/* === BCI Design System === */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@700;800&family=DM+Sans:wght@400;500;600;700&display=swap');

:root {
  --color-primary: #1F4E79;
  --color-accent: #2E75B6;
  --color-red: #C0392B;
  --color-red-light: #E74C3C;
  --color-dark: #0D1B2A;
  --color-dark-secondary: #1A2E42;
  --color-white: #FFFFFF;
  --color-off-white: #F4F7FB;
  --color-gray-light: #EBF3FB;
  --color-gray: #666666;
  --color-gray-border: #D1DCE8;
  --color-success: #27AE60;
  --color-warning: #D4652F;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --shadow-card: 0 4px 24px rgba(31,78,121,0.10);
  --shadow-card-hover: 0 8px 40px rgba(31,78,121,0.18);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body { font-family: var(--font-body); color: #333; line-height: 1.6; overflow-x: hidden; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* === HEADER === */
#header { position: sticky; top: 0; z-index: 100; background: var(--color-white); transition: box-shadow .3s; }
#header.scrolled { box-shadow: 0 2px 12px rgba(0,0,0,.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { height: 48px; }
.nav-desktop { display: flex; gap: 28px; }
.nav-desktop a { font-size: 14px; font-weight: 500; color: var(--color-gray); text-decoration: none; transition: color .2s; }
.nav-desktop a:hover { color: var(--color-primary); }
.hamburger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--color-dark); }
.mobile-menu { display: none; flex-direction: column; padding: 16px 24px; background: var(--color-white); border-top: 1px solid var(--color-gray-border); }
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 10px 0; color: var(--color-gray); text-decoration: none; font-size: 15px; }
@media(max-width:768px) {
  .nav-desktop { display: none; }
  .hamburger { display: flex; }
  .header-inner .btn-red { display: none; }
}

/* === BUTTONS === */
.btn-red { display: inline-block; background: var(--color-red); color: #fff; padding: 12px 28px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 14px; transition: transform .2s, background .2s; }
.btn-red:hover { background: var(--color-red-light); transform: translateY(-2px); }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { display: block; text-align: center; width: 100%; }
.btn-outline-white { display: inline-block; border: 2px solid rgba(255,255,255,.4); color: #fff; padding: 12px 28px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 14px; transition: background .2s; }
.btn-outline-white:hover { background: rgba(255,255,255,.1); }

/* === HERO === */
.hero { background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%); padding: 80px 0 60px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.hero-text h1 { font-family: var(--font-display); font-size: 3rem; font-weight: 800; color: #fff; line-height: 1.15; margin-bottom: 20px; }
.accent-underline { background: linear-gradient(90deg, var(--color-red), var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.badge-pill { display: inline-block; background: rgba(46,117,182,.2); color: var(--color-accent); border: 1px solid rgba(46,117,182,.4); padding: 6px 16px; border-radius: 20px; font-size: 13px; font-weight: 500; margin-bottom: 20px; }
.lead { font-size: 1.125rem; color: rgba(255,255,255,.8); margin-bottom: 28px; line-height: 1.7; }
.cta-group { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.mini-proof { font-size: 13px; color: rgba(255,255,255,.5); }
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; }
.mascotte-float { max-width: 380px; width: 100%; animation: float 4s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.floating-badge { position: absolute; padding: 6px 14px; border-radius: 8px; font-size: 12px; font-weight: 600; animation: fadeInUp .6s ease both; }
.fb1 { top: 10%; left: 0; background: rgba(39,174,96,.2); color: #27AE60; animation-delay: .2s; }
.fb2 { top: 30%; right: 0; background: rgba(192,57,43,.2); color: #C0392B; animation-delay: .4s; }
.fb3 { bottom: 30%; left: -5%; background: rgba(46,117,182,.2); color: #2E75B6; animation-delay: .6s; }
.fb4 { bottom: 10%; right: 5%; background: rgba(212,101,47,.2); color: #D4652F; animation-delay: .8s; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@media(max-width:768px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-text h1 { font-size: 2rem; }
  .cta-group { justify-content: center; }
  .hero-visual { margin-top: 32px; }
  .mascotte-float { max-width: 260px; }
  .floating-badge { display: none; }
}

/* === CHIFFRES === */
.chiffres { background: var(--color-primary); padding: 48px 0 40px; }
.chiffres-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.chiffre-number { font-family: var(--font-display); font-size: 2.5rem; font-weight: 800; color: #fff; display: block; }
.chiffre-label { font-size: 13px; color: rgba(255,255,255,.7); display: block; margin-top: 4px; }
.chiffres-source { text-align: center; font-size: 11px; color: rgba(255,255,255,.4); margin-top: 24px; }
@media(max-width:768px) { .chiffres-grid { grid-template-columns: repeat(2, 1fr); } }

/* === SECTIONS === */
.section-light { background: var(--color-off-white); padding: 80px 0; }
.section-white { background: var(--color-white); padding: 80px 0; }
.section-dark { background: var(--color-dark); padding: 80px 0; }
.section-cta { background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%); padding: 80px 0; }
.text-center { text-align: center; }
h2 { font-family: var(--font-display); font-size: 1.875rem; font-weight: 700; color: var(--color-primary); line-height: 1.3; margin-bottom: 16px; }
h2.white { color: #fff; }
.white-80 { color: rgba(255,255,255,.8) !important; }
.section-sub { font-size: 1.05rem; color: var(--color-gray); max-width: 680px; margin: 0 auto 40px; }
.badge-section { display: inline-block; background: var(--color-gray-light); color: var(--color-accent); padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin-bottom: 16px; }

