:root {
  --primary-color: #4a6cf7;
  --background-color: #0a013f;
  --panel-color: rgba(30, 30, 60, 0.85);
  --accent-color: #ff5500;
  --text-color: #ffffff;
  --text-shadow: 0 0 10px rgba(74, 108, 247, 0.8);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Roboto", sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  overflow: hidden;
}

button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 5px;
  cursor: pointer;
  font-family: "Orbitron", sans-serif;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  transition: all 0.15s ease;
  flex-grow: 1;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

#start-btn,
#reset-btn {
  margin-top: 10px;
  width: 100%;
  display: block;
}

#place-waypoints-btn,
#clear-waypoints-btn {
  margin-top: 10px;
  width: 46%;
  display: inline-block;
}

#clear-waypoints-btn {
  margin-left: 6%;
}

#waypoints-container {
  margin-top: 10px;
  max-height: 150px;
  overflow-y: auto;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 5px;
  padding: 8px;
}

button:hover {
  background-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

button:active {
  transform: translateY(1px);
}

#stats {
  margin: 15px 0;
  align-items: center;
  font-size: 1.1rem;
  display: flex;
}

#container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  z-index: 10;
}

#info {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 300px;
  padding: 20px;
  background-color: var(--panel-color);
  z-index: 100;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(5px);
  transition: all 0.25s ease;
}

#info:hover {
  box-shadow: 0 6px 30px rgba(74, 108, 247, 0.4);
}

#simulation {
  /* flex: 1; */
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.panel-section {
  margin-bottom: 20px;
}

.controls-list {
  font-size: 0.8rem;
  list-style-type: none;
  padding-left: 5px;
  margin-top: 5px;
}

.controls-list li {
  margin-bottom: 3px;
}

.control-group {
  margin: 15px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.control-group label {
  font-weight: bold;
  min-width: 80px;
}

.control-group select {
  flex: 1;
  padding: 5px;
  border-radius: 4px;
  background-color: rgba(0, 0, 0, .2);
  color: var(--text-color);
  border: 1px solid var(--primary-color);
  font-family: "Roboto", sans-serif;
}

.control-group select:focus {
  outline: none;
  border-color: var(--accent-color);
}

.section-title {
  font-weight: bold;
  margin-bottom: 5px;
  color: var(--primary-color);
}

#loading-progress {
  width: 300px;
  height: 6px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
  margin-top: 20px;
  overflow: hidden;
}

#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--background-color);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 50;
  transition: opacity 0.5s ease;
}

#loading-screen h1 {
  font-family: "Orbitron", sans-serif;
  margin-bottom: 30px;
  text-shadow: var(--text-shadow);
  color: var(--text-color);
}

#progress-bar {
  height: 100%;
  width: 0%;
  background-color: var(--primary-color);
  border-radius: 3px;
  transition: width 0.25s ease-out;
}