/* ══════════════════════════════════════════════════
   chat.css — Panel flotante de chats EcoLinces
══════════════════════════════════════════════════ */

/* ── Botón flotante en el nav ── */
.nav-chat-btn {
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dark);
  transition: background 0.18s, transform 0.15s;
  flex-shrink: 0;
  margin-right: 4px;
}

.nav-chat-btn:hover { background: rgba(0,0,0,0.07); transform: scale(1.08); }

.nav-chat-badge {
  position: absolute;
  top: 3px;
  right: 3px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  background: #c62828;
  color: white;
  font-size: 0.6rem;
  font-weight: 700;
  border-radius: 999px;
  display: none;
  align-items: center;
  justify-content: center;
  line-height: 1;
  border: 1.5px solid white;
}

.nav-chat-badge.visible { display: flex; }

/* ══════════════════════════════════════════════════
   PANEL PRINCIPAL
══════════════════════════════════════════════════ */
.chat-panel {
  position: fixed;
  bottom: 0;
  right: 24px;
  width: 360px;
  height: 540px;
  background: white;
  border-radius: 18px 18px 0 0;
  box-shadow: 0 -4px 40px rgba(0,0,0,0.16), 0 0 0 1px rgba(0,0,0,0.06);
  z-index: 500;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(calc(100% + 20px));
  opacity: 0;
  pointer-events: none;
  transition: transform 0.32s cubic-bezier(.4,0,.2,1), opacity 0.25s ease;
}

.chat-panel.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

/* ── Vista: lista de conversaciones ── */
.chat-view { display: none; flex-direction: column; height: 100%; }
.chat-view.active { display: flex; }

/* ══════ VISTA: LISTA ══════ */

/* Header de la lista */
.chat-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px 12px;
  border-bottom: 1px solid #f0f0f0;
  flex-shrink: 0;
}

.chat-list-title {
  font-family: 'Korataki', sans-serif;
  font-size: 1.15rem;
  color: var(--text-dark);
}

.chat-header-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.chat-icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  color: #888;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}

.chat-icon-btn:hover { background: #f0f0f0; color: var(--text-dark); }

/* Buscador de conversaciones */
.chat-search-wrap {
  padding: 10px 14px;
  border-bottom: 1px solid #f5f5f5;
  flex-shrink: 0;
}

.chat-search-input {
  width: 100%;
  background: #f5f5f3;
  border: none;
  border-radius: 8px;
  padding: 8px 12px;
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.85rem;
  outline: none;
  color: var(--text-dark);
  transition: background 0.15s;
}

.chat-search-input:focus { background: #eeeee9; }
.chat-search-input::placeholder { color: #bbb; }

/* Lista de conversaciones */
.chat-conv-list {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.chat-conv-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px 16px;
  cursor: pointer;
  transition: background 0.15s;
  position: relative;
}

.chat-conv-item:hover { background: #f9f9f7; }
.chat-conv-item.unread { background: #f0f7f0; }

.chat-conv-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: #e0e0e0;
}

.chat-conv-avatar.group {
  border-radius: 12px;
  background: var(--green-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

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

.chat-conv-name {
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-conv-preview {
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.78rem;
  color: #999;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.chat-conv-item.unread .chat-conv-name { color: var(--green-btn); }
.chat-conv-item.unread .chat-conv-preview { color: #555; font-weight: 600; }

.chat-conv-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}

.chat-conv-time {
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.68rem;
  color: #bbb;
}

.chat-unread-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-btn);
  display: none;
}

.chat-conv-item.unread .chat-unread-dot { display: block; }

.chat-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 10px;
  color: #ccc;
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.88rem;
  text-align: center;
  padding: 24px;
}

.chat-empty-icon { font-size: 2.5rem; opacity: 0.4; }

/* ══════ VISTA: CONVERSACIÓN ══════ */

.chat-conv-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid #f0f0f0;
  flex-shrink: 0;
  background: white;
}

.chat-back-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  color: #888;
  padding: 4px 6px;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.chat-back-btn:hover { background: #f0f0f0; color: var(--text-dark); }

.chat-conv-header-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  background: #e0e0e0;
  flex-shrink: 0;
}

.chat-conv-header-avatar.group { border-radius: 9px; }

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

.chat-conv-header-name {
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-conv-header-sub {
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.7rem;
  color: #aaa;
}

