:root{
  --ink:#0E2A26;--paper:#F1F5F2;--surface:#FFFFFF;--accent:#2F8F75;--accent-soft:#E1EFE8;
  --line:#D3E0DA;--text:#0E2A26;--muted:#56706A;--warn:#9A3F3F;--ok:#2F8F75;
  --hero-bg:#0E2A26;--hero-text:#EEF5F1;--hero-muted:#A9C4BB;--leaf:#8FD3B4;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Public Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0B1A18;--surface:#122724;--text:#E6F0EC;--muted:#9DB8AF;--line:#23403B;--accent:#6CC3A2;--accent-soft:#173530;
  --ink:#E6F0EC;--ok:#6CC3A2;--warn:#E5928A;--hero-bg:#081412;}}
:root[data-theme="dark"]{--paper:#0B1A18;--surface:#122724;--text:#E6F0EC;--muted:#9DB8AF;--line:#23403B;--accent:#6CC3A2;--accent-soft:#173530;--ink:#E6F0EC;--ok:#6CC3A2;--warn:#E5928A;--hero-bg:#081412}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 72px);scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px}
header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{font-family:var(--serif);font-size:22px;font-weight:600;text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.logo span{color:var(--accent)}
nav.main{display:flex;gap:24px;font-size:15px}
nav.main a{text-decoration:none;color:var(--muted)}nav.main a:hover,nav.main a[aria-current]{color:var(--text)}
.hdr-actions{display:flex;gap:10px;align-items:center}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 10px;font:600 14px var(--sans);color:var(--text)}
@media (max-width:900px){nav.main{display:none;position:absolute;left:0;right:0;top:64px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;padding:16px 24px;gap:14px}
 nav.main.open{display:flex}.menu-btn{display:block}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 15px/1 var(--sans);padding:14px 20px;border-radius:6px;border:1px solid var(--text);background:var(--text);color:var(--paper);text-decoration:none;cursor:pointer}
.btn.ghost{background:transparent;color:var(--text)}.btn.small{padding:10px 14px;font-size:14px}.btn:hover{filter:brightness(1.1)}
.btn[disabled]{opacity:.6;cursor:default}
/* hero */
.hero{padding:96px 0 80px;background:var(--hero-bg);color:var(--hero-text)}
.hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(38px,5.6vw,66px);line-height:1.05;letter-spacing:-.02em;margin:0 0 24px;max-width:15ch}
.hero p.lede{font-size:19px;color:var(--hero-muted);max-width:56ch;margin:0 0 32px}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px}
.hero .btn{background:var(--leaf);border-color:var(--leaf);color:#0E2A26}
.hero .btn.ghost{background:transparent;color:var(--hero-text);border-color:var(--hero-muted)}
.track{margin-top:72px;border-top:1px solid rgba(255,255,255,.14);padding-top:28px}
.track-caption{font-size:14px;color:var(--hero-muted);margin:0 0 20px}
.chain{display:grid;grid-template-columns:repeat(4,1fr);position:relative;list-style:none;margin:0;padding:0}
.chain::before{content:"";position:absolute;left:12.5%;right:12.5%;top:21px;height:2px;background:repeating-linear-gradient(90deg,var(--leaf) 0 10px,transparent 10px 16px)}
.chain li{position:relative;text-align:center;padding:0 10px}
.chain .node{width:44px;height:44px;margin:0 auto 14px;border-radius:50%;background:var(--hero-bg);border:2px solid var(--leaf);display:grid;place-items:center;font-family:var(--serif);font-size:19px;font-weight:600;position:relative;z-index:1}
.chain li:last-child .node{background:var(--leaf);color:#0E2A26}
.chain h3{font-size:16px;margin:0 0 4px;font-weight:600}.chain p{margin:0;font-size:14px;color:var(--hero-muted);line-height:1.45}
@media (max-width:720px){.chain{grid-template-columns:1fr;gap:22px}
 .chain::before{left:21px;right:auto;top:22px;bottom:22px;width:2px;height:auto;background:repeating-linear-gradient(180deg,var(--leaf) 0 10px,transparent 10px 16px)}
