/* Silver Lane · concept store by Brand Evolution */
:root{
  --night:#0E0F11;
  --char:#16181B;
  --char-2:#1E2125;
  --silver:#E7E9EC;
  --silver-2:#B9BEC5;
  --muted:#A1A7AF;
  --rose:#FF5C8A;
  --rose-dk:#E64375;
  --line:rgba(231,233,236,.14);
  --display:"Cormorant Garamond", "Cormorant", Georgia, serif;
  --body:"DM Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --gutter:clamp(16px,4vw,56px);
  --ease:cubic-bezier(.2,.8,.2,1);
  --metal:linear-gradient(100deg,#8E949B 0%,#F4F6F8 22%,#A9AFB6 40%,#FFFFFF 52%,#7D838A 70%,#D9DDE2 86%,#9AA0A7 100%);
  /* shop tokens */
  --cs-bg:var(--char);--cs-fg:var(--silver);--cs-muted:var(--muted);--cs-line:var(--line);
  --cs-accent:var(--rose);--cs-accent-fg:#1A0A10;--cs-display:var(--display);--cs-radius:14px;
  --cs-card:radial-gradient(120% 90% at 50% 38%,#2C3036 0%,#191B1F 58%,#111214 100%);
  --cs-heart-bg:rgba(14,15,17,.6);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;background:var(--night)}
body{margin:0;background:var(--night);color:var(--silver);font-family:var(--body);font-size:16.5px;line-height:1.6;overflow-x:hidden}
svg{display:block}
a{color:inherit}
p{margin:0}
h1,h2,h3{margin:0}
em{font-family:var(--display);font-style:italic;font-weight:500}
:focus-visible{outline:2px solid var(--rose);outline-offset:3px;border-radius:6px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;z-index:200;background:var(--silver);color:var(--night);padding:10px 14px;border-radius:8px}
.skip:focus{left:8px}
button{font:inherit;color:inherit}

.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;border:0;cursor:pointer;transition:transform .35s var(--ease),background .3s,box-shadow .3s,color .3s}
.btn-solid{background:var(--rose);color:#1A0A10}
.btn-solid:hover{background:#FF7AA0;transform:translateY(-2px)}
.btn-line{box-shadow:inset 0 0 0 1.5px rgba(231,233,236,.4);color:var(--silver)}
.btn-line:hover{box-shadow:inset 0 0 0 1.5px var(--silver);transform:translateY(-2px)}

/* NAV */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px var(--gutter);transition:background .35s,box-shadow .35s,padding .35s}
.nav.solid{background:rgba(14,15,17,.72);backdrop-filter:blur(16px) saturate(1.3);-webkit-backdrop-filter:blur(16px) saturate(1.3);box-shadow:0 1px 0 var(--line);padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--display);font-weight:600;font-size:25px;letter-spacing:.01em}
.brand svg{width:30px;height:30px;color:var(--silver)}
.brand em{color:var(--rose)}
.nav nav{display:flex;gap:28px;font-size:14.5px;font-weight:500}
.nav nav a{text-decoration:none;opacity:.78}
.nav nav a:hover{opacity:1}
.nav-icons{display:flex;gap:6px}
.icon-btn{position:relative;width:44px;height:44px;border:0;background:transparent;border-radius:50%;display:grid;place-items:center;cursor:pointer;transition:background .2s}
.icon-btn:hover{background:var(--line)}
.icon-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round}
.count{position:absolute;right:3px;top:3px;min-width:18px;height:18px;padding:0 4px;border-radius:9px;background:var(--rose);color:#1A0A10;font-size:11px;font-weight:700;display:grid;place-items:center;line-height:1}
.count.zero{display:none}
@media (max-width:860px){.nav nav{display:none}}

