/* ============================================================
   Barth Electronics — modernized site demo · design system
   Built by Database Success. Brand blue, dark confident hero,
   clean light content. Self-hosted Roboto + Roboto Mono.
   ============================================================ */
@font-face{font-family:Roboto;font-weight:300 700;font-display:swap;src:url(fonts/Roboto-latin.woff2) format("woff2")}
@font-face{font-family:"Roboto Mono";font-weight:400 600;font-display:swap;src:url(fonts/RobotoMono-latin.woff2) format("woff2")}

:root{
  --navy:#0a182f; --navy2:#0e2444; --navy3:#13345f;
  --blue:#1f78e6; --blue-l:#4f9bff; --blue-d:#1560c2;
  --ink:#0f1c2e; --slate:#47596f; --muted:#7a8a9c; --line:#e4eaf1;
  --bg:#ffffff; --bg2:#f5f8fc; --card:#ffffff;
  --glow:rgba(31,120,230,.45);
  --radius:12px; --shadow:0 1px 2px rgba(10,24,47,.05),0 10px 30px rgba(10,24,47,.07);
  --shadow-lg:0 24px 60px rgba(10,24,47,.20);
  --wrap:1200px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Roboto,system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
.mono{font-family:"Roboto Mono",ui-monospace,Menlo,monospace}
a{color:inherit;text-decoration:none}
img{max-width:100%}
input,button{font-family:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;border-radius:9px;padding:13px 24px;font-size:15px;font-weight:500;
  cursor:pointer;border:1px solid transparent;transition:transform .14s,box-shadow .14s,background .14s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-pri{background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(31,120,230,.34)}
.btn-pri:hover{background:var(--blue-d);box-shadow:0 12px 30px rgba(31,120,230,.42)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.07)}
.btn-light{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-light:hover{box-shadow:var(--shadow)}
.arrow{font-size:1.1em;line-height:1}

/* ---------- top nav (dark, consistent) ---------- */
.nav{position:sticky;top:0;z-index:40;background:rgba(10,24,47,.86);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav-in{display:flex;align-items:center;gap:30px;max-width:var(--wrap);margin:0 auto;padding:15px 28px}
.logo{display:flex;align-items:center;gap:10px;color:#fff}
.logo-mark{width:32px;height:auto;display:block;flex:none}
.logo b{font-weight:700;font-size:21px;letter-spacing:.05em}
.logo span{font-weight:300;font-size:13px;letter-spacing:.32em;color:#9db4cf}
.logo .dot{width:7px;height:7px;border-radius:50%;background:var(--blue-l);align-self:center;box-shadow:0 0 10px var(--glow)}
.nav-links{display:flex;gap:26px;margin-left:8px}
.nav-links a{color:#c7d4e3;font-size:14.5px;padding:6px 0;position:relative;transition:color .14s}
.nav-links a:hover,.nav-links a.on{color:#fff}
.nav-links a.on::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--blue-l);border-radius:2px}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-tag{font-family:"Roboto Mono",monospace;font-size:11px;color:#7e93ad;letter-spacing:.04em}
.btn-sm{padding:9px 17px;font-size:13.5px}
.burger{display:none;background:none;border:none;color:#fff;cursor:pointer;margin-left:auto}

/* ---------- hero ---------- */
.hero{position:relative;background:radial-gradient(1100px 520px at 78% -8%,rgba(31,120,230,.30),transparent 60%),linear-gradient(180deg,#0a182f 0%,#0c1f3c 100%);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(900px 500px at 75% 0,#000,transparent 70%);opacity:.5}
.hero-in{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;max-width:var(--wrap);margin:0 auto;padding:78px 28px 86px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:"Roboto Mono",monospace;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#8fb6ea;margin:0 0 22px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--blue-l)}
.hero h1{font-size:55px;line-height:1.04;letter-spacing:-.02em;font-weight:700;margin:0 0 20px}
.hero h1 em{font-style:normal;color:var(--blue-l);position:relative;white-space:nowrap}
.hero-sub{font-size:18.5px;line-height:1.6;color:#bfd0e4;max-width:520px;margin:0 0 30px;font-weight:300}
.hero-search{display:flex;gap:10px;max-width:540px;margin-bottom:18px}
.hero-search .field{position:relative;flex:1}
.hero-search svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:#7e93ad}
.hero-search input{width:100%;padding:14px 16px 14px 44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:15px;outline:none}
.hero-search input::placeholder{color:#90a4bd}
.hero-search input:focus{border-color:var(--blue-l);background:rgba(255,255,255,.1)}
.hero-meta{display:flex;gap:26px;flex-wrap:wrap;font-size:13.5px;color:#9db1c9;margin-top:26px}
.hero-meta b{color:#fff;font-weight:600;display:block;font-size:21px;font-family:"Roboto Mono",monospace}
/* hero device panel */
.hero-panel{justify-self:end;width:100%;max-width:400px;background:linear-gradient(180deg,#fff,#eef3f9);border-radius:18px;padding:30px;box-shadow:var(--shadow-lg);position:relative}
.hero-panel::after{content:"";position:absolute;inset:-1px;border-radius:18px;border:1px solid rgba(255,255,255,.5);pointer-events:none}
.hero-panel img{display:block;width:100%;height:300px;object-fit:contain}
.hero-panel .cap{margin-top:14px;text-align:center}
.hero-panel .cap .k{font-family:"Roboto Mono",monospace;font-size:12px;color:var(--blue-d);letter-spacing:.04em}
.hero-panel .cap .n{font-size:14px;color:var(--slate);margin-top:3px}

