/* TheThaoAI – xanh navy thể thao, vàng sét */
:root{--bg:#060b1a;--panel:#0c1430;--panel2:#111c40;--line:#1e2c5c;--text:#eef2ff;--muted:#8f9cc4;--lime:#facc15;--ink:#1a1400;--amber:#fb923c;--acc-rgb:250,204,21;--acc2:#f59e0b;--bg-rgb:6,11,26;--line-rgb:30,44,92;--p2-rgb:17,28,64;--hi-rgb:255,255,255;--body:#c7d0ec;--cta1:#1e3a8a;--cta2:#0b1437;--cta-line:#2b4fb5;--cta-text:#c7d5ff;--font-h:'Kanit';--font-num:'Kanit';--ai1:#fde047;--ai2:#f59e0b;--ai-rgb:250,190,30;--pd:#4b5a85;--pa:#60a5fa;--r:10px}
body{background:linear-gradient(115deg,rgba(59,130,246,.10) 0 30%,transparent 30%) no-repeat,radial-gradient(800px 420px at 90% -10%,rgba(250,204,21,.12),transparent 60%) no-repeat,var(--bg)}
h1,h2,h3,.mh1,.sec-h h2,.box h3{font-family:var(--font-h),var(--font),sans-serif;font-weight:600;letter-spacing:0}
.hero h1{font-size:clamp(34px,5.4vw,58px);line-height:1.08;text-transform:uppercase;font-weight:700}
.sec-h h2{text-transform:uppercase}.sec-h h2 small{text-transform:none;font-family:var(--font),sans-serif}
h1 em{font-style:normal;color:#facc15}
.btn{font-weight:700;letter-spacing:.3px;text-transform:uppercase;border-radius:8px}
.btn-lime{background:linear-gradient(120deg,#fde047,#f59e0b);color:#1a1400}
.btn-reg{box-shadow:0 6px 22px rgba(250,204,21,.35)}
.top{border-bottom:3px solid #facc15}
.feat,.board{border-color:rgba(250,204,21,.3)}
.tag{background:#facc15;color:#1a1400}
.chip.on,.chip:hover{background:#facc15;border-color:#facc15;color:#1a1400}
.lg-h{background:linear-gradient(90deg,rgba(59,130,246,.16),var(--panel2))}
.art h2,.entry h2{border-left-color:#facc15}
.logo .mark{width:44px;height:48px;filter:drop-shadow(0 0 12px rgba(59,130,246,.45))}