/*
  chrisjhutchins.com — Design Tokens
  Source of truth: Brand Alchemy visual system.
  Brand Alchemy design system — do not modify without sign-off.
*/

:root {
  /* ============ Colors ============ */
  --color-navy: #0D1D47;             /* Primary brand — H1/H2/H3, body text on light */
  --color-bg: #F4F7FF;               /* Page background, light cool white */
  --color-text-on-dark: #F4F7FF;     /* Body text inside dark sections */
  --color-accent-blue: #2666FF;      /* Accent / link */
  --color-accent-red: #C90410;       /* CTA bg / callout */
  --color-pale-blue: #DDE7FB;        /* Soft surface / card bg */
  --color-white: #FFFFFF;            /* Inverted surfaces */
  --color-black: #000000;            /* Deep shadow / hairlines */

  /* Semantic aliases */
  --color-text: var(--color-navy);
  --color-text-inverse: var(--color-text-on-dark);
  --color-link: var(--color-accent-blue);
  --color-cta-bg: var(--color-accent-red);
  --color-cta-text: var(--color-white);
  --color-section-soft: var(--color-pale-blue);
  --color-section-deep: var(--color-navy);

  /* ============ Typography ============ */
  --font-display: "Inter", "Inter Tight", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body:    "Inter Tight", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-accent:  "Quicksand", var(--font-body);

  /* Type scale */
  --fs-display: 76px;
  --fs-h1: 58px;
  --fs-h2: 50px;
  --fs-h3: 38px;
  --fs-lead: 22px;
  --fs-body: 18px;
  --fs-small: 16px;
  --fs-caption: 14px;
  --fs-utility: 12px;

  --lh-h1: 64px;
  --lh-h2: 54px;
  --lh-h3: 46px;
  --lh-body: 24px;
  --lh-tight: 1.05;
  --lh-relaxed: 1.5;

  --ls-h1: -2.9px;
  --ls-h2: -2.5px;
  --ls-h3: 0;
  --ls-body: 0;

  /* Weights (only those actually loaded) */
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-black: 900;

  /* ============ Radii ============ */
  --radius-xs: 8px;
  --radius-sm: 10px;
  --radius-md: 20px;
  --radius-pill: 100px;
  --radius-xl: 170px;
  /* Asymmetric accents (preserve from Brand Alchemy) */
  --radius-tab-r: 0 10px 0 0;
  --radius-tab-l: 20px 0 0 20px;

  /* ============ Spacing scale ============ */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* ============ Layout ============ */
  --max-content: 1200px;
  --max-narrow: 760px;
  --section-pad-y: var(--space-10);
  --section-pad-x: var(--space-6);

  /* ============ Breakpoints (reference only — used in @media below) ============ */
  /* mobile: 0–599 | tablet: 600–1023 | desktop: 1024+ */

  /* ============ Motion ============ */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 450ms;
}

/* ============ Base resets ============ */

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-link);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

button {
  font-family: inherit;
  cursor: pointer;
}

/* ============ Headings ============ */

h1, .h1 {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  line-height: var(--lh-h1);
  letter-spacing: var(--ls-h1);
  font-weight: var(--fw-medium);
  color: var(--color-navy);
  margin: 0 0 var(--space-5);
}

h2, .h2 {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  line-height: var(--lh-h2);
  letter-spacing: var(--ls-h2);
  font-weight: var(--fw-medium);
  color: var(--color-navy);
  margin: 0 0 var(--space-5);
}

h3, .h3 {
  font-family: var(--font-body);
  font-size: var(--fs-h3);
  line-height: var(--lh-h3);
  letter-spacing: var(--ls-h3);
  font-weight: var(--fw-medium);
  color: var(--color-navy);
  margin: 0 0 var(--space-4);
}

h4, .h4 {
  font-family: var(--font-body);
  font-size: var(--fs-lead);
  line-height: 1.3;
  font-weight: var(--fw-semibold);
  color: var(--color-navy);
  margin: 0 0 var(--space-3);
}

p, .body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: var(--fw-regular);
  margin: 0 0 var(--space-4);
}

.lead {
  font-size: var(--fs-lead);
  line-height: 1.4;
  font-weight: var(--fw-medium);
}

.small { font-size: var(--fs-small); }
.caption { font-size: var(--fs-caption); }
.utility { font-size: var(--fs-utility); letter-spacing: 0.04em; text-transform: uppercase; }

/* ============ Section primitives ============ */

.section {
  padding: var(--section-pad-y) var(--section-pad-x);
}

.section--soft { background: var(--color-section-soft); }
.section--deep { background: var(--color-section-deep); color: var(--color-text-inverse); }
.section--deep h1, .section--deep h2, .section--deep h3, .section--deep h4 {
  color: var(--color-text-inverse);
}

.container { max-width: var(--max-content); margin: 0 auto; }
.container--narrow { max-width: var(--max-narrow); margin: 0 auto; }

/* ============ Button primitives ============ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  letter-spacing: 0;
  border: 0;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
  text-decoration: none;
}

.btn:hover { transform: translateY(-1px); text-decoration: none; }

.btn--primary {
  background: var(--color-cta-bg);
  color: var(--color-cta-text);
}

.btn--primary:hover { background: #b00410; }

.btn--secondary {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn--ghost {
  background: transparent;
  color: var(--color-navy);
  border: 1px solid var(--color-navy);
}

/* ============ Responsive type ============ */

@media (max-width: 1023px) {
  :root {
    --fs-h1: 44px;
    --lh-h1: 48px;
    --ls-h1: -1.8px;
    --fs-h2: 38px;
    --lh-h2: 44px;
    --ls-h2: -1.5px;
    --fs-h3: 28px;
    --lh-h3: 36px;
    --section-pad-y: var(--space-9);
  }
}

@media (max-width: 599px) {
  :root {
    --fs-h1: 36px;
    --lh-h1: 40px;
    --ls-h1: -1.2px;
    --fs-h2: 30px;
    --lh-h2: 36px;
    --ls-h2: -1px;
    --fs-h3: 24px;
    --lh-h3: 32px;
    --fs-body: 16px;
    --section-pad-y: var(--space-8);
    --section-pad-x: var(--space-4);
  }
}