:root {
  color-scheme: dark;
  --color-near-black: #050709;
  --color-pure-black: #000000;
  --color-white: #ffffff;
  --color-dark-navy: #0d1723;
  --color-electric-blue: #167cc6;
  --color-primary-blue: #2e9dd2;
  --color-cyan: #52ccf1;
  --color-metallic-silver: #e4e3e4;
  --color-mid-silver: #a1a1a2;

  --color-bg: var(--color-near-black);
  --color-bg-elevated: #08111a;
  --color-surface: #0a121a;
  --color-surface-hover: #0d1b29;
  --color-text: #f2f4f6;
  --color-text-muted: #aab2bc;
  --color-icon-stroke: #d9e3ed;
  --color-primary: var(--color-primary-blue);
  --color-primary-hover: var(--color-cyan);
  --color-border: rgb(82 204 241 / 18%);
  --color-border-strong: rgb(82 204 241 / 34%);
  --color-border-active: var(--color-primary-blue);
  --color-focus: var(--color-cyan);
  --color-success: #4fc58b;
  --color-warning: #e8b84b;
  --color-error: #ef6b73;
  --color-error-border: rgb(239 107 115 / 45%);
  --color-error-surface: rgb(239 107 115 / 8%);
  --color-info: var(--color-primary-blue);

  --gradient-metallic-silver: linear-gradient(180deg, #ffffff 0%, #b6b8bd 45%, #f1f1f1 72%, #858a91 100%);
  --gradient-metallic-blue: linear-gradient(180deg, #61d9ff 0%, #2e9dd2 35%, #167cc6 64%, #0a3e8b 100%);
  --gradient-primary-cta: linear-gradient(135deg, #0c4cad 0%, #126ed0 48%, #0a3c95 100%);
  --gradient-primary-cta-hover: linear-gradient(135deg, #1264ca 0%, #1887e2 48%, #0e4fb1 100%);
  --gradient-primary-cta-active: linear-gradient(135deg, #093c8c 0%, #0d5fb7 48%, #07357f 100%);
  --gradient-button-border-primary: linear-gradient(135deg, rgb(82 204 241 / 58%), rgb(22 124 198 / 30%));
  --gradient-button-border-secondary: linear-gradient(135deg, rgb(82 204 241 / 48%), rgb(82 204 241 / 24%));
  --gradient-button-border-secondary-hover: linear-gradient(135deg, rgb(82 204 241 / 78%), rgb(46 157 210 / 52%));
  --gradient-button-secondary: linear-gradient(rgb(7 13 19 / 96%), rgb(7 13 19 / 96%));
  --gradient-button-secondary-hover: linear-gradient(#0b1722, #0b1722);
  --gradient-surface: linear-gradient(145deg, rgb(22 124 198 / 10%), rgb(13 23 35 / 52%) 48%, rgb(5 7 9 / 76%));
  --gradient-section: linear-gradient(180deg, #050709 0%, #07101a 50%, #050709 100%);
  --gradient-dark-radial: radial-gradient(circle at 75% 25%, rgb(22 124 198 / 12%), transparent 42%);
  --glow-subtle: 0 0 32px rgb(22 124 198 / 12%);
  --glow-active: 0 0 0 1px rgb(82 204 241 / 30%), 0 0 24px rgb(22 124 198 / 16%);
  --glow-product: 0 0 13px 3px rgb(22 124 198 / 55%);
  --gradient-product-glow: radial-gradient(ellipse, rgb(22 124 198 / 30%), transparent 68%);

  --font-heading: "Eurostile", sans-serif;
  --font-ui: "Eurostile", sans-serif;
  --font-body: "Exo", sans-serif;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-black: 700;

  --font-size-display: clamp(2.8rem, 3.25vw, 4rem);
  --font-size-h1: clamp(2.1rem, 2.4vw, 3.1rem);
  --font-size-h2-lg: clamp(2rem, 2.35vw, 2.9rem);
  --font-size-h2: clamp(1.8rem, 2vw, 2.55rem);
  --font-size-h3: clamp(1.2rem, 1.4vw, 1.6rem);
  --font-size-h4: clamp(1rem, 1.05vw, 1.3rem);
  --font-size-body-lg: 1rem;
  --font-size-body: 0.95rem;
  --font-size-small: 0.8375rem;
  --font-size-caption: 0.725rem;
  --line-height-tight: 1.03;
  --line-height-heading: 1.08;
  --line-height-body: 1.65;
  --letter-spacing-display: 0;
  --letter-spacing-heading: 0.015em;
  --letter-spacing-eyebrow: 0.18em;
  --letter-spacing-nav: 0.055em;
  --letter-spacing-button: 0.035em;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  --space-section: clamp(3.75rem, 4.5vw, 5.25rem);
  --space-section-sm: clamp(3rem, 3.5vw, 4rem);
  --space-content: clamp(1rem, 1.35vw, 1.5rem);
  --space-heading: clamp(1.75rem, 2.5vw, 2.75rem);
  --space-card-gap: clamp(0.85rem, 1.25vw, 1.4rem);
  --section-padding-mobile: 3rem;
  --section-content-padding-mobile: 2.5rem;
  --section-space: var(--space-section);
  --content-width: 87.5rem;
  --content-width-wide: 108rem;
  --content-width-narrow: 52rem;
  --gutter: clamp(1.25rem, 3vw, 4rem);
  --container-gutter-mobile: 1rem;
  --mobile-card-gap: 0.75rem;
  --column-gap: clamp(2rem, 4vw, 6rem);
  --card-gap: var(--space-card-gap);
  --header-height: 5.75rem;
  --announcement-height: 2.25rem;

  --button-height-sm: 2.5rem;
  --button-height-md: 2.875rem;
  --button-height-lg: 3.25rem;

  --card-cut: 0.625rem;
  --card-cut-inner: calc(var(--card-cut) - 1px);
  --card-border: rgb(83 123 153 / 58%);
  --card-border-hover: rgb(82 204 241 / 72%);
  --card-surface: linear-gradient(160deg, rgb(9 22 34 / 98%), rgb(2 6 11 / 99%));
  --card-surface-hover: linear-gradient(160deg, rgb(12 29 44 / 99%), rgb(3 9 15 / 99%));
  --button-cut: 0.375rem;
  --icon-frame-size: 6.5rem;
  --icon-glyph-size: 66%;

  --radius-xs: 0.125rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-pill: 999px;
  --border-thin: 1px solid var(--color-border);
  --border-strong: 1px solid var(--color-border-strong);
  --shadow-sm: 0 10px 30px rgb(0 0 0 / 22%);
  --shadow-md: 0 22px 60px rgb(0 0 0 / 35%);
  --shadow-lg: 0 36px 90px rgb(0 0 0 / 48%);

  --z-base: 1;
  --z-dropdown: 200;
  --z-sticky: 300;
  --z-overlay: 800;
  --z-modal: 900;
  --z-toast: 1000;
  --motion-fast: 180ms;
  --motion-base: 300ms;
  --motion-slow: 560ms;
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --ease-emphasized: cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-fast: var(--motion-fast) var(--ease-standard);
  --transition-base: var(--motion-base) var(--ease-standard);
}

@media (max-width: 1100px) {
  :root { --icon-frame-size: 5.75rem; }
}

@media (max-width: 700px) {
  :root {
    --gutter: var(--container-gutter-mobile);
    --space-card-gap: var(--mobile-card-gap);
    --card-cut: 0.4375rem;
    --button-cut: 0.3125rem;
    --icon-frame-size: 4.75rem;
    --section-padding-mobile: 2.75rem;
    --section-content-padding-mobile: 2.5rem;
  }
}