:root {
            --primary:        #1E6FFF;
            --primary-dark:   #501dcf;
            --primary-light:  rgba(30,111,255,0.12);
            --primary-border: rgba(30,111,255,0.35);
            --dark:    #121118;
            --darker:  #121118;
            --card-bg:  rgba(255,255,255,0.04);
            --border:         rgba(255,255,255,0.1);
            --text:     #FFFFFF;
            --text-muted:     rgba(255,255,255,0.5);
            --text-secondary: rgba(255,255,255,0.7);
            --radius:      10px;
            --radius-sm:    6px;
            --radius-lg:   16px;
            --radius-full: 9999px;
            --transition:  0.2s ease;
            --header-height: 4.5rem;
            --z-header: 100;
            --spacing-xs:  0.25rem;
            --spacing-sm:  0.5rem;
            --spacing-md:  1rem;
            --spacing-lg:  1.5rem;
            --spacing-xl:  2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --container-padding: clamp(1rem,3vw,1.25rem);
            --font-size-xs: 0.75rem;
            --font-size-sm: 0.875rem;
            --font-size-md: 1rem;
            --font-size-lg: 1.125rem;
            --font-size-xl: 1.25rem;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { font-size: 16px; scroll-behavior: smooth; }
        body { font-family: 'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif; background-color: var(--dark); color: var(--text); line-height: 1.5; overflow-x: hidden; min-height: 100vh; -webkit-font-smoothing: antialiased; }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--container-padding); }

        .header { position: fixed; top: 0; left: 0; width: 100%; z-index: var(--z-header); background-color: rgba(18,17,24,0.92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); padding: var(--spacing-md) 0; border-bottom: 1px solid var(--border); height: var(--header-height); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .logo { font-size: 29px; font-weight: 800; color: var(--primary); display: flex; align-items: center; z-index: 110; position: relative; }
        .logo2 { max-width: 100%; width: 140px; height: 38px; }
        .logo:hover { color: var(--primary); }
        .logo img { max-width: 100%; }
        .nav { display: flex; align-items: center; }
        .nav-links { display: flex; list-style: none; margin-right: var(--spacing-xl); }
        .nav-links li { margin: 0 var(--spacing-md); }
        .nav-link { color: var(--text); font-size: 0.9rem; font-weight: 500; padding: var(--spacing-xs) var(--spacing-sm); border-radius: var(--radius-sm); transition: color var(--transition); position: relative; }
        .nav-icon { display: none; }
        .nav-link::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--primary); border-radius: 99px; transition: width var(--transition); }
        .nav-link:hover { color: var(--primary); }
        .nav-link.active::after, .nav-link:hover::after { width: 100%; }
        .cta-button { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.5rem 1.25rem; background: var(--primary); border-radius: var(--radius-full); color: #fff; font-size: 0.875rem; font-weight: 600; transition: background var(--transition); }
        .cta-button:hover { background: var(--primary-dark); color: #fff; }
        .cta-button i { font-size: 0.78rem; line-height: 1; width: 0.85rem; display: inline-flex; align-items: center; justify-content: center; transition: transform 0.2s ease; }
        .cta-button:hover i { transform: translateX(4px); }
        .menu-toggle { display: none; align-items: center; justify-content: center; background: none; border: none; color: var(--text); font-size: 1.25rem; cursor: pointer; padding: var(--spacing-sm); z-index: 120; }
        @media (max-width: 992px) {
            .menu-toggle { display: flex; }
            .nav { position: absolute; top: 0; left: 0; right: 0; height: 100vh; background-color: rgba(18,17,24,0.97); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); flex-direction: column; justify-content: center; align-items: center; z-index: 115; opacity: 0; visibility: hidden; transition: opacity var(--transition), visibility var(--transition); padding: var(--spacing-xl); overflow-y: auto; }
            .nav.active { opacity: 1; visibility: visible; }
            .header.menu-open { z-index: 500; }
            .nav-links { flex-direction: column; align-items: center; margin-right: 0; margin-bottom: var(--spacing-xl); width: 100%; }
            .nav-links li { margin: var(--spacing-sm) 0; }
            .nav-link { font-size: 1.125rem; padding: var(--spacing-sm) var(--spacing-md); width: 100%; text-align: center; display: inline-flex; align-items: center; justify-content: center; gap: 0.7rem; }
            .nav-icon { display: inline-block; font-size: 1rem; width: 1.2rem; text-align: center; }
            .nav-link::after { display: none; }
            .nav-link.active { color: var(--primary); }
            .cta-button { width: auto; justify-content: center; padding: 0.55rem 1.4rem; font-size: 0.9rem; }
        }

