:root{
    --navy:#12355B;
    --teal:#00A6A6;
    --mint:#E8F8F7;
    --white:#FFFFFF;
    --gray-bg:#F8FAFC;
    --gray-text:#334155;
    --cta:#FFB703;
    --green:#16A34A;
    --line:#E2E8F0;
    --teal-soft:rgba(0,166,166,.12);
    --maxw:1240px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:'Be Vietnam Pro',system-ui,sans-serif;color:var(--gray-text);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
  .mono{font-family:'JetBrains Mono',monospace}

  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);font-weight:500}
  .eyebrow::before{content:"";width:20px;height:1px;background:var(--teal);display:inline-block}

  .btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14px;border-radius:10px;padding:10px 18px;transition:transform .15s,box-shadow .2s,background .2s,border-color .2s,color .2s;cursor:pointer;border:none;font-family:inherit}
  .btn-cta{background:var(--cta);color:var(--navy)}
  .btn-cta:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,183,3,.32)}
  .btn-ghost{background:transparent;color:var(--navy);border:1.5px solid var(--line)}
  .btn-ghost:hover{border-color:var(--teal);color:var(--teal)}
  .btn-teal{background:var(--teal);color:#fff}
  .btn-teal:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(0,166,166,.28)}

  /* ---------- top utility bar ---------- */
  .topbar{background:var(--navy);color:#cdd9e6;font-size:12.5px}
  .topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;font-family:'JetBrains Mono',monospace}
  .topbar .live{display:flex;align-items:center;gap:8px}
  .topbar .live .pulse{width:7px;height:7px;border-radius:50%;background:var(--green);animation:pulse 2s infinite}
  @keyframes pulse{0%{box-shadow:0 0 0 0 rgba(22,163,74,.5)}70%{box-shadow:0 0 0 7px rgba(22,163,74,0)}100%{box-shadow:0 0 0 0 rgba(22,163,74,0)}}
  .topbar .date{color:#8fa3b8}

  /* ---------- header ---------- */
  header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:66px;gap:24px}
  .logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy);font-size:18px;flex:none}
  .logo .mark{width:32px;height:32px;border-radius:9px;background:var(--navy);color:#fff;display:grid;place-items:center;font-family:'JetBrains Mono',monospace;font-size:14px;font-weight:700}
  .navlinks{display:flex;gap:6px;align-items:center;flex:1}
  .navlinks a{font-size:14px;font-weight:500;color:var(--navy);padding:8px 12px;border-radius:8px;transition:background .18s,color .18s}
  .navlinks a:hover,.navlinks a.active{background:var(--mint);color:var(--teal)}
  .nav-right{display:flex;align-items:center;gap:12px;flex:none}
  .search{display:flex;align-items:center;gap:8px;background:var(--gray-bg);border:1px solid var(--line);border-radius:10px;padding:8px 12px;width:210px;transition:border-color .2s}
  .search:focus-within{border-color:var(--teal)}
  .search svg{width:16px;height:16px;stroke:#94a3b8;fill:none;stroke-width:2;flex:none}
  .search input{border:none;background:none;font-family:inherit;font-size:13.5px;width:100%;color:var(--navy)}
  .search input:focus{outline:none}
  .menu-toggle{display:none;background:none;border:none;cursor:pointer;color:var(--navy)}

  /* ---------- category ticker ---------- */
  .cats{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:66px;z-index:55}
  .cats .wrap{display:flex;gap:4px;overflow-x:auto;padding:11px 24px;scrollbar-width:none}
  .cats .wrap::-webkit-scrollbar{display:none}
  .cat{flex:none;font-size:13px;font-weight:500;color:#5b6b7d;padding:6px 13px;border-radius:999px;border:1px solid transparent;transition:all .18s;cursor:pointer;white-space:nowrap}
  .cat:hover{color:var(--navy);background:var(--gray-bg)}
  .cat.on{background:var(--navy);color:#fff}

  /* ---------- lead / featured ---------- */
  .lead-sec{padding:34px 0 18px}
  .lead-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:24px}
  .lead-side{display:flex;flex-direction:column;gap:18px}

  .feat{position:relative;border-radius:18px;overflow:hidden;min-height:440px;display:flex;align-items:flex-end;color:#fff;background:var(--navy)}
  .feat .bg{position:absolute;inset:0;background:linear-gradient(135deg,#12355B,#0a4d6b 60%,#00A6A6)}
  .feat .bg .deco{position:absolute;inset:0;opacity:.18;background-image:radial-gradient(circle at 30% 30%,#fff 1px,transparent 1.6px);background-size:26px 26px}
  .feat .scrim{position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(7,22,40,.85) 100%)}
  .feat .content{position:relative;padding:34px;z-index:2}
  .pill{display:inline-flex;align-items:center;gap:6px;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:5px 11px;border-radius:7px;background:var(--cta);color:var(--navy)}
  .pill.teal{background:var(--teal);color:#fff}
  .pill.green{background:var(--green);color:#fff}
  .pill.alert{background:#e11d48;color:#fff}
  .feat h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.15;margin:14px 0 10px;letter-spacing:-.01em}
  .feat p{color:#d4dde7;font-size:15px;max-width:560px}
  .feat .meta{margin-top:16px;font-family:'JetBrains Mono',monospace;font-size:12px;color:#9fb2c6;display:flex;gap:14px}

