/* --------------------------------------------------------------------------
   Binance-Style UI for WordPress Homepage
   Author: ChatGPT (GPT-5 Thinking)
   Design language: dark, sharp, high-contrast, grid-based
   Palette (approx Binance):
     --bg: #0b0e11
     --surface: #181a20
     --surface-2: #0e1116
     --muted: #2b3139
     --text: #eaecef
     --text-2: #a1a7bb
     --accent: #f0b90b
     --green: #0ecb81
     --red: #f6465d
   Usage:
     1) Enqueue this file in functions.php or header.php (see instructions in chat).
     2) Add data hooks and classes as referenced below to your front-page.php markup.
--------------------------------------------------------------------------- */

:root{
  --bg:#0b0e11;
  --surface:#181a20;
  --surface-2:#0e1116;
  --muted:#2b3139;
  --text:#eaecef;
  --text-2:#a1a7bb;
  --accent:#f0b90b;
  --green:#0ecb81;
  --red:#f6465d;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-sm:0 4px 14px rgba(0,0,0,.25);
  --container:1200px;
  --transition:.18s cubic-bezier(.2,.8,.2,1);
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:15px/1.6 var(--font);
  letter-spacing:.2px;
}

/* Scrollbar (webkit) */
*::-webkit-scrollbar{height:10px;width:10px}
*::-webkit-scrollbar-thumb{background:var(--muted);border-radius:999px}
*::-webkit-scrollbar-track{background:transparent}

/* Utilities */
.container{max-width:var(--container);margin-inline:auto;padding:0 20px}
.row{display:grid;gap:16px}
.row.cols-2{grid-template-columns:repeat(2,1fr)}
.row.cols-3{grid-template-columns:repeat(3,1fr)}
.row.cols-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1024px){.row.cols-3,.row.cols-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){.row.cols-2,.row.cols-3,.row.cols-4{grid-template-columns:1fr}}
.card{
  background:linear-gradient(180deg, var(--surface), var(--surface-2));
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:16px;
  position:relative;
  overflow:hidden;
}
.card:hover{transform:translateY(-2px);transition:transform var(--transition)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:#111418;color:var(--text-2);border:1px solid rgba(255,255,255,.06);font-weight:600;font-size:12px}
.badge.accent{background:rgba(240,185,11,.12);color:var(--accent);border-color:rgba(240,185,11,.32)}

.btn{
  appearance:none;border:0;outline:0;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 16px;border-radius:12px;
  background:#222830;color:var(--text);font-weight:700;letter-spacing:.3px;
  transition:filter var(--transition), transform var(--transition), background var(--transition);
  cursor:pointer;
}
.btn:hover{filter:brightness(1.08)}
.btn:active{transform:translateY(1px)}
.btn.accent{background:linear-gradient(90deg, #f8d33a, #f0b90b);color:#15181f}
.btn.ghost{background:transparent;border:1px solid var(--muted);color:var(--text-2)}
.btn.block{width:100%}

.kpi{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:12px 0;border-top:1px dashed rgba(255,255,255,.08);
}
.kpi:first-child{border-top:0}
.kpi .label{color:var(--text-2)}
.kpi .value{font-weight:800;font-size:18px}

.text-muted{color:var(--text-2)}
.text-green{color:var(--green)} .text-red{color:var(--red)}
.sep{height:1px;background:linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);margin:14px 0}

/* Header / Nav */
.header{
  position:sticky;top:0;z-index:50;backdrop-filter:saturate(180%) blur(8px);
  background:rgba(11,14,17,.65);border-bottom:1px solid rgba(255,255,255,.06);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.nav .brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.5px}
.nav .brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 24px rgba(240,185,11,.6)}
.nav .menu{display:flex;gap:14px;align-items:center}
.nav .menu a{color:var(--text-2);text-decoration:none;padding:8px 10px;border-radius:8px}
.nav .menu a:hover{background:rgba(255,255,255,.04);color:var(--text)}
.nav .actions{display:flex;gap:8px;align-items:center}
.nav .hamburger{display:none}
@media (max-width:900px){
  .nav .menu{display:none}
  .nav .hamburger{display:inline-flex;background:transparent;border:1px solid var(--muted);height:40px;width:40px;border-radius:10px;align-items:center;justify-content:center}
}

/* Hero */
.hero{
  padding:28px 0 14px;
  background:radial-gradient(1200px 600px at 30% -200px, rgba(240,185,11,.12), transparent 50%);
}
.hero .headline{font-size:40px;line-height:1.15;font-weight:900;letter-spacing:.5px;margin:0 0 8px}
.hero .sub{color:var(--text-2);max-width:700px;margin:0 0 18px}
.hero .cta{display:flex;gap:10px;flex-wrap:wrap}

/* Ticker */
.ticker{
  position:relative;background:#0d1117;border:1px solid rgba(255,255,255,.06);border-radius:12px;overflow:hidden;
}
.ticker .track{display:flex;gap:22px;padding:10px 14px;will-change:transform}
.ticker .item{display:flex;gap:10px;align-items:center;white-space:nowrap}
.ticker .sym{font-weight:800}
.ticker .px{font-weight:800}
.ticker .chg{font-weight:700}
.ticker .chg.up{color:var(--green)} .ticker .chg.down{color:var(--red)}

/* Tabs */
.tabs{display:flex;gap:6px;border-bottom:1px solid rgba(255,255,255,.06);margin-bottom:10px;flex-wrap:wrap}
.tab{padding:8px 12px;border-radius:10px;background:transparent;border:1px solid transparent;color:var(--text-2);font-weight:700;cursor:pointer}
.tab.active{color:#111;background:linear-gradient(90deg, #f8d33a, #f0b90b);border-color:transparent}

/* Markets Table */
.table{
  width:100%;border-collapse:separate;border-spacing:0 10px;
}
.table thead th{
  text-align:left;color:var(--text-2);font-weight:600;padding:6px 10px;font-size:12px;
}
.table tbody tr{
  background:var(--surface);border:1px solid rgba(255,255,255,.06);
}
.table tbody tr:hover{box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.table td{padding:12px 10px}
.table .pair{display:flex;align-items:center;gap:10px;font-weight:800}
.table .pair .quote{color:var(--text-2);font-weight:600}
.table .spark{width:90px;height:28px}
.table .act{display:flex;gap:8px;justify-content:flex-end}

/* Promo grid */
.promo .card{min-height:140px}
.promo .card h3{margin:0 0 6px;font-size:18px}
.promo .card p{margin:0;color:var(--text-2)}

/* Footer */
.footer{
  margin-top:28px;padding:36px 0;border-top:1px solid rgba(255,255,255,.06);
  color:var(--text-2);font-size:14px;
}

/* Motion accents */
.glow::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120px 80px at var(--x,50%) var(--y,50%), rgba(240,185,11,.08), transparent 60%);
  mix-blend-mode:screen;transition:opacity var(--transition);opacity:.6;
}
.glow:hover::after{opacity:1}

.hide{display:none !important}

/* Responsive tweaks */
@media (max-width:720px){
  .hero .headline{font-size:30px}
  .table .act{justify-content:flex-start}
}

/* Service cards container */
.services-grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap:20px;
}

/* Mobile: chuyển về 1 cột */
@media (max-width:768px){
  .services-grid{
    grid-template-columns:1fr; /* 1 cột dọc */
  }
}

/* Tablet: hiển thị 2 cột */
@media (min-width:769px) and (max-width:1024px){
  .services-grid{
    grid-template-columns:1fr 1fr;
  }
}