:root{--bg:#0e1116;--card:#151a22;--text:#e8ecf1;--muted:#98a2b3;--accent:#4fd1c5;--line:#232a35}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(14,17,22,.92);backdrop-filter:blur(8px);z-index:10}
nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.3px;color:var(--text)}
.logo span{display:inline-block;width:14px;height:14px;background:var(--accent);border-radius:3px;transform:rotate(45deg)}
nav ul{list-style:none;display:flex;gap:22px;margin:0;padding:0}nav ul a{color:var(--muted);font-size:15px}nav ul a:hover{color:var(--text);text-decoration:none}
.lang{border:1px solid var(--line);border-radius:6px;padding:4px 10px;font-size:13px;color:var(--muted)}
.hero{padding:96px 0 72px}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.15;margin:0 0 18px;max-width:760px}
.hero p{font-size:19px;color:var(--muted);max-width:640px;margin:0 0 30px}
.btn{display:inline-block;background:var(--accent);color:#06211e;font-weight:600;padding:12px 22px;border-radius:8px}.btn:hover{text-decoration:none;filter:brightness(1.08)}
section{padding:64px 0;border-top:1px solid var(--line)}
h2{font-size:28px;margin:0 0 8px}.lead{color:var(--muted);margin:0 0 36px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px}
.card h3{margin:0 0 8px;font-size:18px}.card p{margin:0;color:var(--muted);font-size:15px}
.tag{display:inline-block;font-size:12px;color:var(--accent);border:1px solid rgba(79,209,197,.35);border-radius:999px;padding:2px 10px;margin-bottom:12px}
.steps{counter-reset:s}.steps .card{position:relative;padding-left:64px}.steps .card::before{counter-increment:s;content:counter(s);position:absolute;left:22px;top:22px;width:28px;height:28px;border-radius:50%;background:var(--accent);color:#06211e;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}
.about p{max-width:720px;color:var(--muted)}
.contact .card{max-width:560px}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
@media(max-width:640px){nav ul{display:none}}
/* article pages */
.post{max-width:720px;margin:0 auto;padding:56px 20px}
.post h1{font-size:clamp(28px,4vw,40px);line-height:1.2;margin:0 0 8px}
.post .meta{color:var(--muted);font-size:14px;margin:0 0 32px}
.post h2{font-size:22px;margin:36px 0 10px}
.post p,.post li{color:#c9d1dc;font-size:17px}
.post ul{padding-left:22px}
.post code{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:1px 6px;font-size:15px}
.list .card h3 a{color:var(--text)}
.list .card .meta{color:var(--muted);font-size:13px;margin:0 0 8px}