@font-face { font-family: 'Inter'; font-style: normal; font-weight: 100 900; font-display: swap; src: url(/fonts/inter-latin.woff2?v=260c81a4) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

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

        :root {
            --blue-accent: #3b82f6;
            --blue-accent-dark: #2563eb;
            --blue-light: #ACDFFC;
            --blue-deep: #1d4ed8;
            --bg-main: #ffffff;
            --bg-card: #f8fafc;
            --bg-card-hover: #f1f5f9;
            --text: #374151;
            --text-muted: #6b7280;
            --text-bright: #111827;
            --border: #e5e7eb;
            --radius: 16px;
            --radius-sm: 10px;
        }

        html { scroll-behavior: smooth; }

        /* Les <img> portent désormais width/height (réserve de place, évite le
           CLS). Faible spécificité : toute règle explicite ou style inline gagne. */
        img { max-width: 100%; height: auto; }

        /* Accessibilité : anneau de focus visible au clavier (WCAG 2.4.7). */
        a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
            outline: 3px solid var(--blue-deep);
            outline-offset: 3px;
            border-radius: 6px;
        }
        .btn-primary:focus-visible, .nav-cta:focus-visible, .mobile-sticky-cta a:focus-visible {
            outline: 3px solid #fff;
            box-shadow: 0 0 0 6px var(--blue-deep);
        }
        /* Lien d'évitement, révélé à la tabulation */
        .skip-link {
            position: absolute; left: 8px; top: -100px;
            z-index: 10000; background: var(--blue-deep); color: #fff;
            padding: 12px 20px; border-radius: 0 0 8px 8px;
            font-weight: 700; text-decoration: none; transition: top 0.15s ease;
        }
        .skip-link:focus { top: 0; }

        /* Respecte le réglage système "réduire les animations" (WCAG 2.3.3) :
           les blocs .fade-in sont révélés d'emblée plutôt qu'animés. */
        @media (prefers-reduced-motion: reduce) {
            html { scroll-behavior: auto; }
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            .fade-in, .fade-in-left, .fade-in-right, .step-card, .video-wrapper-animated {
                opacity: 1 !important;
                transform: none !important;
            }
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: #ffffff;
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }

        /* ── Utility ── */
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .section { padding: 120px 0; }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--blue-accent);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            color: var(--text-bright);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 48px;
        }
        .text-center { text-align: center; }
        .mx-auto { margin-left: auto; margin-right: auto; }

        /* ── Animations ── */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .fade-in-left {
            opacity: 0;
            transform: translateX(-40px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in-left.visible {
            opacity: 1;
            transform: translateX(0);
        }
        .fade-in-right {
            opacity: 0;
            transform: translateX(40px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in-right.visible {
            opacity: 1;
            transform: translateX(0);
        }

        /* ── Buttons ── */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--blue-accent), var(--blue-accent-dark));
            color: #ffffff;
            box-shadow: 0 4px 24px rgba(59,130,246,0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(59,130,246,0.45);
        }
        .btn-secondary {
            background: transparent;
            color: var(--blue-accent);
            border: 2px solid var(--blue-accent);
        }
        .btn-secondary:hover {
            border-color: var(--blue-accent-dark);
            color: var(--blue-accent-dark);
        }
        .btn-sm {
            padding: 12px 24px;
            font-size: 0.9rem;
        }

        /* ── Navbar ── */
        nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(229,231,235,0.8);
            transition: padding 0.3s ease;
        }
        nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .nav-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-bright);
            text-decoration: none;
        }
        .nav-logo span { color: var(--blue-accent); }
        .nav-links { display: flex; gap: 32px; align-items: center; }
        .nav-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: color 0.2s;
        }
        .nav-links a:hover { color: var(--blue-accent); }
        .nav-cta {
            padding: 10px 24px !important;
            font-size: 0.85rem !important;
            background: linear-gradient(135deg, var(--blue-accent), var(--blue-accent-dark)) !important;
            color: #fff !important;
            border-radius: 50px !important;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-bright);
            font-size: 1.5rem;
            cursor: pointer;
            /* Cible tactile d'au moins 44px (WCAG 2.5.8 : 24px minimum) —
               le bouton ne faisait que 22px de large. */
            min-width: 44px;
            min-height: 44px;
            line-height: 1;
            display: none;
            align-items: center;
            justify-content: center;
        }
        @media (max-width: 1024px) {
            .nav-links { display: none; }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(16px);
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 32px rgba(0,0,0,0.08);
                max-height: 80vh;
                overflow-y: auto;
            }
            .nav-links.open a {
                padding: 12px 16px;
                border-radius: 10px;
                transition: background 0.2s;
            }
            .nav-links.open a:hover {
                background: #f1f5f9;
            }
            .nav-links.open .nav-cta {
                margin-top: 8px;
                text-align: center;
                justify-content: center;
            }
            .mobile-toggle { display: flex; }
        }
        @media (min-width: 1025px) {
            .nav-links { gap: 24px; }
            .nav-links a { font-size: 0.85rem; }
        }

