/**
 * Front-end styles for rebuilt pages and the site footer.
 * Tokens match Real Percentage Calculator Core. Scoped under .rpc-site and .rpc-site-footer.
 */
:root {
  --rpc-color-primary: #2563eb;
  --rpc-color-primary-hover: #1d4ed8;
  --rpc-color-secondary: #172554;
  --rpc-color-bg: #f8fafc;
  --rpc-color-card: #ffffff;
  --rpc-color-text: #172033;
  --rpc-color-muted: #64748b;
  --rpc-color-success: #16a34a;
  --rpc-color-border: #e2e8f0;
  --rpc-radius: 14px;
  --rpc-font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.rpc-site,
.rpc-site-footer {
  font-family: var(--rpc-font);
  color: var(--rpc-color-text);
  line-height: 1.6;
}

.rpc-site {
  max-width: 52rem;
  margin: 0 auto;
  padding: 0.5rem 0 2.5rem;
}

.rpc-site .rank-math-breadcrumb,
.rpc-site .rpc-breadcrumb {
  font-size: 0.875rem;
  color: var(--rpc-color-muted);
  margin: 0 0 1rem;
}

.rpc-site h1,
.rpc-site h2,
.rpc-site h3 {
  color: var(--rpc-color-secondary);
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.rpc-site h1 {
  font-size: 2rem;
  margin: 0 0 0.75rem;
}

.rpc-site h2 {
  font-size: 1.35rem;
  margin: 2rem 0 0.7rem;
}

.rpc-site h3 {
  font-size: 1.1rem;
  margin: 1.25rem 0 0.4rem;
}

.rpc-site p,
.rpc-site li {
  color: var(--rpc-color-text);
}

.rpc-site .rpc-lead {
  font-size: 1.075rem;
  color: var(--rpc-color-muted);
  margin: 0 0 1.25rem;
}

.rpc-site-hero {
  padding: 0.5rem 0 0.25rem;
}

.rpc-site-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .rpc-site-cards {
    grid-template-columns: 1fr 1fr;
  }
  .rpc-site-cards--3 {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.rpc-site-card {
  display: block;
  background: var(--rpc-color-card);
  border: 1px solid var(--rpc-color-border);
  border-radius: var(--rpc-radius);
  padding: 1rem 1.05rem 1.05rem;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

a.rpc-site-card:hover,
a.rpc-site-card:focus-visible {
  border-color: #bfdbfe;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.08);
}

.rpc-site-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.rpc-site-card p {
  margin: 0;
  color: var(--rpc-color-muted);
  font-size: 0.925rem;
}

.rpc-site-card__go {
  display: inline-block;
  margin-top: 0.55rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--rpc-color-primary);
}

.rpc-site-formula,
.rpc-site-example,
.rpc-site-note {
  background: var(--rpc-color-bg);
  border: 1px solid var(--rpc-color-border);
  border-radius: var(--rpc-radius);
  padding: 0.9rem 1rem;
  margin: 0.75rem 0 1rem;
}

.rpc-site-formula {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--rpc-color-secondary);
}

.rpc-site details.rpc-site-faq {
  border: 1px solid var(--rpc-color-border);
  border-radius: 12px;
  background: var(--rpc-color-card);
  padding: 0.7rem 0.95rem;
  margin: 0.45rem 0;
}

.rpc-site details.rpc-site-faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--rpc-color-secondary);
}

.rpc-site details.rpc-site-faq p {
  margin: 0.55rem 0 0.2rem;
}

.rpc-site-related {
  display: grid;
  gap: 0.35rem;
  margin: 0.5rem 0 0;
  padding-left: 1.15rem;
}

.rpc-site-footer {
  background: #172554;
  color: #e2e8f0;
  padding: 2.25rem 1.15rem 1.5rem;
  margin-top: 0;
}

.rpc-site-footer a {
  color: #bfdbfe;
  text-decoration: none;
}

.rpc-site-footer a:hover,
.rpc-site-footer a:focus-visible {
  color: #ffffff;
  text-decoration: underline;
}

