/* AMZ Store Pro — landing & sales pages.
   Style: corporate-technical (à la ceoneuro.com) — light, clean, blue engineering
   accent, uppercase wordmark, bordered card grids, flat surfaces (no gradients). */
:root{
  --bg:#f5f7fa; --surface:#ffffff; --fg:#101a2b; --muted:#56657a;
  --accent:#1d4ed8; --accent-ink:#1a44bd; --line:#e4e9f0; --ok:#15803d;
  --maxw:1120px;
  --display:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --body:"Public Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0c1320; --surface:#111b2b; --fg:#e8eef6; --muted:#9fb0c4;
  --accent:#5b8bf5; --accent-ink:#80a6ff; --line:#1e2b3d; --ok:#4ade80;
  color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#0c1320; --surface:#111b2b; --fg:#e8eef6; --muted:#9fb0c4;
  --accent:#5b8bf5; --accent-ink:#80a6ff; --line:#1e2b3d; --ok:#4ade80;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--maxw);margin:0 auto;
  padding-left:max(20px,env(safe-area-inset-left,0px));
  padding-right:max(20px,env(safe-area-inset-right,0px))}
section{padding-block:68px}
h1,h2,h3{font-family:var(--display);font-weight:800;text-wrap:balance;line-height:1.12;margin:0 0 .4em;letter-spacing:-.02em}
h1{font-size:clamp(2.2rem,5.2vw,3.5rem)}
h2{font-size:clamp(1.6rem,3.2vw,2.3rem)}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1rem;max-width:64ch}
a{color:var(--accent-ink)}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent-ink);margin:0 0 .9rem}
.lead{font-size:1.18rem;color:var(--muted);max-width:60ch}
.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:7px;
  padding:13px 24px;font-family:var(--body);font-weight:700;font-size:1rem;text-decoration:none;cursor:pointer;
  transition:filter .12s ease}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
/* header */
.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--bg) 90%,transparent);
  backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--line)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);background:var(--bg);z-index:11}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;padding-block:13px;gap:16px}
.brandmark{font-family:var(--display);font-weight:800;font-size:1.02rem;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;color:var(--fg);white-space:nowrap}
.brandmark b{color:var(--accent-ink);font-weight:800}
.nav{display:flex;gap:20px;align-items:center;font-size:.92rem}
.nav a{color:var(--muted);text-decoration:none;font-weight:600}
.nav a:hover{color:var(--fg)}
.nav .btn{padding:9px 16px;color:#fff}
@media(max-width:720px){.nav .hide-sm{display:none}}
/* hero */
.hero{padding-block:72px 44px;border-bottom:1px solid var(--line)}
.hero h1{max-width:16ch}
.stats{display:flex;gap:26px;flex-wrap:wrap;margin-top:30px;font-family:var(--mono);font-size:.82rem;color:var(--muted)}
.stats b{color:var(--fg);font-weight:600}
.stats span{display:flex;flex-direction:column;gap:2px}
/* bands */
.band{background:var(--surface);border-block:1px solid var(--line)}
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
@media(max-width:860px){.g3{grid-template-columns:1fr}.g2{grid-template-columns:1fr}}
.card2{border:1px solid var(--line);border-radius:10px;padding:22px;background:var(--bg)}
.band .card2{background:var(--surface)}
.card2 .k{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink);margin-bottom:10px}
.card2 h3{margin:0 0 .4em}
.card2 p{color:var(--muted);margin:0;font-size:.97rem}
/* steps */
.steps{counter-reset:s;display:grid;gap:0;margin-top:26px}
.step{display:flex;gap:18px;align-items:flex-start;padding:18px 0;border-top:1px solid var(--line)}
.step:first-child{border-top:0}
.step .n{font-family:var(--mono);font-size:.9rem;color:#fff;background:var(--accent);min-width:30px;height:30px;
  border-radius:7px;display:flex;align-items:center;justify-content:center;font-weight:600;margin-top:2px}
.step p{margin:.25rem 0 0;color:var(--muted)}
/* pricing */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
@media(max-width:860px){.plans{grid-template-columns:1fr}}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:26px;display:flex;flex-direction:column}
.plan.best{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.plan .tag{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink);margin-bottom:10px}
.price{font-family:var(--display);font-size:2.5rem;font-weight:800;line-height:1;letter-spacing:-.02em}
.price small{font-size:.85rem;color:var(--muted);font-family:var(--body);font-weight:500}
.plan ul{list-style:none;margin:18px 0;padding:0;display:flex;flex-direction:column;gap:9px;font-size:.95rem;color:var(--muted)}
.plan li::before{content:"✓";color:var(--ok);font-weight:800;margin-right:8px}
.plan .btn{margin-top:auto}
/* faq */
.faq details{border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:10px;background:var(--surface)}
.faq summary{cursor:pointer;font-weight:700;font-size:1.02rem;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--accent-ink);font-family:var(--mono)}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--muted);margin:.8rem 0 0}
/* footer */
.foot{border-top:1px solid var(--line);background:var(--surface)}
.foot .wrap{display:grid;grid-template-columns:2fr 1fr;gap:28px;padding-block:40px}
@media(max-width:720px){.foot .wrap{grid-template-columns:1fr}}
.foot a{color:var(--muted);text-decoration:none;display:inline-block;margin:0 16px 8px 0;font-size:.9rem}
.foot a:hover{color:var(--fg)}
.disclaimer{font-size:.82rem;color:var(--muted);max-width:60ch;margin-top:12px}
/* legal/article pages */
.doc{max-width:760px;margin:0 auto;padding-block:52px}
.doc h1{font-size:clamp(1.9rem,4vw,2.6rem);margin-bottom:.3em}
.doc h2{font-size:1.25rem;margin-top:1.8em}
.doc p,.doc li{color:var(--fg)}
.doc .meta{font-family:var(--mono);font-size:.76rem;color:var(--muted);text-transform:uppercase;letter-spacing:.12em;margin-bottom:26px}
.doc a.back{display:inline-block;margin-bottom:22px;font-family:var(--mono);font-size:.8rem;text-decoration:none}
/* support form */
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-size:.85rem;font-weight:700}
.field input,.field textarea{font-family:var(--body);font-size:1rem;padding:11px;border:1px solid var(--line);
  border-radius:7px;background:var(--bg);color:var(--fg)}
.note{font-size:.9rem;color:var(--muted)}