/* openpremier.app
   Colours and type come from tokens.css (the --op-* variables and @font-face
   rules), copied from the brand repo by scripts/sync-brand.sh. This file only
   maps them to roles, light and dark. No external fonts, images or scripts. */

/* ------------------------------------------------------------ roles */

:root {
  color-scheme: light dark;

  /* Light: cream page, green text (BRAND.md section 3). */
  --bg: var(--op-cream);
  --band-alt: #ebe2ca;            /* cream, one step towards cream-dim */
  --card: #fbf8f0;                /* cream, lifted towards white */
  --text: var(--op-green-900);    /* 13.1:1 on cream */
  --text-muted: var(--op-green-700);
  --eyebrow: var(--op-pitch-ink); /* 6.0:1 on cream */
  --link: var(--op-green-700);
  --link-hover: var(--op-green-600);
  --rule: var(--op-cream-dim);
  --focus: var(--op-pitch-ink);
  --code-bg: rgba(15, 42, 26, 0.07);
  --btn-bg: var(--op-green-800);  /* cream on green-800: 10.3:1 */
  --btn-text: var(--op-cream);
  --btn-hover: var(--op-green-700);
  --header-bg: var(--op-green-800);
  --footer-bg: var(--op-green-900);

  --measure: 46rem;
  --gutter: clamp(1rem, 4vw, 2rem);
  --radius: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Dark: night outfield, cream text, pitch accents. */
    --bg: var(--op-green-950);
    --band-alt: var(--op-green-900);
    --card: var(--op-green-900);
    --text: var(--op-cream);          /* 14.5:1 on green-950 */
    --text-muted: var(--op-cream-dim);
    --eyebrow: var(--op-pitch);       /* 8.0:1 on green-950 */
    --link: var(--op-pitch);
    --link-hover: var(--op-cream);
    --rule: var(--op-green-700);
    --focus: var(--op-pitch);
    --code-bg: rgba(244, 236, 216, 0.09);
    --btn-bg: var(--op-pitch);
    --btn-text: var(--op-green-950);
    --btn-hover: var(--op-cream);
    --header-bg: var(--op-green-900);
    --footer-bg: var(--op-green-900);
  }
  .band-alt .card { background: var(--op-green-800); }
}

/* The header, hero and footer are dark in both schemes. */
.site-header,
.hero,
.site-footer {
  --focus: var(--op-pitch);
  --link: var(--op-cream);
  --link-hover: var(--op-pitch);
}

/* ------------------------------------------------------------ base */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--bg);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--op-font-sans);
  font-weight: var(--op-body-weight);
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-wrap: break-word;
}

main { flex: 1 0 auto; }
main:focus { outline: none; }

img { max-width: 100%; height: auto; }

h1, h2, h3 {
  font-family: var(--op-font-serif);
  font-weight: var(--op-headline-weight);
  letter-spacing: var(--op-headline-tracking);
  line-height: 1.2;
  text-wrap: balance;
  scroll-margin-top: 1.25rem;
}

p, li { text-wrap: pretty; }

a {
  color: var(--link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
a:hover {
  color: var(--link-hover);
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 2px;
}

strong { font-weight: 700; }

code {
  font-family: var(--op-font-mono);
  font-weight: var(--op-hud-weight);
  font-size: 0.875em;
  background: var(--code-bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  overflow-wrap: break-word;
}

mark.placeholder {
  background: var(--op-pitch);
  color: var(--op-green-950);
  font-family: var(--op-font-mono);
  font-size: 0.85em;
  padding: 0.05em 0.3em;
  border-radius: 4px;
  outline: 1px dashed var(--op-leather);
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.5rem 0 1.5rem;
}

.wrap {
  width: 100%;
  max-width: 72rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--eyebrow);
  font-family: var(--op-font-sans);
  font-weight: var(--op-label-weight);
  font-size: 0.8125rem;
  letter-spacing: var(--op-label-tracking);
  text-transform: uppercase;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -4rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  background: var(--op-pitch);
  color: var(--op-green-950);
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus { top: 0.75rem; color: var(--op-green-950); }

/* ------------------------------------------------------------ buttons */

.button {
  display: inline-block;
  padding: 0.8rem 1.4rem;
  border: 2px solid transparent;
  border-radius: 999px;
  font-family: var(--op-font-sans);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
}
.button:hover { text-decoration: none; }

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

.hero .button-primary {
  background: var(--op-pitch);       /* 7.7:1 with green-950 */
  color: var(--op-green-950);
}
.hero .button-primary:hover { background: var(--op-cream); color: var(--op-green-950); }

.button-ghost {
  border-color: var(--op-cream-dim);
  color: var(--op-cream);
}
.button-ghost:hover {
  border-color: var(--op-cream);
  background: rgba(244, 236, 216, 0.1);
  color: var(--op-cream);
}

