/* ---------------------------------------------------------------------------
   Styles des pages de contenu statiques (guides / comparatifs).
   Volontairement autonome : ces pages sont servies sans JavaScript et sans le
   bundle de l'application, pour rester rapides (Core Web Vitals) et crawlables.
   --------------------------------------------------------------------------- */

:root {
  --brand: #1e3a8a;
  --brand-600: #2a489b;
  --brand-soft: #eef2fb;
  --brand-line: #d9e2f6;
  --gold: #c09a2e;
  --ink: #141a29;
  --ink-600: #4b5470;
  --ink-400: #66708e;
  --line: #e5e8f0;
  --soft: #f6f7fb;
  --ok: #0e9f6e;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #ffffff;
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--brand-600);
}

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

/* ── En-tête ─────────────────────────────────────────────────────────────── */
.c-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.c-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
}

.c-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.c-logo__mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.6rem;
  background: linear-gradient(135deg, #1e3a8a, #0f1f4b);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
}

.c-logo__tag {
  display: none;
  color: var(--ink-400);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0;
}

.c-nav {
  display: none;
  gap: 1.15rem;
  font-size: 0.9rem;
}

.c-nav a {
  color: var(--ink-600);
  text-decoration: none;
}

.c-nav a:hover,
.c-nav a[aria-current='page'] {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.c-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.c-header__login {
  display: none;
  color: var(--ink-600);
  font-size: 0.9rem;
  text-decoration: none;
}

.c-btn {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border-radius: 0.8rem;
  background: linear-gradient(135deg, #1e3a8a, #0f1f4b);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.c-btn:hover {
  filter: brightness(1.12);
}

.c-btn--light {
  background: #ffffff;
  color: var(--brand);
}

@media (min-width: 768px) {
  .c-nav,
  .c-header__login,
  .c-logo__tag {
    display: inline-flex;
  }
}

/* ── Fil d'Ariane ────────────────────────────────────────────────────────── */
.c-breadcrumb {
  max-width: 46rem;
  margin: 0 auto;
  padding: 1rem 1.25rem 0;
  color: var(--ink-400);
  font-size: 0.8rem;
}

.c-breadcrumb a {
  color: var(--ink-400);
  text-decoration: none;
}

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

.c-breadcrumb span[aria-hidden] {
  margin: 0 0.35rem;
}

/* ── Article ─────────────────────────────────────────────────────────────── */
.c-main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 1rem;
}

.c-kicker {
  margin: 0 0 0.5rem;
  color: var(--brand-600);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.c-main h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.85rem, 4.2vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.c-meta {
  margin: 0 0 1.5rem;
  color: var(--ink-400);
  font-size: 0.85rem;
}

.c-lead {
  margin: 0 0 1.5rem;
  font-size: 1.1rem;
  color: var(--ink-600);
}

.c-resume {
  margin: 0 0 2rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--brand-line);
  border-radius: 1rem;
  background: var(--brand-soft);
}

.c-resume strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--brand);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.c-resume p {
  margin: 0;
  font-size: 0.98rem;
}

.c-toc {
  margin: 0 0 2rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--soft);
  font-size: 0.92rem;
}

.c-toc p {
  margin: 0 0 0.5rem;
  color: var(--ink-600);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.c-toc ol {
  margin: 0;
  padding-left: 1.2rem;
}

.c-toc li {
  margin: 0.25rem 0;
}

.c-main h2 {
  margin: 2.75rem 0 0.75rem;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
  scroll-margin-top: 5rem;
}

.c-main h3 {
  margin: 1.75rem 0 0.5rem;
  font-size: 1.1rem;
}

.c-main p,
.c-main ul,
.c-main ol {
  margin: 0.75rem 0;
}

.c-main ul,
.c-main ol {
  padding-left: 1.35rem;
}

.c-main li {
  margin: 0.35rem 0;
}

.c-note {
  margin: 1.5rem 0;
  padding: 1rem 1.15rem;
  border-left: 4px solid var(--brand);
  border-radius: 0.5rem;
  background: var(--soft);
  font-size: 0.95rem;
}

.c-note--warn {
  border-left-color: var(--gold);
}

.c-table-wrap {
  margin: 1.5rem 0;
  overflow-x: auto;
}

.c-main table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.c-main th,
.c-main td {
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.c-main th {
  background: var(--soft);
  font-weight: 700;
}

.c-formula {
  margin: 1rem 0;
  padding: 0.9rem 1.1rem;
  border: 1px dashed var(--brand-line);
  border-radius: 0.75rem;
  background: #fbfcff;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88rem;
  overflow-x: auto;
}

/* ── FAQ ─────────────────────────────────────────────────────────────────── */
.c-faq {
  margin: 3rem 0 0;
}

.c-faq h2 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.c-faq details {
  margin-bottom: 0.6rem;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  background: #fff;
}

.c-faq summary {
  color: var(--ink);
  font-weight: 600;
  cursor: pointer;
}

.c-faq details p {
  margin: 0.6rem 0 0;
  color: var(--ink-600);
  font-size: 0.95rem;
}

/* ── CTA + maillage ──────────────────────────────────────────────────────── */
.c-cta {
  margin: 3rem 0;
  padding: 1.75rem;
  border-radius: 1.25rem;
  background: linear-gradient(135deg, #0f1f4b 0%, #1e3a8a 100%);
  color: #ffffff;
}

.c-cta h2 {
  margin: 0 0 0.5rem;
  color: #ffffff;
  font-size: 1.35rem;
}

.c-cta p {
  margin: 0 0 1.25rem;
  color: #d9e2f6;
  font-size: 0.95rem;
}

.c-related {
  margin: 2rem 0 3rem;
}

.c-related h2 {
  margin: 0 0 1rem;
  font-size: 1.35rem;
}

.c-related__grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.c-related a {
  display: block;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.c-related a:hover {
  border-color: var(--brand-line);
  transform: translateY(-2px);
}

.c-related strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--brand);
  font-size: 0.95rem;
}

.c-related span {
  color: var(--ink-400);
  font-size: 0.85rem;
}

/* ── Pied de page ────────────────────────────────────────────────────────── */
.c-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  background: var(--soft);
  color: var(--ink-400);
  font-size: 0.85rem;
}

.c-footer__inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

.c-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 1rem;
}

.c-footer a {
  color: var(--ink-600);
  text-decoration: none;
}

.c-footer a:hover {
  color: var(--brand);
  text-decoration: underline;
}