/* ============================================================
   MIZANEX — global stylesheet
   Чёрно-белая система. Структура повторяет будущие React-компоненты.
   ============================================================ */
:root{
  --black:#000000;
  --white:#ffffff;
  --paper:#0a0a0a;
  --line:rgba(255,255,255,0.14);
  --line-strong:rgba(255,255,255,0.42);
  --dim:rgba(255,255,255,0.56);
  --faint:rgba(255,255,255,0.32);
  --display:"Space Grotesk",sans-serif;   /* имя / заголовки — геометрия */
  --mono:"Azeret Mono","JetBrains Mono",monospace; /* инженерный/тех */
  --stencil:"Oswald",sans-serif;           /* широкий "MIZANEX" логотип */
  --ease:cubic-bezier(.16,1,.3,1);
  --ease-io:cubic-bezier(.65,0,.35,1);
  --maxw:1280px;
  --gutter:40px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--black);
  color:var(--white);
  font-family:var(--display);
  line-height:1.5;
  overflow-x:hidden;
  cursor:none;
}
@media(pointer:coarse){body{cursor:auto}}
::selection{background:var(--white);color:var(--black)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:none;border:none;background:none;color:inherit}

/* ---------- custom cursor ---------- */
.cursor{position:fixed;top:0;left:0;width:8px;height:8px;background:var(--white);border-radius:50%;pointer-events:none;z-index:9999;transform:translate(-50%,-50%);mix-blend-mode:difference;transition:width .25s var(--ease),height .25s var(--ease)}
.cursor-ring{position:fixed;top:0;left:0;width:40px;height:40px;border:1px solid var(--line-strong);border-radius:50%;pointer-events:none;z-index:9998;transform:translate(-50%,-50%);transition:width .3s var(--ease),height .3s var(--ease),border-color .3s var(--ease);mix-blend-mode:difference}
body.hovering .cursor{width:0;height:0}
body.hovering .cursor-ring{width:64px;height:64px;border-color:var(--white)}
@media(pointer:coarse){.cursor,.cursor-ring{display:none}}

/* ---------- grain / texture ---------- */
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.04;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}

/* ============================================================
   NAV
   ============================================================ */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;mix-blend-mode:difference}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:84px;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.logo{font-family:var(--stencil);font-weight:700;font-size:22px;letter-spacing:.22em;color:var(--white)}
.nav-menu{display:flex;gap:42px;align-items:center}
.nav-menu a{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;position:relative;padding:6px 0}
.nav-menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--white);transition:width .4s var(--ease)}
.nav-menu a:hover::after,.nav-menu a.active::after{width:100%}
.nav-menu a.active{opacity:1}
.burger{display:none;flex-direction:column;gap:5px;width:28px}
.burger span{height:1.5px;background:var(--white);transition:transform .4s var(--ease),opacity .3s}
.menu-open .burger span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.menu-open .burger span:nth-child(2){opacity:0}
.menu-open .burger span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* mobile overlay */
.mobile-nav{position:fixed;inset:0;z-index:90;background:var(--black);display:flex;flex-direction:column;justify-content:center;padding:0 var(--gutter);transform:translateY(-100%);transition:transform .6s var(--ease);pointer-events:none;overflow-y:auto}
.menu-open .mobile-nav{transform:translateY(0);pointer-events:auto}
.mobile-nav a{font-family:var(--display);font-size:13vw;font-weight:500;line-height:1.1;letter-spacing:-.02em;opacity:.4;transition:opacity .3s,padding-left .4s var(--ease)}
.mobile-nav a:hover{opacity:1;padding-left:18px}

/* language switch */
.nav-menu .lang-switch{display:flex;gap:2px;margin-left:6px;border-left:1px solid var(--line);padding-left:18px}
.lang-switch button{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--faint);padding:5px 8px;border:1px solid transparent;line-height:1;transition:color .3s var(--ease),border-color .3s var(--ease)}
.lang-switch button:hover{color:var(--white)}
.lang-switch button.on{color:var(--white);border-color:var(--line-strong)}
.mobile-nav .lang-switch{margin-top:48px;gap:6px}
.mobile-nav .lang-switch button{font-size:14px;letter-spacing:.18em;padding:10px 16px;opacity:.6}
.mobile-nav .lang-switch button.on{opacity:1}

/* ============================================================
   TYPOGRAPHY PRIMITIVES
   ============================================================ */
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--dim);display:inline-flex;align-items:center;gap:14px}
.eyebrow::before{content:"";width:36px;height:1px;background:var(--line-strong)}
h1,h2,h3{font-family:var(--display);font-weight:400;letter-spacing:-.025em;line-height:.98}
.h-mega{font-size:clamp(38px,7vw,104px);font-weight:300}
.h-xl{font-size:clamp(40px,7vw,96px);font-weight:300}
.h-lg{font-size:clamp(30px,4.6vw,62px);font-weight:300}
.italic{font-style:italic}
.outline{-webkit-text-stroke:1px var(--white);color:transparent}
.lead{font-size:clamp(17px,1.6vw,21px);color:var(--dim);line-height:1.6;max-width:540px}

