/* ==========================================================================
   J-CASTING — j-casting.ru
   Ювелирное производство полного цикла. Премиум-лендинг.
   ========================================================================== */

:root{
  --bg:#FDFBF7;
  --bg-2:#F7F3EB;
  --bg-3:#FAF7F1;
  --card:#FFFDF9;
  --card-hover:#FAF5EA;
  --ink:#241F17;
  --ink-2:#241F17;
  --ink-3:#5B5245;
  --ink-4:#5E5546;
  --ink-5:#6F6350;
  --gold:#A9812F;
  --gold-light:#8A6528;
  --gold-bright:#6B4E18;
  --gold-deep:#6B4E18;
  --line:rgba(169,129,47,.22);
  --line-2:rgba(169,129,47,.36);
  --serif:'Cormorant Garamond',Georgia,'Times New Roman',serif;
  --sans:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
  --maxw:1320px;
  --pad:clamp(16px,4vw,56px);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:300;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

img,svg{display:block;max-width:100%}
a{color:#8A6528;text-decoration:none;transition:color .35s ease}
a:hover{color:var(--gold-bright)}
h1,h2,h3,p{margin:0}
::selection{background:var(--gold);color:var(--bg)}

.u-serif{font-family:var(--serif)}
.u-italic{font-style:italic;color:#8A6528}

/* --- Зерно ------------------------------------------------------------- */
.grain{
  position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.035;
  mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* --- Метки, надзаголовки ---------------------------------------------- */
.kicker{
  display:block;font-size:10px;letter-spacing:.34em;text-transform:uppercase;
  color:#6B5F49;
}
.eyebrow{
  display:flex;align-items:center;gap:14px;
  font-size:clamp(9px,1.1vw,11px);letter-spacing:.34em;text-transform:uppercase;color:#63594A;
}
.eyebrow::before{
  content:"";flex:none;width:clamp(28px,6vw,86px);height:1px;
  background:linear-gradient(90deg,rgba(169,129,47,0),var(--gold));
}

/* --- Шапка ------------------------------------------------------------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;
  gap:10px 18px;padding:14px var(--pad);
  background:linear-gradient(180deg,rgba(253,251,247,.92) 0%,rgba(253,251,247,.55) 70%,rgba(253,251,247,0) 100%);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:background .5s ease,border-color .5s ease;
  border-bottom:1px solid transparent;
}
.header.is-stuck{
  background:rgba(253,251,247,.94);
  border-bottom-color:var(--line);
}
.logo{display:flex;align-items:center;gap:12px}
.logo__mark{flex:none;width:34px;height:34px}
.logo__text{display:flex;flex-direction:column;line-height:1}
.logo__name{
  font-family:var(--serif);font-size:20px;letter-spacing:.26em;
  color:var(--ink-2);text-transform:uppercase;
}
.logo__tag{
  font-size:8.5px;letter-spacing:.38em;color:#6B5F49;
  text-transform:uppercase;margin-top:5px;
}
.nav{display:flex;align-items:center;gap:clamp(12px,2vw,30px);flex-wrap:wrap}
.nav__link{
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:#4E463A;
}
.nav__link:hover{color:var(--gold-bright)}
.nav__phone{
  font-family:var(--serif);font-size:clamp(14px,1.6vw,17px);letter-spacing:.08em;
  color:var(--gold-light);border:1px solid var(--line-2);border-radius:2px;
  padding:8px 16px;white-space:nowrap;
  transition:border-color .4s ease,background .4s ease,color .4s ease;
}
.nav__phone:hover{border-color:var(--gold);background:rgba(169,129,47,.09)}

