body {
    background: #1a1a1a;
    color: #ffffff;
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
}
.container {
    max-width: 600px;
    margin: 40px auto;
    background: #2b2b2b;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 0 20px rgba(0,0,0,0.6);
}
h1 {
    text-align: center;
    color: #00cc66;
}
.feldbox {
    width: calc(50% - 12px);
    margin: 0 auto 15px auto;
}
input, select {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: #3a3a3a;
    color: white;
    font-size: 16px;
}
select:invalid { color: #888; }
.submitbutton {
    display: block;
    width: 100%;
    max-width: 320px;
    margin: 20px auto;
    padding: 14px 24px;
    background-color: #ff6600;
    color: white;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    cursor: pointer;
}
.monatsblock {
    margin: 30px 0;
}
.monatstitel {
    text-align: center;
    margin-bottom: 10px;
    font-weight: bold;
    font-size: 18px;
    color: #ffffff;
    border-top: 1px solid #555;
    padding-top: 10px;
}
.kalenderwoche {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}
.tagbutton {
    width: 60px; height: 60px;
    border-radius: 50%;
    background: #3a3a3a;
    color: white;
    border: none;
    font-size: 14px;
    cursor: pointer;
}
.tagbutton .wochentag { font-size: 12px; }
.tagbutton .tag { font-size: 16px; font-weight: bold; }
.tagbutton.active, .tagbutton:hover {
    background-color: #00cc66;
}
.zeitenfeld {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    max-width: 340px;
    margin: 20px auto;
}
.zeitbutton {
    flex: 1 1 45%;
    text-align: center;
    padding: 12px 22px;
    background-color: #00cc66;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
}
.zeitbutton:hover, .zeitbutton.active {
    background-color: #00994d;
}
.hinweis {
    text-align: center;
    color: #bbb;
}

.serviceauswahl {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
}
.servicebutton {
    background: #3a3a3a;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 15px;
    width: calc(50% - 12px);
}
.servicebutton.active {
    background-color: #00cc66;
}
.tagbutton.leer {
    visibility: hidden;
}


@media (max-width: 600px) {
    body {
    background: #1a1a1a;
    color: #ffffff;
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
}
}



}


@media (max-width: 600px) {
    .container {
        padding: 20px;
        margin: 20px auto;
    }

    .servicebutton,
    .zeitbutton,
    .submitbutton {
    display: block;
    width: 100%;
    max-width: 320px;
    margin: 20px auto;
    padding: 14px 24px;
    background-color: #ff6600;
    color: white;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    cursor: pointer;
}

    .feldbox {
        width: 100% !important;
        margin-bottom: 15px;
    }

    input {
        font-size: 16px;
    }

    h1 {
        font-size: 22px;
        margin-bottom: 20px;
    }

    .tagbutton {
        width: 50px;
        height: 50px;
        font-size: 12px;
    }

    .monatstitel {
        font-size: 16px;
    }
}


@media (max-width: 600px) {
    .servicebutton {
        width: 100% !important;
    }

    h1 {
        margin-top: 10px;
        font-size: 22px;
    }
}


@media (max-width: 600px) {
    .feldbox {
        width: 100% !important;
        max-width: 320px;
        margin: 0 auto 15px;
    }
}


@media (max-width: 600px) {
    .feldbox {
        width: 100% !important;
        max-width: 320px;
        margin: 0 auto 15px;
        display: flex;
        justify-content: center;
    }

    .feldbox input {
        width: 100%;
        max-width: 100%;
    }
}


@media (max-width: 600px) {
    .servicebutton {
        width: 100% !important;
        max-width: 320px;
        margin: 0 auto 12px;
    }
}