/* ---------- reveal words / lines ---------- */
.line-mask{overflow:hidden;display:block}
.line-mask>span{display:block;transform:translateY(105%);transition:transform 1s var(--ease)}
.in .line-mask>span{transform:translateY(0)}
.line-mask:nth-child(2)>span{transition-delay:.08s}
.line-mask:nth-child(3)>span{transition-delay:.16s}
.line-mask:nth-child(4)>span{transition-delay:.24s}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}.reveal.d4{transition-delay:.4s}

/* char stagger (kinetic) */
.kin span{display:inline-block;transform:translateY(110%);opacity:0;transition:transform .8s var(--ease),opacity .8s var(--ease)}
.kin.in span{transform:translateY(0);opacity:1}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;display:inline-flex;align-items:center;gap:14px;padding:18px 30px;border:1px solid var(--line-strong);position:relative;overflow:hidden;transition:color .4s var(--ease)}
.btn span{position:relative;z-index:2}
.btn::before{content:"";position:absolute;inset:0;background:var(--white);transform:translateY(101%);transition:transform .45s var(--ease);z-index:1}
.btn:hover{color:var(--black)}
.btn:hover::before{transform:translateY(0)}
.btn .arrow{transition:transform .4s var(--ease)}
.btn:hover .arrow{transform:translate(4px,-4px)}
.btn-fill{background:var(--white);color:var(--black);border-color:var(--white)}
.btn-fill::before{background:var(--black)}
.btn-fill:hover{color:var(--white)}

.link-arrow{font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;display:inline-flex;align-items:center;gap:10px;position:relative}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-4px;width:100%;height:1px;background:var(--white);transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease)}
.link-arrow:hover::after{transform:scaleX(1);transform-origin:left}

/* ============================================================
   SECTIONS / LAYOUT
   ============================================================ */
.section{padding:140px 0;position:relative;z-index:2}
.section-sm{padding:100px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:48px;margin-bottom:90px;flex-wrap:wrap}
.sec-index{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--faint)}
.divider{height:1px;background:var(--line);width:100%}

/* hero */
.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;position:relative;padding-top:104px;padding-bottom:130px}
.hero-fx{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.hero>.wrap{position:relative;z-index:1;will-change:transform}
.hero-meta-row{position:absolute;bottom:46px;left:0;right:0;z-index:1}
/* scroll progress */
.scroll-prog{position:fixed;top:0;left:0;right:0;height:2px;z-index:9500;pointer-events:none;background:var(--line)}
.scroll-prog i{display:block;height:100%;background:var(--white);transform:scaleX(0);transform-origin:left;transition:transform .12s linear}
.hero-meta-row .wrap{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.scroll-cue{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);display:flex;align-items:center;gap:12px}
.scroll-cue .bar{width:1px;height:40px;background:var(--line-strong);position:relative;overflow:hidden}
.scroll-cue .bar::after{content:"";position:absolute;top:-100%;left:0;width:100%;height:100%;background:var(--white);animation:scrolldn 2s var(--ease-io) infinite}
@keyframes scrolldn{to{top:100%}}

/* marquee */
.marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;white-space:nowrap;padding:0}
.marquee-track{display:inline-flex;animation:mq 30s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{font-family:var(--display);font-weight:300;font-size:clamp(34px,5vw,72px);padding:36px 50px;display:inline-flex;align-items:center;gap:50px;letter-spacing:-.02em}
.marquee-item .star{font-size:.5em;opacity:.5}
.marquee-item.hollow{-webkit-text-stroke:1px var(--white);color:transparent}
@keyframes mq{to{transform:translateX(-50%)}}

/* ============================================================
   SERVICE / INDEX LIST (hover reveal)
   ============================================================ */
.idx-list{border-top:1px solid var(--line)}
.idx-row{border-bottom:1px solid var(--line);padding:34px 0;display:grid;grid-template-columns:80px 1fr auto;gap:30px;align-items:center;position:relative;transition:padding .5s var(--ease)}
.idx-row::before{content:"";position:absolute;inset:0;background:var(--white);transform:scaleY(0);transform-origin:bottom;transition:transform .5s var(--ease);z-index:0}
.idx-row>*{position:relative;z-index:1;transition:color .4s var(--ease)}
.idx-row:hover{padding-left:24px}
.idx-row:hover::before{transform:scaleY(1)}
.idx-row:hover *{color:var(--black)}
.idx-num{font-family:var(--mono);font-size:13px;letter-spacing:.1em}
.idx-title{font-family:var(--display);font-size:clamp(24px,3.2vw,42px);font-weight:300;letter-spacing:-.02em}
.idx-meta{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;text-align:right;opacity:.7}