/* HERO */
.hero{position:relative;min-height:100vh;padding:92px var(--gutter) 0;display:flex;flex-direction:column;overflow:hidden;background:radial-gradient(70% 60% at 72% 42%,#23262B 0%,rgba(14,15,17,0) 70%),var(--night)}
.hero-grid{flex:1;display:grid;grid-template-columns:minmax(300px,.9fr) 1.1fr;gap:clamp(24px,4vw,64px);align-items:center}
.hero-copy{display:flex;flex-direction:column;gap:20px;min-width:0;padding-bottom:20px}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.pip{width:7px;height:7px;border-radius:50%;background:var(--rose);box-shadow:0 0 12px var(--rose)}
.hero h1{font-family:var(--display);font-weight:600;font-size:clamp(46px,5.6vw,92px);line-height:.95;letter-spacing:-.01em}
.hero h1 em{background:var(--metal);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:sheen 6s linear infinite}
@keyframes sheen{to{background-position:-200% 0}}
.lede{font-size:clamp(16px,1.25vw,18.5px);color:var(--muted);max-width:44ch}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}

.switches{display:flex;flex-direction:column;gap:10px}
.switch{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.sw-label{font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);min-width:120px}
.switch button{display:inline-flex;align-items:center;gap:7px;border:0;background:transparent;box-shadow:inset 0 0 0 1px var(--line);padding:8px 13px;border-radius:999px;font-size:13.5px;font-weight:500;cursor:pointer;transition:background .25s,box-shadow .25s,color .25s}
.switch button:hover{box-shadow:inset 0 0 0 1px var(--silver-2)}
.switch button[aria-pressed="true"]{background:var(--silver);color:var(--night);box-shadow:none}
.fin{width:12px;height:12px;border-radius:50%;display:inline-block}
.f0{background:linear-gradient(135deg,#fff,#9aa0a7 55%,#e9ecef)}
.f1{background:linear-gradient(135deg,#a3a7ac,#2e3034 55%,#77797d)}
.f2{background:linear-gradient(135deg,#fff1c9,#c4973f 55%,#f2d58f)}

.float-card{display:grid;grid-template-columns:84px 1fr auto;gap:14px;align-items:center;background:rgba(30,33,37,.78);border:1px solid var(--line);border-radius:18px;padding:10px 14px 10px 10px;max-width:470px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 24px 60px -30px rgba(0,0,0,.8)}
.fc-art{width:84px;aspect-ratio:1;border-radius:12px;overflow:hidden;background:var(--cs-card)}
.fc-art svg{width:100%;height:100%}
.fc-body{min-width:0}
.fc-no{font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--rose)}
.fc-name{font-family:var(--display);font-size:22px;font-weight:600;line-height:1.05}
.fc-var{font-size:12.5px;color:var(--muted)}
.fc-price{font-weight:700;font-size:15px;font-variant-numeric:tabular-nums}
.fc-actions{display:flex;flex-direction:column;gap:6px;align-items:stretch}
.fc-add{border:0;background:var(--silver);color:var(--night);font-weight:600;font-size:13px;padding:9px 14px;border-radius:999px;cursor:pointer;transition:background .25s}
.fc-add:hover{background:var(--rose)}
.fc-heart{position:static;width:36px;height:36px;align-self:center;background:transparent;box-shadow:inset 0 0 0 1px var(--line)}
.float-card.swap .fc-body,.float-card.swap .fc-art{animation:fcSwap .5s var(--ease)}
@keyframes fcSwap{from{opacity:.2;transform:translateY(5px)}to{opacity:1;transform:none}}

