/* Classes dùng chung */
.index_bg-card {
    background-color: var(--index_bg-card);
}

.index_bg-dark {
    background-color: var(--index_bg-dark);
}

.index_text-accent {
    color: var(--index_text-accent);
}

/* Nút chính */
.index_btn-primary {
    background: linear-gradient(90deg, var(--index_btn-start) 0%, var(--index_btn-end) 100%);
    transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
}

.index_btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* Link xem tất cả */
.index_link-all {
    font-size: 0.75rem;
    color: #60a5fa;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: color 0.2s ease-in-out;
}

.index_link-all:hover {
    color: #93c5fd;
}

/* Grid 4 cột */
.index_grid-4-cols {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 1rem;
}

@media (min-width: 640px) {
    .index_grid-4-cols {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .index_grid-4-cols {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

/* Grid 3 cột */
.index_grid-3-cols {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 1rem;
}

@media (min-width: 768px) {
    .index_grid-3-cols {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

/* Grid 2 cột */
.index_grid-2-cols {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 1rem;
}

@media (min-width: 768px) {
    .index_grid-2-cols {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}