/* Layout concept: mirrors the original Aetherion site — full-bleed photo hero, alternating white / black / slate bands,
   Montserrat black headlines with tight tracking, square buttons, scroll-reveal motion. */
:root{
  --black:#000; --white:#fff; --bg:#F9FAFB; --secondary:#F1F5F9; --accent:#F1F5F9;
  --muted:#64748B; --line:rgba(0,0,0,.1); --line-w:rgba(255,255,255,.1); --wa:#25D366;
  --f-head:"Montserrat", "Arial Black", Arial, sans-serif;
  --f-body:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --wrap:1280px; --ease:cubic-bezier(.22,1,.36,1);
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--white);color:var(--black);font-family:var(--f-head);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
:focus-visible{outline:2px solid currentColor;outline-offset:3px}
.sans{font-family:var(--f-body)}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
@media (min-width:640px){.wrap{padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}}
@media (min-width:1024px){.wrap{padding-left:max(32px,env(safe-area-inset-left,0px));padding-right:max(32px,env(safe-area-inset-right,0px))}}
.narrow{max-width:900px}
section{position:relative}
.py{padding-block:96px}
@media (min-width:768px){.py{padding-block:128px}}
.bg-white{background:var(--white);color:var(--black)}
.bg-black{background:var(--black);color:var(--white)}
.bg-secondary{background:var(--secondary);color:var(--black)}
.bg-page{background:var(--bg);color:var(--black)}
.border-t{border-top:1px solid var(--line)}
.center{text-align:center}

h1,h2,h3,h4{margin:0;font-family:var(--f-head);font-weight:900;letter-spacing:-.05em;line-height:1;text-transform:uppercase;text-wrap:balance}
p{margin:0}
.kicker{font-size:.875rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:rgba(0,0,0,.5);margin-bottom:16px;letter-spacing:.1em}
.bg-black .kicker{color:rgba(255,255,255,.5)}
.h-xl{font-size:clamp(2.25rem,8vw,8rem)}
.h-lg{font-size:clamp(2.25rem,5.5vw,3.75rem)}
.h-md{font-size:clamp(1.875rem,4.5vw,3.75rem)}
.lead{font-family:var(--f-body);font-size:clamp(1.0625rem,1.6vw,1.25rem);line-height:1.65}
.body{font-family:var(--f-body);font-size:clamp(1rem,1.3vw,1.125rem);line-height:1.7;color:rgba(0,0,0,.7)}
.bg-black .body{color:rgba(255,255,255,.6)}
.mute-w{color:rgba(255,255,255,.6)}
.mute{color:rgba(0,0,0,.6)}

