body {
  font-family: "Inter", sans-serif;
  background-color: #0f172a;
  color: #f8fafc;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.card-custom {
  background-color: rgba(30, 41, 59, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
}
.form-control,
.form-select {
  background-color: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
}
.form-control:focus,
.form-select:focus {
  background-color: rgba(15, 23, 42, 1);
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
  box-shadow: none !important;
  outline: none !important;
}
.form-control::placeholder {
  color: #64748b;
}
/* Forzar modo oscuro en el calendario nativo del navegador */
input[type="date"] {
  color-scheme: dark;
}
input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(1) brightness(0.8);
  cursor: pointer;
}
.form-check-input {
  background-color: rgba(15, 23, 42, 0.9);
  border-color: rgba(255, 255, 255, 0.2);
}
.form-check-input:checked {
  background-color: #6366f1;
  border-color: #6366f1;
  box-shadow: none !important;
}
.form-check-input:focus {
  box-shadow: none !important;
}
.btn-primary-custom {
  background: linear-gradient(to right, #4f46e5, #7c3aed);
  border: none;
  border-radius: 0.75rem;
  padding: 0.8rem 1.5rem;
  font-weight: 600;
  transition: all 0.2s ease-in-out;
}
.btn-primary-custom:hover {
  background: linear-gradient(to right, #4338ca, #6d28d9);
  transform: translateY(-1px);
}
.cursor-pointer {
  cursor: pointer;
}
.bi-gear-fill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 5px;
  animation: spin-gear 3500ms infinite linear;
  transform-origin: center center;
  vertical-align: middle;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
}
@keyframes spin-gear {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}