:root {
    --color-primary: #4f46e5; /* Indigo 600 */
    --color-primary-hover: #4338ca; /* Indigo 700 */
    --color-background: #f9fafb; /* Gray 50 */
    --color-text: #111827; /* Gray 900 */
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}
body {
    background-color: var(--color-background);
    font-family: var(--font-sans);
    color: var(--color-text);
}
.text-primary { color: var(--color-primary); }
.bg-primary { background-color: var(--color-primary); }
.border-primary { border-color: var(--color-primary); }
.ring-primary { --tw-ring-color: var(--color-primary); }
.hover\:bg-primary-hover:hover { background-color: var(--color-primary-hover); }
.has-\[:checked\]:border-primary { border-color: var(--color-primary); }
.has-\[:checked\]:bg-primary\/10 { background-color: var(--color-primary); opacity: 0.1; }