:root{
  --blue:#253C80;
  --blue-dark:#ffffff;
  --blue-deeper:#111d4a;
  --blue-light:rgba(255,255,255,0.10);
  --blue-mid:rgba(255,255,255,0.16);
  --ink:#ffffff;
  --muted:rgba(255,255,255,0.65);
  --white:#253C80;
  --page-bg:#253C80;
  --card-bg:rgba(255,255,255,0.07);
  --card-border:rgba(255,255,255,0.14);
  --shadow:0 10px 32px rgba(10,18,50,.35);
  --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI',Tahoma,Arial,sans-serif;
  color:#fff;
  background:#253C80;
  position:relative;
  min-height:100vh;
  overflow-x:hidden;
}
/* TVS watermark */
body::before{
  content:"TVS";
  position:fixed;
  inset:0;
  z-index:-1;
  display:grid;
  place-content:center;
  font-size:22vw;
  font-weight:900;
  letter-spacing:1vw;
  color:rgba(255,255,255,.04);
  background:
    repeating-linear-gradient(45deg,rgba(255,255,255,.025) 0 2px,transparent 2px 60px);
  pointer-events:none;
  user-select:none;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* ── Header ───────────────────────────────────────────────── */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(26,45,107,.85);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.12);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:82px;gap:14px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.3rem;color:#fff}
.brand .logo{
  width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.15);
  border:1.5px solid rgba(255,255,255,.3);
  color:#fff;display:grid;place-content:center;font-weight:900;
  box-shadow:var(--shadow)
}
/* BNF logo image */
.logo-img{
  width:76px;height:76px;
  border-radius:14px;
  object-fit:cover;
  box-shadow:0 6px 28px rgba(0,0,0,0.55);
  border:2.5px solid rgba(255,255,255,0.28);
  flex-shrink:0;
}
.brand small{display:block;font-size:.65rem;color:rgba(255,255,255,.6);font-weight:600;letter-spacing:.5px}
.menu{display:flex;gap:6px;flex-wrap:wrap}
.menu a{
  padding:8px 14px;border-radius:8px;font-weight:600;color:rgba(255,255,255,.65);
  transition:.2s
}
.menu a:hover,.menu a.active{color:#fff;background:rgba(255,255,255,.12)}
.nav-cta{display:flex;gap:8px}
.btn{
  display:inline-block;padding:10px 18px;border-radius:10px;font-weight:700;
  border:none;cursor:pointer;transition:.2s;font-size:.95rem
}
.btn-primary{
  background:#fff;
  color:#253C80;
  box-shadow:var(--shadow)
}
.btn-primary:hover{filter:brightness(0.96);transform:translateY(-1px)}
.btn-ghost{
  background:rgba(255,255,255,.12);
  color:#fff;
  border:1px solid rgba(255,255,255,.2)
}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.hamburger{display:none;font-size:1.6rem;background:none;border:none;color:#fff;cursor:pointer}

/* ── Hero ─────────────────────────────────────────────────── */
.hero{position:relative;border-radius:var(--radius);overflow:hidden;margin:26px 0;box-shadow:var(--shadow)}
.hero img{width:100%;height:380px;object-fit:cover}
.hero .overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(17,29,74,.92),rgba(37,60,128,.35));
  display:flex;flex-direction:column;justify-content:center;padding:0 8%;color:#fff
}
.hero h1{font-size:2.6rem;max-width:620px;line-height:1.15}
.hero p{margin-top:14px;max-width:520px;font-size:1.1rem;opacity:.9}
.hero .btn{margin-top:22px;align-self:flex-start}

/* ── Sections ─────────────────────────────────────────────── */
.section{padding:40px 0}
.section h2{font-size:2rem;color:#fff;margin-bottom:6px}
.section .lead{color:rgba(255,255,255,.65);margin-bottom:26px;max-width:680px}

/* ── Cards ────────────────────────────────────────────────── */
.grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.card{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column
}
.card:hover{transform:translateY(-6px);background:rgba(255,255,255,.12)}
.card img{width:100%;height:200px;object-fit:cover;background:rgba(255,255,255,.06)}
.card .body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3{font-size:1.15rem;color:#fff}
.card p{color:rgba(255,255,255,.65);font-size:.92rem;flex:1}
.badge{
  display:inline-block;
  background:rgba(255,255,255,.15);
  color:#fff;
  font-size:.72rem;font-weight:700;padding:4px 10px;border-radius:999px;width:max-content;
  border:1px solid rgba(255,255,255,.2)
}

/* ── Brand strip ──────────────────────────────────────────── */
.brandstrip{display:flex;flex-wrap:wrap;gap:14px;margin-top:20px}
.brandstrip span{
  background:rgba(255,255,255,.1);
  color:#fff;padding:10px 18px;border-radius:10px;font-weight:700;
  border:1px solid rgba(255,255,255,.15)
}

