:root{
  --bg:#f7f7fb;--surface:#fff;--text:#16161d;--muted:#66677a;--border:#e6e6ef;
  --accent:#6d4aff;--accent2:#3d2bb8;--success:#157347;
}
*{box-sizing:border-box}
html{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
body{margin:0;line-height:1.55}
a{color:inherit}
.container{width:min(1120px,calc(100% - 32px));margin:auto}
header{background:rgba(255,255,255,.92);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}
.nav{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{font-weight:800;font-size:1.25rem;text-decoration:none;letter-spacing:-.02em}
.brand span{color:var(--accent)}
.navlinks{display:flex;gap:14px;align-items:center;font-size:.95rem}
.lang{display:flex;border:1px solid var(--border);border-radius:999px;overflow:hidden;background:#fff}
.lang a{padding:7px 10px;text-decoration:none}
.lang a.active{background:var(--text);color:#fff}
.hero{padding:72px 0 46px}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center}
.eyebrow{display:inline-flex;padding:7px 10px;border:1px solid #dcd7ff;border-radius:999px;background:#f1eeff;color:var(--accent2);font-size:.85rem;font-weight:700}
h1{font-size:clamp(2.25rem,6vw,4.4rem);line-height:1.02;letter-spacing:-.055em;margin:18px 0}
.lead{font-size:1.12rem;color:var(--muted);max-width:720px}
.hero-card{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:24px;box-shadow:0 18px 60px rgba(35,28,72,.08)}
.hero-card strong{font-size:1.05rem}
.badge{display:inline-flex;margin-top:8px;color:var(--success);background:#ecf8f1;padding:6px 9px;border-radius:9px;font-size:.85rem;font-weight:700}
.section{padding:34px 0}
.section h2{font-size:1.75rem;letter-spacing:-.03em;margin:0 0 16px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:20px;text-decoration:none;transition:.2s transform,.2s box-shadow}
.card:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(35,28,72,.08)}
.card .icon{font-size:1.65rem}
.card h3{margin:10px 0 5px}
.card p{margin:0;color:var(--muted);font-size:.94rem}
.calc-wrap{display:grid;grid-template-columns:1fr .9fr;gap:22px;align-items:start}
.calc-panel,.result-panel{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:22px}
.field{margin-bottom:16px}
label{display:block;font-weight:700;margin-bottom:7px}
.input-row{display:flex;gap:8px}
input,select{width:100%;padding:12px 13px;border:1px solid #dcdce7;border-radius:12px;font:inherit;background:#fff}
button{border:0;border-radius:12px;padding:13px 16px;font:inherit;font-weight:800;background:var(--accent);color:#fff;cursor:pointer;width:100%}
button:hover{background:var(--accent2)}
.result-big{font-size:2.2rem;font-weight:900;letter-spacing:-.04em;margin:4px 0}
.results{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.result-item{padding:13px;background:#f7f7fb;border-radius:12px}
.result-item span{display:block;color:var(--muted);font-size:.8rem}
.note{font-size:.88rem;color:var(--muted);margin-top:14px}
.content{max-width:820px}
.content h2{margin-top:34px}
.content p,.content li{color:#3d3e49}
footer{margin-top:60px;border-top:1px solid var(--border);padding:32px 0;color:var(--muted);font-size:.9rem}
@media(max-width:800px){
  .hero-grid,.calc-wrap{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
  .navlinks .hide-mobile{display:none}
  .hero{padding-top:44px}
}