:root{--bg:#f3efe8;--ink:#17191c;--brass:#a8742c;--deep:#1f3a3d;--mut:#5b5f63;--line:#d8d0c2}
@media(prefers-color-scheme:dark){:root{--bg:#121516;--ink:#efe9dd;--mut:#a5a9a8;--line:#2c3335;--deep:#d9b26f;--brass:#d9b26f}}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;font-weight:400;line-height:1.05;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.6rem,8vw,6rem)}h2{font-size:clamp(1.9rem,4.5vw,3.2rem)}a{color:inherit}
.w{max-width:1120px;margin:0 auto;padding:0 22px}
header{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:64px}
.brand{font-family:Georgia,serif;font-size:1rem;text-decoration:none;max-width:16ch;line-height:1.15}
nav{display:flex;gap:22px;align-items:center}nav a{text-decoration:none;font-size:.95rem}nav a:hover{color:var(--brass)}
.btn{display:inline-block;background:var(--ink);color:var(--bg);padding:.8em 1.4em;text-decoration:none;font-weight:600;border-radius:2px;min-height:44px}
.btn.alt{background:none;color:var(--ink);border:1px solid var(--ink)}.btn:hover{outline:2px solid var(--brass);outline-offset:3px}
:focus-visible{outline:3px solid var(--brass);outline-offset:3px}
#mb{display:none;background:none;border:1px solid var(--ink);color:var(--ink);min-height:44px;padding:0 14px}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;padding:70px 0 60px}
.hero p{max-width:46ch;color:var(--mut)}.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.valve{width:100%;height:auto;color:var(--ink)}.valve .b{fill:var(--brass)}.valve .s{fill:none;stroke:currentColor;stroke-width:2}
.tag{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass);margin-bottom:14px}
section{padding:64px 0;border-top:1px solid var(--line)}
.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px}
.steps{counter-reset:s;list-style:none;padding:0;margin:0}.steps li{counter-increment:s;display:grid;grid-template-columns:56px 1fr;padding:18px 0;border-bottom:1px solid var(--line)}
.steps li:before{content:counter(s,decimal-leading-zero);font-family:Georgia,serif;font-size:1.6rem;color:var(--brass)}.steps b{display:block}
.band{background:var(--deep);color:#f3efe8;border:0}.band .btn{background:#f3efe8;color:#1f3a3d}
details{border-bottom:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font-weight:600}
footer{padding:48px 0;border-top:1px solid var(--line);color:var(--mut);font-size:.95rem}
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s,transform .7s}.rv.in{opacity:1;transform:none}
.dial{transition:transform 1.2s cubic-bezier(.2,.7,.2,1);transform-origin:200px 150px}.in .dial,.hero .dial{transform:rotate(-40deg)}
@media(max-width:800px){#mb{display:block}nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg);flex-direction:column;align-items:flex-start;padding:20px 22px;border-bottom:1px solid var(--line)}nav.o{display:flex}
.hero,.split{grid-template-columns:1fr;gap:28px}.hero{padding-top:40px}.hd{display:none}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}.rv{opacity:1;transform:none}}