#bf-chat-root {
  --bf-green-900: #12281c;
  --bf-green-800: #173a27;
  --bf-green-100: #eaf3ea;
  --bf-cream: #fdfcfa;
  --bf-line: #e7e4dd;
  --bf-ink: #1b1b18;
  --bf-ink-soft: #6b6b64;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

#bf-chat-launcher {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 9999;
  background: var(--bf-green-800);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(18, 40, 28, 0.25);
}
#bf-chat-launcher:hover { background: var(--bf-green-900); }

#bf-chat-panel {
  position: fixed;
  right: 22px;
  bottom: 92px;
  z-index: 9999;
  width: 380px;
  max-width: calc(100vw - 32px);
  height: 560px;
  max-height: calc(100vh - 140px);
  background: var(--bf-cream);
  border: 1px solid var(--bf-line);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.18);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#bf-chat-panel[hidden] {
  display: none !important;
}

#bf-chat-header {
  background: var(--bf-green-800);
  color: #fff;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
#bf-chat-header strong { display: block; font-size: 14px; }
#bf-chat-header span { display: block; font-size: 11.5px; opacity: .8; margin-top: 2px; }
#bf-chat-close {
  background: none; border: none; color: #fff; font-size: 16px; cursor: pointer; opacity: .8;
}
#bf-chat-close:hover { opacity: 1; }

#bf-chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bf-cream);
}

.bf-msg { display: flex; }
.bf-msg-user { justify-content: flex-end; }
.bf-msg-assistant { justify-content: flex-start; }

.bf-bubble {
  max-width: 85%;
  padding: 10px 13px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.45;
  white-space: pre-wrap;
}
.bf-msg-user .bf-bubble {
  background: var(--bf-green-800);
  color: #fff;
  border-bottom-right-radius: 3px;
}
.bf-msg-assistant .bf-bubble {
  background: #fff;
  border: 1px solid var(--bf-line);
  color: var(--bf-ink);
  border-bottom-left-radius: 3px;
}

.bf-typing { display: flex; gap: 4px; align-items: center; padding: 12px 14px; }
.bf-typing span {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--bf-ink-soft);
  animation: bf-bounce 1.2s infinite ease-in-out;
}
.bf-typing span:nth-child(2) { animation-delay: .15s; }
.bf-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes bf-bounce { 0%,60%,100%{transform:translateY(0);opacity:.5;} 30%{transform:translateY(-4px);opacity:1;} }

.bf-product-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
  max-width: 92%;
}
.bf-product-card {
  display: flex;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--bf-line);
  border-radius: 10px;
  padding: 10px;
  text-decoration: none;
  color: inherit;
  transition: border-color .15s ease;
}
.bf-product-card:hover { border-color: var(--bf-green-800); }
.bf-pc-img {
  flex: 0 0 52px;
  height: 52px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--bf-green-900), var(--bf-green-800));
  background-size: cover;
  background-position: center;
}
.bf-pc-name { font-size: 12.5px; font-weight: 700; color: var(--bf-ink); }
.bf-pc-tags { display: flex; gap: 4px; margin: 3px 0; flex-wrap: wrap; }
.bf-pc-tags span {
  font-size: 9.5px; font-weight: 700; background: var(--bf-green-100);
  color: var(--bf-green-800); padding: 1px 6px; border-radius: 20px;
}
.bf-pc-desc { font-size: 11px; color: var(--bf-ink-soft); margin-bottom: 3px; }
.bf-pc-cta { font-size: 11px; font-weight: 700; color: var(--bf-green-800); }

#bf-chat-form {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--bf-line);
  background: #fff;
}
#bf-chat-input {
  flex: 1;
  border: 1px solid var(--bf-line);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  outline: none;
  font-family: inherit;
}
#bf-chat-input:focus { border-color: var(--bf-green-800); }
#bf-chat-form button[type="submit"] {
  background: var(--bf-green-800);
  color: #fff;
  border: none;
  border-radius: 8px;
  width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
#bf-chat-form button[type="submit"]:hover { background: var(--bf-green-900); }

@media (max-width: 480px) {
  #bf-chat-panel { right: 16px; left: 16px; width: auto; bottom: 84px; }
  #bf-chat-launcher { right: 16px; bottom: 16px; }
}