/* RHYTHM & CONCORD — TYPOGRAPHY SYSTEM
   Production baseline, subject to usability testing.

   Fonts: Inter (body) and Barlow Condensed (display), both SIL Open Font License
   (licences in /fonts). Self-hosted Latin subsets of the Google Fonts builds, via Fontsource 5.1.0.
   Barlow Condensed has no variable version, so it ships as three static weights. */

@font-face {
  font-family: "RNC Inter";
  src: url("../fonts/inter-latin-variable.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
}

@font-face {
  font-family: "RNC Barlow Condensed";
  src: url("../fonts/barlow-condensed-latin-600.woff2") format("woff2");
  font-style: normal;
  font-weight: 600;
  font-display: optional;
}

@font-face {
  font-family: "RNC Barlow Condensed";
  src: url("../fonts/barlow-condensed-latin-700.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: optional;
}

@font-face {
  font-family: "RNC Barlow Condensed";
  src: url("../fonts/barlow-condensed-latin-800.woff2") format("woff2");
  font-style: normal;
  font-weight: 800;
  font-display: optional;
}

:root {
  --font-body: "RNC Inter", Arial, sans-serif;
  --font-display: "RNC Barlow Condensed", "Arial Narrow", Arial, sans-serif;

  /* Colours */
  --ink: #0a0a0a;
  --paper: #f5f5f2;
  --muted-on-dark: #b8b8b8;
  --muted-on-light: #525252;

  /* Font sizes */
  --text-xs: 0.875rem;
  --text-sm: 0.9375rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-lead: clamp(1.125rem, 1.5vw, 1.25rem);

  --text-h4: clamp(1.25rem, 2vw, 1.5rem);
  --text-h3: clamp(1.5rem, 3vw, 2rem);
  --text-h2: clamp(1.75rem, 4vw, 3rem);
  --text-h1: clamp(2.25rem, 5.5vw, 4rem);

  --text-hero-lg: clamp(2.5rem, 8vw, 5.5rem);
  --text-hero-xl: clamp(3rem, 10vw, 7rem);

  --text-price: clamp(1.75rem, 3vw, 2rem);

  /* Leading */
  --leading-display: 0.98;
  --leading-heading: 1.12;
  --leading-body: 1.55;
  --leading-ui: 1.4;

  /* Tracking */
  --tracking-body: normal;
  --tracking-label: 0.06em;
  --tracking-display: -0.01em;

  /* Measure */
  --measure-reading: 68ch;

  /* Weight */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-heavy: 800;
}

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  font-weight: var(--weight-regular);
}

.rnc-display {
  font-family: var(--font-display);
  font-weight: var(--weight-heavy);
  font-size: var(--text-hero-xl);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  text-wrap: balance;
  overflow-wrap: normal;
}

.rnc-heading {
  font-family: var(--font-body);
  font-weight: var(--weight-bold);
  line-height: var(--leading-heading);
}

.rnc-body {
  max-width: var(--measure-reading);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.rnc-lead {
  max-width: var(--measure-reading);
  font-size: var(--text-lead);
  line-height: 1.5;
}

.rnc-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-ui);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.rnc-price,
.rnc-time,
.rnc-countdown,
.rnc-order-total {
  font-family: var(--font-body);
  font-variant-numeric: lining-nums tabular-nums;
  font-feature-settings: "lnum" 1, "tnum" 1;
}

.rnc-price {
  font-size: var(--text-price);
  font-weight: var(--weight-bold);
  line-height: 1.15;
}

.rnc-critical {
  font-family: var(--font-body);
  font-size: max(1rem, 1em);
  font-weight: var(--weight-semibold);
  line-height: 1.45;
}

.rnc-form-label {
  display: block;
  margin-block-end: 0.4rem;
  font-size: 0.9375rem;
  font-weight: var(--weight-semibold);
}

.rnc-input {
  width: 100%;
  min-height: 3rem;
  font: 400 1rem/1.4 var(--font-body);
}

.rnc-button {
  min-height: 3rem;
  padding: 0.75rem 1.25rem;
  font: 650 1rem/1.4 var(--font-body);
  letter-spacing: 0.005em;
}

.rnc-button:focus-visible,
.rnc-input:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid currentColor;
  outline-offset: 3px;
}

.rnc-event-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 1rem;
}

.rnc-event-meta > * {
  min-width: 0;
  overflow-wrap: anywhere;
}

.rnc-critical,
.rnc-price,
.rnc-order-total {
  text-overflow: clip;
  white-space: normal;
  overflow: visible;
}

/* Optional reading preferences (set on <html>, e.g. data-reading-size="large") */
[data-reading-size="large"] { --text-base: 1.125rem; }
[data-reading-size="largest"] { --text-base: 1.25rem; }
[data-reading-spacing="relaxed"] { --leading-body: 1.75; --measure-reading: 60ch; }
[data-reading-font="system"] { --font-body: system-ui, sans-serif; }
[data-reading-font="atkinson"] { --font-body: "Atkinson Hyperlegible", Arial, sans-serif; }

/* Responsive display tuning */
@media (max-width: 599px) {
  .rnc-display {
    hyphens: none;
    overflow-wrap: normal;
  }

  .rnc-event-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}