/* ===== Skincare NYC — Opal & Diamond design system ===== */
:root{
  --pearl:#faf8f6; --blush:#f7e9ef; --aqua:#e6f3f0; --lilac:#efeafb; --gold:#f6efe1;
  --ink:#2b2733; --muted:#6f6878; --line:rgba(43,39,51,.12);
  --rose:#b98aa0; --rose-deep:#7d5266;
  --serif:'Cormorant Garamond',Georgia,serif; --sans:'Inter',system-ui,sans-serif;
  --wrap:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);font-weight:300;line-height:1.7;background:#faf8f6;overflow-x:hidden;overflow-wrap:break-word}
a{color:inherit}
img{max-width:100%;display:block}

/* opal backdrop */
.opal{position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(120% 90% at 12% 8%, var(--blush) 0%, transparent 45%),
    radial-gradient(120% 90% at 88% 0%, var(--lilac) 0%, transparent 42%),
    radial-gradient(140% 120% at 78% 88%, var(--aqua) 0%, transparent 50%),
    radial-gradient(120% 100% at 22% 100%, var(--gold) 0%, transparent 46%),
    var(--pearl);
  background-size:200% 200%,200% 200%,200% 200%,200% 200%,100% 100%;
  animation:opalDrift 34s ease-in-out infinite alternate}
@keyframes opalDrift{0%{background-position:0% 0%,100% 0%,100% 100%,0% 100%,0 0}100%{background-position:30% 20%,70% 18%,72% 80%,18% 78%,0 0}}
.sparkles{position:fixed;inset:0;z-index:-1;pointer-events:none}
.glint{position:absolute;width:6px;height:6px;opacity:0;transform:rotate(45deg);
  background:radial-gradient(circle at 50% 50%, #fff 0%, rgba(255,255,255,.85) 30%, rgba(206,193,232,.4) 60%, transparent 72%);
  box-shadow:0 0 6px 1px rgba(255,255,255,.7);animation:twinkle var(--d,5s) ease-in-out var(--delay,0s) infinite}
@keyframes twinkle{0%,100%{opacity:0;transform:rotate(45deg) scale(.4)}50%{opacity:var(--max,.9);transform:rotate(45deg) scale(1)}}

/* shimmering page frame */
@property --shineang{syntax:'<angle>';inherits:false;initial-value:0deg}
.frame{position:fixed;inset:0;z-index:9;pointer-events:none;padding:2px;
  background:conic-gradient(from var(--shineang),rgba(185,138,160,0) 0deg,rgba(206,193,232,.95) 60deg,rgba(230,243,240,.15) 120deg,rgba(246,239,225,.95) 200deg,rgba(185,138,160,.15) 280deg,rgba(185,138,160,0) 360deg);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);mask-composite:exclude;
  opacity:.9;animation:spinang 9s linear infinite}
@keyframes spinang{to{--shineang:360deg}}

/* 3d crystal */
.gem-stage{perspective:760px;display:flex;justify-content:center}
.gem-spin{animation:spin3d 9s ease-in-out infinite;transform-style:preserve-3d}
@keyframes spin3d{0%,100%{transform:rotateY(-22deg) rotateX(4deg)}50%{transform:rotateY(22deg) rotateX(-4deg)}}
.gem{height:auto;animation:gemfloat 6s ease-in-out infinite;filter:drop-shadow(0 14px 26px rgba(125,82,102,.28))}
@keyframes gemfloat{50%{transform:translateY(-12px)}}
.gem .facet{stroke:rgba(255,255,255,.65);stroke-width:.5}
.gem .shine{fill:#fff;transform-box:fill-box;transform-origin:center;animation:sweep 4.6s ease-in-out infinite}
@keyframes sweep{0%{transform:translateX(-90px) rotate(18deg);opacity:0}35%{opacity:.9}55%{transform:translateX(60px) rotate(18deg);opacity:.55}100%{transform:translateX(150px) rotate(18deg);opacity:0}}
.gem .spark{fill:#fff;transform-box:fill-box;transform-origin:center;animation:sparkstar 2.8s ease-in-out infinite}
@keyframes sparkstar{0%,100%{opacity:0;transform:scale(.2) rotate(0deg)}50%{opacity:1;transform:scale(1) rotate(45deg)}}
/* small inline crystal accent (dividers/bullets) */
.dia{display:inline-block;width:.7em;height:.7em;transform:rotate(45deg);vertical-align:middle;
  background:linear-gradient(135deg,#fff,var(--lilac) 55%,var(--aqua));box-shadow:0 0 5px rgba(206,193,232,.8);border-radius:1px}

