@font-face{font-family:'Bodoni Moda';src:url('assets/BodoniModa.ttf') format('truetype');font-weight:400 900;font-display:swap}
@font-face{font-family:Jost;src:url('assets/Jost.ttf') format('truetype');font-weight:100 900;font-display:swap}

:root{--green:#143b33;--green-d:#0f2e28;--cream:#f5f1ea;--sage:#e9e8dd;--gold:#d4b06a;--gold-d:#9a7a3e;--muted:#4f5f59;--muted-l:#b4c0b9;--line:#e3ddcf;--pad:clamp(20px,5vw,72px)}
*{box-sizing:border-box}
body{margin:0;background:var(--cream);font-family:Jost,system-ui,sans-serif;color:var(--green)}
a{color:inherit;text-decoration:none}a:hover{opacity:.8}
.serif{font-family:'Bodoni Moda',serif;font-weight:400}
.mono{font-family:'JetBrains Mono',monospace}
.eyebrow{font-size:13px;letter-spacing:.24em;text-transform:uppercase}
.h2{margin:0;font-family:'Bodoni Moda',serif;font-weight:400;font-size:clamp(38px,4.4vw,60px);line-height:1.05}
.wrap{max-width:1296px;margin:0 auto}
.sec{padding:clamp(64px,8vw,110px) var(--pad)}
.btn{display:inline-flex;gap:28px;padding:18px 26px;font-size:16px;font-weight:500;border:1px solid var(--green)}
.btn-dark{background:var(--green);color:var(--cream)}
.btn-gold{background:var(--gold);color:var(--green);border-color:var(--gold);font-weight:600}
.btn-gold-o{border-color:var(--gold);color:var(--gold)}
.ph{display:flex;align-items:center;justify-content:center;text-align:center;padding:10px;font:11px 'JetBrains Mono',monospace}
.ticker{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 30px;padding:10px 20px;background:var(--green-d);color:var(--muted-l);font:12px 'JetBrains Mono',monospace}
nav{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px 32px;padding:22px var(--pad);background:var(--green);color:#f3efe6;position:sticky;top:0;z-index:20}
.logo{display:flex;flex-direction:column;align-items:center;gap:2px}
.logo b{font:400 28px/1 'Bodoni Moda',serif;letter-spacing:.06em}.logo small{font-size:12px;font-weight:600;letter-spacing:.42em}
.navlinks{display:flex;flex-wrap:wrap;gap:8px 30px;font-size:15px;font-weight:500}
/* hero */
.hero{position:relative;padding-bottom:90vh}
.hero-in{position:sticky;top:0;min-height:100vh;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,440px),1fr));align-items:center;gap:24px;padding:110px var(--pad) 40px;max-width:1440px;margin:0 auto}
.hero h1{margin:0;font:400 clamp(48px,6.4vw,92px)/1 'Bodoni Moda',serif;letter-spacing:-.01em}
.hero h1 em{color:var(--gold-d)}
.chip{font:500 14px Jost,sans-serif;padding:10px 16px;border:1px solid var(--green);background:transparent;color:var(--green);cursor:pointer}
.chip.on{background:var(--green);color:var(--cream)}
.stage{position:relative;height:clamp(380px,48vw,600px);background:radial-gradient(ellipse at 50% 42%,#fffdf8 0%,#efe9dd 70%);border:1px solid var(--line)}
.stage canvas{position:absolute;inset:0;width:100%;height:100%;cursor:grab;touch-action:none}
.sw{width:30px;height:30px;border-radius:50%;cursor:pointer;border:2px solid transparent;box-shadow:inset 0 -4px 6px rgba(0,0,0,.18),inset 0 3px 4px rgba(255,255,255,.6)}
.gem{width:26px;height:26px;transform:rotate(45deg);cursor:pointer;border:2px solid #d8d2c4;box-shadow:inset -3px -3px 5px rgba(0,0,0,.25),inset 3px 3px 4px rgba(255,255,255,.7)}
.sw.on,.gem.on{border-color:var(--green)}
/* coin */
.coin{position:relative;width:250px;height:250px;transform-style:preserve-3d}
.coin>div{position:absolute;inset:0;border-radius:50%}
.face{backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:#5a4318;background:radial-gradient(circle at 35% 30%,#fff3cf 0%,#e9c878 30%,#b8913f 70%,#8a6a2c 100%);box-shadow:inset 0 0 0 10px rgba(138,106,44,.35),inset 0 0 0 12px rgba(255,240,200,.5)}
.rates{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid rgba(212,176,106,.3)}
.rates div{padding:20px 0;border-bottom:1px solid rgba(212,176,106,.3);display:flex;flex-direction:column;gap:4px}
.rates div:nth-child(even){padding-left:24px;border-left:1px solid rgba(212,176,106,.3)}
.rates span:first-child{font-size:13px;color:var(--muted-l)}.rates span:last-child{font:400 34px 'Bodoni Moda',serif}
/* process */
.carousel{position:relative;width:240px;height:300px;transform-style:preserve-3d;transition:transform .9s cubic-bezier(.3,.7,.2,1)}
.card3d{position:absolute;inset:0;background:#fbf9f4;border:1px solid var(--line);box-shadow:0 30px 50px -25px rgba(20,59,51,.45);display:flex;flex-direction:column;padding:14px;gap:12px}
.step{all:unset;cursor:pointer;display:grid;grid-template-columns:48px 1fr;gap:4px 16px;padding:20px 0;border-top:1px solid var(--line);opacity:.45;transition:opacity .3s}
.step.on{opacity:1}
/* studies */
.study{display:flex;flex-direction:column;gap:16px;transition:transform .25s ease-out;transform-style:preserve-3d}
/* timeline */
.tl{background:var(--cream);padding:28px 24px;display:flex;flex-direction:column;gap:14px;min-height:260px;box-shadow:0 30px 40px -25px rgba(20,59,51,.4);transition:transform .35s ease}
.tl:hover{transform:translateY(-14px) translateZ(40px)}
input[type=range]{accent-color:var(--green);width:100%;max-width:440px}
.wa{position:fixed;right:24px;bottom:28px;z-index:30;display:flex;align-items:center;gap:10px;padding:16px 22px;background:var(--gold);color:var(--green);font-size:15px;font-weight:600;border-radius:2px;box-shadow:0 6px 0 #8a6a2c,0 16px 30px -8px rgba(0,0,0,.45);transition:transform .12s,box-shadow .12s}
.wa:active{transform:translateY(5px);box-shadow:0 1px 0 #8a6a2c,0 6px 12px -6px rgba(0,0,0,.4)}
.wa i{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(20,59,51,.2)}

