:root{font-family:system-ui,Segoe UI,Arial,sans-serif;color:#e8f4ff;background:#071522}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}header{background:#06111e;border-bottom:1px solid #1b435a;position:sticky;top:0;z-index:2}.nav{max-width:1100px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:18px 20px;gap:12px;flex-wrap:wrap}.brand{font-weight:800;font-size:1.45rem}.brand span,.accent{color:#00c8ef}nav{display:flex;gap:18px;flex-wrap:wrap}nav a:hover{color:#00c8ef}.wrap{max-width:1100px;margin:auto;padding:0 20px}.hero{background:radial-gradient(circle at 80% 20%,#0a4d6b,#071522 65%);padding:85px 0}.hero h1{font-size:clamp(2.2rem,6vw,4rem);max-width:720px;line-height:1.12;margin:0 0 20px}.hero p{font-size:1.16rem;max-width:660px;color:#b7cad9}.btn{display:inline-block;background:#00c8ef;color:#03111a;padding:12px 20px;border:0;border-radius:9px;font-weight:750;cursor:pointer;margin:6px 8px 6px 0}.btn.alt{background:transparent;border:1px solid #62bcd1;color:#e8f4ff}.section{padding:58px 0}.section h2{font-size:2rem}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{background:#0d2334;border:1px solid #24465b;border-radius:14px;padding:23px}.card h3{margin:8px 0}.muted{color:#b1c5d4}.tag{color:#00d4f5;font-size:.86rem}footer{border-top:1px solid #24465b;padding:26px;text-align:center;color:#aac1d0}.field{display:block;width:100%;margin:8px 0 16px;padding:12px;border-radius:8px;background:#061523;color:white;border:1px solid #507083;font:inherit}textarea.field{min-height:180px}label{font-weight:650}.panel{max-width:780px;margin:45px auto;padding:20px}.hidden{display:none}.message{min-height:22px;color:#76e5fa}.danger{background:#bd4250;color:white}.article{white-space:pre-wrap;line-height:1.7}.search{max-width:480px}.video{max-width:100%;aspect-ratio:16/9;width:680px;border:0}button{font:inherit}@media(max-width:750px){.grid{grid-template-columns:1fr}.hero{padding:58px 0}.nav{align-items:flex-start}nav{gap:12px}.section{padding:35px 0}}
