/* Club admin — sidebar nav */
.club-nav-item {
    border-left: 3px solid transparent !important;
    transition: background-color 0.1s, border-color 0.1s, color 0.1s;
}
.club-nav-item.active {
    background-color: rgba(12, 68, 124, 0.1) !important;
    color: var(--dink-pin-blue) !important;
    border-left-color: var(--dink-pin-blue) !important;
    font-weight: 600;
}
.club-nav-item:not(.active):hover {
    background-color: rgba(0, 0, 0, 0.04) !important;
}

/* Club admin — mobile horizontal tab nav */
.club-mobile-nav {
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}
.club-mobile-nav::-webkit-scrollbar {
    display: none;
}
.club-mobile-nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.45rem 0.8rem;
    border-radius: 0.5rem;
    color: #6c757d;
    text-decoration: none;
    font-size: 0.65rem;
    text-align: center;
    min-width: 58px;
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid transparent;
    transition: background-color 0.15s, color 0.15s;
    line-height: 1.2;
}
.club-mobile-nav-link.active {
    color: var(--dink-pin-blue);
    background: rgba(12, 68, 124, 0.1);
    border-color: rgba(12, 68, 124, 0.2);
    font-weight: 600;
}

/* Card hover lift */
.card-hover {
    transition: box-shadow 0.18s, transform 0.15s;
    text-decoration: none;
}
.card-hover:hover {
    box-shadow: 0 0.35rem 0.9rem rgba(0, 0, 0, 0.12) !important;
    transform: translateY(-2px);
}

/* Dashboard stat cards */
.stat-card-primary {
    background: linear-gradient(135deg, var(--dink-pin-blue) 0%, #083568 100%);
    color: #fff;
}
.stat-card-success {
    background: linear-gradient(135deg, #198754 0%, #0b5c38 100%);
    color: #fff;
}
.stat-card-warning {
    background: linear-gradient(135deg, #ffc107 0%, #d4a000 100%);
    color: #212529;
}

/* Collapsible alerts (e.g. fees sibling-warnings) */
.sibling-warnings > summary {
    cursor: pointer;
    list-style: none;
}
.sibling-warnings > summary::-webkit-details-marker {
    display: none;
}
.sibling-warnings[open] > summary .chevron {
    transform: rotate(180deg);
}
.sibling-warnings > summary .chevron {
    transition: transform 0.15s;
    display: inline-block;
}