/* --- Герой ------------------------------------------------------------- */
.hero{
  position:relative;isolation:isolate;
  min-height:100vh;min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;
  padding:clamp(120px,16vh,190px) var(--pad) clamp(48px,7vh,80px);
}
.hero__bg{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(120% 80% at 50% -10%,rgba(169,129,47,.16) 0%,rgba(253,251,247,0) 60%),
    radial-gradient(90% 60% at 50% 110%,rgba(120,90,180,.10) 0%,rgba(253,251,247,0) 65%),
    var(--bg);
}
.caustics{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.caustic{position:absolute;border-radius:50%;filter:blur(80px)}
.caustic--a{
  top:2%;left:6%;width:44vw;height:44vw;opacity:.2;
  background:conic-gradient(from 0deg,rgba(169,129,47,.5),rgba(60,150,175,.32),rgba(120,80,190,.3),rgba(200,120,60,.4),rgba(169,129,47,.5));
  animation:caustic 22s ease-in-out infinite;
}
.caustic--b{
  bottom:-8%;right:2%;width:38vw;height:38vw;opacity:.16;
  background:conic-gradient(from 140deg,rgba(169,129,47,.55),rgba(230,200,140,.4),rgba(60,150,175,.3),rgba(169,129,47,.55));
  animation:caustic 28s ease-in-out infinite reverse;
}
.cursor-glow{
  position:absolute;top:0;left:0;width:520px;height:520px;margin:-260px 0 0 -260px;
  border-radius:50%;opacity:0;transition:opacity .6s ease;will-change:transform;
  background:radial-gradient(circle,rgba(169,129,47,.16) 0%,rgba(169,129,47,.07) 40%,rgba(253,251,247,0) 70%);
}

.gem{
  --gem-size:clamp(300px,46vw,660px);
  position:absolute;z-index:0;top:50%;left:50%;
  width:var(--gem-size);height:var(--gem-size);
  margin-left:calc(var(--gem-size) / -2);margin-top:calc(var(--gem-size) / -2);
  pointer-events:none;opacity:.6;
}
.gem__float{position:absolute;inset:0;animation:float 14s ease-in-out infinite}
.gem__ring{position:absolute;inset:0;border-radius:50%;border:1px solid rgba(169,129,47,.16);animation:spin 90s linear infinite}
.gem__ring--inner{inset:11%;border-style:dashed;border-color:rgba(169,129,47,.14);animation:spin-rev 120s linear infinite}
.gem__svg{position:absolute;inset:14%;width:72%;height:72%;animation:spin 60s linear infinite}
.gem__facet{animation:facet 7s ease-in-out infinite}
.gem__facet--slow{animation:facet 9s ease-in-out infinite reverse}

.hero__inner{position:relative;z-index:2;width:100%;max-width:var(--maxw);margin:0 auto}
.hero__title{
  margin:clamp(18px,3vh,30px) 0 0;
  padding:.1em .06em .26em;
  margin-left:-.06em;
  overflow:visible;
  font-family:var(--serif);font-weight:300;
  font-size:clamp(52px,12.5vw,208px);line-height:.86;letter-spacing:.02em;
  text-transform:uppercase;
}
.shine{
  background:linear-gradient(100deg,#5A4315 0%,#B08A38 16%,#DCBB68 26%,#8A6528 42%,#5A4315 56%,#C9A24A 74%,#5A4315 100%);
  background-size:300% 100%;
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  animation:sheen 11s linear infinite;
}
.hero__row{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:clamp(16px,3vw,48px);margin-top:clamp(20px,3.5vh,38px);
}
.hero__lead{
  max-width:44ch;font-size:clamp(14px,1.5vw,19px);line-height:1.7;
  color:#5B5245;text-wrap:pretty;
}
.hero__domain{
  display:flex;align-items:center;gap:12px;color:#7E7669;
  font-size:10px;letter-spacing:.28em;text-transform:uppercase;
}
.hero__domain::after{content:"";width:44px;height:1px;background:rgba(169,129,47,.4)}
.scroll-cue{
  position:absolute;left:50%;bottom:18px;z-index:2;width:1px;height:52px;
  margin-left:-.5px;background:linear-gradient(180deg,rgba(169,129,47,0),var(--gold));
  animation:cue 2.8s ease-in-out infinite;
}

