:root {
  /* Colors - Base */
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-surface-alt: #e8ecf0;
  --color-dark: #0f1115;
  --color-dark-surface: #16181d;
  --color-dark-alt: #1c1f26;
  --color-graphite: #232630;

  /* Colors - Text */
  --color-text: #16181d;
  --color-text-muted: #3d4350;
  --color-text-light: #5a6170;
  --color-text-inverse: #f6f7f8;
  --color-text-inverse-muted: #a0a6b2;

  /* Colors - Accent */
  --color-accent: #1167ff;
  --color-accent-hover: #0d52cc;
  --color-accent-cyan: #00bcd4;
  --color-accent-soft: rgba(17, 103, 255, 0.08);
  --color-accent-cyan-soft: rgba(0, 188, 212, 0.08);

  /* Colors - Brand */
  --color-brand-orange: #f5a300;
  --color-brand-orange-hover: #e09200;
  --color-brand-orange-soft: rgba(245, 163, 0, 0.1);
  --color-surface-warm: #f7f6f2;
  --color-surface-blue-light: #eaf2ff;

  /* Product accent colors */
  --color-accessneg: #1167ff;
  --color-accessneg-soft: rgba(17, 103, 255, 0.1);
  --color-distrineg: #00a878;
  --color-distrineg-soft: rgba(0, 168, 120, 0.1);
  --color-tvneg: #00b8d4;
  --color-tvneg-soft: rgba(0, 184, 212, 0.1);
  --color-fidelify: #8b5cf6;
  --color-fidelify-soft: rgba(139, 92, 246, 0.1);

  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", "Courier New", monospace;

  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.25rem;
  --fs-3xl: 3rem;
  --fs-4xl: 3.75rem;
  --fs-5xl: 5rem;
  --fs-6xl: 6.5rem;

  --lh-tight: 1.1;
  --lh-snug: 1.3;
  --lh-normal: 1.6;
  --lh-relaxed: 1.8;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --container-wide: 1440px;
  --container-max: 1440px;
  --container-content: 1240px;
  --content-max: 1240px;
  --content-narrow: 760px;
  --container-text: 760px;

  /* Radius */
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 30px;
  --radius-xl: 40px;
  --radius-full: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.16);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.4s;
  --duration-slow: 0.6s;
  --duration-slower: 0.8s;

  /* Z-index */
  --z-header: 100;
  --z-overlay: 200;
  --z-modal: 300;

  /* Header height */
  --header-height: 72px;

  /* Gradients */
  --gradient-hero: radial-gradient(ellipse 80% 60% at 70% 20%, rgba(17, 103, 255, 0.15), transparent 60%),
                   radial-gradient(ellipse 60% 50% at 20% 80%, rgba(0, 188, 212, 0.12), transparent 60%),
                   linear-gradient(180deg, var(--color-bg) 0%, #e8ecf5 100%);
  --gradient-dark: radial-gradient(ellipse 70% 50% at 30% 30%, rgba(17, 103, 255, 0.25), transparent 60%),
                   radial-gradient(ellipse 50% 40% at 80% 70%, rgba(0, 188, 212, 0.18), transparent 60%),
                   linear-gradient(160deg, #1a1d28 0%, var(--color-dark) 100%);
  --gradient-cta: radial-gradient(ellipse 60% 50% at 50% 100%, rgba(17, 103, 255, 0.30), transparent 60%),
                  linear-gradient(160deg, #1a1d28 0%, var(--color-dark) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-cyan) 100%);

  /* Glow orbs */
  --glow-blue: radial-gradient(circle, rgba(17, 103, 255, 0.22) 0%, transparent 70%);
  --glow-cyan: radial-gradient(circle, rgba(0, 188, 212, 0.18) 0%, transparent 70%);
  --glow-purple: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);

  /* Pattern backgrounds (data URIs for subtle textures) */
  --pattern-grid: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Cpath d='M40 0H0V40' fill='none' stroke='%23000' stroke-opacity='0.06' stroke-width='1'/%3E%3C/svg%3E");
  --pattern-dots: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Ccircle cx='2' cy='2' r='1' fill='%23000' fill-opacity='0.08'/%3E%3C/svg%3E");
  --pattern-grid-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Cpath d='M40 0H0V40' fill='none' stroke='%23fff' stroke-opacity='0.06' stroke-width='1'/%3E%3C/svg%3E");
}