/* NOVA HK International Trading Limited — static brochure site */
:root{
  --ink:#0d1b2a;
  --ink-2:#1b2b3f;
  --muted:#5b6b7f;
  --line:#e5e9f0;
  --bg:#ffffff;
  --bg-soft:#f5f7fb;
  --accent:#1f6feb;
  --accent-dk:#1552c4;
  --amber:#f4a72c;
  --ok:#1f9d64;
  --radius:14px;
  --shadow:0 10px 30px rgba(13,27,42,.08);
  --shadow-sm:0 4px 14px rgba(13,27,42,.06);
  --wrap:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--bg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
h1,h2,h3{line-height:1.15;margin:0 0 .4em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.5vw,3.3rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:800}
h3{font-size:1.12rem;font-weight:700}
p{margin:0 0 1rem}
.lead{font-size:1.12rem;color:var(--muted);max-width:60ch}

/* buttons (visual only) */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;font-size:.95rem;
  padding:.8rem 1.4rem;border-radius:999px;border:1px solid transparent;cursor:default;transition:.2s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dk)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

/* header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:.7rem;font-weight:800;letter-spacing:-.02em}
.brand .logo{width:40px;height:40px;flex:0 0 auto;display:block}
.brand .logo img{width:100%;height:100%;display:block}
.brand .bt{font-size:1.02rem;line-height:1.05}
.brand .bt small{display:block;font-size:.62rem;font-weight:600;letter-spacing:.16em;color:var(--muted);text-transform:uppercase}
.menu{display:flex;gap:.35rem;align-items:center}
.menu a{padding:.55rem .85rem;border-radius:8px;font-weight:600;font-size:.95rem;color:var(--ink-2)}
.menu a:hover,.menu a.active{color:var(--accent);background:var(--bg-soft)}
.nav .btn{padding:.6rem 1.1rem}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;padding:.5rem .6rem;font-size:1.1rem;cursor:pointer}

/* hero */
.hero{background:radial-gradient(1200px 500px at 80% -10%,rgba(31,111,235,.10),transparent 60%),var(--bg-soft);
  border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:76px 0}
.hero .lead{margin-bottom:1.6rem}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap}
.hero-art{position:relative;aspect-ratio:5/4;border-radius:20px;box-shadow:var(--shadow);overflow:hidden;
  background:linear-gradient(160deg,rgba(13,27,42,.55),rgba(21,82,196,.55)),url("img/hero.jpg") center/cover no-repeat}
.hero-art .chip{position:absolute;background:#fff;border-radius:14px;padding:.7rem .9rem;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:.6rem;font-weight:700;font-size:.9rem}
.hero-art .chip small{display:block;font-weight:600;color:var(--muted);font-size:.72rem}
.hero-art .c1{top:22px;left:22px}
.hero-art .c2{bottom:22px;right:22px}
.hero-art .c3{bottom:26px;left:26px}
.dot{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:var(--bg-soft);color:var(--accent)}

/* trust strip */
.trust{border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:38px 0}
.trust-item{display:flex;gap:.85rem;align-items:flex-start}
.trust-item .ic{flex:0 0 auto;width:42px;height:42px;border-radius:11px;background:var(--bg-soft);
  display:grid;place-items:center;color:var(--accent)}
.trust-item h3{margin:.1rem 0 .1rem;font-size:1rem}
.trust-item p{margin:0;font-size:.9rem;color:var(--muted)}

/* sections */
section{padding:72px 0}
.section-head{max-width:64ch;margin:0 auto 42px;text-align:center}
.section-head.left{margin-left:0;text-align:left}

/* product grid */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .thumb{aspect-ratio:4/3;display:grid;place-items:center;background:var(--bg-soft);position:relative;overflow:hidden}
.card .thumb svg{width:46%;height:46%}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .tag{position:absolute;top:12px;left:12px;background:#fff;border:1px solid var(--line);
  font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);
  padding:.28rem .6rem;border-radius:999px}
.card .body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.card h3{margin-bottom:.25rem}
.card p{font-size:.9rem;color:var(--muted);margin-bottom:1rem}
.card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}
.price{font-weight:800;font-size:1.05rem;color:var(--ink)}
.price small{font-weight:600;color:var(--muted);font-size:.72rem}

