.organiza      { background: #fff;       padding: 60px 20px; }
.patrocinadores { background: var(--bg); padding: 60px 20px; }
.colabs        { background: #fff;       padding: 60px 20px; }
.participacion { background: var(--bg);  padding: 60px 20px; }

.logos-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 36px;
}

.logo-card {
    background: var(--card);
    border-radius: 16px;
    padding: 24px 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.07);
    border: 1px solid rgba(0,0,0,0.05);
    transition: all 0.35s ease;
}
.logo-card img {
    max-width: 180px;
    max-height: 120px;
    object-fit: contain;
}
.logo-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 40px rgba(255,123,0,0.18);
    border-color: rgba(255,123,0,0.2);
}

/* Tamaños de patrocinadores */
.logo-card.size-xxl img { max-width: 280px; max-height: 180px; }
.logo-card.size-xl  img { max-width: 220px; max-height: 140px; }
.logo-card.size-l   img { max-width: 180px; max-height: 120px; }

/* Participación */
.xarxa-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
    margin-top: 32px;
}
.xarxa-wrap img {
    max-width: 700px;
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.xarxa-wrap img:hover {
    transform: scale(1.02);
    box-shadow: 0 18px 55px rgba(0,0,0,0.12);
}