:root{
  --bg:#0b1020;
  --card:#121a33;
  --text:#e6e8ef;
  --muted:#b7bed7;
  --brand:#7aa2ff;
  --danger:#ff6b6b;
  --ok:#40c057;
  --border:rgba(255,255,255,.10);
  --shadow:0 18px 40px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  background:radial-gradient(1000px 600px at 10% -10%,#1c2a66,transparent),var(--bg);
  color:var(--text);
  line-height:1.55;
}
a{color:var(--brand);text-decoration:none;transition:color .12s ease,opacity .12s ease}
a:hover{opacity:.92;text-decoration:underline}
.container{max-width:1040px;margin:0 auto;padding:20px}
header.site-header{
  position:sticky;top:0;z-index:50;
  border-bottom:1px solid var(--border);
  background:rgba(0,0,0,.18);
  backdrop-filter:blur(10px);
}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:baseline;gap:12px}
.brand h1{margin:0;font-size:18px;letter-spacing:.2px}
.brand small{color:var(--muted)}
nav a{
  display:inline-block;
  margin-left:10px;
  padding:8px 10px;
  border-radius:10px;
  border:1px solid transparent;
}
nav a.active{
  border-color:rgba(122,162,255,.35);
  background:rgba(122,162,255,.10);
  text-decoration:none;
}
nav a:hover{background:rgba(255,255,255,.04);text-decoration:none}
main{padding:22px 0}
h2{margin:10px 0 6px}
.muted{color:var(--muted)}
.small{font-size:13px;color:var(--muted)}
.card{
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  border-radius:14px;
  padding:16px;
  margin:12px 0;
  transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease,background .15s ease;
  will-change:transform;
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(122,162,255,.35);
  background:rgba(255,255,255,.06);
  box-shadow:var(--shadow);
}
.card-link{display:block;color:inherit}
.card-link:hover{text-decoration:none}
.card h3{margin:0 0 6px;font-size:16px}
.card p{margin:0}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
@media (max-width:980px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:720px){.grid{grid-template-columns:1fr}}
.card-cover{
  width:100%;
  aspect-ratio:16/9;
  border-radius:12px;
  border:1px solid var(--border);
  background-size:cover;
  background-position:center;
  margin-bottom:10px;
  filter:saturate(1.05);
}
.flash{padding:10px 12px;border-radius:10px;margin:10px 0;border:1px solid var(--border)}
.flash.ok{border-color:rgba(64,192,87,.35);color:#d3f9d8}
.flash.err{border-color:rgba(255,107,107,.35);color:#ffe3e3}
form label{display:block;margin:10px 0 6px;color:var(--muted)}
input[type="text"],input[type="email"],input[type="password"],textarea,select{
  width:100%;
  padding:10px 12px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(0,0,0,.25);
  color:var(--text);
}
textarea{min-height:140px}
.row{display:flex;gap:12px}
.row>*{flex:1}
.btn{
  display:inline-block;
  padding:10px 12px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(122,162,255,.12);
  color:var(--text);
  cursor:pointer;
}
.btn:hover{background:rgba(122,162,255,.18)}
.btn.danger{background:rgba(255,107,107,.12)}
.btn.danger:hover{background:rgba(255,107,107,.18)}
.btn.ghost{background:transparent}
.btn.ghost:hover{background:rgba(255,255,255,.04)}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);vertical-align:top}
footer.site-footer{border-top:1px solid var(--border);color:var(--muted)}
/* Fullscreen overlay (card expands) */
.overlay{
  position:fixed;inset:0;z-index:200;
  display:none;
  background:rgba(0,0,0,.55);
  backdrop-filter:blur(6px);
  padding:18px;
}
.overlay.open{display:block}
.overlay-panel{
  max-width:1100px;
  margin:0 auto;
  height:calc(100vh - 36px);
  background:rgba(10,14,30,.92);
  border:1px solid var(--border);
  border-radius:18px;
  overflow:auto;
  box-shadow:0 30px 90px rgba(0,0,0,.55);
  animation:pop .16s ease-out;
}
@keyframes pop{from{transform:scale(.985);opacity:.7}to{transform:scale(1);opacity:1}}
.overlay-head{
  position:sticky;top:0;z-index:1;
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:14px 14px;
  background:rgba(0,0,0,.25);
  border-bottom:1px solid var(--border);
}
.overlay-body{padding:14px 16px 20px}
.overlay-title{margin:0;font-size:18px}
.overlay-sub{margin:6px 0 0;color:var(--muted)}
.prose{max-width:900px}
.prose img{max-width:100%;height:auto;border-radius:12px;border:1px solid var(--border)}
.prose a{word-break:break-word}