/* about split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split .art{aspect-ratio:4/3;border-radius:18px;background:
  linear-gradient(135deg,#eaf1ff,#f5f7fb);border:1px solid var(--line);display:grid;place-items:center;overflow:hidden}
.split .art svg{width:42%;height:42%;color:var(--accent)}
.split .art img{width:100%;height:100%;object-fit:cover}
.stats{display:flex;gap:34px;margin-top:8px}
.stat b{display:block;font-size:1.9rem;font-weight:800;color:var(--ink)}
.stat span{font-size:.85rem;color:var(--muted)}
ul.ticks{list-style:none;padding:0;margin:0 0 1.4rem}
ul.ticks li{position:relative;padding-left:1.9rem;margin-bottom:.6rem;color:var(--ink-2)}
ul.ticks li::before{content:"";position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:50%;
  background:var(--ok);-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/></svg>") center/70% no-repeat;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/></svg>") center/70% no-repeat}

/* CTA band */
.cta{background:linear-gradient(135deg,#0d1b2a,#1552c4);color:#fff;border-radius:20px;
  padding:48px;text-align:center;box-shadow:var(--shadow)}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.8);max-width:52ch;margin:0 auto 1.4rem}
.cta .btn-primary{background:#fff;color:var(--ink)}
.cta .btn-primary:hover{background:#eef2f9}

/* page hero (inner pages) */
.page-hero{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:56px 0}
.crumbs{font-size:.85rem;color:var(--muted)}
.crumbs a:hover{color:var(--accent)}

/* contact */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.info-row{display:flex;gap:1rem;padding:16px 0;border-bottom:1px solid var(--line)}
.info-row:last-child{border-bottom:0}
.info-row .ic{flex:0 0 auto;width:44px;height:44px;border-radius:11px;background:var(--bg-soft);display:grid;place-items:center;color:var(--accent)}
.info-row b{display:block;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.info-row span{color:var(--ink-2)}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:16px}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.35rem;color:var(--ink-2)}
.field input,.field select,.field textarea{width:100%;padding:.75rem .9rem;border:1px solid var(--line);
  border-radius:10px;font:inherit;color:var(--ink);background:#fff}
.field textarea{min-height:120px;resize:vertical}
.map{margin-top:26px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/7;
  background:linear-gradient(135deg,#eaf1ff,#f5f7fb);display:grid;place-items:center;color:var(--muted);text-align:center;padding:20px}

/* footer */
.site-footer{background:var(--ink);color:#c7d2e0;padding:56px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
.site-footer h4{color:#fff;font-size:.95rem;margin:0 0 1rem;letter-spacing:.02em}
.site-footer a{color:#c7d2e0}
.site-footer a:hover{color:#fff}
.foot-links{list-style:none;padding:0;margin:0}
.foot-links li{margin-bottom:.55rem;font-size:.92rem}
.foot-brand .brand{color:#fff;margin-bottom:1rem}
.foot-brand p{color:#9fb0c4;font-size:.92rem;max-width:34ch}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:22px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.85rem;color:#8ea0b6}

/* responsive */
h1,h2,h3,.lead,p,.brand{overflow-wrap:break-word}
@media(max-width:900px){
  .hero-grid,.split,.contact-grid{grid-template-columns:1fr;gap:34px}
  .hero-grid{padding:52px 0}
  .split{gap:28px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .products{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .menu{display:none}
  .menu.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;
    background:#fff;border-bottom:1px solid var(--line);padding:12px 22px;gap:2px;box-shadow:var(--shadow)}
  .menu.open a{padding:.85rem .5rem;font-size:1rem}
  .nav .brand + .btn{display:none}
  .menu-toggle{display:inline-block}
  .cta{padding:34px 22px}
  .stats{gap:26px}
}
@media(max-width:640px){
  .products{grid-template-columns:repeat(2,1fr);gap:16px}
  .card .body{padding:14px 14px 16px}
  .card h3{font-size:1.02rem}
  .card p{font-size:.85rem;margin-bottom:.7rem}
}
@media(max-width:560px){
  .wrap{padding:0 18px}
  section{padding:48px 0}
  .hero-grid{padding:40px 0}
  .trust-grid,.foot-grid{grid-template-columns:1fr}
  .foot-grid{gap:26px}
  .trust-grid{gap:22px}
  .stats{flex-wrap:wrap;gap:18px 26px}
  .stat b{font-size:1.6rem}
  /* hero chips: shrink so they fit narrow screens */
  .hero-art .chip{padding:.55rem .7rem;font-size:.8rem;gap:.45rem;border-radius:11px}
  .hero-art .chip small{font-size:.66rem}
  .hero-art .dot{width:28px;height:28px}
  .hero-art .c1{top:14px;left:14px}
  .hero-art .c2{bottom:14px;right:14px}
  .hero-art .c3{bottom:14px;left:14px}
  .section-head{margin-bottom:32px}
  .info-row{padding:14px 0}
  .cta h2{font-size:1.4rem}
}
@media(max-width:400px){
  .products{grid-template-columns:1fr}
  .hero-art .c3{display:none}
  .foot-bottom{flex-direction:column;gap:6px}
}