.rpc-site-footer__inner {
  max-width: 68rem;
  margin: 0 auto;
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .rpc-site-footer__inner {
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
  }
}

.rpc-site-footer h2 {
  color: #ffffff;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.65rem;
}

.rpc-site-footer p,
.rpc-site-footer li {
  font-size: 0.9rem;
  line-height: 1.55;
  color: #cbd5e1;
}

.rpc-site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.rpc-site-footer li + li {
  margin-top: 0.3rem;
}

.rpc-site-footer__brand p {
  margin: 0.35rem 0 0;
}

.rpc-site-footer__copy {
  max-width: 68rem;
  margin: 1.5rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(226, 232, 240, 0.15);
  font-size: 0.8rem;
  color: #94a3b8;
}

body.rpc-custom-footer .site-footer,
body.rpc-custom-footer #colophon {
  display: none;
}

.rpc-site :focus-visible {
  outline: 2px solid var(--rpc-color-primary);
  outline-offset: 2px;
}

/* -------------------------------------------------------------------------
   Plugin header (replaces Astra #masthead when body.rpc-custom-header)
   ------------------------------------------------------------------------- */

body.rpc-custom-header #masthead,
body.rpc-custom-header .main-header-bar,
body.rpc-custom-header .ast-mobile-header-wrap,
body.rpc-custom-header .ast-desktop-header-content,
body.rpc-custom-header .ast-mobile-header-content {
  display: none !important;
}

body.rpc-builder-chrome .ast-breadcrumbs-wrapper,
body.rpc-builder-chrome .ast-breadcrumbs,
body.rpc-builder-chrome #ast-breadcrumbs-wrap,
body.rpc-builder-chrome .ast-breadcrumbs-container,
body.rpc-builder-chrome nav.ast-breadcrumbs-nav,
body.rpc-builder-chrome .ast-default-breadcrumb,
body.rpc-builder-chrome .ast-breadcrumbs-inner {
  display: none !important;
}

.rpc-skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3.5rem;
  z-index: 10000;
  background: #172554;
  color: #fff;
  padding: 0.5rem 0.85rem;
  border-radius: 0 0 8px 8px;
  text-decoration: none;
}
.rpc-skip-link:focus {
  top: 0;
}

.rpc-site-header {
  font-family: var(--rpc-font);
  background: #ffffff;
  border-bottom: 1px solid var(--rpc-color-border);
  color: var(--rpc-color-text);
  position: relative;
  z-index: 200;
}

.rpc-site-header__inner {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0.7rem 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.rpc-site-header__logo {
  font-weight: 700;
  color: var(--rpc-color-secondary);
  text-decoration: none;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  margin-right: auto;
  line-height: 1.3;
}

.rpc-site-header__logo:hover,
.rpc-site-header__logo:focus-visible {
  color: var(--rpc-color-primary);
}

.rpc-site-header__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: auto;
  background: #fff;
  border: 1px solid var(--rpc-color-border);
  border-radius: 10px;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  color: var(--rpc-color-secondary);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
}

.rpc-site-header__toggle:focus-visible {
  outline: 2px solid var(--rpc-color-primary);
  outline-offset: 2px;
}

.rpc-site-header__toggle-bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 18px;
}

.rpc-site-header__toggle-bars span {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

.rpc-site-header__nav {
  width: 100%;
}

.rpc-site-header__list,
.rpc-site-header__sublist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.rpc-site-header__list a {
  display: block;
  color: var(--rpc-color-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.55rem 0.15rem;
}

.rpc-site-header__list a:hover,
.rpc-site-header__list a:focus-visible {
  color: var(--rpc-color-primary);
}

.rpc-site-header__has-children {
  position: relative;
}

.rpc-site-header__has-children > a {
  display: inline-block;
  padding-right: 0.25rem;
}

.rpc-site-header__subtoggle {
  background: transparent;
  border: 0;
  padding: 0.35rem 0.45rem;
  cursor: pointer;
  color: var(--rpc-color-secondary);
  font: inherit;
  vertical-align: middle;
}

