/* ============================================================
   OPSET : feuille de style des pages « solution » du site public
   Reprend la charte de index.html (variables, typographies, boutons,
   pied de page sombre). Aucune dépendance JS : tout le contenu est
   visible sans JavaScript.
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue: #0047FF;
  --blue-dark: #0035CC;
  --blue-light: #EEF3FF;
  --black: #0A0A0F;
  --gray-900: #111118;
  --gray-600: #4A4A5A;
  --gray-400: #8888A0;
  --gray-200: #E8E8F0;
  --gray-100: #F5F5FA;
  --white: #FFFFFF;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 1px 4px rgba(0,0,0,.04);
  --shadow-blue: 0 8px 32px rgba(0,71,255,.25);
}

html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: 'Inter', sans-serif;
  color: var(--black);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: 'Montserrat', sans-serif; line-height: 1.2; letter-spacing: -.02em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
/* Icônes SVG (sprite inline, tracés Font Awesome Free, CC BY 4.0) : même taille et même alignement que l'ancienne police d'icônes, couleur héritée du texte */
.ico { display: inline-block; height: 1em; overflow: visible; vertical-align: -.125em; fill: currentColor; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 40px; }
.narrow { max-width: 820px; }

/* ===== EN-TÊTE (variante sombre, même charte que l'accueil) =====
   Fond bleu nuit #05081A, liens clairs, bouton bleu OPSET. Le corps des pages reste clair
   pour la lecture ; seuls l'en-tête, le bandeau d'appel à l'action et le pied de page sont sombres ou bleus. */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(5,8,26,.9);
  backdrop-filter: saturate(160%) blur(16px); -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-header nav { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.site-header .logo img { display: block; width: auto; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-links a {
  padding: 8px 12px; border-radius: 999px;
  font-size: .9rem; font-weight: 500; color: rgba(255,255,255,.82); transition: all .15s;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { background: rgba(255,255,255,.08); color: #fff; }
.site-header .btn-primary { background: linear-gradient(180deg, #4A86FF 0%, #0047FF 60%, #0039D6 100%); box-shadow: inset 0 1px 0 rgba(255,255,255,.3), 0 10px 28px -10px rgba(0,71,255,.9); }
.site-header :focus-visible { outline: 2px solid #9FDDF8; outline-offset: 3px; }

/* ===== BOUTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif; font-size: .9375rem; font-weight: 600;
  cursor: pointer; border: none; transition: all .2s ease; white-space: nowrap;
}
.btn-primary { background: var(--blue); color: var(--white); box-shadow: var(--shadow-blue); }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }
.btn-secondary { background: var(--white); color: var(--black); border: 1.5px solid var(--gray-200); box-shadow: var(--shadow-sm); }
.btn-secondary:hover { background: var(--gray-100); border-color: var(--gray-400); }
.btn-white { background: var(--white); color: var(--blue); font-weight: 700; box-shadow: 0 8px 32px rgba(0,0,0,.15); }
.btn-white:hover { background: var(--gray-100); }
.btn-sm { padding: 10px 18px; font-size: .875rem; }

/* ===== FIL D'ARIANE ===== */
.breadcrumb { padding: 22px 0 0; font-size: .82rem; color: var(--gray-400); }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumb li + li::before { content: '›'; margin-right: 6px; color: var(--gray-400); }
.breadcrumb a { color: var(--gray-600); }
.breadcrumb a:hover { color: var(--blue); }

/* ===== HERO ===== */
.page-hero { position: relative; overflow: hidden; padding: 40px 0 72px; }
.page-hero::before {
  content: ''; position: absolute; top: -220px; right: -220px; width: 640px; height: 640px;
  background: radial-gradient(ellipse at center, rgba(0,71,255,.09) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--blue); font-family: 'Montserrat', sans-serif;
  font-size: .8125rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  margin: 24px 0 14px;
}
.kicker::before { content: ''; width: 20px; height: 2px; background: var(--blue); border-radius: 2px; }
.page-hero h1 {
  font-size: clamp(2rem, 4.2vw, 3rem); font-weight: 900; letter-spacing: -.03em; line-height: 1.12;
  max-width: 860px; margin-bottom: 20px;
}
.page-hero h1 em { font-style: normal; color: var(--blue); }
.lead { font-size: 1.125rem; color: var(--gray-600); max-width: 760px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-proof { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px 26px; font-size: .875rem; color: var(--gray-600); }
.hero-proof span { display: inline-flex; align-items: center; gap: 8px; }
.hero-proof .ico { color: var(--blue); }

/* ===== SECTIONS ===== */
.section { padding: 72px 0; }
.section.alt { background: var(--gray-100); }
.section h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 800; letter-spacing: -.025em; margin-bottom: 16px; }
.section h3 { font-size: 1.1rem; font-weight: 700; margin: 26px 0 10px; }
.section p { color: var(--gray-600); font-size: 1.0625rem; margin-bottom: 16px; }
.section ul, .section ol { color: var(--gray-600); font-size: 1.0625rem; margin: 0 0 18px 22px; }
.section li { margin-bottom: 8px; }
.section strong { color: var(--black); }
.section a:not(.btn):not(.card-link) { color: var(--blue); }
.section a:not(.btn):not(.card-link):hover { text-decoration: underline; }
.answer {
  font-size: 1.125rem !important; color: var(--black) !important;
  border-left: 3px solid var(--blue); padding-left: 18px; max-width: 820px;
}