/* layout */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
header.site{position:sticky;top:0;z-index:10;backdrop-filter:blur(10px);background:rgba(250,248,246,.55);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{font-family:var(--serif);font-size:24px;font-weight:600;letter-spacing:.5px;text-decoration:none;color:var(--ink)}
.brand span{color:var(--rose-deep)}
.nav ul{display:flex;gap:28px;list-style:none}
.nav a{color:var(--ink);text-decoration:none;font-size:14px;letter-spacing:.3px;transition:color .2s}
.nav a:hover,.nav a.active{color:var(--rose-deep)}
.hamb{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px;background:none;border:none}
.hamb span{display:block;width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.navtoggle:checked ~ .hamb span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.navtoggle:checked ~ .hamb span:nth-child(2){opacity:0}
.navtoggle:checked ~ .hamb span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.btn{display:inline-block;border-radius:40px;padding:13px 26px;font-size:14px;letter-spacing:.4px;text-decoration:none;transition:transform .2s,box-shadow .2s;font-weight:400;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(120deg,var(--rose),var(--rose-deep));color:#fff;box-shadow:0 8px 22px -8px rgba(125,82,102,.6)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px -10px rgba(125,82,102,.7)}
.btn-ghost{border:1px solid var(--line);color:var(--ink);background:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.8)}

/* hero */
.hero{text-align:center;padding:80px 0 70px}
.hero .gem-stage{margin-bottom:30px}
.eyebrow{font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--rose-deep);margin-bottom:22px}
.hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(40px,6vw,72px);line-height:1.05;letter-spacing:.5px}
.hero h1 em{font-style:italic;color:var(--rose-deep)}
.hero p.lead{max-width:600px;margin:24px auto 36px;font-size:18px;color:var(--muted)}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.tagline{font-family:var(--serif);font-style:italic;font-size:20px;color:var(--rose-deep);margin-top:54px}

/* sections */
section.block{padding:64px 0}
.sec-head{text-align:center;max-width:640px;margin:0 auto 44px}
.sec-head h2{font-family:var(--serif);font-weight:500;font-size:clamp(28px,4vw,44px);letter-spacing:.4px}
.sec-head p{color:var(--muted);margin-top:12px;font-size:16px}
.grid{display:grid;gap:20px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:rgba(255,255,255,.55);border:1px solid var(--line);border-radius:18px;padding:30px 26px;text-decoration:none;color:var(--ink);transition:transform .25s,box-shadow .25s,background .25s;backdrop-filter:blur(6px)}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -18px rgba(125,82,102,.35);background:rgba(255,255,255,.78)}
.card .ico{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:22px;color:var(--rose-deep);background:linear-gradient(135deg,var(--blush),var(--aqua));margin-bottom:18px}
.card h3{font-family:var(--serif);font-size:23px;font-weight:600;margin-bottom:8px}
.card p{font-size:14.5px;color:var(--muted)}
.card .more{display:inline-block;margin-top:16px;font-size:13px;letter-spacing:.5px;color:var(--rose-deep)}
.treat{background:rgba(255,255,255,.5);border:1px solid var(--line);border-radius:18px;overflow:hidden;text-decoration:none;color:var(--ink);transition:transform .25s,box-shadow .25s;display:block}
.treat:hover{transform:translateY(-4px);box-shadow:0 18px 40px -18px rgba(125,82,102,.4)}
.treat .tband{height:6px;background:linear-gradient(120deg,var(--rose),var(--lilac),var(--aqua))}
.treat .tin{padding:28px 26px}
.treat h3{font-family:var(--serif);font-size:24px;font-weight:600;margin-bottom:6px}
.treat p{font-size:14.5px;color:var(--muted)}
.treat .book{display:inline-block;margin-top:18px;font-size:13px;letter-spacing:.5px;color:var(--rose-deep)}
.brands{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.chip{padding:10px 22px;border:1px solid var(--line);border-radius:40px;font-family:var(--serif);font-size:18px;background:rgba(255,255,255,.45);letter-spacing:1px}

/* cta band */
.band{margin:40px 0;text-align:center;padding:72px 24px;border-radius:28px;border:1px solid var(--line);
  background:radial-gradient(120% 140% at 50% 0%, rgba(247,233,239,.9), rgba(230,243,240,.75))}
.band h2{font-family:var(--serif);font-weight:500;font-size:clamp(28px,4vw,46px)}
.band p{color:var(--muted);max-width:520px;margin:14px auto 30px}