        /* ── Hero ── */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: 80px;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(59,130,246,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(59,130,246,0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(59,130,246,0.1);
            border: 1px solid rgba(59,130,246,0.2);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--blue-accent);
            font-weight: 600;
            margin-bottom: 24px;
        }
        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 900;
            line-height: 1.1;
            color: var(--text-bright);
            margin-bottom: 24px;
        }
        .hero h1 .gradient {
            background: linear-gradient(135deg, var(--blue-accent), var(--blue-deep));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 36px;
            max-width: 500px;
        }
        .hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-image {
            position: relative;
            display: flex;
            justify-content: center;
        }
        .hero-image img {
            -webkit-mask-image: radial-gradient(ellipse 85% 80% at center, black 50%, transparent 100%);
            mask-image: radial-gradient(ellipse 85% 80% at center, black 50%, transparent 100%);
            width: 100%;
            max-width: 480px;
            
            
        }
        .hero-glow {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 120%;
            height: 120%;
            background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 60%);
            pointer-events: none;
        }
        /* ── Hero : ordinateur / tablette / téléphone, cadres CSS avec matière (dégradés, liserés, reflets, perspective, ombres au sol) ── */
        .hero-trio { position: relative; z-index: 1; width: 100%; max-width: 600px; aspect-ratio: 600 / 430; perspective: 1400px; }
        .hero-image .hero-trio img { display: block; max-width: none; -webkit-mask-image: none; mask-image: none; }
        .ht-glass { position: relative; width: 100%; height: 100%; overflow: hidden; }
        .ht-glass::after, .ht-screen::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(112deg, rgba(255,255,255,.22) 0%, rgba(255,255,255,.07) 28%, rgba(255,255,255,0) 46%); }
        /* ordinateur portable */
        .ht-laptop { position: absolute; left: 4%; top: 0; width: 86%; }
        .ht-laptop::after { content: ""; position: absolute; left: 6%; right: 6%; bottom: -6px; height: 26px; background: radial-gradient(ellipse at center, rgba(15,23,42,.38), rgba(15,23,42,0) 70%); filter: blur(6px); z-index: -1; }
        .ht-lid { background: linear-gradient(160deg, #334155 0%, #1e293b 30%, #0f172a 100%); border-radius: 16px 16px 3px 3px; padding: clamp(6px, 0.8vw, 10px) clamp(6px, 0.8vw, 10px) clamp(9px, 1.1vw, 14px); position: relative; box-shadow: inset 0 0 0 1px rgba(255,255,255,.12), inset 0 0 0 2px rgba(0,0,0,.5), 0 30px 60px -20px rgba(29,78,216,.38); }
        .ht-lid::before { content: ""; position: absolute; top: clamp(2px, 0.3vw, 4px); left: 50%; transform: translateX(-50%); width: clamp(3px, 0.4vw, 5px); aspect-ratio: 1; border-radius: 50%; background: #0b1220; box-shadow: 0 0 0 1px #334155, inset 0 0 1px 1px #1d4ed8; }
        .ht-screen { position: relative; aspect-ratio: 3 / 2; overflow: hidden; border-radius: 4px; background: #000; }
        .ht-desk { width: 100%; height: 100%; background: linear-gradient(135deg, #bfdbfe 0%, #e0e7ff 45%, #cffafe 100%); display: flex; align-items: flex-start; justify-content: center; padding: 1.5% 0 0; overflow: hidden; }
        .ht-window { height: 100%; aspect-ratio: 917 / 926; background: #fff; border-radius: 8px 8px 0 0; overflow: hidden; box-shadow: 0 10px 30px -10px rgba(15,23,42,.45); display: flex; flex-direction: column; }
        .ht-window .hero-mockup-bar { padding: 1.6% 2.2%; gap: 1.2%; flex: none; }
        .ht-window .hero-mockup-bar .dot { width: 1.6%; aspect-ratio: 1; height: auto; }
        .ht-window .hero-mockup-url { font-size: clamp(5px, 1.1vw, 10px); padding: 0.6% 2%; margin-left: 1.5%; }
        .ht-window img { width: 100%; height: auto; flex: 1; object-fit: cover; object-position: top; }
        .ht-hinge { height: clamp(3px, 0.4vw, 5px); margin: 0 4%; background: linear-gradient(#0f172a, #334155); border-radius: 0 0 3px 3px; }
        .ht-deck { position: relative; height: clamp(34px, 5.2vw, 62px); margin: 0 -7%; transform-origin: 50% 0; transform: perspective(900px) rotateX(58deg); background: linear-gradient(#e2e8f0 0%, #cbd5e1 55%, #94a3b8 100%); border-radius: 4px 4px 14px 14px; box-shadow: inset 0 1px 0 rgba(255,255,255,.7), 0 8px 14px -6px rgba(15,23,42,.35); }
        .ht-keys { position: absolute; left: 10%; right: 10%; top: 14%; height: 46%; border-radius: 4px; background: #64748b; background-image: repeating-linear-gradient(90deg, rgba(255,255,255,.28) 0 1px, transparent 1px 6.25%), repeating-linear-gradient(0deg, rgba(255,255,255,.28) 0 1px, transparent 1px 25%); box-shadow: inset 0 0 0 1px rgba(15,23,42,.25); }
        .ht-trackpad { position: absolute; left: 38%; right: 38%; top: 68%; height: 22%; border-radius: 3px; background: linear-gradient(#e5e7eb, #cbd5e1); box-shadow: inset 0 0 0 1px rgba(15,23,42,.18); }
        /* tablette (paysage) */
