:root {
  --btn-color: white;
  --btn-disabled-color: #d1d5db;
  --bg-color: '#d8dcdf';
}

*, *::before, *::after {
  box-sizing: border-box; margin: 0; padding: 0;
  font-family: Arial, sans-serif;
}

body { background: #0004;}
h1 {font-size: 1.25rem;}

.main {
  margin: 2rem auto; width: 380px; padding: 1em 2em;
  border-radius:0.3rem; background: #fff5;
}

.panel {
  display: flex; flex-direction: column; gap: 0.5rem;
  background: #fffe;
  border: 1px solid #0002;
  border-radius: 0.3rem;
  overflow: hidden;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
}
.panel-title {
  margin: -0.5rem -0.75rem 0 -0.75rem;
  padding: 0.5rem 0.75rem 0.3rem 0.75rem;
  border-bottom: 1px solid #0003;
  border-radius: 0.25rem 0.25rem 0 0;
  background: #0001;
  font-weight: 600;
  color: #000c;
}

.input, .dropdown {
  display:inline-flex;
  border-radius: 5px;
  background: #fff;
  color: #475569;
  border: 1px solid #ccc;
  border-width: 1px;
  outline: none;
  box-sizing: border-box;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  margin:0;
  font-size: 14px;
  font-weight: normal;
  transition: all .2s ease;
}

.button {
  padding: 0.25rem 1rem;
  border: 1px solid transparent;
  border-radius: 4px;
  background: #2563eb;
  color: var(--btn-color);
  font-weight: 600;
  cursor: pointer;
  position: relative;
  transition: all .2s ease;
}

.button:hover {
  background: #3b82f6;
}

.button.loading {
  color: transparent;
  text-shadow: none;
}

.button:disabled,.button:hover:disabled,.button.disabled,.button:hover.disabled {
  background: var(--btn-disabled-color) !important;
  border-color: var(--btn-disabled-color);
  cursor: not-allowed;
}

.input {
  padding: 0.25rem 0.5rem;
}

.panel-row {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 0.5rem;
}

.input:disabled,.select:disabled,.input.disabled,.select.disabled,.slider.disabled {
  background: var(--bg-color) !important;
  cursor: not-allowed;
}

.input.edited, .select.edited, .slider.edited>* {
  border-color: #50500040;
  background: #ffff0020;
}

.input.error, .select.error, .slider.error>* {
  border-color: #50000040;
  background: #ff000020;
}