.rpc-site-header__subtoggle:focus-visible {
  outline: 2px solid var(--rpc-color-primary);
  outline-offset: 2px;
}

.rpc-site-header__sublist a {
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.4rem 0.75rem;
}

.rpc-site-header [hidden] {
  display: none !important;
}

/* Mobile (includes 400px): hamburger, stacked nav, closed unless .is-open */
@media (max-width: 768px) {
  .rpc-site-header__nav:not(.is-open) {
    display: none;
  }

  .rpc-site-header__nav.is-open {
    display: block;
    padding: 0.25rem 0 0.5rem;
    border-top: 1px solid var(--rpc-color-border);
  }

  .rpc-site-header__sub {
    display: none;
    padding: 0 0 0.35rem 0.85rem;
  }

  .rpc-site-header__has-children.is-open > .rpc-site-header__sub {
    display: block;
  }
}

/* Desktop: inline nav, hover/focus-within dropdowns, no hamburger */
@media (min-width: 769px) {
  .rpc-site-header__toggle {
    display: none;
  }

  .rpc-site-header__inner {
    flex-wrap: nowrap;
  }

  .rpc-site-header__nav,
  .rpc-site-header__nav[hidden] {
    display: block !important;
    width: auto;
    flex: 1;
  }

  .rpc-site-header__list {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.15rem 1rem;
  }

  .rpc-site-header__list > li > a {
    padding: 0.35rem 0;
  }

  .rpc-site-header__sub {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 16rem;
    background: #fff;
    border: 1px solid var(--rpc-color-border);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    padding: 0.4rem 0;
    z-index: 20;
  }

  .rpc-site-header__has-children:hover > .rpc-site-header__sub,
  .rpc-site-header__has-children:focus-within > .rpc-site-header__sub,
  .rpc-site-header__has-children.is-open > .rpc-site-header__sub {
    display: block;
  }
}

.rpc-site-header .screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.rpc-site-updated { color: #64748b; font-size: 0.9rem; margin: 0 0 1rem; }
.rpc-site-answer { background: #eff6ff; border-left: 4px solid #2563EB; padding: 0.85rem 1rem; border-radius: 0 12px 12px 0; margin: 0 0 1.25rem; color: #172033; }
.rpc-site-takeaways { background: #fff; border: 1px solid #E2E8F0; border-radius: 16px; padding: 1rem 1.15rem; margin: 1.25rem 0; }
.rpc-site-takeaways h2 { margin: 0 0 0.5rem; font-size: 1.15rem; color: #172554; }
.rpc-site-takeaways ul { margin: 0; padding-left: 1.15rem; }
.rpc-site-takeaways li + li { margin-top: 0.3rem; }
.rpc-site-table-wrap { margin: 1.25rem 0; overflow-x: auto; }
.rpc-site-table-wrap figcaption { font-weight: 600; margin-bottom: 0.4rem; color: #172554; }
.rpc-site-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid #E2E8F0; border-radius: 12px; overflow: hidden; font-size: 0.95rem; }
.rpc-site-table th, .rpc-site-table td { padding: 0.55rem 0.7rem; border-bottom: 1px solid #E2E8F0; text-align: left; }
.rpc-site-table thead th { background: #F8FAFC; color: #172554; font-weight: 700; }
.rpc-tools-index { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); gap: 0.85rem; margin: 1rem 0 2rem; }
.rpc-tools-index a { display: block; background: #fff; border: 1px solid #E2E8F0; border-radius: 16px; padding: 1rem 1.1rem; text-decoration: none; color: inherit; }
.rpc-tools-index a:hover, .rpc-tools-index a:focus { border-color: #2563EB; box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
.rpc-tools-index h3 { margin: 0 0 0.35rem; font-size: 1.05rem; color: #172554; }
.rpc-tools-index p { margin: 0; color: #64748B; font-size: 0.92rem; }