:root{--bg:#071017;--panel:#0d1921;--line:#213640;--text:#eaf4f6;--muted:#9badb4;--cyan:#38d4d0}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.75 Inter,system-ui,sans-serif}a{color:var(--cyan);text-decoration:none}header,footer{max-width:940px;margin:auto;padding:25px 28px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}header>a{font-size:19px;letter-spacing:3px;color:white}header b{color:var(--cyan)}nav{display:flex;gap:20px}main{max-width:840px;margin:55px auto;padding:45px;background:var(--panel);border:1px solid var(--line);border-radius:12px}h1{font-size:38px;margin:0 0 10px}h2{font-size:18px;margin-top:34px}p{color:var(--muted)}strong{color:var(--text)}.lead{margin-top:-5px}footer{border-top:1px solid var(--line);border-bottom:0;color:var(--muted);font-size:12px}@media(max-width:650px){main{margin:20px 14px;padding:25px}header,footer{padding:20px 16px;align-items:flex-start;gap:15px}h1{font-size:30px}}