:root{--ink:#101218;--muted:#667084;--paper:#f8f7f2;--panel:#fff;--line:#dedbd0;--charcoal:#15171f;--accent:#c7972c;--accent-2:#0f766e;--soft:#ebe6d9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);line-height:1.6}a{color:inherit;text-decoration:none}p{margin:0 0 1rem}.container{width:min(1160px,calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(248,247,242,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;min-height:74px;gap:22px}.logo{display:flex;align-items:center;gap:12px;font-weight:850;letter-spacing:.02em}.logo-mark{width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,var(--charcoal),#343747);position:relative;box-shadow:inset 0 0 0 2px rgba(255,255,255,.08),0 12px 32px rgba(17,18,24,.14)}.logo-mark:before{content:"";position:absolute;width:14px;height:14px;border:2px solid var(--accent);border-radius:6px;left:12px;top:11px}.logo-mark:after{content:"";position:absolute;width:6px;height:6px;background:var(--accent);border-radius:50%;right:9px;bottom:9px}.nav-links{display:flex;align-items:center;gap:20px;font-size:.94rem;color:#363b49}.nav-links a{padding:8px 0;border-bottom:2px solid transparent}.nav-links a:hover{border-bottom-color:var(--accent)}.nav-cta{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:10px 16px;background:var(--charcoal);color:#fff;font-weight:750}.menu-button{display:none;border:0;background:var(--charcoal);color:#fff;border-radius:999px;padding:10px 14px;font-weight:700}.hero{overflow:hidden;border-bottom:1px solid var(--line);background:radial-gradient(circle at 14% 18%,rgba(199,151,44,.22),transparent 28%),radial-gradient(circle at 82% 8%,rgba(15,118,110,.18),transparent 30%),linear-gradient(180deg,#fbfaf7 0%,#f0ecdf 100%)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;min-height:720px;padding:70px 0}.eyebrow{display:inline-flex;align-items:center;gap:10px;padding:8px 12px;border:1px solid var(--line);background:rgba(255,255,255,.65);border-radius:999px;color:#343747;font-size:.88rem;font-weight:750;margin-bottom:20px}.eyebrow .dot{width:8px;height:8px;background:var(--accent-2);border-radius:50%}h1{font-size:clamp(2.7rem,7vw,6.2rem);line-height:.9;letter-spacing:-.075em;margin:0 0 24px;max-width:820px}.lede{font-size:1.18rem;color:#384050;max-width:680px;margin-bottom:28px}.actions{display:flex;gap:14px;flex-wrap:wrap;margin:32px 0}.button{display:inline-flex;align-items:center;justify-content:center;border-radius:18px;padding:14px 20px;border:1px solid var(--charcoal);font-weight:800;transition:.2s ease}.button.primary{background:var(--charcoal);color:#fff}.button.secondary{background:transparent;color:var(--charcoal)}.button:hover{transform:translateY(-1px);box-shadow:0 10px 30px rgba(17,18,24,.12)}.trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:42px}.trust-card{padding:18px;border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.7)}.trust-card strong{display:block;font-size:.94rem}.trust-card span{display:block;color:var(--muted);font-size:.9rem;margin-top:4px}.device-stage{position:relative;min-height:520px}.ring{position:absolute;inset:10% 4% auto auto;width:420px;height:420px;border-radius:50%;border:1px solid rgba(21,23,31,.12);background:rgba(255,255,255,.34)}.device{position:absolute;left:10%;top:6%;width:310px;min-height:470px;background:linear-gradient(145deg,#1d1f29,#090a0e);border-radius:48px;transform:rotate(-7deg);box-shadow:0 46px 90px rgba(16,18,24,.35);border:1px solid rgba(255,255,255,.18);padding:28px}.device-screen{height:210px;border-radius:30px;background:linear-gradient(180deg,#f2eee3,#d8d0be);color:#11141b;padding:24px;display:flex;flex-direction:column;justify-content:space-between}.device-screen small{text-transform:uppercase;letter-spacing:.12em;color:#5e6270;font-weight:800}.confirm-line{height:10px;border-radius:99px;background:#262936;margin:10px 0}.confirm-line.short{width:62%}.device-controls{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}.device-btn{height:82px;border-radius:26px;background:#2a2d3a;border:1px solid rgba(255,255,255,.08)}.float-card{position:absolute;right:0;bottom:42px;width:270px;background:#fff;border:1px solid var(--line);border-radius:28px;padding:22px;box-shadow:0 24px 70px rgba(16,18,24,.16)}.float-card strong{font-size:1.1rem}.float-card .meter{height:10px;background:#ece8de;border-radius:99px;overflow:hidden;margin-top:16px}.float-card .meter span{display:block;width:82%;height:100%;background:var(--accent-2)}.section{padding:96px 0}.