:root {
    /*--primary: #c6a769;marron*/
    --primary: #415E87; /* bleu*/
    /*--primary-dark: #b99249;*/
    --primary-dark: #415E87;
    --dark: #1f1f1f;
    --error: #b00020;
    --light: #f8f6f2;
    --beige-bg: #F5F5DC;
    --white: #ffffff;
    --shadow: 0 10px 25px rgba(0,0,0,0.08);
    --transition: 0.3s ease;
}
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Arial,Helvetica,sans-serif;
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:20px;
    background:#111;
    overflow:hidden;
    position:relative;
}

/* ===============================
FOND PREMIUM
================================ */
body::before{
    content:"";
    position:fixed;
    inset:0;
    background:
    linear-gradient(rgba(0,0,0,.38),rgba(0,0,0,.52)),
    url("view/fond-login.jpg") center center / cover no-repeat;
    transform:scale(1.05);
    animation:zoomBg 18s ease-in-out infinite alternate;
    z-index:-2;
}

body::after{
    content:"";
    position:fixed;
    inset:0;
    backdrop-filter:blur(3px);
    z-index:-1;
}

@keyframes zoomBg{
    from{transform:scale(1.03);}
    to{transform:scale(1.10);}
}

/* ===============================
CARD
================================ */
.logo{
        width:100px;
}
.card{
    width:100%;
    max-width:460px;
    background:rgba(255,255,255,.7);
    backdrop-filter:blur(10px);
    border-radius:24px;
    padding:10px 42px 32px;
    box-shadow:0 30px 80px rgba(0,0,0,.22);
    text-align:center;
    animation:fadeUp .8s ease;
    align-self: start;

}

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

/* ===============================
TYPO
================================ */
.names{
    font-family:Georgia,serif;
    font-size:40px;
    font-style:italic;
    color:var(--primary);
    line-height:1.15;
    margin-bottom:6px;
    font-weight:bold;
}

.date{
    font-size:14px;
    letter-spacing:2px;
    text-transform:uppercase;
    color:var(--primary);
    margin-bottom:6px;
}

.icone{
    font-size:36px;
}

h1{
    font-family:Georgia,serif;
    font-size:26px;
    color:var(--primary);
    margin-bottom:6px;
}

.desc{
    font-size:15px;
    line-height:1.6;
    color:var(--primary);
    margin-bottom:6px;
}

/* ===============================
FORM
================================ */
input{
    width:100%;
    padding:16px 18px;
    font-size:18px;
    border:1px solid #ddd;
    border-radius:14px;
    outline:none;
    margin-bottom:16px;
    transition:.25s;
}

input:focus{
    border-color:#c6a769;
    box-shadow:0 0 0 5px rgba(198,167,105,.15);
}

button{
    width:100%;
    padding:16px;
    border:0;
    border-radius:100px;
    font-size:18px;
    font-weight:700;
    cursor:pointer;
    transition:.25s;
}

/* bouton principal */
.btn-main{
    background:var(--primary);
    color:var(--white);
    box-shadow:0 15px 30px rgba(185,147,77,.25);
}

.btn-main:hover{
    transform:translateY(-1px);
}

/* bouton secondaire */
.back-link{
    display:block;
    margin-top:14px;
    padding:15px;
    border-radius:100px;
    font-size:17px;
    font-weight:700;
    text-decoration:none;
    border:2px solid var(--primary);
    color:var(--primary);
    background:var(--white);
    transition:.25s;
}

.back-link:hover{
    transform:translateY(-1px);
}

.error{
    margin-top:16px;
    padding:12px;
    background:var(--error);
    color:var(--white);
    font-size:14px;
    font-weight:700;
}

/* ===============================
RESPONSIVE
================================ */
@media(max-width:600px){

    .card{
        padding:10px 28px 20px;
        border-radius:20px;
    }

    .names{
        font-size:32px;
    }

    h1{
        font-size:22px;
    }

    .desc{
        font-size:14px;
        margin-bottom:22px;
    }

    input,
    button{
        font-size:17px;
        padding:15px;
    }

    .back-link{
        font-size:16px;
        padding:14px;
    }

}