        .ht-tablet { position: absolute; right: -1%; bottom: 0; width: 44%; aspect-ratio: 4 / 3; padding: clamp(4px, 0.55vw, 7px); border-radius: clamp(9px, 1.3vw, 15px); background: linear-gradient(150deg, #475569 0%, #1e293b 35%, #0f172a 100%); box-shadow: inset 0 0 0 1px rgba(255,255,255,.14), inset 0 0 0 2px rgba(0,0,0,.55), 0 30px 50px -18px rgba(15,23,42,.55); transform: rotateY(-9deg) rotateX(2deg); transform-origin: 100% 100%; }
        .ht-tablet::before { content: ""; position: absolute; top: 45%; left: clamp(1px, 0.15vw, 2px); width: clamp(2px, 0.25vw, 3px); height: 10%; border-radius: 2px; background: #0b1220; box-shadow: 0 0 0 1px #475569; transform: translateY(-50%); }
        .ht-tablet .ht-glass { border-radius: clamp(5px, 0.8vw, 9px); background: #f8f9fd; }
        .ht-tablet img { width: 100%; height: 100%; object-fit: contain; }
        .ht-tablet .ht-glass::before { content: ""; position: absolute; left: 50%; bottom: 3%; transform: translateX(-50%); width: 22%; height: 2px; border-radius: 2px; background: rgba(15,23,42,.35); z-index: 1; }
        /* téléphone */
        .ht-phone { position: absolute; left: 0; bottom: 0; width: 20%; aspect-ratio: 9 / 16.5; padding: clamp(2.5px, 0.35vw, 4.5px); border-radius: clamp(11px, 1.6vw, 19px); background: linear-gradient(150deg, #475569 0%, #1e293b 35%, #0f172a 100%); box-shadow: inset 0 0 0 1px rgba(255,255,255,.14), inset 0 0 0 2px rgba(0,0,0,.55), 0 30px 50px -18px rgba(15,23,42,.55); transform: rotateY(10deg) rotateX(2deg); transform-origin: 0 100%; }
        .ht-phone::before { content: ""; position: absolute; top: 2.4%; left: 50%; transform: translateX(-50%); width: 7%; aspect-ratio: 1; border-radius: 50%; background: #0b1220; box-shadow: 0 0 0 1.5px #1e293b, inset 0 0 1px 1px #1d4ed8; z-index: 2; }
        .ht-phone::after { content: ""; position: absolute; right: -2px; top: 22%; width: 2px; height: 9%; border-radius: 1px; background: #334155; box-shadow: 0 -13% 0 0 #334155, -100% 0 0 0 transparent; }
        .ht-phone .ht-glass { border-radius: clamp(8px, 1.25vw, 15px); background: #f7f9fc; }
        .ht-phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
        .ht-phone .ht-glass::before { content: ""; position: absolute; left: 50%; bottom: 2%; transform: translateX(-50%); width: 34%; height: 2px; border-radius: 2px; background: rgba(15,23,42,.35); z-index: 1; }
        /* Sous 768px la zone image est centrée par marges auto et se dimensionne sur son contenu : le trio a besoin d'une largeur définie */
        @media (max-width: 768px) { .hero-trio { width: min(92vw, 600px); } }
        @media (max-width: 560px) { .ht-window .hero-mockup-bar { display: none; } .ht-lid { border-radius: 9px 9px 2px 2px; } }
        .hero-mockup {
            position: relative;
            z-index: 1;
            width: 100%;
            max-width: 560px;
            background: #fff;
            border-radius: 14px;
            box-shadow: 0 30px 60px -15px rgba(29,78,216,0.28), 0 0 0 1px rgba(15,23,42,0.05);
            overflow: hidden;
            transition: transform 0.4s ease, box-shadow 0.4s ease;
        }
        .hero-mockup:hover {
            transform: translateY(-6px);
            box-shadow: 0 40px 70px -15px rgba(29,78,216,0.35), 0 0 0 1px rgba(15,23,42,0.05);
        }
        .hero-mockup-bar {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 11px 14px;
            background: #f1f5f9;
            border-bottom: 1px solid #e5e7eb;
        }
        .hero-mockup-bar .dot { width: 11px; height: 11px; border-radius: 50%; background: #cbd5e1; flex-shrink: 0; }
        .hero-mockup-bar .dot:nth-child(1) { background: #f87171; }
        .hero-mockup-bar .dot:nth-child(2) { background: #fbbf24; }
        .hero-mockup-bar .dot:nth-child(3) { background: #34d399; }
        .hero-mockup-url {
            margin-left: 10px;
            flex: 1;
            background: #fff;
            border: 1px solid #e5e7eb;
            border-radius: 7px;
            font-size: 0.72rem;
            color: #94a3b8;
            padding: 5px 12px;
            text-align: center;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hero-mockup img {
            display: block !important;
            width: 100% !important;
            max-width: 100% !important;
            height: auto !important;
            -webkit-mask-image: none !important;
            mask-image: none !important;
        }
        @media (max-width: 768px) {
            .hero .container {
                display: flex;
                flex-direction: column;
                text-align: center;
            }
            .hero p { margin-left: auto; margin-right: auto; }
            .hero-buttons { justify-content: center; }
            .hero-content { display: contents; }
            .hero-content > div:first-child { order: 1; } /* trust line */
            .hero-content h1 { order: 2; }
            .hero-image { order: 3; margin: 0 auto; }
            .hero-content p { order: 4; }
            .hero-content .hero-buttons { order: 5; }
            .hero-content > div:last-child { order: 6; } /* trust line if at bottom */
            .hero-image img {
            -webkit-mask-image: radial-gradient(ellipse 85% 80% at center, black 50%, transparent 100%);
            mask-image: radial-gradient(ellipse 85% 80% at center, black 50%, transparent 100%); max-width: 320px; }
        }

