:root { --phai-accent: #b6975b; }

/* Hard scope everything so theme/button/form CSS cannot distort the widget. */
.phai-root,
.phai-root * {
  box-sizing: border-box !important;
}

.phai-root {
  position: fixed !important;
  right: 22px !important;
  bottom: 22px !important;
  z-index: 999999 !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif !important;
  font-size: 14px !important;
  line-height: 1.4 !important;
  color: #222 !important;
}

.phai-root button,
.phai-root input,
.phai-root textarea,
.phai-root a {
  font-family: inherit !important;
  letter-spacing: normal !important;
  text-transform: none !important;
}

.phai-tab {
  appearance: none !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  min-width: 0 !important;
  min-height: 0 !important;
  width: auto !important;
  height: auto !important;
  border: 0 !important;
  border-radius: 999px !important;
  background: var(--phai-accent) !important;
  color: #fff !important;
  padding: 13px 20px !important;
  margin: 0 !important;
  font-size: 15px !important;
  line-height: 1 !important;
  font-weight: 700 !important;
  box-shadow: 0 12px 30px rgba(0,0,0,.24) !important;
  cursor: pointer !important;
}

.phai-panel {
  display: none !important;
  width: 400px !important;
  max-width: calc(100vw - 28px) !important;
  height: 620px !important;
  max-height: calc(100vh - 96px) !important;
  min-height: 430px !important;
  background: #fff !important;
  border: 1px solid rgba(0,0,0,.12) !important;
  border-radius: 18px !important;
  overflow: hidden !important;
  box-shadow: 0 22px 60px rgba(0,0,0,.28) !important;
  margin: 0 0 14px 0 !important;
  padding: 0 !important;
}

.phai-open .phai-panel {
  display: flex !important;
  flex-direction: column !important;
}

.phai-open .phai-tab { display: none !important; }

.phai-header {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 14px !important;
  flex: 0 0 auto !important;
  padding: 18px 18px !important;
  background: #111 !important;
  color: #fff !important;
  min-height: 86px !important;
}

.phai-header strong {
  display: block !important;
  color: #fff !important;
  font-size: 17px !important;
  line-height: 1.2 !important;
  font-weight: 700 !important;
  margin: 0 !important;
}

.phai-header span {
  display: block !important;
  color: rgba(255,255,255,.78) !important;
  font-size: 13px !important;
  line-height: 1.3 !important;
  margin: 5px 0 0 !important;
}

.phai-close {
  appearance: none !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 36px !important;
  height: 36px !important;
  min-width: 36px !important;
  min-height: 36px !important;
  padding: 0 !important;
  margin: 0 !important;
  background: transparent !important;
  border: 0 !important;
  color: #fff !important;
  font-size: 32px !important;
  line-height: 1 !important;
  font-weight: 600 !important;
  cursor: pointer !important;
}

.phai-messages {
  flex: 1 1 auto !important;
  min-height: 0 !important;
  overflow-y: auto !important;
  padding: 16px !important;
  margin: 0 !important;
  background: #f7f7f7 !important;
}

.phai-msg {
  display: block !important;
  max-width: 92% !important;
  border-radius: 14px !important;
  padding: 12px 14px !important;
  margin: 0 0 11px 0 !important;
  font-size: 14px !important;
  line-height: 1.45 !important;
}

.phai-msg p { margin: 0 0 8px 0 !important; }
.phai-msg p:last-child, .phai-msg ul:last-child { margin-bottom: 0 !important; }
.phai-assistant { background: #fff !important; color: #1a1a1a !important; border: 1px solid rgba(0,0,0,.08) !important; }
.phai-user { background: var(--phai-accent) !important; color: #fff !important; margin-left: auto !important; }

.phai-actions {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 10px !important;
  flex: 0 0 auto !important;
  padding: 12px 14px !important;
  margin: 0 !important;
  border-top: 1px solid rgba(0,0,0,.08) !important;
  background: #fff !important;
}

.phai-action {
  appearance: none !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 100% !important;
  min-width: 0 !important;
  height: 52px !important;
  min-height: 52px !important;
  padding: 8px 10px !important;
  margin: 0 !important;
  text-align: center !important;
  border-radius: 12px !important;
  border: 1px solid rgba(0,0,0,.16) !important;
  background: #fff !important;
  color: #222 !important;
  font-size: 13px !important;
  line-height: 1.2 !important;
  font-weight: 700 !important;
  text-decoration: none !important;
  cursor: pointer !important;
  white-space: normal !important;
}

