* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    background:
        radial-gradient(circle at top, rgba(212, 154, 0, 0.10), transparent 34%),
        linear-gradient(180deg, #f4f7fb 0%, #ffffff 58%, #eef3f9 100%);
    color: #173F73;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
}

.seite {
    width: calc(100% - 32px);
    max-width: 1000px;
    margin: 28px auto;
    padding: 28px 30px 24px;
    background: rgba(255, 255, 255, 0.97);
    border: 1px solid #d7dee7;
    border-radius: 14px;
    box-shadow: 0 8px 28px rgba(23, 63, 115, 0.10);
}

/* Kopfbereich */

.seiten-kopf {
    text-align: center;
    margin-bottom: 26px;
}

.radio-name {
    color: #173F73;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: 2px;
}

.motto {
    margin-top: 4px;
    color: #c00000;
    font-size: 14px;
    font-style: italic;
    font-weight: 600;
}

.kopf-trennlinie {
    width: 90px;
    height: 3px;
    margin: 16px auto 14px;
    background: #d49a00;
    border-radius: 3px;
}

.seiten-kopf h1 {
    margin: 0 0 8px;
    color: #c00000;
    font-size: 32px;
    line-height: 1.2;
    font-weight: 800;
}

.einleitung {
    max-width: 700px;
    margin: 0 auto;
    color: #173F73;
    font-size: 16px;
    line-height: 1.5;
}

/* Sponsoren */

.sponsoren-liste {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.sponsor-karte {
    display: flex;
    align-items: center;
    gap: 28px;
    padding: 20px 24px;
    background: #ffffff;
    border: 1px solid #d5dce5;
    border-left: 6px solid #c00000;
    border-radius: 11px;
    box-shadow: 0 4px 14px rgba(23, 63, 115, 0.07);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.sponsor-karte:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 18px rgba(23, 63, 115, 0.12);
}

.sponsor-logo-bereich {
    flex: 0 0 260px;
    min-height: 145px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
    background: #fafafa;
    border: 1px solid #e3e3e3;
    border-radius: 8px;
}

.sponsor-logo-bereich a {
    display: flex;
    align-items: center;
    justify-content: center;
}

.sponsor-logo {
    display: block;
    width: auto;
    max-width: 235px;
    max-height: 120px;
    height: auto;
    border-radius: 4px;
}

.logo-platzhalter {
    color: #173F73;
    font-size: 18px;
    font-weight: 700;
}

.sponsor-info {
    flex: 1;
    min-width: 0;
}

.sponsor-info h2 {
    margin: 0 0 5px;
    color: #c00000;
    font-size: 25px;
    line-height: 1.2;
    font-weight: 800;
}

.inhaber {
    margin-bottom: 10px;
    color: #173F73;
    font-size: 17px;
    font-weight: 700;
}

.sponsor-info p {
    max-width: 650px;
    margin: 0;
    color: #173F73;
    font-size: 16px;
    line-height: 1.5;
}

.mehr-button {
    display: inline-block;
    margin-top: 14px;
    padding: 9px 16px;
    border-radius: 6px;
    background: #173F73;
    color: #ffffff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    transition: opacity 0.18s ease, transform 0.18s ease;
}

.mehr-button:hover {
    opacity: 0.88;
    transform: translateY(-1px);
}

/* Unterstützung */

.unterstuetzen {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-top: 24px;
    padding: 20px 24px;
    background: #f5f8fc;
    border: 1px solid #d4dfeb;
    border-top: 4px solid #173F73;
    border-radius: 11px;
}

.unterstuetzen-inhalt {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.herz {
    flex: 0 0 auto;
    color: #c00000;
    font-size: 32px;
    line-height: 1;
}

.unterstuetzen h2 {
    margin: 0 0 4px;
    color: #173F73;
    font-size: 19px;
    line-height: 1.3;
}

.unterstuetzen p {
    margin: 0;
    color: #173F73;
    font-size: 14px;
    line-height: 1.4;
}

.sponsor-button {
    flex: 0 0 auto;
    display: inline-block;
    padding: 11px 18px;
    border-radius: 6px;
    background: #d49a00;
    color: #ffffff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.10);
    transition: opacity 0.18s ease, transform 0.18s ease;
}

.sponsor-button:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* Keine Sponsoren */

.leer-box {
    padding: 30px;
    text-align: center;
    background: #f5f8fc;
    border: 1px solid #d7e0ea;
    border-radius: 10px;
}

.leer-box h2 {
    margin: 0 0 8px;
    color: #c00000;
}

/* Fußbereich */

.seiten-fuss {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid #dce2e9;
    text-align: center;
    color: #173F73;
    font-size: 13px;
    line-height: 1.6;
}

.seiten-fuss a {
    color: #173F73;
    font-weight: 700;
    text-decoration: none;
}

.seiten-fuss a:hover {
    color: #c00000;
    text-decoration: underline;
}

/* Tablet / Smartphone */

@media (max-width: 720px) {

    .seite {
        width: calc(100% - 20px);
        margin: 12px auto;
        padding: 22px 16px 18px;
        border-radius: 11px;
    }

    .seiten-kopf {
        margin-bottom: 20px;
    }

    .seiten-kopf h1 {
        font-size: 27px;
    }

    .einleitung {
        font-size: 14px;
    }

    .sponsor-karte {
        gap: 18px;
        padding: 16px;
    }

    .sponsor-logo-bereich {
        flex: 0 0 190px;
        min-height: 115px;
    }

    .sponsor-logo {
        max-width: 170px;
        max-height: 95px;
    }

    .sponsor-info h2 {
        font-size: 22px;
    }

    .inhaber {
        font-size: 15px;
    }

    .sponsor-info p {
        font-size: 14px;
    }

    .unterstuetzen {
        align-items: flex-start;
    }
}

@media (max-width: 560px) {

    .seite {
        width: calc(100% - 12px);
        margin: 6px auto;
        padding: 18px 10px 15px;
    }

    .radio-name {
        font-size: 14px;
        letter-spacing: 1.5px;
    }

    .motto {
        font-size: 12px;
    }

    .seiten-kopf h1 {
        font-size: 24px;
    }

    .sponsor-karte {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
        padding: 13px;
    }

    .sponsor-logo-bereich {
        flex-basis: auto;
        width: 100%;
        min-height: 105px;
    }

    .sponsor-logo {
        max-width: 210px;
        max-height: 90px;
    }

    .sponsor-info h2 {
        font-size: 20px;
    }

    .inhaber {
        font-size: 14px;
    }

    .sponsor-info p {
        font-size: 13px;
    }

    .mehr-button {
        margin-top: 11px;
        padding: 8px 13px;
    }

    .unterstuetzen {
        flex-direction: column;
        gap: 14px;
        padding: 16px;
    }

    .unterstuetzen h2 {
        font-size: 17px;
    }

    .sponsor-button {
        align-self: flex-start;
    }
}