/* buttons (square, tracking-widest) */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:var(--f-head);font-weight:700;letter-spacing:.1em;text-transform:uppercase;font-size:.875rem;padding:20px 32px;border:2px solid transparent;cursor:pointer;transition:background .3s,color .3s,border-color .3s,transform .3s;white-space:nowrap}
.btn-lg{font-size:1rem;padding:24px 40px}
@media (min-width:640px){.btn-lg{font-size:1.125rem;padding:30px 44px}}
.btn-white{background:var(--white);color:var(--black);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.btn-white:hover{background:var(--accent)}
.btn-outline{background:var(--white);color:var(--black);border-color:var(--black)}
.btn-outline:hover{background:var(--black);color:var(--white)}
.btn-black{background:var(--black);color:var(--white)}
.btn-black:hover{background:#262626}
.btn-wa{background:var(--wa);color:#fff}
.btn-wa:hover{background:#1ebe5b}
.btn-link{background:none;padding:0;border:0;color:var(--black);text-underline-offset:4px}
.btn-link:hover{text-decoration:underline;color:#475569}
.btn svg{width:18px;height:18px;flex:none}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* header: transparent over hero, black once scrolled */
.site-head{position:fixed;inset:0 0 auto 0;z-index:50;color:#fff;padding-top:env(safe-area-inset-top,0px);transition:background .3s,box-shadow .3s}
.site-head::before{content:"";position:absolute;inset:0;background:linear-gradient(to bottom,rgba(0,0,0,.7),transparent);z-index:-1;pointer-events:none;transition:opacity .3s}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:16px;transition:padding .3s}
.site-head.scrolled,.site-head.solid{background:#000;box-shadow:0 10px 15px -3px rgba(0,0,0,.25)}
.site-head.scrolled::before,.site-head.solid::before{opacity:0}
.site-head.scrolled .wrap{padding-block:12px}
.logo{display:flex;align-items:center;margin-right:16px;position:relative;z-index:2}
.logo img,.logo .wordmark{width:128px;transition:transform .3s}
@media (min-width:640px){.logo img,.logo .wordmark{width:160px}}
.logo:hover img,.logo:hover .wordmark{transform:scale(1.05)}
.wordmark{font-weight:400;letter-spacing:.42em;font-size:.95rem;white-space:nowrap}
.nav{display:flex;align-items:center;gap:40px}
.nav a{position:relative;font-size:.875rem;font-weight:700;letter-spacing:.1em;color:rgba(255,255,255,.7);transition:color .3s}
.nav a:hover,.nav a[aria-current="page"]{color:#fff}
.nav a::after{content:"";position:absolute;left:0;bottom:-8px;height:2px;width:0;background:#fff;transition:width .3s}
.nav a:hover::after,.nav a[aria-current="page"]::after{width:100%}
.head-tools{display:flex;align-items:center;gap:8px;position:relative;z-index:2}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:none;border:0;color:#fff;cursor:pointer;transition:color .3s}
.icon-btn:hover{color:#cbd5e1}
.icon-btn svg{width:22px;height:22px}
.menu-btn{display:none}
@media (max-width:767px){
  .menu-btn{display:inline-flex}
  .nav{position:fixed;inset:0;background:#000;flex-direction:column;justify-content:center;gap:32px;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;padding:max(16px,env(safe-area-inset-top,0px)) 24px}
  .nav.open{opacity:1;visibility:visible}
  .nav a{font-size:1.5rem;font-weight:900;letter-spacing:-.02em}
}

/* hero */
.hero{min-height:100vh;min-height:100svh;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#0a0a0a;color:#fff}
.hero.short{min-height:70vh}
.hero-bg{position:absolute;inset:0;background:radial-gradient(120% 80% at 70% 30%,#2b2f36 0%,#0a0a0a 60%)}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-bg.gray img{filter:grayscale(1)}
.hero-bg::after{content:"";position:absolute;inset:0;background:rgba(0,0,0,.6)}
.hero.short .hero-bg::after{background:rgba(0,0,0,.7)}
.hero-inner{position:relative;z-index:2;text-align:center;margin-top:80px;padding-block:40px}
.hero h1{margin-bottom:24px}
.grad{background:linear-gradient(to right,#fff,rgba(255,255,255,.5));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{color:rgba(255,255,255,.8);max-width:42rem;margin:0 auto 40px;font-size:clamp(1.125rem,2vw,1.5rem)}

/* flagship */
.two{display:grid;grid-template-columns:1fr;gap:64px;align-items:center}
@media (min-width:1024px){.two{grid-template-columns:1fr 1fr}}
.photo{position:relative;overflow:hidden;background:var(--secondary);display:flex;align-items:center;justify-content:center}
.photo > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.photo svg{width:62%;height:auto;max-height:88%}
.ar-45{aspect-ratio:4/5}
.ar-11{aspect-ratio:1/1}
.badge-box{position:absolute;right:-32px;bottom:-32px;background:#000;color:#fff;padding:32px;display:none}
.badge-box b{display:block;font-size:2.25rem;font-weight:900;letter-spacing:-.05em;line-height:1}
.badge-box span{font-size:.875rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.6)}
@media (min-width:768px){.badge-box{display:block}}
.num-list{list-style:none;padding:0;margin:0 0 40px;display:grid;gap:24px;font-family:var(--f-body)}
.num-list li{display:flex;align-items:flex-start;gap:16px}
.num{width:32px;height:32px;background:#000;color:#fff;display:flex;align-items:center;justify-content:center;flex:none;font-weight:700;font-family:var(--f-head);font-size:.875rem}
.num-list h4{font-family:var(--f-head);font-size:1.125rem;font-weight:700;letter-spacing:.025em;line-height:1.3}
.num-list p{color:rgba(0,0,0,.6)}