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-header{display:flex;justify-content:space-between;align-items:end;gap:34px;margin-bottom:42px}.section-title{font-size:clamp(2rem,4vw,4.2rem);line-height:.95;letter-spacing:-.055em;margin:0}.section-copy{color:var(--muted);max-width:520px;font-size:1.04rem}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.card{background:var(--panel);border:1px solid var(--line);border-radius:32px;padding:30px;box-shadow:0 16px 50px rgba(16,18,24,.05)}.card.dark{background:var(--charcoal);color:#fff;border-color:#272a35}.card h3{font-size:1.35rem;margin:0 0 12px;letter-spacing:-.02em}.card p,.card li{color:#667084}.card.dark p,.card.dark li{color:#d5d8df}.icon{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;background:#f0eadc;color:#11141b;font-weight:900;margin-bottom:22px}.card.dark .icon{background:#2c303d;color:var(--accent)}.spec-table{width:100%;border-collapse:collapse;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:#fff}.spec-table th,.spec-table td{text-align:left;padding:18px 20px;border-bottom:1px solid var(--line)}.spec-table th{width:34%;color:#232733;background:#f4f0e6}.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}.steps{counter-reset:step;display:grid;gap:16px}.step{counter-increment:step;display:grid;grid-template-columns:64px 1fr;gap:18px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:28px;padding:22px}.step:before{content:counter(step);width:44px;height:44px;border-radius:15px;display:grid;place-items:center;background:var(--charcoal);color:#fff;font-weight:900}.notice{background:#fff7e3;border:1px solid #ead6a2;border-radius:26px;padding:22px;color:#4a3714}.notice strong{display:block;margin-bottom:6px}.contact-panel{display:grid;grid-template-columns:1fr .8fr;gap:28px;align-items:start}.form{background:#fff;border:1px solid var(--line);border-radius:32px;padding:28px}.form label{display:block;font-size:.88rem;font-weight:800;margin-bottom:8px}.form input,.form textarea,.form select{width:100%;border:1px solid var(--line);border-radius:16px;padding:14px 15px;font:inherit;background:#fbfaf7;color:var(--ink);margin-bottom:16px}.form textarea{min-height:138px;resize:vertical}.form button{border:0;cursor:pointer}.address-block{white-space:pre-line}.footer{background:var(--charcoal);color:#fff;padding:52px 0 34px}.footer-grid{display:grid;grid-template-columns:1.1fr repeat(3,.7fr);gap:34px}.footer a{display:block;color:#d5d8df;margin:8px 0}.footer p{color:#d5d8df}.footer-bottom{border-top:1px solid #303440;margin-top:38px;padding-top:22px;color:#b7bbc5;font-size:.9rem}.page-hero{padding:86px 0 58px;background:linear-gradient(180deg,#fbfaf7,#f0ecdf);border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(2.5rem,6vw,5rem)}.breadcrumb{color:var(--muted);font-weight:750;margin-bottom:16px}.policy{max-width:880px}.policy h2{font-size:2rem;margin:38px 0 12px;letter-spacing:-.03em}.policy h3{font-size:1.25rem;margin:28px 0 10px}.policy ul{padding-left:22px}.policy li{margin-bottom:8px}.badge-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.badge{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;font-weight:750;font-size:.9rem}.product-band{background:var(--charcoal);color:#fff;border-radius:44px;padding:44px;display:grid;grid-template-columns:1fr .85fr;gap:30px;align-items:center}.product-band p{color:#d5d8df}.mini-device{height:280px;border-radius:36px;background:linear-gradient(145deg,#323646,#0d0f15);box-shadow:inset 0 0 0 1px rgba(255,255,255,.1);position:relative}.mini-device:before{content:"BitBox";position:absolute;left:34px;top:34px;color:#fff;font-weight:900;letter-spacing:.03em}.mini-device:after{content:"Confirm on device";position:absolute;left:34px;right:34px;bottom:34px;height:84px;border-radius:26px;background:#e7dec9;color:#11141b;display:grid;place-items:center;font-weight:850}@media(max-width:920px){.nav-links{display:none;position:absolute;left:20px;right:20px;top:74px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:0 20px 60px rgba(16,18,24,.14)}.nav-links.open{display:grid}.nav-links a{padding:10px}.nav-cta{display:none}.menu-button{display:inline-flex}.hero-grid,.contact-panel,.product-band{grid-template-columns:1fr}.hero-grid{min-height:0;padding:60px 0}.device-stage{min-height:520px}.grid-3,.grid-2,.trust-row,.footer-grid{grid-template-columns:1fr}.section-header{display:block}.section-copy{margin-top:18px}}@media(max-width:540px){.container{width:min(100% - 28px,1160px)}.section{padding:68px 0}.device{left:4%;width:270px}.float-card{right:2%;width:230px}.product-band{padding:28px;border-radius:30px}}