/* ============================================================
   AIK AUTO TECH - Chrome, shell & navigation
   Preloader / cursor / header / mega-nav / footer / transitions
   ============================================================ */

/* ------------------------------------------------------------
   1. Preloader  -- logo mark draws, counter runs, panels part
   ------------------------------------------------------------ */
#preload{
  position:fixed;inset:0;z-index:10000;
  background:var(--ink-950);
  display:grid;place-items:center;
  transition:opacity .5s ease .4s,visibility 0s linear .9s;
}
#preload::before,#preload::after{
  content:"";position:absolute;left:0;width:100%;height:50.2%;
  background:var(--ink-950);
  transition:transform 1s var(--e-in-out) .18s;
  z-index:-1;
}
#preload::before{top:0}
#preload::after{bottom:0}
#preload .pl-inner{
  display:grid;justify-items:center;gap:1.5rem;
  transition:opacity .35s ease,transform .5s var(--e-out);
}
#preload .pl-mark{width:clamp(84px,13vw,138px);opacity:.96}
#preload .pl-mark path,#preload .pl-mark polyline{
  stroke-dasharray:1;stroke-dashoffset:1;
  animation:plDraw 1.5s var(--e-out) forwards;
}
@keyframes plDraw{to{stroke-dashoffset:0}}
#preload .pl-bar{
  width:min(230px,44vw);height:2px;background:var(--line-2);
  border-radius:2px;overflow:hidden;position:relative;
}
#preload .pl-bar i{
  position:absolute;inset:0;transform-origin:left;
  transform:scaleX(var(--p,0));
  background:linear-gradient(90deg,var(--navy-500),var(--blue-bright));
  transition:transform .25s linear;
}
#preload .pl-num{
  font-family:var(--f-mono);font-size:var(--t-xs);
  letter-spacing:.24em;color:var(--tx-low);
}
html.loaded #preload{opacity:0;visibility:hidden}
html.loaded #preload .pl-inner{opacity:0;transform:translateY(-14px)}
html.loaded #preload::before{transform:translateY(-101%)}
html.loaded #preload::after{transform:translateY(101%)}
.no-js #preload{display:none}

/* ------------------------------------------------------------
   2. Custom cursor  (pointer:fine only)
   ------------------------------------------------------------ */
.cursor,.cursor-ring{
  position:fixed;top:0;left:0;z-index:9998;
  pointer-events:none;border-radius:50%;
  mix-blend-mode:difference;
  opacity:0;transition:opacity .3s ease;
}
.cursor{width:7px;height:7px;background:#fff;margin:-3.5px 0 0 -3.5px}
.cursor-ring{
  width:40px;height:40px;margin:-20px 0 0 -20px;
  border:1px solid rgba(255,255,255,.6);
  transition:width .35s var(--e-out),height .35s var(--e-out),
             margin .35s var(--e-out),border-color .35s var(--e-out),
             background .35s var(--e-out),opacity .3s ease;
}
html.has-cursor .cursor,html.has-cursor .cursor-ring{opacity:1}
html.has-cursor.cursor-hidden .cursor,
html.has-cursor.cursor-hidden .cursor-ring{opacity:0}
.cursor-ring.is-hover{
  width:64px;height:64px;margin:-32px 0 0 -32px;
  background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.9);
}
.cursor-ring.is-drag{
  width:88px;height:88px;margin:-44px 0 0 -44px;
  background:rgba(255,255,255,.14);border-color:transparent;
}
.cursor-label{
  position:fixed;top:0;left:0;z-index:9999;pointer-events:none;
  font-family:var(--f-mono);font-size:9px;letter-spacing:.2em;
  text-transform:uppercase;color:#fff;mix-blend-mode:difference;
  transform:translate(-50%,-50%) scale(.6);opacity:0;
  transition:opacity .25s ease,transform .25s var(--e-out);
}
.cursor-label.on{opacity:1;transform:translate(-50%,-50%) scale(1)}
html.has-cursor a,html.has-cursor button,
html.has-cursor [data-cursor]{cursor:none}
html.has-cursor{cursor:none}
@media(hover:none),(pointer:coarse){
  .cursor,.cursor-ring,.cursor-label{display:none}
  html.has-cursor,html.has-cursor a,html.has-cursor button{cursor:auto}
}

/* ------------------------------------------------------------
   3. Scroll progress rail
   ------------------------------------------------------------ */
.progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:900;
  background:transparent;pointer-events:none;
}
.progress i{
  display:block;height:100%;width:100%;transform-origin:left;
  transform:scaleX(var(--sp,0));
  background:linear-gradient(90deg,var(--navy-500),var(--blue),var(--steel-200));
  box-shadow:0 0 12px var(--blue-glow);
}

