:root {
  --bg: #111418;
  --card: #1a1f27;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --accent: #4c8bf5;
  --danger: #e0533d;
  --border: #2a2f38;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.app { width: 100%; max-width: 420px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 8px 30px rgba(0,0,0,.4);
}

.avatar {
  font-size: 56px;
  width: 88px;
  height: 88px;
  margin: 0 auto 12px;
  background: #222a35;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border);
  transition: all .3s;
}
.avatar.speaking { border-color: var(--green); box-shadow: 0 0 20px rgba(72,187,120,.4); }
.avatar.connected { border-color: var(--accent); }

h1 { font-size: 24px; margin-bottom: 4px; }
.status { color: var(--muted, #9aa0a6); font-size: 14px; margin-bottom: 20px; min-height: 20px; }

.controls { display: flex; gap: 8px; justify-content: center; margin-bottom: 20px; }

.btn {
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #222a35;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
}
.btn:hover:not(:disabled) { filter: brightness(1.15); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); }
.btn.danger { background: var(--green); border-color: var(--green); }

.log {
  text-align: left;
  font-size: 12px;
  color: var(--muted);
  background: #0e1116;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  min-height: 90px;
  max-height: 180px;
  overflow-y: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.log .row { padding: 2px 0; word-break: break-word; }
.log .row.user { color: #4c8bf5; }
.log .row.agent { color: #72d6a0; }
.log .row.sys { color: #8b90a0; }