/* Niche landing pages (/mobile-app, /vision-ai, /audio-ai), rendered by src/niches.js.
   Same look as public/pro.html: Be Vietnam Pro, white and light blue-grey, deep-blue accent.
   Readability rules: body 18px (nothing under 16px), contrast 7:1 or better, tap targets 48px. */
:root{--ink:#111827;--muted:#4b5563;--brand:#1e40af;--brand-d:#172e87;--bg:#f5f7fb;--line:#d5dbe8;--soft:#e8eefc;--ok:#14532d}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;font-family:'Be Vietnam Pro',-apple-system,'Segoe UI',Roboto,Arial,sans-serif;font-size:18px;line-height:1.65;color:var(--ink);background:#fff}
img,svg{max-width:100%}
a{color:var(--brand)}
a:hover{color:var(--brand-d)}
:focus-visible{outline:3px solid #f59e0b;outline-offset:3px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-100px;z-index:100;background:var(--brand);color:#fff;padding:12px 18px;border-radius:8px;font-weight:600}
.skip:focus{top:12px;color:#fff}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-weight:700;line-height:1.25;margin:0;color:var(--ink)}
h1{font-size:clamp(32px,5vw,50px);line-height:1.15;letter-spacing:-.01em}
h2{font-size:clamp(28px,3.6vw,38px)}
h3{font-size:21px}
p{margin:0}
.lead{font-size:20px;max-width:62ch}
.btn{white-space:normal;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:12px 24px;border-radius:10px;border:2px solid var(--brand);background:var(--brand);color:#fff;font-weight:600;font-size:18px;line-height:1.3;font-family:inherit;text-decoration:none;cursor:pointer;text-align:center;transition:background .15s,color .15s}
.btn:hover{background:var(--brand-d);border-color:var(--brand-d);color:#fff}
.btn.alt{background:#fff;color:var(--brand)}
.btn.alt:hover{background:var(--soft);color:var(--brand-d)}
.btn.sm{min-height:48px;padding:8px 18px}
.btn[disabled]{opacity:.7;cursor:wait}
/* header */
.hdr{background:#fff;border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:0 16px;min-height:72px}
.brand{display:flex;align-items:center;color:var(--ink);flex:none;min-height:48px;padding:0 4px}
.brand svg{height:28px;width:auto}
.langs{display:flex;gap:2px;margin-left:auto;list-style:none;padding:0;margin-top:0;margin-bottom:0}
.langs a{display:inline-flex;align-items:center;justify-content:center;min-width:48px;min-height:48px;padding:0 8px;border-radius:8px;color:var(--ink);font-weight:600;text-decoration:none}
.langs a:hover{background:var(--soft);color:var(--brand-d)}
.langs a[aria-current=true]{background:var(--soft);color:var(--brand-d);box-shadow:inset 0 -3px 0 var(--brand)}
.nav{order:3;flex-basis:100%;display:flex;gap:4px;padding:0 0 8px}
.nav a{white-space:nowrap;color:var(--ink);text-decoration:none;font-weight:500;padding:0 12px;min-height:48px;display:inline-flex;align-items:center;border-radius:8px;font-size:19px}
.nav a:hover{background:var(--soft);color:var(--brand-d)}
.hdr-cta{display:none;align-items:center;gap:14px;margin-left:12px}
.hdr-cta .btn{white-space:nowrap}
.tel{font-weight:700;color:var(--ink);text-decoration:none;white-space:nowrap;font-size:19px;min-height:48px;display:inline-flex;align-items:center}
.tel:hover{color:var(--brand)}
@media (min-width:1180px){
  .hdr{position:sticky;top:0;z-index:50}
  .hdr .wrap{flex-wrap:nowrap;gap:20px}
  .nav{order:0;flex-basis:auto;margin-left:auto;padding:0}
  .langs{margin-left:0}
  .hdr-cta{display:flex}
}
/* sections */
section{padding:80px 0;scroll-margin-top:84px}
section.alt{background:var(--bg)}
.sh{margin-bottom:36px}
.sh p{margin-top:12px;color:var(--muted);max-width:62ch;font-size:19px}
.crumbs{margin:0 0 18px;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:0 8px;font-size:17px;color:#1f2937}
.crumbs li+li::before{content:"/";margin-right:8px}
.crumbs a{display:inline-flex;align-items:center;min-height:44px}
.hero{padding:40px 0 64px;background:linear-gradient(180deg,#eef2fc,#fff)}
.hero h1{text-wrap:balance;max-width:24ch}
.hero .lead{margin-top:20px;color:#1f2937}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.tellink{margin-top:16px;color:var(--ink)}
.tellink a{color:var(--ink);font-weight:700;white-space:nowrap;display:inline-flex;align-items:center;min-height:48px}
.pts,.tick{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.pts{margin-top:18px}
.pts li,.tick li{display:flex;gap:12px;align-items:flex-start}
.pts svg,.tick svg{flex:none;width:24px;height:24px;margin-top:3px;color:var(--ok)}
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;display:flex;flex-direction:column;gap:10px}
