/* Layout: витрина ювелирного дома — много воздуха, арка-«витрина» в первом экране, строгая сетка каталога, один акцент цвета бордо */
:root{
  --bg:#FBF8F7;
  --surface:#FFFFFF;
  --ink:#1D1718;
  --muted:#6F6466;
  --line:#E9E1DF;
  --accent:#8C1D2C;
  --accent-ink:#FFFFFF;
  --soft:#F4EDEB;
  --shadow:0 18px 50px -24px rgba(60,20,28,.35);
  --display:"Prata", "Times New Roman", Georgia, serif;
  --body:"Onest", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --r:14px;
  --wrap:1180px;
  --logo-side:#8C1D2C; --logo-center:#B0303F; --logo-gap:var(--bg);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#141112; --surface:#1C1819; --ink:#F3ECEA; --muted:#A99C9E; --line:#2E2729;
    --accent:#D9566A; --accent-ink:#1A0D10; --soft:#221D1E; --logo-side:#C44659; --logo-center:#E8768A; --shadow:0 18px 50px -24px rgba(0,0,0,.7);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#141112; --surface:#1C1819; --ink:#F3ECEA; --muted:#A99C9E; --line:#2E2729;
  --accent:#D9566A; --accent-ink:#1A0D10; --soft:#221D1E; --logo-side:#C44659; --logo-center:#E8768A; --shadow:0 18px 50px -24px rgba(0,0,0,.7);
  color-scheme:dark;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--bg)}
a{color:inherit}
img{max-width:100%;display:block}
h1,h2,h3{font-family:var(--display);font-weight:400;text-wrap:balance;margin:0;letter-spacing:-.005em}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:500}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 24px;border-radius:999px;font:500 15px/1 var(--body);text-decoration:none;cursor:pointer;border:1px solid transparent;transition:background .2s,color .2s,border-color .2s,transform .2s}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--bg)}
.btn svg{width:18px;height:18px;flex:none}

/* Header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:24px;min-height:64px}
.logo{font-family:var(--display);font-size:22px;text-decoration:none;letter-spacing:.02em;display:flex;align-items:baseline;gap:8px}
.logo small{font-family:var(--body);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.top nav{display:flex;gap:28px;margin-left:auto}
.top nav a{text-decoration:none;font-size:14px;color:var(--muted)}
.top nav a:hover{color:var(--ink)}
.top .call{min-height:40px;padding:0 18px;font-size:14px}
@media (max-width:820px){.top nav{display:none}.top .call{margin-left:auto}}
@media (max-width:420px){.logo small{display:none}}

/* Hero */
.hero{padding-block:56px 72px}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(40px,6vw,76px);line-height:1.04}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lead{margin-top:22px;font-size:18px;color:var(--muted);max-width:30em}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:44px;border-top:1px solid var(--line)}
.facts div{padding:16px 16px 0 0;font-size:14px;color:var(--muted);min-width:0}
.facts b{display:block;color:var(--ink);font-weight:600;font-size:15px;margin-bottom:2px}
.arch{position:relative;justify-self:center;width:min(100%,440px)}
.arch .frame{aspect-ratio:4/5.2;border-radius:999px 999px 18px 18px;overflow:hidden;background:var(--soft);box-shadow:var(--shadow);max-width:100%}
.arch img{width:100%;height:100%;object-fit:cover}
.arch .tag{position:absolute;left:-18px;bottom:38px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 16px;box-shadow:var(--shadow);font-size:13px;line-height:1.35}
.arch .tag b{display:block;font-family:var(--display);font-weight:400;font-size:20px}
@media (max-width:860px){
  .hero{padding-block:32px 48px}
  .hero .wrap{grid-template-columns:1fr;gap:40px}
  .arch{order:-1;width:min(100%,300px)}
  .arch .tag{left:0}
}
@media (max-width:560px){.facts{grid-template-columns:1fr}.facts div{padding:14px 0;border-bottom:1px solid var(--line)}}