        /* ── Trust Band ── */
        .trust-band-deprecated {
            padding: 40px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .trust-item .trust-icon {
            font-size: 2rem;
            margin-bottom: 8px;
        }
        .trust-item .trust-label {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-bright);
        }
        .trust-item .trust-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        @media (max-width: 600px) {
            .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
        }

        /* ── Problem section ── */
        .problem-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .problem-card {
            background: #fff;
            border: 1px solid #e5e7eb;
            border-radius: var(--radius);
            padding: 32px;
            text-align: center;
        }
        .problem-card .icon { font-size: 2.5rem; margin-bottom: 16px; }
        .problem-card h3 {
            font-size: 1.1rem;
            color: #3b82f6;
            margin-bottom: 8px;
        }
        .problem-card p { font-size: 0.9rem; color: var(--text-muted); }
        @media (max-width: 768px) {
            .problem-grid { grid-template-columns: 1fr; }
        }

        /* ── Solution ── */
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .solution-image img {
            width: 100%;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: 0 20px 60px rgba(0,0,0,0.08);
        }
        .solution-content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-bright);
            margin-bottom: 16px;
        }
        .solution-content p {
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .solution-list {
            list-style: none;
            margin-top: 24px;
        }
        .solution-list li {
            padding: 8px 0;
            padding-left: 28px;
            position: relative;
            color: var(--text);
            font-size: 0.95rem;
        }
        .solution-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--blue-accent);
            font-weight: 700;
        }
        @media (max-width: 768px) {
            .solution-grid { grid-template-columns: 1fr; }
        }

        /* ── Features Grid ── */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px;
            transition: all 0.3s ease;
        }
        .feature-card:hover {
            border-color: var(--blue-accent);
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.06);
        }
        .feature-card .feature-icon {
            font-size: 2.2rem;
            margin-bottom: 16px;
            display: block;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-bright);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ── Split section (VE, sous-compteurs, remote, etc.) ── */
        .split-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .split-section.reverse .split-image { order: 2; }
        .split-section.reverse .split-content { order: 1; }
        .split-image img {
            width: 100%;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: 0 16px 48px rgba(0,0,0,0.08);
        }
        .split-content h3 {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-bright);
            margin-bottom: 16px;
        }
        .split-content p {
            color: var(--text-muted);
            margin-bottom: 16px;
            font-size: 1rem;
        }
        .stat-highlight {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(59,130,246,0.1);
            border: 1px solid rgba(59,130,246,0.2);
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            color: var(--blue-accent);
            font-weight: 700;
            font-size: 1.1rem;
            margin-top: 8px;
        }
        @media (max-width: 768px) {
            .split-section { grid-template-columns: 1fr; }
            .split-section .split-content { order: 1; }
            .split-section .split-image { order: 2; }
            .split-section.reverse .split-content { order: 1; }
            .split-section.reverse .split-image { order: 2; }
        }

        /* ── Compatibility ── */
        .compat-logos {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            align-items: center;
            margin-top: 48px;
        }
        .compat-item {
            text-align: center;
            padding: 24px 32px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            min-width: 160px;
            transition: border-color 0.3s;
        }
        .compat-item:hover { border-color: var(--blue); }
        .compat-item .compat-icon { font-size: 2.5rem; margin-bottom: 8px; }
        .compat-item .compat-name {
            font-weight: 700;
            color: var(--text-bright);
            font-size: 1rem;
        }
        .compat-item .compat-protocol {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ── Video ── */
        .video-wrapper {
            position: relative;
            padding-bottom: 56.25%;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: 0 20px 60px rgba(0,0,0,0.08);
            max-width: 800px;
            margin: 0 auto;
        }
        .video-wrapper iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }

        /* ── CTA Final ── */
        .cta-final {
            text-align: center;
            padding: 100px 0;
            position: relative;
            background: linear-gradient(135deg, var(--blue-accent), var(--blue-deep));
            color: #fff;
        }
        .cta-final h2 { color: #fff; }
        .cta-final p { color: rgba(255,255,255,0.85); }
        .cta-final::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(59,130,246,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-final h2 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 900;
            color: var(--text-bright);
            margin-bottom: 20px;
        }
        .cta-final p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 36px;
        }

        /* ── Footer ── */
        footer {
            padding: 48px 0 32px;
            border-top: 1px solid var(--border);
            background: var(--bg-card);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .nav-logo { display: inline-block; margin-bottom: 12px; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); }
        .footer-col h4 {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--text-bright);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            margin-bottom: 10px;
            transition: color 0.2s;
        }
        .footer-col a:hover { color: var(--blue-accent); }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 480px) {
            .footer-grid { grid-template-columns: 1fr; }
        }

        /* ── Separator ── */
        .section-alt { background: var(--bg-card); }

        /* ── Open Source badges ── */
        .os-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 24px;
        }
        .os-stat {
            background: #f8fafc;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 16px 24px;
            text-align: center;
        }
        .os-stat .os-val {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--blue-accent);
        }
        .os-stat .os-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ── App store buttons ── */
        .store-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .store-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            background: #f8fafc;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text-bright);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            transition: border-color 0.3s;
        }
        .store-btn:hover { border-color: var(--blue-accent); }
        .store-btn .store-icon { font-size: 1.3rem; }

