/**
 * css/variables.css
 * SupportFlux Design Tokens — Light-first with dark mode support
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Public+Sans:wght@400;500;600;700&display=swap');

:root {
    /* Core Colors — Light Mode */
    --color-bg-base: #fafafa;
    --color-bg-surface: #ffffff;
    --color-bg-elevated: #f1f5f9;

    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;

    --color-primary: #14b8a6;
    --color-primary-hover: #0d9488;

    --color-danger: #dc2626;
    --color-danger-hover: #b91c1c;

    --color-success: #059669;
    --color-warning: #d97706;

    --color-border: #e2e8f0;
    --color-border-hover: #cbd5e1;

    /* Typography */
    --font-family-sans: 'Inter', 'Public Sans', system-ui, -apple-system, sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.75rem;

    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;

    /* Radii */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows — Soft & Subtle */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout dimensions */
    --sidebar-width: 256px;
    --sidebar-width-collapsed: 64px;
    --header-height: 72px;
}

/* Dark Mode Overrides */
.dark {
    --color-bg-base: #0f172a;
    --color-bg-surface: #1e293b;
    --color-bg-elevated: #334155;

    --color-text-primary: #f8fafc;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;

    --color-primary: #2dd4bf;
    --color-primary-hover: #14b8a6;

    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;

    --color-success: #34d399;
    --color-warning: #fbbf24;

    --color-border: #334155;
    --color-border-hover: #475569;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

body {
    font-family: var(--font-family-sans);
    background-color: var(--color-bg-base);
    color: var(--color-text-primary);
}