/* Promises */
.promise{border-block:1px solid var(--line);background:var(--surface)}
.promise .wrap{display:grid;grid-template-columns:1fr 1fr}
.promise article{padding-block:56px;display:grid;gap:14px;align-content:start;min-width:0}
.promise article+article{border-left:1px solid var(--line);padding-left:56px}
.promise article:first-child{padding-right:56px}
.promise .big{font-family:var(--display);font-size:clamp(44px,6vw,72px);line-height:1;color:var(--accent)}
.promise h2{font-size:clamp(24px,2.6vw,32px);line-height:1.15}
.promise p{color:var(--muted);max-width:34em}
.promise .btn{justify-self:start;margin-top:8px}
@media (max-width:820px){
  .promise .wrap{grid-template-columns:1fr}
  .promise article{padding-block:40px}
  .promise article+article{border-left:0;border-top:1px solid var(--line);padding-left:0}
  .promise article:first-child{padding-right:0}
}

/* Steps */
.how{padding-block:72px 24px}
.how .head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap}
.how h2{font-size:clamp(28px,3.4vw,40px)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:32px;counter-reset:s}
.steps li{list-style:none;counter-increment:s;padding-top:18px;border-top:1px solid var(--ink);min-width:0}
.steps li::before{content:counter(s);font-family:var(--display);font-size:28px;display:block;margin-bottom:8px;color:var(--accent)}
.steps b{display:block;font-weight:600;margin-bottom:4px}
.steps p{color:var(--muted);font-size:15px}
.steps{padding:0}
@media (max-width:760px){.steps{grid-template-columns:1fr;gap:20px}}

/* Catalog */
.catalog{padding-block:72px 96px;scroll-margin-top:64px}
.catalog .head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap}
.catalog h2{font-size:clamp(32px,4vw,52px)}
.catalog .note{color:var(--muted);font-size:15px;max-width:28em}
.tabs-wrap{position:sticky;top:calc(64px + env(safe-area-inset-top,0px));z-index:10;background:var(--bg);margin-top:28px;border-bottom:1px solid var(--line)}
.tabs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-block:14px}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:none;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:10px 16px;font:500 14px/1 var(--body);cursor:pointer;white-space:nowrap;transition:background .2s,color .2s,border-color .2s}
.tab:hover{border-color:var(--ink)}
.tab[aria-selected="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.tab .n{opacity:.55;margin-left:6px;font-variant-numeric:tabular-nums}
.group{margin-top:36px}
.group h3{font-family:var(--body);font-weight:600;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:18px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:36px 24px}
@media (max-width:560px){.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 12px}}
.card{display:flex;flex-direction:column;gap:12px;min-width:0}
.card .ph{position:relative;aspect-ratio:4/5;border-radius:var(--r);overflow:hidden;background:var(--soft);max-width:100%;cursor:pointer;border:0;padding:0}
.card .ph img{width:100%;height:100%;object-fit:cover;object-position:50% 35%;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.card:hover .ph img{transform:scale(1.035)}
.card .cat{font-size:12px;color:var(--muted);letter-spacing:.04em}
.card h4{margin:0;font-family:var(--display);font-weight:400;font-size:19px;line-height:1.25}
.card .row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;flex-wrap:wrap}
.price{font-size:17px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.price.req{font-weight:500;color:var(--muted);font-size:15px}
.card .btn{min-height:40px;padding:0 16px;font-size:14px}
@media (max-width:560px){
  .card h4{font-size:16px}
  .price{font-size:15px}
  .card .row{flex-direction:column;align-items:stretch;gap:8px}
  .card .btn{width:100%}
}
.card.custom .ph{display:grid;place-items:center;text-align:center;padding:24px;background:var(--soft);border:1px dashed color-mix(in srgb,var(--muted) 45%,transparent);cursor:default}
.card.custom .ph p{font-family:var(--display);font-size:22px;line-height:1.25}
.card.custom .ph span{display:block;font-family:var(--body);font-size:14px;color:var(--muted);margin-top:10px}

/* Custom set band */
.own{background:var(--soft);padding-block:72px;scroll-margin-top:64px}
.own .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.own .pics{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.own .pics img{aspect-ratio:3/4;object-fit:cover;border-radius:var(--r);width:100%;height:auto;max-width:100%}
.own .pics img:nth-child(2){margin-top:48px}
.own h2{font-size:clamp(30px,3.8vw,48px);line-height:1.08}
.own ul{margin:22px 0 28px;padding:0;display:grid;gap:12px}
.own li{list-style:none;padding-left:26px;position:relative;color:var(--muted)}
.own li::before{content:"";position:absolute;left:0;top:.62em;width:12px;height:12px;border-radius:50%;background:var(--accent);opacity:.85}
.own li b{color:var(--ink);font-weight:600}
@media (max-width:860px){.own .wrap{grid-template-columns:1fr;gap:36px}}

