:root{
  --bg:#0a0b0d;
  --bg-2:#0f1114;
  --panel:#14161a;
  --panel-2:#181b20;
  --line:#23262c;
  --line-2:#30343b;
  --text:#e9eaec;
  --muted:#aab0b8;
  --steel:#8a919b;
  --gold:#d9a441;
  --gold-hi:#f2cf7c;
  --gold-lo:#a9771f;
  --gold-grad:linear-gradient(180deg,var(--gold-hi) 0%,var(--gold) 55%,var(--gold-lo) 100%);
  --silver-grad:linear-gradient(180deg,#ffffff 0%,#d9dce0 45%,#9aa1aa 100%);
  --wrap:1180px;
  --radius:10px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font-family:Montserrat,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-size:17px;line-height:1.7;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--gold-hi)}
p{margin:0 0 18px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
@media (max-width:640px){.wrap{padding:0 18px}body{font-size:16px}}
.tm{font-size:.55em;vertical-align:super;line-height:0;margin-left:1px;font-weight:600}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:100;background:#fff;color:#000;padding:8px 12px;border-radius:4px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:12px;background:var(--gold-grad);color:#15110a;font-weight:800;text-transform:uppercase;letter-spacing:.07em;font-size:14px;text-decoration:none;padding:17px 26px;border-radius:5px;box-shadow:0 0 0 1px rgba(242,207,124,.35) inset,0 12px 30px -14px rgba(217,164,65,.6);transition:transform .15s ease,filter .15s ease;white-space:nowrap}
.btn:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn:focus-visible,.btn-ghost:focus-visible,.nav a:focus-visible{outline:3px solid var(--gold-hi);outline-offset:3px}
.btn svg,.btn-ghost svg{width:17px;height:17px;flex:none}
.btn-ghost{display:inline-flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;text-transform:uppercase;letter-spacing:.07em;font-size:14px;padding:16px 22px;border:1px solid var(--line-2);border-radius:5px;transition:border-color .15s,color .15s}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-hi)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--gold-hi);font-weight:700;text-decoration:none;text-transform:uppercase;letter-spacing:.08em;font-size:13.5px;border-bottom:1px solid rgba(217,164,65,.4);padding-bottom:3px}
.text-link:hover{border-bottom-color:var(--gold-hi)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(10,11,13,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-bottom-color:var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand img{height:40px;width:auto}
.nav{display:flex;align-items:center;gap:28px}
.nav a{color:#cfd3d8;text-decoration:none;font-size:13.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}
.nav a:hover,.nav a[aria-current="page"]{color:var(--gold-hi)}
.nav .btn{color:#15110a;padding:11px 16px;font-size:12.5px}
.menu-btn{display:none;background:none;border:1px solid var(--line-2);color:var(--text);border-radius:6px;width:44px;height:44px;align-items:center;justify-content:center;cursor:pointer}
.menu-btn svg{width:22px;height:22px}
@media (max-width:1060px){
  .menu-btn{display:inline-flex}
  .nav{position:fixed;top:76px;left:0;right:0;bottom:0;background:#0a0b0d;flex-direction:column;align-items:stretch;gap:0;padding:12px 24px 32px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s ease,transform .2s ease,visibility .2s;overflow-y:auto}
  .nav.open{opacity:1;visibility:visible;transform:none}
  .nav a{padding:18px 4px;border-bottom:1px solid var(--line);font-size:15px}
  .nav .btn{margin-top:22px;justify-content:center;padding:16px;font-size:14px;border-bottom:0}
}
@media (max-width:640px){.site-header .wrap{height:66px}.brand img{height:32px}.nav{top:66px}}

