/* ======================================================================
   admin-panel/css/styles.css
   ----------------------------------------------------------------------
   Estilos del panel de administrador de LunaChat.
   Diseño limpio de dos columnas: conversaciones a la izquierda,
   chat activo a la derecha.
   ====================================================================== */

:root {
  --admin-primary-color: #111111;
  --admin-bg-color: #f7f7f8;
  --admin-panel-bg: #ffffff;
  --admin-border-color: #e5e5e5;
  --admin-text-color: #1a1a1a;
  --admin-text-muted: #767676;
  --admin-online-color: #2ecc71;
  --admin-offline-color: #bdbdbd;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--admin-text-color);
  background: var(--admin-bg-color);
}

/* --- Pantalla de selección de operador (temporal) --------------------- */

.operator-select-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--admin-bg-color);
}

.operator-select-card {
  background: var(--admin-panel-bg);
  border: 1px solid var(--admin-border-color);
  border-radius: 16px;
  padding: 32px;
  width: 320px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.operator-select-card h1 {
  margin: 0 0 4px;
  font-size: 22px;
}

.operator-select-card p {
  margin: 0 0 20px;
  color: var(--admin-text-muted);
  font-size: 14px;
}

.operator-select-card label {
  display: block;
  text-align: left;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--admin-text-muted);
}

.operator-select-card select {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--admin-border-color);
  margin-bottom: 16px;
  font-size: 14px;
}

.operator-select-card button {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: var(--admin-primary-color);
  color: #ffffff;
  font-size: 14px;
  cursor: pointer;
}

/* --- Estructura principal ---------------------------------------------- */

.admin-main {
  display: flex;
  height: 100vh;
}

.admin-main-hidden {
  display: none;
}

/* --- Barra lateral de conversaciones ------------------------------------ */

.conversations-sidebar {
  width: 300px;
  flex-shrink: 0;
  background: var(--admin-panel-bg);
  border-right: 1px solid var(--admin-border-color);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 18px;
  border-bottom: 1px solid var(--admin-border-color);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-title {
  font-weight: 600;
  font-size: 16px;
}

.sidebar-operator {
  font-size: 12px;
  color: var(--admin-text-muted);
}

.conversations-list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  flex: 1;
}

.conversations-list-empty {
  padding: 24px 18px;
  color: var(--admin-text-muted);
  font-size: 13px;
  text-align: center;
}

.conversation-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--admin-border-color);
  cursor: pointer;
  transition: background 0.1s ease;
}

.conversation-item:hover {
  background: #fafafa;
}

.conversation-item-active {
  background: #f0f0f0;
}

.conversation-status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.conversation-status-online {
  background: var(--admin-online-color);
}

.conversation-status-offline {
  background: var(--admin-offline-color);
}

.conversation-item-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}

.conversation-item-name {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conversation-item-meta {
  font-size: 12px;
  color: var(--admin-text-muted);
  text-transform: capitalize;
}

/* --- Panel de chat activo ------------------------------------------------ */

.chat-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--admin-bg-color);
}

.chat-empty-state {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--admin-text-muted);
  font-size: 14px;
}

.chat-empty-state-hidden {
  display: none;
}

.chat-active {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.chat-active-hidden {
  display: none;
}

.chat-active-header {
  background: var(--admin-panel-bg);
  border-bottom: 1px solid var(--admin-border-color);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-visitor-name {
  font-weight: 600;
  font-size: 15px;
  margin-right: 8px;
}

.chat-visitor-status {
  font-size: 12px;
  color: var(--admin-text-muted);
}

.close-conversation-button {
  border: 1px solid var(--admin-border-color);
  background: #ffffff;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
}

.close-conversation-button:hover {
  background: #f5f5f5;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-message {
  max-width: 60%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.4;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.chat-message-visitor {
  align-self: flex-start;
  background: #ffffff;
  border: 1px solid var(--admin-border-color);
  border-bottom-left-radius: 4px;
}

.chat-message-operator {
  align-self: flex-end;
  background: var(--admin-primary-color);
  color: #ffffff;
  border-bottom-right-radius: 4px;
}

.chat-message-system {
  align-self: center;
  background: #eeeeee;
  color: var(--admin-text-muted);
  font-size: 13px;
}

.chat-form {
  display: flex;
  gap: 10px;
  padding: 16px 20px;
  background: var(--admin-panel-bg);
  border-top: 1px solid var(--admin-border-color);
}

.chat-form input {
  flex: 1;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--admin-border-color);
  font-size: 14px;
}

.chat-form button {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  background: var(--admin-primary-color);
  color: #ffffff;
  font-size: 14px;
  cursor: pointer;
}

/* --- Adaptación a pantallas pequeñas -------------------------------------- */

@media (max-width: 720px) {
  .admin-main {
    flex-direction: column;
  }

  .conversations-sidebar {
    width: 100%;
    height: 40vh;
    border-right: none;
    border-bottom: 1px solid var(--admin-border-color);
  }
}

/* Mensaje de error en la pantalla de contraseña del panel admin */
.login-error {
  color: #d64545;
  font-size: 13px;
  margin: 10px 0 0;
  min-height: 16px;
}

/* Agrupa los botones de la cabecera del chat activo (cerrar/borrar) */
.chat-active-header-actions {
  display: flex;
  gap: 8px;
}

/* Botón de borrar conversación, en rojo para diferenciarlo */
.delete-conversation-button {
  border: 1px solid #d64545;
  background: #ffffff;
  color: #d64545;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
}

.delete-conversation-button:hover {
  background: #fdecec;
}

/* --- Adjuntar imagen (panel admin) -------------------------------------- */

.attach-image-button {
  color: var(--admin-text-color);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--admin-border-color);
  background: #ffffff;
  cursor: pointer;
  flex-shrink: 0;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.attach-image-button:hover {
  background: #f5f5f5;
}

.chat-message-image {
  max-width: 100%;
  border-radius: 10px;
  display: block;
}

.chat-message-has-image {
  padding: 6px;
}