/* ===== GRADIENT ÉTENDU SUR TOUTE LA PAGE ===== */
    body {
        min-height: 100vh;
        background: linear-gradient(-45deg, 
            rgba(201, 26, 26, 1) 0%, 
            rgba(235, 230, 231, 1) 50%, 
            rgba(0, 0, 0, 1) 99%);
        background-size: 400% 400%;
        animation: gradient-shift 20s ease infinite;
        overflow-x: hidden;
        position: relative;
    }

    .flex {
    display: flex;
    justify-content: space-evenly;}
    
    /* Overlay pour intensifier l'effet */
    .gradient-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(
            135deg,
            rgba(201, 26, 26, 0.1) 0%,
            rgba(235, 230, 231, 0.05) 50%,
            rgba(0, 0, 0, 0.1) 100%
        );
        z-index: 1;
        pointer-events: none;
    }
    
    /* ===== ANIMATION DU GRADIENT ===== */
    @keyframes gradient-shift {
        0% {
            background-position: 0% 50%;
        }
        25% {
            background-position: 50% 100%;
        }
        50% {
            background-position: 100% 50%;
        }
        75% {
            background-position: 50% 0%;
        }
        100% {
            background-position: 0% 50%;
        }
    }
    
    /* ===== TEXTE AVEC GRADIENT ANIMÉ ===== */
    .gradient-text {
        background: linear-gradient(
            90deg,
            #ffffff 0%,
            #e6e6e6 25%,
            #cccccc 50%,
            #999999 75%,
            #666666 100%
        );
        background-size: 200% auto;
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        animation: gradient-text-flow 6s linear infinite;
    }
    
    .gradient-text-sm {
        background: linear-gradient(
            90deg,
            #ffffff 0%,
            #e6e6e6 50%,
            #cccccc 100%
        );
        background-size: 200% auto;
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        animation: gradient-text-flow 4s linear infinite;
    }
    
    @keyframes gradient-text-flow {
        0% { background-position: 0% center; }
        100% { background-position: 200% center; }
    }
    
    /* ===== PARTICULES COLORÉES ===== */
    #particles {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: 2;
    }
    
    .particle {
        position: absolute;
        border-radius: 50%;
        filter: blur(1px);
        animation: float-particle linear infinite;
        box-shadow: 0 0 10px currentColor;
    }
    
    @keyframes float-particle {
        0% {
            transform: translateY(100vh) translateX(0) rotate(0deg);
            opacity: 0;
        }
        10% {
            opacity: 0.7;
        }
        90% {
            opacity: 0.7;
        }
        100% {
            transform: translateY(-100px) translateX(calc(100px * var(--direction, 1))) rotate(360deg);
            opacity: 0;
        }
    }
    
    /* ===== COMPOSANTS AVEC EFFETS DE GRADIENT ===== */
    .glass-card {
        background: rgba(255, 255, 255, 0.07);
        backdrop-filter: blur(12px);
        border: 1px solid rgba(255, 255, 255, 0.12);
        box-shadow: 
            0 20px 50px rgba(0, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.1),
            0 0 20px rgba(201, 26, 26, 0.1);
        transition: all 0.4s ease;
    }
    
    .glass-card:hover {
        border-color: rgba(255, 255, 255, 0.2);
        box-shadow: 
            0 25px 60px rgba(0, 0, 0, 0.4),
            inset 0 1px 0 rgba(255, 255, 255, 0.15),
            0 0 30px rgba(201, 26, 26, 0.2);
        transform: translateY(-5px);
    }
    
    .feature-card {
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 1.5rem;
        padding: 2.5rem 2rem;
        text-align: center;
        transition: all 0.4s ease;
        backdrop-filter: blur(10px);
        position: relative;
        overflow: hidden;
    }
    
    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(
            90deg,
            transparent,
            rgba(255, 255, 255, 0.1),
            transparent
        );
        transition: left 0.7s ease;
    }
    
    .feature-card:hover::before {
        left: 100%;
    }
    
    .feature-card:hover {
        transform: translateY(-10px) scale(1.02);
        border-color: rgba(255, 255, 255, 0.25);
        box-shadow: 
            0 20px 40px rgba(0, 0, 0, 0.3),
            0 0 30px rgba(255, 255, 255, 0.1);
    }
    
    .gradient-icon {
        width: 80px;
        height: 80px;
        margin: 0 auto 1.5rem;
        background: linear-gradient(135deg, 
            rgba(255, 255, 255, 0.15), 
            rgba(255, 255, 255, 0.05));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 2rem;
        color: white;
        border: 2px solid rgba(255, 255, 255, 0.2);
        box-shadow: 
            0 10px 20px rgba(0, 0, 0, 0.2),
            inset 0 0 20px rgba(255, 255, 255, 0.1);
    }
    
