/* ============================================================
   STRYDE — Aero '26 launch site
   Brand: ink / paper / one volt accent. Anton display + Inter.
   A commerce-led, light↔dark rhythm — deliberately NOT the deck.
   ============================================================ */
:root{
  --ink:#0B0B0C;
  --ink2:#141416;
  --ink3:#1C1C1F;
  --paper:#F4F4F2;
  --white:#FFFFFF;
  --volt:#C6FF00;
  --volt-ink:#0B0B0C;
  --line-d:rgba(245,245,245,.14);
  --line-l:rgba(11,11,12,.12);
  --muted-d:rgba(245,245,245,.62);
  --muted-l:rgba(11,11,12,.56);
  --ease:cubic-bezier(.19,1,.22,1);
  --nav-h:74px;
  --pad:clamp(20px,5vw,90px);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Inter",system-ui,sans-serif;
  background:var(--ink);
  color:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}

/* ---------- type ---------- */
.display{font-family:"Anton",Impact,sans-serif;font-weight:400;text-transform:uppercase;line-height:.86;letter-spacing:.004em}
.skew{display:inline-block;transform:skewX(-9deg);white-space:nowrap}
.volt{color:var(--volt)}
.eyebrow{font-weight:600;font-size:13px;letter-spacing:.32em;text-transform:uppercase;color:var(--volt)}
.eyebrow.dim{color:var(--muted-d)}

/* ---------- speed-mark ---------- */
.sm{display:inline-flex;align-items:flex-end;gap:3px;--s:1}
.sm i{display:block;width:calc(9px*var(--s));transform:skewX(-16deg);border-radius:1px;background:currentColor}
.sm i:nth-child(1){height:calc(16px*var(--s));opacity:.45}
.sm i:nth-child(2){height:calc(24px*var(--s));opacity:.7}
.sm i:nth-child(3){height:calc(34px*var(--s));background:var(--volt);opacity:1}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:11px;font-weight:600;font-size:15px;letter-spacing:.02em;
  padding:16px 26px;border-radius:2px;transition:transform .2s var(--ease),background .2s,color .2s,box-shadow .25s;white-space:nowrap}
.btn .arr{transition:transform .25s var(--ease)}
.btn:hover .arr{transform:translateX(5px)}
.btn-volt{background:var(--volt);color:var(--volt-ink);box-shadow:0 0 0 rgba(198,255,0,0)}
.btn-volt:hover{box-shadow:0 10px 36px rgba(198,255,0,.32);transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--line-d);color:var(--paper)}
.btn-ghost:hover{border-color:var(--paper);transform:translateY(-2px)}
.btn-ghost.onlight{border-color:var(--line-l);color:var(--ink)}
.btn-ghost.onlight:hover{border-color:var(--ink)}
.btn-dark{background:var(--ink);color:var(--paper)}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.25)}

/* ============================================================ NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;padding:0 var(--pad);
  transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(11,11,12,.82);backdrop-filter:blur(14px);border-bottom-color:var(--line-d)}
.nav .brand{display:flex;align-items:center;gap:13px}
.nav .brand img{height:26px;width:auto}
.nav .links{display:flex;align-items:center;gap:36px}
.nav .links a{font-size:14px;font-weight:500;letter-spacing:.04em;color:var(--paper);opacity:.82;position:relative;padding:6px 0}
.nav .links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--volt);transition:width .25s var(--ease)}
.nav .links a:hover{opacity:1}
.nav .links a:hover::after{width:100%}
.nav .right{display:flex;align-items:center;gap:18px}
.nav .buy{background:var(--volt);color:var(--volt-ink);font-weight:700;font-size:14px;letter-spacing:.02em;
  padding:11px 20px;border-radius:2px;transition:transform .2s,box-shadow .25s}
.nav .buy:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(198,255,0,.3)}
.nav .burger{display:none;flex-direction:column;gap:5px;padding:8px}
.nav .burger span{width:24px;height:2px;background:var(--paper);transition:.25s}
.mobile-menu{position:fixed;inset:var(--nav-h) 0 auto 0;z-index:99;background:rgba(11,11,12,.97);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-d);display:none;flex-direction:column;padding:18px var(--pad) 28px}
.mobile-menu a{font-family:"Anton";text-transform:uppercase;font-size:30px;letter-spacing:.01em;padding:14px 0;border-bottom:1px solid var(--line-d)}
.mobile-menu.open{display:flex}

