html {
            background-color: #ffffff;
        }
        body {
            margin: 0;
            padding: 0;
            min-height: 100vh;
            position: relative;
            z-index: 0;
        }
        body::before {
            content: "";
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background-image: url('https://www.oxyconcepts.com/ims0001/ims0003.webp');
            background-repeat: repeat;
            background-position: top left;
            z-index: -1;
        }
        header {
            height: 125px;
            padding: 60px 0;
            text-align: center;
        }
        main {
            padding: 0.5rem 2rem;
        }
        footer {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            height: 120px;
            padding: 1rem;
            text-align: center;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 18px;
            font-family: Arial, sans-serif;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .footer-link {
            color: black;
            text-decoration: none;
            font-family: Arial, sans-serif;
        }
        .separator {
            color: #ff8f0a;
        }
        .footer-info {
            text-align: center;
            font-size: 12px;
            color: #000;
            font-family: Arial, sans-serif;
            margin-top: 2px;
            margin-bottom: 0;
        }
        .footer-info p {
            margin-top: 2px;
            margin-bottom: 0;
            line-height: 1.2;
        }
        .intro-header {
            text-align: center;
            margin-top: 10px;
            margin-bottom: 0;
        }
        .intro-title {
            color: #000000;
            font-size: 28px;
            font-family: Arial, sans-serif;
            font-weight: bold;
            margin: 0;
            letter-spacing: 1px;
        }
        .intro-slogan {
            color: #000000;
            font-size: 11px;
            font-family: Arial, sans-serif;
            font-weight: normal;
            margin-top: 5px;
            letter-spacing: 10px;
        }
        a:link, a:visited {
            color: black;
            text-decoration: none;
            font-weight: normal;
        }
        a:active, a:hover {
            color: #ff8f0a;
            text-decoration: none;
            font-weight: normal;
        }
        .unsichtbarer-container {
            max-width: 900px;
            margin: 0 auto;
            padding: 2rem;
        }
        .unsichtbarer-container h2 {
            text-align: center;
            font-family: "Arial", sans-serif;
            font-size: 28px;
            color: #000000;
        }
        .unsichtbarer-container p {
            text-align: justify;
            font-family: "Arial", sans-serif;
            font-size: 18px;
            color: #000000;
            line-height: 1.6;
        }
        .cta-box {
            background-color: rgba(0, 0, 0, 0.7);
            color: #fff;
            box-sizing: border-box;
            padding: 1.0rem 2.5rem;
            text-align: center;
            border-radius: 1rem;
            margin-top: 1rem;
            margin-bottom: 1rem;
            max-width: 950px;
            margin-left: auto;
            margin-right: auto;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        }
        .cta-box h2 {
            font-family: 'Arial', sans-serif;
            font-size: 28px;
            font-weight: bold;
            margin-top: 0.5rem;
            margin-bottom: 0.5rem;
            color: #ff8f0a;
        }
        .cta-box p {
            font-family: 'Arial', sans-serif;
            font-size: 18px;
            font-weight: normal;
            margin-bottom: 1rem;
            color: #ffffff;
        }
        .cta-box p.cta-sub {
            font-size: 13px;
        }
        .cta-button {
            display: inline-block;
            margin-top: 1rem;
            background-color: #ff8f0a;
            color: white;
            padding: 0.75rem 1.5rem;
            font-weight: bold;
            border-radius: 0.5rem;
            text-decoration: none;
            font-family: 'Arial', sans-serif;
            font-size: 18px;
            transition: background-color 0.3s, color 0.3s;
        }
        .cta-button:hover {
            background-color: #ffffff;
            color: #ff8f0a;
        }
        .cta-sub {
            font-family: 'Arial', sans-serif;
            font-size: 13px;
            font-style: italic;
            color: #aaaaaa;
            margin-top: 1rem;
        }
        .gelbe-box {
            background-color: rgba(255, 143, 10, 0.7);
            border: 1px solid rgba(255, 143, 10, 0.7);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
            box-sizing: border-box;
            padding: 1.5rem 2.5rem;
            border-radius: 12px;
            max-width: 950px;
            margin: 1rem auto;
        }
        .gelbe-box h2 {
            text-align: center;
            font-family: 'Arial', sans-serif;
            font-size: 28px;
            font-weight: bold;
            margin-top: 0.5rem;
            margin-bottom: 0.5rem;
            color: #000000;
        }
        .gelbe-box p {
            text-align: justify;
            font-family: 'Arial', sans-serif;
            font-size: 18px;
            font-weight: normal;
