/* =========================================================
   VOLTA — sneaker e-ticaret
   ========================================================= */
:root{
  --bg:#0d0d0f; --bg-2:#151519; --card:#1b1b20;
  --ink:#f4f4f2; --mute:#9a9aa2; --line:rgba(255,255,255,.12); --line-2:rgba(255,255,255,.26);
  --lime:#d8ff36; --red:#ff4d3d;
  --disp:'Barlow Condensed',system-ui,sans-serif;
  --sans:'Barlow',system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip;}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;font-weight:400;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:clip;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;color:inherit;background:none;border:none;cursor:pointer;}
input{font-family:inherit;font-size:16px;}
::selection{background:var(--lime);color:var(--bg);}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
h1,h2,h3,.logo{font-family:var(--disp);font-weight:800;line-height:.92;letter-spacing:-.01em;text-transform:uppercase;}
.wrap{max-width:1280px;margin:0 auto;padding:0 32px;}
.kick{display:inline-block;font-family:var(--disp);font-size:13px;font-weight:700;letter-spacing:.24em;
  text-transform:uppercase;color:var(--mute);margin-bottom:14px;}
.kick.lime{color:var(--lime);}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:16px 32px;
  background:var(--lime);color:var(--bg);font-family:var(--disp);font-size:16px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;border:2px solid var(--lime);transition:.24s var(--ease);}
.btn:hover{background:transparent;color:var(--lime);}
.btn.out{background:transparent;color:var(--ink);border-color:var(--line-2);}
.btn.out:hover{border-color:var(--ink);background:var(--ink);color:var(--bg);}
.btn.full{width:100%;}
.btn:active{transform:scale(.98);}

/* duyuru */
.ann{background:var(--lime);color:var(--bg);overflow:hidden;padding:7px 0;}
.ann-track{display:flex;align-items:center;gap:22px;width:max-content;animation:ann 30s linear infinite;
  font-family:var(--disp);font-size:13px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;white-space:nowrap;}
.ann-track i{font-style:normal;opacity:.5;}
@keyframes ann{to{transform:translateX(-50%);}}

/* header */
.hd{position:sticky;top:0;z-index:60;background:rgba(13,13,15,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:.3s;}
.hd.stuck{border-bottom-color:var(--line);background:rgba(13,13,15,.96);}
.hd-in{max-width:1280px;margin:0 auto;padding:0 32px;height:72px;display:flex;align-items:center;gap:30px;}
.logo{font-size:30px;letter-spacing:.06em;}
.nav{display:flex;gap:26px;margin:0 auto;}
.nav a{font-family:var(--disp);font-size:15px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--mute);transition:color .2s;}
.nav a:hover{color:var(--lime);}
.hd-r{display:flex;align-items:center;gap:4px;margin-left:auto;}
.ico{width:44px;height:44px;display:grid;place-items:center;position:relative;transition:.2s;}
.ico:hover{color:var(--lime);}
.ico svg{width:22px;height:22px;}
.cart-btn b{position:absolute;top:5px;right:3px;min-width:19px;height:19px;padding:0 5px;border-radius:99px;
  background:var(--lime);color:var(--bg);font-size:11px;font-weight:700;display:grid;place-items:center;
  transform:scale(0);transition:transform .3s var(--ease);}
.cart-btn.has b{transform:scale(1);}
.burger{display:none;flex-direction:column;gap:5px;}
.burger span{width:22px;height:2px;background:currentColor;display:block;}

/* hero */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(80% 70% at 78% 34%,rgba(216,255,54,.09),transparent 60%);}
.hero-in{position:relative;z-index:2;max-width:1280px;margin:0 auto;padding:56px 32px 64px;width:100%;
  display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;}
.hero h1{font-size:clamp(56px,7.6vw,124px);margin-bottom:20px;}
.hero h1 span{color:var(--lime);}
.hero p{max-width:44ch;font-size:17px;color:var(--mute);margin-bottom:28px;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;}
.hero-st{display:flex;gap:34px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap;}
.hero-st b{display:block;font-family:var(--disp);font-size:32px;font-weight:800;line-height:1;}
.hero-st span{font-size:12.5px;color:var(--mute);letter-spacing:.04em;}
.hero-v{position:relative;}
.hero-v::before{content:"";position:absolute;left:28%;right:-18px;top:36px;bottom:-18px;background:var(--lime);}
.hero-v img{position:relative;width:100%;height:min(60vh,560px);object-fit:cover;}
.hero-badge{position:absolute;left:-6px;top:8%;z-index:2;background:var(--bg);color:var(--lime);
  border:1px solid var(--lime);padding:7px 14px;font-family:var(--disp);font-size:13px;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;}
.marq{position:relative;z-index:2;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:12px 0;overflow:hidden;background:rgba(13,13,15,.6);}
.marq-t{display:flex;align-items:center;gap:26px;width:max-content;animation:ann 26s linear infinite;
  font-family:var(--disp);font-size:15px;font-weight:700;letter-spacing:.2em;color:var(--mute);white-space:nowrap;}
.marq-t i{color:var(--lime);font-style:normal;font-size:10px;}

