stack-chan

html,body {
  height: 100%;
  margin: 0;
  padding: 0;
}
body {
  font-family: 'Roboto', sans-serif;
  color: #212121;
  background-color: #f5f5f5;
}

.app {
  width: 100%;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
}

.dev-home {
  box-sizing: border-box;
  padding: 2rem;
  justify-content: center;
  gap: 1.5rem;
}

.app-icon {
  display: block;
  width: min(240px, 70vw);
  height: auto;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.2));
}

.card {
  position: relative;
  background-color: white;
  padding: 1.4em;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.26);
  width: 100%;
  max-width: 600px;
}

button {
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.26);
}

.card button {
  box-shadow: none;
}

.card h1,h2,h3,h4,h5,h6 {
  margin: 0.3em 0;
}

.form {
  display: flex;
  flex-direction: column;
}

.form-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1em;
}

.form-group label {
  flex: 1;
  text-align: right;
  margin-right: 1em;
}

.form-group input,select,textarea {
  flex: 2;
  padding: 0.5em;
}

.card input,select,textarea {
  border: 1px solid #bdbdbd;
  border-radius: 4px;
}

button {
  background-color: #2196F3;
  color: white;
  padding: 0.7em 1em;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(.25, .8, .25, 1);
}

button:hover {
  background-color: #1976D2;
}

.toast {
  position: absolute;
  font-size: 1.2em;
  padding: 0.4em;
  top: 0;
  right: 0;
  max-width: 400px;
  background-color: #388E3C;
  color: white;
  visibility: hidden;
  transform: translateY(-100px);
}

.toast.visible {
  visibility: visible;
  animation: toast 3s ease 1 normal;
}

@keyframes toast {
  33% {
    transform: translateY(0);
  }
  66% {
    transform: translateY(0);
  }
}