/* turntable stage: the object is fitted inside with margin, so it never leaves this box */
.stage{position:relative;height:min(68vh,640px);min-height:380px;border-radius:28px;overflow:hidden;background:radial-gradient(60% 55% at 50% 45%,#2A2E34 0%,#17191C 65%,#0F1012 100%);box-shadow:inset 0 0 0 1px var(--line);touch-action:pan-y;cursor:grab}
.stage.drag{cursor:grabbing}
.stage::after{content:"";position:absolute;left:12%;right:12%;bottom:10%;height:16%;background:radial-gradient(closest-side,rgba(0,0,0,.55),transparent);pointer-events:none}
.gl{position:absolute;inset:0;width:100%;height:100%;opacity:0;transition:opacity .9s ease;z-index:1}
.stage.gl-ready .gl{opacity:1}
.stage-fallback{position:absolute;inset:8% 18% 14%;display:grid;place-items:center;transition:opacity .7s ease}
.stage-fallback svg{width:100%;height:100%}
.stage.gl-ready .stage-fallback{opacity:0}
.js .stage-fallback{animation:floaty 5s ease-in-out infinite}
@keyframes floaty{50%{transform:translateY(-8px) rotate(-1.5deg)}}
.stage-hint{position:absolute;left:18px;bottom:16px;z-index:2;font-size:12px;font-weight:500;color:var(--muted);display:flex;align-items:center;gap:8px;pointer-events:none}
.hint-dot{width:6px;height:6px;border-radius:50%;background:var(--rose);animation:blink 1.6s infinite}
@keyframes blink{50%{opacity:.25}}
.stage-tag{position:absolute;right:18px;top:16px;z-index:2;font-size:11.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);pointer-events:none}
.stage-tag span{color:var(--silver);border:1px solid var(--line);padding:3px 7px;border-radius:6px;margin-right:6px}

.wordmark{font-family:var(--display);font-weight:600;font-style:italic;font-size:15.2vw;line-height:.78;letter-spacing:-.03em;white-space:nowrap;text-align:center;margin:18px calc(var(--gutter) * -1) 0;padding-bottom:.05em;background:var(--metal);background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.9;user-select:none;will-change:background-position}

@media (max-width:900px){
  .hero{padding-top:80px}
  .hero-grid{grid-template-columns:1fr}
  .stage{order:-1;height:58vh;min-height:320px}
  .float-card{max-width:none}
  .sw-label{min-width:0;width:100%}
}
@media (max-width:480px){
  .stage{height:46vh;min-height:300px}
  .float-card{grid-template-columns:64px 1fr;padding:10px}
  .fc-art{width:64px}
  .fc-actions{grid-column:1/-1;flex-direction:row}
  .fc-add{flex:1}
}

/* STRIP */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;padding:14px 0;font-size:13.5px;font-weight:500;letter-spacing:.06em;color:var(--silver-2)}
.strip-in{display:flex;gap:26px;width:max-content;animation:tick 44s linear infinite}
.strip i{font-style:normal;color:var(--rose)}
@keyframes tick{to{transform:translateX(-50%)}}

/* SECTIONS */
.sec-head{display:grid;grid-template-columns:auto 1fr;gap:6px 20px;align-items:end;margin-bottom:clamp(26px,4vw,48px)}
.sec-no{font-family:var(--display);font-style:italic;font-size:22px;color:var(--rose);padding-bottom:.4em}
.sec-head h2,.hallmark h2{font-family:var(--display);font-weight:600;font-size:clamp(44px,6.6vw,100px);line-height:.95;letter-spacing:-.01em}
.sec-head h2 em,.hallmark h2 em{color:transparent;background:var(--metal);-webkit-background-clip:text;background-clip:text}
.sec-note{grid-column:2;max-width:56ch;color:var(--muted)}

.shop{padding:clamp(70px,10vw,130px) var(--gutter)}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:14px 0;margin-bottom:26px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);position:sticky;top:64px;z-index:20;background:rgba(14,15,17,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.tool-right{display:flex;gap:18px;align-items:center}
.count-note{font-size:13px;color:var(--muted)}
.sort{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600}
.sort select{font:inherit;font-size:14px;padding:9px 30px 9px 14px;border:1px solid var(--line);border-radius:999px;background:transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23E7E9EC' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 12px center/11px;appearance:none;-webkit-appearance:none;color:var(--silver);cursor:pointer}
.sort select option{background:var(--char);color:var(--silver)}
.noscript{padding:20px;border:1px solid var(--line);border-radius:12px}
@media (max-width:620px){.toolbar{position:static}.chips{overflow-x:auto;flex-wrap:nowrap;max-width:100%;padding-bottom:4px}.cs-chip{white-space:nowrap}}
/* card glint on hover */
.cs-card .glint{opacity:0;transform-box:fill-box;transform-origin:center;transform:scale(.3)}
@media (hover:hover){.cs-card:hover .glint{animation:glint 1.4s ease-in-out infinite}}
.cs-card:hover .glint:nth-of-type(2){animation-delay:.45s}
.cs-card:hover .glint:nth-of-type(3){animation-delay:.9s}
@keyframes glint{0%,100%{opacity:0;transform:scale(.3) rotate(0)}40%{opacity:1;transform:scale(1) rotate(45deg)}}