/* ------------------------------------------------------------
   4. Header
   ------------------------------------------------------------ */
.hdr{
  position:fixed;top:0;left:0;right:0;z-index:800;
  height:var(--hdr-h);
  display:flex;align-items:center;
  transition:height .4s var(--e-out),background .4s ease,
             backdrop-filter .4s ease,border-color .4s ease,transform .5s var(--e-out);
  border-bottom:1px solid transparent;
}
.hdr::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(4,6,10,.92),rgba(4,6,10,.55) 60%,transparent);
  opacity:1;transition:opacity .4s ease;
}
.hdr.stuck{
  height:64px;
  background:rgba(7,10,17,.82);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  border-bottom-color:var(--line);
}
.hdr.stuck::before{opacity:0}
.hdr.hide{transform:translateY(-104%)}
.hdr .wrap{
  display:flex;align-items:center;gap:clamp(1rem,3vw,2.6rem);
  width:100%;max-width:var(--maxw);
}

/* Brand */
.brand{display:flex;align-items:center;gap:.72rem;flex:0 0 auto;position:relative}
.brand img{
  width:clamp(38px,4vw,46px);height:auto;
  transition:transform .55s var(--e-spring),filter .4s ease;
  filter:drop-shadow(0 2px 10px rgba(47,123,255,.28));
}
.brand:hover img{transform:rotate(-6deg) scale(1.09)}
.brand-tx{display:grid;line-height:1;gap:.24rem}
.brand-tx b{
  font-family:var(--f-display);font-size:1.06rem;font-weight:800;
  letter-spacing:.13em;color:var(--tx-hi);
}
.brand-tx span{
  font-family:var(--f-mono);font-size:.53rem;letter-spacing:.32em;
  color:var(--steel-400);text-transform:uppercase;
}
@media(max-width:420px){.brand-tx span{display:none}}

/* Primary nav */
.nav{display:flex;align-items:center;gap:.15rem;margin-left:auto}
@media(max-width:1080px){.nav{display:none}}
.nav>li{position:relative}
.nav a,.nav .navbtn{
  position:relative;display:flex;align-items:center;gap:.4rem;
  padding:.62rem .92rem;border-radius:var(--r-sm);
  font-size:.84rem;font-weight:500;color:var(--tx-mid);
  letter-spacing:.012em;
  transition:color .3s ease;
}
.nav a::after,.nav .navbtn::after{
  content:"";position:absolute;left:.92rem;right:.92rem;bottom:.36rem;
  height:1px;background:var(--blue-bright);
  transform:scaleX(0);transform-origin:right;
  transition:transform .45s var(--e-out);
}
.nav a:hover,.nav .navbtn:hover,
.nav a:focus-visible,.nav .navbtn[aria-expanded="true"]{color:var(--tx-hi)}
.nav a:hover::after,.nav .navbtn:hover::after,
.nav .navbtn[aria-expanded="true"]::after{transform:scaleX(1);transform-origin:left}
.nav a[aria-current="page"]{color:var(--tx-hi)}
.nav a[aria-current="page"]::after{transform:scaleX(1);background:var(--chrome-dim)}
.navbtn svg{transition:transform .35s var(--e-out)}
.navbtn[aria-expanded="true"] svg{transform:rotate(180deg)}

/* Dropdown */
.drop{
  position:absolute;top:calc(100% + 12px);left:50%;
  transform:translateX(-50%) translateY(10px);
  min-width:290px;padding:.55rem;
  background:rgba(13,18,28,.95);
  -webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);
  border:1px solid var(--line-2);border-radius:var(--r);
  box-shadow:var(--sh-lg);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .3s ease,transform .4s var(--e-out),visibility 0s .4s;
}
.drop::before{
  content:"";position:absolute;top:-9px;left:0;right:0;height:9px;
}
li.open>.drop{
  opacity:1;visibility:visible;pointer-events:auto;
  transform:translateX(-50%) translateY(0);
  transition:opacity .3s ease,transform .45s var(--e-out),visibility 0s;
}
.drop a{
  display:grid;grid-template-columns:auto 1fr;gap:.1rem .85rem;
  padding:.72rem .85rem;border-radius:var(--r-sm);width:100%;
}
.drop a::after{display:none}
.drop a:hover{background:var(--glass-2)}
.drop a i{
  grid-row:span 2;width:34px;height:34px;border-radius:8px;
  background:var(--navy-800);border:1px solid var(--line-2);
  display:grid;place-items:center;color:var(--blue-bright);
  font-family:var(--f-mono);font-size:.6rem;font-style:normal;
  transition:background .3s ease,color .3s ease,transform .35s var(--e-spring);
}
.drop a:hover i{background:var(--blue);color:#fff;transform:scale(1.08)}
.drop a b{font-size:.88rem;font-weight:600;color:var(--tx-hi);font-family:var(--f-body)}
.drop a span{font-size:.72rem;color:var(--tx-low);line-height:1.4}