/* beden bulucu */
.finder{padding:96px 0;background:var(--bg-2);}
.f-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.f-grid h2{font-size:clamp(38px,5vw,64px);margin-bottom:16px;}
.f-grid p{color:var(--mute);max-width:44ch;margin-bottom:26px;}
.f-in{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.f-in input{width:174px;padding:15px 46px 15px 16px;background:var(--bg);border:2px solid var(--line-2);
  color:var(--ink);font-size:19px;font-weight:600;}
.f-in input:focus{outline:none;border-color:var(--lime);}
.f-in .unit{margin-left:-56px;color:var(--mute);pointer-events:none;font-size:15px;}
.f-res{margin-top:22px;min-height:26px;font-size:15px;color:var(--mute);}
.f-res b{color:var(--lime);font-family:var(--disp);font-size:22px;letter-spacing:.04em;}
.f-vis{position:relative;}
.f-vis img{width:100%;height:420px;object-fit:cover;}
.f-chip{position:absolute;left:-18px;bottom:-18px;background:var(--lime);color:var(--bg);padding:18px 26px;}
.f-chip b{display:block;font-family:var(--disp);font-size:46px;line-height:1;}
.f-chip span{font-family:var(--disp);font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;}

/* bölümler */
.sec{padding:96px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap;margin-bottom:40px;}
.sec-head h2{font-size:clamp(36px,5vw,64px);}
.filters{display:flex;gap:8px;flex-wrap:wrap;}
.filters button{padding:10px 20px;border:1px solid var(--line-2);font-family:var(--disp);font-size:14px;
  font-weight:600;letter-spacing:.12em;text-transform:uppercase;transition:.2s;}
.filters button:hover{border-color:var(--ink);}
.filters button.on{background:var(--lime);border-color:var(--lime);color:var(--bg);}

/* ürün kartı */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.card{background:var(--card);display:flex;flex-direction:column;transition:transform .3s var(--ease);}
.card.hide{display:none;}
.card:hover{transform:translateY(-5px);}
.card-img{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--bg-2);}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease),opacity .3s;}
.card:hover .card-img img{transform:scale(1.06);}
.card-tag{position:absolute;top:10px;left:10px;padding:4px 11px;background:var(--lime);color:var(--bg);
  font-family:var(--disp);font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;}
.card-tag.red{background:var(--red);color:#fff;}
.card-b{padding:16px 16px 18px;display:flex;flex-direction:column;flex:1;}
.card-b .cat{font-family:var(--disp);font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--mute);}
.card-b h3{font-size:22px;margin:5px 0 8px;}
.price{display:flex;align-items:baseline;gap:9px;margin-bottom:12px;}
.price b{font-family:var(--disp);font-size:25px;font-weight:700;}
.price s{font-size:14px;color:var(--mute);}
.colors{display:flex;gap:6px;margin-bottom:12px;}
.colors button{width:24px;height:24px;border:2px solid transparent;transition:.2s;}
.colors button.on{border-color:var(--lime);}
.sizes{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:14px;}
.sizes button{min-width:36px;padding:6px 4px;border:1px solid var(--line-2);font-size:13px;font-weight:600;transition:.16s;}
.sizes button:hover:not(:disabled){border-color:var(--ink);}
.sizes button.on{background:var(--ink);color:var(--bg);border-color:var(--ink);}
.sizes button:disabled{opacity:.28;cursor:not-allowed;text-decoration:line-through;}
.card-add{margin-top:auto;padding:13px;background:var(--ink);color:var(--bg);font-family:var(--disp);font-size:15px;
  font-weight:700;letter-spacing:.12em;text-transform:uppercase;transition:.2s;}
.card-add:hover{background:var(--lime);}
.low{font-size:12px;color:var(--red);margin-bottom:10px;font-weight:500;}

/* neden */
.why{padding:96px 0;background:var(--bg-2);}
.w-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;}
.w-item b{font-family:var(--disp);font-size:52px;color:var(--lime);line-height:1;display:block;margin-bottom:12px;}
.w-item h3{font-size:24px;margin-bottom:8px;}
.w-item p{color:var(--mute);font-size:14.5px;}

/* şerit */
.strip{position:relative;}
.strip::after{content:"";position:absolute;inset:0;background:linear-gradient(rgba(13,13,15,.72),rgba(13,13,15,.72));}
.strip-g{display:grid;grid-template-columns:repeat(3,1fr);}
.strip-g img{width:100%;height:360px;object-fit:cover;filter:grayscale(1) brightness(.72);}
.strip-t{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;}
.strip-t h2{font-size:clamp(44px,8vw,110px);text-align:center;}
.strip-t h2 span{color:var(--lime);}

