/* Adey Technologies design tokens. Every colour, size and shadow used by site.css comes from here. */
:root {
  /* Brand */
  --color-navy-950: #06111d;
  --color-navy-900: #0a1929; /* primary dark navy */
  --color-navy-800: #102a43;
  --color-navy-700: #1b3a5c;
  --color-navy-100: #e3ebf5;
  --color-navy-50:  #f2f6fb;

  --color-accent-500: #f9b233; /* CTA background; pair with navy text (contrast 9.9:1) */
  --color-accent-600: #e59a12;
  --color-accent-100: #fdf0d5;

  --color-link: #1459b3; /* 6.4:1 on white */
  --color-link-hover: #0d3f82;
  --color-link-on-dark: #8cc4ff;

  /* Neutrals */
  --color-white: #ffffff;
  --color-grey-50:  #f8fafc;
  --color-grey-100: #f1f4f8;
  --color-grey-200: #e2e8f0;
  --color-grey-300: #cbd5e1;
  --color-grey-500: #5a6b80; /* 5.5:1 on white: minimum for body copy */
  --color-grey-700: #334155;
  --color-grey-900: #0f172a;

  /* Feedback */
  --color-success: #13795b;
  --color-success-bg: #e7f6ef;
  --color-error: #b42318;
  --color-error-bg: #fdecea;

  /* Semantic (these are the only colours that change between light and dark themes) */
  color-scheme: light;
  --color-text: var(--color-grey-900);
  --color-text-muted: var(--color-grey-500);
  --color-heading: var(--color-navy-900);
  --color-body-strong: var(--color-grey-700);
  --color-bg: var(--color-white);
  --color-bg-alt: var(--color-grey-50);
  --color-surface: var(--color-white);           /* cards, forms, menus */
  --color-header-bg: rgba(255, 255, 255, 0.96);
  --color-tint: var(--color-navy-50);            /* icon wells, chips, hovers */
  --color-chip-text: var(--color-navy-800);
  --color-media-bg: var(--color-grey-100);       /* image placeholders */
  --color-border: var(--color-grey-200);
  --color-border-strong: var(--color-navy-100);
  --color-input-border: var(--color-grey-300);
  --color-inverse-bg: var(--color-navy-900);     /* selected pills, user chat bubbles */
  --color-inverse-text: var(--color-white);
  --color-dark-section: var(--color-navy-900);   /* page heroes, "How we work", CTA band */
  --color-dark-section-2: var(--color-navy-700);
  --color-logo-bg: transparent;
  --color-focus: #2f7de1;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --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: clamp(1.75rem, 1.4rem + 1.4vw, 2.25rem);
  --text-4xl: clamp(2rem, 1.5rem + 2.2vw, 3rem);
  --text-5xl: clamp(2.25rem, 1.6rem + 3vw, 3.75rem);
  --leading-tight: 1.2;
  --leading-normal: 1.6;
  --weight-regular: 400;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;

  /* 8px spacing scale */
  --space-0: 0;
  --space-half: 4px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-10: 80px;
  --space-12: 96px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(10, 25, 41, 0.06), 0 1px 3px rgba(10, 25, 41, 0.08);
  --shadow-md: 0 4px 12px rgba(10, 25, 41, 0.08);
  --shadow-lg: 0 16px 40px rgba(10, 25, 41, 0.12);

  /* Layout */
  --container-max: 1200px;
  --container-pad: var(--space-2);
  --header-h: 68px;
  --mobile-bar-h: 64px;

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-fast: 150ms;
  --duration-base: 250ms;
  --duration-slow: 600ms;
}

@media (min-width: 768px) {
  :root {
    --container-pad: var(--space-3);
    --header-h: 76px;
  }
}

/* Dark theme: follows the OS setting unless the visitor picked light, or picked dark explicitly.
   The two blocks must stay identical (plain CSS cannot share a rule between them). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --color-text: #e2e8f0;
    --color-text-muted: #a3b3c6;
    --color-heading: #f5f8fc;
    --color-body-strong: #c6d2e0;
    --color-bg: #07121e;
    --color-bg-alt: #0b1928;
    --color-surface: #0f2133;
    --color-header-bg: rgba(7, 18, 30, 0.92);
    --color-tint: rgba(140, 196, 255, 0.1);
    --color-chip-text: #d3e5fa;
    --color-media-bg: #0c1c2d;
    --color-border: #1e3550;
    --color-border-strong: #2e4d70;
    --color-input-border: #37536f;
    --color-inverse-bg: #e6edf5;
    --color-inverse-text: #0a1929;
    --color-dark-section: #0d2034;
    --color-dark-section-2: #173453;
    --color-logo-bg: #e6edf5;
    --color-link: #8cc4ff;
    --color-link-hover: #b8dcff;
    --color-focus: #6aa8ff;
    --color-success: #5fd3a4;
    --color-success-bg: rgba(95, 211, 164, 0.14);
    --color-error: #ff8f85;
    --color-error-bg: rgba(255, 143, 133, 0.12);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --color-text: #e2e8f0;
  --color-text-muted: #a3b3c6;
  --color-heading: #f5f8fc;
  --color-body-strong: #c6d2e0;
  --color-bg: #07121e;
  --color-bg-alt: #0b1928;
  --color-surface: #0f2133;
  --color-header-bg: rgba(7, 18, 30, 0.92);
  --color-tint: rgba(140, 196, 255, 0.1);
  --color-chip-text: #d3e5fa;
  --color-media-bg: #0c1c2d;
  --color-border: #1e3550;
  --color-border-strong: #2e4d70;
  --color-input-border: #37536f;
  --color-inverse-bg: #e6edf5;
  --color-inverse-text: #0a1929;
  --color-dark-section: #0d2034;
  --color-dark-section-2: #173453;
  --color-logo-bg: #e6edf5;
  --color-link: #8cc4ff;
  --color-link-hover: #b8dcff;
  --color-focus: #6aa8ff;
  --color-success: #5fd3a4;
  --color-success-bg: rgba(95, 211, 164, 0.14);
  --color-error: #ff8f85;
  --color-error-bg: rgba(255, 143, 133, 0.12);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
}