/* Header actions */
.hdr-act{display:flex;align-items:center;gap:.6rem;flex:0 0 auto}
@media(max-width:1080px){.hdr-act .btn{display:none}}

/* Burger */
.burger{
  display:none;width:44px;height:44px;position:relative;
  border:1px solid var(--line-2);border-radius:var(--r-sm);
  background:var(--glass);
  transition:background .3s ease,border-color .3s ease;
}
@media(max-width:1080px){.burger{display:block}}
.burger:hover{background:var(--glass-2);border-color:var(--line-3)}
.burger span{
  position:absolute;left:12px;width:20px;height:1.5px;
  background:var(--tx-hi);border-radius:2px;
  transition:transform .45s var(--e-out),opacity .25s ease,width .35s var(--e-out);
}
.burger span:nth-child(1){top:16px}
.burger span:nth-child(2){top:21.5px;width:14px}
.burger span:nth-child(3){top:27px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;width:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ------------------------------------------------------------
   5. Mobile drawer
   ------------------------------------------------------------ */
.drawer{
  position:fixed;inset:0;z-index:790;
  background:linear-gradient(165deg,var(--navy-900),var(--ink-950) 62%);
  padding:calc(var(--hdr-h) + 2rem) var(--gut) 2rem;
  display:flex;flex-direction:column;
  overflow-y:auto;
  clip-path:circle(0% at calc(100% - 46px) 40px);
  transition:clip-path .75s var(--e-in-out),visibility 0s .75s;
  visibility:hidden;
}
.drawer.open{clip-path:circle(150% at calc(100% - 46px) 40px);visibility:visible;transition:clip-path .75s var(--e-in-out),visibility 0s}
.drawer nav{display:grid;gap:.2rem;margin-top:1rem}
.drawer nav>a,.drawer .dgroup>button{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  font-family:var(--f-display);font-size:clamp(1.5rem,6.4vw,2.3rem);
  font-weight:700;letter-spacing:-.02em;color:var(--tx-hi);
  padding:.5rem 0;border-bottom:1px solid var(--line);
  width:100%;text-align:left;
  opacity:0;transform:translateY(24px);
  transition:opacity .5s var(--e-out),transform .5s var(--e-out),color .3s ease;
}
.drawer.open nav>a,.drawer.open .dgroup>button{opacity:1;transform:none}
.drawer.open nav>*:nth-child(1) >button,.drawer.open nav>a:nth-child(1){transition-delay:.16s}
.drawer.open nav>*:nth-child(2) >button,.drawer.open nav>a:nth-child(2){transition-delay:.22s}
.drawer.open nav>*:nth-child(3) >button,.drawer.open nav>a:nth-child(3){transition-delay:.28s}
.drawer.open nav>*:nth-child(4) >button,.drawer.open nav>a:nth-child(4){transition-delay:.34s}
.drawer.open nav>*:nth-child(5) >button,.drawer.open nav>a:nth-child(5){transition-delay:.40s}
.drawer.open nav>*:nth-child(6) >button,.drawer.open nav>a:nth-child(6){transition-delay:.46s}
.drawer.open nav>*:nth-child(7) >button,.drawer.open nav>a:nth-child(7){transition-delay:.52s}
.drawer nav>a:hover{color:var(--blue-bright)}
.drawer .dgroup>button svg{transition:transform .35s var(--e-out);flex:0 0 auto}
.drawer .dgroup>button[aria-expanded="true"] svg{transform:rotate(180deg)}
.drawer .dsub{
  display:grid;overflow:hidden;
  grid-template-rows:0fr;transition:grid-template-rows .5s var(--e-out);
}
.drawer .dgroup>button[aria-expanded="true"]+.dsub{grid-template-rows:1fr}
.drawer .dsub>div{overflow:hidden;display:grid;gap:.1rem;padding-left:.4rem}
.drawer .dsub a{
  padding:.62rem 0;font-size:.98rem;color:var(--tx-mid);
  border-bottom:1px solid var(--line);
  transition:color .3s ease,padding-left .3s var(--e-out);
}
.drawer .dsub a:hover{color:var(--blue-bright);padding-left:.5rem}
.drawer-foot{margin-top:auto;padding-top:2rem;display:grid;gap:1rem}
.drawer-foot .btn{width:100%;justify-content:center}
.drawer-meta{
  display:grid;gap:.4rem;font-size:.82rem;color:var(--tx-low);
  font-family:var(--f-mono);letter-spacing:.04em;
}
.drawer-meta a:hover{color:var(--blue-bright)}

