/* =========================================================
   EVERLUME — Lab-Grown Diamond Fine Jewellery
   Modern-luxe demo theme
   ========================================================= */

:root{
  --ivory:#FBF8F4;
  --cream:#F3EEE7;
  --paper:#FFFFFF;
  --ink:#211C16;
  --ink-soft:#5A5147;
  --taupe:#9A8F82;
  --line:#E7DFD4;
  --gold:#B0894F;
  --gold-soft:#CBB089;
  --gold-tint:#F1E8DA;
  --charcoal:#211D18;
  --radius:4px;
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Jost',system-ui,sans-serif;
  color:var(--ink);
  background:var(--ivory);
  font-weight:300;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

h1,h2,h3,h4{font-family:'Cormorant Garamond',serif;font-weight:500;line-height:1.08;letter-spacing:.005em}
h1{font-size:clamp(2.8rem,6vw,5rem)}
h2{font-size:clamp(2rem,4vw,3.1rem)}
h3{font-size:clamp(1.5rem,2.6vw,2.1rem)}

.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}

.eyebrow{
  display:inline-block;font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;
  color:var(--gold);font-weight:500;margin-bottom:18px;
}
.eyebrow--dark{color:var(--ink-soft)}
.eyebrow--light{color:#fff}
.eyebrow--gold{color:var(--gold-soft)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;font-family:'Jost',sans-serif;font-size:.74rem;letter-spacing:.22em;
  text-transform:uppercase;font-weight:500;padding:15px 34px;border-radius:var(--radius);
  cursor:pointer;border:1px solid transparent;transition:all .4s var(--ease);
}
.btn--solid{background:var(--ink);color:#fff}
.btn--solid:hover{background:var(--gold);color:#fff;transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--sm{padding:12px 26px;font-size:.68rem}

.link-arrow{
  font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink);
  font-weight:500;position:relative;transition:color .3s var(--ease);
}
.link-arrow:hover{color:var(--gold)}

/* ---------- Announcement ---------- */
.announce{
  background:var(--charcoal);color:#EDE4D6;display:flex;align-items:center;justify-content:center;
  gap:22px;font-size:.74rem;letter-spacing:.12em;padding:10px 16px;text-align:center;
}
.announce p{font-weight:300}
.announce__arrow{background:none;border:none;color:#9c9183;font-size:1.1rem;cursor:pointer}

/* ---------- Header ---------- */
.header{background:var(--ivory);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header__bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:84px;gap:20px}
.header__left{display:flex;align-items:center;gap:30px}
.header__phone{font-size:.78rem;letter-spacing:.08em;color:var(--ink-soft);white-space:nowrap}
.nav{display:flex;gap:26px}
.nav__link{font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);font-weight:400;transition:color .3s}
.nav__link:hover,.nav__link.is-active{color:var(--ink)}
.nav__link--drop span{font-size:.7rem;color:var(--gold)}

.brand{display:flex;align-items:center;gap:10px;justify-self:center}
.brand__mark{color:var(--gold);font-size:.9rem}
.brand__name{font-family:'Cormorant Garamond',serif;font-size:1.7rem;letter-spacing:.42em;font-weight:500;padding-left:.42em}
.brand__logo{height:38px;width:auto;display:block}
.brand__logo--full{height:104px;width:auto;display:block}

.header__right{display:flex;align-items:center;gap:22px;justify-content:flex-end}
.social{display:flex;gap:14px}
.social__ic{width:30px;height:30px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;font-size:.8rem;color:var(--ink-soft);transition:all .3s}
.social__ic:hover{background:var(--gold);color:#fff;border-color:var(--gold)}
.header__cta{padding:11px 22px;font-size:.68rem}

.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.hamburger span{width:24px;height:1.5px;background:var(--ink);transition:.3s}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;height:100vh;width:78%;max-width:320px;background:var(--ivory);
  z-index:100;transform:translateX(100%);transition:transform .45s var(--ease);
  display:flex;flex-direction:column;gap:6px;padding:90px 32px;box-shadow:-20px 0 60px rgba(0,0,0,.12);
}
.drawer.open{transform:translateX(0)}
.drawer a{font-size:1rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);padding:14px 0;border-bottom:1px solid var(--line)}
.drawer .btn{margin-top:22px;text-align:center}

/* ---------- Media (real photos) ---------- */
.media{width:100%;height:100%;object-fit:cover;display:block}

/* ---------- Pinned 3D ring canvas ---------- */
.ring-canvas{
  position:fixed;inset:0;z-index:20;pointer-events:none;opacity:0;
  touch-action:pan-y;  /* opacity is driven entirely by JS (no CSS transition) */
}
.ring-canvas.ready{opacity:1}
.ring-canvas.interactive{pointer-events:auto;cursor:grab}
.ring-canvas.interactive:active{cursor:grabbing}
.ring-canvas canvas{width:100%!important;height:100%!important;display:block}
.ring-canvas__fallback{display:none}
/* if WebGL/GLB unavailable the canvas is hidden and the Signature
   section shows a still photo instead (see .signature__stage.has-photo) */

