:root{
  --bg:#FFFFFF; --bg2:#F6F5F2; --card:#FFFFFF; --line:#E8E6E1; --line2:#D9D6CF;
  --ink:#141414; --ink2:#4A4A48; --ink3:#8A8883;
  --accent:#B08D57;
  --r:20px; --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif; --display:"Inter Tight","Inter",-apple-system,sans-serif;
  --yellow:linear-gradient(135deg,#F7E7A6 0%,#E2C064 45%,#B98F2F 100%);
  --white:linear-gradient(135deg,#FFFFFF 0%,#E3E6EA 45%,#A9AFB7 100%);
  --rose:linear-gradient(135deg,#FBE3D6 0%,#EBB49B 45%,#B9765F 100%);
  --platinum:linear-gradient(135deg,#F4F6F9 0%,#D3D9E1 45%,#97A1AE 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
.wrap{max-width:1160px;margin:0 auto;padding:0 28px}
@media (max-width:620px){.wrap{padding:0 20px}}

/* header */
.top{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.88);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:28px;height:70px}
.logo{font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:-.02em;text-decoration:none;white-space:nowrap;flex:none}
.logo span{color:var(--accent)}
.nav{display:flex;gap:28px;margin-left:auto;font-size:14.5px;color:var(--ink2)}
.nav a{text-decoration:none}.nav a:hover{color:var(--ink)}
.top .btn{white-space:nowrap}
@media (max-width:780px){.nav{display:none}.top .btn{margin-left:auto}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 24px;border-radius:999px;border:1px solid transparent;font:600 15px var(--sans);text-decoration:none;cursor:pointer;transition:background .15s,border-color .15s}
.btn.dark{background:var(--ink);color:#fff}
.btn.dark:hover{background:#333}
.btn.light{background:#fff;color:var(--ink);border-color:var(--line2)}
.btn.light:hover{border-color:var(--ink)}
.btn.sm{height:42px;padding:0 18px;font-size:14px}
.btn .arr{transition:transform .15s}.btn:hover .arr{transform:translateX(3px)}

/* type */
.kick{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:-.035em;margin:0;line-height:1.04}
h1{font-size:clamp(44px,6.4vw,84px)}
h2{font-size:clamp(34px,4.4vw,54px)}
h3{font-size:21px;letter-spacing:-.02em;line-height:1.2}
.lead{font-size:19px;color:var(--ink2);max-width:540px}
.mute{color:var(--ink3)}

/* hero */
.hero{padding:84px 0 70px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{margin-top:16px}
.hero .lead{margin-top:22px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-ticks{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px}
.hero-ticks span{font-size:13.5px;color:var(--ink2);background:var(--bg2);border-radius:999px;padding:7px 14px}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr;gap:40px}.hero{padding-top:52px}}

/* spec card (hero + builder summary) */
.spec{border:1px solid var(--line);border-radius:28px;padding:28px;background:linear-gradient(180deg,#FBFAF7,#fff);box-shadow:0 40px 80px -48px rgba(20,20,20,.35)}
.spec-top{display:flex;align-items:center;gap:14px}
.orb{display:block;width:56px;height:56px;border-radius:50%;flex:none;border:1px solid rgba(0,0,0,.05);box-shadow:inset 0 -6px 14px rgba(0,0,0,.12),0 8px 18px -10px rgba(0,0,0,.4)}
.orb.yellow{background:var(--yellow)}.orb.white{background:var(--white)}.orb.rose{background:var(--rose)}.orb.platinum{background:var(--platinum)}
.spec-top b{display:block;font-family:var(--display);font-size:20px;letter-spacing:-.02em;line-height:1.25}
.spec-top small{color:var(--ink3);font-size:13.5px}
.spec dl,.sum dl{margin:22px 0 0;display:grid;grid-template-columns:auto 1fr;gap:12px 18px;font-size:14.5px}
.spec dt,.sum dt{color:var(--ink3)}
.spec dd,.sum dd{margin:0;text-align:right;font-weight:500}
.spec .bar{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:14px;color:var(--ink2)}
.swatches{display:flex;gap:6px}
.swatches .orb{width:22px;height:22px;box-shadow:none}

