/* tokens.css inlined by .design-sync/make-ds-styles.mjs */
/* Design tokens. The only place where colours, sizes and durations are defined.
   Components consume these; a hard-coded hex or px value in a component is a defect. */

:root {
  /* Colour: paper, night, image. Nothing else. */
  --paper:      #E9E5DF;
  --paper-deep: #DFDAD1;
  --ink:        #1A1A18;
  --ink-muted:  #57564F;
  --night:      #0E100F;
  --line:       rgb(26 26 24 / 0.14);

  /* Immutable copies for resetting inside a .night or overlay context */
  --ink-base:       #1A1A18;
  --ink-muted-base: #57564F;
  --line-base:      rgb(26 26 24 / 0.14);

  /* Counterparts on night surfaces */
  --ink-on-night:       var(--paper);
  --ink-muted-on-night: rgb(233 229 223 / 0.62);
  --line-on-night:      rgb(233 229 223 / 0.18);

  /* Image overlay */
  --overlay: linear-gradient(to top, rgb(14 16 15 / 0.75), rgb(14 16 15 / 0.2));

  /* Type */
  --font-sans: 'Inter Tight', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --step-display: clamp(2.75rem, 1.2rem + 6.2vw, 7rem);
  --step-h2:      clamp(1.9rem,  1.1rem + 2.6vw, 3.25rem);
  --step-h3:      clamp(1.25rem, 1.05rem + 0.7vw, 1.6rem);
  /* Card and footer titles: between h2 and h3, for headings that name rather than claim. */
  --step-title:   clamp(1.6rem,  1.2rem + 1.5vw, 2.5rem);
  --step-body:    clamp(1rem,    0.96rem + 0.2vw, 1.125rem);
  --step-small:   0.875rem;

  --weight-regular: 400;
  --weight-medium:  500;

  --track-display: -0.03em;
  --track-h2:      -0.02em;
  --track-h3:      -0.01em;

  --leading-display: 1.02;
  --leading-h2:      1.08;
  --leading-h3:      1.2;
  --leading-title:   1.1;
  --leading-body:    1.55;
  --leading-small:   1.4;

  --measure: 34em;

  /* Space */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  --section: clamp(6rem, 12vw, 11rem);
  --gutter:  clamp(1.25rem, 5vw, 5rem);
  --gap:     clamp(1rem, 2vw, 2rem);
  --container: 90rem; /* 1440px */

  /* Shape */
  --hairline: 1px;
  --radius: 0;
  --radius-sm: 2px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --dur-fast: 180ms;
  --dur:      240ms;
  --dur-slow: 320ms;
  --dur-hero: 1400ms;

  /* Chrome */
  --header-height: 4.5rem;

  /* Focus */
  --focus-width: 2px;
  --focus-offset: 3px;
}

/* Self-hosted Inter Tight, variable, latin + latin-ext. */
@font-face {
  font-family: 'Inter Tight';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../public/fonts/inter-tight-latin-wght-normal.woff2') format('woff2-variations');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter Tight';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../public/fonts/inter-tight-latin-ext-wght-normal.woff2') format('woff2-variations');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
[id] { scroll-margin-top: var(--header-height); }
body {
  min-height: 100dvh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--step-body);
  line-height: var(--leading-body);
  font-weight: var(--weight-regular);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'ss01' off, 'cv11' on;
}
img, picture, svg, video { display: block; max-width: 100%; }
img { height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
ul[role='list'], ol[role='list'] { list-style: none; padding: 0; }
a { color: inherit; text-decoration-color: currentColor; text-underline-offset: 0.14em; text-decoration-thickness: from-font; }
h1, h2, h3, h4 { font-weight: var(--weight-medium); overflow-wrap: break-word; }
p { overflow-wrap: break-word; }

/* Focus: one ring, everywhere. */
:focus-visible {
  outline: var(--focus-width) solid currentColor;
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-sm);
}
:focus:not(:focus-visible) { outline: none; }