/* ---------- Hero ---------- */
.hero{position:relative;min-height:88vh;overflow:hidden}
.hero__bg{position:absolute;inset:0}
.hero__scrim{position:absolute;inset:0;z-index:1;background:linear-gradient(100deg,rgba(251,248,244,.96) 0%,rgba(251,248,244,.66) 30%,rgba(251,248,244,.22) 52%,rgba(251,248,244,.5) 100%)}
.hero__grid{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .9fr .62fr;align-items:center;min-height:88vh;gap:22px}
.hero__copy{position:relative;z-index:40;max-width:520px}
.hero__copy h1{margin:6px 0 20px}
.hero__copy p{font-size:1.05rem;color:var(--ink-soft);max-width:360px;margin-bottom:34px}
.hero__ringzone{align-self:stretch}

.hero__side{position:relative;z-index:40;align-self:center;max-width:300px;margin-left:auto;display:flex;flex-direction:column;
  background:rgba(255,255,255,.66);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.6);border-radius:var(--radius);overflow:hidden;
  box-shadow:0 30px 64px -34px rgba(33,28,22,.45)}
.hero__side-img,.hero__side-video{height:210px;object-position:center 72%}
.hero__side-video{width:100%;object-fit:cover;display:block}
.hero__side-copy{padding:18px 20px 22px}
.hero__side-copy h3{margin:4px 0 8px}
.hero__side-copy p{font-size:.82rem;color:var(--ink-soft);margin-bottom:14px}

/* ---------- Trust ---------- */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;padding-top:64px;padding-bottom:64px;border-bottom:1px solid var(--line)}
.trust__item{display:flex;gap:16px;align-items:flex-start}
.trust__ic{font-size:1.4rem;color:var(--gold);line-height:1.4}
.trust__item h4{font-family:'Jost',sans-serif;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;font-weight:500;margin-bottom:4px}
.trust__item p{font-size:.82rem;color:var(--taupe)}

/* ---------- Promo duo ---------- */
.promo{display:grid;grid-template-columns:1fr 1fr;gap:22px;padding-top:64px}
.promo__card{display:grid;grid-template-columns:1fr auto;align-items:center;gap:20px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:40px 42px;transition:box-shadow .4s var(--ease),transform .4s var(--ease)}
.promo__card:hover{box-shadow:0 24px 50px -28px rgba(33,28,22,.28);transform:translateY(-3px)}
.promo__text h3{margin-bottom:10px}
.promo__text p{font-size:.9rem;color:var(--ink-soft);margin-bottom:18px}
.promo__text b{color:var(--gold);font-weight:600}
.promo__img{width:128px;height:128px;border-radius:50%;flex-shrink:0}

/* ---------- Sections ---------- */
.section{padding-top:96px}
.section__head{margin-bottom:48px}
.section__head--center{text-align:center}
.section__head--split{display:flex;justify-content:space-between;align-items:flex-end;border-bottom:1px solid var(--line);padding-bottom:22px}
.section__cta{text-align:center;margin-top:54px}

/* ---------- Product grid ---------- */
.grid{display:grid;gap:22px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}

.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .4s var(--ease),transform .4s var(--ease);cursor:pointer;position:relative}
.card:hover{box-shadow:0 28px 56px -30px rgba(33,28,22,.32);transform:translateY(-4px)}
.card:hover .card__img{transform:scale(1.05)}
.card__media{position:relative;aspect-ratio:1/1;background:var(--gold-tint);overflow:hidden}
.card__img{position:absolute;inset:0;transition:transform .7s var(--ease)}
.card__badge{position:absolute;top:14px;left:14px;z-index:3;background:var(--gold);color:#fff;font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;padding:5px 11px;border-radius:2px}
.card__fav{position:absolute;top:12px;right:14px;z-index:3;background:#fff;border:1px solid var(--line);width:34px;height:34px;border-radius:50%;display:grid;place-items:center;cursor:pointer;color:var(--taupe);font-size:.95rem;transition:.3s}
.card__fav:hover,.card__fav.on{color:var(--gold);border-color:var(--gold-soft)}
.card__body{padding:22px 22px 26px;text-align:center}
.card__cat{font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--taupe)}
.card__name{font-family:'Cormorant Garamond',serif;font-size:1.32rem;margin:6px 0 10px}
.card__price{font-size:.95rem;letter-spacing:.04em}
.card__price del{color:var(--taupe);margin-right:8px;font-size:.82rem}
.card__price b{font-weight:500;color:var(--ink)}
.card__add{margin-top:16px;width:100%;background:transparent;border:1px solid var(--ink);color:var(--ink);padding:11px;font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;cursor:pointer;border-radius:2px;transition:.35s;opacity:0;transform:translateY(6px)}
.card:hover .card__add{opacity:1;transform:translateY(0)}
.card__add:hover{background:var(--ink);color:#fff}