/* 925 */
.hallmark{padding:clamp(70px,10vw,130px) var(--gutter);background:var(--char)}
.hm-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px 64px;align-items:center}
.hallmark .sec-no{margin-bottom:8px}
.hm-text{color:var(--muted);max-width:58ch;margin:22px 0 30px;font-size:17px}
.alloy{max-width:520px}
.alloy-bar{display:flex;height:16px;border-radius:999px;overflow:hidden;background:var(--char-2)}
.a-ag{background:var(--metal);width:92.5%;transform-origin:left;transition:transform 1.6s var(--ease)}
.a-cu{background:#B8734A;width:7.5%;transform-origin:left;transition:transform .8s 1.4s var(--ease)}
.js .alloy:not(.in) .a-ag,.js .alloy:not(.in) .a-cu{transform:scaleX(0)}
.alloy-legend{display:flex;justify-content:space-between;margin-top:12px;font-size:14px;color:var(--muted)}
.alloy-legend b{font-family:var(--display);font-size:38px;color:var(--silver);font-weight:600;font-variant-numeric:tabular-nums}
.stamp{width:100%;max-width:380px;justify-self:center;color:var(--silver-2)}
.stamp .draw{stroke-dasharray:var(--len,900);stroke-dashoffset:0;transition:stroke-dashoffset 1.8s var(--ease)}
.js .stamp:not(.in) .draw{stroke-dashoffset:var(--len,900)}
.stamp text{fill:var(--silver);transition:opacity .8s 1.2s}
.js .stamp:not(.in) text{opacity:0}
.st-t{font-family:var(--display);font-size:34px;font-weight:700}
.st-h{font-family:var(--body);font-size:26px;font-weight:700;letter-spacing:.3em}
.st-s{font-family:var(--body);font-size:11px;fill:var(--muted)!important;letter-spacing:.04em}
@media (max-width:820px){.hm-grid{grid-template-columns:1fr}}

/* CARE */
.care{padding:clamp(70px,10vw,130px) var(--gutter)}
.care-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px 64px;align-items:start}
.tarnish{margin:0}
.tn-view{position:relative;aspect-ratio:1/1;border-radius:24px;overflow:hidden;background:var(--cs-card);--p:38%}
.tn-layer{position:absolute;inset:0}
.tn-layer svg{width:100%;height:100%}
.tn-new{clip-path:inset(0 0 0 var(--p))}
.tn-old svg{filter:sepia(.55) saturate(.7) brightness(.62) contrast(1.15)}
.tn-old::after{content:"";position:absolute;inset:0;background:radial-gradient(40% 30% at 35% 60%,rgba(70,50,30,.35),transparent),radial-gradient(30% 25% at 62% 40%,rgba(40,30,20,.3),transparent);mix-blend-mode:multiply}
.tn-handle{position:absolute;top:0;bottom:0;left:var(--p);width:2px;background:var(--silver);transform:translateX(-1px);pointer-events:none}
.tn-handle span{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:46px;height:46px;border-radius:50%;background:var(--silver);color:var(--night);display:grid;place-items:center;font-size:18px;box-shadow:0 8px 24px rgba(0,0,0,.5)}
.tn-range{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.tn-range:focus-visible + .tn-handle,.tn-view:focus-within .tn-handle span{outline:2px solid var(--rose);outline-offset:3px}
.tarnish figcaption{display:flex;justify-content:space-between;margin-top:12px;font-size:13px;color:var(--muted)}
.tips{list-style:none;margin:0;padding:0;counter-reset:t;display:grid;gap:4px}
.tips li{counter-increment:t;display:grid;grid-template-columns:44px 1fr;gap:2px 14px;padding:18px 16px;border-radius:16px;transition:background .3s}
.tips li::before{content:"0" counter(t);grid-row:span 2;font-family:var(--display);font-style:italic;font-size:26px;color:var(--rose);line-height:1}
.tips li:hover{background:var(--char)}
.tips b{font-family:var(--display);font-size:24px;font-weight:600;line-height:1.1}
.tips span{color:var(--muted);font-size:15px}
@media (max-width:820px){.care-grid{grid-template-columns:1fr}}