/* --- Две большие кнопки ------------------------------------------------ */
.gates{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));
  gap:clamp(14px,1.6vw,22px);margin-top:clamp(34px,6vh,66px);
}
.gate{
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:space-between;
  gap:clamp(28px,5vh,54px);min-height:clamp(196px,26vh,268px);
  padding:clamp(22px,2.4vw,34px);
  border:1px solid var(--line-2);border-radius:3px;
  background:linear-gradient(155deg,rgba(255,253,248,.94) 0%,rgba(243,238,228,.94) 100%);
  transition:border-color .5s ease,transform .5s cubic-bezier(.2,.8,.2,1),box-shadow .5s ease;
}
.gate:hover{
  border-color:rgba(169,129,47,.8);transform:translateY(-4px);
  box-shadow:0 30px 70px -30px rgba(90,67,21,.28);
}
.gate--designers{background:linear-gradient(155deg,rgba(253,253,255,.94) 0%,rgba(236,239,244,.94) 100%)}
.gate--designers:hover{
  border-color:rgba(60,110,145,.5);
  box-shadow:0 30px 70px -30px rgba(40,80,110,.22);
}
.gate__label,.gate__bottom{position:relative}
.gate__bottom{display:flex;align-items:flex-end;justify-content:space-between;gap:16px}
.gate__title{
  font-family:var(--serif);font-weight:300;
  font-size:clamp(30px,4.6vw,58px);line-height:.95;letter-spacing:.01em;color:#241F17;
}
.gate__arrow{font-family:var(--serif);font-size:clamp(26px,3vw,40px);line-height:1;color:var(--gold)}
.glow{
  position:absolute;top:0;left:0;width:420px;height:420px;margin:-210px 0 0 -210px;
  border-radius:50%;opacity:0;pointer-events:none;transition:opacity .45s ease;
  background:radial-gradient(circle,rgba(169,129,47,.2) 0%,rgba(169,129,47,.08) 45%,rgba(0,0,0,0) 70%);
}
.glow--cool{background:radial-gradient(circle,rgba(60,110,145,.14) 0%,rgba(60,150,175,.07) 45%,rgba(0,0,0,0) 70%)}
.glow--sm{width:340px;height:340px;margin:-170px 0 0 -170px;
  background:radial-gradient(circle,rgba(169,129,47,.14) 0%,rgba(0,0,0,0) 70%)}

/* --- Секции ------------------------------------------------------------ */
.section{position:relative;padding:clamp(70px,11vh,140px) var(--pad);border-top:1px solid var(--line)}
.section__inner{position:relative;max-width:var(--maxw);margin:0 auto}
.section--prices{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 40%,var(--bg-3) 100%)}
.section--designers{background:var(--bg-3);overflow:hidden}
.section--contacts{
  background:linear-gradient(180deg,var(--bg-3) 0%,var(--bg-2) 100%);
  padding-bottom:clamp(40px,6vh,64px);overflow:hidden;
}
.hairline{
  position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(169,129,47,0),rgba(169,129,47,.55),rgba(169,129,47,0));
}
.section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:clamp(18px,3vw,40px);
}
.section__title{
  margin:16px 0 0;font-family:var(--serif);font-weight:300;
  font-size:clamp(34px,6vw,84px);line-height:.98;letter-spacing:.01em;color:var(--ink-2);
}
.section__note{max-width:40ch;font-size:13px;line-height:1.75;color:#5E5546;text-wrap:pretty}