  .scard{position:relative;border-radius:14px;overflow:hidden;color:#fff;min-height:140px;display:flex;align-items:flex-end;flex:1}
  .scard .bg{position:absolute;inset:0}
  .scard .scrim{position:absolute;inset:0;background:linear-gradient(180deg,transparent 20%,rgba(7,22,40,.82))}
  .scard .content{position:relative;padding:18px;z-index:2}
  .scard h3{font-size:16px;font-weight:700;line-height:1.3;margin-top:8px}
  .scard .meta{margin-top:8px;font-family:'JetBrains Mono',monospace;font-size:11px;color:#b9c7d6}

  /* ---------- main feed + sidebar ---------- */
  .main{padding:30px 0 80px}
  .layout{display:grid;grid-template-columns:1fr 340px;gap:44px}
  .sec-label{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;padding-bottom:14px;border-bottom:2px solid var(--navy)}
  .sec-label h2{font-size:20px;color:var(--navy);font-weight:800;letter-spacing:-.01em}
  .sec-label a{font-size:13px;font-weight:600;color:var(--teal);display:flex;align-items:center;gap:5px}
  .sec-label a svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2.2}

  .feed{display:flex;flex-direction:column;gap:4px}
  .row{display:grid;grid-template-columns:170px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
  .row:hover h3{color:var(--teal)}
  .row .thumb{border-radius:11px;overflow:hidden;height:118px;position:relative}
  .row .thumb .bg{position:absolute;inset:0}
  .row .thumb .tag{position:absolute;top:8px;left:8px;font-family:'JetBrains Mono',monospace;font-size:10px;font-weight:600;background:rgba(255,255,255,.92);color:var(--navy);padding:3px 8px;border-radius:5px}
  .row .rmeta{font-family:'JetBrains Mono',monospace;font-size:11.5px;color:#94a3b8;display:flex;gap:12px}
  .row h3{font-size:18px;color:var(--navy);font-weight:700;line-height:1.32;margin:7px 0 0;transition:color .18s}
  .row p{font-size:14px;color:#64748b;margin-top:7px}
  .note{margin-top:11px;background:var(--mint);border-left:3px solid var(--teal);border-radius:0 9px 9px 0;padding:9px 12px}
  .note .nl{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.05em;text-transform:uppercase;color:var(--teal);font-weight:500;display:flex;align-items:center;gap:6px}
  .note .nl svg{width:12px;height:12px;stroke:var(--teal);fill:none;stroke-width:2}
  .note p{font-size:12.5px;color:var(--navy);margin-top:4px;line-height:1.5}

  .load-more{margin-top:30px;text-align:center}

  /* sidebar */
  aside{display:flex;flex-direction:column;gap:30px}
  .box{border:1px solid var(--line);border-radius:16px;padding:22px;background:#fff}
  .box.dark{background:var(--navy);border-color:var(--navy);color:#fff}
  .box-title{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);font-weight:500;margin-bottom:16px;display:flex;align-items:center;gap:8px}
  .box.dark .box-title{color:#8fe6e6}

  .trend{display:flex;gap:14px;padding:13px 0;border-bottom:1px dashed var(--line)}
  .trend:last-child{border-bottom:none}
  .trend .rank{font-family:'JetBrains Mono',monospace;font-weight:700;font-size:18px;color:var(--teal);flex:none;width:26px}
  .trend a{font-size:14px;font-weight:600;color:var(--navy);line-height:1.35;transition:color .18s}
  .trend a:hover{color:var(--teal)}
  .trend .tm{font-family:'JetBrains Mono',monospace;font-size:11px;color:#94a3b8;margin-top:3px}

  .knowledge .klink{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--navy);font-weight:500;transition:color .18s}
  .knowledge .klink:last-child{border-bottom:none}
  .knowledge .klink:hover{color:var(--teal)}
  .knowledge .klink .k{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--teal);flex:none}
  .knowledge .klink .arr{margin-left:auto;color:#cbd5e1}

  .news-box p{font-size:14px;color:#cdd9e6;margin-bottom:16px}
  .news-box .field{display:flex;flex-direction:column;gap:9px}
  .news-box input{padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-family:inherit;font-size:14px}
  .news-box input::placeholder{color:#7e92a8}
  .news-box input:focus{outline:none;border-color:var(--teal)}

  .chips{display:flex;flex-wrap:wrap;gap:8px}
  .chips span{font-size:12.5px;font-weight:500;color:var(--navy);background:var(--gray-bg);border:1px solid var(--line);border-radius:999px;padding:6px 12px;cursor:pointer;transition:all .18s}
  .chips span:hover{border-color:var(--teal);background:var(--mint)}

