:root{
  --bg:#f5f5f7;
  --card:#FFFFFF;
  --ink:#1d1d1f;
  --mute:#6e6e73;
  --line:#d2d2d7;
  --blue:#0071e3;
  --blue-d:#0066cc;
  --r:28px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:60px}
body{font-family:-apple-system,BlinkMacSystemFont,'Inter','Segoe UI',sans-serif;background:var(--bg);color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2,h3{letter-spacing:-.02em;line-height:1.08;font-weight:700}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;height:52px;background:rgba(245,245,247,.8);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.stuck{border-color:rgba(0,0,0,.1)}
.nav-in{max-width:1080px;margin:0 auto;height:100%;padding:0 22px;display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:700;font-size:1.25rem;letter-spacing:-.03em}
.menu{display:flex;gap:2.4rem;font-size:.82rem}
.menu a{color:#424245;transition:color .2s}
.menu a:hover{color:#000}
.nav-r{display:flex;align-items:center;gap:1rem}
.burger{display:none;background:none;border:0;font-size:1.1rem;color:var(--ink);cursor:pointer}

/* buttons */
.pill{display:inline-flex;align-items:center;gap:.5rem;background:var(--blue);color:#fff;border:0;border-radius:980px;padding:.8rem 1.5rem;font:inherit;font-size:1.05rem;cursor:pointer;transition:background .2s,transform .2s}
.pill:hover{background:var(--blue-d)}
.pill:active{transform:scale(.97)}
.pill.sm{padding:.3rem .9rem;font-size:.8rem}
.link{color:var(--blue);font-size:1.15rem;display:inline-flex;align-items:center;gap:.4rem}
.link i{font-size:.7rem;transition:transform .25s}
.link:hover i{transform:translateX(4px)}
.link:hover{text-decoration:underline}

/* hero */
.hero{text-align:center;padding:110px 22px 0;overflow:hidden}
.kicker{color:#bf4800;font-size:0}
.hero .kicker{color:var(--mute);font-size:1.1rem;font-weight:600;margin-bottom:.4rem}
.hero h1{font-size:clamp(3rem,8vw,5.6rem);margin-bottom:.4rem}
.sub{font-size:clamp(1.3rem,3vw,1.9rem);color:var(--ink);font-weight:500;margin-bottom:1.4rem}
.hero-cta{display:flex;justify-content:center;align-items:center;gap:1.8rem;flex-wrap:wrap}
.from{margin-top:1rem;color:var(--mute);font-size:.95rem}
.hero-media{margin:3rem auto 0;max-width:1080px;border-radius:var(--r) var(--r) 0 0;overflow:hidden;height:min(60vw,560px)}
.hero-media img{width:100%;height:115%;object-fit:cover;object-position:center 60%;will-change:transform}

/* stats */
.stats{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;padding:6rem 22px;text-align:center}
.stat strong{display:block;font-size:clamp(2.8rem,6vw,4.5rem);letter-spacing:-.04em;line-height:1}
.stat small{font-size:.4em;font-weight:600;margin-left:.15em;color:var(--mute)}
.stat p{color:var(--mute);margin:.7rem auto 0;max-width:230px;font-size:1rem}

/* product */
.product{max-width:1080px;margin:0 auto;padding:2rem 22px 6rem}
.sec-head{text-align:center;margin-bottom:3.5rem}
.sec-head h2{font-size:clamp(2.2rem,5.5vw,3.8rem);margin-bottom:1.2rem}
.sec-head p{max-width:560px;margin:0 auto;color:var(--mute);font-size:1.2rem}
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tile{background:var(--card);border-radius:var(--r);padding:2.2rem;overflow:hidden;position:relative;transition:transform .4s,box-shadow .4s}
.tile:hover{transform:translateY(-4px);box-shadow:0 20px 40px -20px rgba(0,0,0,.18)}
.tile>i{font-size:1.6rem;color:var(--blue);margin-bottom:3.5rem;display:block}
.tile h3{font-size:1.5rem;margin-bottom:.6rem}
.tile p{color:var(--mute);font-size:1.02rem}
.tile .kicker{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--mute);margin-bottom:.6rem}
.tile.big{grid-column:span 3;display:grid;grid-template-columns:1fr 1fr;align-items:center;padding:0;min-height:420px}
.tile.big .tile-txt{padding:3rem}
.tile.big h3{font-size:clamp(2rem,4vw,3rem)}
.tile.big img{width:100%;height:100%;object-fit:cover}
.tile.img{grid-column:span 1;grid-row:span 1;padding:0;min-height:340px;color:#fff}
.tile.img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s}
.tile.img:hover img{transform:scale(1.05)}
.tile.img::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 40%,rgba(0,0,0,.65))}
.tile.img .cap{position:absolute;left:0;right:0;bottom:0;padding:1.8rem;z-index:2}
.tile.img .cap p{color:#e8e8ed}