/* ============================================================ HERO */
.hero{position:relative;min-height:100vh;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;
  gap:40px;padding:calc(var(--nav-h) + 30px) var(--pad) 60px;overflow:hidden}
.hero::before{content:"";position:absolute;width:90vmax;height:90vmax;right:-26vmax;top:-12vmax;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,0,.16),transparent 62%);pointer-events:none}
.hero .ghost{position:absolute;left:-2vw;bottom:-6vh;font-family:"Anton";font-size:34vw;line-height:.7;color:transparent;
  -webkit-text-stroke:1.5px rgba(245,245,245,.05);pointer-events:none;z-index:0;text-transform:uppercase}
.hero .copy{position:relative;z-index:2;max-width:680px}
.hero .tag{display:inline-flex;align-items:center;gap:12px;border:1px solid var(--line-d);border-radius:999px;
  padding:8px 16px 8px 12px;margin-bottom:30px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-d)}
.hero .tag b{color:var(--volt);font-weight:700}
.hero h1{font-size:clamp(58px,8.4vw,142px);margin-bottom:26px}
.hero .sub{font-size:clamp(17px,1.5vw,21px);line-height:1.55;color:var(--muted-d);max-width:520px;margin-bottom:38px}
.hero .ctas{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero .meta{display:flex;gap:30px;margin-top:46px;flex-wrap:wrap}
.hero .meta .m .k{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted-d);margin-bottom:6px}
.hero .meta .m .v{font-family:"Anton";font-size:26px;letter-spacing:.02em}
.hero .shoebox{position:relative;z-index:1;display:flex;align-items:center;justify-content:center}
.hero .shoebox::after{content:"";position:absolute;width:62%;height:24px;bottom:14%;left:19%;border-radius:50%;
  background:radial-gradient(ellipse,rgba(0,0,0,.6),transparent 70%);filter:blur(6px)}
.hero .shoebox img{width:118%;max-width:none;filter:drop-shadow(0 40px 60px rgba(0,0,0,.55));transform:rotate(-4deg)}
.hero .price-flag{position:absolute;top:8%;right:2%;z-index:3;background:var(--volt);color:var(--volt-ink);
  font-weight:700;padding:14px 18px;border-radius:2px;text-align:center;transform:rotate(3deg);box-shadow:0 14px 30px rgba(198,255,0,.25)}
.hero .price-flag .small{font-size:11px;letter-spacing:.18em;text-transform:uppercase;opacity:.7}
.hero .price-flag .big{font-family:"Anton";font-size:30px;line-height:1}

/* ============================================================ MARQUEE */
.marquee{background:var(--volt);color:var(--volt-ink);overflow:hidden;border-block:1px solid #aadd00;padding:15px 0;position:relative;z-index:3}
.marquee .track{display:flex;gap:0;width:max-content;animation:scroll 26s linear infinite}
.marquee .track span{font-family:"Anton";text-transform:uppercase;font-size:24px;letter-spacing:.04em;padding:0 26px;display:inline-flex;align-items:center;gap:26px}
.marquee .track .dot{width:9px;height:9px;background:var(--volt-ink);transform:rotate(45deg)}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ============================================================ SECTION SHELL */
.section{padding:clamp(72px,9vw,140px) var(--pad);position:relative}
.section.paper{background:var(--paper);color:var(--ink)}
.section.dark{background:var(--ink)}
.section.ink2{background:var(--ink2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:clamp(36px,5vw,68px);flex-wrap:wrap}
.sec-head h2{font-size:clamp(38px,5.4vw,84px);max-width:14ch}
.sec-head .lead{font-size:clamp(16px,1.4vw,19px);line-height:1.6;color:var(--muted-d);max-width:420px}
.section.paper .sec-head .lead{color:var(--muted-l)}
.kick{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.kick .ln{width:46px;height:2px;background:var(--volt)}