        .page-top { padding-top: calc(var(--header-height) + var(--spacing-2xl)); padding-bottom: var(--spacing-2xl); }
        .page-header { margin-bottom: var(--spacing-2xl); }
        .page-title { font-size: clamp(1.6rem,4vw,2.2rem); font-weight: 800; margin-bottom: 0.4rem; }
        .page-title > span > span { color: var(--primary); }
        .section-divider { width: 48px; height: 3px; background: var(--primary); border-radius: 99px; margin: 0.75rem 0 1.5rem; }
        .page-intro { font-size: 0.95rem; color: var(--text-muted); margin-top: 0.4rem; line-height: 1.7; }

        .guide-content { max-width: 100%; margin: 0 auto; }

        /* ── Étapes numérotées ──────────────────────────────── */
        .steps { display: grid; gap: 0.75rem; }
        .step-card {
            display: grid;
            grid-template-columns: 56px 1fr;
            gap: 1.25rem;
            background: var(--card-bg);
            border: none;
            border-radius: var(--radius);
            padding: 1.25rem 1.5rem;
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }
        .step-card:hover {
            background: rgba(255,255,255,0.06);
            transform: translateY(-1px);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
        }
        .step-num {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .step-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: var(--text);
        }
        .step-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }
        .step-body code {
            background: rgba(255,255,255,0.06);
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-size: 0.85em;
            color: var(--primary);
        }

        /* ── Grille de cartes (outils) ──────────────────────── */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1rem;
        }
        .tool-card {
            background: var(--card-bg);
            border: none;
            border-radius: var(--radius);
            padding: 1.4rem;
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }
        .tool-card:hover {
            background: rgba(255,255,255,0.06);
            transform: translateY(-2px);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
        }
        .tool-card .tool-icon {
            width: 42px; height: 42px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-bottom: 0.25rem;
        }
        .tool-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
        }
        .tool-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }
        .tool-card .tool-link {
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            margin-top: 0.4rem;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .faq-item {
            background: var(--card-bg);
            border: none;
            border-radius: var(--radius);
            margin-bottom: 0.5rem;
            overflow: hidden;
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
            transition: background 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
        }
        .faq-item::before {
            content: '';
            position: absolute;
            left: 0; top: 0; bottom: 0;
            width: 3px;
            background: var(--primary);
            transform: scaleY(0);
            transform-origin: top;
            transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .faq-item:hover {
            background: rgba(255,255,255,0.06);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
        }
        .faq-item.is-open {
            background: rgba(30,111,255,0.04);
            box-shadow: inset 0 1px 0 rgba(30,111,255,0.2);
        }
        .faq-item.is-open::before { transform: scaleY(1); }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 1.1rem 1.4rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after {
            content: '\f054';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.72rem;
            color: var(--text-muted);
            transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), color 0.2s ease;
            flex-shrink: 0;
        }
        .faq-item:hover summary::after { color: var(--text); }
        .faq-item.is-open summary::after {
            transform: rotate(90deg);
            color: var(--primary);
        }

        .faq-body-inner {
            padding: 0 1.4rem 1.2rem;
        }
        .faq-body {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.75;
            overflow: hidden;
            transition: height 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            will-change: height;
        }
        .faq-body p { margin-bottom: 0.6rem; }
        .faq-body p:last-child { margin-bottom: 0; }
        .faq-body ul { padding-left: 1.4rem; margin: 0.4rem 0; }
        .faq-body li { margin-bottom: 0.35rem; }
        .faq-body code {
            background: rgba(255,255,255,0.06);
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-size: 0.85em;
            color: var(--primary);
        }
        .faq-body strong { color: var(--text); }
        .faq-body a {
            color: var(--primary);
            border-bottom: 1px dotted var(--primary-border);
            transition: border-color 0.2s ease, color 0.2s ease;
        }
        .faq-body a:hover { color: var(--primary-dark); border-bottom-color: var(--primary); }

        .guide-section {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin: var(--spacing-2xl) 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border);
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--text-muted);
        }
        .guide-section:first-of-type { margin-top: var(--spacing-xl); }
        .guide-section i {
            color: var(--primary);
            font-size: 0.85rem;
            opacity: 0.9;
        }