/* footer */
.ft{padding:64px 0 26px;border-top:1px solid var(--line);}
.ft-in{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}
.ft-in p{color:var(--mute);font-size:14.5px;margin-top:12px;max-width:34ch;}
.ft h4{font-family:var(--disp);font-size:14px;letter-spacing:.16em;text-transform:uppercase;margin-bottom:12px;}
.ft-in a{display:block;color:var(--mute);font-size:14.5px;padding:5px 0;transition:color .2s;}
.ft-in a:hover{color:var(--lime);}
.ft-b{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:var(--mute);}
.ft-b a{color:var(--lime);}

/* sepet */
.ov{position:fixed;inset:0;z-index:90;background:rgba(0,0,0,.6);opacity:0;pointer-events:none;transition:opacity .35s;}
.ov.on{opacity:1;pointer-events:auto;}
.cart{position:fixed;top:0;right:0;bottom:0;z-index:100;width:min(420px,100%);background:var(--bg-2);
  display:flex;flex-direction:column;transform:translateX(101%);transition:transform .4s var(--ease);}
.cart.on{transform:none;}
.cart-h{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--line);}
.cart-h h3{font-size:26px;letter-spacing:.06em;}
.ship{padding:14px 24px;border-bottom:1px solid var(--line);}
.ship-bar{height:4px;background:var(--line);overflow:hidden;margin-bottom:8px;}
.ship-bar span{display:block;height:100%;width:0;background:var(--lime);transition:width .5s var(--ease);}
.ship p{font-size:12.5px;color:var(--mute);}
.ship p b{color:var(--lime);}
.cart-b{flex:1;overflow-y:auto;padding:6px 24px;}
.ci{display:flex;gap:13px;padding:16px 0;border-bottom:1px solid var(--line);}
.ci img{width:74px;height:92px;object-fit:cover;flex-shrink:0;}
.ci-b{flex:1;min-width:0;}
.ci-b h4{font-family:var(--disp);font-size:19px;font-weight:700;text-transform:uppercase;}
.ci-b .v{font-size:12.5px;color:var(--mute);margin-bottom:8px;}
.qty{display:inline-flex;align-items:center;border:1px solid var(--line-2);}
.qty button{width:30px;height:30px;font-size:16px;}
.qty span{min-width:26px;text-align:center;font-size:14px;font-weight:600;}
.ci-p{text-align:right;display:flex;flex-direction:column;justify-content:space-between;}
.ci-p b{font-family:var(--disp);font-size:19px;font-weight:700;}
.ci-rm{font-size:11.5px;color:var(--mute);text-decoration:underline;}
.cart-empty{padding:60px 0;text-align:center;color:var(--mute);}
.cart-empty b{display:block;font-family:var(--disp);font-size:26px;color:var(--ink);margin-bottom:6px;text-transform:uppercase;}
.cart-f{padding:20px 24px;border-top:1px solid var(--line);}
.cart-tot{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px;}
.cart-tot b{font-family:var(--disp);font-size:30px;font-weight:800;}

/* uçan ürün */
.fly{position:fixed;z-index:110;width:80px;height:100px;object-fit:cover;pointer-events:none;
  transition:all .75s cubic-bezier(.4,-.15,.6,1);border:2px solid var(--lime);}

.toast{position:fixed;left:50%;bottom:26px;z-index:120;transform:translate(-50%,18px);padding:13px 24px;
  background:var(--lime);color:var(--bg);font-family:var(--disp);font-size:15px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;opacity:0;pointer-events:none;transition:.35s var(--ease);}
.toast.on{opacity:1;transform:translate(-50%,0);}

@media (max-width:1024px){
  .grid{grid-template-columns:repeat(3,1fr);}
  .w-grid{grid-template-columns:1fr 1fr;}
  .f-grid{grid-template-columns:1fr;gap:40px;}
  .ft-in{grid-template-columns:1fr 1fr;}
}
@media (max-width:760px){
  .wrap,.hd-in,.hero-in{padding-left:18px;padding-right:18px;}
  .sec,.finder,.why{padding:60px 0;}
  .burger{display:flex;}
  .nav{position:fixed;inset:72px 0 auto;background:var(--bg-2);flex-direction:column;gap:0;padding:8px 18px 20px;
    border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .38s var(--ease);z-index:50;}
  .nav.on{transform:none;}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:17px;}
  .hero-in{grid-template-columns:1fr;gap:28px;padding:34px 18px 44px;}
  .hero-v{order:-1;}
  .hero-v img{height:300px;}
  .hero-st{gap:22px;margin-top:26px;}
  .hero-st b{font-size:26px;}
  .hd-in{gap:10px;height:62px;}
  .logo{font-size:25px;}
  .grid{grid-template-columns:1fr 1fr;gap:12px;}
  .card-b{padding:13px;}
  .card-b h3{font-size:18px;}
  .price b{font-size:21px;}
  .sizes button{min-width:32px;font-size:12px;}
  .w-grid{grid-template-columns:1fr;}
  .strip-g{grid-template-columns:1fr;}
  .strip-g img:nth-child(n+2){display:none;}
  .strip-g img{height:300px;}
  .f-vis img{height:280px;}
  .ft-in{grid-template-columns:1fr;gap:24px;}
}