/* ===================================================
   Pallab AI Assistant – Widget Styles
   White modern SaaS UI
   =================================================== */

:root {
  --paa-accent:      #2563eb;
  --paa-accent-dark: #1d4ed8;
  --paa-accent-soft: #eff6ff;
  --paa-white:       #ffffff;
  --paa-gray-50:     #f9fafb;
  --paa-gray-100:    #f3f4f6;
  --paa-gray-200:    #e5e7eb;
  --paa-gray-400:    #9ca3af;
  --paa-gray-600:    #4b5563;
  --paa-gray-800:    #1f2937;
  --paa-radius:      16px;
  --paa-radius-sm:   10px;
  --paa-shadow:      0 20px 60px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.06);
  --paa-shadow-btn:  0 4px 14px rgba(37,99,235,0.35);
  --paa-font:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --paa-transition:  all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Launcher button ---- */
#pallab-ai-chatbot * { box-sizing: border-box; margin: 0; padding: 0; }

#paa-launcher {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 99998;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--paa-accent);
  border: none;
  cursor: pointer;
  box-shadow: var(--paa-shadow-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--paa-transition);
  color: #fff;
}
#paa-launcher:hover { transform: scale(1.08); background: var(--paa-accent-dark); }
#paa-launcher svg   { width: 28px; height: 28px; fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; }

#paa-badge {
  position: absolute;
  top: -4px; right: -4px;
  width: 18px; height: 18px;
  background: #ef4444;
  border-radius: 50%;
  font-size: 10px;
  color: #fff;
  font-family: var(--paa-font);
  display: flex; align-items: center; justify-content: center;
  font-weight: 600;
  border: 2px solid #fff;
  display: none;
}

/* ---- Chat window ---- */
#paa-window {
  position: fixed;
  bottom: 100px;
  right: 28px;
  z-index: 99999;
  width: 380px;
  max-width: calc(100vw - 32px);
  height: 580px;
  max-height: calc(100vh - 120px);
  background: var(--paa-white);
  border-radius: var(--paa-radius);
  box-shadow: var(--paa-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-family: var(--paa-font);
  border: 1px solid var(--paa-gray-200);
  transform-origin: bottom right;
  transition: var(--paa-transition);
}
#paa-window.paa-hidden {
  opacity: 0;
  transform: scale(0.85) translateY(20px);
  pointer-events: none;
}
#paa-window.paa-visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* Header */
#paa-header {
  background: var(--paa-accent);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
#paa-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
#paa-header-info { flex: 1; min-width: 0; }
#paa-header-name { color: #fff; font-size: 15px; font-weight: 600; line-height: 1.2; }
#paa-header-tag  { color: rgba(255,255,255,0.8); font-size: 11.5px; margin-top: 2px; }
#paa-online-dot  {
  width: 8px; height: 8px;
  background: #4ade80;
  border-radius: 50%;
  display: inline-block;
  margin-right: 5px;
  animation: paa-pulse 2s infinite;
}
#paa-header-actions { display: flex; gap: 8px; }
.paa-header-btn {
  background: rgba(255,255,255,0.18);
  border: none;
  color: #fff;
  cursor: pointer;
  width: 30px; height: 30px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s;
  font-size: 14px;
}
.paa-header-btn:hover { background: rgba(255,255,255,0.3); }
.paa-header-btn svg { width: 16px; height: 16px; stroke: #fff; fill: none; stroke-width: 2; stroke-linecap: round; }

/* Messages area */
#paa-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--paa-gray-50);
  scroll-behavior: smooth;
}
#paa-messages::-webkit-scrollbar { width: 4px; }
#paa-messages::-webkit-scrollbar-track { background: transparent; }
#paa-messages::-webkit-scrollbar-thumb { background: var(--paa-gray-200); border-radius: 4px; }

/* Message bubbles */
.paa-msg { display: flex; gap: 8px; animation: paa-fade-in 0.25s ease; }
.paa-msg.paa-user { flex-direction: row-reverse; }

.paa-bubble {
  max-width: 78%;
  padding: 11px 14px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--paa-gray-800);
}
.paa-msg.paa-bot .paa-bubble {
  background: var(--paa-white);
  border: 1px solid var(--paa-gray-200);
  border-bottom-left-radius: 4px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}
.paa-msg.paa-user .paa-bubble {
  background: var(--paa-accent);
  color: #fff;
  border-bottom-right-radius: 4px;
  box-shadow: 0 2px 8px rgba(37,99,235,0.25);
}
.paa-msg.paa-user .paa-bubble strong { color: #fff; }
.paa-bubble strong { color: var(--paa-accent); }
.paa-bubble ul, .paa-bubble ol { padding-left: 18px; margin: 6px 0; }
.paa-bubble li { margin: 3px 0; }
.paa-bubble p  { margin: 4px 0; }

.paa-msg-time {
  font-size: 10.5px;
  color: var(--paa-gray-400);
  margin-top: 4px;
  align-self: flex-end;
}

.paa-bot-icon {
  width: 28px; height: 28px;
  background: var(--paa-accent-soft);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  align-self: flex-end;
}

