:root{color-scheme:dark;--bg:#08100d;--panel:#111b17;--text:#edf7f1;--muted:#aabcb3;--green:#78d4a2;--line:rgba(120,212,162,.25);font-family:'Segoe UI',system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;color:var(--text);background:radial-gradient(ellipse at 80% 18%,#1b382846,transparent 48%),var(--bg);line-height:1.6}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid var(--green);outline-offset:6px}header,main,footer{max-width:1240px;margin:auto}header{padding:28px 36px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:16px;font-size:26px;letter-spacing:-1px;font-weight:650}.brand img{width:68px;height:68px;object-fit:contain}.brand small{display:block;font-size:9px;letter-spacing:2.1px;color:var(--muted);font-weight:500}nav{display:flex;gap:30px;font-size:14px;color:var(--muted)}nav a:hover{color:var(--green)}.hero{display:grid;grid-template-columns:1.12fr 1fr;gap:70px;align-items:center;padding:90px 36px 96px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:2.1px;color:var(--green);margin:0 0 22px}.eyebrow span{display:inline-block;width:7px;height:7px;margin-right:9px;border-radius:50%;background:var(--green)}h1{font-size:clamp(38px,4.5vw,60px);line-height:1.13;letter-spacing:-2px;font-weight:550;margin:0 0 28px}h1 em{color:var(--green);font-style:normal}.lead{color:var(--muted);font-size:17px;max-width:480px}.actions{margin-top:35px;display:flex;flex-direction:column;align-items:flex-start;gap:16px}.primary{background:var(--green);color:#08100d;padding:15px 22px;border-radius:8px;font-weight:650;font-size:14px}.primary:hover{background:#a0f0c2}.primary span{margin-left:24px}.status{font-size:12px;color:var(--muted)}.board-wrap{padding:23px;background:linear-gradient(140deg,#24382b,#111b17);border:1px solid var(--line);border-radius:18px;box-shadow:0 28px 90px #0005;transform:rotate(-3deg)}.board-label{display:flex;justify-content:space-between;font-size:10px;letter-spacing:2px;color:var(--green);margin:0 0 20px}.board{display:grid;grid-template-columns:repeat(8,1fr);border:5px solid #0a130e;aspect-ratio:1}.board>span{display:grid;place-items:center;font-family:'Segoe UI Symbol','DejaVu Sans',serif;font-size:clamp(22px,3.15vw,43px);line-height:1}.light{background:#a9c4ae}.dark{background:#456e55}.black-piece{color:#10271b;text-shadow:0 1px 0 #d4ead477}.white-piece{color:#fff9e8;text-shadow:0 2px 2px #0009}.board-caption{display:flex;flex-direction:column;gap:14px;text-align:center;font-size:11px;color:var(--muted);margin-top:12px}.details{padding:64px 36px;border-top:1px solid var(--line)}h2{font-size:34px;letter-spacing:-1px;font-weight:550;line-height:1.25;margin:0 0 32px}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.features article{border-top:1px solid var(--line);padding:24px 0}.number{font-size:12px;color:var(--green)}h3{font-size:19px;font-weight:600;margin:14px 0 10px}.features p,.about p{color:var(--muted);font-size:15px}.about{margin:0 36px 70px;padding:40px;background:var(--panel);border:1px solid var(--line);border-radius:14px}.about p{max-width:750px}.about .eyebrow{color:var(--green);font-size:11px}.about .muted{font-size:13px}footer{padding:28px 36px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:12px}.skip{position:absolute;left:20px;top:-80px;background:var(--green);color:var(--bg);padding:10px}.skip:focus{top:8px}@media(max-width:800px){.hero{grid-template-columns:1fr;gap:48px;padding:55px 24px}.board-wrap{max-width:450px;justify-self:center;width:100%;transform:none}.board>span{font-size:clamp(24px,7vw,42px)}header{padding:18px 24px}.brand{font-size:22px}.brand img{width:52px;height:52px}nav{gap:14px;font-size:12px}.features{grid-template-columns:1fr;gap:5px}.details{padding:45px 24px}.about{margin:0 24px 40px;padding:25px}footer{padding:25px 24px;flex-direction:column}h1{letter-spacing:-1.5px}h2{font-size:29px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.product-frame{display:grid;grid-template-columns:1.5fr 1fr;gap:50px;border-top:1px solid var(--line);padding-top:28px}.product-frame p{color:var(--muted)}.dummy-badge{font-size:10px;letter-spacing:1.2px;border:1px solid var(--line);padding:6px 10px;border-radius:5px;color:var(--green)}.purchase{padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:12px}.purchase .price{font-size:28px;color:var(--text);margin:10px 0 22px}.purchase button{width:100%;padding:15px;font:inherit;font-weight:600;border:1px solid var(--line);border-radius:8px;background:#22372a;color:#aabcb3;cursor:not-allowed}.purchase p:last-child{font-size:12px}summary{cursor:pointer;padding:18px 0;color:var(--green)}dt{color:var(--muted);font-size:12px}dd{margin:0 0 14px}details{border-top:1px solid var(--line);margin-top:25px}@media(max-width:800px){.product-frame{grid-template-columns:1fr;gap:24px}}