/* Modernized Force Multiplier styles */
:root{
  --bg:#071422;
  --panel:#0f1720;
  --accent:#6bc1ff;
  --muted:#89a0b3;
  --text:#e6eef6;
}
*{box-sizing:border-box}
html,body{height:100%}
body {
  margin:0;
  min-height:100vh;
  background: linear-gradient(180deg,var(--bg) 0%, #04121a 100%);
  color:var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}
header.navbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;background:rgba(255,255,255,0.02);
  border-bottom:1px solid rgba(255,255,255,0.03);
  box-shadow: 0 4px 20px rgba(0,0,0,0.6);
}
.logo a{color:var(--accent);text-decoration:none;font-weight:700;font-size:1.15rem}
.nav{display:flex;gap:8px;align-items:center}
.nav a{color:var(--muted);text-decoration:none;padding:8px 10px;border-radius:8px}
.nav a:hover{color:var(--text);background:rgba(255,255,255,0.02)}
.container{max-width:1100px;margin:28px auto;padding:16px}
.section-grid{display:grid;grid-template-columns:1fr 420px;gap:18px}
@media (max-width:980px){.section-grid{grid-template-columns:1fr;padding:0;gap:12px}}
.card{background:linear-gradient(180deg, rgba(255,255,255,0.012), rgba(255,255,255,0.006));border:1px solid rgba(255,255,255,0.03);padding:16px;border-radius:12px;box-shadow: 0 8px 30px rgba(2,6,23,0.6)}
h1,h2,h3{margin:0 0 12px 0}
textarea,input,select{background:#07101a;border:1px solid rgba(255,255,255,0.04);color:var(--text);padding:8px;border-radius:8px;outline:none}
textarea{min-height:120px}
button{background:linear-gradient(180deg,var(--accent),#2ea3e6);color:#012;padding:8px 12px;border:none;border-radius:10px;cursor:pointer;font-weight:700}
button.btn-secondary{background:transparent;border:1px solid rgba(255,255,255,0.03);color:var(--muted);padding:8px 10px}
button:hover{filter:brightness(1.03);transform:translateY(-1px)}
pre{background:#04121a;color:#bfe8ff;padding:12px;border-radius:8px;overflow:auto;border:1px solid rgba(255,255,255,0.03)}
.small{color:var(--muted);font-size:0.95rem}
footer.footer{text-align:center;padding:18px 0;color:#6f8596;font-size:12px}
#sandbox-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(2,6,12,0.95);color:var(--text);display:none;z-index:9999}
#file-list li{cursor:pointer}
/* utility */
.row{display:flex;gap:8px;align-items:center}