/* sections */
section{padding:96px 0}
.alt{background:var(--bg2)}
.sec-head{max-width:700px;margin-bottom:48px}
.sec-head h2{margin-top:12px}
.sec-head p{color:var(--ink2);font-size:18px;margin:16px 0 0}

/* style cards */
.styles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.scard{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;text-decoration:none;min-height:220px;transition:border-color .2s,transform .2s,box-shadow .2s}
.scard:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:0 20px 40px -30px rgba(0,0,0,.4)}
.scard .num{font-size:13px;color:var(--ink3);font-weight:500}
.scard h3{margin-top:auto;padding-top:30px}
.scard p{margin:8px 0 0;font-size:15px;color:var(--ink2)}
.scard em{margin-top:16px;font-style:normal;font-size:14px;font-weight:600}
@media (max-width:920px){.styles{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.styles{grid-template-columns:1fr}.scard{min-height:0}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{padding:28px 24px;border-radius:var(--r);background:#fff;border:1px solid var(--line)}
.step span{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff;font-weight:600;font-size:14px}
.step h3{margin-top:22px}
.step p{margin:8px 0 0;font-size:15px;color:var(--ink2)}
@media (max-width:920px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.steps{grid-template-columns:1fr}}

/* materials */
.metals{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metal{border:1px solid var(--line);border-radius:var(--r);padding:24px;background:#fff}
.metal .orb{width:64px;height:64px}
.metal h3{margin-top:20px}
.metal p{margin:6px 0 0;font-size:14.5px;color:var(--ink2)}
@media (max-width:920px){.metals{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.metals{grid-template-columns:1fr}}
.dgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.dbox{border:1px solid var(--line);border-radius:var(--r);padding:24px;background:#fff}
.dbox p{margin:8px 0 0;font-size:14.5px;color:var(--ink2)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.tags span{font-size:12.5px;font-weight:500;background:var(--bg2);border-radius:999px;padding:5px 11px}
@media (max-width:820px){.dgrid{grid-template-columns:1fr}}

/* heritage */
.heritage{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:center}
.since{font-family:var(--display);font-weight:600;font-size:clamp(96px,13vw,170px);letter-spacing:-.06em;line-height:.85}
.since small{display:block;font-family:var(--sans);font-size:14px;letter-spacing:0;font-weight:500;color:var(--ink3);margin-top:14px}
@media (max-width:820px){.heritage{grid-template-columns:1fr;gap:24px}}

/* faq */
.faq{max-width:800px}
.faq details{border-bottom:1px solid var(--line);padding:22px 0}
.faq summary{cursor:pointer;list-style:none;font-family:var(--display);font-weight:600;font-size:20px;letter-spacing:-.02em;display:flex;justify-content:space-between;gap:20px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-weight:400;color:var(--ink3)}
.faq details[open] summary::after{content:"–"}
.faq p{margin:12px 0 0;color:var(--ink2)}

/* final */
.final{padding:96px 0}
.final-box{border-radius:32px;background:var(--ink);color:#fff;padding:72px 40px;text-align:center}
.final-box h2{max-width:720px;margin:0 auto}
.final-box p{color:#BDBAB4;margin:18px auto 30px;max-width:500px;font-size:17px}
.final-box .btn{background:#fff;color:var(--ink)}
.final-box .btn:hover{background:#EDEBE6}
@media (max-width:600px){.final-box{padding:56px 24px;border-radius:24px}}

footer{border-top:1px solid var(--line);padding:32px 0 44px;font-size:14px;color:var(--ink3)}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between}
footer a{text-decoration:none}footer a:hover{color:var(--ink)}