/* ------------------------------------------------------------ header */

.site-header {
  background: var(--header-bg);
  color: var(--op-cream);
  border-bottom: 1px solid rgba(201, 174, 118, 0.25);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-block: 0.875rem;
}

.brand { display: block; line-height: 0; border-radius: 4px; }
.brand img { display: block; width: auto; height: 3.25rem; }

.site-nav ul {
  display: flex;
  gap: 0.25rem 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-block;
  padding: 0.5rem 0;
  color: var(--op-cream);
  font-weight: var(--op-label-weight);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
}
.site-nav a:hover { color: var(--op-pitch); }
.site-nav a[aria-current="page"] {
  color: var(--op-pitch);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.45em;
}

@media (max-width: 26rem) {
  .brand img { height: 2.75rem; }
  .site-nav ul { gap: 0.25rem 1rem; }
  .site-nav a { font-size: 0.75rem; letter-spacing: 0.1em; }
}

/* ------------------------------------------------------------ home */

.hero {
  color: var(--op-cream);
  background-color: var(--op-green-900);
  /* The brand's floodlit ground, under a green-950 scrim where the text and
     logo sit (BRAND.md: 85% or more behind the logo). */
  background-image:
    linear-gradient(180deg, rgba(11, 32, 20, 0.75) 0%, rgba(11, 32, 20, 0) 30%),
    linear-gradient(90deg, rgb(11, 32, 20) 0%, rgba(11, 32, 20, 0.97) 18%, rgba(11, 32, 20, 0.86) 40%, rgba(11, 32, 20, 0.3) 72%, rgba(11, 32, 20, 0.15) 100%),
    url("/img/ground.jpg");
  background-size: auto, auto, cover;
  background-position: 0 0, 0 0, 22% 100%;
  background-repeat: no-repeat;
  border-bottom: 3px solid var(--op-pitch);
}

@media (max-width: 48rem) {
  .hero {
    background-image:
      linear-gradient(180deg, rgba(11, 32, 20, 0.92) 0%, rgba(11, 32, 20, 0.86) 55%, rgba(11, 32, 20, 0.78) 100%),
      url("/img/ground.jpg");
    background-size: auto, cover;
    background-position: 0 0, 50% 100%;
  }
}

.hero-inner { padding-block: clamp(3rem, 9vw, 6.5rem) clamp(3rem, 8vw, 5.5rem); }

.hero-lockup { margin: 0 0 1.75rem; line-height: 0; }
.hero-lockup img { display: block; width: min(100%, 30rem); }

.hero-tagline {
  margin: 0 0 1rem;
  max-width: 22ch;
  font-family: var(--op-font-serif);
  font-weight: 600;
  font-size: clamp(1.875rem, 4.5vw, 3rem);
  line-height: 1.12;
  text-wrap: balance;
}

.hero-text {
  margin: 0 0 2rem;
  max-width: 36rem;
  color: var(--op-cream-dim);
  font-size: 1.1875rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.hero-note {
  margin: 0;
  color: var(--op-cream-dim);
  font-size: 0.875rem;
}

.band { padding-block: clamp(3rem, 7vw, 5rem); }
.band-alt { background: var(--band-alt); }
.band h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 3.5vw, 2.375rem);
}

.section-lead {
  margin: 0 0 2rem;
  max-width: 40rem;
  color: var(--text-muted);
  font-size: 1.125rem;
}

.platforms {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr));
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.platforms li {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.625rem;
  padding: 1rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}
.platform-name { font-weight: 700; }

.badge {
  flex: none;
  padding: 0.2rem 0.6rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  color: var(--eyebrow);
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 1rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}
.card {
  position: relative;
  padding: 1.5rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}
.card:hover { border-color: var(--link); }
.card:focus-within { outline: 3px solid var(--focus); outline-offset: 2px; }
.card h3 { margin: 0 0 0.5rem; font-size: 1.375rem; }
.card h3 a { color: var(--text); text-decoration: none; }
.card h3 a:focus-visible { outline: none; }
.card h3 a::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); }
.card:hover h3 a { color: var(--link); text-decoration: underline; }
.card p { margin: 0; color: var(--text-muted); }

.contact-line { margin: 2rem 0 0; font-size: 1.0625rem; }

.prose-narrow { max-width: var(--measure); }
.prose-narrow p { margin: 0 0 1rem; }

/* ------------------------------------------------------------ documents */

.page { padding-block: clamp(2rem, 6vw, 4rem) clamp(3rem, 8vw, 5rem); }

.prose { max-width: var(--measure); }

.page-head { margin-bottom: 2rem; }
.page-head h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2.25rem, 6vw, 3.25rem);
  line-height: 1.08;
}

.page-dates {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin: 0 0 1.25rem;
  color: var(--eyebrow);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lead {
  margin: 0;
  max-width: 40rem;
  font-family: var(--op-font-serif);
  font-size: 1.25rem;
  line-height: 1.5;
}