        /* ── Pricing highlight ── */
        .pricing-card {
            background: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(59,130,246,0.08));
            border: 1px solid rgba(59,130,246,0.2);
            border-radius: var(--radius);
            padding: 32px;
            text-align: center;
            max-width: 400px;
        }
        .pricing-card .price {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--blue-accent);
        }
        .pricing-card .price-sub {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ── Production solaire responsive ── */
        @media (max-width: 768px) {
            .solar-routage-grid {
                grid-template-columns: 1fr !important;
                gap: 16px !important;
                text-align: center;
            }
            .solar-checklist {
                grid-template-columns: 1fr !important;
            }
        }

        /* ── Setup steps responsive ── */
        @media (max-width: 768px) {
            .section { padding: 80px 0 !important; }
        }

        /* ── Lightbox ── */
        .lightbox-trigger { cursor: zoom-in; transition: transform 0.3s ease; }
        .lightbox-trigger:hover { transform: scale(1.02); }
        .lightbox-overlay {
            display: none;
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.85);
            z-index: 9999;
            cursor: zoom-out;
            justify-content: center;
            align-items: center;
            padding: 24px;
        }
        .lightbox-overlay.active { display: flex; }
        .lightbox-overlay img {
            max-width: 95vw;
            max-height: 95vh;
            object-fit: contain;
            border-radius: 12px;
            box-shadow: 0 16px 64px rgba(0,0,0,0.5);
        }

        /* ── Installation animations ── */
        .step-card {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .step-card.visible { opacity: 1; transform: translateY(0); }
        .step-card:nth-child(2) { transition-delay: 0.2s; }
        .step-card:nth-child(3) { transition-delay: 0.4s; }

        .step-number {
            position: relative;
            overflow: hidden;
        }
        .step-number::after {
            content: '';
            position: absolute;
            top: -50%; left: -50%;
            width: 200%; height: 200%;
            background: conic-gradient(transparent, rgba(255,255,255,0.3), transparent);
            animation: step-shine 3s linear infinite;
        }
        @keyframes step-shine {
            to { transform: rotate(360deg); }
        }

        .step-connector {
            position: absolute;
            top: 40px;
            right: -24px;
            width: 48px;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-accent), transparent);
            opacity: 0;
            animation: connector-appear 0.5s ease forwards;
            animation-delay: 0.8s;
        }
        @media (max-width: 768px) {
            .step-connector { display: none; }
        }

        .pulse-badge {
            animation: pulse-glow 2s ease-in-out infinite;
        }
        @keyframes pulse-glow {
            0%, 100% { box-shadow: 0 8px 24px rgba(59,130,246,0.3); }
            50% { box-shadow: 0 8px 32px rgba(59,130,246,0.5); }
        }

        .video-wrapper-animated {
            opacity: 0;
            transform: scale(0.95);
            transition: opacity 0.8s ease, transform 0.8s ease;
            transition-delay: 0.6s;
        }
        .video-wrapper-animated.visible { opacity: 1; transform: scale(1); }

        /* ── Global mobile improvements ── */
        @media (max-width: 480px) {
            .container { padding: 0 16px; }
            .section { padding: 60px 0 !important; }
            .section-title { font-size: 1.6rem !important; }
            .section-subtitle { font-size: 0.95rem !important; }
            .section-label { font-size: 0.7rem; }
            
            /* Hero mobile */
            .hero { min-height: auto; padding-top: 100px; padding-bottom: 40px; }
            .hero h1 { font-size: 1.8rem !important; margin-bottom: 0 !important; }
            .hero p { font-size: 0.9rem; }
            .hero-image img { max-width: 280px; }
            .hero-buttons { flex-direction: column; gap: 12px; }
            .hero-buttons .btn { width: 100%; justify-content: center; }
            
            /* Trust line in hero */
            .hero-content > div:first-child { 
                flex-wrap: wrap !important; 
                justify-content: center; 
                font-size: 0.75rem !important;
                white-space: normal !important;
            }
            
            /* Split sections */
            .split-section { gap: 24px !important; }
            .split-content h3 { font-size: 1.2rem; }
            
            /* Feature cards */
            .feature-card { padding: 20px; }
            .feature-card h3 { font-size: 0.95rem; }
            
            /* Tarif grid in split */
            .split-image > div { gap: 8px !important; }
            .split-image > div > div { padding: 14px !important; }
            
            /* Cas d'usage cards */
            #usecases > .container > div:last-child { 
                grid-template-columns: 1fr !important;
            }
            
            /* Specs grid */
            #usecases ~ section div[style*="repeat(auto-fit, minmax(200px"] {
                grid-template-columns: repeat(2, 1fr) !important;
            }
            
            /* Zigbee ecosystem cards */
            div[style*="repeat(auto-fit, minmax(250px"] {
                grid-template-columns: 1fr 1fr !important;
                gap: 12px !important;
            }
            
            /* Remote pricing */
            .pricing-card { padding: 16px !important; }
            
            /* FAQ */
            details summary { padding: 16px !important; font-size: 0.9rem !important; }
            
            /* CTA final */
            .container > .fade-in > h2 { font-size: 1.6rem !important; }
            
            /* Multi-energy cards */
            div[style*="grid-template-columns: repeat(3, 1fr); gap: 12px"] {
                grid-template-columns: 1fr !important;
            }
            
            /* Open source cards */
            div[style*="repeat(auto-fit, minmax(220px"] {
                grid-template-columns: 1fr 1fr !important;
                gap: 12px !important;
            }
            
