/* Global Variables for Minimalist & Modern Theme */
:root {
  --bg-app: #f8fafc;
  --bg-sidebar: #ffffff;
  --bg-chat-panel: #f1f5f9;
  --text-main: #0f172a;
  --text-sub: #64748b;
  --border-color: #e2e8f0;
  
  --color-primary: #059669; /* Emerald Green */
  --color-primary-light: #ecfdf5;
  --color-accent: #e11d48; /* Rose Red */
  --color-accent-light: #fff1f2;
  
  --bubble-client: #ffffff;
  --bubble-bot: #d1fae5;
  
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Core Layout */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-app);
  color: var(--text-main);
  overflow: hidden;
  height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  display: grid;
  grid-template-columns: 350px 1fr;
  height: 100vh;
  width: 100vw;
}

/* 1. Sidebar Styling */
.sidebar {
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.sidebar-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-header h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.status-indicator {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-indicator::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-primary);
}

.chat-list-container {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
}

.section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-sub);
  padding: 0 24px 12px 24px;
}

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

/* Chat Card Styling */
.chat-card {
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  transition: var(--transition-smooth);
  position: relative;
}

.chat-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: transparent;
  transition: var(--transition-smooth);
}

.chat-card:hover {
  background-color: #f8fafc;
}

.chat-card.active {
  background-color: #f1f5f9;
}

.chat-card.active::after {
  background-color: var(--color-primary);
}

.chat-card.needs-human::after {
  background-color: var(--color-accent);
}

.chat-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.client-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}

.time {
  font-size: 11px;
  color: var(--text-sub);
}

.chat-card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.last-message {
  font-size: 13px;
  color: var(--text-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  white-space: nowrap;
}

.tag-human {
  background-color: var(--color-accent-light);
  color: var(--color-accent);
}

.tag-bot {
  background-color: var(--bg-app);
  color: var(--text-sub);
  border: 1px solid var(--border-color);
}

/* Loading state */
.loading, .no-chats {
  padding: 24px;
  text-align: center;
  color: var(--text-sub);
  font-size: 14px;
}

/* 2. Main Chat Panel Styling */
.chat-panel {
  background-color: var(--bg-chat-panel);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  position: relative;
}

/* Empty State */
.empty-state {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  width: 100%;
  text-align: center;
}

.empty-state-content {
  max-width: 400px;
  padding: 32px;
}

.empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  animation: float 4s ease-in-out infinite;
}

.empty-state h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.5;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Active Chat Interface */
.active-chat {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-height: 100%;
  overflow: hidden;
}

/* Header */
.chat-header {
  background-color: #ffffff;
  padding: 20px 32px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
}

.client-info h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 2px;
}

.client-info p {
  font-size: 13px;
  color: var(--text-sub);
}

.chat-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.handoff-tag {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
}

.handoff-tag.active {
  background-color: var(--color-accent-light);
  color: var(--color-accent);
}

.handoff-tag.inactive {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.btn-resolve {
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  font-family: var(--font-family);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-resolve:hover {
  background-color: #047857;
  transform: translateY(-1px);
}

/* Message Bubbles Container */
.message-container {
  flex: 1;
  overflow-y: auto;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 0; /* Permite que o container de mensagens encolha e ative a barra de rolagem */
}

/* Messages Bubbles */
.message-wrapper {
  display: flex;
  flex-direction: column;
  max-width: 70%;
}

.message-wrapper.left {
  align-self: flex-start;
  align-items: flex-start;
}

.message-wrapper.right {
  align-self: flex-end;
  align-items: flex-end;
}

.message-bubble {
  padding: 12px 18px;
  border-radius: 16px;
  font-size: 14.5px;
  line-height: 1.5;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.message-wrapper.left .message-bubble {
  background-color: var(--bubble-client);
  color: var(--text-main);
  border-top-left-radius: 4px;
  border: 1px solid var(--border-color);
}

.message-wrapper.right .message-bubble {
  background-color: var(--bubble-bot);
  color: var(--text-main);
  border-top-right-radius: 4px;
}

.message-time {
  font-size: 10px;
  color: var(--text-sub);
  margin-top: 4px;
  padding: 0 4px;
}

/* Footer Input Area */
.chat-footer {
  background-color: #ffffff;
  padding: 20px 32px;
  border-top: 1px solid var(--border-color);
}

.message-form {
  display: flex;
  gap: 16px;
}

.message-form input {
  flex: 1;
  background-color: var(--bg-app);
  border: 1px solid var(--border-color);
  font-family: var(--font-family);
  font-size: 14px;
  padding: 14px 20px;
  border-radius: 30px;
  outline: none;
  transition: var(--transition-smooth);
}

.message-form input:focus {
  border-color: var(--color-primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

.btn-send {
  background-color: var(--text-main);
  color: #ffffff;
  border: none;
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 600;
  padding: 0 28px;
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-send:hover {
  background-color: #1e293b;
  transform: translateY(-1px);
}