/**
 * Global Styles
 * 
 * Base styles and theme variables for the annotation platform
 */

/* Base Reset */
* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--theme-background);
  color: var(--theme-paragraph);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--theme-headline);
  margin: 0;
  font-weight: 600;
}

p {
  color: var(--theme-paragraph);
  margin: 0;
}

a {
  color: var(--theme-button);
  text-decoration: none;
  transition: color 0.2s ease;

  &:hover {
    color: var(--theme-button-hover);
  }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--theme-background-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--theme-border);
  border-radius: 4px;

  &:hover {
    background: var(--theme-paragraph-subtle);
  }
}

/* Focus Styles */
*:focus-visible {
  outline: 2px solid var(--theme-button);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: var(--theme-button);
  color: var(--theme-button-text);
}

/* Override @humansignal/ui Button styles to use theme colors */
:global {
  /* Button base overrides */
  .button_base__1vMSr {
    --text-color: var(--theme-headline);
    --background-color: transparent;
    --border-color: var(--theme-border);
    --background-color-hover: var(--theme-background-secondary);
    --border-color-hover: var(--theme-button);
    --background-color-active: var(--theme-background-tertiary);
  }

  /* Primary button variant */
  .button_variant-primary__bdYre {
    --text-color: var(--theme-button-text) !important;
    --background-color: var(--theme-button) !important;
    --border-color: var(--theme-button) !important;
    --background-color-hover: var(--theme-button-hover) !important;
    --border-color-hover: var(--theme-button-hover) !important;
    --background-color-active: var(--theme-button-active) !important;
  }

  /* Neutral button variant */
  .button_variant-neutral__3kZXm {
    --text-color: var(--theme-headline);
    --background-color: transparent;
    --border-color: var(--theme-border);
    --background-color-hover: var(--theme-background-secondary);
    --border-color-hover: var(--theme-button);
    --background-color-active: var(--theme-background-tertiary);
  }

  /* Input fields */
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="number"],
  textarea,
  select {
    background: var(--theme-background) !important;
    color: var(--theme-headline) !important;
    border-color: var(--theme-border) !important;

    &:focus {
      border-color: var(--theme-button) !important;
      outline-color: var(--theme-button) !important;
    }

    &::placeholder {
      color: var(--theme-paragraph-subtle) !important;
    }
  }

  /* Form labels */
  label {
    color: var(--theme-headline) !important;
  }

  /* Error states */
  .text-error-foreground,
  [class*="error"] {
    color: var(--theme-error) !important;
  }

  /* Disabled states */
  :disabled,
  [disabled] {
    opacity: 0.5;
    cursor: not-allowed;
  }
}

/* Utility Classes */
.text-headline {
  color: var(--theme-headline);
}

.text-paragraph {
  color: var(--theme-paragraph);
}

.text-subtle {
  color: var(--theme-paragraph-subtle);
}

.bg-primary {
  background: var(--theme-background);
}

.bg-secondary {
  background: var(--theme-background-secondary);
}

.bg-tertiary {
  background: var(--theme-background-tertiary);
}

.border-default {
  border-color: var(--theme-border);
}

.border-subtle {
  border-color: var(--theme-border-subtle);
}

/* Card Styles */
.card {
  background: var(--theme-card-background);
  border: 1px solid var(--theme-card-border);
  border-radius: 12px;
  padding: 24px;
  transition: all 0.2s ease;

  &:hover {
    border-color: var(--theme-button);
    box-shadow: 0 4px 12px var(--theme-shadow);
  }
}

/* Button Base Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;

  &:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }
}

.btn-primary {
  background: var(--theme-button);
  color: var(--theme-button-text);

  &:hover:not(:disabled) {
    background: var(--theme-button-hover);
  }

  &:active:not(:disabled) {
    background: var(--theme-button-active);
  }
}

.btn-secondary {
  background: transparent;
  color: var(--theme-paragraph);
  border: 1px solid var(--theme-border);

  &:hover:not(:disabled) {
    background: var(--theme-background-secondary);
    border-color: var(--theme-button);
    color: var(--theme-button);
  }
}

/* Status Colors */
.status-success {
  color: var(--theme-success);
}

.status-warning {
  color: var(--theme-warning);
}

.status-error {
  color: var(--theme-error);
}

.status-info {
  color: var(--theme-info);
}

/* Loading Spinner */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--theme-border);
  border-top-color: var(--theme-button);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* Transitions */
.fade-enter {
  opacity: 0;
}

.fade-enter-active {
  opacity: 1;
  transition: opacity 0.3s ease;
}

.fade-exit {
  opacity: 1;
}

.fade-exit-active {
  opacity: 0;
  transition: opacity 0.3s ease;
}