:root {
    /* Colors - Premium Dark Mode */
    --k-bg-main: #0a0a0a;
    /* Almost black, main background */
    --k-bg-subtle: #121212;
    /* Secondary background */
    --k-bg-card: #1e1e1e;
    /* Card background */
    --k-bg-hover: #2a2a2a;
    /* Hover state */

    --k-text-primary: #ededed;
    /* High contrast text */
    --k-text-secondary: #a0a0a0;
    /* Subtext */
    --k-text-muted: #666666;
    /* Muted/Disabled */

    /* Brand Colors - Kryo Identity (Blue-Purple Gradient feel) */
    --k-accent-primary: #6366f1;
    /* Indigo 500 */
    --k-accent-hover: #4f46e5;
    /* Indigo 600 */
    --k-accent-glow: rgba(99, 102, 241, 0.3);

    /* Semantic Colors */
    --k-success: #10b981;
    --k-warning: #f59e0b;
    --k-error: #ef4444;
    --k-info: #3b82f6;

    /* Task Categories */
    --k-task-work: #8b5cf6;
    /* Purple (Requested) */
    --k-task-personal: #3b82f6;
    /* Blue (Classic) */
    --k-task-health: #10b981;
    /* Green (Requested/Classic) */
    --k-task-event: #f59e0b;
    /* Orange (Distinct) */

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

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Effects */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 24px;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 16px -4px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 32px 64px -12px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.4), 0 0 40px rgba(99, 102, 241, 0.2);

    /* Premium Gradients */
    --k-gradient-primary: linear-gradient(135deg, var(--k-accent-primary) 0%, #8b5cf6 100%);
    --k-gradient-dark: linear-gradient(180deg, #121212 0%, #050505 100%);
    --k-gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
    --k-gradient-sidebar: linear-gradient(180deg, rgba(18, 18, 18, 0.95) 0%, rgba(10, 10, 10, 0.98) 100%);

    /* Glassmorphism */
    --k-glass-bg: rgba(20, 20, 20, 0.65);
    --k-glass-border: rgba(255, 255, 255, 0.08);
    --k-glass-highlight: rgba(255, 255, 255, 0.05);
    --k-glass-blur: blur(16px);

    --transition-fast: 0.15s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.6, 0.32, 1.6);
}

body {
    background-color: var(--k-bg-main);
    color: var(--k-text-primary);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}