/* CSS Variables - Extended */
:root {
  /* Existing colors */
  --primary-color: #3b82f6;
  --secondary-color: #374151;
  --error-color: #dc2626;
  --background-color: #f3f4f6;
  --border-color: #dee2e6;
  --background-light: #f8f9fa;
  --text-primary: #212529;

  /* New colors */
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --info-color: #3b82f6;
  --white: #ffffff;
  --black: #000000;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;

  /* Typography */
  --font-family: system-ui, -apple-system, sans-serif;
  --font-size-xs: 0.625rem;
  --font-size-sm: 0.75rem;
  --font-size-md: 0.875rem;
  --font-size-lg: 1rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;

  /* Font weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 2.5rem;

  /* Borders */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.375rem;
  --border-radius-lg: 0.5rem;
  --border-radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);

  /* Z-index */
  --z-index-dropdown: 1000;
  --z-index-sticky: 1020;
  --z-index-fixed: 1030;
  --z-index-modal-backdrop: 1040;
  --z-index-modal: 1050;
  --z-index-popover: 1060;
  --z-index-tooltip: 1070;
}

/* New Utility Classes */
/* Flexbox utilities */
.flex-1 { flex: 1; }
.flex-auto { flex: auto; }
.flex-initial { flex: initial; }
.flex-none { flex: none; }

.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.items-stretch { align-items: stretch; }

/* Grid utilities */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Spacing utilities */
.m-0 { margin: 0; }
.p-0 { padding: 0; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

/* Typography utilities */
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Border utilities */
.rounded-sm { border-radius: var(--border-radius-sm); }
.rounded-md { border-radius: var(--border-radius-md); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-full { border-radius: var(--border-radius-full); }

/* Shadow utilities */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Transition utilities */
.transition { transition: all 0.2s ease-in-out; }
.transition-colors { transition: background-color 0.2s ease-in-out, border-color 0.2s ease-in-out, color 0.2s ease-in-out; }
.transition-opacity { transition: opacity 0.2s ease-in-out; }
.transition-transform { transition: transform 0.2s ease-in-out; }

/* New Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-weight: var(--font-weight-medium);
  transition: all 0.2s ease-in-out;
  cursor: pointer;
}

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

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

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

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

/* Status indicators */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--border-radius-full);
  display: inline-block;
}

.status-dot-success { background-color: var(--success-color); }
.status-dot-error { background-color: var(--error-color); }
.status-dot-warning { background-color: var(--warning-color); }
.status-dot-info { background-color: var(--info-color); }