:root {
  --bg: #0b1020;
  --card: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --accent: #7c3aed;
  --accent2: #22c55e;
  --danger: #ef4444;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 20% 10%, rgba(124, 58, 237, 0.35), transparent 60%),
              radial-gradient(900px 700px at 90% 20%, rgba(34, 197, 94, 0.18), transparent 55%),
              var(--bg);
  color: var(--text);
}

.wrap {
  max-width: 920px;
  margin: 40px auto;
  padding: 0 16px 48px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

h1 { margin: 0; font-size: 28px; letter-spacing: 0.2px; }
.sub { margin: 6px 0 0; color: var(--muted); }

.card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  backdrop-filter: blur(10px);
}

.card + .card { margin-top: 14px; }

h2 { margin: 0 0 8px; font-size: 18px; }

.muted { color: var(--muted); }

.row {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

input {
  flex: 1;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.28);
  color: var(--text);
  outline: none;
}

input:focus {
  border-color: rgba(124, 58, 237, 0.6);
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.15);
}

.btn {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(124, 58, 237, 0.5);
  background: rgba(124, 58, 237, 0.25);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.04s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn:hover { background: rgba(124, 58, 237, 0.35); }
.btn:active { transform: translateY(1px); }

.btn.secondary {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.btn.secondary:hover { background: rgba(255, 255, 255, 0.12); }

.error {
  margin: 10px 0 0;
  color: var(--danger);
}

.chatTop {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.messages {
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(0,0,0,0.20);
  height: 420px;
  overflow: auto;
  padding: 12px;
}

.msg {
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 12px;
  padding: 10px 10px;
  margin: 0 0 10px;
}

.msg.user { border-color: rgba(34, 197, 94, 0.25); }
.msg.assistant { border-color: rgba(124, 58, 237, 0.25); }

.meta {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.body {
  white-space: pre-wrap;
  line-height: 1.35;
}

.debug {
  margin-top: 12px;
}

pre {
  margin: 10px 0 0;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.25);
  overflow: auto;
}

.foot {
  margin-top: 14px;
  display: flex;
  justify-content: center;
}