:root{--ink:#12283A;--ink2:#1D3A52;--steel:#5B7083;--paper:#F3F6F8;--line:#D5DDE3;--brass:#B8862F;--white:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;font-size:17px}
a{color:inherit}
:focus-visible{outline:3px solid var(--brass);outline-offset:3px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0}
h2{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:12px}
section{padding:72px 0}
.lead{max-width:60ch;color:var(--steel);margin:0 0 36px}

header{background:var(--ink);color:var(--white)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 24px;max-width:1120px;margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:700;font-size:1.25rem;letter-spacing:-.01em}
nav{display:flex;gap:26px;align-items:center;flex-wrap:wrap}
nav a{text-decoration:none;font-size:.95rem;color:#C9D6E0}
nav a:hover{color:var(--white)}
.btn{display:inline-block;padding:13px 24px;border-radius:4px;font-weight:600;text-decoration:none;border:2px solid var(--brass);background:var(--brass);color:var(--ink);cursor:pointer;font-size:1rem;font-family:inherit}
.btn:hover{background:#CC9A40;border-color:#CC9A40}
.btn.ghost{background:transparent;color:var(--white)}
.btn.ghost:hover{background:rgba(255,255,255,.1)}
nav .btn{padding:9px 18px;color:var(--ink)}

.hero{background:var(--ink);color:var(--white);padding:40px 0 88px}
.hero .wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.1rem,4.6vw,3.5rem);font-weight:800;margin-bottom:20px}
.hero p{color:#C9D6E0;max-width:48ch;margin:0 0 32px;font-size:1.1rem}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.hero svg{width:100%;max-width:540px;justify-self:center;height:auto}

.group{display:grid;grid-template-columns:260px 1fr;gap:32px;padding:32px 0;border-top:2px solid var(--ink)}
.group:last-of-type{border-bottom:2px solid var(--ink)}
.group h3{font-size:1.35rem}
.group h3 small{display:block;font-size:.9rem;font-weight:400;color:var(--steel);letter-spacing:0;margin-top:6px}
.sub{margin:0 0 14px}
.sub b{display:block;font-size:.9rem;margin-bottom:6px;color:var(--steel);font-weight:600}
.series{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none}
.series li{background:var(--white);border:1px solid var(--line);border-radius:3px;padding:3px 10px;font-size:.92rem;font-variant-numeric:tabular-nums}
.also{margin-top:28px;color:var(--steel)}

.swap{background:var(--white)}
table{border-collapse:collapse;width:100%;max-width:720px}
th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line)}
th{font-size:.9rem;color:var(--steel);font-weight:600;border-bottom:2px solid var(--ink)}
td:first-child{font-weight:700;white-space:nowrap}
.tw{overflow-x:auto}

.terms{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 56px;margin:0}
.terms div{border-left:4px solid var(--brass);padding-left:18px}
.terms dt{font-weight:700;margin-bottom:2px}
.terms dd{margin:0;color:var(--steel)}

.inq{background:var(--ink);color:var(--white)}
.inq .lead{color:#C9D6E0}
.inq .wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px}
form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:block;font-size:.92rem;margin-bottom:6px;color:#C9D6E0}
input,textarea{width:100%;padding:12px 14px;border:1px solid #3B5870;border-radius:4px;background:var(--ink2);color:var(--white);font:inherit}
input::placeholder,textarea::placeholder{color:#8EA3B4}
textarea{min-height:130px;resize:vertical}
.full{grid-column:1/-1}
.hp{position:absolute;left:-9999px}
form .btn{justify-self:start}
.contact p{margin:0 0 6px}
.contact a{color:var(--white)}

