/* ============================================
   YOKUX Monitor — WhatsApp-like UI
   ============================================ */

:root {
  --wa-green: #00a884;
  --wa-green-dark: #008f72;
  --wa-dark-bg: #111b21;
  --wa-dark-panel: #202c33;
  --wa-dark-hover: #2a3942;
  --wa-dark-border: #2f3b44;
  --wa-dark-input: #2a3942;
  --wa-bubble-out: #005c4b;
  --wa-bubble-in: #202c33;
  --wa-text: #e9edef;
  --wa-text-secondary: #8696a0;
  --wa-chat-bg: #0b141a;
  --wa-header-bg: #202c33;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--wa-dark-bg);
  color: var(--wa-text);
  height: 100vh;
  overflow: hidden;
}

.app {
  display: flex;
  height: 100vh;
}

/* ---- SIDEBAR ---- */
.sidebar {
  width: 380px;
  min-width: 380px;
  background: var(--wa-dark-bg);
  border-right: 1px solid var(--wa-dark-border);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--wa-header-bg);
  min-height: 60px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--wa-green);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
}

.brand-text {
  font-weight: 700;
  font-size: 1rem;
}

.icon-btn {
  background: none;
  border: none;
  color: var(--wa-text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: background 0.2s;
}
.icon-btn:hover { background: var(--wa-dark-hover); }

.search-box {
  padding: 8px 12px;
  background: var(--wa-dark-bg);
}

.search-box input {
  width: 100%;
  padding: 8px 14px;
  border: none;
  border-radius: 8px;
  background: var(--wa-dark-input);
  color: var(--wa-text);
  font-size: 0.85rem;
  outline: none;
}
.search-box input::placeholder { color: var(--wa-text-secondary); }

.conversations-list {
  flex: 1;
  overflow-y: auto;
}

.conv-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--wa-dark-border);
  transition: background 0.15s;
}
.conv-item:hover { background: var(--wa-dark-hover); }
.conv-item.active { background: var(--wa-dark-hover); }

.avatar {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 50%;
  background: var(--wa-green);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.conv-info {
  flex: 1;
  min-width: 0;
}

.conv-info-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}

.conv-name {
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conv-time {
  font-size: 0.7rem;
  color: var(--wa-text-secondary);
  white-space: nowrap;
}

.conv-preview {
  font-size: 0.8rem;
  color: var(--wa-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conv-badge {
  background: var(--wa-green);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

.conv-step {
  font-size: 0.65rem;
  color: var(--wa-green);
  margin-top: 2px;
}

.sidebar-footer {
  padding: 10px 16px;
  background: var(--wa-header-bg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--wa-text-secondary);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.status-dot.online { background: var(--wa-green); }
.status-dot.offline { background: #e74c3c; }

/* ---- CHAT PANEL ---- */
.chat-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--wa-chat-bg);
  position: relative;
}

.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--wa-text-secondary);
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h2 {
  font-size: 1.4rem;
  color: var(--wa-text);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 0.9rem;
  max-width: 400px;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--wa-header-bg);
  min-height: 60px;
  border-bottom: 1px solid var(--wa-dark-border);
}

.chat-contact {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-contact-info strong {
  display: block;
  font-size: 0.95rem;
}

.chat-contact-info small {
  color: var(--wa-text-secondary);
  font-size: 0.75rem;
}

.btn-takeover {
  background: var(--wa-green);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-takeover:hover { background: var(--wa-green-dark); }

/* ---- MESSAGES ---- */
.messages-area {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.messages-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 16px 60px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.msg {
  max-width: 65%;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  line-height: 1.5;
  position: relative;
  word-wrap: break-word;
}

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

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

.msg-system {
  background: rgba(0, 168, 132, 0.15);
  align-self: center;
  text-align: center;
  font-size: 0.75rem;
  color: var(--wa-green);
  padding: 4px 12px;
  border-radius: 6px;
  max-width: 80%;
}

.msg-time {
  font-size: 0.65rem;
  color: var(--wa-text-secondary);
  text-align: right;
  margin-top: 4px;
}

.msg-sender {
  font-size: 0.7rem;
  color: var(--wa-green);
  font-weight: 600;
  margin-bottom: 2px;
}

.msg-date-divider {
  align-self: center;
  background: var(--wa-dark-panel);
  color: var(--wa-text-secondary);
  font-size: 0.7rem;
  padding: 4px 12px;
  border-radius: 6px;
  margin: 8px 0;
}

/* ---- AGENT INPUT ---- */
.agent-input {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--wa-header-bg);
  border-top: 1px solid var(--wa-dark-border);
}

.agent-input input {
  flex: 1;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  background: var(--wa-dark-input);
  color: var(--wa-text);
  font-size: 0.9rem;
  outline: none;
}
.agent-input input::placeholder { color: var(--wa-text-secondary); }

.send-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--wa-green);
  border: none;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.send-btn:hover { background: var(--wa-green-dark); }

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--wa-dark-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--wa-text-secondary); }

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .sidebar { width: 100%; min-width: 100%; }
  .chat-panel { display: none; }
  .messages-scroll { padding: 16px; }
}