@import url("lx-fonts.css");

:root{
  --bg:#000000;
  --ink:#f2ebe4;
  --muted:#9a8f84;
  --dim:#94897e;
  --faint:#8b8178;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --ac:#ff7a1a;
  --ac-red:#e22d0f;
  --card:rgba(255,255,255,.028);
  --pad:clamp(18px,5vw,64px);
  --r:4px;
  --wrap:1320px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Be Vietnam Pro',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:rgba(255,122,26,.3);color:#fff;}
img{max-width:100%;}
a{color:inherit;}

/* ---------- NAV ---------- */
.lxnav{
  position:fixed;top:0;left:0;right:0;z-index:200;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px var(--pad);
  backdrop-filter:blur(14px);
  background:linear-gradient(180deg,rgba(0,0,0,.90),rgba(0,0,0,.42));
  border-bottom:1px solid var(--line-soft);
}
.lxlogo{display:flex;align-items:center;gap:11px;text-decoration:none;cursor:pointer;}
.lxlogo-icon{width:34px;height:34px;display:block;}
.lxwordmark{line-height:1;}
.lxwordmark .wm{font-family:'Space Age','Unbounded',sans-serif;font-weight:400;text-transform:lowercase;font-size:23px;letter-spacing:8px;color:#fff;}
.lxwordmark .wm-sub{font-family:'SFU Futura',sans-serif;font-size:8.5px;letter-spacing:3.9px;color:var(--muted);margin-top:5px;}
.lxnav-links{display:flex;align-items:center;gap:26px;}
.lxnav-links a{
  font-size:13px;font-weight:500;letter-spacing:.4px;color:#cfc6bd;
  text-decoration:none;transition:color .2s ease;white-space:nowrap;
}
.lxnav-links a:hover{color:#fff;}
.lxnav-links a.is-active{color:var(--ac);}
.lxnav-actions{display:flex;align-items:center;gap:14px;}
.lxcta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 22px;border-radius:999px;
  background:var(--ac);
  color:#140c06;font-size:13px;font-weight:600;letter-spacing:.3px;
  text-decoration:none;white-space:nowrap;
  transition:background .2s ease;
}
.lxcta:hover{background:#ff8c3a;}
.lxcta-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 22px;border-radius:999px;border:1px solid rgba(255,255,255,.28);
  color:#ece4db;font-size:13px;font-weight:500;text-decoration:none;white-space:nowrap;
  transition:border-color .2s ease,color .2s ease;
}
.lxcta-ghost:hover{border-color:var(--ac);color:#fff;}
.lxburger{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r);
  border:1px solid rgba(255,255,255,.16);
  background:transparent;color:#fff;font-size:19px;cursor:pointer;
}
.lxdrawer{
  position:fixed;inset:0;z-index:190;display:none;
  background:rgba(10,7,5,.97);backdrop-filter:blur(10px);
  padding:110px var(--pad) 40px;
}
.lxdrawer.open{display:block;}
.lxdrawer a{
  display:block;padding:17px 0;font-size:19px;font-weight:500;
  color:#e6ded6;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.07);
}
.lxdrawer .lxcta{margin-top:26px;width:100%;padding:15px 22px;font-size:15px;}

/* ---------- LAYOUT ---------- */
/* nav cố định che mất tiêu đề khi nhảy tới #anchor */
[id]{scroll-margin-top:118px;}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad);}
.wrap-narrow{max-width:780px;margin:0 auto;padding:0 var(--pad);}
main{padding-top:120px;}
section{padding:clamp(52px,7vw,96px) 0;}

.eyebrow{
  font-size:11px;letter-spacing:2.4px;text-transform:uppercase;
  color:var(--ac);margin:0 0 18px;font-weight:600;
}
h1{font-family:'Unbounded',sans-serif;font-size:clamp(28px,4.4vw,52px);max-width:16ch;line-height:1.4;font-weight:700;text-transform:uppercase;color:#fff;margin:0 0 24px;}
h2{font-family:'Unbounded',sans-serif;font-size:clamp(23px,3.2vw,40px);line-height:1.4;font-weight:700;text-transform:uppercase;color:#fff;margin:0 0 22px;}
h3{font-family:'Unbounded',sans-serif;font-size:clamp(17px,1.9vw,23px);line-height:1.44;font-weight:600;color:#fff;margin:0 0 12px;}
.eyebrow{font-family:'Unbounded',sans-serif;display:flex;align-items:center;gap:12px;}
.eyebrow::before{content:"";flex:0 0 auto;width:28px;height:1px;background:currentColor;opacity:.75;}
p{font-size:16px;line-height:1.85;color:#c9c0b7;margin:0 0 20px;}
.lead{font-size:clamp(17px,2vw,20px);line-height:1.75;color:#d8d0c8;}
.muted{color:var(--muted);}

