:root {
    /* TechnoCore Brand Palette */
    --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;

    /* Neutrals */
    --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;

    /* Gradients */
    --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%
    );

    /* Typography */
    --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;

    /* Spacing */
    --tc-section-py: 6rem;
    --tc-section-py-sm: 4rem;
    --tc-container-max: 1140px;
    --tc-container-narrow: 800px;
    --tc-container-px: 1.5rem;

    /* Effects */
    --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);

    /* Borders */
    --tc-radius-sm: 0.375rem;
    --tc-radius-md: 0.75rem;
    --tc-radius-lg: 1rem;
    --tc-radius-xl: 1.5rem;
}