:root{--bg:#0d1117;--card:#161b22;--text:#e6edf3;--up:#22c55e;--dn:#ef4444;}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Arial;}
a{text-decoration:none;color:inherit;}
.topbar{display:flex;justify-content:space-between;align-items:center;
  padding:14px 20px;background:#0b0f14;border-bottom:1px solid #1f2937;}
.brand{font-weight:800;}
.container{max-width:1200px;margin:0 auto;padding:20px;}
.section{margin-bottom:18px;}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;}
.card{background:var(--card);padding:14px;border-radius:14px;}
.price-row{display:flex;justify-content:space-between;}
.delta.up{color:var(--up);} .delta.down{color:var(--dn);}
.news-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px;}
.news-item{background:var(--card);padding:14px;border-radius:14px;}
.foot{opacity:.7;border-top:1px solid #1f2937;margin-top:40px;padding:18px;text-align:center;}
.chart{height:420px;width:100%;border:1px solid #1f2937;border-radius:12px;overflow:hidden;}
.article{background:var(--card);padding:20px;border-radius:14px;margin-bottom:20px;}
.article h1{margin-top:0;}