/* ============================================================ PRODUCT SPOTLIGHT */
.spot{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(36px,5vw,80px);align-items:center}
.spot .stage{position:relative;background:radial-gradient(circle at 50% 45%,#1b1b1e,#0b0b0c 72%);border-radius:6px;
  aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--line-d)}
.spot .stage .smwm{position:absolute;right:6%;bottom:8%;color:#fff;opacity:.16}
.spot .stage img{width:104%;max-width:none;transform:rotate(-6deg);filter:drop-shadow(0 30px 50px rgba(0,0,0,.55))}
.spot .info h3{font-size:clamp(34px,4.2vw,62px);margin-bottom:20px;line-height:.9}
.spot .info p{font-size:18px;line-height:1.6;color:var(--muted-d);max-width:480px;margin-bottom:34px}
.specs{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-d);border:1px solid var(--line-d);margin-bottom:34px}
.specs .sp{background:var(--ink);padding:22px 22px 24px}
.specs .sp .k{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--volt);margin-bottom:10px}
.specs .sp .v{font-family:"Anton";font-size:30px;letter-spacing:.01em;line-height:1}
.specs .sp .u{font-size:13px;color:var(--muted-d);margin-top:5px}
.buybar{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.buybar .price{font-family:"Anton";font-size:46px;line-height:1}
.buybar .price small{font-size:16px;color:var(--muted-d);font-family:"Inter";font-weight:500;margin-left:8px}
.sizes{display:flex;gap:8px;margin:8px 0 4px;flex-wrap:wrap}
.sizes button{width:46px;height:46px;border:1px solid var(--line-d);border-radius:2px;font-weight:600;font-size:14px;
  color:var(--paper);transition:.18s}
.sizes button:hover{border-color:var(--paper)}
.sizes button.sel{background:var(--volt);color:var(--volt-ink);border-color:var(--volt)}
.size-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:26px}
.size-row .lbl{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-d)}

/* ============================================================ CAMPAIGN GALLERY */
.gallery{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.tile{position:relative;overflow:hidden;border-radius:4px;background:var(--ink3);aspect-ratio:3/4}
.tile.wide{grid-column:span 3}
.tile.tall{grid-column:span 2}
.tile.std{grid-column:span 2}
.tile image-slot{position:absolute;inset:0;width:100%;height:100%;transition:transform .7s var(--ease)}
.tile:hover image-slot{transform:scale(1.06)}
.tile .ov{position:absolute;inset:0;z-index:3;pointer-events:none;display:flex;flex-direction:column;justify-content:flex-end;
  padding:22px;background:linear-gradient(transparent 45%,rgba(11,11,12,.82))}
.tile .ov .num{font-family:"Anton";font-size:20px;color:var(--volt);line-height:1}
.tile .ov .ttl{font-family:"Anton";text-transform:uppercase;font-size:clamp(20px,1.8vw,30px);line-height:1.02;margin-top:6px}
.tile .ov .terr{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-d);margin-top:8px}

/* ============================================================ TECHNOLOGY (light) */
.tech{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(28px,3.4vw,56px)}
.tech .col{padding-top:30px;border-top:2px solid var(--ink)}
.tech .ic{width:54px;height:54px;color:var(--ink);margin-bottom:26px}
.tech .ic .v{color:var(--volt-ink)}
.tech h3{font-family:"Anton";text-transform:uppercase;font-size:28px;letter-spacing:.01em;margin-bottom:14px;line-height:1}
.tech p{font-size:16px;line-height:1.6;color:var(--muted-l)}
.tech .badge{display:inline-block;margin-top:18px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  background:var(--volt);color:var(--volt-ink);padding:5px 11px;border-radius:2px}