 .chain li{display:grid;grid-template-columns:44px 1fr;gap:16px;text-align:left;padding:0}.chain .node{margin:0}}
/* sections */
section.block{padding:88px 0;border-top:1px solid var(--line)}
section.block:first-of-type{border-top:0}
.block h2,.page h1{font-family:var(--serif);font-weight:500;font-size:clamp(30px,3.6vw,42px);line-height:1.12;letter-spacing:-.015em;margin:0 0 16px;max-width:24ch}
.page h1{font-size:clamp(34px,4.5vw,52px)}
.block .intro,.page .intro{color:var(--muted);max-width:60ch;margin:0 0 48px;font-size:18px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:40px}}
.steps{list-style:none;margin:0;padding:0;counter-reset:s}
.steps li{counter-increment:s;display:grid;grid-template-columns:56px 1fr;gap:8px;padding:22px 0;border-bottom:1px solid var(--line)}
.steps li:first-child{border-top:1px solid var(--line)}
.steps li::before{content:counter(s);font-family:var(--serif);font-size:28px;color:var(--accent);line-height:1}
.steps h3{margin:0 0 4px;font-size:18px;font-weight:600}.steps p{margin:0;color:var(--muted)}
.audience{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:36px}
.audience h3.aud{font-family:var(--serif);font-size:28px;font-weight:500;margin:0 0 8px}
.audience>p{color:var(--muted);margin:0 0 28px}.audience ul{margin:0 0 28px;padding:0;list-style:none}
.audience li{padding:12px 0 12px 28px;border-top:1px solid var(--line);position:relative}
.audience li::before{content:"";position:absolute;left:4px;top:21px;width:10px;height:10px;border-radius:50%;border:2px solid var(--accent)}
.rules{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}@media (max-width:760px){.rules{grid-template-columns:1fr}}
.rules h3{font-size:15px;font-weight:600;margin:0 0 12px;color:var(--muted)}
.rule{padding:16px 0;border-top:1px solid var(--line)}.rule strong{display:block;font-weight:600;margin-bottom:2px}.rule span{color:var(--muted);font-size:15.5px}
.rules .no strong{color:var(--warn)}.rules .yes strong{color:var(--ok)}
/* catalog */
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.cat{display:block;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:24px;text-decoration:none}
.cat:hover{border-color:var(--accent)}
.cat h3{font-family:var(--serif);font-size:22px;font-weight:500;margin:0 0 6px}.cat p{margin:0 0 10px;color:var(--muted);font-size:15px}
.cat small{color:var(--accent);font-weight:600}
.catsec{padding:40px 0;border-top:1px solid var(--line)}
.catsec h2{font-family:var(--serif);font-weight:500;font-size:30px;margin:0 0 6px}
.catsec>p{color:var(--muted);margin:0 0 20px;max-width:60ch}
.plist{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}
.plist a{display:flex;justify-content:space-between;gap:12px;align-items:baseline;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:8px;text-decoration:none}
.plist a:hover{border-color:var(--accent)}.plist a span{color:var(--muted);font-size:13px;white-space:nowrap}
.crumbs{font-size:14px;color:var(--muted);margin:0 0 20px}.crumbs a{text-decoration:none}
.product{display:grid;grid-template-columns:1.2fr .8fr;gap:56px}@media (max-width:860px){.product{grid-template-columns:1fr}}
.spec{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:28px}
.spec dl{margin:0}.spec dt{font-size:13px;color:var(--muted);margin-top:16px}.spec dt:first-child{margin-top:0}.spec dd{margin:2px 0 0;font-weight:600}
.notice{background:var(--accent-soft);border-radius:8px;padding:16px 18px;font-size:15px;color:var(--muted);margin:24px 0 0}
.related{margin-top:56px}.related h2{font-size:20px;margin:0 0 14px}
/* forms */
.tabs{display:inline-flex;border:1px solid var(--line);border-radius:8px;padding:4px;background:var(--surface);margin-bottom:28px}
