:root{--transition-fast:150ms;--transition-normal:300ms;--transition-slow:500ms;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--shadow-sm:0 1px 3px rgba(0,0,0,0.1);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);--shadow-xl:0 20px 25px -5px rgba(0,0,0,0.1),0 10px 10px -5px rgba(0,0,0,0.04);--radius-sm:0.25rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--background-primary:#ffffff;--background-secondary:#f9fafb;--background-tertiary:#f3f4f6;--text-primary:#111827;--text-secondary:#374151;--text-muted:#6b7280;--text-inverted:#ffffff;--border-light:#f3f4f6;--border-default:#e5e7eb;--border-dark:#d1d5db;--surface-50:#fafafa;--surface-100:#f4f4f5;--surface-200:#e4e4e7;--surface-300:#d4d4d8;--surface-400:#a1a1aa;--surface-500:#71717a;--surface-600:#52525b;--surface-700:#3f3f46;--surface-800:#27272a;--surface-900:#18181b;--primary-50:#f5f3ff;--primary-100:#ede9fe;--primary-200:#ddd6fe;--primary-300:#c4b5fd;--primary-400:#a78bfa;--primary-500:#8b5cf6;--primary-600:#7c3aed;--primary-700:#6d28d9;--primary-800:#5b21b6;--primary-900:#4c1d95;--primary-color:var(--primary-700);--primary-light:var(--primary-600);--primary-dark:var(--primary-800);--primary-bg-subtle:var(--primary-50);--primary-border-subtle:var(--primary-200);--accent-50:#ecfeff;--accent-100:#cffafe;--accent-200:#a5f3fc;--accent-300:#67e8f9;--accent-400:#22d3ee;--accent-500:#06b6d4;--accent-600:#0891b2;--accent-700:#0e7490;--accent-800:#155e75;--accent-900:#164e63;--error-50:#fef2f2;--error-100:#fee2e2;--error-500:#ef4444;--error-600:#dc2626;--error-700:#b91c1c;--success-50:#f0fdf4;--success-100:#dcfce7;--success-500:#22c55e;--success-600:#16a34a;--success-700:#15803d;--warning-50:#fffbeb;--warning-100:#fef3c7;--warning-500:#f59e0b;--warning-600:#d97706;--warning-700:#b45309;--button-focus-ring:0 0 0 3px rgba(124,58,237,0.5);--input-focus-ring:0 0 0 2px rgba(124,58,237,0.3);--focus-ring-color:rgba(124,58,237,0.5)}.dark{--background-primary:#121212;--background-secondary:#1e1e1e;--background-tertiary:#2c2c2c;--text-primary:#f9fafb;--text-secondary:#e5e7eb;--text-muted:#9ca3af;--text-inverted:#111827;--border-light:#1e1e1e;--border-default:#333333;--border-dark:#4a4a4a;--surface-50:#2c2c2c;--surface-100:#2c2c2c;--surface-200:#1e1e1e;--surface-300:#1e1e1e;--surface-400:#9ca3af;--surface-500:#888888;--surface-600:#52525b;--surface-700:#3f3f46;--surface-800:#27272a;--surface-900:#18181b;--primary-color:var(--primary-400);--primary-light:var(--primary-300);--primary-dark:var(--primary-500);--primary-bg-subtle:rgba(124,58,237,0.15);--primary-border-subtle:rgba(124,58,237,0.3);--button-focus-ring:0 0 0 3px rgba(167,139,250,0.6);--input-focus-ring:0 0 0 2px rgba(167,139,250,0.4);--focus-ring-color:rgba(167,139,250,0.6);--shadow-sm:0 1px 2px rgba(0,0,0,0.15);--shadow-md:0 2px 4px -1px rgba(0,0,0,0.15),0 1px 2px -1px rgba(0,0,0,0.1);--shadow-lg:0 5px 8px -3px rgba(0,0,0,0.15),0 2px 4px -2px rgba(0,0,0,0.1);--shadow-xl:0 10px 15px -5px rgba(0,0,0,0.15),0 5px 8px -5px rgba(0,0,0,0.1)}@media (prefers-contrast:high){:root{--text-primary:#000000;--text-secondary:#111111;--border-default:#000000;--primary-color:#5800e0}.dark{--text-primary:#ffffff;--text-secondary:#eeeeee;--border-default:#ffffff;--primary-color:#a78bfa}}.focus-ring{outline:none;transition:box-shadow var(--transition-fast)}.focus-ring:focus-visible{box-shadow:var(--button-focus-ring)}.elevation-1{box-shadow:var(--shadow-sm)}.elevation-2{box-shadow:var(--shadow-md)}.elevation-3{box-shadow:var(--shadow-lg)}.elevation-4{box-shadow:var(--shadow-xl)}.dark .elevation-1,.dark .elevation-2,.dark .elevation-3,.dark .elevation-4{background-color:var(--background-secondary);-webkit-backdrop-filter:brightness(1.1);backdrop-filter:brightness(1.1)}