/* ============================================================
   FOUNDER FINANCIAL INFRASTRUCTURE STANDARD
   Institutional Design System — style.css
   ffistandard.org
   ============================================================ */

/* --- GOOGLE FONTS --- */
@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,500;0,8..60,600;0,8..60,700;1,8..60,400;1,8..60,500&family=IBM+Plex+Mono:wght@300;400;500&display=swap');

/* --- CSS CUSTOM PROPERTIES --- */
:root {
  /* Colour – pure paper white, cool greys, deep navy */
  --color-primary:     #1A365D;
  --color-primary-dk:  #0F2244;
  --color-bg:          #FFFFFF;        /* pure paper white */
  --color-surface:     #F4F6F8;        /* cool light grey, modern and financial */
  --color-border:      #D0D4D8;        /* cooler, cleaner border */
  --color-text:        #1A1A18;
  --color-muted:       #5A5A5A;        /* darker, more readable muted */
  --color-footer:      #FFFFFF;        /* used on dark navy backgrounds */

  /* Typography */
  --font-serif: 'Source Serif 4', 'Georgia', 'Times New Roman', serif;
  --font-mono:  'IBM Plex Mono', 'Courier New', monospace;

  /* Layout – stretched for institutional presence */
  --container-width: 1100px;
  --spacing-section: 5rem;
}

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 19px;               /* slightly larger body */
  font-weight: 420;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.page-wrapper {
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;               /* tighter side padding = wider text block */
  width: 100%;
}

.main-content {
  flex: 1;
  padding-top: 5rem;
  padding-bottom: 4rem;
}

/* ============================================================
   NAVIGATION – navy, white, anchored
   ============================================================ */
.nav {
  width: 100%;
  background-color: var(--color-primary);
  position: static;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: 3rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo img,
.nav-logo svg {
  height: 56px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #FFFFFF;                  /* pure white */
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: #C8D6E5;                 /* light blue-grey, visible change */
  text-decoration: none;
}

.nav-link.active {
  color: #FFFFFF;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-text);
  margin: 0;
}

h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.18;
  margin-bottom: 2rem;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1.25rem;
  margin-top: 3.5rem;
  letter-spacing: -0.005em;
}

h3 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 1rem;
  margin-top: 2.5rem;
}

h4 {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 0.75rem;
  margin-top: 2rem;
}

p {
  margin: 0 0 1.75rem 0;
  color: var(--color-text);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-bg);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:visited {
  color: var(--color-bg);
}

/* ============================================================
   TYPOGRAPHIC COMPONENTS
   ============================================================ */
.page-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.deck {
  font-size: 22px;
  font-style: italic;
  font-weight: 420;
  color: var(--color-muted);
  line-height: 1.65;
  margin-bottom: 3rem;
  margin-top: 0;
}

.small-text {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--color-muted);
  letter-spacing: 0.06em;
  display: block;
  margin-top: 0.75rem;
}

/* ============================================================
   HORIZONTAL RULE
   ============================================================ */
hr,
.section-rule {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 4rem 0;
}

/* ============================================================
   INSET BLOCK
   ============================================================ */
.inset-block {
  border-left: 4px solid var(--color-primary);
  padding-left: 1.75rem;
  margin: 2rem 0;
  background-color: var(--color-surface);
  padding: 1.25rem 1.75rem;
}

.inset-block p {
  margin-bottom: 1.25rem;
}

.inset-block p:last-child {
  margin-bottom: 0;
}

.inset-block strong {
  display: block;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

/* ============================================================
   CITABLE URL BLOCK
   ============================================================ */
.cite-block {
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-border);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.8;
  word-break: break-all;
}

/* ============================================================
   CONTACT BLOCK
   ============================================================ */
.contact-block {
  font-family: var(--font-mono);
  font-size: 15px;
  background-color: var(--color-surface);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  display: inline-block;
}

/* ============================================================
   DOWNLOAD LINK
   ============================================================ */
.download-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  text-decoration: none;
  margin: 0.75rem 0;
}

.download-link::before {
  content: '\2193\0020';
  font-size: 14px;
}

.download-link:hover {
  text-decoration: underline;
}

/* ============================================================
   BOOK NAVIGATION
   ============================================================ */
.book-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 2px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 13px;
}

