/* Global Styling */
* {
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0 20px;
  background-color: #121212;
  color: #e0e0e0;
}

header {
  text-align: center;
  padding: 20px 0;
  background-color: #1e1e1e;
  margin-bottom: 10px;
}

h1 {
  margin: 0;
  color: #f0f0f0;
}

/* Main Layout */
main {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Simulation Section Styling */
#simulationSection {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

#simulationContainer {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: #1e1e1e;
  padding: 10px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

#simulationButtonContainer {
  display: flex;
  flex-direction: row;
  align-items: center;
}

#buttonPanel {
  display: flex;
  flex-direction: column;
  margin-right: 10px;
}

#buttonPanel button {
  margin-bottom: 10px;
  background-color: #333;
  border: 1px solid #555;
  color: #e0e0e0;
  padding: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
  border-radius: 4px;
}

#buttonPanel button:hover {
  background-color: #444;
  transform: scale(1.05);
}

canvas {
  display: block;
  border: 1px solid #444;
  background-color: #1e1e1e;
  max-width: 100%;
  height: auto;
}

/* Center and space out radio buttons in the mode and boundary sections */
#controlModeGroup .radio-group,
#boundaryControlGroup .radio-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px; /* Adjust spacing as needed */
  margin-top: 10px;
}

/* Optional: center the entire section label and group */
#modeBoundaryGroup label {
  display: block;
  text-align: center;
  margin-bottom: 5px;
}

/* Controls Section */
.wrapper{
  display: flex;
  flex-direction: column;
}

.controlsSection {
  flex-grow: 1; /* Both will stretch to the same width */
  max-width: 900px;
  background-color: #1e1e1e;
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  margin-bottom: 20px;
}

#controls {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: space-between;
}

.control-group {
  flex: 1 1 300px;
  display: flex;
  flex-direction: column;
  margin-bottom: 10px;
}

.control-group label {
  margin-bottom: 5px;
  font-weight: bold;
}

.control-group input[type="text"],
.control-group input[type="number"] {
  padding: 5px;
  background-color: #333;
  color: #e0e0e0;
  border: 1px solid #555;
  border-radius: 4px;
  margin-bottom: 5px;
}

.control-group input[type="range"] {
  width: 100%;
  background: transparent;
  margin: 10px 0;
}

.radio-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.radio-group input[type="radio"] {
  margin: 0;
}

/* Custom Slider Styling */
input[type="range"]::-webkit-slider-runnable-track {
  width: 100%;
  height: 6px;
  cursor: pointer;
  background: linear-gradient(
    to right,
    #555 0%,
    #555 calc(var(--default, 50%) - 1px),
    #f00 calc(var(--default, 50%) - 1px),
    #f00 calc(var(--default, 50%) + 1px),
    #555 calc(var(--default, 50%) + 1px),
    #555 100%
  );
  border-radius: 3px;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  border: none;
  height: 16px;
  width: 16px;
  border-radius: 50%;
  background: #bbb;
  margin-top: -5px;
  transition: background-color 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

input[type="range"]:hover::-webkit-slider-thumb {
  background: #e0e0e0;
  transform: scale(1.2);
}

input[type="range"]::-moz-range-track {
  width: 100%;
  height: 6px;
  cursor: pointer;
  background: linear-gradient(
    to right,
    #555 0%,
    #555 calc(var(--default, 50%) - 1px),
    #f00 calc(var(--default, 50%) - 1px),
    #f00 calc(var(--default, 50%) + 1px),
    #555 calc(var(--default, 50%) + 1px),
    #555 100%
  );
  border-radius: 3px;
}

input[type="range"]::-moz-range-thumb {
  border: none;
  height: 16px;
  width: 16px;
  border-radius: 50%;
  background: #bbb;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

input[type="range"]:hover::-moz-range-thumb {
  background: #e0e0e0;
  transform: scale(1.2);
}

/* Highlight invalid input with red border */
.input-error {
  border: 2px solid red !important;
}

/* Media Queries for Smaller Devices */
@media (max-width: 768px) {
  #controls {
    flex-direction: column;
  }
  
  .control-group {
    flex: 1 1 100%;
  }
  
  #simulationContainer {
    flex-direction: column;
  }
  
  #buttonPanel {
    flex-direction: row;
    margin-bottom: 10px;
    margin-right: 0;
  }
  
  #buttonPanel button {
    margin-right: 10px;
    margin-bottom: 0;
  }
}

/* --- Tab Container Styles for Control Mode --- */
.control-tab-container {
  background-color: #1e1e1e;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  margin-bottom: 1rem;
  width: 100%;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.control-tab-container h3 {
  margin: 0 0 0.5rem 0;
  text-align: center;
  color: #f0f0f0;
}

.tab-header {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid #555;
  padding-bottom: 0.5rem;
}

.tab-button {
  background-color: #333;
  border: none;
  color: #e0e0e0;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-radius: 4px 4px 0 0;
  font-size: 1rem;
  transition: background-color 0.2s ease;
}

.tab-button.active {
  background-color: #555;
}

.tab-button:not(.active):hover {
  background-color: #444;
}

.tab-content {
  padding: 1rem;
  background-color: #333;
  border-radius: 0 4px 4px 4px;
  color: #e0e0e0;
}

/* Optionally, style the input inside the tab content */
.tab-content input[type="text"] {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.5rem;
  background-color: #222;
  border: 1px solid #555;
  color: #e0e0e0;
  border-radius: 4px;
}

/* --- Existing Radio Button Centering for Right End Condition --- */
#controlsSection .radio-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
}

.mathquill-field {
  display: inline-block;
  min-width: 150px;
  min-height: 1.5em;
  border: 1px solid #555;
  padding: 0.2em;
  background-color: #222;
  color: #e0e0e0;
  border-radius: 4px;
}

/* Style for the time display inside the function tab */
.tab-content .time-display {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 0.9rem;
  background: rgba(0, 0, 0, 0.5);
  padding: 2px 6px;
  border-radius: 4px;
  color: #e0e0e0;
}

/* Styles for the function table */
#functionTableContainer {
  margin-top: 2rem;
}
#functionTable {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 0.5rem;
}
#functionTable th, #functionTable td {
  border: 1px solid #555;
  padding: 0.5rem;
  text-align: left;
  color: #e0e0e0;
}
#functionTable th {
  background-color: #333;
}
#addFunctionBtn {
  background-color: #333;
  border: none;
  color: #e0e0e0;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}
#addFunctionBtn:hover {
  background-color: #444;
}

.applyFunctionBtn {
  background-color: #444;
  border: none;
  color: #e0e0e0;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

button:active {
  box-shadow: 2.5px 2.5px 2px #222;
}

.applyFunctionBtn:hover {
  background-color: #444;
}


.function-color {
  background-color: #444;
}

select {
  color: #e0e0e0 !important;
  background-color: #444;
}

option {
  color: #e0e0e0;
  background-color: #444;
}

.removeFunction {
  background-color: #800;
  border: none;
  color: #fff;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}
.removeFunction:hover {
  background-color: #a00;
}

.mq-cursor {
  border-left: 1px solid white !important;
  }