/* Kingsley Build Group tokens. Source: C:/Users/Shell/Desktop/MAST/clients/kingsley-build/docs/Research/2026-08-26-kingsley-brand.md (2026-08-26); palette + type rules are verbatim from that note. */
:root {
  /* palette: declared values from kingsleybuild.co.uk stylesheet / logo pixels */
  --kb-ink: #101b22;       /* primary: headings, footer, secondary button fill */
  --kb-gold: #f8d11c;      /* signature accent: FILL or RULE only, never text on light */
  --kb-body: #535c62;      /* running prose */
  --kb-h2: #424242;        /* h2, small uppercase button labels */
  --kb-tint: #f0f6f8;      /* the only section tint */
  --kb-muted: #95a3b2;     /* text on the dark footer */
  --kb-meta: #778697;      /* dates, small metadata */
  --kb-border: #101b2233;  /* ink at 20% - card / input hairline */
  --kb-amber: #fdc23e;     /* secondary accent: pull-quote rule only. Never promoted. */
  --kb-charcoal: #333333;  /* logo wordmark colour */
  --kb-paper: #ffffff;

  /* semantic roles */
  --kb-bg: var(--kb-paper);
  --kb-surface: var(--kb-tint);
  --kb-text: var(--kb-body);
  --kb-text-strong: var(--kb-ink);
  --kb-text-muted: var(--kb-meta);
  --kb-rule: var(--kb-border);
  --kb-accent: var(--kb-gold);
  --kb-accent-ink: var(--kb-ink);   /* text that sits ON gold */
  --kb-dark-bg: var(--kb-ink);
  --kb-dark-text: var(--kb-muted);

  /* type: Barlow only */
  --kb-font: 'Barlow', system-ui, sans-serif;
  --kb-fw-regular: 400;
  --kb-fw-heading: 500;
  --kb-fw-label: 600;
  --kb-fw-strong: 700;
  /* 1.25 ratio steps from the 18px brand body size; display is the rounded 8th step above xs */
  --kb-fs-xs: 0.75rem;
  --kb-fs-sm: 0.9375rem;
  --kb-fs-base: 1.125rem;    /* 18px - brand body */
  --kb-fs-md: 1.4063rem;
  --kb-fs-lg: 1.7578rem;
  --kb-fs-xl: 2.1973rem;
  --kb-fs-2xl: 2.7466rem;
  --kb-fs-3xl: 3.4332rem;
  --kb-fs-display: 4.5rem;
  --kb-lh-body: 1.7;
  --kb-lh-tight: 1.1;
  --kb-track-heading: -0.02em;  /* brand -1.4px at 70px */
  --kb-track-label: 0.09em;     /* brand +1.5px at 16-17px */
  --kb-track-label-px: 1.5px;

  /* spacing: 4-pt scale */
  --kb-sp-1: 4px;
  --kb-sp-2: 8px;
  --kb-sp-3: 12px;
  --kb-sp-4: 16px;
  --kb-sp-5: 20px;
  --kb-sp-6: 24px;
  --kb-sp-7: 28px;
  --kb-sp-8: 32px;
  --kb-sp-9: 36px;
  --kb-sp-10: 40px;
  --kb-sp-11: 44px;
  --kb-sp-12: 48px;
  --kb-sp-13: 52px;
  --kb-sp-14: 56px;
  --kb-sp-15: 60px;
  --kb-sp-16: 64px;

  /* radii: brand corners are hard; sm/md exist for incidental chips and focus rings only */
  --kb-r-sm: 4px;
  --kb-r-md: 8px;
  --kb-shadow: 0 1px 2px rgba(16, 27, 34, 0.06), 0 8px 24px rgba(16, 27, 34, 0.08);

  /* layout */
  --kb-max: 1240px;
  --kb-gutter: clamp(20px, 4vw, 50px);
  --kb-section-y: clamp(64px, 8vw, 110px);
}

/* base rules */
.kb-h1, .kb-h2, .kb-h3 {
  font-family: var(--kb-font);
  font-weight: var(--kb-fw-heading);
  letter-spacing: var(--kb-track-heading);
  margin: 0;
}
.kb-h1 { font-size: clamp(2.5rem, 6vw, 4.375rem); line-height: 1; color: var(--kb-ink); }
.kb-h2 { font-size: clamp(2rem, 4.2vw, 3.125rem); line-height: 1.07; color: var(--kb-h2); }
.kb-h3 { font-size: clamp(1.75rem, 3.6vw, 2.875rem); line-height: 1.1; color: var(--kb-ink); }

.kb-label {
  font-family: var(--kb-font);
  font-weight: var(--kb-fw-label);
  font-size: var(--kb-fs-xs);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  line-height: 1.3;
}

.kb-body {
  font-family: var(--kb-font);
  font-weight: var(--kb-fw-regular);
  font-size: 18px;
  line-height: var(--kb-lh-body);
  color: var(--kb-body);
}

.kb-gold-rule {
  display: block;
  height: 4px;
  width: 64px;
  background: var(--kb-gold);
  border: 0;
  margin: 0;
}