:root{--tc-blue:#0d6efd;--tc-blue-light:#3d8bfd;--tc-blue-dark:#0a58ca;--tc-emerald:#198754;--tc-emerald-dark:#146c43;--tc-violet:#6f42c1;--tc-warning:#ffc107;--tc-danger:#dc3545;--tc-info:#0dcaf0;--tc-secondary:#6c757d;--tc-black:#0a0a0a;--tc-white:#fafafa;--tc-surface-dark:#111111;--tc-surface-light:#ffffff;--tc-text-dark:#1f2937;--tc-text-light:#e5e7eb;--tc-text-muted:#6b7280;--tc-text-muted-light:#9ca3af;--tc-border:#e5e7eb;--tc-border-dark:#1f2937;--tc-gradient-hero:linear-gradient(135deg,#0a0a0a 0%,#111827 50%,#0f172a 100%);--tc-gradient-cta:linear-gradient(135deg,var(--tc-blue) 0%,var(--tc-violet) 100%);--tc-gradient-accent:linear-gradient(90deg,var(--tc-blue) 0%,var(--tc-emerald) 100%);--tc-font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--tc-font-mono:'JetBrains Mono','Fira Code',monospace;--tc-text-xs:0.75rem;--tc-text-sm:0.875rem;--tc-text-base:1rem;--tc-text-lg:1.125rem;--tc-text-xl:1.25rem;--tc-text-2xl:1.5rem;--tc-text-3xl:1.875rem;--tc-text-4xl:2.25rem;--tc-text-5xl:3rem;--tc-text-6xl:3.75rem;--tc-leading-tight:1.15;--tc-leading-normal:1.6;--tc-leading-relaxed:1.75;--tc-weight-light:300;--tc-weight-normal:400;--tc-weight-medium:500;--tc-weight-semibold:600;--tc-weight-bold:700;--tc-section-py:6rem;--tc-section-py-sm:4rem;--tc-container-max:1140px;--tc-container-narrow:800px;--tc-container-px:1.5rem;--tc-transition:200ms ease;--tc-transition-slow:400ms ease;--tc-shadow-sm:0 1px 3px rgba(0,0,0,0.08);--tc-shadow-md:0 4px 12px rgba(0,0,0,0.1);--tc-shadow-lg:0 8px 30px rgba(0,0,0,0.12);--tc-shadow-glow:0 0 40px rgba(37,99,235,0.15);--tc-radius-sm:0.375rem;--tc-radius-md:0.75rem;--tc-radius-lg:1rem;--tc-radius-xl:1.5rem}