:root {
  /* Base Theme Colors */
  --base-bg-color: #1d1d1d;
  --base-text-color: #e0e0e0;
  --base-bg-color-light: #292929;

  /* Accent / Secondary Colors */
  --secondary-color: rgba(237, 157, 0);
  --secondary-hover: rgba(237, 157, 0);

  /* Unchecked / Disabled State Colors */
  --unchecked-color: #444444;
  --unchecked-border-color: #353535;
}

/* === INPUT TYPES === */

input, select, textarea {
  background-color: var(--base-bg-color);
  color: var(--base-text-color);
  border: 2px solid var(--unchecked-border-color);
  border-radius: 8px;
  padding: 0.5em 1em;
  font-family: 'Manrope', sans-serif;
  transition: border-color 0.2s, background-color 0.2s;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--secondary-color);
  outline: none;
  background-color: #2a2a2a;
}

input[type="submit"] {
  width: 150px;
  display: inline-flex;
  margin: 20px auto;
  cursor: pointer;
}

input[type="submit"]:hover {
  background-color: var(--base-bg-color-light);
  transform: scale(1.03);
}

input[type="checkbox"],
input[type="radio"] {
  accent-color: var(--secondary-color);
  background-color: var(--unchecked-color);
  transform: scale(1.5);
  cursor: pointer;
  width: 15px;
  height: 15px;
}

input[type="range"] {
  -webkit-appearance: none; /* For Chrome, Safari, Edge */
  appearance: none;
  width: 20%;
  cursor: pointer;
  outline: none;
  /* background: transparent; /* Make the default track transparent */
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 8px;
  background: rgba(75, 75, 75, 0.75);
  border-radius: 4px;
}

input[type="range"]::-moz-range-track { /* For Firefox */
  height: 8px;
  background: rgb(0, 0, 0);
  border-radius: 4px;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  height: 20px;
  width: 20px;
  background-color: var(--secondary-hover);
  border-radius: 50%;
  margin-top: -6px; /* Adjust to center vertically with the track */
}

input[type="range"]::-moz-range-thumb {
  height: 20px;
  width: 20px;
  background-color: var(--secondary-color);
  border-radius: 50%;
}

/* ==== settings for param inputs ==== */

.fill-settings {
  display: flex;
  flex-direction: column;
  gap: 1.5em;
}

.form-group {
  display: flex;
  flex-direction: column;
  font-family: 'Manrope', sans-serif;
  color: var(--base-text-color);
}

.form-group label {
  margin-bottom: 0.5em;
  font-size: 0.9rem;
}

.form-group label input[type="checkbox"] {
    width: 15px;
    height: 15px;
    margin: 10px;
}

/* === Responsive Layout Styles === */

.generator-window {
  display: flex;
  height: auto;
  align-items: stretch;
  margin: 0;
}

.sidebar {
  width: 20%;
  background-color: rgba(50, 50, 50, 0.5);
  padding: 20px;
  box-sizing: border-box;
  border-radius: 20px;
  max-height: none;         /* allow sidebar to grow */
  overflow: visible;
}

.main {
  flex: 1;
  padding: 20px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column; /* Stack vertically */
}

.header {
  text-align: center;
  font-family: 'Climate Crisis', sans-serif;
  font-size: 35px;
  padding: 15px;
  color: var(--base-text-color);
}

.sidebar input {
  width: 100%;
  margin-top: 10px;
  box-sizing: border-box;
}

/* ==== Responsive: stack layout on mobile ==== */

@media (max-width: 768px) {
  .responsive-container {
    flex-direction: column;
  }

  .sidebar {
    width: 100% !important;
  }
}

#notation {
    background-color:white;
    border-radius:20px;
    display:inline-flex;
    padding:10px;
    margin: 20px auto;
}

/* === TOGGLE SWITCH === */
.toggle {
  position: relative;
  display: flex;
  justify-content: center;   /* centers horizontally */
  align-items: center;       /* centers vertically */
  margin: 10px auto;
  gap: 10px;                 /* space between label and toggle */
  text-align: center;
  width: 56px;
  height: 30px;
  vertical-align: middle;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--unchecked-color);
  transition: 0.4s ease;
  border-radius: 34px;
  border: 2px solid var(--unchecked-border-color);
}

.slider::before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 3px;
  bottom: 3px;
  background-color: var(--base-bg-color-light);
  border-radius: 50%;
  transition: 0.4s ease;
}

/* Checked (ON) State */
.toggle input:checked + .slider {
  background-color: var(--secondary-color);
  box-shadow: 0 0 10px var(--secondary-color);
}

.toggle input:checked + .slider::before {
  transform: translateX(26px);
  background-color: var(--base-bg-color);
}

/* Focus glow */
.toggle input:focus + .slider {
  box-shadow: 0 0 5px var(--secondary-color);
}

/* Label styling for consistent layout */
.toggle-label {
  color: var(--base-text-color);
  font-family: 'Manrope', sans-serif;
  font-size: 0.95rem;
  margin-right: 10px;
  user-select: none;
}


/* ==== Generation animation ==== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animated-up {
  opacity: 0;
  animation: fadeUp 0.6s ease forwards;
}

.animated-down {
  opacity: 0;
  animation: fadeDown 0.6s ease forwards;
}


/* ==== Main page mobile settings ==== */

@media (max-width: 768px) {
  .fill-settings {
    gap: 1em;
  }

  .generator-window {
    flex-direction: column; /* Stack vertically */
  }

  .sidebar {
    width: 100%; /* Full width on mobile */
    order: 1; /* Appear first (above main) */
    margin-bottom: 20px; /* Space between sidebar and main */
  }

  .main {
    order: 2; /* Appear second (below sidebar) */
    width: 100%;
  }

  #notation {
    width: 100%;
  }
}