.phai-lead-form {
  flex: 0 0 auto !important;
  max-height: 330px !important;
  overflow-y: auto !important;
  padding: 14px !important;
  margin: 0 !important;
  border-top: 1px solid rgba(0,0,0,.08) !important;
  background: #fff !important;
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 9px !important;
}

.phai-lead-form[hidden] { display: none !important; }

.phai-lead-form input,
.phai-lead-form textarea,
.phai-input {
  appearance: none !important;
  display: block !important;
  width: 100% !important;
  min-width: 0 !important;
  max-width: 100% !important;
  min-height: 44px !important;
  height: auto !important;
  box-sizing: border-box !important;
  border: 1px solid rgba(0,0,0,.18) !important;
  border-radius: 12px !important;
  background: #fff !important;
  color: #222 !important;
  padding: 10px 12px !important;
  margin: 0 !important;
  font-size: 15px !important;
  line-height: 1.35 !important;
  font-weight: 400 !important;
  box-shadow: none !important;
  outline: none !important;
}

.phai-lead-form textarea {
  min-height: 74px !important;
  max-height: 110px !important;
  resize: vertical !important;
}

.phai-lead-form button,
.phai-send {
  appearance: none !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: auto !important;
  min-width: 0 !important;
  min-height: 44px !important;
  border: 0 !important;
  border-radius: 12px !important;
  background: var(--phai-accent) !important;
  color: #fff !important;
  padding: 10px 14px !important;
  margin: 0 !important;
  font-size: 14px !important;
  line-height: 1 !important;
  font-weight: 700 !important;
  box-shadow: none !important;
  cursor: pointer !important;
  text-decoration: none !important;
  text-transform: none !important;
}

.phai-lead-form button {
  width: 100% !important;
}

.phai-form {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) 82px !important;
  gap: 10px !important;
  align-items: stretch !important;
  flex: 0 0 auto !important;
  padding: 14px !important;
  margin: 0 !important;
  border-top: 1px solid rgba(0,0,0,.08) !important;
  background: #fff !important;
}

.phai-input {
  resize: none !important;
  min-height: 48px !important;
  max-height: 88px !important;
  overflow-y: auto !important;
}

.phai-send {
  width: 82px !important;
  height: 48px !important;
  min-height: 48px !important;
  padding: 0 10px !important;
  font-size: 14px !important;
  white-space: nowrap !important;
}

.phai-products { display: grid !important; gap: 8px !important; margin: 10px 0 0 !important; }
.phai-product { display: grid !important; grid-template-columns: 54px minmax(0,1fr) !important; gap: 4px 10px !important; align-items: center !important; padding: 8px !important; border-radius: 12px !important; border: 1px solid rgba(0,0,0,.08) !important; background: #fafafa !important; color: inherit !important; text-decoration: none !important; }
.phai-product img { width: 54px !important; height: 54px !important; object-fit: cover !important; border-radius: 8px !important; grid-row: span 3 !important; background: #eee !important; }
.phai-product-name { display: block !important; font-weight: 700 !important; font-size: 13px !important; line-height: 1.25 !important; color: #222 !important; }
.phai-product-meta { display: block !important; font-size: 12px !important; line-height: 1.25 !important; opacity: .8 !important; color: #222 !important; }
.phai-stock { display: block !important; font-size: 11px !important; text-transform: uppercase !important; letter-spacing: .03em !important; font-weight: 700 !important; line-height: 1.2 !important; }
.phai-stock.in { color: #147a35 !important; }
.phai-stock.out { color: #9a1d1d !important; }

@media (max-width: 520px) {
  .phai-root { right: 10px !important; bottom: 10px !important; left: 10px !important; }
  .phai-panel { width: 100% !important; max-width: none !important; height: calc(100vh - 28px) !important; max-height: calc(100vh - 28px) !important; min-height: 0 !important; border-radius: 16px !important; }
  .phai-header { padding: 16px !important; min-height: 82px !important; }
  .phai-actions { padding: 10px 12px !important; gap: 8px !important; }
  .phai-action { height: 48px !important; min-height: 48px !important; font-size: 12px !important; padding: 7px 8px !important; }
  .phai-lead-form { max-height: 300px !important; padding: 12px !important; }
  .phai-form { grid-template-columns: minmax(0, 1fr) 76px !important; padding: 12px !important; gap: 8px !important; }
  .phai-send { width: 76px !important; font-size: 13px !important; }
}

@media (max-width: 360px) {
  .phai-actions { grid-template-columns: 1fr !important; }
  .phai-action { height: 44px !important; min-height: 44px !important; }
}