/* =====================================================
   SOTEK STUDIO · 09
   ===================================================== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#fbfbfa; --ink:#121212; --mid:#6e6e6e; --soft:#a8a8a8; --line:#e6e6e3; --mist:#f2f2ef; --blue:#3f6bff;
  --pad:clamp(20px,3.6vw,56px); --ease:cubic-bezier(.22,1,.36,1);
  --f:'Inter Tight',-apple-system,'Helvetica Neue',sans-serif;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,video{display:block;max-width:100%}
::selection{background:var(--ink);color:#fff}
.wrap{padding-left:var(--pad);padding-right:var(--pad)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* type */
.k{font-size:11px;font-weight:500;letter-spacing:.05em;color:var(--soft);text-transform:uppercase}
.d1{font-size:clamp(46px,7.4vw,124px);font-weight:300;letter-spacing:-.055em;line-height:.93}
.d2{font-size:clamp(34px,4.6vw,76px);font-weight:300;letter-spacing:-.05em;line-height:.98}
.d3{font-size:clamp(24px,2.5vw,38px);font-weight:300;letter-spacing:-.035em;line-height:1.12}
.lead{font-size:clamp(18px,1.6vw,24px);font-weight:300;letter-spacing:-.02em;line-height:1.38;color:var(--mid);max-width:36ch}
.body{font-size:16px;line-height:1.65;color:#3c3c3c;max-width:60ch}

/* header */
.hd{position:fixed;inset:0 0 auto;z-index:60;display:flex;align-items:center;justify-content:space-between;padding:20px var(--pad);transition:background .4s,color .4s,padding .4s}
.hd-logo{font-size:15px;font-weight:500;letter-spacing:-.01em}
.hd-nav{display:flex;align-items:center;gap:clamp(18px,2.6vw,38px)}
.hd-link{font-size:14px;display:inline-flex;align-items:center;gap:6px;transition:opacity .3s}
.hd-link i{font-style:normal;font-weight:300;transition:transform .4s var(--ease)}
.hd-drop.open .hd-link i{transform:rotate(45deg)}
.hd-link:hover{opacity:.55}
.hd-link.on{text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px}
.hd.solid,.hd.mega-on{background:rgba(251,251,250,.9);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);padding-top:15px;padding-bottom:15px;color:var(--ink)}
body[data-tone=dark] .hd:not(.solid):not(.mega-on){color:#fff}
.hd-burger{display:none;font-size:14px}

/* mega menu */
.mega{position:fixed;left:0;right:0;top:100%;background:rgba(251,251,250,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-top:1px solid var(--line);border-bottom:1px solid var(--line);opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .35s var(--ease),transform .45s var(--ease),visibility .35s;color:var(--ink)}
.hd-drop.open .mega{opacity:1;visibility:visible;transform:none}
.mega-in{display:grid;grid-template-columns:repeat(3,1fr) .9fr;gap:clamp(20px,3vw,50px);padding:34px var(--pad) 40px}
.mg-h{font-size:22px;font-weight:300;letter-spacing:-.03em;display:block}
.mg-col p{font-size:13px;color:var(--mid);margin:6px 0 18px;max-width:28ch}
.mg-col ul{list-style:none}
.mg-col li a{display:block;font-size:14px;padding:6px 0;color:#333;transition:color .2s,transform .3s var(--ease)}
.mg-col li a:hover{color:var(--blue);transform:translateX(4px)}
.mg-help{background:var(--mist);border-radius:10px;padding:22px}
.mg-cta{display:inline-block;margin-top:4px;font-size:14px;border-bottom:1px solid currentColor;padding-bottom:2px}

/* mobile menu */
.mob{position:fixed;inset:0;z-index:55;background:var(--bg);overflow-y:auto;padding:84px var(--pad) 40px;opacity:0;visibility:hidden;transition:opacity .35s,visibility .35s}
body.mob-on{overflow:hidden}
body.mob-on .mob{opacity:1;visibility:visible}
body.mob-on .hd{color:var(--ink)!important;background:var(--bg)}
.mob-svc summary,.mob-big{display:block;font-size:40px;font-weight:300;letter-spacing:-.045em;line-height:1.2;padding:6px 0;list-style:none;cursor:pointer}
.mob-svc summary::-webkit-details-marker{display:none}
.mob-svc summary::after{content:' +';color:var(--soft)}
.mob-svc[open] summary::after{content:' −'}
.mob-p{padding:12px 0 14px;border-bottom:1px solid var(--line)}
.mob-p a{display:block;font-size:16px;padding:5px 0;color:#444}
.mob-p .mob-ph{font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--soft)}
.mob-guide{display:block;margin:16px 0 20px;font-size:15px;color:var(--blue)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;font-size:14px;padding:14px 24px;border-radius:100px;border:1px solid var(--ink);transition:background .3s,color .3s}
.btn:hover{background:var(--ink);color:#fff}
.btn.dk{background:var(--ink);color:#fff}
.btn.dk:hover{background:#333}
.tl{font-size:14px;border-bottom:1px solid currentColor;padding-bottom:2px;transition:opacity .3s}
.tl:hover{opacity:.55}

