/* ══════════════════════════════════════════════════════════
   SALVAU — Chat / Mensajes Styles  v4
   ══════════════════════════════════════════════════════════ */

.sv-chat-page {
  display: flex;
  height: 100vh;
  overflow: hidden;
}
.sv-chat-page .sv-chat-shell {
  flex: 1;
  margin-left: var(--sv-nav-width);
}

.sv-chat-shell {
  display: flex; height: 100vh; overflow: hidden;
  background: var(--sv-bg);
}

/* Panel lista de conversaciones */
.sv-chat-list-panel {
  width: 300px; flex-shrink: 0;
  border-right: 1px solid var(--sv-border);
  display: flex; flex-direction: column;
  background: var(--sv-surface);
  overflow: hidden;
  box-shadow: var(--sv-shadow-sm);
}
.sv-chat-list-header {
  padding: 1.35rem 1rem;
  border-bottom: 1px solid var(--sv-border);
  font-weight: 900; font-size: 1.05rem;
  color: var(--sv-text);
}
.sv-chat-list { overflow-y: auto; flex: 1; }

.sv-chat-item {
  display: flex; align-items: center; gap: 0.85rem;
  padding: 0.9rem 1rem;
  cursor: pointer;
  border-left: 3px solid transparent;
  border-radius: var(--sv-r);
  margin: 0.35rem 0.5rem;
  transition: all var(--sv-transition);
  background: transparent;
}
.sv-chat-item:hover {
  background: var(--sv-primary-soft);
  border-left-color: rgba(27, 77, 92, 0.35);
  transform: translateX(2px);
}
.sv-chat-item.active {
  background: var(--sv-primary-soft);
  border-left-color: var(--sv-primary);
  box-shadow: var(--sv-shadow-glow-sm);
}
.sv-chat-item .sv-user-avatar {
  width: 40px; height: 40px; font-size: .85rem;
  background: var(--sv-gradient-brand);
}
.sv-chat-info { flex: 1; min-width: 0; }
.sv-chat-name    { font-weight: 800; font-size: .88rem; color: var(--sv-text); }
.sv-chat-preview {
  font-size: .75rem; color: var(--sv-text-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* Panel conversación */
.sv-chat-conv {
  flex: 1; display: flex; flex-direction: column;
  overflow: hidden;
}
.sv-chat-conv-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--sv-border);
  background: var(--sv-surface);
  display: flex; align-items: center; gap: .75rem;
}
.sv-chat-messages {
  flex: 1; overflow-y: auto;
  padding: 1.25rem 1.5rem;
  display: flex; flex-direction: column; gap: .6rem;
}
.sv-chat-input-bar {
  padding: .85rem 1.25rem;
  background: var(--sv-surface);
  border-top: 1px solid var(--sv-border);
  display: flex; gap: .75rem; align-items: center;
}
.sv-chat-input-bar input { flex: 1; }

/* Burbujas de mensaje */
.sv-msg {
  display: flex;
  flex-direction: column;
  max-width: 70%;
  animation: msgEnter 200ms ease-out;
}
.sv-msg-mine  { align-self: flex-end;  align-items: flex-end; }
.sv-msg-other { align-self: flex-start; align-items: flex-start; }

.sv-msg-bubble {
  padding: 0.7rem 1.2rem;
  border-radius: 1rem;
  font-size: 0.9rem;
  line-height: 1.45;
  word-wrap: break-word;
}
.sv-msg-mine .sv-msg-bubble {
  background: var(--sv-gradient-brand);
  color: #fff;
  border-bottom-right-radius: 0.25rem;
  box-shadow: 0 4px 12px var(--sv-primary-glow);
}
.sv-msg-other .sv-msg-bubble {
  background: var(--sv-surface-2);
  border: 1px solid var(--sv-border);
  color: var(--sv-text);
  border-bottom-left-radius: 0.25rem;
  box-shadow: var(--sv-shadow-sm);
}
.sv-msg-time {
  font-size: 0.68rem;
  color: var(--sv-text-faint);
  margin-top: 0.3rem;
  font-weight: 500;
}

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

/* Estado vacío */
.sv-no-chat {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: var(--sv-text-muted);
}

/* Accesibilidad */
*:focus-visible {
  outline: 2px solid var(--sv-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .sv-chat-item,
  .sv-msg { animation: none !important; transition: none !important; }
  .sv-chat-item:hover,
  .sv-chat-item.active { transform: none !important; }
}