/* ============================================================ IN THE WORLD */
.world{display:grid;grid-template-columns:1.6fr 1fr;grid-template-rows:auto auto;gap:14px}
.world .wt{position:relative;overflow:hidden;border-radius:4px;background:var(--ink3)}
.world .wt.big{grid-row:1 / span 2;aspect-ratio:auto}
.world .wt.big image-slot{aspect-ratio:16/11}
.world .wt image-slot{display:block;width:100%}
.world .wt.s image-slot{aspect-ratio:16/7}
.world .wt .cap{position:absolute;left:0;bottom:0;right:0;z-index:3;pointer-events:none;padding:20px 22px;
  background:linear-gradient(transparent,rgba(11,11,12,.8))}
.world .wt .cap .k{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--volt)}
.world .wt .cap .v{font-size:18px;font-weight:600;margin-top:4px}

/* ============================================================ SOCIAL PROOF (light) */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2vw,28px)}
.qcard{background:var(--white);border:1px solid var(--line-l);border-radius:6px;padding:32px 30px;display:flex;flex-direction:column;gap:22px;
  transition:transform .3s var(--ease),box-shadow .3s}
.qcard:hover{transform:translateY(-6px);box-shadow:0 22px 50px rgba(11,11,12,.10)}
.qcard .mk{color:var(--volt-ink)}
.qcard blockquote{font-size:19px;line-height:1.5;font-weight:500;flex:1}
.qcard .who{display:flex;align-items:center;gap:14px}
.qcard .av{width:46px;height:46px;border-radius:50%;background:var(--ink);color:var(--volt);display:flex;align-items:center;justify-content:center;
  font-family:"Anton";font-size:18px;letter-spacing:.02em}
.qcard .who .nm{font-weight:700;font-size:15px}
.qcard .who .ro{font-size:13px;color:var(--muted-l)}

/* ============================================================ DROP SIGNUP (volt) */
.drop{background:var(--volt);color:var(--volt-ink);padding:clamp(64px,8vw,120px) var(--pad);position:relative;overflow:hidden}
.drop .smwm{position:absolute;right:-2%;top:50%;transform:translateY(-50%);color:var(--volt-ink);opacity:.12}
.drop .inner{position:relative;z-index:2;max-width:1000px}
.drop .ek{font-size:13px;font-weight:700;letter-spacing:.3em;text-transform:uppercase;margin-bottom:22px;opacity:.65}
.drop h2{font-size:clamp(42px,6vw,96px);line-height:.9;margin-bottom:34px;max-width:13ch}
.drop form{display:flex;gap:12px;max-width:560px;flex-wrap:wrap}
.drop input{flex:1;min-width:240px;background:transparent;border:2px solid var(--volt-ink);border-radius:2px;
  padding:16px 18px;font-size:16px;color:var(--volt-ink);font-weight:500}
.drop input::placeholder{color:rgba(11,11,12,.5)}
.drop input:focus{outline:none;background:rgba(11,11,12,.06)}
.drop .note{margin-top:18px;font-size:13px;font-weight:500;opacity:.6}

/* ============================================================ FOOTER */
.footer{background:var(--ink);padding:clamp(56px,6vw,88px) var(--pad) 40px}
.footer .top{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;padding-bottom:50px;border-bottom:1px solid var(--line-d)}
.footer .brand img{height:30px;margin-bottom:22px}
.footer .brand p{font-size:15px;line-height:1.6;color:var(--muted-d);max-width:300px;margin-bottom:24px}
.footer .socials{display:flex;gap:12px}
.footer .socials a{width:40px;height:40px;border:1px solid var(--line-d);border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--paper);transition:.2s}
.footer .socials a:hover{background:var(--volt);color:var(--volt-ink);border-color:var(--volt)}
.footer .col h4{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--volt);margin-bottom:18px}
.footer .col a{display:block;font-size:15px;color:var(--muted-d);padding:7px 0;transition:color .2s}
.footer .col a:hover{color:var(--paper)}
.footer .fine{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:28px;flex-wrap:wrap;
  font-size:13px;color:var(--muted-d);letter-spacing:.04em}
.footer .fine .sm{color:var(--paper)}