/* --- Прайс ------------------------------------------------------------- */
.prices{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,332px),1fr));
  gap:1px;margin-top:clamp(34px,6vh,64px);
  background:var(--line);border:1px solid var(--line);
}
.price{
  position:relative;overflow:hidden;padding:clamp(24px,2.4vw,38px);
  background:var(--card);transition:background .5s ease;
}
.price:hover{background:var(--card-hover)}
.price--request{background:linear-gradient(150deg,#FBF4E6 0%,#FFFDF9 100%)}
.price--request:hover{background:linear-gradient(150deg,#F7EEDB 0%,#FDF9F0 100%)}
.price__num{
  position:relative;display:block;font-family:var(--serif);
  font-size:13px;letter-spacing:.2em;color:#6F6350;
}
.price__title{
  position:relative;margin-top:14px;font-family:var(--serif);font-weight:400;
  font-size:clamp(22px,2.4vw,30px);line-height:1.18;color:var(--ink-2);
}
.price__sub{position:relative;margin-top:10px;font-size:12.5px;line-height:1.6;color:var(--ink-4)}
.price__rows{position:relative;margin-top:20px;display:flex;flex-direction:column;gap:9px}
.price__row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;font-size:13px;color:#5C5346}
.price__row::before{content:none}
.price__dots{flex:1;height:1px;background:rgba(169,129,47,.2)}
.price__val{
  font-family:var(--serif);font-weight:500;font-size:20px;
  color:var(--gold-light);white-space:nowrap;
}
.price__note{
  position:relative;margin-top:22px;padding-top:18px;border-top:1px solid rgba(169,129,47,.14);
  font-size:12.5px;line-height:1.7;color:var(--ink-4);text-wrap:pretty;
}
.price__request{position:relative;margin-top:20px;font-family:var(--serif);font-style:italic;font-size:22px;color:var(--gold-light)}
.link-underline{
  position:relative;display:inline-flex;align-items:center;gap:10px;margin-top:26px;
  font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:#8A6528;
  border-bottom:1px solid rgba(169,129,47,.4);padding-bottom:6px;
  transition:color .4s ease,border-color .4s ease;
}
.link-underline:hover{color:var(--gold-bright);border-color:var(--gold-bright)}

/* --- Дизайнерам -------------------------------------------------------- */
.aura{
  position:absolute;top:-30%;right:-12%;width:52vw;height:52vw;border-radius:50%;
  opacity:.12;filter:blur(100px);pointer-events:none;
  background:conic-gradient(from 60deg,rgba(169,129,47,.4),rgba(120,80,190,.28),rgba(60,150,175,.3),rgba(169,129,47,.4));
  animation:caustic 26s ease-in-out infinite;
}
.split{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,380px),1fr));
  gap:clamp(28px,4vw,72px);align-items:start;
}
.prose{margin-top:clamp(20px,3vh,32px);max-width:52ch;font-size:clamp(14px,1.4vw,17px);line-height:1.8;color:var(--ink-3);text-wrap:pretty}
.prose + .prose{margin-top:18px}
.facts{
  display:flex;flex-wrap:wrap;gap:clamp(20px,3vw,44px);
  margin-top:clamp(28px,4vh,44px);padding-top:clamp(24px,3vh,34px);
  border-top:1px solid var(--line);
}
.fact{display:flex;flex-direction:column;gap:8px}
.fact__num{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(26px,3.4vw,48px);line-height:1.08;
  white-space:nowrap;color:var(--gold-light);
}
.fact__cap{font-size:10px;letter-spacing:.26em;text-transform:uppercase;color:#6B5F49}

.flow{
  display:flex;flex-direction:column;border:1px solid rgba(169,129,47,.18);
  background:linear-gradient(160deg,rgba(255,253,247,.9) 0%,rgba(245,240,230,.9) 100%);
}
.flow__head{padding:clamp(20px,2vw,26px) clamp(20px,2.4vw,32px);border-bottom:1px solid rgba(169,129,47,.14)}
.flow__item{
  display:flex;align-items:baseline;gap:clamp(14px,2vw,26px);
  padding:clamp(18px,2vw,24px) clamp(20px,2.4vw,32px);
  border-bottom:1px solid rgba(169,129,47,.1);transition:background .4s ease;
}
.flow__item:last-child{border-bottom:0}
.flow__item:hover{background:rgba(169,129,47,.05)}
.flow__num{font-family:var(--serif);font-weight:400;font-size:14px;color:var(--gold);min-width:26px}
.flow__body{flex:1}
.flow__title{display:block;font-family:var(--serif);font-weight:400;font-size:clamp(19px,2vw,25px);color:var(--ink-2)}
.flow__text{display:block;margin-top:6px;font-size:12.5px;line-height:1.6;color:var(--ink-4)}