/* breadcrumb + article */
.crumb{font-size:13px;color:var(--muted);padding:26px 0 0}
.crumb a{text-decoration:none;color:var(--rose-deep)}
.article{max-width:780px;margin:0 auto;padding:10px 0 30px}
.article .eyebrow{text-align:left}
.article h1{font-family:var(--serif);font-weight:500;font-size:clamp(34px,5vw,56px);line-height:1.08;margin:10px 0 18px}
.article .sub{font-size:19px;color:var(--muted);margin-bottom:28px}
.article h2{font-family:var(--serif);font-weight:500;font-size:30px;margin:42px 0 14px;letter-spacing:.3px}
.article h3{font-family:var(--serif);font-weight:600;font-size:22px;margin:28px 0 10px}
.article p{font-size:16.5px;margin-bottom:18px;color:var(--ink)}
.article ul{margin:0 0 20px 0;padding-left:0;list-style:none}
.article li{position:relative;padding-left:26px;margin-bottom:10px;font-size:16.5px}
.article li::before{content:"";position:absolute;left:0;top:.5em;width:9px;height:9px;transform:rotate(45deg);background:linear-gradient(135deg,#fff,var(--lilac),var(--aqua));box-shadow:0 0 4px rgba(206,193,232,.8)}
.factbox{background:rgba(255,255,255,.6);border:1px solid var(--line);border-radius:18px;padding:24px 26px;margin:26px 0}
.factbox h3{font-family:var(--serif);font-size:20px;margin:0 0 12px}
.factrow{display:flex;justify-content:space-between;gap:16px;padding:8px 0;border-bottom:1px solid var(--line);font-size:15px}
.factrow:last-child{border-bottom:none}
.factrow span:first-child{color:var(--muted)}
.inlinecta{background:radial-gradient(130% 160% at 50% 0%, rgba(247,233,239,.9), rgba(239,234,251,.7));border:1px solid var(--line);border-radius:20px;padding:34px 30px;text-align:center;margin:36px 0}
.inlinecta h3{font-family:var(--serif);font-weight:500;font-size:27px;margin-bottom:8px}
.inlinecta p{color:var(--muted);margin-bottom:22px}
details.faq{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.5);margin-bottom:12px;overflow:hidden}
details.faq summary{cursor:pointer;list-style:none;padding:18px 22px;font-family:var(--serif);font-size:19px;display:flex;justify-content:space-between;align-items:center}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-size:22px;color:var(--rose-deep)}
details.faq[open] summary::after{content:"\2212"}
details.faq .ans{padding:0 22px 20px;color:var(--muted);font-size:16px}

/* shop + product */
.shop-filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:6px 0 0}
.filter-btn{font-family:var(--sans);font-size:13px;letter-spacing:.3px;padding:9px 18px;border-radius:30px;border:1px solid var(--line);background:rgba(255,255,255,.45);color:var(--ink);cursor:pointer;transition:.2s}
.filter-btn:hover{background:rgba(255,255,255,.8)}
.filter-btn.active{background:linear-gradient(120deg,var(--rose),var(--rose-deep));color:#fff;border-color:transparent}
.prod-card{display:flex;flex-direction:column;padding:16px}
.prod-thumb{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:12px;background:rgba(255,255,255,.5);margin-bottom:14px}
.prod-brand{font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--rose-deep);margin-bottom:4px}
.prod-card h3{font-family:var(--serif);font-weight:600;line-height:1.3}
.product{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:14px 0 20px;align-items:start}
.product-media img{width:100%;border-radius:20px;border:1px solid var(--line);background:rgba(255,255,255,.5)}
.product-noimg{display:flex;justify-content:center;align-items:center;min-height:320px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.4)}
.product-info h1{font-family:var(--serif);font-weight:500;font-size:clamp(28px,4vw,42px);line-height:1.1;margin:6px 0 14px}
.prod-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.chip-sm{font-size:12px;padding:5px 13px;border:1px solid var(--line);border-radius:30px;background:rgba(255,255,255,.5);color:var(--muted)}
.prod-body{font-size:16px;color:var(--ink)}
.prod-body p{margin-bottom:14px}
.prod-body ul{margin:0 0 14px 20px}
.prod-body li{margin-bottom:6px}
/* footer */
footer.site{margin-top:50px;border-top:1px solid var(--line);background:rgba(250,248,246,.6)}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding:54px 0 30px}
.foot .brand{margin-bottom:14px;display:inline-block}
.foot p,.foot a{font-size:14px;color:var(--muted);text-decoration:none;line-height:2}
.foot a:hover{color:var(--rose-deep)}
.foot h4{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink);margin-bottom:12px}
.copy{text-align:center;font-size:12.5px;color:var(--muted);padding:22px 0;border-top:1px solid var(--line)}
.preview-flag{position:fixed;bottom:14px;left:14px;z-index:50;background:var(--ink);color:#fff;font-size:11px;letter-spacing:.5px;padding:7px 13px;border-radius:30px;opacity:.8;text-decoration:none}

@media (prefers-reduced-motion:reduce){.opal,.glint,.frame,.gem-spin,.gem,.gem .shine,.gem .spark{animation:none}.glint{opacity:.25}.gem .spark{opacity:.9}}
@media(max-width:860px){
  .wrap{padding:0 18px}
  .nav{justify-content:flex-start;flex-wrap:wrap}
  .brand{margin-right:auto}
  .hamb{display:flex;order:3;margin-left:12px}
  .book-cta{order:2;padding:10px 18px;font-size:13px}
  .nav ul{display:none;order:4;width:100%;flex-direction:column;gap:0;padding:6px 0 2px;margin-top:6px;border-top:1px solid var(--line)}
  .navtoggle:checked ~ ul{display:flex}
  .nav ul li{border-bottom:1px solid var(--line)}
  .nav ul a{display:block;padding:14px 4px;font-size:15px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr;gap:22px;padding:42px 0 24px}
  .product{grid-template-columns:1fr;gap:24px}
  .hero{padding:52px 0 42px}
  section.block{padding:44px 0}
  .band{padding:50px 20px}
  .inlinecta{padding:28px 20px}
  .article h1{font-size:clamp(28px,8vw,38px)}
  .copy{font-size:12px}
}
@media(max-width:430px){.g4{grid-template-columns:1fr}}