/* Minimal light theme */
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font-family:Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;line-height:1.4;color:#0f1720;background:#fbfbfb}

/* Topbar */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background:#fff;border-bottom:1px solid #e6e6e6}
.brand{font-weight:600;color:#0b1220}
.top-actions{display:flex;gap:8px;align-items:center}
.top-actions input{padding:8px;border-radius:6px;border:1px solid #e6e6e6;background:#fff;color:#0b1220;width:320px}
.btn{display:inline-block;padding:8px 10px;border-radius:6px;border:1px solid #e6e6e6;background:#fff;color:#0b1220;text-decoration:none}

/* Tabs */
.tabs{display:flex;gap:4px}
.tab{padding:8px 16px;border-radius:6px;background:#f7f7f7;color:#6b7280;cursor:pointer;text-decoration:none;transition:all 0.2s;font-size:0.9rem;border:1px solid #e6e6e6}
.tab:hover{color:#0b1220;background:#eee}
.tab.active{color:#fff;background:#3182bd;font-weight:500;border-color:#3182bd}

/* Layout */
.layout{display:grid;grid-template-columns:240px 1fr 280px;gap:12px;padding:18px;max-width:1200px;margin:0 auto}
.panel{background:#fff;padding:12px;border-radius:8px;border:1px solid #f0f0f0}
.results{list-style:none;padding:0;margin:0}
.result-item{padding:8px;border-radius:6px;cursor:pointer;color:#0b1220}
.result-item:hover{background:#f7f7f7}
.result-item.active{background:#eef7f6;border-left:3px solid #39a1a3}
.concept-view .details{margin-top:8px;color:#24303a}
.relations{list-style:none;padding:0;margin:0}
.muted{color:#6b7280}

/* Responsive */
@media (max-width:900px){
	.layout{grid-template-columns:1fr;padding:12px}
	.top-actions input{width:160px}
}