin-bottom:16px}
.case-num{font-family:var(--font-m);font-size:13px;color:var(--accent)}
.case-tags{font-family:var(--font-m);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.case h3{
  font-family:var(--font-d);font-weight:500;
  font-size:clamp(19px,2.2vw,27px);line-height:1.22;letter-spacing:-.005em;
}
.case-client{margin-top:10px;color:var(--text-2);font-size:14px}
.case-sum{margin-top:14px;color:var(--text-3);font-size:15px;line-height:1.62}
.case-contrib{margin-top:18px;font-size:13.5px;color:var(--text-2);line-height:1.6}
.case-contrib .lbl{
  display:block;font-family:var(--font-m);font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--accent);margin-bottom:6px;
}
.case-results{display:flex;flex-wrap:wrap;gap:clamp(18px,2.5vw,34px);margin-top:22px;border-top:1px solid var(--border);padding-top:18px}
.case-results dt{font-family:var(--font-d);font-weight:600;font-size:clamp(17px,1.9vw,22px)}
.case-results dd{margin-top:5px;color:var(--text-3);font-size:12.5px;max-width:170px;line-height:1.45}

.case-results-line{margin-top:22px;border-top:1px solid var(--border);padding-top:18px;color:var(--text-3);font-size:14px;line-height:1.7}
.case-results-line b{font-family:var(--font-d);font-weight:600;color:var(--text);font-size:15.5px}

.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(32px,4.5vw,56px);row-gap:clamp(48px,6vw,72px)}
.case--card .case-info{margin-top:22px}
.case--card h3{font-size:clamp(18px,1.8vw,22px)}

/* ---------- KPI index ---------- */
.kpi-list{border-top:1px solid var(--border)}
.kpi-row{
  display:grid;grid-template-columns:200px minmax(0,1fr) 260px;
  gap:clamp(16px,3vw,40px);align-items:center;
  padding:clamp(16px,2.4vw,24px) 8px;border-bottom:1px solid var(--border);
  transition:background .3s var(--ease);
}
.kpi-row:hover{background:var(--bg-soft)}
.kpi-brand{font-weight:600;font-size:15.5px}
.kpi-what{color:var(--text-3);font-size:14px;line-height:1.5}
.kpi-num{text-align:right}
.kpi-num b{display:block;font-family:var(--font-d);font-weight:600;font-size:clamp(19px,2vw,24px);letter-spacing:-.01em}
.kpi-num span{display:block;margin-top:4px;color:var(--text-3);font-size:12px}

/* ---------- Budgets / Motivation subblocks ---------- */
.budgets,.motivation{margin-top:clamp(32px,4vw,48px);padding-top:clamp(20px,3vw,28px);border-top:1px solid var(--border)}
.budgets-desc{margin-top:14px;color:var(--text-3);font-size:14.5px;max-width:520px}
.budgets-num{margin-top:10px;font-family:var(--font-d);font-weight:600;font-size:clamp(24px,3vw,34px);letter-spacing:-.01em}
.motivation-tags{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.6;max-width:720px}

.prod{margin-top:clamp(56px,8vw,88px)}
.prod-h{font-family:var(--font-d);font-weight:600;font-size:clamp(20px,2.6vw,30px);line-height:1.2;margin:14px 0 clamp(24px,3.5vw,40px)}
.prod-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(14px,2vw,24px)}
.prod-video{position:relative;width:100%;aspect-ratio:9/16;border-radius:var(--r-sm);overflow:hidden;background:var(--card)}
.prod-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* ---------- Experience ---------- */
.xp-list{display:flex;flex-direction:column;gap:clamp(36px,5vw,54px);max-width:940px}
.xp{display:grid;grid-template-columns:180px minmax(0,1fr);gap:clamp(20px,4vw,56px)}
.xp-period{font-family:var(--font-m);font-size:13px;color:var(--text-3);padding-top:6px;letter-spacing:.02em}
.xp-body h3{font-family:var(--font-d);font-weight:500;font-size:clamp(17px,1.9vw,22px);letter-spacing:-.005em}
.xp-co{margin-top:6px;color:var(--text-2);font-size:14px}
.xp-body ul{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.xp-body li{
  color:var(--text-3);font-size:14.5px;line-height:1.55;
  padding-left:18px;position:relative;
}
.xp-body li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:1px;background:var(--accent)}