.original-logo{display:block;position:relative;overflow:hidden;width:260px;aspect-ratio:2610/668}.original-logo img{position:absolute;width:114.94253%;height:auto;max-width:none;left:-5.78544%;top:-39.22156%}
html{scroll-padding-top:150px}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--gold-d);outline-offset:5px}.step{width:100%;box-sizing:border-box}.viewer-fallback{position:absolute;inset:0;background:url('assets/study-ring.png') right center/200% 100% no-repeat}.stage.ready .viewer-fallback{display:none}.stage.fallback canvas{display:none}.stage canvas{touch-action:pan-y}.study-art{aspect-ratio:3/4;background-size:200% 100%;background-position:right;background-repeat:no-repeat;border:1px solid rgba(212,176,106,.25)}.process-art{flex:1;min-height:0;object-fit:cover;width:100%}.wa{max-width:calc(100vw - 32px)}.h2,.hero h1{font-weight:500}
@media(max-width:650px){nav{gap:14px;padding:16px 20px}.logo{width:100%}.original-logo{width:240px}.navlinks{gap:12px;font-size:13px}nav>.btn{padding:10px!important;font-size:13px!important}.hero{padding-bottom:0}.hero-in{position:relative;min-height:auto;padding:42px 20px;grid-template-columns:1fr}.hero h1{font-size:54px}.stage{height:410px}.wa{font-size:13px;padding:12px 16px;right:16px;bottom:16px}footer{padding-bottom:100px!important}.ticker{font-size:11px;gap:6px 16px}}
@media(prefers-reduced-motion:reduce){.hero{padding-bottom:0}.hero-in{position:relative;min-height:auto}.carousel,.study,.tl{transition:none}.tl:hover{transform:none}}

.stage{perspective:1100px;overflow:visible;border:0;background:none}.jewel-plane{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .2s ease-out;box-shadow:0 26px 50px -22px #143b334a;background:#efe9dd;overflow:hidden;--design-image:url('assets/study-ring.png')}.image-sketch,.image-polished{position:absolute;inset:0;background-image:var(--design-image);background-size:200% 100%;background-repeat:no-repeat}.image-sketch{background-position:left center}.image-polished{background-position:right center;clip-path:inset(0 0 0 50%)}.image-divider{position:absolute;top:0;bottom:0;width:1px;background:#a0865566;left:50%}.image-labels{position:absolute;left:20px;right:20px;top:20px;display:flex;justify-content:space-between;font-size:10px;letter-spacing:.15em;color:#405347}.stage #prodName{top:auto!important;bottom:16px;background:#f5f1eae6;padding:8px}.polish-control{display:flex;align-items:center;gap:18px;font-size:14px}.polish-control input{flex:1;min-width:0}.study-note{margin:0;font-size:12px;color:var(--muted)}
@media(prefers-reduced-motion:reduce){.jewel-plane{transition:none!important}}
@media(max-width:650px){.logo{width:auto}.original-logo{width:185px}.navlinks{order:3;width:100%;justify-content:center}.hero h1{font-size:clamp(38px,11.3vw,49px);letter-spacing:-.025em}.hero .eyebrow{font-size:11px;letter-spacing:.14em}.hero-in{padding-top:34px}nav>.btn{margin-left:auto}}
@media(max-width:360px){.original-logo{width:155px}nav{gap:12px}.stage{height:365px}}
@media(min-width:651px){.hero h1{font-size:clamp(46px,4.45vw,64px);letter-spacing:-.025em}.hero-in{padding-top:64px;min-height:calc(100vh - 145px)}.stage{height:clamp(420px,39vw,560px)}}

/* Each original diptych half is 768 x 1024: preserve its 3:4 proportions. */
.jewellery-viewer{width:100%;max-width:420px;justify-self:center}
.stage{width:100%;height:auto;aspect-ratio:3/4}
.hero{padding-bottom:280px}
@media(max-width:999px){.hero{padding-bottom:0}.hero-in{position:relative;grid-template-columns:1fr;min-height:auto}}
@media(prefers-reduced-motion:reduce){.hero{padding-bottom:0}}