/* ========================================================
   STUDY PACK AI CHATBOT - COMPACT & MOBILE-FRIENDLY CSS
   ======================================================== */

.sp-chat-widget {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 99999;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Compact Floating Trigger Button */
.sp-chat-trigger {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1565C0, #0B132B);
  color: #ffffff;
  border: none;
  box-shadow: 0 6px 18px rgba(21, 101, 192, 0.35);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  outline: none;
}

.sp-chat-trigger:hover {
  transform: scale(1.06) translateY(-2px);
  box-shadow: 0 10px 24px rgba(21, 101, 192, 0.45);
}

.sp-chat-trigger svg {
  width: 24px;
  height: 24px;
}

.sp-chat-badge {
  position: absolute;
  top: -1px;
  right: -1px;
  width: 12px;
  height: 12px;
  background: #10B981;
  border: 2px solid #ffffff;
  border-radius: 50%;
  animation: spPulse 2s infinite;
}

@keyframes spPulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
  70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Compact & Device Friendly Popup Window */
.sp-chat-window {
  position: absolute;
  bottom: 64px;
  right: 0;
  width: 330px;
  height: 470px;
  max-width: calc(100vw - 28px);
  max-height: calc(100vh - 90px);
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.16), 0 4px 10px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: scale(0.92) translateY(14px);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: bottom right;
}

.sp-chat-window.open {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

/* Header with Logo */
.sp-chat-header {
  background: linear-gradient(135deg, #0B132B, #1565C0);
  color: #ffffff;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sp-chat-header-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sp-chat-avatar-logo {
  width: 32px;
  height: 32px;
  background: #ffffff;
  border-radius: 50%;
  padding: 3px;
  object-fit: contain;
  box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}

.sp-chat-title h4 {
  margin: 0;
  font-size: 13.5px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
}

.sp-chat-title span {
  font-size: 10.5px;
  color: #A5D6A7;
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 1px;
}

.sp-chat-title span::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #10B981;
  border-radius: 50%;
  display: inline-block;
}

.sp-chat-close-btn {
  background: rgba(255, 255, 255, 0.12);
  border: none;
  color: #ffffff;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.sp-chat-close-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Messages Area */
.sp-chat-body {
  flex: 1;
  padding: 12px 14px;
  overflow-y: auto;
  background: #F8FAFC;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}

.sp-msg {
  display: flex;
  flex-direction: column;
  max-width: 86%;
  font-size: 12.5px;
  line-height: 1.4;
  animation: spFadeUp 0.25s ease-out;
}

@keyframes spFadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.sp-msg.bot {
  align-self: flex-start;
}

.sp-msg.user {
  align-self: flex-end;
}

.sp-bubble {
  padding: 8px 12px;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  word-break: break-word;
}

.sp-msg.bot .sp-bubble {
  background: #ffffff;
  color: #1E293B;
  border-bottom-left-radius: 2px;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.sp-msg.user .sp-bubble {
  background: linear-gradient(135deg, #1565C0, #1E88E5);
  color: #ffffff;
  border-bottom-right-radius: 2px;
}

.sp-msg-time {
  font-size: 9.5px;
  color: #94A3B8;
  margin-top: 3px;
  align-self: flex-start;
}

.sp-msg.user .sp-msg-time {
  align-self: flex-end;
}

/* Product Cards in Chat */
.sp-chat-product-card {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  padding: 6px 8px;
  border-radius: 8px;
  margin-top: 6px;
  border: 1px solid #E2E8F0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}

.sp-chat-product-card img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 4px;
  background: #F1F5F9;
  padding: 2px;
}

.sp-chat-product-card .info {
  flex: 1;
  min-width: 0;
}

.sp-chat-product-card .title {
  font-size: 11px;
  font-weight: 700;
  color: #0F172A;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sp-chat-product-card .price {
  font-size: 10.5px;
  font-weight: 600;
  color: #1565C0;
}

.sp-chat-product-card .btn-add {
  padding: 4px 8px;
  font-size: 10.5px;
  font-weight: 700;
  background: #1565C0;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.2s;
}

.sp-chat-product-card .btn-add:hover {
  background: #0D47A1;
}

/* Chips */
.sp-chat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 4px;
}

.sp-chip {
  padding: 5px 10px;
  background: #EEF2F6;
  border: 1px solid #CBD5E1;
  color: #1E293B;
  border-radius: 14px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  outline: none;
}

.sp-chip:hover {
  background: #1565C0;
  color: #ffffff;
  border-color: #1565C0;
}

/* Footer / Input Bar */
.sp-chat-footer {
  padding: 10px 12px;
  background: #ffffff;
  border-top: 1px solid #E2E8F0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.sp-chat-input {
  flex: 1;
  padding: 8px 12px;
  border-radius: 20px;
  border: 1px solid #CBD5E1;
  font-size: 12px;
  outline: none;
  background: #F8FAFC;
}

.sp-chat-input:focus {
  border-color: #1565C0;
  background: #ffffff;
}

.sp-chat-send-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #1565C0;
  color: #ffffff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sp-chat-send-btn svg {
  width: 15px;
  height: 15px;
}

/* Mobile Friendly overrides */
@media (max-width: 480px) {
  .sp-chat-widget {
    bottom: 15px;
    right: 15px;
  }
  .sp-chat-window {
    width: calc(100vw - 30px);
    height: 440px;
    bottom: 60px;
    right: 0;
  }
}