body {
    background: #003366;
}

#centre {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

/* CADENAT CARD */
.lock-box {
    width: 360px;
    background: #ffffff;
    border-radius: 35px 35px 20px 20px;
    padding: 30px;
    position: relative;
    box-shadow: 0 15px 35px rgba(0,0,0,0.25);
}

/* EFFET CADENAT HAUT */
.lock-box::before {
    content: "";
    position: absolute;
    top: -35px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 60px;
    border: 6px solid #ffffff;
    border-bottom: none;
    border-radius: 60px 60px 0 0;
}

/* ICONE */
.lock-icon {
    text-align: center;
    font-size: 42px;
    margin-bottom: 10px;
}

/* INPUTS */
.lock-box input {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid #ddd;
}

/* BUTTON */
#but {
    width: 100%;
    padding: 10px;
    background: #3498db;
    border: none;
    color: white;
    border-radius: 8px;
}

#but:hover {
    background: #2980b9;
}

/* ERROR */
.login-error {
    background: #f8d7da;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 10px;
}