/* ---------- Expertise ---------- */
.sk-list{border-top:1px solid var(--border);max-width:1020px}
.sk{
  display:grid;grid-template-columns:64px 300px minmax(0,1fr);
  gap:clamp(14px,3vw,36px);align-items:baseline;
  padding:clamp(18px,2.6vw,26px) 8px;border-bottom:1px solid var(--border);
  transition:background .3s var(--ease);
}
.sk:hover{background:var(--bg-soft)}
.sk-num{font-family:var(--font-m);font-size:13px;color:var(--accent)}
.sk h3{font-family:var(--font-d);font-weight:500;font-size:clamp(15px,1.5vw,18px);line-height:1.3}
.sk p{color:var(--text-3);font-size:14px;line-height:1.55}

/* ---------- Contact ---------- */
.contact{padding-bottom:clamp(72px,10vw,128px)}
.contact-in{text-align:center;max-width:720px;margin-inline:auto}
.contact h2{font-size:clamp(28px,4.4vw,52px);margin:18px 0 16px}
.lead--c{margin-inline:auto}
.contact-links{margin-top:clamp(28px,4vw,40px);display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--border);padding-block:26px}
.footer-in{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-family:var(--font-m);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);
}

/* ---------- Lightbox ---------- */
.lb{
  position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;
  background:rgba(8,8,9,.94);opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
  padding:4vmin;
}
.lb.open{opacity:1;pointer-events:auto}
.lb img{max-width:94vw;max-height:90vh;width:auto;height:auto;border-radius:10px;box-shadow:0 40px 120px rgba(0,0,0,.6)}
.lb button{
  position:absolute;top:18px;right:18px;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--border-2);color:var(--text);font-size:16px;
  display:grid;place-items:center;transition:background .25s,border-color .25s;
}
.lb button:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
[data-delay="1"]{transition-delay:.08s}
[data-delay="2"]{transition-delay:.16s}
[data-delay="3"]{transition-delay:.24s}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .kpi-row{grid-template-columns:160px minmax(0,1fr) 220px}
  .sk{grid-template-columns:52px 240px minmax(0,1fr)}
}
@media (max-width:920px){
  .case--feature{grid-template-columns:1fr;gap:26px;align-items:start}
  .case--flip .case-media{order:0}
  .case--flip .case-info{order:1}
  .pill-links{display:none}
}
@media (max-width:760px){
  .case-grid{grid-template-columns:1fr;row-gap:52px}
  .kpi-row{grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"brand num" "what what";gap:10px 16px}
  .kpi-brand{grid-area:brand;align-self:center}
  .kpi-what{grid-area:what;margin-top:0}
  .kpi-num{grid-area:num}
  .sk{grid-template-columns:44px minmax(0,1fr)}
  .sk p{grid-column:2}
  .prod-strip{grid-template-columns:1fr}
  .xp{grid-template-columns:1fr;gap:10px}
  .xp-period{padding-top:0}
}
@media (max-width:640px){
  .hero-stats{grid-template-columns:repeat(2,1fr);row-gap:24px}
  .avail{width:100%;padding-left:2px}
  .footer-in{justify-content:center;text-align:center}
}
@media (max-width:420px){
  .pill{gap:8px;padding-left:14px}
  .pill-cta{padding:9px 13px;font-size:12.5px}
  .hero h1{font-size:clamp(26px,7.8vw,34px)}
  .btn{padding:12px 18px;font-size:14px}
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;transition-delay:0s!important}
  .reveal{opacity:1;transform:none}
  .rv-img{clip-path:none}
  .rv-img img{transform:none}
  .marquee-in{animation:none;transform:none}
  .dot{animation:none}
}