/* Hero */
.hero{position:relative;overflow:hidden;background:radial-gradient(ellipse 60% 70% at 88% 20%,rgba(217,140,40,.13),transparent 60%),var(--bg);border-bottom:1px solid var(--line)}
.hero .wrap{position:relative;z-index:1;padding-top:110px;padding-bottom:110px}
.hero .emblem{position:absolute;right:-90px;top:50%;transform:translateY(-50%);width:min(620px,58vw);opacity:.09;pointer-events:none;z-index:0}
.hero-inner{max-width:880px}
.eyebrow{font-family:Cinzel,Georgia,serif;font-weight:700;letter-spacing:.22em;text-transform:uppercase;font-size:13px;color:var(--gold);margin:0 0 22px}
.hero h1{margin:0 0 26px;font-weight:800;text-transform:uppercase;line-height:1.06;letter-spacing:-.01em;font-size:clamp(36px,5.4vw,68px)}
.hero h1 .accent{background:var(--gold-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:clamp(17px,1.7vw,21px);color:var(--muted);max-width:700px;margin:0 0 36px}
.rule{width:110px;height:3px;background:var(--gold-grad);border-radius:2px;margin:0 0 26px}
@media (max-width:760px){.hero .wrap{padding-top:64px;padding-bottom:72px}.hero .emblem{right:-140px;width:420px;opacity:.07}}

/* Sections */
section.block{padding:104px 0}
section.alt{background:var(--bg-2);border-top:1px solid #16181c;border-bottom:1px solid #16181c}
@media (max-width:760px){section.block{padding:72px 0}}
.kicker{font-family:Cinzel,Georgia,serif;font-weight:700;font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);margin:0 0 16px}
h2{margin:0 0 24px;font-weight:800;text-transform:uppercase;font-size:clamp(28px,3.7vw,46px);line-height:1.1;letter-spacing:-.005em}
h3{margin:0 0 10px;font-weight:700;font-size:20px;line-height:1.3}
.lede{font-size:clamp(17px,1.5vw,19.5px);color:var(--muted);max-width:780px}
.lede strong{color:var(--text)}
.narrow{max-width:820px}
.center{text-align:center}
.center .lede,.center .narrow{margin-left:auto;margin-right:auto}
.punch{font-weight:800;text-transform:uppercase;letter-spacing:.01em;font-size:clamp(20px,2.4vw,28px);line-height:1.25;color:#fff;margin:28px 0 0}
.punch .g{color:var(--gold-hi)}
.stack-lines{list-style:none;padding:0;margin:0}
.stack-lines li{padding:2px 0}

/* Two layers */
.layers{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:44px}
.layer{padding:38px 36px}
.layer + .layer{border-left:1px solid var(--line);background:linear-gradient(180deg,rgba(217,164,65,.07),rgba(217,164,65,.015))}
.layer h3{font-family:Cinzel,Georgia,serif;font-size:14px;letter-spacing:.2em;text-transform:uppercase;color:var(--steel);margin-bottom:6px}
.layer + .layer h3{color:var(--gold)}
.layer .lead-in{color:var(--muted);margin:0 0 18px;font-size:16px}
.layer ul{list-style:none;margin:0;padding:0}
.layer li{padding:11px 0;border-bottom:1px solid var(--line);font-weight:600;display:flex;gap:12px;align-items:baseline}
.layer li:last-child{border-bottom:0}
.layer li::before{content:"";flex:none;width:7px;height:7px;transform:rotate(45deg) translateY(-2px);background:var(--steel)}
.layer + .layer li::before{background:var(--gold)}
@media (max-width:820px){.layers{grid-template-columns:1fr}.layer + .layer{border-left:0;border-top:1px solid var(--line)}.layer{padding:30px 22px}}

/* Not list */
.nots{list-style:none;padding:0;margin:30px 0;display:grid;gap:10px}
.nots li{font-size:clamp(18px,1.8vw,22px);font-weight:700;color:var(--steel);padding-left:34px;position:relative}
.nots li::before{content:"";position:absolute;left:0;top:50%;width:20px;height:2px;background:var(--line-2)}
.install{border-left:3px solid var(--gold);padding:6px 0 6px 24px;margin-top:30px}
.install p{margin:0;font-size:clamp(17px,1.6vw,20px);color:#dfe2e5}