.page-contact { margin: 1.5rem 0 0; }

.prose h2 {
  margin: 2.75rem 0 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: 1.75rem;
}
.prose h3 {
  margin: 2rem 0 0.75rem;
  font-size: 1.3125rem;
}
.prose p { margin: 0 0 1rem; }
.prose ul { margin: 0 0 1.25rem; padding-left: 1.25rem; }
.prose li { margin: 0 0 0.5rem; padding-left: 0.25rem; }
.prose li::marker { color: var(--eyebrow); }

.doc-body > :first-child { margin-top: 0; }

/* Contents */
.toc {
  margin: 0 0 2.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}
.prose .toc-title {
  margin: 0 0 0.75rem;
  padding: 0;
  border: 0;
  color: var(--eyebrow);
  font-family: var(--op-font-sans);
  font-weight: var(--op-label-weight);
  font-size: 0.75rem;
  letter-spacing: var(--op-label-tracking);
  text-transform: uppercase;
}
.toc ol { margin: 0; padding: 0; list-style: none; }
.toc li { margin: 0; padding: 0; }
.toc a {
  display: block;
  padding: 0.3rem 0;
  color: var(--text);
  font-size: 0.9375rem;
  line-height: 1.4;
  text-decoration: none;
}
.toc a:hover { color: var(--link); text-decoration: underline; }

@media (min-width: 70rem) {
  .prose.has-toc {
    display: grid;
    grid-template-columns: minmax(0, var(--measure)) 17rem;
    column-gap: 4rem;
    max-width: none;
  }
  .has-toc .page-head { grid-column: 1 / -1; }
  .has-toc .doc-body { grid-column: 1; grid-row: 2; }
  .has-toc .toc {
    grid-column: 2;
    grid-row: 2;
    align-self: start;
    position: sticky;
    top: 1.25rem;
    max-height: calc(100vh - 2.5rem);
    overflow-y: auto;
    margin: 0;
  }
}

/* Tables */
.table-wrap { margin: 1.5rem 0 2rem; overflow-x: auto; }
.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  line-height: 1.5;
}
.prose th,
.prose td {
  padding: 0.75rem 0.875rem;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}
.prose thead th {
  border-bottom: 2px solid var(--eyebrow);
  color: var(--eyebrow);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.prose tbody th { font-weight: 700; }
.prose .cols-2 tbody th { width: 30%; }
.prose .cols-3 tbody th { width: 30%; }

/* Narrow screens: each row becomes a card, labelled from the header. */
@media (max-width: 40rem) {
  .prose table,
  .prose tbody,
  .prose tr,
  .prose th,
  .prose td { display: block; width: auto; }
  .prose .cols-2 tbody th,
  .prose .cols-3 tbody th { width: auto; }
  .prose thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  .prose tbody tr {
    margin: 0 0 0.75rem;
    padding: 0.875rem 1rem;
    background: var(--card);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
  }
  .prose tbody th,
  .prose tbody td { padding: 0; border: 0; }
  .prose tbody th { margin-bottom: 0.35rem; font-size: 1rem; }
  .prose .cols-3 td::before {
    content: attr(data-label);
    display: block;
    margin-top: 0.6rem;
    color: var(--eyebrow);
    font-weight: 700;
    font-size: 0.6875rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }
}

/* Delete page */
.callout {
  margin: 0 0 2.5rem;
  padding: 1.5rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--eyebrow);
  border-radius: var(--radius);
}
.callout p:last-child { margin-bottom: 0; }
.callout .button { margin-bottom: 0.25rem; }

/* 404 */
.link-list { list-style: none; padding: 0 !important; }
.link-list li { padding: 0 !important; }

/* ------------------------------------------------------------ footer */

.site-footer {
  background: var(--footer-bg);
  color: var(--op-cream-dim);
  border-top: 1px solid rgba(201, 174, 118, 0.25);
  font-size: 0.9375rem;
}

.footer-inner { padding-block: 2.5rem 3rem; }

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
}
.footer-nav a {
  display: inline-block;
  padding: 0.35rem 0;
  color: var(--op-cream);
}
.footer-nav a:hover { color: var(--op-pitch); }
.footer-nav a[aria-current="page"] { color: var(--op-pitch); }

.footer-contact { margin: 0 0 1rem; }
.footer-contact a { color: var(--op-pitch); }

.footer-legal {
  margin: 0;
  max-width: 48rem;
  font-size: 0.8125rem;
  line-height: 1.55;
}

/* ------------------------------------------------------------ print */

@media print {
  .site-header nav,
  .site-footer nav,
  .skip-link,
  .toc { display: none; }
  .site-header { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .site-footer { background: none; color: #000; border: 0; }
  body, html { background: #fff; color: #000; }
  a { color: #000; }
}