:root{
  --ground:#EFF2EE;--paper:#FBFCFA;--text:#15211B;--muted:#5C6B62;--accent:#0E6E52;
  --accent2:#C98A1E;--ink:#0B2A20;--line:#D4DCD4;
  --font:"Segoe UI",system-ui,-apple-system,Roboto,sans-serif;
  --mono:"Cascadia Code","Consolas",ui-monospace,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ground);color:var(--text);font-family:var(--font);line-height:1.6}
a{color:var(--accent)}
img{max-width:100%;display:block}
.wrap{max-width:1000px;margin:0 auto;padding:0 22px}
.wrap-narrow{max-width:720px;margin:0 auto;padding:0 22px}

/* ---- nav ---- */
header.top{border-bottom:1px solid var(--line);background:rgba(239,242,238,.9);backdrop-filter:blur(10px);position:sticky;top:0;z-index:50}
.top-in{display:flex;align-items:center;gap:18px;height:62px}
.brand{font-family:var(--mono);font-weight:700;font-size:17px;text-decoration:none;color:var(--text)}
.brand .dot{color:var(--accent)}.brand .tld{color:var(--muted)}
.nav{margin-left:auto;display:flex;align-items:center;gap:20px}
.nav a{font-size:15px;color:var(--muted);text-decoration:none;font-weight:500}
.nav a:hover{color:var(--text)}
.nav a.nav-cta{background:var(--accent);color:#fff;padding:8px 16px;border-radius:999px;font-weight:600}
.nav a.nav-cta:hover{color:#fff}
.lang-switch{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.lang-btn{border:0;background:transparent;color:var(--muted);font:inherit;font-size:12px;font-weight:600;padding:5px 9px;cursor:pointer}
.lang-btn.active{background:var(--accent);color:#fff}

/* ---- shared bits ---- */
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:600}
h1{font-size:clamp(32px,5vw,52px);line-height:1.04;letter-spacing:-.03em;margin:14px 0 16px}
h1 .g{color:var(--accent)}
.lede{font-size:18px;color:var(--muted);max-width:34em}
.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:999px;padding:13px 22px;font-weight:700;font-size:15px;cursor:pointer;font-family:var(--font);text-decoration:none}
.btn:hover{transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:16px;box-shadow:0 24px 50px -34px rgba(11,42,32,.55);padding:24px}
.feat{display:flex;flex-direction:column;gap:10px;margin:0;padding:0;list-style:none}
.feat li{display:flex;gap:10px;font-size:15px}.feat .ck{color:var(--accent2);font-family:var(--mono)}

/* ---- home: hero + form ---- */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:56px 0 30px}
.price{font-family:var(--mono);font-size:34px;font-weight:700;letter-spacing:-.02em}
.price .cur{font-size:18px;color:var(--accent);margin-right:3px}
.price-note{color:var(--muted);font-size:13px;margin-bottom:14px}
label{display:block;font-size:13px;font-weight:600;margin:12px 0 4px}
input,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font:inherit;background:#fff}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.note{font-size:12px;color:var(--muted);margin-top:10px}
.lock{background:#e7f3ee;border-radius:8px;padding:10px 12px;font-size:13px;margin-top:6px}
.err{background:#fdecea;color:#9b2c2c;border-radius:8px;padding:10px 12px;font-size:14px;margin-top:10px}
.ok{background:#e7f3ee;border-radius:12px;padding:18px;margin-top:10px}
.key{font-family:var(--mono);font-size:22px;font-weight:700;letter-spacing:.06em;background:#11271F;color:#9BE3C4;border-radius:10px;padding:14px;text-align:center;margin:10px 0}
.trust{border-block:1px solid var(--line);background:var(--paper)}
.trust-in{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:20px 0}
.trust .ic{font-size:20px}.trust b{display:block;font-size:14px}.trust small{color:var(--muted);font-size:12px}

/* ---- page head (demo/blog) ---- */
.page-head{padding:48px 0 10px}
.page-head h1{font-size:clamp(30px,4.5vw,46px)}

/* ---- demo steps ---- */
.steps{display:flex;flex-direction:column;gap:18px;padding:24px 0 10px}
.step{display:grid;grid-template-columns:54px 1fr;gap:18px;align-items:start;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:20px}
.step .n{width:40px;height:40px;border-radius:10px;background:var(--accent);color:#fff;font-family:var(--mono);font-weight:700;display:grid;place-items:center}
.step h3{margin:2px 0 6px;font-size:19px;letter-spacing:-.01em}
.step p{margin:0;color:var(--muted)}
.mock{margin-top:12px;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:13px}
.mock-bar{background:#11271F;color:#9BE3C4;font-family:var(--mono);font-size:12px;padding:7px 12px;display:flex;gap:7px;align-items:center}
.mock-bar .d{width:9px;height:9px;border-radius:50%;background:#2F5546}
.mock-body{padding:14px;display:flex;flex-direction:column;gap:8px}
.mock-row{height:10px;border-radius:4px;background:var(--line)}.mock-row.s{width:55%}
.mock-badge{display:inline-flex;align-items:center;gap:7px;background:rgba(14,110,82,.12);color:var(--accent);font-weight:600;font-size:13px;padding:6px 11px;border-radius:8px;align-self:flex-start}
.mock-qr{width:74px;height:74px;background:repeating-conic-gradient(#15211B 0 25%,#fff 0 50%) 0 0/14px 14px;border:4px solid #fff;border-radius:6px}

/* ---- blog ---- */
.blog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;padding:24px 0}
.post-card{display:block;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px;text-decoration:none;color:inherit;transition:transform .12s ease,box-shadow .12s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:0 18px 40px -28px rgba(11,42,32,.5)}
.post-card .tag{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.post-card h3{margin:8px 0 8px;font-size:20px;line-height:1.25;letter-spacing:-.01em}
.post-card p{margin:0;color:var(--muted);font-size:14px}
.post-meta{color:var(--muted);font-size:12px;margin-top:12px}

/* ---- article ---- */
article.post{padding:10px 0 20px}
article.post .meta{color:var(--muted);font-size:14px;margin-bottom:8px}
article.post h1{font-size:clamp(28px,4vw,40px);margin:6px 0 10px}
article.post h2{font-size:24px;letter-spacing:-.02em;margin:34px 0 10px}
article.post h3{font-size:18px;margin:22px 0 6px}
article.post p,article.post li{font-size:16.5px;color:#27332C}
article.post ul{padding-left:22px}
article.post .callout{background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;padding:14px 16px;margin:18px 0}
article.post table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px}
article.post th,article.post td{border:1px solid var(--line);padding:8px 10px;text-align:left}
article.post th{background:#eef2ee}
.cta-band{background:var(--ink);color:#E8F0EA;border-radius:16px;padding:28px;margin:30px 0;text-align:center}
.cta-band h3{margin:0 0 8px;font-size:22px;color:#fff}
.cta-band p{margin:0 0 16px;color:#AFC6B8}

footer{border-top:1px solid var(--line);background:var(--paper);padding:30px 0;color:var(--muted);font-size:13px;margin-top:36px}
footer a{color:var(--muted)}

@media(max-width:820px){
  .hero{grid-template-columns:1fr;gap:26px}
  .trust-in{grid-template-columns:1fr 1fr}
  .blog-grid{grid-template-columns:1fr}
  .nav a:not(.nav-cta){display:none}
}