/* Chips grid */
.chips{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:12px;margin:34px 0}
.chip{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px 18px;font-weight:600;display:flex;gap:12px;align-items:center}
.chip::before{content:"";flex:none;width:7px;height:7px;transform:rotate(45deg);background:var(--gold)}
.chips.steel .chip::before{background:var(--steel)}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:44px;counter-reset:c}
.card{grid-column:span 2;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;counter-increment:c;transition:border-color .2s,transform .2s}
.card:nth-child(4),.card:nth-child(5){grid-column:span 3}
.card:hover{border-color:#4a4335;transform:translateY(-2px)}
.card::before{content:"0" counter(c);display:block;font-family:Cinzel,Georgia,serif;color:var(--gold);font-weight:700;font-size:14px;letter-spacing:.2em;margin-bottom:16px}
.card p{color:var(--muted);margin:0;font-size:16px}
@media (max-width:960px){.cards{grid-template-columns:1fr 1fr}.card,.card:nth-child(4),.card:nth-child(5){grid-column:auto}.card:nth-child(5){grid-column:1 / -1}}
@media (max-width:600px){.cards{grid-template-columns:1fr}}

/* Chain (diagnosed / installed / ...) */
.chain{list-style:none;padding:0;margin:44px 0 0;display:grid;gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.chain li{display:grid;grid-template-columns:90px 220px 1fr;align-items:center;gap:20px;padding:24px 30px;border-bottom:1px solid var(--line);background:var(--panel)}
.chain li:nth-child(even){background:var(--panel-2)}
.chain li:last-child{border-bottom:0}
.chain .n{font-family:Cinzel,Georgia,serif;font-weight:700;color:var(--gold);font-size:15px;letter-spacing:.18em}
.chain .v{font-weight:800;text-transform:uppercase;letter-spacing:.06em;font-size:15px}
.chain .d{color:var(--muted);font-size:16px}
@media (max-width:760px){.chain li{grid-template-columns:1fr;gap:4px;padding:22px 20px}}

/* Practices */
.practices{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:44px}
.practice{position:relative;display:block;text-decoration:none;color:inherit;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:40px 36px 34px;overflow:hidden;transition:border-color .2s,transform .2s}
.practice:hover{border-color:rgba(217,164,65,.6);transform:translateY(-3px)}
.practice .p-num{font-family:Cinzel,Georgia,serif;color:var(--gold);letter-spacing:.2em;font-size:13px;font-weight:700;text-transform:uppercase}
.practice h3{font-size:clamp(24px,2.4vw,30px);font-weight:800;text-transform:uppercase;margin:12px 0 14px}
.practice p{color:var(--muted);margin:0 0 26px}
.practice-note{margin-top:18px;color:var(--steel);font-size:14.5px}
@media (max-width:820px){.practices{grid-template-columns:1fr}.practice{padding:30px 22px}}

/* Book feature */
.book{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}
.book-img{border-radius:14px;overflow:hidden;box-shadow:0 30px 70px -30px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.06)}
.book-img img{width:100%;aspect-ratio:1/1;object-fit:cover}
@media (max-width:900px){.book{grid-template-columns:1fr;gap:36px}.book-img{max-width:520px}}

/* Equation */
.equation{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px 18px;margin:40px 0 8px}
.equation .term{background:var(--panel);border:1px solid var(--line-2);border-radius:8px;padding:18px 24px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;font-size:clamp(15px,1.6vw,18px)}
.equation .op{color:var(--gold);font-size:28px;font-weight:700}
.equation .res{background:var(--gold-grad);color:#15110a;border:0}

