body {
    margin: 0;
}

#header {
    background-color: rgb(48, 48, 48);
    text-align: center;
    height: 4vw;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    transition: height 0.3s ease;
    z-index: 999;
}

#header a {
    color: beige;
    display: inline-block;
    padding: 0.8%;
    padding-left: 3%;
    padding-right: 3%;
    font-size: 0.8vw;
    font-family: Sans-serif;
    font-weight: 600;
    transition: padding 0.3s ease;
    letter-spacing: 3px;
}

header div {
    width: 2px;
    height: 0.8vw;
    display: inline-block;
    background-color: black;
}

a {
    text-decoration: none;
}

#witam1 {
    position: absolute;
    font-size: 2.5vw;
    z-index: 1;
    margin-left: 37%;
    color: beige;
    margin-top: 5%;
    text-shadow: 3px 5px 2px rgba(0, 0, 0, 0.5);
}

#hed {
    width: 100%;
    height: 4vw;
}

.photos {
    width: 100%;
    position: relative;
    height: 400px;
    background-image: url('../back2.jpg');
    background-size: 2600px auto;
    background-repeat: no-repeat;
    filter: blur(5px);
    background-attachment: fixed;
    background-position: center bottom -340px;
}

#kontakt {
    width: 75%;
    height: 400px;
    background-color: rgb(65, 65, 65);
    text-align: center;
    font-size: 1.5vw;
    font-family: Sans-serif;
    font-weight: 600;
    padding-left: 17%;
    padding-right: 15%;
    color: beige;
    display: flex;
    align-items: center;
}

#kontakt div {
    height: 250px;
    display: inline-block;
}

#opinie {
    padding-top: 20px;
    width: 100%;
    height: 600px;
    background-color: rgb(99, 99, 99);
    text-align: center;
}

#opinie h1 {
    font-family: Sans-serif;
    font-weight: 600;
    color: beige;
}

#opinie div {
    height: 160px;
    width: 33%;
    display: inline-block;
    color: beige;
}

#opinie p {
    font-family: Sans-serif;
    font-weight: 600;
    font-size: 17px;
}

#opinie div hr {
    width: 20%;
    height: 2px;
    border: none;
    background-color: rgb(32, 138, 173);
    margin-top: 70px;
}

#d {
    width: 20%;
    height: 2px;
    border: none;
    display: none;
    background-color: rgb(32, 138, 173);
    margin-top: 70px;
}

@keyframes zmiana {
    from { padding: 25px; font-size: 25px; }
    to { padding: 27px; font-size: 27px; }
}

#opinie a {
    border: 2px solid black;
    background: linear-gradient(to bottom, rgba(11, 93, 148, 0.8), rgba(82, 153, 219, 0.8));
    padding: 3%;
    color: rgb(255, 255, 255);
    border-radius: 3px;
    font-family: Sans-serif;
    font-weight: 600;
    font-size: 25px;
}

footer {
    width: 100%;
    height: 80px;
    margin-bottom: 0;
    background-color: rgb(48, 48, 48);
    text-align: center;
    padding-top: 30px;
}

footer h3 {
    margin-top: 10px;
    font-size: 23px;
    font-weight: 200;
    color: beige;
}

/* Responsywność */
@media screen and (max-width: 767px) {
    #header { height: 13.5vw; }
    #header a { font-size: 3.2vw; }
    #witam1 {
        font-size: 10vw;
        position: absolute;
        top: 15%;
        left: 18%;
        transform: translate(-50%, -50%);
    }
    #kontakt { font-size: 3vw; height: 350px; padding-left: 10%; }
    #opinie { height: 650px; }
    #opinie p { font-size: 14px; font-weight: 500; }
    #opinie div { height: 60px; }
    #opinie div hr { margin-top: 30px; }
    #opinie a { padding: 7%; font-size: 15px; font-weight: 600; }
    #d { display: inline-block; }
}

@media screen and (min-width: 768px) and (max-width: 1199px) {
    #header { height: 12.5vw; }
    #header a { font-size: 3.3vw; }
    #witam1 {
        font-size: 8vw;
        position: absolute;
        top: 15%;
        left: 18%;
        transform: translate(-50%, -50%);
    }
    #kontakt { font-size: 2.2vw; height: 350px; padding-left: 10%; }
    #opinie { height: 650px; }
    #opinie p { font-size: 17px; }
    #opinie div { height: 60px; width: 45%; }
    #opinie a { padding: 7%; font-size: 20px; font-weight: 600; }
    #d { display: inline-block; }
}

@media screen and (min-width: 1200px) {
    #header { height: 5vw; }
    #header a { font-size: 1vw; }
    #witam1 {
        font-size: 3.5vw;
        position: absolute;
        top: 15%;
        left: 14%;
        transform: translate(-50%, -50%);
    }
    #opinie a:hover {
        animation-name: zmiana;
        animation-duration: 0.2s;
        animation-fill-mode: forwards;
        animation-direction: alternate;
    }
    #opinie a:active { background-color: rgb(17, 95, 238); }
}