/* ==========================================================================
   Postcode Pizza — reset, typography and layout primitives
   Depends on tokens.css.
   ========================================================================== */

/* ---- Reset --------------------------------------------------------------- */

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

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

body {
  margin: 0;
  background: var(--pp-semolina);
  color: var(--pp-char);
  font-family: var(--pp-font-body);
  font-size: var(--pp-body-m);
  line-height: calc(var(--pp-body-m-lh) / var(--pp-body-m));
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
  border-radius: var(--pp-radius);
}

a {
  color: var(--pp-ovenred);
  text-decoration: none;
  transition: color var(--pp-dur-fast) var(--pp-ease);
}
a:hover { color: var(--pp-ember); }

::selection { background: var(--pp-flame); color: var(--pp-char); }

:focus-visible {
  outline: var(--pp-rule-solid) solid var(--pp-ovenred);
  outline-offset: 2px;
}

/* ---- 04 Typography ------------------------------------------------------- */

/* Display — Anton, uppercase always, never letterspaced past 0.02em. */
.pp-display-xl,
.pp-display-l,
.pp-display-m {
  font-family: var(--pp-font-display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: var(--pp-display-track);
}

.pp-display-xl { font-size: var(--pp-display-xl); line-height: var(--pp-display-xl-lh); }
.pp-display-l  { font-size: var(--pp-display-l);  line-height: var(--pp-display-l-lh);  }
.pp-display-m  { font-size: var(--pp-display-m);  line-height: var(--pp-display-m-lh);  }

/* Subheads — Oswald 500/600, uppercase, never for paragraphs. */
.pp-heading-l,
.pp-heading-s {
  font-family: var(--pp-font-ui);
  font-weight: 600;
  text-transform: uppercase;
}

.pp-heading-l {
  font-size: var(--pp-heading-l);
  line-height: calc(var(--pp-heading-l-lh) / var(--pp-heading-l));
  letter-spacing: var(--pp-heading-l-track);
}

.pp-heading-s {
  font-size: var(--pp-heading-s);
  line-height: calc(var(--pp-heading-s-lh) / var(--pp-heading-s));
  letter-spacing: var(--pp-heading-s-track);
}

/* Running text — Libre Franklin, measure 45–70ch. */
.pp-body-l { font-size: var(--pp-body-l); line-height: calc(var(--pp-body-l-lh) / var(--pp-body-l)); }
.pp-body-m { font-size: var(--pp-body-m); line-height: calc(var(--pp-body-m-lh) / var(--pp-body-m)); }
.pp-body-s { font-size: var(--pp-body-s); line-height: calc(var(--pp-body-s-lh) / var(--pp-body-s)); }

.pp-measure    { max-width: 70ch; text-wrap: pretty; }
.pp-measure-sm { max-width: 46ch; text-wrap: pretty; }

/* Data & stamps — Space Mono 700, uppercase, zero-padded numerals. */
.pp-meta {
  font-family: var(--pp-font-data);
  font-weight: 700;
  font-size: var(--pp-meta);
  letter-spacing: var(--pp-meta-track);
  text-transform: uppercase;
}

.pp-data-xl {
  font-family: var(--pp-font-data);
  font-weight: 700;
  font-size: var(--pp-data-xl);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* Mobile: display steps down one level, body never below 16px. */
@media (max-width: 767px) {
  .pp-display-xl { font-size: var(--pp-display-l); }
  .pp-display-l  { font-size: var(--pp-display-m); }
  .pp-display-m  { font-size: 30px; }
  .pp-body-l     { font-size: var(--pp-body-m); }
  .pp-body-s     { font-size: 16px; }
}

/* ---- 10 Layout ----------------------------------------------------------- */

.pp-page {
  max-width: var(--pp-max-width);
  margin-inline: auto;
  overflow-x: clip;
}

/* A full-bleed horizontal band. --pp-band-pad overrides the vertical rhythm
   where a concept calls for a specific value. */
.pp-band {
  padding-block: var(--pp-band-pad, var(--pp-space-6));
  padding-inline: var(--pp-gutter);
}

.pp-band--tight { --pp-band-pad: var(--pp-space-5); }
.pp-band--flush { padding-block: 0; }