            /* Store badges */
            div[style*="gap: 12px; flex-wrap: wrap; margin-top: 20px"] {
                flex-direction: column;
                align-items: flex-start;
            }
            
            /* Buttons */
            .btn { padding: 14px 24px; font-size: 0.9rem; }
            .btn-sm { padding: 10px 20px; font-size: 0.85rem; }
        }
        
        @media (max-width: 360px) {
            .hero h1 { font-size: 1.5rem !important; }
            div[style*="grid-template-columns: 1fr 1fr; gap: 12px"] {
                grid-template-columns: 1fr !important;
            }
        }

        /* ── Mobile centering fixes ── */
        @media (max-width: 768px) {
            .split-content, .split-image {
                text-align: center !important;
            }
            .split-content ul {
                display: inline-block;
                text-align: left;
            }
            .split-content .btn, .split-content a.btn {
                display: inline-flex !important;
                justify-content: center;
            }
            .hero-content {
                text-align: center;
            }
            .hero-content > div:first-child {
                justify-content: center !important;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-image {
                text-align: center;
            }
            .section-label, .section-title, .section-subtitle {
                text-align: center !important;
            }
            .split-image img {
                margin: 0 auto;
            }
            /* Store badges */
            div[style*="gap: 12px; flex-wrap: wrap; margin-top: 20px"],
            div[style*="gap: 16px; flex-wrap: wrap; margin-top: 20px"] {
                justify-content: center !important;
            }
            /* Feature cards grid */
            .features-grid {
                justify-items: center;
            }
            /* Specs grid */
            div[style*="repeat(auto-fit, minmax(200px"] {
                text-align: center;
            }
            /* Problem/why cards */
            .problem-grid {
                justify-items: center;
            }
            /* Footer */
            .footer-grid {
                text-align: center;
            }
            .footer-brand {
                text-align: center !important;
            }
        }

        /* ── Fix nav overflow on mobile ── */
        html, body {
            overflow-x: hidden !important;
            max-width: 100vw;
        }
        nav .container {
            overflow: hidden;
        }
        .nav-links {
            overflow: hidden;
        }

        /* ── FAQ toggle icon ── */
        details summary span:last-child {
            transition: transform 0.3s ease;
        }
        details[open] summary span:last-child {
            transform: rotate(45deg);
        }

        /* ── Guides grid ── */
        .guide-link {
            display: flex;
            flex-direction: column;
            gap: 6px;
            padding: 20px 22px;
            background: #fff;
            border: 1px solid #e5e7eb;
            border-radius: 14px;
            text-decoration: none;
            color: #111827;
            font-weight: 700;
            font-size: 1rem;
            line-height: 1.35;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .guide-link span {
            font-weight: 400;
            font-size: 0.88rem;
            color: #6b7280;
            line-height: 1.5;
        }
        .guide-link:hover {
            transform: translateY(-4px);
            border-color: var(--blue-accent);
            box-shadow: 0 12px 32px rgba(59,130,246,0.12);
        }
        .guide-link-all {
            background: #eff6ff;
            border-color: #bfdbfe;
            color: var(--blue-deep);
            justify-content: center;
        }
        .guide-link-all span { color: var(--blue-accent); font-weight: 600; }
    