/* ============================================================
   CARD GRID
   ============================================================ */
.grid{display:grid;gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.cell{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:46px 38px 52px;position:relative;overflow:hidden;min-height:300px;display:flex;flex-direction:column}
.cell-tag{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--faint)}
.cell h3{font-size:26px;font-weight:300;margin:auto 0 14px;letter-spacing:-.02em}
.cell p{font-size:15px;color:var(--dim);line-height:1.6}
.cell .corner{position:absolute;top:36px;right:38px;font-family:var(--mono);font-size:12px;opacity:.4;transition:transform .5s var(--ease),opacity .5s}
.cell:hover .corner{transform:rotate(90deg);opacity:1}
.cell::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:0;background:var(--white);transition:height .5s var(--ease);z-index:-1;opacity:.04}
.cell:hover::after{height:100%}

/* ============================================================
   STEP ROWS
   ============================================================ */
.steps{counter-reset:s}
.step{display:grid;grid-template-columns:120px 1fr;gap:40px;padding:48px 0;border-bottom:1px solid var(--line);align-items:start}
.step:first-child{border-top:1px solid var(--line)}
.step-k{font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:var(--dim)}
.step h3{font-size:clamp(26px,3vw,40px);font-weight:300;margin-bottom:16px;letter-spacing:-.02em}
.step p{font-size:16px;color:var(--dim);line-height:1.6;max-width:560px}

/* ============================================================
   STATS
   ============================================================ */
.stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.stat{padding:60px 30px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat .n{font-family:var(--display);font-weight:300;font-size:clamp(50px,7vw,92px);line-height:.9;letter-spacing:-.03em}
.stat .l{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-top:18px}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.field{display:flex;flex-direction:column;gap:12px;margin-bottom:36px}
.field label{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.field input,.field textarea{background:none;border:none;border-bottom:1px solid var(--line-strong);padding:12px 0;color:var(--white);font-family:var(--display);font-size:18px;cursor:none;transition:border-color .3s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--white)}
.field textarea{resize:none;min-height:80px}
.contact-info dt{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:8px}
.contact-info dd{font-size:clamp(20px,2.2vw,30px);font-weight:300;margin-bottom:34px;letter-spacing:-.01em}

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.page-head{padding:200px 0 90px;border-bottom:1px solid var(--line)}
.page-head .h-xl{margin-top:24px}
.crumb{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{border-top:1px solid var(--line);padding:80px 0 40px;position:relative;z-index:2}
.footer-cta{font-family:var(--display);font-weight:300;font-size:clamp(40px,8vw,130px);line-height:.95;letter-spacing:-.03em;margin-bottom:80px;display:block}
.footer-cta:hover{font-style:italic}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:60px;border-bottom:1px solid var(--line)}
.footer-grid h4{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:22px}
.footer-grid a{display:block;font-size:15px;color:var(--dim);margin-bottom:12px;transition:color .3s,padding-left .3s var(--ease)}
.footer-grid a:hover{color:var(--white);padding-left:8px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:30px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--faint);flex-wrap:wrap;gap:16px}

/* ============================================================
   LOADER
   ============================================================ */
.loader{position:fixed;inset:0;z-index:9000;background:var(--black);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:30px;transition:transform 1s var(--ease)}
.loader.done{transform:translateY(-100%)}
.loader-logo{font-family:var(--stencil);font-weight:700;font-size:clamp(40px,9vw,120px);letter-spacing:.18em;overflow:hidden}
.loader-logo span{display:inline-block;transform:translateY(110%);animation:loadup .8s var(--ease) forwards}
.loader-bar{width:200px;height:1px;background:var(--line)}
.loader-bar i{display:block;height:100%;background:var(--white);width:0;animation:loadbar 1.4s var(--ease) forwards}
.loader-pct{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--dim)}
@keyframes loadup{to{transform:translateY(0)}}
@keyframes loadbar{to{width:100%}}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:920px){
  :root{--gutter:24px}
  .nav-menu{display:none}
  .burger{display:flex}
  .grid-3{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr}
  .stat:last-child{border-right:1px solid var(--line)}
  .contact-grid{grid-template-columns:1fr;gap:60px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .step{grid-template-columns:1fr;gap:16px}
  .hero{min-height:auto;padding:140px 0 90px}
  .hero-meta-row{position:static;margin-top:50px}
  .hero-meta-row .wrap{justify-content:flex-start;gap:20px}
}
@media(max-width:560px){
  .grid-3,.grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .idx-row{grid-template-columns:50px 1fr;gap:16px}
  .idx-meta{display:none}
  .section{padding:90px 0}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .reveal,.line-mask>span,.kin span{opacity:1;transform:none}
}