/**
 * PlanUp Design Tokens & Variables
 * Concept: Minimalist, Calm, Elegant, Notion-inspired Productivity System
 */

:root {
    /* Color Palette */
    --bg-primary: #FCFCFD;
    --bg-secondary: #F4F5F7;
    --bg-surface: #FFFFFF;
    --bg-elevated: #FFFFFF;
    --bg-hover: #F1F3F5;
    --bg-active: #E9ECEF;

    /* Text Colors */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    --text-inverse: #FFFFFF;

    /* Borders & Dividers */
    --border-subtle: #EDF0F3;
    --border-light: #E2E8F0;
    --border-medium: #CBD5E1;
    --border-focus: #1E3A5F;

    /* Accents - Muted Navy & Deep Indigo */
    --accent-navy: #1E3A5F;
    --accent-navy-hover: #152B46;
    --accent-blue: #2563EB;
    --accent-blue-light: #EFF6FF;
    --accent-blue-border: #BFDBFE;

    /* Semantic Soft Colors */
    --success: #10B981;
    --success-light: #ECFDF5;
    --success-border: #A7F3D0;
    --success-text: #065F46;

    --danger: #EF4444;
    --danger-light: #FEF2F2;
    --danger-border: #FECACA;
    --danger-text: #991B1B;

    --warning: #F59E0B;
    --warning-light: #FFFBEB;
    --warning-border: #FDE68A;
    --warning-text: #92400E;

    --info: #0284C7;
    --info-light: #F0F9FF;
    --info-border: #BAE6FD;
    --info-text: #075985;

    /* Typography */
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* Shadows - Ultra Subtle */
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.03);
    --shadow-modal: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);

    /* Radii */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Spacing & Dimensions */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 72px;
    --topbar-height: 64px;
    --bottom-nav-height: 60px;
}