/* features grid */
.sec-head{text-align:center;margin-bottom:64px}
@media (min-width:768px){.sec-head{margin-bottom:80px}}
.sec-head .lead{max-width:42rem;margin:24px auto 0;color:rgba(255,255,255,.6)}
.features{display:grid;grid-template-columns:1fr;gap:48px 32px}
@media (min-width:768px){.features{grid-template-columns:1fr 1fr;row-gap:64px}}
@media (min-width:1024px){.features{grid-template-columns:repeat(3,1fr)}}
.feature .ic{width:64px;height:64px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;margin-bottom:24px;transition:background .3s,color .3s}
.feature:hover .ic{background:#fff;color:#000}
.feature .ic svg{width:32px;height:32px}
.feature h3{font-size:1.25rem;font-weight:700;letter-spacing:.025em;margin-bottom:12px;line-height:1.3}
.feature p{font-family:var(--f-body);color:rgba(255,255,255,.6);line-height:1.65}

/* heritage */
.heritage-img{height:400px}
@media (min-width:768px){.heritage-img{height:600px}}
.heritage-img img{filter:grayscale(1);transition:filter .7s}
.heritage-img:hover img{filter:grayscale(0)}

/* reviews */
.reviews{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.reviews{grid-template-columns:repeat(3,1fr)}}
.review{background:var(--secondary);border:1px solid rgba(0,0,0,.05);padding:32px;display:flex;flex-direction:column;margin:0}
@media (min-width:768px){.review{padding:40px}}
.stars{display:flex;gap:4px;margin-bottom:24px}
.stars svg{width:20px;height:20px}
.review blockquote{margin:0 0 32px;font-family:var(--f-body);font-style:italic;font-size:clamp(1rem,1.3vw,1.125rem);line-height:1.65}
.review .who{margin-top:auto}
.review .who b{display:block;font-weight:700;text-transform:uppercase;letter-spacing:.025em}
.review .who span{display:block;font-size:.875rem;color:rgba(0,0,0,.5);text-transform:uppercase;letter-spacing:.1em;margin-top:4px}
.review.invite{background:#000;color:#fff;justify-content:space-between;gap:24px}
.review.invite p{font-family:var(--f-body);color:rgba(255,255,255,.6)}

/* shop cards */
.page-top{padding-top:calc(128px + env(safe-area-inset-top,0px));padding-bottom:96px}
.shop-head{margin-bottom:64px}
.shop-head .lead{color:var(--muted);max-width:42rem;margin-top:16px}
.cards{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.cards{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.cards{grid-template-columns:repeat(4,1fr)}}
.card{display:flex;flex-direction:column;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.06),0 0 0 1px rgba(0,0,0,.04);transition:box-shadow .3s,transform .3s}
.card:hover{box-shadow:0 20px 25px -5px rgba(0,0,0,.12),0 8px 10px -6px rgba(0,0,0,.08);transform:translateY(-4px)}
.card .photo{height:256px;aspect-ratio:auto}
.card .photo > img{transition:transform .5s var(--ease)}
.card:hover .photo > img{transform:scale(1.06)}
.card .photo::after{content:"";position:absolute;inset:0;background:rgba(0,0,0,.08);transition:background .3s;z-index:1}
.card:hover .photo::after{background:rgba(0,0,0,.25)}
.pill{position:absolute;top:12px;z-index:2;font-size:.75rem;font-weight:700;padding:4px 12px;border-radius:999px}
.pill.l{left:12px;background:#000;color:#fff}
.pill.r{right:12px;background:#fff;color:#000;font-variant-numeric:tabular-nums}
.card .info{padding:16px;display:flex;flex-direction:column;gap:6px;flex:1}
.card h3{font-size:1.125rem;font-weight:700;letter-spacing:0;text-transform:none;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card p{font-family:var(--f-body);font-size:.875rem;color:var(--muted);min-height:2.5em}
.card .btn{margin-top:10px;padding:12px 16px;font-size:.8rem;border-radius:6px;letter-spacing:.05em}

