#agent-bubble {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #3b82f6;
  color: #fff;
  border: none;
  box-shadow: 0 8px 24px rgba(59,130,246,0.35);
  cursor: pointer;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2147483000;
}

#agent-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: 380px;
  max-width: 92vw;
  height: 100vh;
  background: #fff;
  box-shadow: -8px 0 32px rgba(0,0,0,0.15);
  transform: translateX(100%);
  transition: transform 0.28s ease;
  z-index: 2147483001;
  display: flex;
  flex-direction: column;
  border-left: 1px solid #e5e7eb;
}

#agent-sidebar.open { transform: translateX(0); }

.agent-header {
  height: 48px;
  display: flex;
  align-items: center;
  padding: 0 12px 0 14px;
  border-bottom: 1px solid #f1f5f9;
  background: #f8fafc;
}

.agent-title { font-weight: 600; color: #0f172a; }

#agent-close {
  margin-left: auto;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: none;
  background: transparent;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  color: #334155;
}
#agent-close:hover { background: #eef2f7; }

.agent-content { flex: 1; display: flex; flex-direction: column; }

.agent-chat { display: flex; flex-direction: column; height: 100%; }
.agent-messages { flex: 1; overflow: auto; padding: 12px; }
.agent-message { margin-bottom: 10px; }
.agent-message.user { text-align: right; }
.agent-message.assistant { text-align: left; }

.agent-input-row {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid #e5e7eb;
}
.agent-input-row textarea {
  flex: 1;
  resize: none;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #e5e7eb;
  font-size: 14px;
}
.agent-input-row button {
  padding: 0 14px;
  border-radius: 10px;
  background: #3b82f6;
  color: #fff;
  border: none;
}

@supports (padding: max(0px)) {
  #agent-bubble { bottom: max(20px, env(safe-area-inset-bottom)); }
}