/* 1. The "Magic" fix for system UI elements */
html {
  color-scheme: dark;
}

:root {
  --bg-color: #121212;
  --surface-color: #1e1e1e;
  --text-primary: #e0e0e0;
  --accent-color: #bb86fc; /* Purple */
  --accent-secondary: #03dac6; /* Teal */
  --border-color: #333333;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.5;
  margin: 0;
  padding: 1rem; /* Reduced from 2rem */
}
input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;

  /* Use 'px' for absolute control to prevent scaling issues */
  width: 18px;
  height: 18px;

  /* CRITICAL: Prevents stretching in Flex/Grid layouts */
  flex: none;
  display: inline-grid;
  place-content: center;

  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 3px;
  cursor: pointer;
  vertical-align: middle;
  transition: background 0.2s;
}

input[type="checkbox"]:checked {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
}

/* The Checkmark */
input[type="checkbox"]::before {
  content: "";
  width: 10px;
  height: 10px;
  background-color: #000; /* Visible check color */
  transform: scale(0);
  transition: 100ms transform ease-in-out;

  /* The shape of the check */
  clip-path: polygon(
    14% 44%,
    0 65%,
    50% 100%,
    100% 16%,
    80% 0%,
    43% 62%
  );
}

input[type="checkbox"]:checked::before {
  transform: scale(1);
}

/* --- Compact Base Elements --- */
input,
textarea,
select,
button {
  background-color: var(--surface-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 0.95rem;
}

button {
  background-color: var(--accent-color);
  color: #000;
  font-weight: 600;
  padding: 0.3rem .4rem;
  border: none;
  cursor: pointer;
}

h1,
h2,
h3 {
  margin: 1rem 0 0.5rem 0;
}

code {
  padding: 0.1rem 0.3rem;
  background: var(--surface-color);
}

/* 2. Target the specific arrows (Spin Buttons) */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  /* This forces the browser to use a dark-themed version of the arrows */
  filter: invert(1) brightness(0.8);
  cursor: pointer;
}

/* 3. Ensure the input itself looks compact and dark */
input[type="number"] {
  background-color: var(--surface-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.5rem; /* Compact padding */
  border-radius: 4px;
}