/* Define color variables */
:root {
  --primary-color: #4caf50;
  --primary-color-hover: #45a049;
  --light-background: #f4f4f9;
  --light-text-color: #333;
  --light-secondary-text: #666;
  --light-container-bg: white;
  --light-border-color: #ccc;

  --dark-background: #121212;
  --dark-container-bg: #1e1e1e;
  --dark-text-color: #ffffff;
  --dark-input-bg: #333;
  --dark-border-color: #555;

  --spinner-light: rgba(0, 0, 0, 0.1);
  --spinner-primary: var(--primary-color);
}

@import url("https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap");

/* Styles */
body {
  font-family: "Roboto", sans-serif;
  background-color: var(--light-background);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100dvh;
  margin: 0;
  transition:
    background-color 0.3s,
    color 0.3s;
}

.container {
  background-color: var(--light-container-bg);
  padding: 20px 20px;
  margin: auto 10px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
  position: relative;
  width: 300px;
  transition:
    background-color 0.3s,
    color 0.3s;
}

h1 {
  font-size: 28px;
  color: var(--light-text-color);
  margin-bottom: 20px;
  margin-top: 0px;
  transition: color 0.3s;
}

p {
  font-size: 16px;
  color: var(--light-secondary-text);
  margin-bottom: 20px;
  transition: color 0.3s;
}

input[type="text"] {
  padding: 12px;
  width: 100%;
  font-size: 16px;
  border: 1px solid var(--light-border-color);
  border-radius: 5px;
  margin-bottom: 20px;
  box-sizing: border-box;
  transition:
    background-color 0.3s,
    color 0.3s,
    border-color 0.3s;
}

.button {
  padding: 12px 20px;
  font-size: 16px;
  background-color: var(--primary-color);
  color: var(--dark-text-color);
  border: none;
  border-radius: 5px;
  cursor: pointer;
  width: 100%;
  text-decoration: none;
  transition: background-color 0.3s;
}

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

.spinner {
  display: none;
  margin: 20px auto;
  width: 40px;
  height: 40px;
  border: 4px solid var(--spinner-light);
  border-top: 4px solid var(--spinner-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.loading input,
.loading button {
  opacity: 0.5;
  pointer-events: none;
}

/* Dark Mode Styles */
body.dark-mode {
  background-color: var(--dark-background);
  color: var(--dark-text-color);
}

body.dark-mode .container {
  background-color: var(--dark-container-bg);
  color: var(--dark-text-color);
}

body.dark-mode h1,
body.dark-mode p {
  color: var(--dark-text-color);
}

body.dark-mode input[type="text"] {
  background-color: var(--dark-input-bg);
  color: var(--dark-text-color);
  border-color: var(--dark-border-color);
}

body.dark-mode button {
  background-color: var(--primary-color);
  color: var(--dark-text-color);
}

/* Toggle Switch */
.mode-switch {
  position: fixed;
  top: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  color: var(--primary-color);
  transition: color 0.3s;
}

.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 30px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.3s;
  border-radius: 30px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 24px;
  width: 24px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

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

input:checked + .slider:before {
  transform: translateX(30px);
}

body.dark-mode .mode-switch {
  color: var(--dark-text-color);
}