:root{
  --bg:#0b1020; --panel:#11172e; --soft:#0f1a36;
  --text:#eaf0ff; --muted:#a9b4d0;
  --border:#1f2a52; --ring:#2b3c7a;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:radial-gradient(1200px 800px at 70% -10%, #162556 0, var(--bg) 60%), var(--bg);
     color:var(--text); font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji",sans-serif}
a{color:inherit;text-decoration:none}
.wrap{max-width:1100px;margin:0 auto;padding:20px}

/* Top bar */
.topbar{background:linear-gradient(180deg,#1a2452,#131a39); color:#fff; border-bottom:1px solid #1f2a52; position:sticky; top:0; z-index:5}
.topbar-inner{display:flex;align-items:center;justify-content:space-between; gap:10px}
.title{margin:0;font-size:22px;font-weight:800}
.btn{border:1px solid var(--border);background:#fff;color:#0f172a;padding:8px 12px;border-radius:10px;cursor:pointer}
.btn.link:hover{box-shadow:0 2px 6px rgba(0,0,0,.25)}

.muted{color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:12px}
.card{background:linear-gradient(180deg,var(--soft),var(--panel));border:1px solid var(--border);border-radius:14px;overflow:hidden;cursor:pointer;transition:transform .15s ease,border-color .15s ease}
.card:hover{transform:translateY(-2px);border-color:#2e3b74}
.card img{display:block;width:100%;height:200px;object-fit:cover;background:#0f1a36}

/* Lightbox overlay */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;padding:20px}
.overlay.show{display:flex}
.overlay img{max-width:92vw;max-height:92vh;box-shadow:0 10px 40px rgba(0,0,0,.6);border:1px solid #33406f;border-radius:12px}

/* Small helpers */
kbd{background:#141c38;border:1px solid #2b3c7a;border-radius:6px;padding:1px 6px;font-size:90%}