/* Nha Cai Chinh Chu — base + layout + header/footer + hero. */

/* Be Vietnam Pro (self-hosted, full VN diacritics) */
@font-face{font-family:"Be Vietnam Pro";font-weight:400;font-style:normal;font-display:swap;
  src:url(../fonts/bvp-400.woff2) format("woff2");}
@font-face{font-family:"Be Vietnam Pro";font-weight:500;font-style:normal;font-display:swap;
  src:url(../fonts/bvp-500.woff2) format("woff2");}
@font-face{font-family:"Be Vietnam Pro";font-weight:700;font-style:normal;font-display:swap;
  src:url(../fonts/bvp-700.woff2) format("woff2");}
@font-face{font-family:"Be Vietnam Pro";font-weight:800;font-style:normal;font-display:swap;
  src:url(../fonts/bvp-800.woff2) format("woff2");}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--ncc-font);font-size:17px;line-height:1.65;
  color:var(--ncc-text);background:var(--ncc-ink-900);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ncc-gold-400);text-decoration:none}
a:hover{color:var(--ncc-gold-500);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{font-weight:800;line-height:1.18;color:var(--ncc-text);margin:0 0 .6em}
h1{font-size:clamp(1.9rem,4.5vw,3rem);letter-spacing:-.02em}
h2{font-size:clamp(1.4rem,2.6vw,2rem);letter-spacing:-.01em}
h3{font-size:1.25rem}
p{margin:0 0 1rem}
em{font-style:normal;color:var(--ncc-gold-500)}

.ncc-container{max-width:var(--ncc-container);margin:0 auto;padding:0 20px;width:100%}
.ncc-narrow{max-width:760px}
.ncc-center{text-align:center}
.ncc-muted{color:var(--ncc-muted)}
.ncc-section{padding:var(--ncc-sp-6) 0}
.ncc-section--alt{background:linear-gradient(180deg,var(--ncc-ink-800),var(--ncc-ink-900))}
.ncc-section__head{margin-bottom:var(--ncc-sp-5);text-align:center}
.ncc-eyebrow{display:inline-flex;align-items:center;gap:.4rem;color:var(--ncc-gold-500);
  font-weight:700;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;margin:0 0 .5rem}
.ncc-eyebrow svg{color:var(--ncc-gold-500)}

.ncc-skip{position:absolute;left:-999px}
.ncc-skip:focus{left:12px;top:12px;background:var(--ncc-gold-500);color:#14110F;padding:.6rem 1rem;border-radius:8px;z-index:100}

/* ---------- Meander Dong Son (divider) ---------- */
.ncc-meander{height:8px;width:100%;
  background-image:repeating-linear-gradient(90deg,var(--ncc-gold-700) 0 2px,transparent 2px 8px,var(--ncc-gold-700) 8px 10px,transparent 10px 22px);
  opacity:.45;mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}

/* ---------- Header ---------- */
.ncc-header{position:sticky;top:0;z-index:40;
  background:rgba(20,17,15,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--ncc-line)}
.ncc-header__bar{display:flex;align-items:center;gap:1.2rem;min-height:66px}
.ncc-logo{display:inline-flex;align-items:center;gap:.6rem;flex:0 0 auto}
.ncc-logo:hover{text-decoration:none}
.ncc-logo__mark{width:38px;height:38px;flex:0 0 auto;filter:drop-shadow(0 2px 6px rgba(200,16,46,.4))}
.ncc-logo__text{display:flex;flex-direction:column;line-height:1;font-weight:800}
.ncc-logo__text b{color:var(--ncc-gold-500);font-size:1.02rem;letter-spacing:.04em}
.ncc-logo__text em{color:var(--ncc-red-600);font-style:normal;font-size:.78rem;letter-spacing:.22em;margin-top:2px}
.ncc-nav{display:flex;gap:.3rem;margin-left:auto;align-items:center;flex-wrap:wrap}
.ncc-nav ul,.ncc-nav li{list-style:none;margin:0;padding:0}
.ncc-nav a{color:var(--ncc-text);font-weight:600;font-size:.97rem;padding:.5rem .8rem;border-radius:999px}
.ncc-nav a:hover{color:var(--ncc-gold-500);background:var(--ncc-ink-700);text-decoration:none}
.ncc-burger{display:none;margin-left:auto;background:none;border:1px solid var(--ncc-line-2);
  color:var(--ncc-gold-500);font-size:1.4rem;line-height:1;border-radius:9px;width:46px;height:44px;cursor:pointer;
  align-items:center;justify-content:center;padding:0}

/* ---------- Hero ---------- */
.ncc-hero{position:relative;overflow:visible;z-index:30;
  background:radial-gradient(120% 130% at 80% -10%,var(--ncc-red-900) 0%,var(--ncc-ink-900) 55%)}
.ncc-hero__pattern{position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:repeating-linear-gradient(45deg,var(--ncc-gold-500) 0 1px,transparent 1px 14px),
    repeating-linear-gradient(-45deg,var(--ncc-gold-500) 0 1px,transparent 1px 14px)}
.ncc-hero__inner{position:relative;padding:var(--ncc-sp-7) 20px;text-align:center;max-width:880px}
.ncc-hero h1{margin-bottom:.4em}
.ncc-hero__sub{font-size:1.12rem;color:var(--ncc-muted);max-width:680px;margin:0 auto 1.8rem}
.ncc-hero__cta{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}

/* ---------- Footer ---------- */
.ncc-footer{background:var(--ncc-ink-800);border-top:1px solid var(--ncc-line);margin-top:var(--ncc-sp-6)}
.ncc-footer .ncc-container{padding-top:var(--ncc-sp-5);padding-bottom:var(--ncc-sp-4)}
.ncc-footer__cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:var(--ncc-sp-4)}
.ncc-footer__brand p{color:var(--ncc-muted);max-width:34ch;margin-top:.8rem;font-size:.95rem}
.ncc-footer h4{color:var(--ncc-gold-500);font-size:.9rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:.6rem}
.ncc-footer a{color:var(--ncc-muted);font-weight:500}
.ncc-footer a:hover{color:var(--ncc-gold-500)}
.ncc-footer__legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem;
  border-top:1px solid var(--ncc-line);margin-top:var(--ncc-sp-4);padding-top:var(--ncc-sp-3);
  color:var(--ncc-faint);font-size:.86rem}
.ncc-rg{color:var(--ncc-warn)}

.ncc-pagination{margin-top:var(--ncc-sp-5)}
.ncc-pagination a,.ncc-pagination .current{padding:.4rem .8rem;border:1px solid var(--ncc-line-2);border-radius:8px;margin-right:.3rem}

@media (max-width:860px){
  .ncc-footer__cols{grid-template-columns:1fr 1fr}
  .ncc-footer__brand{grid-column:1/-1}
}
@media (max-width:760px){
  body{font-size:16px}
  .ncc-burger{display:inline-flex}
  .ncc-nav{display:none;position:absolute;left:0;right:0;top:66px;flex-direction:column;
    background:var(--ncc-ink-800);border-bottom:1px solid var(--ncc-line);padding:.6rem 20px 1rem;gap:.1rem}
  .ncc-nav.is-open{display:flex}
  .ncc-nav a{width:100%;border-radius:10px}
  .ncc-footer__cols{grid-template-columns:1fr}
}