.grad{color:var(--ac);}

/* ---------- CARDS ---------- */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:clamp(22px,3vw,32px);
}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}

.stat{font-size:clamp(32px,4vw,46px);font-weight:700;line-height:1.1;margin:0 0 8px;}
.stat-label{font-size:12.5px;letter-spacing:1.4px;text-transform:uppercase;color:var(--dim);margin:0;}

/* ---------- BLOG ---------- */
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;text-decoration:none;color:inherit;
  transition:transform .25s ease,border-color .25s ease;
}
.post-card:hover{border-color:rgba(255,255,255,.22);}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#0d0d0d;}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease;}
.post-card:hover .thumb img{transform:scale(1.05);}
.post-card .body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag{
  display:inline-block;font-size:10.5px;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--ac);border:1px solid rgba(255,122,26,.35);
  border-radius:999px;padding:5px 11px;
}
.post-meta{font-size:12.5px;color:var(--faint);letter-spacing:.3px;}

article.prose{max-width:760px;margin:0 auto;}
article.prose h2{margin-top:52px;}
article.prose h3{margin-top:34px;}
article.prose ul,article.prose ol{padding-left:22px;margin:0 0 22px;}
article.prose li{font-size:16px;line-height:1.85;color:#c9c0b7;margin-bottom:10px;}
article.prose blockquote{
  margin:30px 0;padding:20px 26px;
  border-left:3px solid var(--ac);
  background:rgba(255,255,255,.03);border-radius:0;
}
article.prose blockquote p{margin:0;color:#e2dad2;font-style:italic;}
article.prose img{border-radius:var(--r);margin:26px 0;display:block;}
article.prose code{
  background:rgba(255,255,255,.07);padding:2px 7px;border-radius:6px;
  font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}

article.prose figure{margin:32px 0;}
article.prose figure img{margin:0 0 12px;width:100%;height:auto;display:block;border-radius:var(--r);}
article.prose figcaption{font-size:13.5px;line-height:1.65;color:#8b8178;margin:0;}
article.prose figcaption strong{color:#b8afa6;font-weight:600;}
.faq-q{font-weight:600;color:#fff;margin:0 0 8px;}
article.prose table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px;}
article.prose th,article.prose td{border:1px solid var(--line);padding:12px 14px;text-align:left;color:#c9c0b7;vertical-align:top;}
article.prose th{color:#fff;font-weight:600;background:rgba(255,255,255,.03);}
.table-wrap{overflow-x:auto;}
.hr{height:1px;background:var(--line);border:0;margin:46px 0;}

/* ---------- FOOTER ---------- */
footer.lxfooter{
  border-top:1px solid var(--line);
  padding:clamp(46px,6vw,80px) var(--pad) 40px;
  background:rgba(0,0,0,.25);
}
.lxfoot{max-width:var(--wrap);margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;}
.lxfoot .col-head{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--dim);margin-bottom:18px;}
.lxfoot .links{display:flex;flex-direction:column;gap:12px;}
.lxfoot .links a{font-size:14px;color:#cfc6bd;text-decoration:none;}
.lxfoot .links a:hover{color:#fff;}
.lxfoot p{font-size:14px;line-height:1.6;color:#8b8178;max-width:380px;margin:0;}
.lxfoot-base{
  max-width:var(--wrap);margin:46px auto 0;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--faint);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width:980px){
  .grid3{grid-template-columns:1fr 1fr;}
  .grid4{grid-template-columns:1fr 1fr;}
  .lxfoot{grid-template-columns:1fr 1fr;}
}
@media (max-width:820px){
  .lxnav-links{display:none !important;}
  .lxburger{display:flex !important;}
  .lxnav .lxcta{display:none !important;}
  .lxnav{justify-content:center !important;padding-top:9px;padding-bottom:9px;}
  .lxwordmark{display:none !important;}
  .lxlogo{gap:0 !important;}
  .lxlogo-icon{width:70px;height:70px;}
  .lxnav-actions{position:absolute;right:var(--pad);top:50%;transform:translateY(-50%);gap:0 !important;}
  main{padding-top:118px;}
}
@media (max-width:600px){
  .grid2,.grid3,.grid4{grid-template-columns:1fr;}
  .lxfoot{grid-template-columns:1fr;}
}

