.stemim-plans-grid {
    --stemim-columns: 4;
    display: grid;
    grid-template-columns: repeat(var(--stemim-columns), minmax(0, 1fr));
    gap: 22px;
    width: 100%;
    margin: 26px 0;
}

.stemim-plan-card {
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.10);
    border-radius: 18px;
    padding: 22px;
    min-height: 220px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.07);
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.stemim-plan-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.11);
    border-color: rgba(37, 99, 235, 0.22);
}

.stemim-plan-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 52px;
    height: 34px;
    padding: 0 12px;
    border-radius: 9px;
    background: #eef2ff;
    color: #253b80;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .08em;
    margin-bottom: 18px;
}

.stemim-plan-title {
    margin: 0 0 22px !important;
    font-size: 18px !important;
    line-height: 1.4 !important;
    font-weight: 700 !important;
    color: #0f172a !important;
    flex: 1;
}

.stemim-plan-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 17px;
    border-radius: 10px;
    background: #172554;
    color: #fff !important;
    text-decoration: none !important;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    transition: opacity .2s ease, transform .2s ease;
}

.stemim-plan-button:hover,
.stemim-plan-button:focus {
    color: #fff !important;
    opacity: .9;
    transform: translateY(-1px);
}

.stemim-plans-empty {
    padding: 18px 20px;
    border: 1px solid rgba(15, 23, 42, .1);
    border-radius: 12px;
    background: #fff;
}

@media (max-width: 1100px) {
    .stemim-plans-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .stemim-plans-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .stemim-plan-card {
        min-height: 0;
        padding: 18px;
    }
}