:root{--bg:#0b1020;--panel:#121a2c;--muted:#8aa0b8;--text:#e6eef7;--accent:#22c55e;--warn:#ef4444;}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55}
a{color:#93c5fd;text-decoration:none} a:hover{text-decoration:underline}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px}
.site-header{border-bottom:1px solid #0a0f1d;background:#0b1020;position:sticky;top:0;z-index:10}
.brand{font-weight:900;color:#fff}
.topnav{display:flex;gap:14px;flex-wrap:wrap}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
.site-footer{border-top:1px solid #0a0f1d;margin-top:30px}
.site-footer .wrap{padding:14px 16px;color:#9db3cc}
.hero{display:grid;grid-template-columns:1fr;gap:16px;padding:22px 0}
@media(min-width:900px){.hero{grid-template-columns:1.3fr .7fr}}
.hero-text h1{font-size:40px;margin:0 0 8px}
.hero .cta-row{display:flex;gap:10px;margin:10px 0 6px}
.btn{background:var(--accent);color:#06131f;border:none;border-radius:10px;padding:10px 14px;font-weight:800;display:inline-block}
.btn.ghost{background:transparent;border:1px solid #2a3a5e;color:#bfe0ff}
.btn.small{padding:8px 10px;font-size:14px}
.hero-panel{background:var(--panel);border:1px solid #17213a;border-radius:12px;padding:12px}
.feature-list{list-style:none;margin:0;padding:0} .feature-list li{padding:8px 0;border-bottom:1px solid #17213a}
.cards-grid{display:grid;gap:12px;margin:18px 0;grid-template-columns:1fr}
@media(min-width:900px){.cards-grid{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--panel);border:1px solid #17213a;border-radius:12px;padding:12px}
h1,h2,h3{color:#e6eef7}
.muted{color:#8aa0b8}
.ad-wrap{display:flex;justify-content:center;margin:8px 0}
.ad-slot{width:100%;max-width:970px;min-height:90px;border:1px dashed #1f2b49;border-radius:10px;background:#0f1526;color:#7f93b2;display:flex;align-items:center;justify-content:center;font-size:13px}
.ad-slot::before{content:'Ad space';opacity:.7}
.grid{display:grid;gap:12px}
.g-2{grid-template-columns:1fr}
@media(min-width:900px){.g-2{grid-template-columns:1fr 1fr}}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
label{display:flex;flex-direction:column;gap:6px;color:#9db3cc;font-size:14px;min-width:160px}
input,select{background:#0f172a;border:1px solid #23314e;border-radius:8px;color:#e8f1fa;padding:8px 10px}
.action{background:var(--accent);border:none;color:#06131f;padding:8px 12px;border-radius:8px;font-weight:700;cursor:pointer}
.action.danger{background:var(--warn);color:#fff}
.big{font-size:20px;font-weight:800;margin-top:4px}
.chart{width:100%;background:#0b1020;border-radius:10px}
.tbl{width:100%;border-collapse:collapse;margin-top:10px;font-size:14px}
.tbl th,.tbl td{border:1px solid #22314f;padding:6px 8px}
.tbl th{background:#0f172a;color:#d9e9ff}
.quick{display:grid;gap:8px;margin-top:10px}
.quick.three{grid-template-columns:1fr}
@media(min-width:700px){.quick.three{grid-template-columns:repeat(3,1fr)}}
.articles-list ul{columns:2;column-gap:24px}
details{padding:10px;border-bottom:1px solid #22314f}
details summary{cursor:pointer;font-weight:700}