*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--fg:#000;--bg:#fff;--mut:#555;--line:#000;--soft:#f4f4f4}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{font-family:'Courier New',Courier,monospace;background:var(--bg);color:var(--fg);line-height:1.65;font-size:16px}
a{color:var(--fg)}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
.narrow{max-width:640px}
.top{position:sticky;top:0;background:var(--bg);border-bottom:2px solid var(--line);z-index:10}
.bar{display:flex;align-items:center;gap:20px;flex-wrap:wrap;padding-top:12px;padding-bottom:12px}
.brand{font-weight:700;text-decoration:none;font-size:18px;margin-right:auto}
.nav{display:flex;gap:18px;flex-wrap:wrap}
.nav a{text-decoration:none;font-size:14px}
.nav a:hover{text-decoration:underline}
.lang{display:flex;border:2px solid var(--line)}
.lang button{font:inherit;font-size:13px;font-weight:700;background:var(--bg);color:var(--fg);border:0;padding:4px 9px;cursor:pointer}
.lang button+button{border-left:2px solid var(--line)}
.lang button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}
section{padding:72px 0;border-bottom:2px solid var(--line)}
section.alt{background:var(--soft)}
.hero{padding:96px 0 88px}
.kicker{color:var(--mut);margin-bottom:16px;font-size:14px}
h1{font-size:clamp(30px,6vw,52px);line-height:1.15;margin-bottom:24px;max-width:18ch}
h2{font-size:28px;margin-bottom:28px}
h2::before{content:"# "}
h3{font-size:17px;margin-bottom:8px}
.lead{max-width:60ch;font-size:18px;margin-bottom:32px}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;font:inherit;font-weight:700;text-decoration:none;background:var(--fg);color:var(--bg);border:2px solid var(--fg);padding:12px 22px;cursor:pointer}
.btn:hover{background:var(--bg);color:var(--fg)}
.btn.ghost{background:var(--bg);color:var(--fg)}
.btn.ghost:hover{background:var(--fg);color:var(--bg)}
.btn:disabled{opacity:.5;cursor:wait}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
article{border:2px solid var(--line);padding:22px;background:var(--bg)}
.price{margin-bottom:24px}
.amount span{font-size:clamp(44px,9vw,72px);font-weight:700}
.amount small{font-size:18px}
.plus{font-size:20px}
.list{padding-left:20px;max-width:62ch}
.list li{margin-bottom:8px}
details{border:2px solid var(--line);margin-bottom:12px;background:var(--bg)}
summary{cursor:pointer;font-weight:700;padding:14px 18px;list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"+ "}
details[open] summary::before{content:"- "}
details p{padding:0 18px 16px}
form{display:flex;flex-direction:column;gap:16px;margin-top:20px}
label{display:flex;flex-direction:column;gap:6px;font-weight:700;font-size:14px}
input,textarea{font:inherit;font-weight:400;color:var(--fg);background:var(--bg);border:2px solid var(--line);padding:10px 12px;border-radius:0;width:100%}
input:focus,textarea:focus,button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--fg);outline-offset:2px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
#form-status{min-height:1.6em;font-weight:700}
#form-status.err::before{content:"! "}
#form-status.ok::before{content:"> "}
footer{padding:32px 0;font-size:14px;color:var(--mut)}
@media(max-width:600px){section{padding:52px 0}.hero{padding:64px 0}.nav{order:3;width:100%}}