/* ============================================================ MOBILE BUY BAR */
.buybar-m{position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;align-items:center;justify-content:space-between;
  gap:14px;padding:12px 18px calc(12px + env(safe-area-inset-bottom));background:rgba(11,11,12,.94);
  backdrop-filter:blur(12px);border-top:1px solid var(--line-d);transform:translateY(120%);transition:transform .35s var(--ease)}
.buybar-m.show{transform:translateY(0)}
.buybar-m .pi .n{font-weight:700;font-size:14px}
.buybar-m .pi .p{font-size:13px;color:var(--muted-d)}
.buybar-m .btn{flex:1;justify-content:center;padding:13px 18px;max-width:200px}

/* ============================================================ REVEAL */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}

/* toast */
.toast{position:fixed;left:50%;bottom:32px;translate:-50% 0;z-index:200;background:var(--ink2);
  border:1px solid var(--volt);color:var(--paper);padding:15px 22px;border-radius:3px;font-size:15px;font-weight:500;
  display:flex;align-items:center;gap:12px;opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;transform:translateY(30px)}
.toast.show{opacity:1;transform:translateY(0)}
.toast .sm{color:var(--volt)}

/* ============================================================ RESPONSIVE */
@media(max-width:1080px){
  .hero{grid-template-columns:1fr;min-height:auto;gap:10px;padding-top:calc(var(--nav-h) + 40px)}
  .hero .shoebox{order:-1;margin-bottom:10px}
  .hero .shoebox img{width:88%;max-width:520px}
  .hero .price-flag{right:6%}
  .spot{grid-template-columns:1fr;gap:36px}
  .world{grid-template-columns:1fr}
  .world .wt.big{grid-row:auto}
  .tech{grid-template-columns:1fr;gap:36px}
  .quotes{grid-template-columns:1fr}
  .footer .top{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(4,1fr)}
  .tile.wide,.tile.tall,.tile.std{grid-column:span 2}
}
@media(max-width:680px){
  .nav .links{display:none}
  .nav .buy{display:none}
  .nav .burger{display:flex}
  .hero h1{font-size:clamp(46px,13vw,80px)}
  .specs{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:1fr 1fr}
  .tile.wide,.tile.tall,.tile.std{grid-column:span 1}
  .footer .top{grid-template-columns:1fr}
  .buybar-m{display:flex}
  body{padding-bottom:0}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ============================================================ CAMPAIGN CREW FEATURE */
.campaign{position:relative;min-height:80vh;display:flex;align-items:flex-end;overflow:hidden;
  padding:clamp(48px,7vw,96px) var(--pad)}
.campaign .cbg{position:absolute;inset:0}
.campaign .cbg img{width:100%;height:100%;object-fit:cover;object-position:center 26%}
.campaign .cscrim{position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(11,11,12,.94) 3%,rgba(11,11,12,.30) 42%,transparent 72%),
             linear-gradient(90deg,rgba(11,11,12,.62),transparent 56%)}
.campaign .cinner{position:relative;z-index:2;max-width:880px}
.campaign h2{font-size:clamp(40px,6.2vw,94px);margin:18px 0 22px}
.campaign .clead{font-size:clamp(16px,1.4vw,21px);line-height:1.6;color:var(--muted-d);max-width:640px}

/* ============================================================ THE KIT (merch) */
.kit{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.kt{position:relative;overflow:hidden;border-radius:4px;background:var(--ink3);aspect-ratio:4/5}
.kt.kt-banner{grid-column:1 / -1;aspect-ratio:24/7}
.kt img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.kt:hover img{transform:scale(1.05)}
.kt figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:22px 24px;display:flex;flex-direction:column;gap:5px;
  background:linear-gradient(transparent,rgba(11,11,12,.84))}
.kt .kk{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--volt)}
.kt .kn{font-family:"Anton";text-transform:uppercase;font-size:clamp(18px,1.5vw,26px);line-height:1.02}
@media(max-width:1080px){
  .campaign{min-height:62vh}
}
@media(max-width:680px){
  .kit{grid-template-columns:1fr 1fr}
  .kt{aspect-ratio:1/1}
  .kt.kt-banner{grid-column:1 / -1;aspect-ratio:16/9}
}