/* shadcn/ui CSS Variables */
:root {
  --background: 0 0% 100%;
  --foreground: 240 10% 3.9%;
  --card: 0 0% 100%;
  --card-foreground: 240 10% 3.9%;
  --popover: 0 0% 100%;
  --popover-foreground: 240 10% 3.9%;
  --primary: 240 9% 9%;
  --primary-foreground: 0 0% 98%;
  --secondary: 240 4.8% 95.9%;
  --secondary-foreground: 240 5.9% 10%;
  --muted: 240 4.8% 95.9%;
  --muted-foreground: 240 3.8% 46.1%;
  --accent: 240 4.8% 95.9%;
  --accent-foreground: 240 5.9% 10%;
  --destructive: 0 84.2% 60.2%;
  --destructive-foreground: 0 0% 98%;
  --border: 240 5.9% 90%;
  --input: 240 5.9% 90%;
  --ring: 240 5% 64.9%;
  --radius: 0.5rem;
}

.dark {
  --background: 240 10% 3.9%;
  --foreground: 0 0% 98%;
  --card: 240 10% 3.9%;
  --card-foreground: 0 0% 98%;
  --popover: 240 10% 3.9%;
  --popover-foreground: 0 0% 98%;
  --primary: 0 0% 98%;
  --primary-foreground: 240 5.9% 10%;
  --secondary: 240 3.7% 15.9%;
  --secondary-foreground: 0 0% 98%;
  --muted: 240 3.7% 15.9%;
  --muted-foreground: 240 5% 64.9%;
  --accent: 240 3.7% 15.9%;
  --accent-foreground: 0 0% 98%;
  --destructive: 0 62.8% 30.6%;
  --destructive-foreground: 0 0% 98%;
  --border: 240 3.7% 15.9%;
  --input: 240 3.7% 15.9%;
  --ring: 240 4.9% 83.9%;
}

* {
  border-color: hsl(var(--border));
}

body {
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
}

/* shadcn/ui Button Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s, background-color 0.2s, border-color 0.2s, box-shadow 0.2s;
  border: 1px solid transparent;
  outline: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid hsl(var(--ring));
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  pointer-events: none;
}

.btn-primary {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

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

.btn-secondary {
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
}

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

.btn-outline {
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--background));
}

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

.btn-destructive {
  background-color: hsl(var(--destructive));
  color: hsl(var(--destructive-foreground));
}

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

/* shadcn/ui Card Components */
.card {
  border-radius: calc(var(--radius) + 2px);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
}

/* shadcn/ui Input Components */
.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;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

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

.input:focus {
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 2px hsl(var(--ring) / 0.2);
}

.input:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

/* shadcn/ui Toast Components */
.toast {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 50;
  background-color: hsl(var(--background));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  padding: 1rem;
  max-width: 24rem;
  animation: toast-slide-in 0.3s ease-out;
}

.toast.success {
  border-color: hsl(142.1 76.2% 36.3%);
  background-color: hsl(143.8 61.2% 20.2%);
  color: hsl(144.3 60.7% 73.7%);
}

.toast.error {
  border-color: hsl(var(--destructive));
  background-color: hsl(var(--destructive) / 0.1);
  color: hsl(var(--destructive));
}

.toast.warning {
  border-color: hsl(38.5 92.1% 50.2%);
  background-color: hsl(35.5 91.7% 32.9%);
  color: hsl(31.6 81.4% 74.3%);
}

@keyframes toast-slide-in {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

/* shadcn/ui Dialog Components */
.dialog-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background-color: rgb(0 0 0 / 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: dialog-overlay-show 0.15s ease-out;
}

.dialog-content {
  background-color: hsl(var(--background));
  border-radius: var(--radius);
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  padding: 1.5rem;
  max-width: 28rem;
  width: 100%;
  margin: 1rem;
  animation: dialog-content-show 0.15s ease-out;
}

@keyframes dialog-overlay-show {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes dialog-content-show {
  from {
    opacity: 0;
    transform: translate(-50%, -48%) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

/* Loading Spinner */
.spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Utility Classes */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}