        .footer { background: #0a0910; padding: var(--spacing-xl) 0 var(--spacing-md); border-top: 1px solid var(--border); position: relative; margin-top: var(--spacing-2xl); }
        .footer .footer-logo { color: #ffffff; }
        .footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: var(--spacing-xl); margin-bottom: var(--spacing-lg); position: relative; z-index: 2; }
        .footer-logo { font-size: var(--font-size-xl); font-weight: 800; color: var(--primary); display: inline-block; margin-bottom: var(--spacing-md); }
        .footer-description { color: var(--text-secondary); margin-bottom: var(--spacing-md); font-size: 0.8rem; }
        .footer-social { display: flex; gap: var(--spacing-md); }
        .social-link { width: 36px; height: 36px; background: rgba(255,255,255,0.05); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--text); font-size: var(--font-size-md); transition: all var(--transition); }
        .social-link:hover { background: var(--primary); color: white; transform: translateY(-3px); }
        .footer-title { font-size: var(--font-size-lg); font-weight: 700; margin-bottom: var(--spacing-lg); position: relative; display: inline-block; }
        .footer-title::after { content: ''; position: absolute; left: 0; bottom: -8px; width: 30px; height: 3px; background: var(--primary); border-radius: var(--radius-full); }
        .footer-links { list-style: none; }
        .footer-link { margin-bottom: var(--spacing-md); }
        .footer-link a { color: var(--text-secondary); display: flex; align-items: center; transition: all var(--transition); font-size: var(--font-size-sm); }
        .footer-link a:hover { color: var(--primary); transform: translateX(5px); }
        .footer-link a i { margin-right: var(--spacing-sm); font-size: 12px; }
        .footer-divider { height: 1px; background: var(--border); margin-bottom: var(--spacing-lg); position: relative; z-index: 2; }
        .footer-bottom { display: flex; justify-content: space-between; align-items: center; position: relative; z-index: 2; }
        .copyright { color: var(--text-secondary); font-size: var(--font-size-sm); }
        .footer-bottom-links { display: flex; gap: var(--spacing-lg); }
        .footer-bottom-link { color: var(--text-secondary); font-size: var(--font-size-sm); transition: color var(--transition); }
        .footer-bottom-link:hover { color: var(--primary); }
        @media (max-width: 992px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--spacing-xl); } }
        @media (max-width: 576px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; gap: var(--spacing-md); text-align: center; } .footer-bottom-links { justify-content: center; flex-wrap: wrap; gap: var(--spacing-md); } .footer-title { margin-top: var(--spacing-md); } }

        /* ── Animations d'entrée ─────────────────────────── */
        .fade-in {
            animation: fadeIn 0.5s ease-in-out forwards;
        }
        .fade-in-up {
            opacity: 0;
            animation: fadeInUp 0.5s ease-in-out forwards;
        }
        @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to   { opacity: 1; transform: translateY(0); }
        }
        @media (prefers-reduced-motion: reduce) {
            .fade-in, .fade-in-up { animation: none; opacity: 1; }
        }
        /* Staggered delays pour les cartes dans une même grille/groupe */
        .steps .fade-in-up:nth-child(1),
        .tools-grid .fade-in-up:nth-child(1) { animation-delay: 0s; }
        .steps .fade-in-up:nth-child(2),
        .tools-grid .fade-in-up:nth-child(2) { animation-delay: 0.08s; }
        .steps .fade-in-up:nth-child(3),
        .tools-grid .fade-in-up:nth-child(3) { animation-delay: 0.16s; }
        .steps .fade-in-up:nth-child(4),
        .tools-grid .fade-in-up:nth-child(4) { animation-delay: 0.24s; }

        /* Stagger pour les FAQ : FR/EN alternent donc step 0.05s
           (les invisibles via i18n.css gardent leur delay sans impact) */
        .faq-item.fade-in-up:nth-of-type(1) { animation-delay: 0s; }
        .faq-item.fade-in-up:nth-of-type(2) { animation-delay: 0.05s; }
        .faq-item.fade-in-up:nth-of-type(3) { animation-delay: 0.10s; }
        .faq-item.fade-in-up:nth-of-type(4) { animation-delay: 0.15s; }
        .faq-item.fade-in-up:nth-of-type(5) { animation-delay: 0.20s; }
        .faq-item.fade-in-up:nth-of-type(6) { animation-delay: 0.25s; }
        .faq-item.fade-in-up:nth-of-type(n+7) { animation-delay: 0.30s; }