/* Footer */
footer{padding-block:48px calc(48px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--line)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;align-items:end}
footer .ph-num{font-family:var(--display);font-size:clamp(26px,3vw,36px);user-select:all}
footer p{color:var(--muted);font-size:14px}
footer .links{display:flex;gap:10px;flex-wrap:wrap}
footer .legal{margin-top:28px;font-size:12px;color:var(--muted)}
footer p a{color:var(--ink);text-underline-offset:3px}

/* Order sheet */
.sheet-bg{position:fixed;inset:0;z-index:50;background:rgba(20,10,12,.45);display:grid;align-items:end;justify-items:center;opacity:0;transition:opacity .25s}
.sheet-bg.on{opacity:1}
.sheet{width:min(100%,520px);background:var(--surface);color:var(--ink);border-radius:22px 22px 0 0;padding:28px max(20px,env(safe-area-inset-right,0px)) calc(24px + env(safe-area-inset-bottom,0px)) max(20px,env(safe-area-inset-left,0px));transform:translateY(24px);transition:transform .3s cubic-bezier(.2,.7,.2,1);max-height:92vh;overflow:auto}
.sheet-bg.on .sheet{transform:none}
@media (min-width:640px){.sheet-bg{align-items:center}.sheet{border-radius:22px;padding:32px}}
.sheet .x{position:absolute;right:0;top:0;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font-size:20px;line-height:1}
.sheet .hd{position:relative;display:flex;gap:16px;align-items:center;padding-right:48px}
.sheet .hd img{width:72px;height:90px;object-fit:cover;border-radius:10px;flex:none}
.sheet .hd .mark{width:72px;height:90px;border-radius:10px;flex:none;background:var(--soft);display:grid;place-items:center;font-family:var(--display);font-size:28px;color:var(--accent)}
.sheet h3{font-size:22px;line-height:1.2}
.sheet .sub{color:var(--muted);font-size:14px;margin-top:4px}
.sheet .msg{margin-top:20px;padding:16px;border-radius:12px;background:var(--soft);font-size:15px}
.sheet .msg b{font-weight:600}
.sheet .opts{display:grid;gap:10px;margin-top:20px}
.sheet .opts .btn{width:100%;justify-content:flex-start;padding:0 20px}
.sheet .opts .btn span{margin-left:auto;font-size:13px;opacity:.75;white-space:nowrap}
@media (max-width:440px){.sheet .opts .btn span{display:none}}
.sheet .num{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);flex-wrap:wrap}
.sheet .num output{font-size:18px;font-weight:600;font-variant-numeric:tabular-nums;user-select:all}
.linkbtn{background:none;border:0;color:var(--accent);font:500 14px var(--body);cursor:pointer;padding:6px 0;text-decoration:underline;text-underline-offset:3px}
.sheet .fine{margin-top:14px;font-size:13px;color:var(--muted)}
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translate(-50%,20px);background:var(--ink);color:var(--bg);padding:12px 18px;border-radius:999px;font-size:14px;z-index:60;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;max-width:calc(100% - 32px);text-align:center}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* Server-rendered catalog filter */
.grid{margin-top:36px}
#list:not(.all) .card .cat{display:none}
.empty{margin-top:36px;color:var(--muted)}


/* Logo mark: colors follow the theme */
.ss-mark{display:block;height:100%;width:auto}
.ss-mark [fill="#8C1D2C"]{fill:var(--logo-side)}
.ss-mark [stroke="#8C1D2C"]{stroke:var(--logo-side)}
.ss-mark [fill="#B0303F"]{fill:var(--logo-center)}
.ss-mark [fill="#FBF8F7"]{fill:var(--logo-gap)}
.ss-mark [stroke="#FBF8F7"]{stroke:var(--logo-gap)}
.logo{align-items:center;gap:10px}
.logo .ss-mark{height:38px;flex:none}
.logo .wm{display:flex;align-items:baseline;gap:8px}
.sheet .hd .mark{padding:12px}
.sheet .hd .mark .ss-mark{height:100%}
.sheet .hd .mark{--logo-gap:var(--soft)}