footer{padding:28px 0;color:var(--steel);font-size:.9rem}

@media(max-width:860px){
 .hero .wrap,.inq .wrap{grid-template-columns:1fr}
 .hero svg{max-width:300px;order:-1}
 .group{grid-template-columns:1fr;gap:16px}
 .terms,form{grid-template-columns:1fr}
 nav a:not(.btn){display:none}
 section{padding:52px 0}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.series li a{display:block;padding:3px 10px;text-decoration:none;font-weight:600}
.series li:has(a){padding:0;border-color:var(--brass)}
.series li a:hover{background:var(--ink);color:var(--white)}
.doc{padding:40px 0 64px}
.crumbs{font-size:.9rem;color:var(--steel);margin:0 0 18px}
.crumbs a{color:var(--steel)}
.doc h1{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:800;margin-bottom:10px}
.kicker{color:var(--steel);margin:0 0 28px;max-width:70ch}
.block{background:var(--white);border-left:4px solid var(--brass);padding:18px 22px;margin:0 0 18px}
.block p{margin:0 0 10px;max-width:84ch}
.lrow{display:flex;flex-wrap:wrap;gap:16px 32px;align-items:flex-start;margin-bottom:12px}
.lcell{flex:1 1 300px;min-width:0}
.doc img{max-width:100%;height:auto}
.doc table.data{border-collapse:collapse;font-size:.93rem;margin:8px 0 16px;width:auto;max-width:none}
.doc .data th,.doc .data td{border:1px solid var(--line);padding:6px 10px;text-align:left;vertical-align:middle;font-variant-numeric:tabular-nums}
.doc .data th{background:var(--ink);color:var(--white);font-weight:600;border-bottom:1px solid var(--ink)}
.doc .data td:first-child{font-weight:inherit;white-space:normal}
.doc .data.decode td:first-child{font-weight:700;white-space:nowrap}
.cta-end{margin-top:32px;padding:24px;background:var(--ink);color:var(--white);display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-end p{margin:0}
.doc u{text-decoration:none}
.doc .data caption{text-align:left;font-weight:600;padding:0 0 6px}

/* catalog pages, colour version */
nav .btn{white-space:nowrap}
footer{background:var(--ink);color:#9FB2C2;padding:28px 0}
.pagehead{background:linear-gradient(135deg,#12283A 0%,#1D3A52 60%,#2F516B 100%);color:var(--white);padding:36px 0 40px;border-bottom:4px solid var(--brass);position:relative;overflow:hidden}
.pagehead::after{content:"";position:absolute;right:-30px;top:-30px;width:300px;height:300px;background:radial-gradient(circle,rgba(184,134,47,.55) 0 7px,transparent 8px) 0 0/50px 50px;opacity:.35;transform:rotate(-10deg);pointer-events:none}
.pagehead .wrap{position:relative;z-index:1}
.pagehead .crumbs,.pagehead .crumbs a{color:#B9CAD7}
.pagehead h1{color:var(--white);margin-bottom:10px}
.pagehead .kicker{color:#C9D6E0;margin-bottom:22px}
.doc{background:linear-gradient(180deg,#DCE7F0 0,var(--paper) 420px);padding-top:32px}
.block{border:1px solid var(--line);border-top:4px solid var(--brass);border-left:1px solid var(--line);border-radius:6px;box-shadow:0 6px 18px rgba(18,40,58,.07)}
.block.key{background:linear-gradient(135deg,#FFF 0%,#EEF4F9 100%);border-top-color:var(--ink2)}
.block b{color:var(--ink2)}
.bh{font-size:1.2rem;color:var(--ink);margin:0 0 14px}
.bh::before{content:"";display:inline-block;width:10px;height:10px;background:var(--brass);border-radius:2px;margin-right:10px}
.doc .data th{background:linear-gradient(180deg,#2F516B,#1D3A52);border-color:#3B5E78}
.doc .data tr:nth-child(even) td{background:#F3F7FA}
.doc .data.decode td:first-child{color:#8A6420}
.doc .data td img{background:var(--white)}
.cta-end{background:linear-gradient(135deg,#1D3A52,#12283A);border-left:6px solid var(--brass);border-radius:6px}
.doc .data th b{color:inherit}
@media(max-width:520px){.bar{padding:12px 16px;gap:10px}.brand{font-size:1.05rem;gap:8px}.brand svg{width:36px;height:36px}nav .btn{padding:8px 12px;font-size:.88rem}}
.doc .block,.doc .lcell{overflow-wrap:break-word;min-width:0}
.doc .data th,.doc .data td{overflow-wrap:normal}
.note{color:var(--steel);font-size:.9rem;margin:6px 0 4px}
.figs .lcell{flex:1 1 280px}
.doc .figs img{background:var(--white);border:1px solid var(--line);border-radius:4px;padding:6px;box-sizing:border-box}
.doc sup,.doc sub{line-height:0}
.doc .data td img{background:transparent;mix-blend-mode:multiply}