:root {
            --sentrix-navy: #011638;
            --sentrix-navy-soft: #0b214d;
            --sentrix-cyan: #00D4FF;
            --sentrix-slate: #64748b;
            --sentrix-light: #f8fbff;
        }

        html { scroll-behavior: smooth; }
        body {
            font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            color: #0f172a;
            background:
                radial-gradient(circle at top left, rgba(0, 212, 255, 0.12), transparent 32%),
                radial-gradient(circle at top right, rgba(1, 22, 56, 0.08), transparent 24%),
                #ffffff;
        }

        .text-navy { color: var(--sentrix-navy); }
        .bg-navy { background-color: var(--sentrix-navy); }
        .text-cyan { color: var(--sentrix-cyan); }
        .bg-cyan { background-color: var(--sentrix-cyan); }
        .border-cyan-soft { border-color: rgba(0, 212, 255, 0.22); }

        .sentrix-logo-text {
            font-size: 1.75rem;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: -0.05em;
            line-height: 1;
            color: var(--sentrix-navy);
        }

        .sentrix-logo-x { color: var(--sentrix-cyan); }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.55rem;
            border: 1px solid rgba(0, 212, 255, 0.22);
            background: rgba(0, 212, 255, 0.08);
            color: var(--sentrix-navy);
            padding: 0.5rem 0.9rem;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 800;
            letter-spacing: 0.18em;
            text-transform: uppercase;
        }

        .hero-grid {
            background: linear-gradient(135deg, rgba(1,22,56,0.98), rgba(11,33,77,0.96));
            position: relative;
            overflow: hidden;
        }

        .hero-grid::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
            background-size: 42px 42px;
            mask-image: linear-gradient(to bottom, rgba(0,0,0,1), rgba(0,0,0,0.35));
            pointer-events: none;
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(10px);
            box-shadow: 0 24px 70px rgba(1, 22, 56, 0.28);
        }

        .info-card {
            background: #ffffff;
            border: 1px solid rgba(148, 163, 184, 0.18);
            box-shadow: 0 18px 60px rgba(15, 23, 42, 0.06);
        }

        .gradient-border {
            position: relative;
            border-radius: 1.75rem;
            overflow: hidden;
        }

        .gradient-border::before {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: inherit;
            padding: 1px;
            background: linear-gradient(135deg, rgba(0,212,255,0.85), rgba(255,255,255,0.1));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        .video-frame {
            position: relative;
            overflow: hidden;
            border-radius: 1.5rem;
            background: #020617;
            box-shadow: 0 25px 80px rgba(2, 6, 23, 0.18);
        }

        .video-frame video {
            width: 100%;
            display: block;
        }

        .soft-shadow { box-shadow: 0 24px 70px rgba(15, 23, 42, 0.08); }

        .floating-trix { animation: float 3.2s ease-in-out infinite; }
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0px); }
        }

        .trix-bubble {
            position: relative;
            background: #ffffff;
            border: 1px solid rgba(0, 212, 255, 0.28);
            border-radius: 16px;
            padding: 14px 16px;
            box-shadow: 0 15px 40px rgba(0, 212, 255, 0.16);
        }

        .trix-bubble::after {
            content: '';
            position: absolute;
            bottom: -8px;
            right: 20px;
            width: 16px;
            height: 16px;
            background: #ffffff;
            border-right: 1px solid rgba(0, 212, 255, 0.28);
            border-bottom: 1px solid rgba(0, 212, 255, 0.28);
            transform: rotate(45deg);
        }

        .pricing-highlight {
            transform: translateY(-10px);
            box-shadow: 0 30px 70px rgba(1, 22, 56, 0.18);
        }

        .nav-link {
            position: relative;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -0.45rem;
            width: 0;
            height: 2px;
            background: var(--sentrix-cyan);
            transition: width 0.25s ease;
        }

        .nav-link:hover::after,
        .nav-link.active::after { width: 100%; }

        .reveal-on-mobile { display: none; }

        @media (max-width: 768px) {
            .pricing-highlight { transform: none; }
            .reveal-on-mobile { display: block; }
        }

                /* Animation globale des cartes */
        article {
            transition: all 0.35s ease;
            cursor: pointer;
        }

        /* Effet hover principal */
        article:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
        }

        /* Animation du titre */
        article h3 {
            transition: all 0.3s ease;
        }

        article:hover h3 {
            letter-spacing: 1px;
            transform: scale(1.05);
        }

        /* Animation du prix */
        article .text-3xl {
            transition: all 0.3s ease;
        }

        article:hover .text-3xl {
            color: #06b6d4; /* cyan */
        }

        /* Effet sur les ic么nes */
        article i {
            transition: transform 0.3s ease;
        }

        article:hover i {
            transform: scale(1.2);
        }

        /* Carte recommand茅e (highlight) encore plus dynamique */
        .pricing-highlight {
            transition: all 0.4s ease;
        }

        .pricing-highlight:hover {
            transform: translateY(-12px) scale(1.04);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.18);
        }
        article::before {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: 1.8rem;
            opacity: 0;
            transition: opacity 0.3s ease;
            background: linear-gradient(120deg, transparent, rgba(6,182,212,0.15), transparent);
        }

        article:hover::before {
            opacity: 1;
        }
        article {
            position: relative;
        }

        .input {
            width: 100%;
            border: 1px solid #e2e8f0;
            border-radius: 12px;
            padding: 14px;
            transition: all 0.3s ease;
        }

        .input:focus {
            border-color: #06b6d4;
            box-shadow: 0 0 0 3px rgba(6,182,212,0.15);
        }

        .btn-send {
            width: 100%;
            background: #06b6d4;
            color: white;
            font-weight: bold;
            padding: 14px;
            border-radius: 12px;
            transition: 0.3s;
        }

        .btn-send:hover {
            background: #0891b2;
            transform: translateY(-2px);
        }
        /* Overlay modal */
#contactModal {
    backdrop-filter: blur(6px);
    animation: fadeIn 0.3s ease;
}

/* Boîte du formulaire */
#contactModal > div {
    animation: slideUp 0.4s ease;
    border-radius: 16px;
}

/* Bouton fermer */
#closeModal {
    background: transparent;
    border: none;
    cursor: pointer;
    color: #555;
    transition: all 0.2s ease;
}
#closeModal:hover {
    color: #000;
    transform: scale(1.2);
}

/* Inputs & textarea */
.input,
.input-group input,
.input-group textarea {
    width: 100%;
    border: 1.5px solid #ddd;
    border-radius: 10px;
    padding: 12px 10px;
    font-size: 14px;
    outline: none;
    transition: 0.3s ease;
    background: transparent;
}

/* Focus effect */
.input:focus,
.input-group input:focus,
.input-group textarea:focus {
    border-color: #1d4ed8;
    box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.15);
}

/* Floating label container */
.grid,
.input-group {
    position: relative;
}

/* Labels */
.grid label,
.input-group label {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: #fff;
    padding: 0 5px;
    font-size: 13px;
    color: #777;
    pointer-events: none;
    transition: 0.2s ease;
}

/* Move label on focus or filled */
input:focus + label,
textarea:focus + label,
input:not(:placeholder-shown) + label,
textarea:not(:placeholder-shown) + label {
    top: -8px;
    font-size: 11px;
    color: #1d4ed8;
}

/* Textarea specific */
textarea {
    min-height: 100px;
    resize: none;
}

/* Bouton premium */
.btn-premium {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
    color: white;
    font-weight: bold;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}