/* Typing indicator */
#paa-typing {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
}
#paa-typing.active { display: flex; }
.paa-typing-dots {
  background: var(--paa-white);
  border: 1px solid var(--paa-gray-200);
  border-radius: 14px;
  border-bottom-left-radius: 4px;
  padding: 10px 14px;
  display: flex;
  gap: 4px;
  align-items: center;
}
.paa-typing-dot {
  width: 6px; height: 6px;
  background: var(--paa-gray-400);
  border-radius: 50%;
  animation: paa-typing 1.2s infinite;
}
.paa-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.paa-typing-dot:nth-child(3) { animation-delay: 0.4s; }

/* Quick replies */
#paa-quick-replies {
  padding: 10px 14px 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  background: var(--paa-gray-50);
  border-top: 1px solid var(--paa-gray-200);
  flex-shrink: 0;
}
.paa-qr {
  background: var(--paa-white);
  border: 1.5px solid var(--paa-gray-200);
  border-radius: 20px;
  padding: 6px 13px;
  font-size: 12.5px;
  color: var(--paa-accent);
  cursor: pointer;
  transition: var(--paa-transition);
  font-family: var(--paa-font);
  font-weight: 500;
}
.paa-qr:hover { background: var(--paa-accent); color: #fff; border-color: var(--paa-accent); }

/* Lead form */
#paa-lead-panel {
  background: var(--paa-white);
  border-top: 1px solid var(--paa-gray-200);
  padding: 14px;
  flex-shrink: 0;
  animation: paa-slide-up 0.25s ease;
}
#paa-lead-panel h4 {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--paa-gray-800);
  margin-bottom: 10px;
}
.paa-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 8px; }
.paa-input {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--paa-gray-200);
  border-radius: var(--paa-radius-sm);
  font-size: 13px;
  font-family: var(--paa-font);
  color: var(--paa-gray-800);
  outline: none;
  transition: border-color 0.2s;
  background: var(--paa-gray-50);
}
.paa-input:focus { border-color: var(--paa-accent); background: #fff; }
.paa-input-full { grid-column: 1 / -1; }
textarea.paa-input { resize: none; height: 64px; }
.paa-btn-primary {
  width: 100%;
  padding: 10px;
  background: var(--paa-accent);
  color: #fff;
  border: none;
  border-radius: var(--paa-radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--paa-font);
  transition: var(--paa-transition);
  margin-top: 4px;
}
.paa-btn-primary:hover { background: var(--paa-accent-dark); }
.paa-lead-close { float: right; cursor: pointer; color: var(--paa-gray-400); font-size: 16px; background: none; border: none; }

/* CTA panel */
#paa-cta-panel {
  background: var(--paa-accent-soft);
  border-top: 1px solid var(--paa-gray-200);
  padding: 12px 14px;
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}
.paa-cta-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 10px;
  border-radius: var(--paa-radius-sm);
  font-size: 12.5px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  font-family: var(--paa-font);
  border: none;
  transition: var(--paa-transition);
}
.paa-cta-call { background: #10b981; color: #fff; }
.paa-cta-call:hover { background: #059669; }
.paa-cta-wa   { background: #25d366; color: #fff; }
.paa-cta-wa:hover { background: #1ebe58; }
.paa-cta-quote { background: var(--paa-accent); color: #fff; }
.paa-cta-quote:hover { background: var(--paa-accent-dark); }

/* Input area */
#paa-input-area {
  padding: 12px 14px;
  background: var(--paa-white);
  border-top: 1px solid var(--paa-gray-200);
  display: flex;
  gap: 8px;
  align-items: flex-end;
  flex-shrink: 0;
}
#paa-input {
  flex: 1;
  border: 1.5px solid var(--paa-gray-200);
  border-radius: 22px;
  padding: 10px 16px;
  font-size: 14px;
  font-family: var(--paa-font);
  outline: none;
  resize: none;
  max-height: 110px;
  overflow-y: auto;
  line-height: 1.5;
  color: var(--paa-gray-800);
  transition: border-color 0.2s;
}
#paa-input:focus { border-color: var(--paa-accent); }
#paa-input::placeholder { color: var(--paa-gray-400); }
#paa-send {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--paa-accent);
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: var(--paa-transition);
  box-shadow: 0 2px 8px rgba(37,99,235,0.3);
}
#paa-send:hover { background: var(--paa-accent-dark); transform: scale(1.05); }
#paa-send svg { width: 18px; height: 18px; stroke: #fff; fill: none; stroke-width: 2.2; stroke-linecap: round; }

/* Powered by */
#paa-footer {
  text-align: center;
  padding: 6px;
  font-size: 10px;
  color: var(--paa-gray-400);
  font-family: var(--paa-font);
  background: var(--paa-white);
  border-top: 1px solid var(--paa-gray-100);
}
#paa-footer a { color: var(--paa-accent); text-decoration: none; }

/* Animations */
@keyframes paa-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes paa-slide-up {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes paa-typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
  30%            { transform: translateY(-5px); opacity: 1; }
}
@keyframes paa-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* Mobile */
@media (max-width: 480px) {
  #paa-window { width: calc(100vw - 16px); right: 8px; bottom: 90px; height: calc(100vh - 110px); }
  #paa-launcher { right: 16px; bottom: 20px; }
}