.user-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px;
    position: relative;
    z-index: 0;
    overflow: visible;
}

.user-card {
    background: var(--bg-glass);
    padding: 12px;
    margin-top: 4px;
    border-radius: 12px;
    border: 1px solid var(--border-subtle);

    position: relative;
    z-index: auto;
    backdrop-filter: none;
    overflow: visible;
}

.user-top {
    display: flex;
    justify-content: space-between;
    font-weight: bold;
}

.email {
    font-size: 0.85em;
    opacity: 0.7;
    margin-top: 6px;
}

.rank select {
    width: 100%;
    margin-top: 10px;
}

.input-error {
    border: 2px solid #ff4d4d;
    background: rgba(255, 77, 77, 0.08);
    box-shadow: 0 0 8px rgba(255, 77, 77, 0.4);
    transition: 0.2s;
}