/* 3D canvas removed — replaced by marquee ticker */

/* ── Forms ────────────────────────────────────────────────── */
.formwrap{
  max-width:440px;margin:40px auto;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:30px
}
.formwrap h2{color:#fff;margin-bottom:6px}
.formwrap p.sub{color:rgba(255,255,255,.6);margin-bottom:20px;font-size:.92rem}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;margin-bottom:6px;font-size:.9rem;color:#fff}
.field input{
  width:100%;padding:12px 14px;
  border:1px solid rgba(255,255,255,.2);
  border-radius:10px;font-size:1rem;
  background:rgba(255,255,255,.1);
  color:#fff
}
.field input::placeholder{color:rgba(255,255,255,.4)}
.field input:focus{outline:none;border-color:rgba(255,255,255,.5);box-shadow:0 0 0 3px rgba(255,255,255,.08)}
.pass-wrap{position:relative}
.pass-wrap .toggle{
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  background:none;border:none;cursor:pointer;font-size:1.1rem;color:rgba(255,255,255,.5)
}
.formwrap .btn{width:100%;margin-top:6px}
.form-switch{text-align:center;margin-top:16px;color:rgba(255,255,255,.55);font-size:.9rem}
.form-switch a{color:#fff;font-weight:700;text-decoration:underline;text-underline-offset:3px}
.msg{padding:12px;border-radius:10px;margin-bottom:14px;font-size:.9rem;display:none}
.msg.ok{background:rgba(28,122,60,.35);color:#a8f0c0;border:1px solid rgba(28,122,60,.4);display:block}
.msg.err{background:rgba(192,57,43,.3);color:#ffc8c8;border:1px solid rgba(192,57,43,.35);display:block}

/* ── Maps / contact ───────────────────────────────────────── */
.maps{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.mapcard{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)
}
.mapcard iframe{width:100%;height:280px;border:0}
.mapcard .addr{padding:18px}
.mapcard .addr h3{color:#fff;margin-bottom:6px}
.mapcard .addr p{color:rgba(255,255,255,.6)}

/* ── Social bar ───────────────────────────────────────────── */
.social-bar{
  position:fixed;top:50%;left:0;transform:translateY(-50%);
  z-index:60;display:flex;flex-direction:column;gap:3px
}
.social-bar a{
  width:48px;height:48px;display:grid;place-content:center;color:#fff;
  transition:.25s ease;text-decoration:none;
  box-shadow:2px 2px 10px rgba(0,0,0,0.3);
}
.social-bar a svg{
  transition:.25s ease;
  filter:drop-shadow(0 1px 3px rgba(0,0,0,0.3));
}
.social-bar a:hover{width:58px}
.social-bar a:hover svg{transform:scale(1.15)}
.social-bar .ig{background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#bc1888)}
.social-bar .fb{background:#1877f2}
.social-bar .wa{background:#25d366}

/* ── Product detail ───────────────────────────────────────── */
.detail{display:grid;gap:34px;grid-template-columns:1fr 1fr;align-items:start;margin-top:30px}
.detail img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}
.detail h1{color:#fff;font-size:2.2rem;margin-bottom:12px}
.detail p{color:rgba(255,255,255,.7);line-height:1.7;margin-bottom:14px}
.spec{width:100%;border-collapse:collapse;margin-top:10px}
.spec td{padding:10px 12px;border:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.85)}
.spec td:first-child{
  font-weight:700;
  background:rgba(255,255,255,.1);
  color:#fff;width:45%
}
.locked{filter:blur(6px);pointer-events:none;user-select:none}
.gate{
  background:rgba(255,255,255,.08);
  border:1px dashed rgba(255,255,255,.3);
  border-radius:var(--radius);
  padding:26px;text-align:center;margin-top:20px
}
.gate h3{color:#fff;margin-bottom:8px}
.gate p{color:rgba(255,255,255,.6);margin-bottom:14px}

/* ── Footer ───────────────────────────────────────────────── */
footer.site{
  background:rgba(17,29,74,.9);
  border-top:1px solid rgba(255,255,255,.1);
  color:rgba(255,255,255,.7);margin-top:50px;padding:40px 0 20px
}
footer.site .cols{display:grid;gap:30px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
footer.site h4{color:#fff;margin-bottom:12px}
footer.site a{color:rgba(255,255,255,.65);display:block;padding:3px 0}
footer.site a:hover{color:#fff}
footer .copy{
  text-align:center;margin-top:26px;
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:16px;font-size:.85rem;color:rgba(255,255,255,.4)
}

/* ── Modal ────────────────────────────────────────────────── */
.modal-back{position:fixed;inset:0;background:rgba(10,18,60,.7);display:none;place-content:center;z-index:100;padding:20px;backdrop-filter:blur(4px)}
.modal-back.open{display:grid}
.modal{
  background:#1a2d6b;
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);max-width:430px;width:100%;padding:28px;box-shadow:var(--shadow);position:relative
}
.modal .close{position:absolute;right:16px;top:12px;font-size:1.5rem;background:none;border:none;cursor:pointer;color:rgba(255,255,255,.5)}
.modal h3{color:#fff;margin-bottom:6px}
.modal p.sub{color:rgba(255,255,255,.6);font-size:.9rem;margin-bottom:18px}

/* ── Responsive ───────────────────────────────────────────── */
@media(max-width:820px){
  .menu,.nav-cta{display:none}
  .menu.show{
    display:flex;position:absolute;top:70px;left:0;right:0;
    background:#1a2d6b;
    flex-direction:column;padding:14px;box-shadow:var(--shadow);
    border-bottom:1px solid rgba(255,255,255,.1)
  }
  .hamburger{display:block}
  .hero img{height:300px}
  .hero h1{font-size:1.9rem}
  .detail{grid-template-columns:1fr}
}