:root {
  --background: 222.2 84% 4.9%;
  --foreground: 210 40% 98%;
  --card: 222.2 84% 4.9%;
  --card-foreground: 210 40% 98%;
  --popover: 222.2 84% 4.9%;
  --popover-foreground: 210 40% 98%;
  --primary: 210 40% 98%;
  --primary-foreground: 222.2 84% 4.9%;
  --secondary: 217.2 32.6% 17.5%;
  --secondary-foreground: 210 40% 98%;
  --muted: 217.2 32.6% 17.5%;
  --muted-foreground: 215 20.2% 65.1%;
  --accent: 217.2 32.6% 17.5%;
  --accent-foreground: 210 40% 98%;
  --destructive: 0 62.8% 30.6%;
  --destructive-foreground: 210 40% 98%;
  --border: 217.2 32.6% 17.5%;
  --input: 217.2 32.6% 17.5%;
  --ring: 212.7 26.8% 83.9%;
  --radius: 0.5rem;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.bg-background {
  background-color: hsl(var(--background));
}

.text-foreground {
  color: hsl(var(--foreground));
}

.text-muted-foreground {
  color: hsl(var(--muted-foreground));
}

.text-primary {
  color: hsl(var(--primary));
}

.min-h-screen {
  min-height: 100vh;
}

.flex {
  display: flex;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.p-4 {
  padding: 1rem;
}

.w-full {
  width: 100%;
}

.max-w-md {
  max-width: 28rem;
}

.space-y-6 > * + * {
  margin-top: 1.5rem;
}

.space-y-4 > * + * {
  margin-top: 1rem;
}

.space-y-3 > * + * {
  margin-top: 0.75rem;
}

.space-y-2 > * + * {
  margin-top: 0.5rem;
}

.space-y-1 > * + * {
  margin-top: 0.25rem;
}

.text-center {
  text-align: center;
}

.w-16 {
  width: 4rem;
}

.h-16 {
  height: 4rem;
}

.bg-primary\/10 {
  background-color: hsl(var(--primary) / 0.1);
}

.rounded-full {
  border-radius: 9999px;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.mb-4 {
  margin-bottom: 1rem;
}

.text-2xl {
  font-size: 1.5rem;
  line-height: 2rem;
}

.text-3xl {
  font-size: 1.875rem;
  line-height: 2.25rem;
}

.font-bold {
  font-weight: 700;
}

.text-sm {
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.text-xs {
  font-size: 0.75rem;
  line-height: 1rem;
}

.leading-relaxed {
  line-height: 1.625;
}

.card {
  background-color: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: calc(var(--radius) + 2px);
  padding: 1.5rem;
  box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
}

.input {
  display: flex;
  height: 2.5rem;
  width: 100%;
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid hsl(var(--input));
  background-color: hsl(var(--background));
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: hsl(var(--foreground));
  transition: all 0.2s;
}

.input:focus {
  outline: none;
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 2px hsl(var(--ring) / 0.2);
}

.input::placeholder {
  color: hsl(var(--muted-foreground));
}

.font-mono {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.font-medium {
  font-weight: 500;
}

.font-semibold {
  font-weight: 600;
}

.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.right-2 {
  right: 0.5rem;
}

.top-1\/2 {
  top: 50%;
}

.-translate-y-1\/2 {
  transform: translateY(-50%);
}

.pr-12 {
  padding-right: 3rem;
}

.p-2 {
  padding: 0.5rem;
}

.mr-2 {
  margin-right: 0.5rem;
}

.slider {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: hsl(var(--muted));
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: hsl(var(--primary));
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s;
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: hsl(var(--primary));
  border-radius: 50%;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

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

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: hsl(var(--muted));
  transition: 0.2s;
  border-radius: 24px;
}

.switch-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.2s;
  border-radius: 50%;
}

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

.switch input:checked + .switch-slider:before {
  transform: translateX(20px);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.875rem;
  font-weight: 500;
  height: 2.5rem;
  padding: 0.5rem 1rem;
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary:hover {
  background-color: hsl(var(--primary) / 0.9);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.875rem;
  font-weight: 500;
  height: 2.5rem;
  padding: 0.5rem 1rem;
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
  border: 1px solid hsl(var(--border));
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  background-color: hsl(var(--secondary) / 0.8);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.875rem;
  font-weight: 500;
  background-color: transparent;
  color: hsl(var(--foreground));
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-ghost:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

.strength-bar {
  width: 100%;
  height: 8px;
  background-color: hsl(var(--muted));
  border-radius: 4px;
  overflow: hidden;
}

.strength-fill {
  height: 100%;
  width: 0%;
  transition: all 0.3s ease;
  border-radius: 4px;
}

.strength-fill.weak {
  background-color: hsl(0 84.2% 60.2%);
  width: 25%;
}

.strength-fill.fair {
  background-color: hsl(38 92% 50%);
  width: 50%;
}

.strength-fill.good {
  background-color: hsl(142.1 76.2% 36.3%);
  width: 75%;
}

.strength-fill.strong {
  background-color: hsl(142.1 70.6% 45.3%);
  width: 100%;
}

.alert {
  border: 1px solid hsl(var(--border));
  border-radius: calc(var(--radius) - 2px);
  padding: 1rem;
  background-color: hsl(var(--card));
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  color: hsl(var(--foreground));
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem;
  border-radius: calc(var(--radius) - 2px);
  background-color: hsl(var(--muted) / 0.5);
  cursor: pointer;
  transition: all 0.2s;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.875rem;
}

.history-item:hover {
  background-color: hsl(var(--muted));
}

.notification {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background-color: hsl(142.1 76.2% 36.3%);
  color: white;
  padding: 0.75rem 1rem;
  border-radius: calc(var(--radius) - 2px);
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  transform: translateX(400px);
  transition: all 0.3s ease;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.notification.show {
  transform: translateX(0);
}

.notification.error {
  background-color: hsl(0 84.2% 60.2%);
}

.hover\:underline:hover {
  text-decoration: underline;
}

@media (max-width: 640px) {
  .max-w-md {
    max-width: 100%;
  }

  .card {
    padding: 1rem;
  }
}