/* Mensajes */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 14px 14px 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  scroll-behavior: smooth;
}

/* Separador de fecha */
.chat-date-sep {
  text-align: center;
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.68rem;
  color: #bbb;
  font-weight: 600;
  margin: 8px 0 4px;
  position: relative;
}

.chat-date-sep::before, .chat-date-sep::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 28%;
  height: 1px;
  background: #eee;
}

.chat-date-sep::before { left: 0; }
.chat-date-sep::after  { right: 0; }

/* Burbuja de mensaje */
.chat-msg {
  display: flex;
  gap: 7px;
  align-items: flex-end;
  max-width: 88%;
}

.chat-msg.mine {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-msg.theirs { align-self: flex-start; }

.chat-msg-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  background: #ddd;
  flex-shrink: 0;
  margin-bottom: 2px;
}

.chat-msg.mine .chat-msg-avatar { display: none; }

.chat-msg-bubble {
  padding: 9px 13px;
  border-radius: 18px;
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.88rem;
  line-height: 1.45;
  word-break: break-word;
  position: relative;
}

.chat-msg.theirs .chat-msg-bubble {
  background: #f0f0ee;
  color: var(--text-dark);
  border-bottom-left-radius: 5px;
}

.chat-msg.mine .chat-msg-bubble {
  background: var(--passport-accent, var(--green-btn));
  color: white;
  border-bottom-right-radius: 5px;
}

/* Imagen en mensaje */
.chat-msg-image {
  max-width: 200px;
  max-height: 180px;
  border-radius: 12px;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
}

/* Sender name (en grupos) */
.chat-msg-sender {
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--green-btn);
  margin-bottom: 3px;
  padding: 0 2px;
}

.chat-msg.mine .chat-msg-sender { display: none; }

/* Hora del mensaje */
.chat-msg-time {
  font-size: 0.62rem;
  opacity: 0.55;
  margin-top: 3px;
  padding: 0 2px;
  text-align: right;
}

/* Mensaje eliminado */
.chat-msg-deleted {
  font-style: italic;
  opacity: 0.45;
  font-size: 0.82rem;
}

/* Menú contextual al long-press / hover */
.chat-msg-actions {
  position: absolute;
  top: -28px;
  right: 0;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.14);
  display: none;
  gap: 2px;
  padding: 4px;
  z-index: 10;
}

.chat-msg:hover .chat-msg-actions { display: flex; }

.chat-msg-action-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 7px;
  border-radius: 5px;
  font-size: 0.75rem;
  color: #666;
  transition: background 0.15s;
}

.chat-msg-action-btn:hover { background: #f0f0f0; }
.chat-msg-action-btn.danger:hover { background: #fce4e4; color: #c62828; }

/* Indicador "escribiendo..." */
.chat-typing {
  display: none;
  align-self: flex-start;
  padding: 8px 13px;
  background: #f0f0ee;
  border-radius: 18px;
  border-bottom-left-radius: 5px;
  gap: 4px;
  align-items: center;
}

.chat-typing.visible { display: flex; }

.typing-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #aaa;
  animation: typingBounce 1.2s infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%           { transform: translateY(-5px); }
}

/* Input de nuevo mensaje */
.chat-input-wrap {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 14px 14px;
  border-top: 1px solid #f0f0f0;
  flex-shrink: 0;
  background: white;
}

.chat-attach-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 7px;
  border-radius: 8px;
  color: #aaa;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  transition: color 0.15s, background 0.15s;
  flex-shrink: 0;
  align-self: flex-end;
}

.chat-attach-btn:hover { color: var(--green-btn); background: #f0f7f0; }

.chat-input {
  flex: 1;
  border: 1.5px solid #e8e8e8;
  border-radius: 12px;
  padding: 9px 13px;
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.9rem;
  outline: none;
  resize: none;
  min-height: 38px;
  max-height: 110px;
  overflow-y: auto;
  line-height: 1.45;
  color: var(--text-dark);
  transition: border-color 0.18s;
  background: white;
}

.chat-input:focus { border-color: var(--passport-accent, var(--green-btn)); }
.chat-input::placeholder { color: #ccc; }