            margin-bottom: 0.5rem;
            color: #000000;
            line-height: 1.6;
        }
        .graue-box {
            background-color: rgba(181, 181, 181, 0.6);
            border: 1px solid rgba(181, 181, 181, 0.6);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
            box-sizing: border-box;
            padding: 1.5rem 2.5rem;
            border-radius: 12px;
            max-width: 950px;
            margin: 1rem auto;
        }
        .graue-box h2 {
            text-align: center;
            font-family: 'Arial', sans-serif;
            font-size: 28px;
            font-weight: bold;
            margin-top: 0.5rem;
            margin-bottom: 1rem;
            color: #000000;
        }
        .graue-box h3 {
            text-align: left;
            font-family: 'Arial', sans-serif;
            font-size: 22px;
            font-weight: bold;
            margin-top: 2rem;
            margin-bottom: 0;
            color: #000000;
        }
        .graue-box p {
            text-align: justify;
            font-family: 'Arial', sans-serif;
            font-size: 18px;
            font-weight: normal;
            margin-top: 0.5rem;
            margin-bottom: 0.5rem;
            color: #000000;
            line-height: 1.6;
        }
        .leistung {
            max-width: 900px;
            margin: 0 auto;
            padding-top: 2.5rem;
            padding-bottom: 0;
        }
        .leistung h2 {
            text-align: center;
            font-family: 'Arial', sans-serif;
            font-size: 28px;
            font-weight: bold;
            margin-top: 0.5rem;
            margin-bottom: 0.5rem;
            color: #000000;
        }
        .slider-container {
            position: relative;
            max-width: 950px;
            margin: 2rem auto;
            overflow: hidden;
        }
        .slider-wrapper {
            position: relative;
            padding-bottom: 2.5rem;
        }
        .slider-track {
            display: flex;
            transition: transform 0.4s ease;
            will-change: transform;
            padding: 0 1rem;
            margin: 0 -0.5rem;
        }
        .slide {
            flex: 0 0 auto;
            width: calc(100% - 2rem);
            max-width: 300px;
            margin: 0 0.5rem;
            padding: 0.5rem 2rem;
            border-radius: 12px;
            color: #fff;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        }
        .slide h3 {
            text-align: center;
            font-size: 18px;
            font-family: 'Arial', sans-serif;
            color: #000000;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.5rem;
        }
        .slide p {
            text-align: left;
            font-size: 18px;
            font-family: 'Arial', sans-serif;
            font-weight: normal;
            color: #000000;
            line-height: 1.4;
        }
        .slide:nth-child(1) { background: rgba(255, 210, 0, 0.7); }
        .slide:nth-child(2) { background: rgba(255, 143, 10, 0.7); }
        .slide:nth-child(3) { background: rgba(253, 76, 29, 0.7); }
        .slide:nth-child(4) { background: rgba(240, 88, 242, 0.7); }
        .slide:nth-child(5) { background: rgba(184, 95, 253, 0.7); }
        .slide:nth-child(6) { background: rgba(55, 168, 255, 0.7); }
        .slide:nth-child(7) { background: rgba(4, 232, 197, 0.7); }
        .slide:nth-child(8) { background: rgba(144, 236, 0, 0.7); }
        .arrow {
            position: absolute;
            bottom: 0;
            background: white;
            border-radius: 50%;
            width: 30px;
            height: 30px;
            border: none;
            box-shadow: 0 0 6px rgba(0,0,0,0.1);
            cursor: pointer;
            font-size: 1.5rem;
            line-height: 1;
            z-index: 10;
        }
        .arrow-left { left: 0; }
        .arrow-right { right: 0; }
        .dots {
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 12px;
        }
        .dot {
            width: 12px;
            height: 12px;
            background: #bbb;
            border-radius: 50%;
            cursor: pointer;
        }
        .dot.active { background: #444; }
#success-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    background: rgba(0, 128, 0, 0.95);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 32px;
    z-index: 9999;
    max-width: 90%;
    width: 440px;
    height: 120px;
    color: white;
    font-family: sans-serif;
    font-size: 22px;
    text-align: center;
    opacity: 1;
    transition: opacity 0.5s ease, transform 0.5s ease;
    pointer-events: auto;
}

#success-popup.hide {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.95);
    pointer-events: none;
}

#success-popup img {
    width: 34px;
    height: 90.5px;
    object-fit: contain;
    flex-shrink: 0;
}

#success-popup > div.message {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    flex: 1;
    position: relative;
}

#success-popup button.close-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    background: transparent;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    font-weight: bold;
    user-select: none;
    transition: color 0.5s ease;
}

#success-popup button.close-btn:hover {
    color: #ccc;
}
.cta-sub {
    transform: translateZ(0);
    backface-visibility: hidden;
    will-change: transform;
}