/* EUROSFERA — стиль языковых лендингов (EN/DE/PL/BG). Самодостаточный, премиум, лёгкий. */
:root{ --navy:#070d22; --navy2:#0c1430; --card:rgba(255,255,255,.045); --line:rgba(148,163,184,.16);
  --blue:#3b82f6; --indigo:#6366f1; --txt:#e7ecf5; --mut:#9aa7bd; }
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--navy);color:var(--txt);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
h1,h2,h3{font-family:"Space Grotesk",system-ui,sans-serif;line-height:1.1;letter-spacing:-.02em;font-weight:700;text-wrap:balance}
p{text-wrap:pretty}

/* header / lang switcher */
.top{position:sticky;top:0;z-index:20;background:rgba(7,13,34,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-family:"Space Grotesk",sans-serif;font-weight:700;letter-spacing:.18em;font-size:19px;
  background:linear-gradient(90deg,#fff,#b9c6e6);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.langs{display:flex;gap:6px;flex-wrap:wrap}
.langs a{font-size:12.5px;font-weight:600;color:var(--mut);border:1px solid var(--line);padding:5px 10px;border-radius:8px;transition:.2s}
.langs a:hover{color:#fff;border-color:var(--blue)}
.langs a.on{color:#fff;background:var(--blue);border-color:var(--blue)}

/* hero */
.hero{position:relative;padding:84px 0 60px;
  background:radial-gradient(120% 90% at 50% -10%,rgba(30,58,138,.30),transparent 60%),
            radial-gradient(80% 60% at 85% 30%,rgba(99,102,241,.14),transparent 60%)}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);
  border:1px solid rgba(59,130,246,.3);border-radius:999px;padding:6px 14px;margin-bottom:20px}
.hero h1{font-size:clamp(2rem,5.4vw,3.4rem);margin-bottom:18px}
.hero h1 b{background:linear-gradient(90deg,var(--blue),var(--indigo));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .lead{font-size:clamp(1.05rem,1.8vw,1.25rem);color:var(--mut);max-width:680px;margin-bottom:30px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;padding:13px 24px;border-radius:12px;transition:.25s}
.btn-main{background:linear-gradient(135deg,var(--blue),var(--indigo));color:#fff;box-shadow:0 8px 24px rgba(59,130,246,.3)}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(59,130,246,.42)}
.btn-ghost{border:1px solid var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:var(--blue);color:#fff}

/* sections */
section{padding:58px 0}
.shead{text-align:center;max-width:640px;margin:0 auto 40px}
.shead h2{font-size:clamp(1.5rem,3.4vw,2.2rem);margin-bottom:12px}
.shead p{color:var(--mut)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;transition:.3s}
.card:hover{transform:translateY(-5px);border-color:rgba(59,130,246,.4);box-shadow:0 18px 44px rgba(0,0,0,.4)}
.card .ic{font-size:24px;margin-bottom:12px}
.card h3{font-size:1.18rem;margin-bottom:8px}
.card p{color:var(--mut);font-size:14.5px}
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.why div{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 18px;text-align:center}
.why b{display:block;font-family:"Space Grotesk",sans-serif;font-size:1.05rem;color:#fff;margin-bottom:6px}
.why span{color:var(--mut);font-size:13.5px}

/* contact / footer */
.contact{text-align:center;background:linear-gradient(180deg,transparent,rgba(59,130,246,.06))}
.contact h2{font-size:clamp(1.5rem,3.4vw,2.2rem);margin-bottom:14px}
.contact .big{font-family:"Space Grotesk",sans-serif;font-size:clamp(1.2rem,2.4vw,1.6rem);margin:8px 0}
.contact a.mail{color:var(--blue);font-weight:600}
.foot{border-top:1px solid var(--line);padding:26px 0;text-align:center;color:var(--mut);font-size:13.5px}
@media(max-width:820px){ .grid{grid-template-columns:1fr} .why{grid-template-columns:repeat(2,1fr)} }