/* Terms of Mercy - design system
   Tokens, font setup, spacing, focus treatment and texture utilities.
   Extends the supplied handoff sheet. Changes from the handoff are marked ADDED / CHANGED. */

@font-face {
  font-family: "Playfair Display";
  src: url("../fonts/playfair-display-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
}

/* ADDED: metric-matched fallback so the display font swap does not move the layout.
   Overrides are derived from the real Playfair and Georgia metrics:
   average lowercase advance 0.5092em vs 0.4991em -> size-adjust 102%. */
@font-face {
  font-family: "Playfair Fallback";
  src: local("Georgia"), local("Times New Roman"), local("Times");
  size-adjust: 102%;
  ascent-override: 106.1%;
  descent-override: 24.6%;
  line-gap-override: 0%;
}

:root {
  --mercy-slate: #07161c;
  --mercy-black: #030b0e;
  --mercy-bone: #e8d8bc;
  --mercy-copper: #6f9185;
  --mercy-copper-dark: #466a61;
  --mercy-rule-dark: rgba(7, 22, 28, 0.34);
  --mercy-rule-light: rgba(232, 216, 188, 0.34);

  /* ADDED: the handoff copper reaches only 2.5:1 on the bone field. This darker
     oxidised green holds 5.4:1 and is used for every copper element on bone. */
  --mercy-copper-on-bone: #3b5850;

  /* ADDED: paper tone one step down from the bone field, for inset reading panels. */
  --mercy-bone-deep: #ddcbab;

  --font-display: "Playfair Display", "Playfair Fallback", Georgia, serif;
  --font-reading: Georgia, "Iowan Old Style", Charter, "Times New Roman", serif;
  /* CHANGED: the mockups set navigation, eyebrows and buttons in the reading serif
     rather than Inter, so no second web font is loaded. */
  --font-interface: var(--font-reading);

  --content-width: 77.5rem;
  --section-space: clamp(5rem, 9vw, 9rem);
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --radius: 0;

  color-scheme: dark;
}

.theme-dark {
  color: var(--mercy-bone);
  background-color: var(--mercy-slate);
}

.theme-bone {
  color: var(--mercy-slate);
  background-color: var(--mercy-bone);
}

.display-heading {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.045em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--mercy-copper);
  font-family: var(--font-interface);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.theme-bone .eyebrow {
  color: var(--mercy-copper-on-bone);
}

.paper-grain {
  position: relative;
  isolation: isolate;
}

.paper-grain::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: url("../svg/paper-grain.svg") repeat;
  content: "";
  opacity: 0.18;
  pointer-events: none;
}

.halftone {
  background-image: url("../svg/halftone-tile.svg");
  background-repeat: repeat;
}

.wire-divider {
  width: 100%;
  height: auto;
  color: var(--mercy-copper);
}

.mercy-button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  border: 1px solid currentColor;
  padding: 0.9rem 1.5rem;
  color: var(--mercy-slate);
  background: var(--mercy-copper);
  font-family: var(--font-interface);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.mercy-button:hover,
.mercy-button:focus-visible {
  color: var(--mercy-bone);
  background: var(--mercy-slate);
}

.mercy-button:focus-visible,
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--mercy-bone);
  outline-offset: 4px;
}

/* ADDED: on the bone field a bone outline is invisible, so focus flips to slate. */
.theme-bone a:focus-visible,
.theme-bone button:focus-visible,
.theme-bone summary:focus-visible,
.theme-bone .mercy-button:focus-visible {
  outline-color: var(--mercy-slate);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}