/* GROUP HEADER */
.group-header {
    padding: 10px 14px;
    background: linear-gradient(90deg, #2a2f4f, #4b527e);
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    border-radius: 6px;
    margin-top: 8px;
    transition: background 0.3s;
}

.group-header:hover {
    background: linear-gradient(90deg, #3b3f6f, #5c629e);
}

/* GROUP CONTENT */
.group-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    padding-left: 10px;
}

.group-content.open {
    max-height: 2000px; /* suficient pentru orice grup */
}

/* ACTIVE CHANNEL HIGHLIGHT */
.active-channel {
    background: #ffe08a !important;
    border-left: 4px solid #ffb300;
    border-radius: 4px;
}