/* LANE */
.lane{padding:clamp(70px,10vw,130px) var(--gutter);background:var(--char)}
.lane-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px 64px}
.lane-text{font-size:clamp(19px,1.7vw,23px);line-height:1.55;color:var(--silver-2);max-width:46ch}
.facts{margin:0}
.facts div{display:flex;align-items:baseline;gap:18px;padding:14px 0;border-bottom:1px solid var(--line)}
.facts dt{font-family:var(--display);font-weight:600;font-size:clamp(46px,5vw,72px);line-height:1;min-width:3.4ch;font-variant-numeric:tabular-nums}
.facts dt span{background:var(--metal);-webkit-background-clip:text;background-clip:text;color:transparent}
.facts dd{margin:0;color:var(--muted)}
@media (max-width:820px){.lane-grid{grid-template-columns:1fr}}

.js .rv{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .rv.in{opacity:1;transform:none}

/* FOOTER */
.foot{padding:50px var(--gutter) 90px;overflow:hidden;border-top:1px solid var(--line)}
.foot-big{font-family:var(--display);font-style:italic;font-weight:600;font-size:14vw;line-height:.85;white-space:nowrap;background:var(--metal);-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.5}
.foot-row{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-top:30px;font-size:14.5px}
.foot address{font-style:normal;color:var(--muted);line-height:1.7}
.foot nav{display:flex;gap:22px;flex-wrap:wrap}
.foot nav a{text-decoration:none;opacity:.8}
.foot nav a:hover{opacity:1;color:var(--rose)}

/* size modal */
.size-modal{z-index:95}
.sg-card{width:min(720px,100%);padding:clamp(24px,4vw,44px)}
.sg-card h2{font-family:var(--display);font-size:clamp(32px,4vw,48px);font-weight:600;line-height:1;margin:6px 0 18px}
.sg-card h2 em{color:var(--rose)}
.sg-table-wrap{overflow-x:auto}
.sg-table{width:100%;border-collapse:collapse;min-width:480px;font-variant-numeric:tabular-nums}
.sg-table th,.sg-table td{padding:11px 10px;text-align:center;border-bottom:1px solid var(--line);font-size:14px}
.sg-table th[scope="row"]{text-align:left}
.sg-table thead th{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.sg-note{font-size:14px;color:var(--muted);margin-top:14px}

/* concept badge */
.concept-badge{position:fixed;left:14px;bottom:14px;z-index:60;font-size:12px;font-weight:600;letter-spacing:.02em;text-decoration:none;background:rgba(231,233,236,.92);color:var(--night);padding:8px 12px;border-radius:999px}
.concept-badge:hover{background:var(--rose)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero h1 em,.strip-in,.js .stage-fallback,.hint-dot{animation:none}
  .js .rv{opacity:1;transform:none;transition:none}
  .a-ag,.a-cu,.stamp .draw,.stamp text{transition:none}
}

/* phone: touch wording for the stage hint */
@media (hover:none){.stage-hint .hint-t{display:none}.stage-hint::after{content:"Drag to spin it"}}