:root{--bg:#0d0f12;--panel:#15181d;--card:#101318;--text:#e8e8e6;--muted:#b6b8bd;--accent:#b13a3a;--line:#232833;--focus:#99c1ff;--shadow:0 5px 25px rgba(0,0,0,.35)}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:radial-gradient(1200px 800px at 100% -10%,#12161f 0%,var(--bg) 60%);color:var(--text);font:16px/1.6 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";text-rendering:optimizeLegibility}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
h1,h2,h3{line-height:1.2;margin:0 0 16px}
h1{font-size:clamp(28px,3vw,44px)}
h2{font-size:clamp(22px,2.2vw,32px)}
h3{font-size:20px}
p{margin:0 0 12px}
ul{padding-left:18px}
ul.tight{margin:8px 0 0;padding-left:18px}
a{color:var(--text);text-decoration:none}
a:hover{color:#fff;text-decoration:underline}
.site-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;background:rgba(13,15,18,.6);backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.5px}
.brand img{border-radius:50%;box-shadow:var(--shadow)}
.brand strong{color:var(--accent)}
.main-nav ul{list-style:none;display:flex;gap:14px;margin:0;padding:0}
.main-nav a{padding:8px 10px;border-radius:8px}
.main-nav a.active{background:var(--panel);outline:1px solid var(--line)}
.main-nav a:hover{background:var(--panel)}
.menu-toggle{display:none}
.hero{padding:64px 0 40px;border-bottom:1px solid var(--line)}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}
.hero-copy .note{color:var(--muted);font-size:14px}
.hero-art img{width:100%;max-width:360px;filter:drop-shadow(0 10px 30px rgba(0,0,0,.5));display:block;margin:auto}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:linear-gradient(180deg,var(--panel),var(--card));border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.grid.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.box{background:var(--panel);border:1px dashed var(--line);border-radius:12px;padding:12px}
pre{white-space:pre-wrap;background:#0b0d10;border:1px solid var(--line);border-radius:10px;padding:10px;overflow:auto}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;border:1px solid var(--line);background:var(--panel);cursor:pointer}
.btn:hover{filter:brightness(1.1)}
.btn.primary{background:var(--accent);border-color:#802626;color:#fff;font-weight:700}
.btn.ghost{background:transparent}
.fine{color:var(--muted);font-size:13px}
.site-footer{border-top:1px solid var(--line);padding:24px 0;margin-top:40px;background:#0b0d10}
label{display:block;font-weight:600;margin:10px 0 6px}
input,textarea{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:#0b0d10;color:var(--text)}
input:focus,textarea:focus,.btn:focus,.menu-toggle:focus{outline:2px solid var(--focus);outline-offset:2px}
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .grid.two{grid-template-columns:1fr}
  .menu-toggle{display:inline-block;background:transparent;color:var(--text);border:1px solid var(--line);padding:8px 10px;border-radius:10px}
  .main-nav ul{display:none;flex-direction:column;position:absolute;right:20px;top:58px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px;box-shadow:var(--shadow)}
  .main-nav ul.show{display:flex}
}