        /* Section Application mobile : appareils encadrés en CSS pur, widgets par catégorie en WebP transparent */
        .wg-devices { display: grid; grid-template-columns: 1fr 2.1fr 1fr; gap: 28px; align-items: end; max-width: 1060px; margin: 0 auto; }
        .wg-device { text-align: center; }
        .wg-phone, .wg-tablet { position: relative; margin: 0 auto; background: #0f172a; box-shadow: 0 34px 60px -24px rgba(15,23,42,.45), inset 0 0 0 1px rgba(255,255,255,.07); }
        .wg-phone { max-width: 236px; padding: 10px; border-radius: 40px; }
        .wg-phone::before { content: ""; position: absolute; top: 19px; left: 50%; transform: translateX(-50%); width: 11px; height: 11px; border-radius: 50%; background: #000; box-shadow: 0 0 0 2px #1e293b; z-index: 1; }
        .wg-phone img { display: block; width: 100%; height: auto; border-radius: 31px; }
        .wg-tablet { max-width: 540px; padding: 16px; border-radius: 30px; }
        .wg-tablet img { display: block; width: 100%; height: auto; border-radius: 16px; }
        .wg-os { display: inline-block; font-size: .7rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: #2563eb; background: #eff6ff; padding: 3px 10px; border-radius: 50px; margin: 16px 0 6px; }
        .wg-cap { font-size: .86rem; color: #6b7280; line-height: 1.5; margin: 0; }
        .wg-cap b { color: #111827; }
        .wg-stores { display: flex; justify-content: center; align-items: center; gap: 14px; flex-wrap: wrap; margin: 36px 0 12px; }
        .wg-stores a { display: flex; align-items: center; justify-content: center; height: 48px; width: 162px; transition: transform .2s; }
        .wg-stores a:hover { transform: scale(1.05); }
        .wg-stores-note { text-align: center; font-size: .88rem; color: #6b7280; margin: 0 0 48px; }
        .wg-feats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; max-width: 1060px; margin: 0 auto 64px; }
        .wg-feat { background: #fff; border: 1px solid #e5e7eb; border-radius: 16px; padding: 20px 22px; }
        .wg-feat .ic { font-size: 1.5rem; line-height: 1; margin-bottom: 10px; }
        .wg-feat h4 { font-size: 1rem; font-weight: 800; color: #111827; margin: 0 0 6px; }
        .wg-feat p { font-size: .9rem; color: #6b7280; line-height: 1.55; margin: 0; }
        .wg-sub { text-align: center; max-width: 720px; margin: 0 auto 32px; }
        .wg-sub h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 800; color: #111827; margin: 0 0 10px; line-height: 1.2; }
        .wg-sub p { color: #6b7280; margin: 0; }
        .wg-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; max-width: 1120px; margin: 0 auto; align-items: stretch; }
        .wg-tile { background: #fff; border: 1px solid #e5e7eb; border-radius: 18px; overflow: hidden; box-shadow: 0 4px 24px rgba(0,0,0,.05); display: flex; flex-direction: column; }
        .wg-tile figure { margin: 0; padding: 18px; height: 210px; flex: none; background: linear-gradient(160deg, #eef4fb 0%, #e3ebf5 100%); display: flex; align-items: center; justify-content: center; }
        .wg-tile img { display: block; width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 10px 18px rgba(15,23,42,.18)); }
        .wg-body { padding: 14px 18px 16px; flex: 1; }
        .wg-body h4 { font-size: 1rem; font-weight: 800; color: #111827; margin: 0 0 4px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
        .wg-body p { font-size: .88rem; color: #6b7280; line-height: 1.5; margin: 0; }
        .wg-body a { color: var(--blue-accent); font-weight: 600; }
        .wg-badge { font-size: .66rem; font-weight: 700; letter-spacing: .03em; color: #2563eb; background: #eff6ff; padding: 2px 8px; border-radius: 50px; }
        .wg-badge.is-new { color: #047857; background: #ecfdf5; }
        .wg-more { text-align: center; margin-top: 32px; color: #6b7280; font-size: .95rem; }
        @media (max-width: 1000px) { .wg-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 900px) {
            .wg-devices { grid-template-columns: 1fr 1fr; gap: 20px; }
            .wg-device.is-tablet { grid-column: 1 / -1; order: -1; }
            .wg-feats { grid-template-columns: 1fr; }
        }
        @media (max-width: 560px) {
            .wg-phone { max-width: 168px; padding: 7px; border-radius: 30px; }
            .wg-phone img { border-radius: 24px; }
            .wg-phone::before { top: 13px; width: 8px; height: 8px; }
            .wg-tablet { padding: 11px; border-radius: 22px; }
            .wg-tablet img { border-radius: 12px; }
            .wg-grid { grid-template-columns: 1fr; }
        }
    

      .mobile-sticky-cta { display: none; }
      @media (max-width: 768px) {
        body { padding-bottom: 78px; }
        .mobile-sticky-cta { display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 150; transform: translateY(110%); transition: transform .3s ease; padding: 10px 14px; background: rgba(255,255,255,0.97); backdrop-filter: blur(10px); border-top: 1px solid #e5e7eb; box-shadow: 0 -2px 14px rgba(0,0,0,0.08); }
        .mobile-sticky-cta a { display: block; width: 100%; text-align: center; background: linear-gradient(135deg, var(--blue-accent), var(--blue-accent-dark)); color: #fff; padding: 14px; border-radius: 10px; font-weight: 700; font-size: 1rem; text-decoration: none; }
      }
    
        .mobile-sticky-cta.is-visible { transform: none; }

        .usage-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .usage-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
        .usage-card figure { margin: 0; aspect-ratio: 16 / 9; background: #f8fafc; overflow: hidden; }
        .usage-card figure img { width: 100%; height: 100%; object-fit: cover; }
        .usage-card .usage-body { padding: 24px 26px 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
        .usage-card h3 { font-size: 1.2rem; font-weight: 800; color: var(--text-bright); line-height: 1.3; }
        .usage-card p { color: var(--text); font-size: 0.95rem; line-height: 1.6; margin: 0; }
        .usage-card ul { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 6px; }
        .usage-card li { padding-left: 24px; position: relative; font-size: 0.92rem; color: #374151; }
        .usage-card li::before { content: "✓"; position: absolute; left: 0; color: var(--blue-accent); font-weight: 700; }
        .usage-card .more { margin-top: auto; padding-top: 8px; color: var(--blue-accent-dark); font-weight: 700; font-size: 0.92rem; text-decoration: none; }
        .chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 20px auto 0; max-width: 900px; }
        .chips span { background: #fff; border: 1px solid var(--border); border-radius: 50px; padding: 8px 16px; font-size: 0.9rem; color: #374151; font-weight: 600; }
        .spec-sub { text-align: center; margin: 56px auto 8px; max-width: 720px; }
        .spec-sub h3 { font-size: 1.35rem; font-weight: 800; color: var(--text-bright); margin-bottom: 8px; }
        .spec-sub p { color: var(--text-muted); font-size: 0.98rem; }
        @media (max-width: 800px) { .usage-grid { grid-template-columns: 1fr; } }