/* ================= builder ================= */
.builder{padding:48px 0 110px}
.bhead{margin-bottom:34px;max-width:680px}
.bhead h1{font-size:clamp(40px,5vw,62px);margin-top:12px}
.bhead p{color:var(--ink2);margin:14px 0 0;font-size:17px}
.bgrid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:48px;align-items:start}
.opt{padding:32px 0;border-top:1px solid var(--line)}
.opt:first-child{border-top:0;padding-top:0}
.opt-h{display:flex;align-items:baseline;gap:12px;margin-bottom:18px}
.opt-h i{font-style:normal;font-size:14px;font-weight:600;color:var(--ink3);min-width:22px}
.opt-h h2{font-size:26px;letter-spacing:-.03em}
.opt-h span{margin-left:auto;font-size:14px;color:var(--ink3)}
.opt-note{font-size:14px;color:var(--ink3);margin:14px 0 0}
.chips{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
.chips.sm{grid-template-columns:repeat(auto-fill,minmax(142px,1fr))}
.chip{position:relative;display:flex;flex-direction:column;gap:2px;padding:15px 16px;border:1px solid var(--line2);border-radius:14px;background:#fff;color:var(--ink);font:inherit;text-align:left;cursor:pointer;transition:border-color .15s,box-shadow .15s}
.chip:hover{border-color:#9E9B95}
.chip b{font-size:15px;font-weight:600;padding-right:22px}
.chip small{font-size:13px;color:var(--ink3);line-height:1.35}
.chip[aria-pressed="true"]{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
.chip[aria-pressed="true"]::after{content:"";position:absolute;top:12px;right:12px;width:18px;height:18px;border-radius:50%;background:var(--ink) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M5 9.5l2.6 2.5L13 6.5' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/18px no-repeat}
.chip .orb{width:30px;height:30px;margin-bottom:10px;box-shadow:inset 0 -3px 8px rgba(0,0,0,.1)}
.chip svg.shape{width:28px;height:28px;margin-bottom:8px}
.chip[disabled]{opacity:.35;cursor:not-allowed}
.sub{margin-top:24px}
.sub .lbl{display:block;font-size:13.5px;font-weight:600;color:var(--ink2);margin-bottom:10px}
.hidden{display:none !important}

/* summary */
.sumcol{position:sticky;top:94px}
.sum{border:1px solid var(--line);border-radius:24px;padding:26px;background:#fff;box-shadow:0 30px 60px -44px rgba(20,20,20,.35)}
.sum .btn{width:100%;margin-top:22px}
.mbar{display:none}
@media (max-width:980px){
  .bgrid{grid-template-columns:1fr}
  .sumcol{display:none}
  .mbar{display:flex;position:fixed;left:12px;right:12px;bottom:12px;z-index:40;align-items:center;gap:12px;padding:10px 10px 10px 12px;border-radius:999px;background:var(--ink);color:#fff;box-shadow:0 18px 40px -16px rgba(0,0,0,.5)}
  .mbar .orb{width:30px;height:30px;box-shadow:none}
  .mbar span{flex:1;min-width:0;font-size:13.5px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .mbar a{flex:none;height:40px;padding:0 16px;border-radius:999px;background:#fff;color:var(--ink);font-weight:600;font-size:14px;display:inline-flex;align-items:center;text-decoration:none}
  .builder{padding-bottom:140px}
}

/* quote form */
.quote{margin-top:10px;padding:34px;border-radius:28px;background:var(--bg2);scroll-margin-top:90px}
.quote h2{font-size:38px;margin-top:10px}
.quote > p{color:var(--ink2);margin:10px 0 22px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fgrid .full{grid-column:1/-1}
@media (max-width:620px){.fgrid{grid-template-columns:1fr}.quote{padding:24px 20px}}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink2);margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;background:#fff;border:1px solid var(--line2);border-radius:12px;color:var(--ink);font:15.5px var(--sans);padding:13px 14px;outline:none;transition:border-color .15s,box-shadow .15s}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(20,20,20,.08)}
.field input[type=file]{padding:11px}
.field small{display:block;margin-top:6px;font-size:13px;color:var(--ink3)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink2)}
.check input{margin-top:4px;accent-color:var(--ink)}
.recap{margin:0 0 22px;padding:16px 18px;border-radius:14px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink2)}
.recap b{color:var(--ink)}
.quote .btn{width:100%;height:56px;font-size:16px;margin-top:22px}
.fine{font-size:13px;color:var(--ink3);text-align:center;margin:12px 0 0}

/* thanks */
.thanks{min-height:70vh;display:grid;place-items:center;text-align:center;padding:90px 0}
.thanks h1{font-size:clamp(44px,6vw,72px);margin-top:14px}
.thanks p{color:var(--ink2);max-width:500px;margin:18px auto 30px;font-size:17px}