:root{--space-xs:0.25rem;--space-sm:0.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4rem;--space-4xl:6rem;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--radius-full:9999px;--color-brand-navy:#1e3a8a;--color-brand-navy-dark:#1e40af;--color-brand-navy-light:#3b82f6;--color-brand-gold:#f59e0b;--color-brand-gold-dark:#d97706;--color-brand-gold-light:#fbbf24;--color-surface-base:#ffffff;--color-surface-raised:#f9fafb;--color-surface-overlay:#ffffff;--color-surface-hover:#f3f4f6;--color-surface-border:#e5e7eb;--color-surface-input:#ffffff;--color-text-primary:#111827;--color-text-secondary:#6b7280;--color-text-muted:#9ca3af;--color-text-inverse:#ffffff;--color-text-link:#1e3a8a;--color-text-link-hover:#1e40af;--color-success:#10b981;--color-success-bg:#d1fae5;--color-success-border:#6ee7b7;--color-warning:#f59e0b;--color-warning-bg:#fef3c7;--color-warning-border:#fcd34d;--color-error:#ef4444;--color-error-bg:#fee2e2;--color-error-border:#fca5a5;--color-info:#3b82f6;--color-info-bg:#dbeafe;--color-info-border:#93c5fd;--color-interactive-hover:rgba(30,58,138,0.08);--color-interactive-focus:rgba(30,58,138,0.12);--color-interactive-active:rgba(30,58,138,0.16);--color-interactive-disabled:#d1d5db;--color-nav-text:rgba(255,255,255,0.6);--color-nav-text-hover:rgba(255,255,255,1);--color-nav-text-active:rgba(255,255,255,1);--color-nav-bg-hover:rgba(255,255,255,0.1);--color-nav-bg-active:rgba(255,255,255,0.1);--color-nav-border-active:rgba(255,255,255,1);--shadow-card:0 1px 3px 0 rgba(0,0,0,0.1),0 1px 2px -1px rgba(0,0,0,0.1);--shadow-button:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-input:0 0 0 3px rgba(30,58,138,0.1);--shadow-overlay:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -4px rgba(0,0,0,0.1);--shadow-dropdown:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -2px rgba(0,0,0,0.1);--shadow-hover:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -2px rgba(0,0,0,0.1);--text-xs:0.75rem;--text-sm:0.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--text-4xl:2.25rem;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--line-height-tight:1.25;--line-height-normal:1.5;--line-height-relaxed:1.75;--layout-max-width-sm:640px;--layout-max-width-md:768px;--layout-max-width-lg:1024px;--layout-max-width-xl:1280px;--layout-max-width-2xl:1536px;--layout-container-padding:var(--space-lg);--layout-grid-gap:var(--space-md);--layout-section-gap:var(--space-2xl);--transition-fast:150ms ease-in-out;--transition-base:200ms ease-in-out;--transition-slow:300ms ease-in-out;--z-base:0;--z-dropdown:1000;--z-sticky:1100;--z-overlay:1200;--z-modal:1300;--z-popover:1400;--z-tooltip:1500}:root.dark{--color-brand-navy:#3b82f6;--color-brand-navy-dark:#2563eb;--color-brand-navy-light:#60a5fa;--color-brand-gold:#fbbf24;--color-brand-gold-dark:#f59e0b;--color-brand-gold-light:#fcd34d;--color-surface-base:#111827;--color-surface-raised:#1f2937;--color-surface-overlay:#374151;--color-surface-hover:#4b5563;--color-surface-border:#374151;--color-surface-input:#1f2937;--color-text-primary:#f9fafb;--color-text-secondary:#d1d5db;--color-text-muted:#9ca3af;--color-text-inverse:#111827;--color-text-link:#60a5fa;--color-text-link-hover:#93c5fd;--color-success:#34d399;--color-success-bg:#064e3b;--color-success-border:#047857;--color-warning:#fbbf24;--color-warning-bg:#78350f;--color-warning-border:#b45309;--color-error:#f87171;--color-error-bg:#7f1d1d;--color-error-border:#b91c1c;--color-info:#60a5fa;--color-info-bg:#1e3a8a;--color-info-border:#1e40af;--color-interactive-hover:rgba(59,130,246,0.12);--color-interactive-focus:rgba(59,130,246,0.16);--color-interactive-active:rgba(59,130,246,0.20);--color-interactive-disabled:#4b5563;--shadow-card:0 1px 3px 0 rgba(0,0,0,0.3),0 1px 2px -1px rgba(0,0,0,0.3);--shadow-button:0 1px 2px 0 rgba(0,0,0,0.2);--shadow-input:0 0 0 3px rgba(59,130,246,0.2);--shadow-overlay:0 10px 15px -3px rgba(0,0,0,0.5),0 4px 6px -4px rgba(0,0,0,0.5);--shadow-dropdown:0 4px 6px -1px rgba(0,0,0,0.3),0 2px 4px -2px rgba(0,0,0,0.3);--shadow-hover:0 4px 6px -1px rgba(0,0,0,0.3),0 2px 4px -2px rgba(0,0,0,0.3)}.space-stack-xs{margin-bottom:var(--space-xs)}.space-stack-sm{margin-bottom:var(--space-sm)}.space-stack-md{margin-bottom:var(--space-md)}.space-stack-lg{margin-bottom:var(--space-lg)}.space-stack-xl{margin-bottom:var(--space-xl)}.surface-base{background-color:var(--color-surface-base)}.surface-raised{background-color:var(--color-surface-raised)}.surface-overlay{background-color:var(--color-surface-overlay)}.text-primary{color:var(--color-text-primary)}.text-secondary{color:var(--color-text-secondary)}.text-muted{color:var(--color-text-muted)}.shadow-card{box-shadow:var(--shadow-card)}.shadow-hover{box-shadow:var(--shadow-hover)}.shadow-overlay{box-shadow:var(--shadow-overlay)}.transition-fast{transition:all var(--transition-fast)}.transition-base{transition:all var(--transition-base)}.transition-slow{transition:all var(--transition-slow)}