:root {
  --background-color: #f0f2f5;
  --container-background: white;
  --text-color: #333;
  --button-background: #007bff;
  --button-text-color: white;
  --button-hover-background: #0056b3;
  --slider-background: #ccc;
  --secondary-btn-bg: #6c757d;
  --secondary-btn-hover-bg: #5a6268;
}

body.dark-mode {
  --background-color: #1a1a1a;
  --container-background: #2b2b2b;
  --text-color: #f0f2f5;
  --button-background: #0056b3;
  --button-hover-background: #003d80;
  --slider-background: #555;
  --secondary-btn-bg: #5a6268;
  --secondary-btn-hover-bg: #494f54;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background-color: var(--background-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
}

.container {
  text-align: center;
  background-color: var(--container-background);
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s;
}

h1 {
  margin-bottom: 30px;
}

h2 {
    margin-top: 0;
}

.lotto-numbers-container {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
  min-height: 50px;
}

.lotto-ball {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  color: white;
  font-size: 20px;
  font-weight: bold;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

#generate-btn {
  background-color: var(--button-background);
  color: var(--button-text-color);
  border: none;
  padding: 15px 30px;
  font-size: 16px;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  margin-right: 10px; /* Space between buttons */
}

#generate-btn:hover {
  background-color: var(--button-hover-background);
}

.secondary-btn {
    background-color: var(--secondary-btn-bg);
    color: var(--button-text-color);
    border: none;
    padding: 15px 30px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.secondary-btn:hover {
    background-color: var(--secondary-btn-hover-bg);
}

/* Form Styles */
.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: bold;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
  width: calc(100% - 24px); /* Account for padding and border */
  padding: 10px;
  border: 1px solid var(--text-color); /* Use theme color for border */
  border-radius: 5px;
  background-color: var(--background-color); /* Use main bg for inputs */
  color: var(--text-color); /* Use theme text color */
  transition: border-color 0.3s, background-color 0.3s, color 0.3s;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
  border-color: var(--button-background); /* Highlight focus with button color */
  outline: none;
}

.submit-btn {
  background-color: var(--button-background);
  color: var(--button-text-color);
  border: none;
  padding: 15px 30px;
  font-size: 16px;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  width: 100%;
  box-sizing: border-box;
}

.submit-btn:hover {
  background-color: var(--button-hover-background);
}


/* Modal Styles */
.modal {
  display: none; 
  position: fixed; 
  z-index: 1; 
  left: 0;
  top: 0;
  width: 100%; 
  height: 100%; 
  overflow: auto; 
  background-color: rgba(0,0,0,0.6); 
}

.modal-content {
  background-color: var(--container-background);
  margin: 15% auto; 
  padding: 20px;
  border: 1px solid #888;
  width: 80%; 
  max-width: 500px;
  border-radius: 10px;
  position: relative;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  animation: animatetop 0.4s;
}

@keyframes animatetop {
  from {top: -300px; opacity: 0}
  to {top: 0; opacity: 1}
}

.close-btn {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close-btn:hover,
.close-btn:focus {
  color: var(--text-color);
  text-decoration: none;
  cursor: pointer;
}


/* Theme Switcher */
.theme-switch-container {
  position: absolute;
  top: 20px;
  right: 20px;
}

.theme-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--slider-background);
  transition: .4s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
}

input:checked + .slider {
  background-color: var(--button-background);
}

input:checked + .slider:before {
  transform: translateX(26px);
}

.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}