/* ---------- TRUY CAP ---------- */
:focus-visible{outline:2px solid var(--ac);outline-offset:3px;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition:none !important;animation:none !important;}
}

/* ---------- KHOI TRICH DAN (quote) ---------- */
.qt{
  position:relative;overflow:hidden;isolation:isolate;
  background:
    linear-gradient(180deg, #000 0%, transparent 22%, transparent 72%, #000 100%),
    radial-gradient(70% 55% at 100% 0%, rgba(255,106,26,.16), transparent 70%),
    radial-gradient(80% 60% at 16% 86%, rgba(255,86,18,.9), rgba(200,42,6,.4) 40%, transparent 74%),
    #000;
  color:#fff;
}
.qt::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;opacity:.14;mix-blend-mode:soft-light;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.qt-top,.qt-bot{display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-size:12px;letter-spacing:.4px;color:rgba(255,255,255,.86);}
.qt-mark{display:block;width:clamp(54px,7vw,120px);height:auto;margin:0 0 clamp(14px,2vw,26px);}
.qt-mark polygon{fill:#fff;}
.qt-q{font-family:'Unbounded',sans-serif;font-weight:700;text-transform:uppercase;line-height:1.12;
  letter-spacing:-.01em;margin:0;color:#fff;}
.qt-q em{font-style:normal;
  background:linear-gradient(90deg,#ff3a10 0%,#ff6a1a 50%,#ffa55c 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;}
/* ban lon, ca trang */
.qt-band{padding:clamp(28px,4vw,48px) var(--pad);min-height:min(92svh,860px);
  display:flex;flex-direction:column;justify-content:space-between;}
.qt-band .qt-in{max-width:var(--wrap);width:100%;margin:0 auto;}
.qt-band .qt-top,.qt-band .qt-bot{max-width:var(--wrap);width:100%;margin:0 auto;}
.qt-band .qt-q{font-size:clamp(28px,5.4vw,80px);max-width:17ch;}

/* ---------- BLOG: muc luc + bai lien quan ---------- */
.toc{margin:0 0 clamp(30px,4vw,46px);padding:clamp(18px,2.4vw,26px) clamp(18px,2.6vw,30px);
  border:1px solid rgba(255,255,255,.12);border-left:2px solid var(--ac);border-radius:4px;background:rgba(255,255,255,.028);}
.toc-h{margin:0 0 12px;font-size:11px;letter-spacing:2.4px;text-transform:uppercase;color:var(--ac);}
.toc ol{margin:0;padding-left:18px;display:grid;gap:8px;}
.toc li{font-size:14.5px;line-height:1.55;}
.toc a{color:#e2dad2;text-decoration:none;border-bottom:1px solid transparent;}
.toc a:hover{color:#fff;border-color:var(--ac);}
.rel{margin-top:clamp(44px,6vw,72px);}
.rel-h{margin:0 0 16px;font-size:11px;letter-spacing:2.4px;text-transform:uppercase;color:var(--muted);}
.rel-g{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.rel-c{display:flex;flex-direction:column;gap:10px;text-decoration:none;color:#fff;
  border:1px solid rgba(255,255,255,.1);border-radius:4px;overflow:hidden;padding-bottom:14px;transition:border-color .2s ease,transform .2s ease;}
.rel-c:hover{border-color:rgba(255,122,26,.55);transform:translateY(-3px);}
.rel-c img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;}
.rel-t{padding:0 14px;font-size:14.5px;line-height:1.45;font-weight:600;}
.rel-k{padding:0 14px;font-size:12px;color:var(--muted);}
@media (max-width:820px){ .rel-g{grid-template-columns:1fr;} }