:root{
  --bg:#07111c;
  --bg2:#0a1624;
  --panel:#101d2b;
  --panel2:#0f1926;
  --text:#f4f7fb;
  --muted:#b8c4d3;
  --soft:#8ea0b5;
  --line:rgba(255,255,255,.12);
  --line2:rgba(255,255,255,.18);
  --accent:#8fb6ff;
  --accent2:#b9d2ff;
  --ok:#a7f3d0;
  --max:1120px;
  --radius:22px;
  --shadow:0 30px 80px rgba(0,0,0,.38);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at top left,rgba(143,182,255,.14),transparent 32rem),linear-gradient(180deg,var(--bg),#050a12 72%);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
.site-header{position:sticky;top:0;z-index:30;background:rgba(7,17,28,.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 22px}
.brand{font-weight:760;letter-spacing:.01em;white-space:nowrap;color:#fff}
.nav-links{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.nav-links a{font-size:.9rem;color:var(--muted);padding:8px 10px;border-radius:999px;border:1px solid transparent}
.nav-links a:hover,.nav-links a.active{color:#fff;border-color:var(--line2);background:rgba(255,255,255,.06)}
.hero{max-width:var(--max);margin:0 auto;padding:82px 22px 30px}
.eyebrow{display:inline-block;color:var(--accent2);font-size:.78rem;text-transform:uppercase;letter-spacing:.16em;font-weight:700;border:1px solid rgba(143,182,255,.28);background:rgba(143,182,255,.07);padding:7px 10px;border-radius:999px;margin-bottom:24px}
h1{font-size:clamp(2.4rem,5vw,5.2rem);line-height:1.02;margin:0 0 20px;letter-spacing:-.055em;max-width:900px}
.subtitle{font-size:clamp(1.15rem,2vw,1.55rem);color:var(--muted);max-width:840px;margin:0}
main{max-width:var(--max);margin:0 auto;padding:24px 22px 80px}
.content-card{background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.03));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.section{padding:42px 48px;border-top:1px solid var(--line)}
.section:first-child{border-top:0}
h2{font-size:clamp(1.45rem,2.4vw,2.1rem);line-height:1.15;margin:0 0 18px;letter-spacing:-.035em}
p{margin:0 0 16px;color:var(--muted);font-size:1.02rem}
p:last-child{margin-bottom:0}
strong{color:#fff}.lead{font-size:1.13rem;color:#dce6f3}.tight p{margin-bottom:10px}
ul{margin:16px 0 0;padding:0;list-style:none;display:grid;gap:10px}
li{color:var(--muted);padding-left:24px;position:relative}li:before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.diagram{margin:28px 0 0;border:1px solid var(--line);border-radius:18px;background:rgba(4,10,18,.45);overflow:hidden}.diagram img{display:block;width:100%;height:auto}
.note{border-left:3px solid var(--accent);padding:18px 22px;background:rgba(143,182,255,.06);border-radius:12px;margin-top:20px;color:var(--muted)}
.note p{margin:0 0 10px}.note p:last-child{margin-bottom:0}
.profile-grid{display:grid;grid-template-columns:minmax(0,1fr) 170px;gap:28px;align-items:start}.profile-photo{width:100%;max-width:170px;border-radius:16px;border:1px solid var(--line2);box-shadow:0 22px 55px rgba(0,0,0,.34);background:#fff}.meta{color:var(--accent2);font-weight:700;margin-bottom:14px}.status{margin-top:18px;display:inline-block;padding:8px 12px;border-radius:999px;background:rgba(167,243,208,.08);border:1px solid rgba(167,243,208,.22);color:#d8fff0;font-size:.92rem}
.footer{border-top:1px solid var(--line);color:var(--soft);font-size:.92rem}.footer-inner{max-width:var(--max);margin:0 auto;padding:28px 22px}
@media (max-width:820px){.nav{align-items:flex-start;flex-direction:column}.nav-links{justify-content:flex-start}.hero{padding-top:54px}.section{padding:32px 24px}.profile-grid{grid-template-columns:1fr}.profile-photo{max-width:130px;order:-1}.nav-links a{font-size:.86rem}}
@media print{body{background:#fff;color:#111}.site-header,.footer{display:none}.content-card{box-shadow:none;border:0}.section{border-top:1px solid #ddd}.diagram{break-inside:avoid}}

.lang-switch{display:inline-flex;gap:4px;margin-left:8px;padding-left:8px;border-left:1px solid var(--line2)}
.lang-switch a{font-size:.78rem;letter-spacing:.08em;font-weight:700;text-transform:uppercase;color:var(--soft);padding:7px 8px;border-radius:999px;border:1px solid transparent}
.lang-switch a.active{color:#fff;border-color:rgba(143,182,255,.35);background:rgba(143,182,255,.08)}