/* product page */
.back{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-body);font-size:.9rem;color:var(--muted);margin-bottom:32px;transition:color .3s}
.back:hover{color:#000}
.product{display:grid;grid-template-columns:1fr;gap:48px;align-items:start}
@media (min-width:900px){.product{grid-template-columns:1fr 1fr;gap:64px}.product .photo{position:sticky;top:110px}}
.product .photo{border-radius:8px;box-shadow:0 10px 30px -10px rgba(0,0,0,.15)}
.p-series{font-size:.875rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:rgba(0,0,0,.5)}
.product h1{font-size:clamp(2.5rem,6vw,4.5rem);margin:12px 0 16px}
.p-tag{font-family:var(--f-body);font-size:1.25rem;color:rgba(0,0,0,.7)}
.p-price{font-size:2rem;font-weight:900;letter-spacing:-.03em;margin-top:24px;font-variant-numeric:tabular-nums}
.buy{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.qty{display:flex;align-items:center;border:2px solid #000}
.qty button{width:48px;height:100%;min-height:60px;background:none;border:0;font-size:1.25rem;cursor:pointer}
.qty button:hover{background:var(--secondary)}
.qty output{min-width:32px;text-align:center;font-weight:700}
.buy .btn{flex:1;min-width:220px}
.p-note{font-family:var(--f-body);font-size:.9rem;color:var(--muted);margin-top:14px}
.p-block{margin-top:48px}
.p-block h2{font-size:1rem;font-weight:700;letter-spacing:.1em;margin-bottom:16px}
.p-block .body p+p{margin-top:16px}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:12px;font-family:var(--f-body)}
.ticks li{display:flex;gap:12px;align-items:flex-start}
.ticks li::before{content:"";width:8px;height:8px;background:#000;flex:none;margin-top:.55em}
.specs{display:grid;grid-template-columns:minmax(110px,40%) 1fr;margin:0;border-top:1px solid var(--line);font-family:var(--f-body)}
.specs dt,.specs dd{margin:0;padding:14px 0;border-bottom:1px solid var(--line)}
.specs dt{font-family:var(--f-head);font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:rgba(0,0,0,.5);padding-right:16px;padding-top:16px}

/* about */
.about-lead{font-family:var(--f-body);font-size:clamp(1.5rem,3vw,1.875rem);line-height:1.6;font-weight:500;margin-bottom:40px}
.banner{height:50vh;min-height:280px;background:#111}
.banner img{width:100%;height:100%;object-fit:cover}
.pillars{display:grid;grid-template-columns:1fr;gap:64px}
@media (min-width:768px){.pillars{grid-template-columns:repeat(3,1fr)}}
.pillars > div{border-top:1px solid rgba(255,255,255,.2);padding-top:32px}
.pillars h3{font-size:1.5rem;margin-bottom:16px}
.pillars p{font-family:var(--f-body);color:rgba(255,255,255,.6);line-height:1.65}

/* contact */
.contact{display:grid;grid-template-columns:1fr;gap:64px}
@media (min-width:1024px){.contact{grid-template-columns:1fr 1fr}}
.contact .lead{color:var(--muted);margin:24px 0 48px;max-width:32rem}
.c-item{margin-bottom:28px}
.c-item span{display:block;font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:6px}
.c-item b{font-family:var(--f-body);font-weight:400;user-select:all;word-break:break-word}
.form-card{background:var(--secondary);padding:40px}
.form-card h2{font-size:1.25rem;letter-spacing:-.02em;margin-bottom:32px}
.field{display:grid;gap:8px;margin-bottom:24px}
.field label{font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.field input,.field textarea,.field select{font:inherit;font-family:var(--f-body);width:100%;border:1px solid #CBD5E1;background:#fff;padding:12px 14px;border-radius:0;color:#000}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid #000;outline-offset:0}
.form-card .btn{width:100%}
.form-note{font-family:var(--f-body);font-size:.85rem;color:var(--muted);margin-top:14px}

