:root{--bg:#06111d;--panel:#0c1b2b;--gold:#f1c45b;--text:#f7f8fa;--muted:#98a8b8;--line:#203246}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,sans-serif}a{color:inherit;text-decoration:none}
header{height:76px;padding:0 6vw;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);position:sticky;top:0;background:#06111dee;backdrop-filter:blur(12px);z-index:10}
.logo{font-weight:900;letter-spacing:2px}.logo b{color:var(--gold);border:1px solid var(--gold);padding:7px 10px;border-radius:9px;margin-right:8px}nav{display:flex;gap:25px;align-items:center;font-size:13px}.menu{display:none;background:none;border:0;color:white;font-size:24px}
.hero,.pagehero{padding:110px 6vw;min-height:650px;display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:60px;background:radial-gradient(circle at 85% 20%,#193450,#06111d 42%)}
.pagehero{min-height:430px;display:block}.tag{color:var(--gold);font-size:11px;letter-spacing:3px;font-weight:bold}.hero h1,.pagehero h1{font-size:clamp(54px,7vw,94px);line-height:.96;letter-spacing:-4px;margin:20px 0}.hero h1 span,.pagehero h1 span{color:var(--gold)}
.lead{color:var(--muted);font-size:18px;line-height:1.8;max-width:680px}.buttons{display:flex;gap:12px;margin-top:30px}.btn{padding:14px 20px;border:1px solid #46586a;border-radius:9px;font-weight:bold;font-size:13px}.gold{background:var(--gold);color:#07111b;border-color:var(--gold)}
.lab{padding:35px;background:linear-gradient(145deg,#11263c,#091522);border:1px solid #2d4359;border-radius:26px;box-shadow:0 30px 80px #0008}.lab small{color:#8294a7;letter-spacing:3px}.lab strong{display:block;font-size:52px;line-height:1.05}.lab strong:last-of-type{color:var(--gold)}.lab .code{margin-top:30px;padding-top:20px;border-top:1px solid var(--line);color:#74879a;line-height:2;font-family:monospace}
section.content{padding:100px 6vw}.head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:45px}.head h2,.content h2{font-size:clamp(38px,5vw,62px);margin:12px 0}.head p{max-width:480px;color:var(--muted);line-height:1.8}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card{padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:15px}.card i{color:var(--gold);font-style:normal}.card h3{font-size:21px;margin-top:45px}.card p,.split p{color:var(--muted);line-height:1.75}.card a{color:var(--gold);font-weight:bold;font-size:12px}
.method{background:#091725;text-align:center}.three{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);margin-top:50px;text-align:left}.three article{padding:45px;border-right:1px solid var(--line)}.three article:last-child{border:0}.three span{color:var(--gold)}.three p{color:var(--muted);line-height:1.7}
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.course{padding:50px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:180px 1fr;gap:40px}.course h2{margin-top:0}.pill{display:inline-block;border:1px solid #2b4258;border-radius:99px;padding:8px 11px;margin:4px;color:#93a4b5;font-size:10px}
form{max-width:650px;padding:32px;background:var(--panel);border:1px solid var(--line);border-radius:18px;display:grid;gap:16px}input,select,textarea{width:100%;padding:14px;background:#081522;border:1px solid #294158;border-radius:8px;color:white}label{font-size:11px;color:#a1b0bf}.success{color:var(--gold)}
footer{padding:50px 6vw;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:25px;color:#8192a4;font-size:12px}
@media(max-width:850px){nav{display:none;position:absolute;top:76px;left:0;right:0;background:#081522;padding:25px;flex-direction:column;align-items:flex-start}nav.open{display:flex}.menu{display:block}.hero{grid-template-columns:1fr}.grid{grid-template-columns:1fr 1fr}.three,.split{grid-template-columns:1fr}.three article{border-right:0;border-bottom:1px solid var(--line)}}
@media(max-width:540px){.hero,.pagehero,section.content{padding-left:22px;padding-right:22px}.hero h1,.pagehero h1{letter-spacing:-2px}.grid{grid-template-columns:1fr}.course{grid-template-columns:1fr}.buttons{flex-direction:column}.buttons a{text-align:center}footer{flex-direction:column}}