/* --- Контакты ---------------------------------------------------------- */
.beam{
  position:absolute;left:50%;top:0;width:1px;height:clamp(120px,20vh,240px);
  transform-origin:top;
  background:linear-gradient(180deg,rgba(169,129,47,.6),rgba(169,129,47,0));
  animation:beam 6s ease-in-out infinite;
}
.contacts__head{text-align:center}
.contacts__phone{
  display:inline-block;margin-top:18px;font-family:var(--serif);font-weight:300;
  font-size:clamp(34px,7vw,96px);line-height:1;letter-spacing:.01em;
  animation-duration:13s;
}
.contacts__grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));
  gap:clamp(20px,2.4vw,32px);margin-top:clamp(38px,6vh,68px);
}
.contact{padding:clamp(22px,2.2vw,30px);border:1px solid var(--line);background:rgba(255,255,255,.66)}
.contact--messengers{display:flex;flex-direction:column;gap:12px}
.contact__label{display:block;font-size:9.5px;letter-spacing:.3em;text-transform:uppercase;color:#6B5F49;margin-bottom:14px}
.contact--messengers .contact__label{margin-bottom:2px}
.contact__main{font-family:var(--serif);font-size:clamp(18px,1.9vw,23px);line-height:1.45;color:#2A241B;text-wrap:pretty}
.contact__sub{margin-top:10px;font-size:12.5px;line-height:1.6;color:var(--ink-4)}
.msg{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 16px;border:1px solid rgba(169,129,47,.3);
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:#8A6528;
  transition:background .4s ease,border-color .4s ease,color .4s ease;
}
.msg:hover{background:rgba(169,129,47,.1);border-color:var(--gold);color:var(--gold-bright)}
.msg span{font-family:var(--serif);font-size:18px}

.footer{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:clamp(44px,7vh,80px);padding-top:24px;border-top:1px solid var(--line);
}
.footer__brand{display:flex;align-items:center;gap:10px}
.footer__name{font-family:var(--serif);font-size:14px;letter-spacing:.24em;text-transform:uppercase;color:#6B5F49}
.footer__copy{font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-5)}

/* --- Появление при скролле -------------------------------------------- */
.reveal{opacity:0;transform:translateY(46px);transition:opacity .95s cubic-bezier(.2,.8,.2,1),transform .95s cubic-bezier(.2,.8,.2,1)}
.reveal.is-in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* --- Анимации ---------------------------------------------------------- */
@keyframes sheen{0%{background-position:0% 50%}100%{background-position:300% 50%}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes spin-rev{to{transform:rotate(-360deg)}}
@keyframes float{0%,100%{transform:translateY(-10px)}50%{transform:translateY(10px)}}
@keyframes caustic{
  0%{transform:translate3d(0,0,0) scale(1);filter:blur(70px) hue-rotate(0deg)}
  50%{transform:translate3d(6%,-4%,0) scale(1.25);filter:blur(90px) hue-rotate(35deg)}
  100%{transform:translate3d(0,0,0) scale(1);filter:blur(70px) hue-rotate(0deg)}
}
@keyframes beam{0%,100%{opacity:.18;transform:scaleY(.85)}50%{opacity:.5;transform:scaleY(1)}}
@keyframes cue{0%{transform:translateY(-6px);opacity:0}40%{opacity:1}100%{transform:translateY(14px);opacity:0}}
@keyframes facet{0%,100%{opacity:.25}50%{opacity:.9}}

/* --- Адаптив / мелкие экраны ------------------------------------------ */
@media (max-width:900px){
  .nav__link{display:none}
  .gem{opacity:.45}
}
@media (max-width:520px){
  .logo__tag{display:none}
  .logo__name{font-size:17px;letter-spacing:.22em}
  .nav__phone{padding:7px 12px}
  .hero{padding-top:118px}
  .footer{justify-content:center;text-align:center}
}
@media (hover:none){
  .glow,.cursor-glow{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .caustic,.aura,.gem__float,.gem__ring,.gem__svg,.shine,.beam,.scroll-cue,.gem__facet,.gem__facet--slow{animation:none!important}
  .reveal{opacity:1;transform:none;transition:none}
  .shine{-webkit-text-fill-color:#8A6528;color:#8A6528}
}