body {
  font-size: .875rem;
}

.feather {
  width: 16px;
  height: 16px;
  vertical-align: text-bottom;
}

/* * Navbar
 */

.navbar-brand {
  padding-top: .75rem;
  padding-bottom: .75rem;
  font-size: 1rem;
  background-color: rgba(0, 0, 0, .25);
  box-shadow: inset -1px 0 0 rgba(0, 0, 0, .25);
}

.navbar .navbar-toggler {
  top: .25rem;
  right: 1rem;
}

.navbar .form-control {
  padding: .75rem 1rem;
  border-width: 0;
  border-radius: 0;
}

.form-control-dark {
  color: #fff;
  background-color: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .1);
}

.form-control-dark:focus {
  border-color: transparent;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, .25);
}

#chart-area {
    width: 100%;
    height: 0;
    padding-bottom: 100%; /* Força proporção 1:1 para pizza/rosca */
}

.chart-canvas {
    width: 100% !important;
    height: 100% !important;
    max-height: none !important;
}

/* dashboard.css: centralização e espaçamento */
main { text-align:center; }
.upload-area { display:inline-block; }
#chart-area, .table-responsive { margin-left:auto; margin-right:auto; }