:root{--bg:#0b1020;--card:#0e162d;--muted:#9aa3b2;--text:#e6efff;--brand:#22d3ee;--accent:#8b5cf6}
*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;line-height:1.6}
a{color:var(--brand);text-decoration:none}a:hover{opacity:.9;text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:20px}
.header{display:flex;align-items:center;justify-content:space-between;padding:16px 0}
.logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:20px;color:var(--text)}
.logo img{width:28px;height:28px}
.nav{display:flex;gap:18px}
.nav a{color:var(--text);opacity:.9}
.btn{display:inline-block;background:linear-gradient(135deg,var(--brand),var(--accent));color:#07111e;padding:10px 16px;border-radius:12px;font-weight:700;border:none}
.btn-inv{border:1px solid var(--brand);padding:8px 14px;border-radius:10px;color:var(--brand)}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;padding:30px 0}
.hero h1{font-size:40px;line-height:1.2;margin:0 0 8px}.hero p{color:var(--muted);margin:0 0 18px}
.card{background:var(--card);border:1px solid #1d2746;border-radius:14px;padding:18px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.section-title{font-size:20px;margin:24px 0 12px;opacity:.95}.article-card h3{margin:0 0 8px;font-size:18px}
.footer{margin:40px 0 20px;color:var(--muted);font-size:14px}.small{font-size:13px;color:var(--muted)}
.hr{height:1px;background:#1d2746;margin:22px 0;border:0}
.article{max-width:860px;margin:0 auto;padding:10px}.article h1{font-size:34px;margin:6px 0 10px}
.article .meta{color:var(--muted);font-size:14px;margin-bottom:16px}.article p{margin:12px 0}.article h2{margin-top:24px}
.breadcrumbs{font-size:13px;margin-bottom:12px}.tag{display:inline-block;border:1px solid #2a3763;color:#bcd2ff;border-radius:999px;font-size:12px;padding:3px 9px;margin-right:6px;margin-top:6px}
.related{margin-top:30px}.hamburger{display:none;cursor:pointer}
@media (max-width: 840px){.hero{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}
  .nav{display:none;position:absolute;top:58px;right:20px;background:var(--card);border:1px solid #24335a;padding:12px;border-radius:10px;flex-direction:column;min-width:220px}
  .hamburger{display:block}}
.cookie-banner{position:fixed;left:20px;right:20px;bottom:20px;background:#0f172a;border:1px solid #1f2a4d;color:#cbd5e1;padding:14px;border-radius:12px;display:none;z-index:999}
.cookie-banner .row{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap}
.cookie-banner p{margin:0}.cookie-actions{display:flex;gap:10px}
.chart-box{background:var(--card);border:1px solid #1d2746;border-radius:12px;padding:12px}
code, pre{background:#0b1226;border:1px solid #19244a;border-radius:8px;padding:2px 6px}
.tool-card h3{margin:0 0 8px}input,select,textarea{background:#0b1226;border:1px solid #2a3b6a;color:var(--text);border-radius:8px;padding:10px;width:100%}
label{font-size:14px;color:#bcd2ff}.result{padding:8px 0;font-weight:600}