:root{--bg:#0f1724;--card:#111827;--muted:#94a3b8;--accent:#06b6d4;--accent-2:#7c3aed}
html,body{height:100%;margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,'Helvetica Neue',Arial}
body{background:linear-gradient(180deg,#071022 0%,#071734 100%);color:#e6eef8;display:flex;align-items:center;justify-content:center;padding:24px}
.app{width:100%;max-width:980px;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.04);box-shadow:0 6px 30px rgba(2,6,23,0.6);border-radius:12px;overflow:hidden;display:grid;grid-template-columns:320px 1fr}
.header{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;padding:12px 18px;border-bottom:1px solid rgba(255,255,255,0.03);background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent)}
.header .brand{font-weight:700}
.header .nav a{color:var(--muted);text-decoration:none;margin-left:12px}
.sidebar{padding:18px;border-right:1px solid rgba(255,255,255,0.02);background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent)}
h1{font-size:18px;margin:0 0 12px 0}
.status{display:flex;gap:8px;align-items:center;margin-bottom:12px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--muted);box-shadow:0 0 6px rgba(0,0,0,0.6) inset}
.controls{display:flex;gap:8px;margin-bottom:12px}
.controls input{flex:1;padding:8px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:transparent;color:inherit}
.controls button{padding:8px 10px;border-radius:8px;border:0;background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#042027;font-weight:600;cursor:pointer}
.main{display:flex;flex-direction:column;height:520px}
.messages{flex:1;padding:18px;overflow:auto;background:linear-gradient(180deg,rgba(255,255,255,0.01),transparent)}
.messages ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.messages li{padding:10px 12px;border-radius:8px;background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.01);max-width:86%}
.composer{display:flex;padding:12px;border-top:1px solid rgba(255,255,255,0.02);gap:8px}
.composer input{flex:1;padding:10px 12px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:transparent;color:inherit}
.composer button{padding:10px 14px;border-radius:8px;border:0;background:var(--accent);color:#042027;font-weight:700;cursor:pointer}
.meta{font-size:12px;color:var(--muted);margin-top:6px}
@media (max-width:880px){.app{grid-template-columns:1fr}.sidebar{display:none}}

/* Admin page tweaks */
.admin-wrapper{width:100%;max-width:980px;padding:18px;border-radius:8px;background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.03)}
.admin-wrapper h2{margin-top:0;color:#e6eef8}
.admin-table td,.admin-table th{padding:8px;border-bottom:1px dashed rgba(255,255,255,0.03);font-size:13px;color:#e6eef8}
.admin-table th{color:var(--muted);text-align:left}