/* Custom Premium Styling for WhatsApp Chatbot */

:root {
  --wa-header-bg: #008069;
  --wa-header-text: #ffffff;
  --wa-chat-bg: #efeae2;
  --wa-bubble-left: #ffffff;
  --wa-bubble-right: #d9fdd3;
  --wa-text-primary: #111b21;
  --wa-text-secondary: #667781;
  --wa-text-time: #667781;
  --wa-btn-primary: #008069;
  --wa-btn-primary-hover: #016b57;
  --wa-border-color: #e9edef;
  --wa-input-bg: #ffffff;
  --wa-verified-color: #00a884;
  --wa-accent: #00a884;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.05);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle, #e2e8f0 0%, #cbd5e1 100%);
  color: var(--wa-text-primary);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

/* Main Container - Mobile Responsive Frame */
.app-container {
  width: 100%;
  max-width: 480px;
  height: 100vh;
  background-color: var(--wa-chat-bg);
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  position: relative;
  overflow: hidden;
}

@media (min-width: 480px) {
  .app-container {
    height: 90vh;
    border-radius: 16px;
    border: 1px solid rgba(0,0,0,0.08);
  }
}

/* Header */
.chat-header {
  background-color: var(--wa-header-bg);
  color: var(--wa-header-text);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
  box-shadow: var(--shadow-sm);
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar-container {
  position: relative;
  width: 40px;
  height: 40px;
}

.chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #ffffff;
  object-fit: contain;
  padding: 2px;
  box-shadow: var(--shadow-sm);
}

.online-indicator {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background-color: var(--wa-verified-color);
  border: 2px solid var(--wa-header-bg);
}

.chat-info {
  display: flex;
  flex-direction: column;
}

.chat-title {
  display: flex;
  align-items: center;
  gap: 4px;
}

.company-name {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.2px;
}

.verified-badge-container {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.verified-badge path {
  fill: var(--wa-header-bg);
}

.chat-status {
  font-size: 12px;
  opacity: 0.85;
}

.header-actions {
  display: flex;
  align-items: center;
}

.header-btn {
  background: none;
  border: none;
  color: var(--wa-header-text);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: background-color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.9;
}

.header-btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
  opacity: 1;
}

/* Chat Window Area */
.chat-window {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background-color: var(--wa-chat-bg);
  /* Subtly textured WhatsApp wallpaper background */
  background-image: radial-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 0);
  background-size: 24px 24px;
  scroll-behavior: smooth;
}

/* Scrollbar Styles */
.chat-window::-webkit-scrollbar {
  width: 6px;
}

.chat-window::-webkit-scrollbar-track {
  background: transparent;
}

.chat-window::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.15);
  border-radius: 4px;
}

/* Date Divider */
.chat-date-divider {
  align-self: center;
  background-color: rgba(255, 255, 255, 0.85);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--wa-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
  margin: 8px 0;
  user-select: none;
}

/* Chat Bubbles */
.chat-bubble {
  max-width: 82%;
  padding: 8px 12px 14px 12px;
  border-radius: 12px;
  position: relative;
  font-size: 14.5px;
  line-height: 1.45;
  box-shadow: var(--shadow-sm);
  word-break: break-word;
  animation: slideInBubble 0.25s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
}

@keyframes slideInBubble {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.bubble-left {
  align-self: flex-start;
  background-color: var(--wa-bubble-left);
  border-top-left-radius: 0;
  color: var(--wa-text-primary);
}

.bubble-right {
  align-self: flex-end;
  background-color: var(--wa-bubble-right);
  border-top-right-radius: 0;
  color: var(--wa-text-primary);
}

/* Message timestamps inside bubbles */
.bubble-time {
  position: absolute;
  bottom: 3px;
  right: 8px;
  font-size: 10px;
  color: var(--wa-text-time);
  user-select: none;
}

/* Typing Indicator */
.typing-bubble {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 16px;
  border-radius: 12px;
  border-top-left-radius: 0;
  background-color: var(--wa-bubble-left);
  align-self: flex-start;
  box-shadow: var(--shadow-sm);
  margin-bottom: 4px;
}

.typing-dot {
  width: 8px;
  height: 8px;
  background-color: var(--wa-text-secondary);
  border-radius: 50%;
  opacity: 0.4;
  animation: typingBounce 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typingBounce {
  0%, 80%, 100% { transform: scale(0.7); opacity: 0.4; }
  40% { transform: scale(1.1); opacity: 0.9; }
}

/* Bottom Controls Section */
.chat-footer {
  background-color: #f0f2f5;
  border-top: 1px solid var(--wa-border-color);
  display: flex;
  flex-direction: column;
  width: 100%;
  padding-bottom: env(safe-area-inset-bottom);
  z-index: 10;
}

/* Navigation Row (Back / Main Menu) */
.nav-bar {
  display: flex;
  border-bottom: 1px solid var(--wa-border-color);
  background-color: #ffffff;
}

