body {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  font-family: 'Poppins', sans-serif;
  color: #535656;
  width: 100%;
}

header {
  font-size: 24px;
  height: 2em;
}

input[type="file"] {
  margin: 20px 0;
  display: none;
}

button, .upload-label {
  padding: 10px 20px;
  margin: 4px;
  cursor: pointer;
  color: white;
  border: none;
  border-radius: 2px;
}

button:hover, .upload-label:hover {
  opacity: 0.9;
  box-shadow: 0 12px 16px 0 rgba(0,0,0,0.24), 0 17px 50px 0 rgba(0,0,0,0.19);
}

button {
  background-color: #008CBA;
}

.upload-label {
  background-color: #2196F3;
}

#controls, .controls {
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.controls {
  padding: 15px;
  background-color: #f5f5f5;
  border-radius: 8px;
}

#controls input, .slider-container {
  margin: 5px 0;
}

.slider {
  width: 200px;
  margin: 0 10px;
}

input[type="file"]::faila-izveles-poga {
  border-radius: 2px;
  padding: 0 16px;
  height: 34px;
  cursor: pointer;
  background-color: white;
  border: 1px solid rgba(0, 140, 186);
  box-shadow: 2px 1px 0px rgba(0, 0, 0, 0.05);
  margin-right: 14px;
  transition: background-color 200ms;
}

.container {
  width: 100%;
  max-width: 620px;
  margin: 10px auto;
  text-align: center;
}

.preview {
  margin: 20px 0;
  border: 2px dashed #ccc;
  padding: 20px;
}

.filtered-image {
  max-width: 100%;
  height: auto;
  display: none;
}

.filter-options {
  margin: 5px 0;
}

.filter-type {
  margin: 10px 0;
}

.reset-btn {
  background-color: #f44336;
}

.invert-btn {
  background-color: #9c27b0;
}

div {
  padding: 1px;
}

footer {
  background-color: #162600;
  color: white;
  text-align: center;
  padding: 10px 0;
  margin-top: auto;
  width: 100%;
}

footer a {
  color: #008CBA;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

@media (max-width: 400px) {
  .container {
    width: 95%;
  }
}