/* ================================================================
   Guides fiscaux VraiTaxe RDC - feuille de style partagée
   Pages de contenu statiques (SEO). Couleurs drapeau RDC.
   ================================================================ */
:root {
  --blue: #004E98; --blue-dk: #003b76; --red: #CE1126; --gold: #FFD700; --gold-dk: #c8821a;
  --ink: #15191e; --muted: #5b6470; --line: #dbe0e6; --chip: #eef1f5; --bg: #f6f7f9; --surface: #fff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif; line-height: 1.7; font-size: 16.5px;
}
a { color: var(--blue); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--blue-dk); }
:focus-visible { outline: 3px solid var(--gold-dk); outline-offset: 2px; border-radius: 4px; }

/* Bande drapeau */
.flag-strip { display: flex; height: 4px; }
.flag-strip span { flex: 1; }
.flag-strip span:nth-child(1) { background: var(--blue); }
.flag-strip span:nth-child(2) { background: var(--red); }
.flag-strip span:nth-child(3) { background: var(--gold); }

/* Header */
header.site {
  background: var(--surface); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.header-in { max-width: 820px; margin: 0 auto; padding: 13px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.brand .logo { width: 34px; height: 34px; border-radius: 4px; background: var(--blue); color: var(--gold); display: grid; place-items: center; font-weight: 800; font-family: 'Raleway', sans-serif; font-size: 14px; }
.brand b { font-family: 'Raleway', sans-serif; font-weight: 800; font-size: 17px; color: var(--blue); }
.brand b span { color: var(--gold-dk); }
.cta-top { background: var(--gold); color: #14110d; padding: 9px 15px; border-radius: 4px; font-weight: 700; font-size: 13.5px; text-decoration: none; white-space: nowrap; }
.cta-top:hover { background: #e8c200; color: #14110d; }

/* Article */
main.article { max-width: 820px; margin: 0 auto; padding: 26px 20px 60px; }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--muted); }
.kicker { display: inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: var(--blue); border-bottom: 2px solid var(--gold); padding-bottom: 5px; margin-bottom: 16px; }
h1 { font-family: 'Raleway', sans-serif; font-weight: 800; font-size: clamp(27px, 5vw, 40px); line-height: 1.18; color: var(--blue); margin: 0 0 14px; }
.lead { font-size: 18px; color: var(--muted); margin: 0 0 8px; }
.updated { font-size: 12.5px; color: var(--muted); margin-bottom: 26px; }
h2 { font-family: 'Raleway', sans-serif; font-weight: 800; font-size: 24px; color: var(--blue); margin: 38px 0 12px; padding-top: 8px; }
h3 { font-family: 'Raleway', sans-serif; font-weight: 700; font-size: 18.5px; color: var(--ink); margin: 26px 0 8px; }
p { margin: 0 0 15px; }
ul, ol { margin: 0 0 16px; padding-left: 22px; }
li { margin-bottom: 7px; }
strong { color: var(--ink); }
.mono { font-family: 'JetBrains Mono', monospace; font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; font-weight: 600; color: var(--blue); }

/* Tableaux */
.table-wrap { overflow-x: auto; margin: 0 0 20px; border: 1px solid var(--line); border-radius: 4px; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 460px; }
th, td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line); }
thead th { background: var(--blue); color: #fff; font-family: 'Raleway', sans-serif; font-weight: 700; font-size: 13px; }
tbody tr:nth-child(even) { background: var(--chip); }
td.num { font-family: 'JetBrains Mono', monospace; font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; color: var(--blue); white-space: nowrap; }

/* Encadrés */
.callout { display: flex; gap: 12px; padding: 15px 17px; border-radius: 4px; margin: 0 0 20px; font-size: 15px; line-height: 1.6; }
.callout .ic { flex-shrink: 0; font-size: 20px; line-height: 1.4; }
.callout.info { background: var(--chip); border-left: 4px solid var(--blue); }
.callout.warn { background: #fdf6e3; border-left: 4px solid var(--gold-dk); color: #6b4e12; }
.callout.tip  { background: #e9f5ef; border-left: 4px solid #00a651; }

/* CTA bloc */
.cta-block { background: var(--blue); border-left: 5px solid var(--gold); border-radius: 12px; padding: 24px 22px; margin: 34px 0; color: #fff; }
.cta-block h2 { color: #fff; margin: 0 0 8px; font-size: 21px; padding: 0; }
.cta-block p { color: rgba(255,255,255,.85); margin: 0 0 16px; }
.cta-block a.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--gold); color: #14110d; padding: 12px 22px; border-radius: 4px; font-weight: 700; text-decoration: none; font-size: 15px; }
.cta-block a.btn:hover { background: #e8c200; }

/* FAQ */
.faq { border: 1px solid var(--line); border-radius: 4px; background: var(--surface); overflow: hidden; margin-bottom: 20px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: none; }
.faq summary { cursor: pointer; padding: 15px 17px; font-weight: 600; color: var(--ink); font-family: 'Raleway', sans-serif; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--blue); font-weight: 800; }
.faq details[open] summary::after { content: "-"; }
.faq .ans { padding: 0 17px 15px; color: var(--muted); font-size: 15px; }

/* Liens connexes */
.related { margin: 34px 0 0; }
.related h2 { font-size: 20px; }
.related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.related-grid a { display: block; padding: 14px 16px; background: var(--surface); border: 1px solid var(--line); border-radius: 4px; text-decoration: none; color: var(--ink); font-weight: 600; font-size: 15px; transition: border-color 120ms; }
.related-grid a:hover { border-color: var(--blue); }
.related-grid a span { display: block; font-weight: 400; font-size: 13px; color: var(--muted); margin-top: 3px; }

/* Footer */
footer.site { border-top: 1px solid var(--line); background: var(--surface); }
.footer-in { max-width: 820px; margin: 0 auto; padding: 22px 20px; font-size: 12.5px; color: var(--muted); line-height: 1.6; }
.footer-in a { color: var(--muted); }
.disclaimer { display: flex; gap: 9px; padding: 13px 15px; background: var(--chip); border-radius: 4px; font-size: 12.5px; color: var(--muted); margin-top: 14px; line-height: 1.55; }

@media (max-width: 560px) {
  .related-grid { grid-template-columns: 1fr; }
  body { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }