:root{
  --bg:#0a1222;
  --bg2:#070d18;
  --surface:rgba(255,255,255,.04);
  --surface2:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.10);
  --text:#eef2ff;
  --muted:rgba(238,242,255,.74);
  --link:#87bfff;

  --radius:18px;
  --radius-sm:14px;
  --shadow-sm:0 10px 24px rgba(0,0,0,.28);
  --shadow:0 18px 50px rgba(0,0,0,.40);
}

*{box-sizing:border-box}
html,body{height:100%}

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 500px at 20% -10%, rgba(135,191,255,.18), transparent 55%),
    radial-gradient(700px 400px at 90% 10%, rgba(120,255,200,.10), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  background-attachment: fixed;
  line-height:1.55;
}

a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible{outline:2px solid rgba(135,191,255,.75); outline-offset:3px; border-radius:12px}

.container{max-width:1120px;margin:0 auto;padding:20px}
@media (max-width:560px){.container{padding:16px}}

.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(6,10,18,.60);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}

.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}

.brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.2px;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-dot{
  width:12px;height:12px;border-radius:999px;
  background:linear-gradient(135deg, rgba(135,191,255,1), rgba(120,255,200,1));
  box-shadow:0 0 0 6px rgba(135,191,255,.08);
}
.brand-text{font-size:16px}

.nav{display:flex;gap:10px;flex-wrap:wrap}
.nav a{
  color:var(--muted);
  padding:8px 10px;
  border-radius:12px;
  border:1px solid transparent;
}
.nav a:hover{
  color:var(--text);
  text-decoration:none;
  background:rgba(255,255,255,.03);
  border-color:rgba(255,255,255,.08);
}

h1,h2{line-height:1.2;margin:0 0 10px}
h1{font-size:2rem;letter-spacing:-.3px}
h2{font-size:1.25rem;margin-top:18px}
@media (max-width:560px){h1{font-size:1.65rem}}

.lead{color:var(--muted);font-size:1.05rem;max-width:74ch;margin:0 0 14px}
.muted{color:var(--muted)}

.hero{
  padding:16px 0 6px;
  border-bottom:1px solid rgba(255,255,255,.06);
  margin-bottom:14px;
}
.hero-top{margin-bottom:14px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid rgba(135,191,255,.35);
  background:rgba(135,191,255,.12);
  color:var(--text);
  font-weight:800;
}
.btn:hover{text-decoration:none;background:rgba(135,191,255,.18)}
.btn-ghost{
  border-color:rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
}
.btn-ghost:hover{background:rgba(255,255,255,.06)}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media (max-width:920px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid{grid-template-columns:1fr}}

.tile{
  display:block;
  background:rgba(255,255,255,.03);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow-sm);
  transition:transform .15s ease, border-color .15s ease, background .15s ease;
}
.tile:hover{
  transform:translateY(-2px);
  border-color:rgba(135,191,255,.30);
  background:rgba(255,255,255,.04);
  text-decoration:none;
}
.tile-title{font-weight:900}
.tile-meta{color:var(--muted);font-size:.92rem;margin-top:6px}

.panel{
  background:rgba(255,255,255,.03);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px;
  margin:14px 0;
  box-shadow:var(--shadow-sm);
}
.panel-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.page-head{margin:8px 0 10px}

.list{display:flex;flex-direction:column;gap:10px;margin-top:10px}
.list-item{
  padding:12px;
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.02);
}
.list-title{font-weight:900;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.list-title a{color:var(--link)}
.list-meta{color:var(--muted);font-size:.92rem;margin-top:6px}

.badge{
  display:inline-flex;align-items:center;
  padding:4px 8px;
  border-radius:999px;
  border:1px solid rgba(120,255,200,.35);
  background:rgba(120,255,200,.10);
  color:rgba(238,242,255,.92);
  font-size:.78rem;
  font-weight:800;
}

.crumbs{color:var(--muted);font-size:.92rem;margin:10px 0}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 6px}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.chip{
  display:inline-flex;align-items:center;
  padding:6px 10px;border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.03);
  font-size:.9rem;color:var(--text);
}
.chip-muted{color:var(--muted)}

.kv{list-style:none;padding:0;margin:0}
.kv li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.kv li:last-child{border-bottom:none}
.kv span:first-child{color:var(--muted)}

.faq details{background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.10);border-radius:var(--radius-sm);padding:12px;margin:10px 0}
.faq summary{cursor:pointer;font-weight:900}

.site-footer{border-top:1px solid var(--border);margin-top:28px;background:rgba(0,0,0,.12)}
.footer-inner{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
.site-footer p{margin:8px 0}

.back-row{margin:10px 0 14px}

details.mini{margin-top:10px}
details.mini summary{color:rgba(238,242,255,.85)}

details.mini[open]{background:rgba(255,255,255,.01)}