/* ---------- trust strip ---------- */
.trust{background:var(--navy);color:#9db1c9;border-top:1px solid rgba(255,255,255,.07)}
.trust-in{display:flex;flex-wrap:wrap;gap:14px 40px;align-items:center;justify-content:center;max-width:var(--wrap);margin:0 auto;padding:18px 28px;font-size:13.5px;font-family:"Roboto Mono",monospace;letter-spacing:.03em}
.trust b{color:#fff}
.trust .sep{color:#3a5377}

/* ---------- section frame ---------- */
.section{padding:78px 0}
.section.alt{background:var(--bg2)}
.sec-head{max-width:680px;margin:0 0 40px}
.sec-head .kick{font-family:"Roboto Mono",monospace;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);font-weight:600;margin:0 0 12px}
.sec-head h2{font-size:34px;line-height:1.15;letter-spacing:-.01em;margin:0 0 12px}
.sec-head p{font-size:17px;color:var(--slate);margin:0}

/* ---------- category cards (home) ---------- */
.catgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.catcard{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .18s,box-shadow .18s,border-color .18s}
.catcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cfe0f6}
.catcard .ph{height:158px;background:#f1f5fa center/contain no-repeat;border-bottom:1px solid var(--line)}
.catcard .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.catcard .n{font-family:"Roboto Mono",monospace;font-size:11px;color:var(--blue);letter-spacing:.04em}
.catcard h3{margin:0;font-size:18px;font-weight:500;line-height:1.25}
.catcard .go{margin-top:auto;padding-top:12px;color:var(--blue);font-size:14px;font-weight:500;display:flex;align-items:center;gap:7px}
.catcard:hover .go{gap:11px}

/* ---------- story band ---------- */
.story{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center}
.story .copy h2{font-size:32px;line-height:1.15;margin:0 0 18px;letter-spacing:-.01em}
.story .copy p{font-size:16.5px;color:var(--slate);margin:0 0 16px}
.story .copy .since{font-family:"Roboto Mono",monospace;color:var(--blue);font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 14px;font-weight:600}
.story .visual{background:linear-gradient(150deg,#0a182f,#13345f);border-radius:var(--radius);padding:38px;color:#fff;box-shadow:var(--shadow-lg)}
.story .visual .big{font-size:60px;font-weight:700;font-family:"Roboto Mono",monospace;line-height:1;letter-spacing:-.02em}
.story .visual .lbl{color:#9db1c9;margin-top:6px;font-size:14px}
.story .visual hr{border:none;border-top:1px solid rgba(255,255,255,.12);margin:24px 0}
.story .visual ul{margin:0;padding:0;list-style:none;display:grid;gap:13px}
.story .visual li{display:flex;gap:11px;font-size:14.5px;color:#cddcee}
.story .visual li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--blue-l);margin-top:8px;flex:none;box-shadow:0 0 9px var(--glow)}

/* ---------- cta band ---------- */
.ctaband{background:radial-gradient(800px 360px at 50% 120%,rgba(31,120,230,.4),transparent),var(--navy);color:#fff;text-align:center}
.ctaband .wrap{padding:74px 28px}
.ctaband h2{font-size:38px;letter-spacing:-.01em;margin:0 0 14px}
.ctaband p{font-size:17px;color:#bfd0e4;margin:0 auto 28px;max-width:520px}
.ctaband .btn-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- footer ---------- */
.foot{background:var(--navy);color:#9db1c9;border-top:1px solid rgba(255,255,255,.07)}
.foot-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;max-width:var(--wrap);margin:0 auto;padding:54px 28px 30px}
.foot .logo{margin-bottom:14px}
.foot p{font-size:13.5px;line-height:1.7;margin:0;max-width:300px}
.foot h4{color:#fff;font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin:0 0 16px;font-weight:600}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.foot ul a{font-size:14px;color:#a8bcd3}
.foot ul a:hover{color:#fff}
.foot-bar{border-top:1px solid rgba(255,255,255,.08)}
.foot-bar .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:18px 28px;font-size:12.5px}
.foot-bar .credit{font-family:"Roboto Mono",monospace}
.foot-bar .credit b{color:#cfe0f6;font-weight:600}

/* ---------- responsive (home/shell) ---------- */
@media(max-width:920px){
  .hero-in{grid-template-columns:1fr;gap:36px}
  .hero-panel{justify-self:start;max-width:340px}
  .hero h1{font-size:42px}
  .catgrid{grid-template-columns:repeat(2,1fr)}
  .story{grid-template-columns:1fr;gap:32px}
  .foot-in{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-tag,.nav-cta .btn{display:none}
  .burger{display:block}
  .nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;margin:0;background:var(--navy);
    border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 22px 44px rgba(0,0,0,.35);padding:6px 0;display:none}
  .nav.open .nav-links{display:flex}
  .nav-links a{padding:13px 28px;font-size:15px}
  .nav-links a.on{color:var(--blue-l)}
  .nav-links a.on::after{display:none}
  .hero h1{font-size:34px}
  .hero-search{flex-direction:column}
  .catgrid{grid-template-columns:1fr}
  .section{padding:54px 0}
  .foot-in{grid-template-columns:1fr}
}