/* === CARDS PROBLEME === */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.card-problem { background: #fff; border-radius: 16px; padding: 32px 24px; box-shadow: var(--shadow-card); transition: transform .2s, box-shadow .2s; }
.card-problem:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.card-icon { font-size: 32px; display: block; margin-bottom: 12px; }
.card-problem h3 { font-family: var(--font-display); font-size: 1.25rem; color: var(--color-primary); margin-bottom: 8px; }
.card-problem p { font-size: 14px; color: var(--color-gray); line-height: 1.6; }
@media(max-width:768px) { .cards-3 { grid-template-columns: 1fr; } }

/* === SOLUTION === */
.solution-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px; align-items: center; }
.solution-visual img { max-width: 100%; border-radius: 16px; }
.modules-list { margin-top: 28px; display: flex; flex-direction: column; gap: 16px; }
.module-item { display: flex; gap: 12px; align-items: flex-start; }
.module-dot { width: 10px; height: 10px; border-radius: 50%; margin-top: 7px; flex-shrink: 0; }
.module-dot.blue { background: var(--color-accent); }
.module-dot.red { background: var(--color-red); }
.module-dot.orange { background: var(--color-warning); }
.module-item div { font-size: 14px; color: var(--color-gray); line-height: 1.6; }
.module-item strong { color: var(--color-dark); }
.note-orange { background: rgba(212,101,47,.08); border-left: 4px solid var(--color-warning); padding: 16px 20px; border-radius: 0 8px 8px 0; margin-top: 28px; font-size: 14px; color: var(--color-gray); line-height: 1.6; }
@media(max-width:768px) { .solution-grid { grid-template-columns: 1fr; } .solution-visual { order: -1; } }

/* === TARIFS === */
.tarifs-grid { margin-top: 40px; }
.card-tarif { background: #fff; border-radius: 16px; padding: 32px 24px; box-shadow: var(--shadow-card); text-align: center; transition: transform .2s; position: relative; }
.card-tarif:hover { transform: translateY(-4px); }
.card-tarif.popular { border: 2px solid var(--color-accent); }
.popular-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--color-accent); color: #fff; padding: 4px 18px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.card-tarif h3 { font-family: var(--font-display); font-size: 1.25rem; color: var(--color-primary); }
.tarif-subtitle { font-size: 13px; color: var(--color-gray); margin-bottom: 16px; }
.tarif-price { margin-bottom: 24px; }
.price-big { font-family: var(--font-display); font-size: 2.75rem; font-weight: 800; color: var(--color-dark); }
.tarif-features { list-style: none; text-align: left; margin-bottom: 24px; }
.tarif-features li { padding: 6px 0; font-size: 14px; color: var(--color-gray); }
.tarif-footnote { text-align: center; font-size: 12px; color: var(--color-gray); margin-top: 24px; max-width: 700px; margin-left: auto; margin-right: auto; }

/* === DIFFERENCIATEURS === */
.cards-grid-6 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.card-diff { background: var(--color-off-white); border-radius: 16px; padding: 28px 20px; text-align: center; transition: transform .2s, box-shadow .2s; }
.card-diff:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.card-diff-icon { font-size: 32px; margin-bottom: 12px; }
.card-diff h4 { font-family: var(--font-display); font-size: 1rem; color: var(--color-primary); margin-bottom: 8px; }
.card-diff p { font-size: 13px; color: var(--color-gray); line-height: 1.6; }
@media(max-width:768px) { .cards-grid-6 { grid-template-columns: 1fr; } }

/* === RESEAUX === */
.reseau-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 40px; }
.card-reseau { background: var(--color-dark-secondary); border-radius: 16px; padding: 32px 24px; }
.card-reseau h3 { font-family: var(--font-display); color: #fff; font-size: 1.25rem; margin-bottom: 4px; }
.reseau-sub { font-size: 13px; color: rgba(255,255,255,.6); margin-bottom: 20px; }
.reseau-table { display: flex; flex-direction: column; gap: 10px; }
.reseau-row { display: flex; justify-content: space-between; font-size: 14px; color: rgba(255,255,255,.8); padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.reseau-example { font-size: 13px; color: var(--color-accent); margin-top: 16px; }
.reseau-note { text-align: center; font-size: 12px; color: rgba(255,255,255,.5); margin-top: 28px; max-width: 700px; margin-left: auto; margin-right: auto; }
@media(max-width:768px) { .reseau-grid { grid-template-columns: 1fr; } }

/* === FAQ === */
.faq-container { max-width: 760px; margin: 40px auto 0; }
.faq-item { border-bottom: 1px solid var(--color-gray-border); }
.faq-question { display: flex; justify-content: space-between; align-items: center; width: 100%; background: none; border: none; padding: 20px 0; font-size: 15px; font-weight: 600; color: var(--color-dark); cursor: pointer; text-align: left; font-family: var(--font-body); }
.faq-arrow { font-size: 10px; transition: transform .3s; color: var(--color-gray); }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer p { padding: 0 0 20px; font-size: 14px; color: var(--color-gray); line-height: 1.7; }

/* === FOOTER === */
footer { background: var(--color-dark); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; }
.footer-logo { height: 40px; margin-bottom: 12px; }
.footer-col p { font-size: 13px; color: rgba(255,255,255,.6); line-height: 1.6; }
.footer-col h4 { font-family: var(--font-display); color: #fff; font-size: 14px; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,.7); text-decoration: none; padding: 4px 0; transition: color .2s; }
.footer-col a:hover { color: var(--color-accent); }
.footer-bar { border-top: 1px solid rgba(255,255,255,.1); margin-top: 40px; padding: 20px 0; text-align: center; }
.footer-bar p { font-size: 12px; color: rgba(255,255,255,.4); }
@media(max-width:768px) { .footer-grid { grid-template-columns: 1fr; } }