/* Type scale */
.display {
  font-size: var(--step-display);
  font-weight: var(--weight-medium);
  letter-spacing: var(--track-display);
  line-height: var(--leading-display);
  text-wrap: balance;
}
.h2 {
  font-size: var(--step-h2);
  font-weight: var(--weight-medium);
  letter-spacing: var(--track-h2);
  line-height: var(--leading-h2);
  text-wrap: balance;
}
.h3 {
  font-size: var(--step-h3);
  font-weight: var(--weight-medium);
  letter-spacing: var(--track-h3);
  line-height: var(--leading-h3);
  text-wrap: balance;
}
.body { font-size: var(--step-body); line-height: var(--leading-body); }
.small {
  font-size: var(--step-small);
  line-height: var(--leading-small);
}
.muted { color: var(--ink-muted); }

/* An eyebrow is sentence case, muted, small. Never all caps. */
.eyebrow {
  font-size: var(--step-small);
  line-height: var(--leading-small);
  color: var(--ink-muted);
  font-weight: var(--weight-regular);
}

/* Primitives */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gap);
  row-gap: var(--space-7);
}
.section {
  padding-block: var(--section);
}
.section--tight { padding-block: calc(var(--section) * 0.6); }
/* A page head: full air above, less below, so the content follows the title. */
.section--intro { padding-block: var(--section) calc(var(--section) * 0.4); }
.measure { max-width: var(--measure); }

/* Night surface */
.night {
  background: var(--night);
  color: var(--ink-on-night);
  --ink: var(--ink-on-night);
  --ink-muted: var(--ink-muted-on-night);
  --line: var(--line-on-night);
}

/* Hairline rules carry information: they separate, they don't decorate. */
.rule { border: 0; border-top: var(--hairline) solid var(--line); }

/* Links and buttons work through underline, weight and surface. */
.link {
  display: inline-block;
  font-weight: var(--weight-medium);
  text-decoration: underline;
  text-decoration-thickness: var(--hairline);
  text-underline-offset: 0.2em;
  transition: text-underline-offset var(--dur-fast) var(--ease);
}
.link:hover { text-underline-offset: 0.3em; }

.button {
  display: inline-block;
  padding: var(--space-3) var(--space-5);
  background: var(--ink);
  color: var(--paper);
  font-weight: var(--weight-medium);
  text-decoration: none;
  line-height: var(--leading-small);
  border-radius: var(--radius);
  transition: background var(--dur-fast) var(--ease);
}
.button:hover { background: var(--ink-muted); }
.button--small { padding: var(--space-2) var(--space-4); font-size: var(--step-small); }
.night .button { background: var(--paper); color: var(--night); }
.night .button:hover { background: var(--paper-deep); }

/* Prose: long-form text */
.prose { max-width: var(--measure); }
.prose > * + * { margin-top: var(--space-5); }
.prose h2 {
  font-size: var(--step-h3);
  letter-spacing: var(--track-h3);
  line-height: var(--leading-h3);
  margin-top: var(--space-8);
}
.prose h3 { font-size: var(--step-body); margin-top: var(--space-7); }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li + li { margin-top: var(--space-3); }
.prose a { text-decoration: underline; text-decoration-thickness: var(--hairline); text-underline-offset: 0.2em; }
.prose strong { font-weight: var(--weight-medium); }
.prose blockquote {
  padding-left: var(--space-5);
  border-left: var(--hairline) solid var(--line);
  color: var(--ink-muted);
}
.prose img { width: 100%; }
.prose figcaption { margin-top: var(--space-3); font-size: var(--step-small); color: var(--ink-muted); }

/* Images */
.img-cover { width: 100%; height: 100%; object-fit: cover; }
.img-doc { filter: saturate(0.55) contrast(1.02); }
.img-mono { filter: grayscale(1) contrast(1.04); }
/* Portraits were shot on light grey; multiply lets the paper carry them like a print. */
.img-print { mix-blend-mode: multiply; }

/* Skip link */
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: var(--space-3);
  transform: translateY(-200%);
  padding: var(--space-2) var(--space-3);
  background: var(--ink);
  color: var(--paper);
  z-index: 100;
}
.skip-link:focus { transform: none; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* Motion off. No exceptions. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}