/* CTA band */
.cta{position:relative;background:radial-gradient(ellipse 60% 90% at 50% 0%,rgba(217,140,40,.14),transparent 65%),var(--bg);border-top:1px solid var(--line)}
.cta-card{max-width:900px;margin:0 auto;text-align:center;border:1px solid rgba(217,164,65,.45);border-radius:16px;padding:56px 44px;background:linear-gradient(180deg,rgba(22,24,28,.92),rgba(14,15,18,.92))}
.cta-card .btn-row{justify-content:center;margin-top:8px}
.cta-card .nos{list-style:none;padding:0;margin:0 0 22px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 26px;color:var(--steel);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:13.5px}
.cta-card .nos li::before{content:"✕";color:var(--gold);margin-right:8px;font-size:12px}
.direct{margin-top:24px;font-size:15px;color:var(--steel)}
.direct a{color:#e9eaec;text-decoration:none;border-bottom:1px solid rgba(217,164,65,.6);font-weight:600}
@media (max-width:640px){.cta-card{padding:38px 20px}}

/* Contact page */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start}
.contact-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:32px 30px}
.contact-card dl{margin:0}
.contact-card dt{font-family:Cinzel,Georgia,serif;font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-top:22px}
.contact-card dt:first-child{margin-top:0}
.contact-card dd{margin:6px 0 0;font-weight:600}
.contact-card dd a{color:var(--text);text-decoration:none;border-bottom:1px solid rgba(217,164,65,.5)}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}

/* Footer */
.site-footer{background:#07080a;border-top:1px solid #16181c;padding:64px 0 40px;color:var(--steel);font-size:14.5px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px}
.foot-grid img{height:44px;width:auto;margin-bottom:18px}
.foot-grid h4{font-family:Cinzel,Georgia,serif;font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin:6px 0 14px;font-weight:700}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{padding:5px 0}
.foot-grid a{color:#d3d6da;text-decoration:none}
.foot-grid a:hover{color:var(--gold-hi)}
.foot-base{margin-top:48px;padding-top:22px;border-top:1px solid #16181c;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#7c838c}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr}}
.cards.four .card,.cards.four .card:nth-child(4){grid-column:span 3}
@media (max-width:960px){.cards.four .card,.cards.four .card:nth-child(4){grid-column:auto}}
.text-link{white-space:nowrap}
.text-link svg{width:15px;height:15px;flex:none}
.book-img img,.hero img{height:auto}
@media (max-width:1060px){.site-header{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(10,11,13,.97)}}
/* Bulk order form */
.form-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.order-form{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:32px 30px;display:grid;gap:18px}
.order-form label{display:grid;gap:7px;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#cfd3d8}
.order-form .opt{color:var(--steel);font-weight:500;text-transform:none;letter-spacing:0}
.order-form input,.order-form textarea{width:100%;background:#0c0d10;border:1px solid var(--line-2);border-radius:6px;color:var(--text);font:inherit;font-size:16px;font-weight:500;letter-spacing:0;text-transform:none;padding:13px 14px}
.order-form input:focus,.order-form textarea:focus{outline:2px solid var(--gold);outline-offset:1px;border-color:transparent}
.order-form input[type=date]{color-scheme:dark}
.order-form .row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.order-form fieldset{border:0;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center}
.order-form legend{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#cfd3d8;margin-bottom:8px;width:100%}
.order-form .radio{display:flex;align-items:center;gap:10px;text-transform:none;letter-spacing:0;font-size:16px;font-weight:600}
.order-form .radio input{width:20px;height:20px;accent-color:var(--gold);padding:0}
.order-form .btn{justify-content:center;border:0;cursor:pointer;font-family:inherit}
.form-note{margin:0;color:var(--steel);font-size:14px}
.hp{position:absolute;left:-9999px}
@media (max-width:900px){.form-grid{grid-template-columns:1fr;gap:28px}}
@media (max-width:560px){.order-form .row2{grid-template-columns:1fr}.order-form{padding:24px 18px}}
.order-form label{display:block}
.order-form label input,.order-form label textarea{display:block;margin-top:7px}
.order-form .radio{display:flex}
.order-form .radio input{margin-top:0}
#bulk{scroll-margin-top:80px}