/* band */
.band{background:var(--card);display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:4rem;padding:6rem max(22px,calc((100vw - 1080px)/2))}
.band-img{border-radius:var(--r);overflow:hidden;aspect-ratio:4/3.4}
.band-img img{width:100%;height:100%;object-fit:cover}
.band .kicker{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--mute);margin-bottom:.8rem}
.band h2{font-size:clamp(2.2rem,4.5vw,3.4rem);margin-bottom:1.8rem}
.band li{display:flex;gap:.8rem;margin-bottom:1rem;font-size:1.1rem;color:#424245}
.band li i{color:var(--blue);margin-top:.3rem}

/* specs */
.specs{max-width:1080px;margin:0 auto;padding:6rem 22px}
.specs h2{font-size:clamp(2rem,4.5vw,3rem);text-align:center;margin-bottom:3rem}
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.spec-grid div{padding:1.6rem 0;border-bottom:1px solid var(--line)}
.spec-grid dt{color:var(--mute);font-size:.9rem;margin-bottom:.2rem}
.spec-grid dd{font-size:1.35rem;font-weight:600;letter-spacing:-.01em}

/* buy */
.buy{padding:2rem 22px 6rem}
.buy-card{max-width:1000px;margin:0 auto;background:var(--card);border-radius:var(--r);display:grid;grid-template-columns:1fr 1fr;overflow:hidden}
.buy-card>img{width:100%;height:100%;object-fit:cover;min-height:380px}
.buy-info{padding:3rem}
.buy-info h2{font-size:2.2rem}
.price{font-size:1.6rem;font-weight:600;margin:.6rem 0 1.4rem}
.price small{font-size:.85rem;color:var(--mute);font-weight:400}
.perks{display:grid;gap:.7rem;color:#424245;margin-bottom:2rem}
.perks i{width:22px;color:var(--blue)}
.qty-row{display:flex;gap:1rem;align-items:center;flex-wrap:wrap}
.qty{display:flex;align-items:center;background:var(--bg);border-radius:980px;padding:.25rem}
.qty button{width:38px;height:38px;border-radius:50%;border:0;background:transparent;cursor:pointer;font-size:.8rem;transition:background .2s}
.qty button:hover{background:#e8e8ed}
.qty span{min-width:30px;text-align:center;font-weight:600}
.added{margin-top:1rem;color:#248a3d;font-weight:500;opacity:0;transform:translateY(6px);transition:.4s}
.added.show{opacity:1;transform:none}

/* faq */
.faq{max-width:760px;margin:0 auto;padding:2rem 22px 7rem}
.faq h2{font-size:clamp(2rem,4.5vw,3rem);text-align:center;margin-bottom:2.5rem}
details{border-bottom:1px solid var(--line)}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;padding:1.4rem 0;font-size:1.25rem;font-weight:600;letter-spacing:-.01em}
summary::-webkit-details-marker{display:none}
summary i{font-size:.9rem;color:var(--mute);transition:transform .3s}
details[open] summary i{transform:rotate(45deg)}
details p{padding:0 2rem 1.5rem 0;color:var(--mute);font-size:1.05rem;animation:open .4s}
@keyframes open{from{opacity:0;transform:translateY(-6px)}}

/* footer */
.foot{background:#fff;border-top:1px solid var(--line);padding:3rem 22px 2rem;color:var(--mute);font-size:.9rem}
.foot-in{max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1.5rem;padding-bottom:1.5rem;border-bottom:1px solid var(--line)}
.foot .logo{color:var(--ink);display:block;margin-bottom:.3rem}
.foot nav{display:flex;gap:2rem}
.foot nav a:hover{color:var(--ink)}
.copy{max-width:1080px;margin:1.2rem auto 0;font-size:.8rem}

/* reveal */
.reveal{opacity:0;transform:translateY(40px);transition:opacity 1s cubic-bezier(.2,.7,.2,1) var(--d,0s),transform 1s cubic-bezier(.2,.7,.2,1) var(--d,0s)}
.reveal.in{opacity:1;transform:none}

@media(max-width:900px){
  .bento{grid-template-columns:1fr 1fr}
  .tile.big{grid-column:span 2;grid-template-columns:1fr}
  .tile.big img{height:300px}
  .tile.img{grid-column:span 2}
  .band,.buy-card{grid-template-columns:1fr}
  .buy-card>img{min-height:280px;max-height:340px}
  .stats,.spec-grid{grid-template-columns:1fr}
  .stats{gap:3rem}
  .spec-grid div{display:flex;justify-content:space-between;align-items:center}
}
@media(max-width:700px){
  .burger{display:block}
  .menu{position:fixed;top:52px;left:0;right:0;flex-direction:column;gap:0;background:rgba(245,245,247,.98);padding:.5rem 22px 1rem;font-size:1.1rem;transform:translateY(-130%);transition:transform .4s;border-bottom:1px solid var(--line)}
  .menu.open{transform:none}
  .menu a{padding:.8rem 0;border-bottom:1px solid #e5e5ea}
  .bento{grid-template-columns:1fr}
  .tile.big,.tile.img{grid-column:auto}
  .tile.big .tile-txt{padding:2rem}
  .buy-info{padding:2rem}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}