/* ===== SIDEBAR (HISTÓRICO) ===== */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 4000;
}
.sidebar-overlay.active {
  display: block;
}

.history-sidebar {
  position: fixed;
  top: 0;
  left: -320px;
  width: 320px;
  height: 100%;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-primary);
  z-index: 5000;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.history-sidebar.active {
  transform: translateX(320px);
}

.sidebar-header {
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-primary);
}

.sidebar-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.sidebar-close:hover {
  color: var(--accent-copper-light);
}

.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-primary);
}

.sidebar-tab {
  flex: 1;
  padding: 12px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-bottom: 2px solid transparent;
}

.sidebar-tab.active {
  color: var(--accent-copper-light);
  border-bottom-color: var(--accent-copper-light);
  background: rgba(194, 65, 12, 0.05);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
}

.sidebar-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-tertiary);
  gap: 10px;
}
.sidebar-empty i { font-size: 32px; opacity: 0.5; }

.history-item {
  padding: 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  margin-bottom: 8px;
  border: 1px solid transparent;
}
.history-item:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-primary);
}
.history-item-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.history-item-meta {
  font-size: 11px;
  color: var(--text-tertiary);
  display: flex;
  justify-content: space-between;
}

/* ===== VOICE INPUT ===== */
.btn-voice {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  font-size: 18px;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.btn-voice:hover {
  color: var(--accent-blue);
  background: rgba(2, 132, 199, 0.1);
}
.btn-voice.recording {
  color: #EF4444;
  animation: pulse-voice 1.5s infinite;
}
@keyframes pulse-voice {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* ===== PWA BANNER ===== */
.pwa-install-banner {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--accent-copper);
  padding: 12px 20px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 15px;
  box-shadow: var(--shadow-lg);
  z-index: 6000;
  animation: slide-up 0.5s ease-out;
}
@keyframes slide-up {
  from { transform: translate(-50%, 100px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}
.pwa-banner-content {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
}
.pwa-banner-content i { color: var(--accent-copper-light); font-size: 18px; }
.pwa-install-btn {
  background: var(--accent-copper);
  color: #fff;
  border: none;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.pwa-dismiss-btn {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  font-size: 16px;
  cursor: pointer;
}