.tabs button{font:600 15px var(--sans);padding:10px 18px;border:0;border-radius:5px;background:transparent;color:var(--muted);cursor:pointer}
.tabs button[aria-selected="true"]{background:var(--text);color:var(--paper)}
form.apply{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:32px}form.apply[hidden]{display:none}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}.grid .full{grid-column:1/-1}@media (max-width:640px){.grid{grid-template-columns:1fr}}
label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}label .opt{font-weight:400;color:var(--muted)}
input,select,textarea{width:100%;font:16px var(--sans);color:var(--text);background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:12px 14px}
textarea{min-height:96px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:transparent}
fieldset{border:0;padding:0;margin:0}fieldset legend{font-size:14px;font-weight:600;margin-bottom:8px;padding:0}
.checks{display:flex;flex-wrap:wrap;gap:10px}
.checks label{display:flex;align-items:center;gap:8px;font-weight:400;border:1px solid var(--line);border-radius:6px;padding:10px 12px;margin:0;cursor:pointer;background:var(--paper)}
.checks input{width:auto}
.attest{display:flex;gap:12px;align-items:flex-start;font-weight:400;font-size:15px;color:var(--muted);background:var(--accent-soft);border-radius:6px;padding:14px 16px;margin:0}
.attest input{width:auto;margin-top:5px}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:24px}
.form-foot small{color:var(--muted);max-width:52ch}
.status{margin-top:18px;padding:14px 16px;border-radius:6px;font-size:15px}
.status.ok{background:color-mix(in srgb,var(--ok) 14%,transparent);color:var(--ok)}
.status.err{background:color-mix(in srgb,var(--warn) 14%,transparent);color:var(--warn)}
/* order lines */
.lines{border:1px solid var(--line);border-radius:8px;overflow:hidden}
.line{display:grid;grid-template-columns:1fr 130px 90px 40px;gap:10px;padding:10px;border-top:1px solid var(--line);align-items:center}
.line:first-child{border-top:0}.line button{background:none;border:0;color:var(--warn);font-size:20px;cursor:pointer}
@media (max-width:640px){.line{grid-template-columns:1fr 1fr;} .line select{grid-column:1/-1}}
/* faq */
details{border-top:1px solid var(--line);padding:18px 0}details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}summary::after{content:"+";font-family:var(--serif);font-size:24px;line-height:1;color:var(--accent)}
details[open] summary::after{content:"–"}details p{color:var(--muted);margin:12px 0 0;max-width:68ch}
/* login / portal */
.auth{max-width:440px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:36px;text-align:center}
.auth h1{font-family:var(--serif);font-weight:500;font-size:34px;margin:0 0 8px}.auth p{color:var(--muted);margin:0 0 24px}
.auth .btn{width:100%;margin-bottom:10px}
.portal-bar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:16px 0;border-bottom:1px solid var(--line);margin-bottom:40px;font-size:15px;color:var(--muted)}
.ptabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:28px}
.ptabs button{font:600 14px var(--sans);padding:10px 14px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--muted);cursor:pointer}
.ptabs button[aria-selected="true"]{background:var(--text);color:var(--paper);border-color:var(--text)}
.panel[hidden]{display:none}
.page{padding:64px 0 96px}.page.prose p,.page.prose li{color:var(--muted)}.page.prose h2{font-size:20px;margin:32px 0 8px}
footer{border-top:1px solid var(--line);padding:48px 0 56px;font-size:14px;color:var(--muted)}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}@media (max-width:700px){footer .cols{grid-template-columns:1fr}}
footer p{margin:0 0 10px;max-width:70ch}footer nav a{display:block;text-decoration:none;margin-bottom:6px}