        /* Installation : stepper vertical (variante E) */
        .steps-need { text-align: center; color: #6b7280; font-size: 0.95rem; margin: -40px auto 36px; }
        .steps-need strong { color: #111827; }
        .stepper { list-style: none; margin: 0 auto 64px; padding: 0; max-width: 960px; position: relative; }
        .stepper::before { content: ""; position: absolute; left: 39px; top: 40px; bottom: 40px; width: 4px; background: linear-gradient(var(--blue-accent), var(--blue-deep)); border-radius: 2px; opacity: .3; }
        .stepper .step-card { display: grid; grid-template-columns: 80px 1fr 300px; gap: 28px; align-items: center; padding: 26px 0; position: relative; text-align: left; }
        .stepper .step-card + .step-card { border-top: 1px solid #eef2f7; }
        .stepper .step-n { width: 80px; height: 80px; border-radius: 50%; background: linear-gradient(135deg, var(--blue-accent), var(--blue-deep)); color: #fff; font-weight: 900; font-size: 2.4rem; display: flex; align-items: center; justify-content: center; box-shadow: 0 12px 28px rgba(29,78,216,.35); position: relative; z-index: 1; }
        .stepper .step-txt { position: relative; padding-left: 8px; }
        .stepper .step-ghost { position: absolute; left: -6px; top: -34px; font-size: 8.5rem; font-weight: 900; line-height: 1; color: var(--blue-accent); opacity: .07; letter-spacing: -.05em; pointer-events: none; user-select: none; }
        .stepper .step-kicker { font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--blue-accent); margin-bottom: 6px; position: relative; }
        .stepper h3 { font-size: 1.35rem; font-weight: 800; color: #111827; margin: 0 0 8px; line-height: 1.25; position: relative; }
        .stepper p { font-size: .98rem; color: #4b5563; line-height: 1.65; margin: 0 0 8px; position: relative; }
        .stepper .step-txt a { color: var(--blue-accent-dark); font-weight: 700; font-size: .92rem; text-decoration: none; position: relative; }
        .stepper figure { margin: 0; aspect-ratio: 4 / 3; border-radius: 14px; overflow: hidden; border: 1px solid var(--border); background: #f1f5f9; }
        .stepper figure img { width: 100%; height: 100%; object-fit: cover; }
        @media (max-width: 900px) {
            .steps-need { margin-top: -24px; }
            .stepper::before { left: 30px; }
            .stepper .step-card { grid-template-columns: 64px 1fr; grid-template-areas: "n t" "n f"; gap: 18px 20px; align-items: start; }
            .stepper .step-n { margin-top: 18px; }
            .stepper .step-n { grid-area: n; width: 64px; height: 64px; font-size: 1.9rem; }
            .stepper .step-txt { grid-area: t; }
            .stepper figure { grid-area: f; max-width: 360px; }
            .stepper .step-ghost { font-size: 6rem; top: -22px; }
        }

        /* Composer sa solution : onglets CSS (à portée / éloigné) */
        .cs-input { position: absolute; opacity: 0; width: 1px; height: 1px; overflow: hidden; pointer-events: none; }
        .cs-tabs { display: flex; gap: 6px; background: #e5e7eb; border-radius: 14px; padding: 6px; max-width: 680px; margin: 36px auto 28px; }
        .cs-tab { flex: 1; text-align: center; padding: 12px 14px; border-radius: 10px; font-weight: 700; color: #4b5563; cursor: pointer; font-size: 0.95rem; line-height: 1.3; transition: background .2s, color .2s; }
        .cs-tab small { display: block; font-weight: 600; font-size: 0.75rem; color: #9ca3af; margin-top: 2px; }
        .cs-tab:hover { color: #111827; }
        #cs-zigbee:checked ~ .cs-tabs .cs-tab[for="cs-zigbee"], #cs-lora:checked ~ .cs-tabs .cs-tab[for="cs-lora"] { background: #fff; color: #111827; box-shadow: 0 2px 10px rgba(0,0,0,.08); }
        #cs-zigbee:focus-visible ~ .cs-tabs .cs-tab[for="cs-zigbee"], #cs-lora:focus-visible ~ .cs-tabs .cs-tab[for="cs-lora"] { outline: 3px solid var(--blue-deep); outline-offset: 2px; }
        .cs-pane { display: none; }
        #cs-zigbee:checked ~ .cs-pane-zigbee, #cs-lora:checked ~ .cs-pane-lora { display: block; }
        .cs-intro { text-align: center; color: #6b7280; max-width: 760px; margin: 0 auto 24px; font-size: 0.98rem; line-height: 1.6; }
        .cs-lora-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 760px; margin: 0 auto; }
        .cs-lora-card { position: relative; background: #fff; border: 1px dashed #cbd5e1; border-radius: 18px; padding: 26px; opacity: .85; }
        .cs-lora-card h3 { font-size: 1.1rem; font-weight: 800; color: #111827; margin: 10px 0 8px; }
        .cs-lora-card p { font-size: 0.9rem; color: #6b7280; line-height: 1.6; margin: 0 0 14px; }
        .cs-soon, .cs-lora-price { display: inline-block; font-size: 0.72rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; color: #92400e; background: #fef3c7; padding: 5px 11px; border-radius: 50px; }
        .cs-lora-price { text-transform: none; letter-spacing: 0; font-size: 0.8rem; font-weight: 700; }
        .cs-foot { text-align: center; font-size: 0.82rem; color: #9ca3af; margin: 16px auto 0; max-width: 900px; line-height: 1.6; }
        .cs-foot a { color: var(--blue-accent-dark); font-weight: 700; text-decoration: none; }
        @media (max-width: 760px) { .cs-tabs { flex-direction: column; } .cs-lora-grid { grid-template-columns: 1fr; } }

/* Icônes inline monochromes (remplacent les emojis) */
.ico { display: inline-block; width: 1em; height: 1em; vertical-align: -0.15em; color: var(--blue-accent, #3b82f6); flex-shrink: 0; }