.book-nav a {
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
}

.book-nav a:hover {
  text-decoration: underline;
}

.book-nav .book-nav-prev::before {
  content: '\2190\0020';
}

.book-nav .book-nav-next::after {
  content: '\0020\2192';
}

/* ============================================================
   BOOK REFERENCE
   ============================================================ */
.book-ref {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 0.75rem;
}

/* ============================================================
   RELATED TERMS
   ============================================================ */
.related-terms {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}

.related-terms span {
  color: var(--color-muted);
  margin: 0 0.6rem;
}

/* ============================================================
   GLOSSARY INDEX LIST
   ============================================================ */
.glossary-index {
  list-style: none;
  margin: 0;
  padding: 0;
}

.glossary-section-letter {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary);
}

.glossary-index li {
  margin-bottom: 0.6rem;
}

.glossary-index a {
  color: var(--color-primary);
  font-size: 17px;
  text-decoration: none;
}

.glossary-index a:hover {
  text-decoration: underline;
}

/* ============================================================
   TABLES
   ============================================================ */
.table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text);
  text-align: left;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--color-border);
  border-bottom: 2px solid var(--color-primary);
  background-color: var(--color-surface);
}

td {
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--color-border);
  vertical-align: top;
  line-height: 1.7;
  font-size: 15px;
}

td:first-child {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 14px;
}

/* ============================================================
   PARTNER CARD
   ============================================================ */
.partner-card {
  border: 1px solid var(--color-border);
  padding: 2rem;
  margin: 2.5rem 0;
  background-color: var(--color-surface);
}

.partner-card-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 1rem;
  display: block;
}

.partner-card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

/* ============================================================
   SECONDARY LINK
   ============================================================ */
.secondary-link {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--color-primary);
  text-decoration: none;
  margin-top: 0.75rem;
}

.secondary-link:hover {
  text-decoration: underline;
}

/* ============================================================
   VERSION ENTRY
   ============================================================ */
.version-entry {
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
}

.version-entry:last-child {
  border-bottom: none;
}

.version-number {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.1em;
}

.version-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  display: block;
  margin-top: 0.35rem;
  margin-bottom: 1.25rem;
}

/* ============================================================
   FOOTER – navy, white, anchored
   ============================================================ */
.footer {
  margin-top: 7rem;
  background-color: var(--color-primary);
  padding: 3.5rem 0 2.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col-heading {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 1.25rem;
  display: block;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.footer-links a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-attribution {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.04em;
}

.footer-attribution a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
}

.footer-attribution a:hover {
  text-decoration: underline;
  color: #FFFFFF;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-social a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  display: flex;
  align-items: center;
  transition: color 0.15s ease;
}

.footer-social a:hover {
  color: #FFFFFF;
}

.footer-social svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

/* ============================================================
   404 PAGE
   ============================================================ */
.error-page {
  padding-top: 6rem;
}

.error-page .page-label {
  font-size: 14px;
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  letter-spacing: 0.06em;
}

.breadcrumb-item a {
  color: var(--color-muted);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--color-border);
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 500;
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  .nav,
  .footer,
  .book-nav,
  .download-link {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  h1 { font-size: 24pt; }
  h2 { font-size: 18pt; }
  h3 { font-size: 14pt; }

  a {
    color: #000;
    text-decoration: none;
  }

  .inset-block {
    border-left: 2px solid #000;
  }

  table th,
  table td {
    border-color: #000;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE (max-width 768px)
   ============================================================ */
@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .container {
    padding: 0 1.25rem;
  }

  h1 {
    font-size: 32px;
  }

  h2 {
    font-size: 23px;
    margin-top: 2.5rem;
  }

  h3 {
    font-size: 18px;
    margin-top: 2rem;
  }

  .deck {
    font-size: 18px;
  }

  .nav .container {
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
    gap: 1rem;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
  }

  .nav-link {
    font-size: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .book-nav {
    flex-direction: column;
    gap: 1.25rem;
    align-items: flex-start;
  }

  .table-wrapper {
    font-size: 13px;
  }
}
/* ============================================================
   FIX — Restore visible glossary and body‑link colour
   ============================================================ */
.main-content a,
.main-content a:link,
.main-content a:visited {
  color: var(--color-primary) !important;   /* institutional navy #1A365D */
}

.main-content a:hover {
  color: var(--color-primary-dk) !important; /* darker navy #0F2244 */
  text-decoration: underline;
}