    .btn-glow {
        background: linear-gradient(135deg, 
            rgba(255, 255, 255, 0.95) 0%,
            rgba(255, 255, 255, 0.8) 100%);
        color: #1a1a1a;
        font-weight: 600;
        box-shadow: 
            0 15px 35px rgba(255, 255, 255, 0.3),
            0 0 25px rgba(255, 255, 255, 0.2),
            inset 0 1px 0 rgba(255, 255, 255, 0.5);
        position: relative;
        overflow: hidden;
        border: none;
    }
    
    .btn-glow::after {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: linear-gradient(
            45deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent
        );
        transform: rotate(45deg);
        animation: btn-shine 3s infinite linear;
    }
    
    @keyframes btn-shine {
        0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
        100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    }
    
    .social-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 45px;
        height: 45px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.1);
        color: white;
        font-size: 1.2rem;
        transition: all 0.3s ease;
        border: 1px solid rgba(255, 255, 255, 0.2);
    }
    
    .social-icon:hover {
        background: rgba(255, 255, 255, 0.2);
        transform: translateY(-3px) scale(1.1);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }
    
    /* ===== AUTRES ANIMATIONS ===== */
    @keyframes fade-in {
        from { opacity: 0; transform: translateY(-30px); }
        to { opacity: 1; transform: translateY(0); }
    }
    
    @keyframes slide-up {
        from { opacity: 0; transform: translateY(50px); }
        to { opacity: 1; transform: translateY(0); }
    }
    
    @keyframes pulse-slow {
        0%, 100% { opacity: 0.4; }
        50% { opacity: 0.8; }
    }
    
    .animate-fade-in { animation: fade-in 1.2s ease-out; }
    .animate-slide-up { 
        opacity: 0;
        animation: slide-up 0.8s ease forwards;
    }
    .animate-gradient { animation: gradient-text-flow 6s linear infinite; }
    .animate-pulse-slow { animation: pulse-slow 3s ease-in-out infinite; }
    
    /* ===== RESPONSIVE ===== */
    @media (max-width: 768px) {
        h1 { font-size: 2.8rem !important; }
        .glass-card { padding: 1.5rem; }
        .feature-card { padding: 1.5rem; }
        .gradient-icon { width: 60px; height: 60px; font-size: 1.5rem; }
    }
@media(max-width:482px){
    .flex {
    display: flex;
    flex-direction: column;
}
}

 

main{
   min-height: 130vh;
   min-width: 100%;
   display: flex;
   justify-content: center;
   flex-direction: column;
}

main .cent {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        background:linear-gradient(144deg,rgba(255, 0, 0, 1) 2%, rgba(222, 211, 211, 1) 50%, rgba(13, 12, 13, 1) 100%);
        transition: all 0.5s ease;
    }

main .cent:hover{
    background: linear-gradient(270deg,rgba(71, 56, 59, 1) 19%, rgba(181, 152, 166, 1) 33%, rgb(183, 89, 103) 51%, rgba(189, 155, 158, 1) 69%, rgba(41, 30, 30, 1) 87%);
    color: white;
    box-shadow: 0 4px 8px rgba(255, 255, 255, 0.779);
}


.modal-box .input{
    backdrop-filter: blur(0.5rem);
    background:rgba(255, 255, 255, 0) ;
}


.modal-box{
    backdrop-filter: blur(1.5rem);
    background-color: rgba(255, 255, 255, 0);
    box-shadow: 0 4px 8px rgba(14, 13, 13, 0.779);
    border-radius: 1rem;
    padding: 1rem;
    color: rgb(3, 3, 3);
}

.modal-box .btn-connexion{
    backdrop-filter: blur(1.5rem);
    background: rgba(255, 255, 255, 0);
    box-shadow: 0 4px 8px rgba(14, 13, 13, 0.779);
    color: rgb(0, 0, 0);
    transition: all 0.5s ease;
}

.modal-box .btn-connexion:hover{
    background: linear-gradient(144deg,rgba(255, 0, 0, 1) 2%, rgba(222, 211, 211, 1) 50%, rgba(13, 12, 13, 1) 100%);
    color: white;
    box-shadow: 0 4px 8px rgba(255, 255, 255, 0.779);
}

footer{
    background: rgb(33, 33, 33);
     color: beige;
}