/* ---------- Lookbook ---------- */
.lookbook{display:grid;grid-template-columns:1.4fr 1fr;align-items:stretch;gap:0;margin-top:96px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.lookbook__img{min-height:440px}
.lookbook__copy{padding:60px 64px;align-self:center}
.lookbook__copy h2{margin:4px 0 18px}
.lookbook__copy p{color:var(--ink-soft);margin-bottom:30px;max-width:360px}

/* ---------- Arrivals ---------- */
.arrivals{display:grid;grid-template-columns:1.7fr 1fr;gap:22px;align-items:stretch}
.arrivals__feature{position:relative;border-radius:var(--radius);overflow:hidden;min-height:100%}
.arrivals__feature .media{position:absolute;inset:0}
.arrivals__feature-copy{position:absolute;bottom:0;left:0;right:0;z-index:3;padding:36px;background:linear-gradient(to top,rgba(20,17,13,.7),transparent);color:#fff}
.arrivals__feature-copy h3{color:#fff;margin:2px 0 18px}

/* ---------- Signature (3D ring lands here) ---------- */
.signature{position:relative;min-height:auto;display:flex;align-items:center;overflow:hidden;
  padding:84px 0 104px;
  background:radial-gradient(120% 110% at 78% 50%, #F1E7D7 0%, var(--ivory) 60%)}
/* Text column is wider than the ring stage so the copy fills the space. */
.signature__inner{display:grid;grid-template-columns:1.18fr 0.82fr;align-items:center;width:100%;gap:48px}
.signature__copy{max-width:580px;position:relative;z-index:40}
.signature__copy h2{font-size:clamp(2.6rem,5.2vw,4.2rem);margin:8px 0 22px}
.signature__copy p{color:var(--ink-soft);max-width:520px}
.signature__lead{margin-bottom:16px}
.signature__sub{color:var(--taupe);font-size:.96rem;margin-bottom:30px}
.signature__sub em{color:var(--ink-soft);font-style:italic}
.signature__spec{list-style:none;display:flex;gap:34px;margin:0 0 34px;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.signature__spec li{display:flex;flex-direction:column}
.signature__spec b{font-family:'Cormorant Garamond',serif;font-size:1.5rem;font-weight:500;color:var(--ink)}
.signature__spec span{font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--taupe);margin-top:5px}
.signature__buy{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.signature__price{font-family:'Cormorant Garamond',serif;font-size:1.9rem;color:var(--ink)}
/* Reassurance row — fills the lower-left and adds trust detail. */
.signature__assure{list-style:none;display:flex;flex-wrap:wrap;gap:14px 30px;margin:32px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.signature__assure li{display:flex;align-items:center;gap:9px;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}
.signature__assure-ic{color:var(--gold);font-size:.95rem;line-height:1}
/* Ring stage + soft decorative "pedestal" so the ring never floats in a void. */
.signature__stage{position:relative;min-height:62vh}
.signature__stage.has-photo{background:url('../assets/ring-fallback.jpg') center/contain no-repeat}
.signature__halo{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:min(580px,94%);aspect-ratio:1;border-radius:50%;z-index:0;pointer-events:none;
  background:radial-gradient(circle at 50% 45%, rgba(255,255,255,.75) 0%, rgba(241,231,218,.55) 36%, rgba(241,231,218,0) 70%);
  border:1px solid rgba(176,137,79,.16)}
.signature__halo::after{content:'';position:absolute;inset:-44px;border-radius:50%;border:1px solid rgba(176,137,79,.10)}
.signature__hint{position:absolute;bottom:4%;left:50%;transform:translateX(-50%);z-index:1;
  display:inline-flex;align-items:center;white-space:nowrap;pointer-events:none;
  font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;color:var(--taupe)}
.signature__vlabel{position:absolute;top:50%;right:-4px;transform:translateY(-50%);z-index:1;
  writing-mode:vertical-rl;text-orientation:mixed;pointer-events:none;
  font-size:.62rem;letter-spacing:.4em;text-transform:uppercase;color:var(--taupe);opacity:.75}

/* ---------- About ---------- */
.about{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding-top:104px}
.about__img{min-height:480px;border-radius:var(--radius)}
.about__copy h2{margin:6px 0 24px}
.about__copy p{color:var(--ink-soft);margin-bottom:18px;max-width:480px}
.about__copy .link-arrow{margin-top:8px;display:inline-block}