/* faq + policy pages */
.faq{max-width:860px}
.faq h2{font-size:.875rem;font-weight:700;letter-spacing:.1em;color:rgba(0,0,0,.5);margin:56px 0 8px}
.faq h2:first-child{margin-top:0}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:24px 44px 24px 0;position:relative;font-weight:700;font-size:1.125rem;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:18px;font-size:1.6rem;font-weight:400;transition:transform .3s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{font-family:var(--f-body);color:rgba(0,0,0,.7);line-height:1.7;padding-bottom:24px;max-width:68ch}
.doc{max-width:760px;font-family:var(--f-body)}
.doc h2{font-family:var(--f-head);font-size:1.25rem;letter-spacing:-.02em;margin:48px 0 14px}
.doc h2:first-of-type{margin-top:24px}
.doc p,.doc li{color:rgba(0,0,0,.75);line-height:1.75}
.doc p+p{margin-top:14px}
.doc ul{padding-left:20px;margin:12px 0 0;display:grid;gap:8px}
.doc a{text-decoration:underline}
.updated{font-size:.85rem;color:var(--muted)}

/* footer */
.site-foot{background:#000;color:#fff;padding-block:96px 32px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:64px;margin-bottom:80px}
@media (min-width:768px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.foot-grid{grid-template-columns:repeat(4,1fr)}}
.foot-brand{font-size:1.875rem;font-weight:900;letter-spacing:-.05em;text-transform:uppercase;display:block;margin-bottom:24px;line-height:1.1}
.foot-grid p{font-family:var(--f-body);color:rgba(255,255,255,.6);line-height:1.65}
.foot-grid h3{font-size:.875rem;font-weight:700;letter-spacing:.1em;color:rgba(255,255,255,.4);margin-bottom:24px}
.foot-links{display:flex;flex-direction:column;gap:16px}
.foot-links a{font-weight:700;text-transform:uppercase;letter-spacing:.05em;transition:color .3s}
.foot-links a:hover{color:#cbd5e1}
.foot-contact{display:flex;flex-direction:column;gap:16px;font-family:var(--f-body);color:rgba(255,255,255,.8);word-break:break-word}
.foot-base{border-top:1px solid var(--line-w);padding-top:32px;display:flex;flex-direction:column;gap:16px;justify-content:space-between;align-items:center;font-family:var(--f-body);font-size:.875rem;color:rgba(255,255,255,.4);text-align:center}
@media (min-width:768px){.foot-base{flex-direction:row;text-align:left}}
.foot-base a:hover{color:#fff}
.foot-base .links{display:flex;gap:24px}
.todo{background:#FDE047;color:#000;padding:1px 6px}

/* floating WhatsApp */
.wa-float{position:fixed;right:calc(24px + env(safe-area-inset-right,0px));bottom:calc(24px + env(safe-area-inset-bottom,0px));z-index:40;width:56px;height:56px;border-radius:50%;background:var(--wa);display:flex;align-items:center;justify-content:center;box-shadow:0 10px 25px rgba(0,0,0,.25);transition:transform .3s}
.wa-float:hover{transform:scale(1.1)}
.wa-float svg{width:28px;height:28px}

/* ---------- scroll-reveal motion (matches the original site's fade/slide-ins) ---------- */
.js [data-a]{opacity:0;transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0ms);will-change:opacity,transform}
.js [data-a="up"]{transform:translateY(30px)}
.js [data-a="up20"]{transform:translateY(20px)}
.js [data-a="up50"]{transform:translateY(50px)}
.js [data-a="left"]{transform:translateX(-50px)}
.js [data-a="right"]{transform:translateX(50px)}
.js [data-a="scale"]{transform:scale(.95)}
.js [data-a].in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js [data-a]{opacity:1;transform:none;transition:none}
  *{transition:none!important}
}
.heritage-img svg,.banner svg{width:auto;height:84%;max-height:none}
.card .btn{margin-top:auto}
.card .info p{margin-bottom:10px}
.photo.prod{background:#fff}
.photo.prod > img{object-fit:contain;padding:4%}
.card .photo.prod > img{padding:8px}
.hero-bg img{object-position:center 42%}
.logo img{height:auto}
.heritage-img img{object-position:center 40%}
.card .photo.prod::after{background:transparent}
.card:hover .photo.prod::after{background:rgba(0,0,0,.08)}
.two .photo.prod,.product .photo.prod{border:1px solid #E2E8F0}