.nav-btn {
  flex: 1;
  background: none;
  border: none;
  padding: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--wa-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.nav-btn:not(:last-child) {
  border-right: 1px solid var(--wa-border-color);
}

.nav-btn:hover:not(:disabled) {
  color: var(--wa-accent);
  background-color: #f8f9fa;
}

.nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Panels */
.input-panel {
  padding: 12px;
  background-color: #f0f2f5;
  max-height: 280px;
  overflow-y: auto;
}

/* Grid layout for selection buttons */
.button-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quick-reply-btn {
  background-color: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 20px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--wa-btn-primary);
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.quick-reply-btn:hover {
  background-color: var(--wa-btn-primary);
  color: #ffffff;
  border-color: var(--wa-btn-primary);
  transform: translateY(-1px);
}

.quick-reply-btn:active {
  transform: translateY(0);
}

.quick-reply-btn svg {
  opacity: 0.6;
  transition: color var(--transition-fast);
}

.quick-reply-btn:hover svg {
  opacity: 1;
  color: #ffffff;
}

/* Service Detail Cards & Lists */
.service-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--wa-accent);
}

.service-card-title {
  font-weight: 600;
  font-size: 15px;
  color: var(--wa-text-primary);
  margin-bottom: 4px;
}

.service-card-desc {
  font-size: 13px;
  color: var(--wa-text-secondary);
  line-height: 1.4;
  margin-bottom: 10px;
}

.service-card-btn {
  background-color: var(--wa-btn-primary);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  width: 100%;
  text-align: center;
}

.service-card-btn:hover {
  background-color: var(--wa-btn-primary-hover);
}

/* Step-by-Step Forms */
.form-container {
  background: #ffffff;
  border-radius: 12px;
  padding: 14px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--wa-text-secondary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d1d7db;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background-color: #ffffff;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--wa-accent);
}

.form-textarea {
  resize: none;
  height: 68px;
}

.form-error {
  color: #d32f2f;
  font-size: 11px;
  margin-top: -8px;
  font-weight: 500;
}

.form-actions {
  display: flex;
  gap: 8px;
}

.form-btn-submit {
  flex: 2;
  background-color: var(--wa-btn-primary);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  text-align: center;
}

.form-btn-submit:hover {
  background-color: var(--wa-btn-primary-hover);
}

/* Appointment Summary Card */
.summary-card {
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid var(--wa-border-color);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: 8px;
}

.summary-header {
  background-color: #f8f9fa;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 13px;
  color: var(--wa-text-secondary);
  border-bottom: 1px solid var(--wa-border-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.summary-body {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.summary-row {
  display: flex;
  font-size: 13.5px;
  line-height: 1.4;
}

.summary-label {
  width: 90px;
  color: var(--wa-text-secondary);
  font-weight: 500;
}

.summary-value {
  flex: 1;
  color: var(--wa-text-primary);
  font-weight: 600;
}

.summary-actions {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background-color: #f8f9fa;
  border-top: 1px solid var(--wa-border-color);
}

.btn-whatsapp {
  background-color: #25d366;
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background-color var(--transition-fast);
}

.btn-whatsapp:hover {
  background-color: #20ba5a;
}

.btn-edit {
  background-color: #ffffff;
  color: var(--wa-text-primary);
  border: 1px solid #d1d7db;
  border-radius: 8px;
  padding: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.btn-edit:hover {
  background-color: #f8f9fa;
  border-color: var(--wa-text-secondary);
}

/* FAQ Lang Selector */
.lang-selector-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #ffffff;
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 10px;
  border-left: 4px solid var(--wa-accent);
}

.lang-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--wa-text-secondary);
}

.lang-btn-group {
  display: flex;
  gap: 6px;
}

.lang-btn {
  background: none;
  border: 1px solid #d1d7db;
  border-radius: 16px;
  padding: 6px 12px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--wa-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background-color: var(--wa-accent);
  color: #ffffff;
  border-color: var(--wa-accent);
}

/* FAQ list layout */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  background-color: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.faq-question-btn {
  width: 100%;
  background: none;
  border: none;
  padding: 12px 14px;
  text-align: left;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--wa-text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.faq-question-btn svg {
  transition: transform var(--transition-fast);
  color: var(--wa-text-secondary);
  flex-shrink: 0;
}

.faq-item.open .faq-question-btn svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
  background-color: #f8f9fa;
  border-top: 0 solid var(--wa-border-color);
}

.faq-item.open .faq-answer {
  max-height: 180px; /* enough space for answer */
  border-top-width: 1px;
}

.faq-answer-content {
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--wa-text-secondary);
}

/* Info popup card style (inside bubbles) */
.info-bubble {
  background-color: #fff;
  border-radius: 8px;
  padding: 10px;
  font-size: 13px;
  border-left: 3px solid var(--wa-accent);
  margin-top: 4px;
}

.info-bubble-title {
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--wa-text-primary);
}