/* sections */
.sec{padding-top:clamp(100px,16vh,190px)}
.head{display:grid;grid-template-columns:1fr 2fr;gap:30px;align-items:end;margin-bottom:clamp(40px,7vh,80px)}
.page-top{padding:clamp(140px,22vh,230px) var(--pad) 0}
.page-top .lead{margin-top:clamp(22px,4vh,36px)}
.crumbs{font-size:12px;color:var(--soft);margin-bottom:26px;display:flex;gap:8px;flex-wrap:wrap}
.crumbs a:hover{color:var(--ink)}

/* pillars (home + services) */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.pillar{padding:32px clamp(18px,2vw,30px) 36px 0;border-right:1px solid var(--line)}
.pillar+.pillar{padding-left:clamp(18px,2vw,30px)}
.pillar:last-child{border-right:0}
.pillar .n{font-size:12px;color:var(--soft)}
.pillar h3{font-size:clamp(30px,3vw,46px);font-weight:300;letter-spacing:-.045em;margin:26px 0 10px}
.pillar>p{font-size:14.5px;color:var(--mid);margin-bottom:22px;max-width:30ch}
.pillar ul{list-style:none}
.pillar li a{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:15px;transition:padding .4s var(--ease),color .2s}
.pillar li a::after{content:'→';color:var(--soft);transition:color .2s}
.pillar li a:hover{padding-left:8px;color:var(--blue)}
.pillar li a:hover::after{color:var(--blue)}

/* guide */
.guide{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gq{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;display:flex;flex-direction:column;gap:18px;transition:border-color .3s,transform .5s var(--ease)}
.gq:hover{border-color:#cfcfcb;transform:translateY(-3px)}
.gq h4{font-size:20px;font-weight:300;letter-spacing:-.025em;line-height:1.2}
.gq .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.gq .tags a{font-size:12.5px;padding:6px 11px;border-radius:100px;background:var(--mist);transition:background .25s,color .25s}
.gq .tags a:hover{background:var(--ink);color:#fff}

/* service page */
.sv-facts{display:grid;grid-template-columns:1fr 2fr;gap:30px;padding:clamp(80px,12vh,140px) var(--pad) 0}
.sv-when{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:0 30px}
.sv-when li{padding:16px 0;border-top:1px solid var(--line);font-size:16px;display:flex;gap:14px}
.sv-when li::before{content:'';flex:none;width:7px;height:7px;border-radius:50%;background:var(--blue);margin-top:.55em}
.sv-get{list-style:none;counter-reset:g}
.sv-get li{counter-increment:g;display:grid;grid-template-columns:44px 1fr;padding:16px 0;border-top:1px solid var(--line);font-size:17px;font-weight:300;letter-spacing:-.01em}
.sv-get li::before{content:counter(g,decimal-leading-zero);font-size:12px;color:var(--soft);padding-top:.3em}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(14px,1.6vw,22px)}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 22px 28px}
.step .n{font-size:12px;color:var(--soft)}
.step h4{font-size:22px;font-weight:300;letter-spacing:-.03em;margin:30px 0 8px}
.step p{font-size:14px;color:var(--mid);line-height:1.55}
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;padding:22px 0;font-size:clamp(17px,1.4vw,20px);font-weight:300;letter-spacing:-.015em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';font-size:22px;color:var(--soft);transition:transform .4s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 24px;color:var(--mid);max-width:62ch;line-height:1.6}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.rel{border:1px solid var(--line);border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:10px;min-height:170px;transition:border-color .3s,background .3s}
.rel:hover{background:#fff;border-color:#cfcfcb}
.rel .k{color:var(--soft)}
.rel h4{font-size:22px;font-weight:300;letter-spacing:-.03em}
.rel p{font-size:14px;color:var(--mid);margin-top:auto}
.sv-nav{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:clamp(90px,14vh,160px);padding:30px var(--pad)}
.sv-nav a{display:flex;flex-direction:column;gap:6px;max-width:45%}
.sv-nav a:last-child{text-align:right;margin-left:auto}
.sv-nav b{font-size:clamp(22px,2.4vw,36px);font-weight:300;letter-spacing:-.035em}
.cta-band{margin:clamp(90px,14vh,160px) var(--pad) 0;background:var(--ink);color:#fff;border-radius:16px;padding:clamp(36px,6vw,80px);display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.cta-band p{color:rgba(255,255,255,.6);margin-top:14px;max-width:40ch}
.cta-band .btn{border-color:#fff}
.cta-band .btn:hover{background:#fff;color:var(--ink)}

