:root {
  --background-color: #1a1a2e;
  --card-color: rgba(255, 255, 255, 0.1);
  --primary-color: #e94560;
  --text-color: #ffffff;
  --font-family: 'Poppins', sans-serif;
}

body.light-mode {
  --background-color: #f0f2f5;
  --card-color: #ffffff;
  --text-color: #333333;
}

body {
  font-family: var(--font-family);
  background-color: var(--background-color);
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  min-height: 100vh;
  margin: 0;
  transition: background-color 0.3s, color 0.3s;
}

header, footer {
  width: 100%;
  padding: 20px 0;
}

header {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

header h1 {
  margin: 0;
  font-size: 2.5em;
}

footer {
  text-align: center;
}

footer p {
  margin: 0;
}

main {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lotto-card {
  background: var(--card-color);
  padding: 40px;
  border-radius: 20px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  transition: background-color 0.3s;
}

body.light-mode .lotto-card {
    border: 1px solid #ddd;
}

.lotto-card h2 {
  margin-top: 0;
}

#numbers-container {
  display: flex;
  margin: 30px 0;
  justify-content: center;
}

.number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 10px;
  font-size: 28px;
  font-weight: 600;
  color: var(--text-color);
  transform: scale(0);
  animation: pop-in 0.5s forwards;
}

body.light-mode .number {
    color: #ffffff;
}

#generate-btn {
  background-color: var(--primary-color);
  color: #ffffff;
  border: none;
  padding: 15px 30px;
  font-size: 18px;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

#generate-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

#generate-btn:active {
  transform: translateY(-1px);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

.theme-switcher {
  display: flex;
  align-items: center;
  gap: 10px; /* Space between text and toggle */
}

.theme-switcher label {
  cursor: pointer;
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
  margin: 0; /* Remove any default label margin */
}

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

.theme-switcher label:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 60px;
  height: 34px;
  background-color: #ccc;
  border-radius: 34px;
  transition: background-color 0.2s;
}

.theme-switcher input:checked + label:before {
  background-color: var(--primary-color);
}

.theme-switcher label:after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 26px;
  height: 26px;
  background-color: white;
  border-radius: 50%;
  transition: transform 0.2s;
}

.theme-switcher input:checked + label:after {
  transform: translateX(26px);
}

@keyframes pop-in {
  to {
    transform: scale(1);
  }
}