  /* ---------- knowledge band ---------- */
  .know-band{background:var(--gray-bg);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0}
  .know-head{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:16px;margin-bottom:30px}
  .know-head h2{font-size:clamp(24px,3vw,32px);font-weight:800;color:var(--navy);letter-spacing:-.02em;margin-top:12px}
  .know-head p{color:#5b6b7d;margin-top:8px;max-width:520px;font-size:15.5px}
  .kgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
  .kcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;transition:transform .2s,box-shadow .2s,border-color .2s}
  .kcard:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(18,53,91,.1);border-color:transparent}
  .kcard .ic{width:42px;height:42px;border-radius:11px;background:var(--mint);display:grid;place-items:center;margin-bottom:14px}
  .kcard .ic svg{width:22px;height:22px;stroke:var(--navy);fill:none;stroke-width:1.8}
  .kcard .kn{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--teal)}
  .kcard h3{font-size:16px;color:var(--navy);font-weight:700;margin:6px 0 7px}
  .kcard p{font-size:13px;color:#64748b}

  /* ---------- footer ---------- */
  footer{background:var(--navy);color:#c2cfdc;padding:56px 0 28px}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px;margin-bottom:36px}
  footer .logo{color:#fff;margin-bottom:14px}
  footer .logo .mark{background:#fff;color:var(--navy)}
  footer .fdesc{font-size:14px;color:#9fb2c6;max-width:300px}
  footer h6{color:#fff;font-size:12px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;margin-bottom:14px;font-family:'JetBrains Mono',monospace}
  footer ul{list-style:none}
  footer li{margin-bottom:9px}
  footer li a{font-size:14px;color:#9fb2c6;transition:color .2s}
  footer li a:hover{color:var(--teal)}
  .foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;font-size:13px;color:#7e92a8;flex-wrap:wrap;gap:10px}

  .reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
  .reveal.in{opacity:1;transform:none}

  @media (max-width:1080px){
    .layout{grid-template-columns:1fr}
    aside{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .kgrid{grid-template-columns:repeat(2,1fr)}
  }
  @media (max-width:860px){
    .lead-grid{grid-template-columns:1fr}
    .search{display:none}
    .navlinks{display:none}
    .menu-toggle{display:block}
  }
  @media (max-width:600px){
    .row{grid-template-columns:1fr;gap:12px}
    .row .thumb{height:180px}
    aside{grid-template-columns:1fr}
    .kgrid{grid-template-columns:1fr}
    .foot-grid{grid-template-columns:1fr 1fr}
  }
  @media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}
  /* ---------- single / page (bổ sung cho WordPress) ---------- */
  .single-article{max-width:760px}
  .pill{cursor:pointer}
  .single-title{font-size:clamp(26px,4vw,40px);font-weight:800;color:var(--navy);line-height:1.18;letter-spacing:-.01em;margin:6px 0 14px}
  .single-meta{margin-bottom:22px}
  .single-hero{border-radius:16px;overflow:hidden;margin:0 0 26px}
  .single-hero img{width:100%;height:auto;display:block}
  .single-content{font-size:16.5px;color:#33414f;line-height:1.75}
  .single-content > *{margin-bottom:18px}
  .single-content h2{font-size:24px;color:var(--navy);font-weight:700;margin:30px 0 12px;letter-spacing:-.01em}
  .single-content h3{font-size:19px;color:var(--navy);font-weight:700;margin:24px 0 10px}
  .single-content a{color:var(--teal);text-decoration:underline;text-underline-offset:2px}
  .single-content ul,.single-content ol{padding-left:22px}
  .single-content li{margin-bottom:7px}
  .single-content blockquote{border-left:3px solid var(--teal);background:var(--mint);padding:14px 18px;border-radius:0 10px 10px 0;color:var(--navy);font-style:italic}
  .single-content img{border-radius:12px;height:auto}
  .single-content code{font-family:'JetBrains Mono',monospace;background:var(--gray-bg);padding:2px 6px;border-radius:5px;font-size:.9em}
  .single-note{margin:28px 0}
  .single-note p{font-size:14px}
  .single-tags{margin-top:26px}

  /* pagination */
  .pagination{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
  .pagination .page-numbers{font-family:'JetBrains Mono',monospace;font-size:14px;font-weight:500;color:var(--navy);padding:9px 15px;border:1px solid var(--line);border-radius:10px;transition:all .18s}
  .pagination .page-numbers:hover{border-color:var(--teal);color:var(--teal)}
  .pagination .page-numbers.current{background:var(--navy);color:#fff;border-color:var(--navy)}

  /* widget gọn trong sidebar (khi dùng widget WP) */
  .box .widget-inner > *:first-child{margin-top:0}
  .box ul{list-style:none}
  .box select{width:100%;padding:9px;border:1px solid var(--line);border-radius:9px;font-family:inherit}

  /* custom logo nếu dùng */
  .logo img{width:32px;height:32px;border-radius:9px;display:block}

  /* comments cơ bản */
  .comment-list{list-style:none;margin:24px 0}
  .comment-list li{padding:14px 0;border-bottom:1px solid var(--line)}
  .comment-respond{margin-top:24px}
  .comment-respond input[type=text],.comment-respond input[type=email],.comment-respond input[type=url],.comment-respond textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;font-family:inherit;margin-bottom:12px}
  .comment-respond input:focus,.comment-respond textarea:focus{outline:none;border-color:var(--teal)}