/* service: header, visual, approach */
.sv-sub{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:end;margin-top:clamp(22px,4vh,36px)}
.sv-sub .lead{margin:0}
.sv-fits{justify-self:end;max-width:420px}
.sv-fits div{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.sv-fits div span{font-size:13px;padding:7px 12px;border:1px solid var(--line);border-radius:100px;background:#fff}
.sv-media{display:grid;gap:clamp(8px,1vw,14px);padding:clamp(50px,8vh,90px) var(--pad) 0}
.sv-media.photos.n2{grid-template-columns:1fr 1fr}
.sv-media.photos.n3{grid-template-columns:repeat(3,1fr)}
.sv-media.photos.n3 figure{aspect-ratio:4/5}
.sv-media.photos figure{aspect-ratio:3/2}
.sv-media.photos.n2 figure{aspect-ratio:4/5}
.sv-media.reels{grid-template-columns:repeat(var(--c,3),minmax(0,340px));justify-content:start}
.sv-media.reels.n2{--c:2}
.sv-media.reels figure{aspect-ratio:9/16}
.sv-media figure{position:relative;border-radius:10px;overflow:hidden;background:#111;margin:0}
.sv-media img,.sv-media video{width:100%;height:100%;object-fit:cover;display:block}
.sv-media figcaption{position:absolute;left:12px;bottom:10px;font-size:12px;color:#fff;text-shadow:0 1px 10px rgba(0,0,0,.45)}
.sv-idea{position:relative;overflow:hidden;margin:clamp(50px,8vh,90px) var(--pad) 0;border-radius:16px;background:#020a2e;color:#fff;min-height:min(62svh,560px);display:flex;flex-direction:column;justify-content:space-between;padding:clamp(28px,4vw,60px)}
.sv-idea::before{content:'';position:absolute;inset:-30%;background:linear-gradient(115deg,transparent 30%,rgba(60,120,255,.5) 45%,rgba(140,190,255,.3) 50%,rgba(60,120,255,.35) 55%,transparent 70%);filter:blur(40px);animation:svStreak 10s ease-in-out infinite alternate}
.sv-idea .glow{position:absolute;width:60vw;height:60vw;right:-20vw;bottom:-35vw;border-radius:50%;background:radial-gradient(circle,rgba(40,90,255,.45),transparent 65%);filter:blur(30px)}
.sv-idea p{position:relative;font-size:clamp(28px,3.8vw,60px);font-weight:300;letter-spacing:-.04em;line-height:1.1;max-width:20ch}
.sv-idea span{position:relative;font-size:12px;color:rgba(255,255,255,.55);align-self:flex-end;margin-top:40px}
@keyframes svStreak{from{transform:translate(-12%,-6%)}to{transform:translate(10%,6%) rotate(5deg)}}
.sv-appr{margin-top:clamp(36px,6vh,56px);padding-top:20px;border-top:1px solid var(--line);display:grid;grid-template-columns:160px 1fr;gap:20px}
@media(max-width:900px){
  .sv-sub{grid-template-columns:1fr}
  .sv-fits{justify-self:start}
  .sv-media.photos.n3{grid-template-columns:1fr 1fr}
  .sv-media.photos.n3 figure:first-child{grid-column:1/-1;aspect-ratio:3/2}
  .sv-media.reels{grid-template-columns:repeat(var(--c,3),70vw);overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
  .sv-media.reels::-webkit-scrollbar{display:none}
  .sv-media.reels figure{scroll-snap-align:start}
  .sv-idea{min-height:440px}
  .sv-appr{grid-template-columns:1fr;gap:10px}
}
@media(prefers-reduced-motion:reduce){.sv-idea::before{animation:none}}