/* Grilles de cartes */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 26px; transition: all .2s ease;
}
.section:not(.alt) .card { background: var(--gray-100); }
.card .icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm); background: var(--blue-light); color: var(--blue);
  display: flex; align-items: center; justify-content: center; font-size: 1.05rem; margin-bottom: 14px;
}
.card h3 { margin: 0 0 8px; font-size: 1.02rem; }
.card p { font-size: .935rem; margin: 0; }
a.card-link { display: block; color: inherit; }
a.card-link:hover .card, a.card.card-link:hover { border-color: var(--blue); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; color: var(--blue); font-weight: 600; font-size: .9rem; }

/* Étapes */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.step { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 26px; }
.step::before {
  counter-increment: step; content: counter(step);
  width: 40px; height: 40px; border-radius: var(--radius-sm); background: var(--blue); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Montserrat', sans-serif; font-weight: 800; margin-bottom: 14px; box-shadow: var(--shadow-blue);
}
.step h3 { margin: 0 0 8px; font-size: 1.02rem; }
.step p { font-size: .935rem; margin: 0; }

/* Encadré */
.callout {
  background: var(--blue-light); border: 1px solid rgba(0,71,255,.15); border-radius: var(--radius-lg);
  padding: 22px 26px; margin: 26px 0;
}
.callout p:last-child { margin-bottom: 0; }

/* Aperçu d'étiquette (visuel CSS sobre, sans image) */
.label-demo {
  width: 280px; max-width: 100%; background: var(--white); color: #000;
  border: 1px solid var(--gray-200); border-radius: 10px; box-shadow: var(--shadow-md);
  padding: 14px 16px; display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto 1fr auto; gap: 6px 12px;
  font-family: 'Inter', sans-serif;
}
.label-demo .day { grid-row: 1 / 3; width: 58px; height: 58px; background: #000; color: #fff; display: flex; align-items: center; justify-content: center; font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 1.5rem; border-radius: 4px; }
.label-demo .prod { font-weight: 700; font-size: .9rem; }
.label-demo .dlc { font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 1.45rem; line-height: 1; }
.label-demo .foot { grid-column: 1 / 3; font-size: .72rem; border-top: 1px dashed #999; padding-top: 6px; }
.split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }

/* Tableau */
.table-wrap { overflow-x: auto; margin: 20px 0 24px; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--gray-200); vertical-align: top; }
th { font-family: 'Montserrat', sans-serif; font-size: .85rem; color: var(--black); background: var(--gray-100); }
td { color: var(--gray-600); }

/* FAQ */
.faq details {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-md);
  padding: 18px 22px; margin-bottom: 12px;
}
.section:not(.alt) .faq details { background: var(--gray-100); }
.faq summary { font-family: 'Montserrat', sans-serif; font-weight: 700; cursor: pointer; font-size: 1rem; color: var(--black); }
.faq details p { margin: 12px 0 0; font-size: 1rem; }

/* CTA */
.cta-band {
  color: var(--white); padding: 80px 0; text-align: center; position: relative; overflow: hidden;
  background: radial-gradient(55% 80% at 0% 0%, rgba(120,170,255,.5), transparent 70%), radial-gradient(50% 70% at 100% 100%, rgba(40,198,244,.45), transparent 70%), linear-gradient(150deg, #0047FF 0%, #0036D0 60%, #002699 100%);
}
.cta-band::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.16) 1px, transparent 1.4px); background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse at 20% 30%, #000, transparent 60%); mask-image: radial-gradient(ellipse at 20% 30%, #000, transparent 60%); opacity: .55;
}
.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 900; margin-bottom: 14px; color: var(--white); }
.cta-band p { color: rgba(255,255,255,.8); max-width: 560px; margin: 0 auto 28px; font-size: 1.0625rem; }
.cta-band .hero-actions { justify-content: center; }
.cta-band .cta-note { margin: 20px auto 0; font-size: .875rem; color: rgba(255,255,255,.75); }
.btn-outline-white { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,.4); }
.btn-outline-white:hover { background: rgba(255,255,255,.1); }

/* ===== PIED DE PAGE ===== */
.site-footer { background: #03050F; color: #B4BED8; padding: 64px 0 36px; font-size: .875rem; border-top: 1px solid rgba(255,255,255,.06); }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 32px; }
.footer-grid h3 { color: var(--white); font-size: .85rem; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 14px; }
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { color: #B4BED8; transition: color .15s; }
.footer-grid a:hover { color: var(--white); }
.footer-about p { margin-top: 14px; line-height: 1.6; max-width: 300px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 36px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: #95A1C0; font-size: .8rem; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .cards, .steps { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .nav-links { display: none; }
  .cards, .cards.two, .steps { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .page-hero { padding: 24px 0 56px; }
  .lead { font-size: 1.02rem; }
}
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { justify-content: center; width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .site-header .btn-sm { padding: 9px 12px; font-size: .8rem; }
  .site-header .logo img { height: 26px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  html { scroll-behavior: auto; }
}