/* ------------------------------------------------------------
   6. Page transition curtain
   ------------------------------------------------------------ */
.curtain{
  position:fixed;inset:0;z-index:9500;pointer-events:none;
  display:grid;grid-template-columns:repeat(5,1fr);
}
.curtain i{
  background:var(--navy-900);
  transform:scaleY(0);transform-origin:bottom;
  transition:transform .55s var(--e-in-out);
}
.curtain i:nth-child(1){transition-delay:0s}
.curtain i:nth-child(2){transition-delay:.05s}
.curtain i:nth-child(3){transition-delay:.1s}
.curtain i:nth-child(4){transition-delay:.15s}
.curtain i:nth-child(5){transition-delay:.2s}
.curtain.on i{transform:scaleY(1)}

/* ------------------------------------------------------------
   7. Footer
   ------------------------------------------------------------ */
.ftr{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--ink-950) 0%,var(--navy-900) 100%);
  border-top:1px solid var(--line);
  padding-top:clamp(3.5rem,7vw,6rem);
}
.ftr-top{
  display:grid;grid-template-columns:minmax(0,1.35fr) repeat(3,minmax(0,1fr));
  gap:clamp(2rem,4vw,3.5rem);
  padding-bottom:clamp(2.5rem,5vw,4rem);
}
@media(max-width:1000px){.ftr-top{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.ftr-top{grid-template-columns:1fr}}
.ftr h5{
  font-family:var(--f-mono);font-size:.68rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--steel-400);font-weight:500;
  margin-bottom:1.15rem;
}
.ftr-col ul{display:grid;gap:.62rem}
.ftr-col a{
  font-size:.9rem;color:var(--tx-mid);display:inline-flex;align-items:center;gap:.5rem;
  transition:color .3s ease,transform .35s var(--e-out);
}
.ftr-col a::before{
  content:"";width:0;height:1px;background:var(--blue-bright);
  transition:width .35s var(--e-out);
}
.ftr-col a:hover{color:var(--tx-hi)}
.ftr-col a:hover::before{width:14px}
.ftr-brand p{font-size:.9rem;color:var(--tx-mid);max-width:38ch;margin-top:1.1rem}
.ftr-brand .brand{margin-bottom:0}
.ftr-badges{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.4rem}

/* Oversized wordmark */
.ftr-mark{
  position:relative;
  padding-block:clamp(1rem,3vw,2rem) 0;
  overflow:hidden;
  -webkit-user-select:none;user-select:none;
}
.ftr-mark span{
  display:block;text-align:center;
  font-family:var(--f-display);font-weight:800;
  font-size:clamp(4rem,20vw,17rem);line-height:.78;
  letter-spacing:-.05em;
  background:linear-gradient(180deg,rgba(196,212,232,.19),rgba(196,212,232,0) 78%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  transform:translateY(var(--fy,0));
  transition:transform .1s linear;
}
.ftr-bar{
  border-top:1px solid var(--line);
  padding-block:1.4rem;
  display:flex;flex-wrap:wrap;gap:1rem;
  align-items:center;justify-content:space-between;
  font-size:.78rem;color:var(--tx-low);
  font-family:var(--f-mono);letter-spacing:.04em;
}
.ftr-bar nav{display:flex;flex-wrap:wrap;gap:1.4rem}
.ftr-bar a:hover{color:var(--tx-hi)}

/* Back to top */
.totop{
  position:fixed;right:clamp(1rem,2.5vw,2rem);bottom:clamp(1rem,2.5vw,2rem);
  z-index:700;width:50px;height:50px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(13,18,28,.8);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line-2);color:var(--tx-hi);
  opacity:0;transform:translateY(18px) scale(.85);pointer-events:none;
  transition:opacity .4s ease,transform .5s var(--e-spring),
             background .3s ease,border-color .3s ease;
}
.totop.on{opacity:1;transform:none;pointer-events:auto}
.totop:hover{background:var(--blue);border-color:var(--blue);transform:translateY(-4px)}
.totop svg{transition:transform .35s var(--e-out)}
.totop:hover svg{transform:translateY(-3px)}