/* Use a lightweight subset of the frontend styles for the demo */
/* keep naming consistent with frontend */
*{box-sizing:border-box}
body{font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;margin:0;background:linear-gradient(180deg,#f6f9fc,#eef3f8);color:#0f172a}
.site-header{background:#fff;padding:14px 20px;box-shadow:0 1px 0 rgba(16,24,40,0.04);position:sticky;top:0}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:44px;height:44px;border-radius:8px}
.app{max-width:1100px;margin:28px auto;padding:0 16px}
.site-nav{display:flex;gap:8px;justify-content:center;margin:16px 0}
.nav-btn{padding:8px 12px;border-radius:10px;border:1px solid transparent;background:transparent;cursor:pointer}
.main-card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 8px 24px rgba(15,23,42,0.06)}

/* Demo-specific layout */
.demo-hero{display:flex;flex-direction:column;gap:18px}
.demo-intro{display:flex;flex-direction:column;gap:8px}
.controls{display:flex;align-items:center;gap:12px;margin-top:8px}
.primary{background:#2563eb;color:#fff;border:none;padding:10px 14px;border-radius:8px;cursor:pointer}
.primary:disabled{opacity:0.6;cursor:not-allowed}
.scan-status{font-size:14px;color:#475569}
.demo-layout{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:12px}
.panel{background:#fbfdff;border-radius:10px;padding:12px;border:1px solid rgba(15,23,42,0.03)}
.panel-note{font-size:13px;color:#64748b;margin:0 0 8px}
.duplicates-list{list-style:none;padding:0;margin:0}
.dup-item{display:flex;justify-content:space-between;padding:10px;border-bottom:1px solid rgba(15,23,42,0.03);cursor:pointer}
.dup-item:focus{outline:2px solid rgba(37,99,235,0.15);}
.dup-name{font-weight:500;color:#0f172a}
.dup-meta{color:#64748b;font-size:13px}
.viz{min-height:160px}

@media (max-width:800px){
	.demo-layout{grid-template-columns:1fr;}
}

/* accessibility + modal */
.hidden{display:none}
.modal{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:1200}
.modal.hidden{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(2,6,23,0.45)}
.modal-content{position:relative;background:#fff;border-radius:10px;max-width:640px;width:min(94%,640px);padding:18px;box-shadow:0 12px 40px rgba(2,6,23,0.12);z-index:1201}
.modal-header{display:flex;align-items:center;justify-content:space-between}
.modal-body{margin-top:12px}
.modal-footer{margin-top:12px;text-align:right}

/* focus styles */
.nav-btn:focus-visible, .primary:focus-visible, .dup-item:focus-visible { outline:3px solid rgba(37,99,235,0.18); outline-offset:2px }
.nav-btn{transition:background .12s ease-color}
.nav-btn[aria-pressed="true"]{background:#eef2ff}
.primary{transition:opacity .12s ease}
.dup-item:hover{background:#fbfdff}

/* panel headings */
.panel h3{margin:0 0 8px 0;font-size:16px}

/* small responsive tweaks */
@media (max-width:520px){
	.primary{padding:8px 10px}
	.demo-intro h2{font-size:18px}
}