/* work */
.wk{list-style:none;border-top:1px solid var(--line)}
.wk li{border-bottom:1px solid var(--line)}
.wk-row{display:grid;grid-template-columns:2.2fr 1.5fr 1.3fr .4fr;gap:24px;align-items:baseline;padding:26px 0;width:100%;text-align:left}
.wk-row .t{font-size:clamp(22px,2.4vw,38px);font-weight:300;letter-spacing:-.035em;line-height:1.05}
.wk-row span{color:var(--mid);font-size:14px}
.wk-row span:last-child{text-align:right}
.wk.hovering li:not(.cur) .wk-row{opacity:.25}
.wk-row{transition:opacity .4s var(--ease)}
.peek{position:fixed;left:0;top:0;z-index:40;pointer-events:none}
.peek .pk{position:absolute;left:28px;top:0;transform:translateY(-50%) scale(.94);opacity:0;transition:opacity .3s,transform .5s var(--ease);border-radius:8px;overflow:hidden;background:#111}
.peek .pk.v{width:min(16vw,240px);aspect-ratio:9/16}
.peek .pk.p{width:min(30vw,440px);aspect-ratio:3/2}
.peek .pk.on{opacity:1;transform:translateY(-50%) scale(1)}
.peek img,.peek video,.wk-media img,.wk-media video{width:100%;height:100%;object-fit:cover;display:block}
.wk-open{display:grid;grid-template-rows:0fr;transition:grid-template-rows .6s var(--ease)}
.wk-clip{overflow:hidden;min-height:0}
.wk li.open .wk-open{grid-template-rows:1fr}
.wk-media{border-radius:8px;overflow:hidden;background:#111;margin-bottom:22px}
.wk-media.v{width:62%;aspect-ratio:9/16}
.wk-media.p{aspect-ratio:3/2}
@media(hover:hover) and (pointer:fine){.wk-open{display:none}}

/* studio / contact */
.two{display:grid;grid-template-columns:1fr 2fr;gap:30px}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;border-top:1px solid var(--line);padding-top:22px}
.facts b{display:block;font-size:clamp(34px,3.4vw,54px);font-weight:200;letter-spacing:-.05em;line-height:1}
.facts span{font-size:13px;color:var(--mid)}
.vals{display:grid;grid-template-columns:1fr 1fr;gap:0 30px}
.vals div{border-top:1px solid var(--line);padding:22px 0}
.vals h4{font-size:22px;font-weight:300;letter-spacing:-.03em;margin-bottom:8px}
.vals p{color:var(--mid);font-size:15px;max-width:44ch}
.ways{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.way{border:1px solid var(--line);border-radius:12px;padding:26px;display:flex;flex-direction:column;gap:10px;min-height:200px;transition:background .3s}
.way:hover{background:#fff}
.way h4{font-size:24px;font-weight:300;letter-spacing:-.03em}
.way p{font-size:14px;color:var(--mid)}
.way .tl{margin-top:auto;align-self:flex-start}

/* footer */
.ft{margin-top:clamp(120px,18vh,200px);border-top:1px solid var(--line);padding:clamp(60px,10vh,100px) var(--pad) 26px}
.ft-top{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap;margin-bottom:clamp(50px,8vh,90px)}
.ft-big{font-size:clamp(34px,4.6vw,76px);font-weight:300;letter-spacing:-.05em;line-height:.98;max-width:14ch}
.ft-cta{font-size:16px;border-bottom:1px solid currentColor;padding-bottom:3px}
.ft-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.ft-grid a{display:block;font-size:13.5px;color:var(--mid);padding:4px 0;transition:color .2s}
.ft-grid a:hover{color:var(--ink)}
.ft-h{display:block;font-size:12px;color:var(--ink);font-weight:500;margin-bottom:10px}
.ft-bot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:60px;font-size:12px;color:var(--soft)}

/* reveal */
.rv{opacity:0;transform:translateY(24px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.rv.in{opacity:1;transform:none}

@media(max-width:900px){
  .hd-nav{display:none}
  .hd-burger{display:block}
  .head,.two,.sv-facts{grid-template-columns:1fr;gap:16px}
  .pillars{grid-template-columns:1fr}
  .pillar,.pillar+.pillar{padding:28px 0;border-right:0;border-bottom:1px solid var(--line)}
  .pillar h3{margin-top:14px}
  .guide,.related,.ways{grid-template-columns:1fr}
  .sv-when{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .facts{grid-template-columns:1fr 1fr;row-gap:28px}
  .vals{grid-template-columns:1fr}
  .wk-row{grid-template-columns:1fr auto;gap:6px 14px;padding:20px 0}
  .wk-row .t{grid-column:1/-1;font-size:24px}
  .wk-row span:nth-child(3){display:none}
  .ft-grid{grid-template-columns:1fr 1fr;row-gap:30px}
  .sv-nav a{max-width:48%}
}
@media(max-width:480px){.steps{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}*{scroll-behavior:auto}}