.chat-send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--passport-accent, var(--green-btn));
  color: white;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.18s, transform 0.15s;
  flex-shrink: 0;
  align-self: flex-end;
}

.chat-send-btn:hover  { opacity: 0.85; transform: scale(1.08); }
.chat-send-btn:disabled { opacity: 0.35; cursor: default; transform: none; }

/* Preview de imagen antes de enviar */
.chat-img-preview-wrap {
  padding: 8px 14px 0;
  flex-shrink: 0;
  display: none;
}

.chat-img-preview-wrap.visible { display: block; }

.chat-img-preview {
  position: relative;
  display: inline-block;
}

.chat-img-preview img {
  width: 64px;
  height: 64px;
  border-radius: 8px;
  object-fit: cover;
  display: block;
  border: 1.5px solid #e0e0e0;
}

.chat-img-preview-remove {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #c62828;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ══════ MODAL: NUEVO CHAT ══════ */
.chat-new-modal {
  position: absolute;
  inset: 0;
  background: white;
  border-radius: 18px 18px 0 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.28s cubic-bezier(.4,0,.2,1);
}

.chat-new-modal.open { transform: translateY(0); }

.chat-new-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px 12px;
  border-bottom: 1px solid #f0f0f0;
  flex-shrink: 0;
}

.chat-new-title {
  font-family: 'Korataki', sans-serif;
  font-size: 1rem;
  color: var(--text-dark);
  flex: 1;
}

.chat-type-tabs {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  flex-shrink: 0;
}

.chat-type-tab {
  flex: 1;
  padding: 7px;
  border-radius: 8px;
  border: 1.5px solid #e0e0e0;
  background: white;
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  color: #888;
  transition: all 0.18s;
}

.chat-type-tab.active {
  background: var(--passport-accent, var(--green-btn));
  border-color: transparent;
  color: white;
}

.chat-new-search {
  margin: 0 14px 10px;
  padding: 8px 12px;
  background: #f5f5f3;
  border: none;
  border-radius: 8px;
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.85rem;
  outline: none;
  color: var(--text-dark);
}

.chat-new-search::placeholder { color: #bbb; }

.chat-new-group-name {
  margin: 0 14px 8px;
  padding: 8px 12px;
  border: 1.5px solid #e0e0e0;
  border-radius: 8px;
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.85rem;
  outline: none;
  color: var(--text-dark);
  display: none;
}

.chat-new-group-name.visible { display: block; }

/* Lista de amigos para seleccionar */
.chat-friend-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 8px 8px;
}

.chat-friend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s;
}

.chat-friend-item:hover { background: #f5f5f3; }
.chat-friend-item.selected { background: #f0f7f0; }

.chat-friend-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  background: #e0e0e0;
  flex-shrink: 0;
}

.chat-friend-name {
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
  flex: 1;
}

.chat-friend-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid #ddd;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: transparent;
  transition: all 0.15s;
  flex-shrink: 0;
}

.chat-friend-item.selected .chat-friend-check {
  background: var(--passport-accent, var(--green-btn));
  border-color: transparent;
  color: white;
}

.chat-new-create-btn {
  margin: 8px 14px 14px;
  padding: 11px;
  border-radius: 10px;
  border: none;
  background: var(--passport-accent, var(--green-btn));
  color: white;
  font-family: 'Helvetica', Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.18s;
  flex-shrink: 0;
}

.chat-new-create-btn:hover    { opacity: 0.85; }
.chat-new-create-btn:disabled { opacity: 0.38; cursor: default; }

/* ══════ LIGHTBOX DE IMÁGENES ══════ */
.chat-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.chat-lightbox.open { opacity: 1; pointer-events: all; }

.chat-lightbox img {
  max-width: 90vw;
  max-height: 88vh;
  border-radius: 10px;
  object-fit: contain;
  box-shadow: 0 8px 48px rgba(0,0,0,0.5);
}

.chat-lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255,255,255,0.15);
  border: none;
  color: white;
  font-size: 1.4rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

.chat-lightbox-close:hover { background: rgba(255,255,255,0.28); }

/* ── Responsive ── */
@media (max-width: 480px) {
  .chat-panel {
    right: 0;
    left: 0;
    width: 100%;
    border-radius: 20px 20px 0 0;
    height: 80vh;
  }
}