/* Two-column split that collapses below tablet. */
.pp-split {
  display: grid;
  grid-template-columns: minmax(0, var(--pp-split-a, 1fr)) minmax(0, var(--pp-split-b, 1fr));
  gap: var(--pp-split-gap, 0);
}

@media (max-width: 900px) {
  .pp-split { grid-template-columns: minmax(0, 1fr); }
}

/* Vertical stacks. --pp-stack-gap sets the rhythm. */
.pp-stack {
  display: flex;
  flex-direction: column;
  gap: var(--pp-stack-gap, var(--pp-space-3));
}

.pp-cluster {
  display: flex;
  align-items: center;
  gap: var(--pp-cluster-gap, var(--pp-space-3));
  flex-wrap: wrap;
}

.pp-spread {
  display: flex;
  align-items: var(--pp-spread-align, center);
  justify-content: space-between;
  gap: var(--pp-spread-gap, var(--pp-space-5));
  flex-wrap: wrap;
}

/* ---- Surfaces ------------------------------------------------------------
   A surface sets both ground and the text colours that belong on it, so a
   component never has to know which ground it has been dropped onto. */

.pp-on-semolina {
  background: var(--pp-semolina);
  color: var(--pp-char);
  --pp-surface-body: var(--pp-ink);
  --pp-surface-meta: var(--pp-stone);
  --pp-surface-rule: var(--pp-crust);
  --pp-surface-accent: var(--pp-ovenred);
  --pp-surface-track: var(--pp-crust-deep);
  --pp-contrast-bg: var(--pp-char);
  --pp-contrast-fg: var(--pp-semolina);
}

.pp-on-paper {
  background: var(--pp-paper);
  color: var(--pp-char);
  --pp-surface-body: var(--pp-ink);
  --pp-surface-meta: var(--pp-stone);
  --pp-surface-rule: var(--pp-crust);
  --pp-surface-accent: var(--pp-ovenred);
  --pp-surface-track: var(--pp-crust-deep);
  --pp-contrast-bg: var(--pp-char);
  --pp-contrast-fg: var(--pp-semolina);
}

.pp-on-char {
  background: var(--pp-char);
  color: var(--pp-semolina);
  --pp-surface-body: var(--pp-ash);
  --pp-surface-meta: var(--pp-stone);
  --pp-surface-rule: var(--pp-char-line);
  --pp-surface-accent: var(--pp-flame);
  --pp-surface-track: var(--pp-char-rise);
  --pp-contrast-bg: var(--pp-semolina);
  --pp-contrast-fg: var(--pp-char);
}

.pp-on-ember {
  background: var(--pp-ember);
  color: var(--pp-char);
  --pp-surface-body: var(--pp-ink-on-heat);
  --pp-surface-meta: var(--pp-ink-on-heat);
  --pp-surface-rule: var(--pp-char);
  --pp-surface-accent: var(--pp-char);
  --pp-surface-track: rgba(22, 19, 15, 0.18);
  --pp-contrast-bg: var(--pp-char);
  --pp-contrast-fg: var(--pp-semolina);
}

.pp-on-ovenred {
  background: var(--pp-ovenred);
  color: var(--pp-semolina);
  --pp-surface-body: var(--pp-semolina);
  --pp-surface-meta: var(--pp-semolina);
  --pp-surface-rule: var(--pp-semolina);
  --pp-surface-accent: var(--pp-flame);
  --pp-surface-track: rgba(255, 243, 220, 0.2);
  --pp-contrast-bg: var(--pp-semolina);
  --pp-contrast-fg: var(--pp-ovenred);
}

/* ---- Text-colour utilities ----------------------------------------------- */

.pp-t-body     { color: var(--pp-surface-body, var(--pp-ink)); }
.pp-t-meta     { color: var(--pp-surface-meta, var(--pp-stone)); }
.pp-t-accent   { color: var(--pp-surface-accent, var(--pp-ovenred)); }
.pp-t-ovenred  { color: var(--pp-ovenred); }
.pp-t-flame    { color: var(--pp-flame); }
.pp-t-ash      { color: var(--pp-ash); }
.pp-t-semolina { color: var(--pp-semolina); }
.pp-t-char     { color: var(--pp-char); }

.pp-balance { text-wrap: balance; }

.pp-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}