/* ---------- FAQ ---------- */
.faq{padding-top:104px}
.faq__cols{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{width:100%;background:none;border:none;text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:22px 0;font-family:'Jost',sans-serif;font-size:.96rem;font-weight:400;color:var(--ink)}
.faq__q span{color:var(--gold);font-size:1.2rem;transition:transform .35s var(--ease);flex-shrink:0}
.faq__item.open .faq__q span{transform:rotate(45deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .4s var(--ease);color:var(--ink-soft);font-size:.9rem}
.faq__a p{padding:0 0 24px}

/* ---------- Newsletter ---------- */
.news{margin-top:104px;background:var(--charcoal);color:#EDE4D6}
.news__inner{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:80px 28px}
.news__left h2{color:#fff;margin:4px 0 12px}
.news__left p{color:#a89e90;font-size:.92rem;max-width:380px}
.news__form{display:flex;gap:12px}
.news__form input{flex:1;background:transparent;border:1px solid #4a443c;border-radius:var(--radius);padding:15px 18px;color:#fff;font-family:'Jost',sans-serif;font-size:.86rem}
.news__form input::placeholder{color:#8a8174}
.news__form input:focus{outline:none;border-color:var(--gold)}
.news__form .btn--solid{background:var(--gold);white-space:nowrap}
.news__form .btn--solid:hover{background:#fff;color:var(--ink)}

/* ---------- Footer ---------- */
.footer{background:#1B1813;color:#a89e90}
.footer__top{display:grid;grid-template-columns:1fr 1fr 1fr 1.5fr;gap:40px;padding:74px 28px 56px}
.footer__col{display:flex;flex-direction:column;gap:12px}
.footer__col h5{font-family:'Jost',sans-serif;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-soft);font-weight:500;margin-bottom:8px}
.footer__col a{font-size:.86rem;color:#a89e90;transition:color .3s}
.footer__col a:hover{color:#fff}
.brand--footer .brand__name{color:#fff;font-size:1.4rem}
.footer__addr{font-size:.82rem;line-height:1.7;margin-top:14px}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;padding:24px 28px;border-top:1px solid #312c25;font-size:.78rem}
.footer__pay{display:flex;gap:10px}
.footer__pay span{border:1px solid #3a342c;border-radius:3px;padding:4px 9px;font-size:.62rem;letter-spacing:.08em;color:#8a8174}

/* ---------- Toast ---------- */
.toast{
  position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(30px);
  background:var(--ink);color:#fff;padding:15px 28px;border-radius:var(--radius);
  font-size:.8rem;letter-spacing:.06em;opacity:0;pointer-events:none;transition:all .4s var(--ease);z-index:200;
  box-shadow:0 20px 40px -16px rgba(0,0,0,.5);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast b{color:var(--gold-soft);font-weight:500}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============== RESPONSIVE ============== */
@media(max-width:1080px){
  .header__phone,.social{display:none}
  .nav{gap:18px}
}
@media(max-width:900px){
  .hero{min-height:auto}
  .hero__grid{grid-template-columns:1fr;min-height:auto;padding:64px 0 70px;gap:32px}
  .hero__ringzone{display:none}
  .hero__copy{margin:0 auto;text-align:center}
  .hero__copy p{margin-left:auto;margin-right:auto}
  .hero__side{max-width:380px;margin:0 auto}
  .arrivals{grid-template-columns:1fr}
  .arrivals__feature{min-height:340px}
  .lookbook,.about{grid-template-columns:1fr}
  .lookbook__img,.about__img{min-height:320px}
  .about{gap:36px}
  .signature__inner{grid-template-columns:1fr;gap:0}
  .signature{min-height:auto;padding:80px 0}
  .signature__copy{margin:0 auto;text-align:center;max-width:520px}
  .signature__copy p{margin-left:auto;margin-right:auto}
  .signature__spec{justify-content:center}
  .signature__buy{justify-content:center}
  .signature__assure{justify-content:center}
  .signature__stage{min-height:54vh;order:-1}
  .signature__vlabel{display:none}
}
@media(max-width:780px){
  .header__bar{grid-template-columns:auto 1fr auto}
  .header__left .nav,.header__cta{display:none}
  .hamburger{display:flex}
  .brand{justify-self:start}
  .trust{grid-template-columns:1fr 1fr;gap:30px 24px}
  .promo,.grid--3,.grid--2,.news__inner,.footer__top,.faq__cols{grid-template-columns:1fr}
  .promo{gap:18px}
  .news__form{flex-direction:column}
  .section{padding-top:72px}
  .lookbook__copy,.about__copy{padding:44px 32px}
  .footer__bottom{flex-direction:column;gap:14px;text-align:center}
}
@media(max-width:480px){
  .trust{grid-template-columns:1fr}
  .brand__name{font-size:1.3rem;letter-spacing:.3em}
  .signature__spec{gap:22px}
}