.card p{color:#1f2937}
.can{list-style:none;margin:0;padding:0;display:grid;gap:14px;max-width:820px}
.can li{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 22px}
.can svg{flex:none;width:24px;height:24px;margin-top:3px;color:var(--ok)}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:s}
.steps li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 24px;counter-increment:s}
.steps li::before{content:counter(s);display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;font-size:22px;margin-bottom:16px}
.steps .tag{color:var(--brand-d);font-weight:600;font-size:17px;display:block;margin-bottom:4px}
.steps p{margin-top:8px;color:#1f2937}
.honest{margin-top:24px;max-width:820px;background:var(--soft);border-left:6px solid var(--brand);border-radius:10px;padding:18px 22px;color:var(--ink)}
.pricecard{max-width:640px;border:3px solid var(--brand);box-shadow:0 12px 32px rgba(23,46,135,.14);border-radius:16px;background:#fff;padding:32px;display:flex;flex-direction:column;gap:14px}
.price{font-size:clamp(32px,5vw,42px);font-weight:700;color:var(--brand-d);line-height:1.2}
.pricecard .sub{color:var(--muted)}
.pricecard .fixed{font-weight:600}
.pricecard .btn{align-self:flex-start}
.pointer{margin-top:24px;max-width:640px;font-size:18px}
.pointer a{font-weight:600;display:inline-flex;align-items:center;min-height:44px}
details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px}
summary{cursor:pointer;list-style:none;padding:18px 56px 18px 22px;min-height:60px;font-weight:600;font-size:19px;position:relative;display:flex;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:28px;font-weight:500;color:var(--brand);line-height:1}
details[open] summary::after{content:"\2212"}
details .a{padding:0 22px 20px;max-width:70ch;color:#1f2937}
.faq-in details{max-width:820px}
/* contact + form */
.contact .wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.big-tel{display:block;font-size:clamp(32px,5vw,44px);font-weight:700;color:var(--brand-d);text-decoration:none;line-height:1.2;margin:6px 0 16px;min-height:48px}
.ct-list{display:grid;gap:18px;margin-top:28px}
.ct-list .k{font-weight:600;color:var(--muted);display:block}
.mail-row a{font-weight:600;font-size:20px;display:inline-flex;align-items:center;min-height:48px}
.form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:0 8px 24px rgba(23,46,135,.08)}
.form h3{margin-bottom:18px}
.f{margin-bottom:18px}
.f label{display:block;font-weight:600;margin-bottom:6px}
.f input,.f select,.f textarea{width:100%;min-height:52px;padding:10px 14px;font-weight:400;font-size:18px;line-height:1.4;font-family:inherit;color:var(--ink);background:#fff;border:2px solid #8b95a9;border-radius:10px;scroll-margin-top:100px}
.f textarea{min-height:96px;resize:vertical}
.f input[aria-invalid=true],.f select[aria-invalid=true]{border-color:#b91c1c}
.f .hint,.form .hint{display:block;color:var(--muted);font-size:17px;margin-top:4px}
::placeholder{color:#4b5563;opacity:1}
.err{color:#991b1b;font-size:17px;font-weight:600;margin-top:6px;display:block}
.form .btn{width:100%}
.msg{margin-top:14px;color:#991b1b;font-weight:600}
.done{background:#ecfdf3;border:2px solid var(--ok);border-radius:12px;padding:22px}
.done h3{color:var(--ok);margin-bottom:8px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
/* footer */
.ftr{background:#0f1b3d;color:#e8ecf8;padding:56px 0 40px}
.ftr .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.ftr a{color:#fff;text-underline-offset:3px}
.ftr a:hover{color:#cfd9ff}
.ftr h2{font-size:19px;color:#fff;margin-bottom:10px}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.ftr li a{display:inline-flex;align-items:center;min-height:44px}
.ftr .brand{color:#fff;margin-bottom:12px;display:inline-flex}
.ftr .copy-line{grid-column:1/-1;border-top:1px solid #2c3a66;padding-top:20px;margin-top:8px}
.bar{display:none}
@media (max-width:1179px){
  .bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;gap:10px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(17,24,39,.12)}
  .bar .btn{flex:1;min-height:56px;padding:8px 10px}
  body{padding-bottom:84px}
}
@media (max-width:899px){
  section{padding:56px 0}
  .hero{padding:24px 0 48px}
  .contact .wrap,.ftr .wrap,.g2,.g3,.steps{grid-template-columns:1fr}
  .wrap{padding:0 18px}
}
@media (max-width:520px){
  .cta-row .btn{width:100%}
  .card,.form,.pricecard{padding:22px 20px}
  .pricecard .btn{align-self:stretch}
  .bar .btn{font-size:17px}
}