:root{
  --bg: #0b0f17;
  --panel: rgba(255,255,255,0.06);
  --panel2: rgba(255,255,255,0.08);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.65);
  --border: rgba(255,255,255,0.12);
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --accent: #7c5cff;
  --accent2:#00d4ff;
  --good:#2bd576;
  --bad:#ff4d6d;
  --warn:#ffcc00;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
}

[data-theme="light"]{
  --bg:#f5f7fb;
  --panel:#ffffff;
  --panel2:#f0f3fb;
  --text:#0b0f17;
  --muted: rgba(11,15,23,0.62);
  --border: rgba(11,15,23,0.12);
  --shadow: 0 10px 30px rgba(0,0,0,0.10);
  --accent:#6b5cff;
  --accent2:#0077ff;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background: radial-gradient(1200px 700px at 10% 10%, rgba(124,92,255,0.25), transparent 55%),
              radial-gradient(900px 600px at 90% 20%, rgba(0,212,255,0.18), transparent 55%),
              var(--bg);
  color:var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

.app{ max-width: 1200px; margin: 22px auto; padding: 0 16px; }

.topbar{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 14px;
  border:1px solid var(--border);
  background: linear-gradient(180deg, var(--panel), transparent);
  border-radius: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.brand{ display:flex; gap:12px; align-items:center; }
.logo{
  width:44px; height:44px; border-radius: 14px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  font-weight: 800;
  letter-spacing: -0.5px;
}
.title{ font-weight:800; font-size:18px; line-height:1.1; }
.subtitle{ color:var(--muted); font-size:12px; margin-top:2px; }

.top-actions{ display:flex; gap:10px; align-items:center; }

.grid{
  margin-top: 14px;
  display:grid;
  grid-template-columns: 380px 1fr;
  gap: 14px;
}

.panel, .chat{
  border:1px solid var(--border);
  background: var(--panel);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow:hidden;
}

.panel-header, .chat-header{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 14px;
  border-bottom:1px solid var(--border);
  background: linear-gradient(180deg, var(--panel2), transparent);
}

h3{ margin:0; font-size: 14px; letter-spacing: 0.2px; }

.pill{
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border:1px solid var(--border);
  color: var(--muted);
  background: rgba(0,0,0,0.06);
}

.tabs{
  display:flex; gap:8px;
  padding: 12px 14px 0 14px;
}

.tab{
  flex:1;
  border:1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 14px;
  cursor:pointer;
  font-weight: 700;
  transition: 120ms ease;
}
.tab:hover{ transform: translateY(-1px); }
.tab.active{
  color: var(--text);
  border-color: rgba(124,92,255,0.55);
  background: linear-gradient(180deg, rgba(124,92,255,0.20), transparent);
}

.form{ padding: 12px 14px 14px 14px; }

label{
  display:block;
  margin-top: 12px;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--muted);
}

input, textarea{
  width:100%;
  border:1px solid var(--border);
  background: rgba(0,0,0,0.08);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 12px;
  outline: none;
}
[data-theme="light"] input, [data-theme="light"] textarea{
  background: rgba(11,15,23,0.04);
}

textarea{ min-height: 120px; resize: vertical; }

.row{ display:flex; gap:10px; align-items:center; }
.row > *:first-child{ flex:1; }

.hint{ margin-top:8px; font-size:12px; color:var(--muted); }
code{ font-family: var(--mono); font-size: 12px; }

.btn{
  border:1px solid var(--border);
  background: rgba(0,0,0,0.06);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 14px;
  cursor:pointer;
  font-weight: 700;
  transition: 120ms ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn:disabled{ opacity:0.6; cursor:not-allowed; transform:none; }

.btn-primary{
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: white;
}

.btn-ghost{ background: transparent; }

.statusbox{
  margin-top: 12px;
  border:1px dashed var(--border);
  border-radius: 14px;
  padding: 10px 12px;
}
.statusline{ display:flex; align-items:center; gap:10px; font-weight: 800; }
.statusmeta{ margin-top:6px; color:var(--muted); font-size: 12px; }
.dot{
  width:10px; height:10px; border-radius: 99px;
  background: rgba(255,255,255,0.25);
  box-shadow: 0 0 0 6px rgba(255,255,255,0.06);
}
.dot.good{ background: var(--good); box-shadow: 0 0 0 6px rgba(43,213,118,0.15); }
.dot.bad{ background: var(--bad); box-shadow: 0 0 0 6px rgba(255,77,109,0.15); }
.dot.warn{ background: var(--warn); box-shadow: 0 0 0 6px rgba(255,204,0,0.15); }

.chatlog{
  height: calc(100vh - 320px);
  min-height: 360px;
  overflow:auto;
  padding: 14px;
  display:flex;
  flex-direction: column;
  gap: 10px;
}

.msg{
  max-width: 82%;
  border:1px solid var(--border);
  background: rgba(0,0,0,0.06);
  padding: 10px 12px;
  border-radius: 16px;
  box-shadow: 0 8px 18px rgba(0,0,0,0.12);
}
.msg.user{ margin-left:auto; border-color: rgba(0,212,255,0.35); background: rgba(0,212,255,0.08); }
.msg.assistant{ margin-right:auto; border-color: rgba(124,92,255,0.35); background: rgba(124,92,255,0.10); }
.msg .meta{ font-size: 11px; color: var(--muted); margin-bottom: 6px; display:flex; justify-content:space-between; gap:8px;}
.msg .text{ white-space: pre-wrap; word-wrap: break-word; font-size: 14px; line-height: 1.35; }
.msg .tools{ margin-top: 8px; display:flex; gap: 8px; }
.msg .mini{ font-size: 12px; padding: 7px 10px; border-radius: 12px; }

.composer{
  border-top:1px solid var(--border);
  padding: 12px 14px 14px 14px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.08));
}
.composer-actions{ display:flex; gap:10px; margin-top: 10px; }
.composer-actions .btn{ flex:1; }
.small{ font-size: 12px; color: var(--muted); margin-top: 8px; min-height: 16px; }

.footer{
  margin-top: 14px;
  display:flex; justify-content:space-between; align-items:center;
  color: var(--muted);
  font-size: 12px;
  padding: 0 6px;
}

@media (max-width: 980px){
  .grid{ grid-template-columns: 1fr; }
  .chatlog{ height: 55vh; }
}